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-rw-r--r--arch/sh64/kernel/Makefile36
-rw-r--r--arch/sh64/kernel/alphanum.c43
-rw-r--r--arch/sh64/kernel/asm-offsets.c33
-rw-r--r--arch/sh64/kernel/dma.c297
-rw-r--r--arch/sh64/kernel/early_printk.c99
-rw-r--r--arch/sh64/kernel/entry.S2102
-rw-r--r--arch/sh64/kernel/fpu.c170
-rw-r--r--arch/sh64/kernel/head.S372
-rw-r--r--arch/sh64/kernel/init_task.c46
-rw-r--r--arch/sh64/kernel/irq.c115
-rw-r--r--arch/sh64/kernel/irq_intc.c272
-rw-r--r--arch/sh64/kernel/led.c40
-rw-r--r--arch/sh64/kernel/module.c161
-rw-r--r--arch/sh64/kernel/pci_sh5.c536
-rw-r--r--arch/sh64/kernel/pci_sh5.h107
-rw-r--r--arch/sh64/kernel/pcibios.c168
-rw-r--r--arch/sh64/kernel/process.c691
-rw-r--r--arch/sh64/kernel/ptrace.c332
-rw-r--r--arch/sh64/kernel/semaphore.c140
-rw-r--r--arch/sh64/kernel/setup.c379
-rw-r--r--arch/sh64/kernel/sh_ksyms.c62
-rw-r--r--arch/sh64/kernel/signal.c750
-rw-r--r--arch/sh64/kernel/switchto.S198
-rw-r--r--arch/sh64/kernel/sys_sh64.c304
-rw-r--r--arch/sh64/kernel/syscalls.S381
-rw-r--r--arch/sh64/kernel/time.c593
-rw-r--r--arch/sh64/kernel/traps.c982
-rw-r--r--arch/sh64/kernel/unwind.c326
-rw-r--r--arch/sh64/kernel/vmlinux.lds.S140
29 files changed, 0 insertions, 9875 deletions
diff --git a/arch/sh64/kernel/Makefile b/arch/sh64/kernel/Makefile
deleted file mode 100644
index e3467bda616..00000000000
--- a/arch/sh64/kernel/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 2000, 2001 Paolo Alberelli
-# Copyright (C) 2003 Paul Mundt
-#
-# Makefile for the Linux sh64 kernel.
-#
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-
-extra-y := head.o init_task.o vmlinux.lds
-
-obj-y := process.o signal.o entry.o traps.o irq.o irq_intc.o \
- ptrace.o setup.o time.o sys_sh64.o semaphore.o sh_ksyms.o \
- switchto.o syscalls.o
-
-obj-$(CONFIG_HEARTBEAT) += led.o
-obj-$(CONFIG_SH_ALPHANUMERIC) += alphanum.o
-obj-$(CONFIG_SH_DMA) += dma.o
-obj-$(CONFIG_SH_FPU) += fpu.o
-obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
-obj-$(CONFIG_KALLSYMS) += unwind.o
-obj-$(CONFIG_PCI) += pcibios.o
-obj-$(CONFIG_MODULES) += module.o
-
-ifeq ($(CONFIG_PCI),y)
-obj-$(CONFIG_CPU_SH5) += pci_sh5.o
-endif
-
-USE_STANDARD_AS_RULE := true
-
diff --git a/arch/sh64/kernel/alphanum.c b/arch/sh64/kernel/alphanum.c
deleted file mode 100644
index d1619d95fba..00000000000
--- a/arch/sh64/kernel/alphanum.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * arch/sh64/kernel/alphanum.c
- *
- * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Machine-independent functions for handling 8-digit alphanumeric display
- * (e.g. Agilent HDSP-253x)
- */
-#include <linux/stddef.h>
-#include <linux/sched.h>
-
-void mach_alphanum(int pos, unsigned char val);
-
-void print_seg(char *file, int line)
-{
- int i;
- unsigned int nibble;
-
- for (i = 0; i < 5; i++) {
- mach_alphanum(i, file[i]);
- }
-
- for (i = 0; i < 3; i++) {
- nibble = ((line >> (i * 4)) & 0xf);
- mach_alphanum(7 - i, nibble + ((nibble > 9) ? 55 : 48));
- }
-}
-
-void print_seg_num(unsigned num)
-{
- int i;
- unsigned int nibble;
-
- for (i = 0; i < 8; i++) {
- nibble = ((num >> (i * 4)) & 0xf);
-
- mach_alphanum(7 - i, nibble + ((nibble > 9) ? 55 : 48));
- }
-}
-
diff --git a/arch/sh64/kernel/asm-offsets.c b/arch/sh64/kernel/asm-offsets.c
deleted file mode 100644
index ca76537c16c..00000000000
--- a/arch/sh64/kernel/asm-offsets.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * This program is used to generate definitions needed by
- * assembly language modules.
- *
- * We use the technique used in the OSF Mach kernel code:
- * generate asm statements containing #defines,
- * compile this file to assembler, and then extract the
- * #defines from the assembly-language output.
- */
-
-#include <linux/stddef.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <asm/thread_info.h>
-
-#define DEFINE(sym, val) \
- asm volatile("\n->" #sym " %0 " #val : : "i" (val))
-
-#define BLANK() asm volatile("\n->" : : )
-
-int main(void)
-{
- /* offsets into the thread_info struct */
- DEFINE(TI_TASK, offsetof(struct thread_info, task));
- DEFINE(TI_EXEC_DOMAIN, offsetof(struct thread_info, exec_domain));
- DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
- DEFINE(TI_PRE_COUNT, offsetof(struct thread_info, preempt_count));
- DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
- DEFINE(TI_ADDR_LIMIT, offsetof(struct thread_info, addr_limit));
- DEFINE(TI_RESTART_BLOCK,offsetof(struct thread_info, restart_block));
-
- return 0;
-}
diff --git a/arch/sh64/kernel/dma.c b/arch/sh64/kernel/dma.c
deleted file mode 100644
index 32c6f0549bf..00000000000
--- a/arch/sh64/kernel/dma.c
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- * arch/sh64/kernel/dma.c
- *
- * DMA routines for the SH-5 DMAC.
- *
- * Copyright (C) 2003 Paul Mundt
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/types.h>
-#include <linux/irq.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <asm/hardware.h>
-#include <asm/dma.h>
-#include <asm/signal.h>
-#include <asm/errno.h>
-#include <asm/io.h>
-
-typedef struct {
- unsigned long dev_addr;
- unsigned long mem_addr;
-
- unsigned int mode;
- unsigned int count;
-} dma_info_t;
-
-static dma_info_t dma_info[MAX_DMA_CHANNELS];
-static DEFINE_SPINLOCK(dma_spin_lock);
-
-/* arch/sh64/kernel/irq_intc.c */
-extern void make_intc_irq(unsigned int irq);
-
-/* DMAC Interrupts */
-#define DMA_IRQ_DMTE0 18
-#define DMA_IRQ_DERR 22
-
-#define DMAC_COMMON_BASE (dmac_base + 0x08)
-#define DMAC_SAR_BASE (dmac_base + 0x10)
-#define DMAC_DAR_BASE (dmac_base + 0x18)
-#define DMAC_COUNT_BASE (dmac_base + 0x20)
-#define DMAC_CTRL_BASE (dmac_base + 0x28)
-#define DMAC_STATUS_BASE (dmac_base + 0x30)
-
-#define DMAC_SAR(n) (DMAC_SAR_BASE + ((n) * 0x28))
-#define DMAC_DAR(n) (DMAC_DAR_BASE + ((n) * 0x28))
-#define DMAC_COUNT(n) (DMAC_COUNT_BASE + ((n) * 0x28))
-#define DMAC_CTRL(n) (DMAC_CTRL_BASE + ((n) * 0x28))
-#define DMAC_STATUS(n) (DMAC_STATUS_BASE + ((n) * 0x28))
-
-/* DMAC.COMMON Bit Definitions */
-#define DMAC_COMMON_PR 0x00000001 /* Priority */
- /* Bits 1-2 Reserved */
-#define DMAC_COMMON_ME 0x00000008 /* Master Enable */
-#define DMAC_COMMON_NMI 0x00000010 /* NMI Flag */
- /* Bits 5-6 Reserved */
-#define DMAC_COMMON_ER 0x00000780 /* Error Response */
-#define DMAC_COMMON_AAE 0x00007800 /* Address Alignment Error */
- /* Bits 15-63 Reserved */
-
-/* DMAC.SAR Bit Definitions */
-#define DMAC_SAR_ADDR 0xffffffff /* Source Address */
-
-/* DMAC.DAR Bit Definitions */
-#define DMAC_DAR_ADDR 0xffffffff /* Destination Address */
-
-/* DMAC.COUNT Bit Definitions */
-#define DMAC_COUNT_CNT 0xffffffff /* Transfer Count */
-
-/* DMAC.CTRL Bit Definitions */
-#define DMAC_CTRL_TS 0x00000007 /* Transfer Size */
-#define DMAC_CTRL_SI 0x00000018 /* Source Increment */
-#define DMAC_CTRL_DI 0x00000060 /* Destination Increment */
-#define DMAC_CTRL_RS 0x00000780 /* Resource Select */
-#define DMAC_CTRL_IE 0x00000800 /* Interrupt Enable */
-#define DMAC_CTRL_TE 0x00001000 /* Transfer Enable */
- /* Bits 15-63 Reserved */
-
-/* DMAC.STATUS Bit Definitions */
-#define DMAC_STATUS_TE 0x00000001 /* Transfer End */
-#define DMAC_STATUS_AAE 0x00000002 /* Address Alignment Error */
- /* Bits 2-63 Reserved */
-
-static unsigned long dmac_base;
-
-void set_dma_count(unsigned int chan, unsigned int count);
-void set_dma_addr(unsigned int chan, unsigned int addr);
-
-static irqreturn_t dma_mte(int irq, void *dev_id, struct pt_regs *regs)
-{
- unsigned int chan = irq - DMA_IRQ_DMTE0;
- dma_info_t *info = dma_info + chan;
- u64 status;
-
- if (info->mode & DMA_MODE_WRITE) {
- sh64_out64(info->mem_addr & DMAC_SAR_ADDR, DMAC_SAR(chan));
- } else {
- sh64_out64(info->mem_addr & DMAC_DAR_ADDR, DMAC_DAR(chan));
- }
-
- set_dma_count(chan, info->count);
-
- /* Clear the TE bit */
- status = sh64_in64(DMAC_STATUS(chan));
- status &= ~DMAC_STATUS_TE;
- sh64_out64(status, DMAC_STATUS(chan));
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction irq_dmte = {
- .handler = dma_mte,
- .flags = IRQF_DISABLED,
- .name = "DMA MTE",
-};
-
-static irqreturn_t dma_err(int irq, void *dev_id, struct pt_regs *regs)
-{
- u64 tmp;
- u8 chan;
-
- printk(KERN_NOTICE "DMAC: Got a DMA Error!\n");
-
- tmp = sh64_in64(DMAC_COMMON_BASE);
-
- /* Check for the type of error */
- if ((chan = tmp & DMAC_COMMON_AAE)) {
- /* It's an address alignment error.. */
- printk(KERN_NOTICE "DMAC: Alignment error on channel %d, ", chan);
-
- printk(KERN_NOTICE "SAR: 0x%08llx, DAR: 0x%08llx, COUNT: %lld\n",
- (sh64_in64(DMAC_SAR(chan)) & DMAC_SAR_ADDR),
- (sh64_in64(DMAC_DAR(chan)) & DMAC_DAR_ADDR),
- (sh64_in64(DMAC_COUNT(chan)) & DMAC_COUNT_CNT));
-
- } else if ((chan = tmp & DMAC_COMMON_ER)) {
- /* Something else went wrong.. */
- printk(KERN_NOTICE "DMAC: Error on channel %d\n", chan);
- }
-
- /* Reset the ME bit to clear the interrupt */
- tmp |= DMAC_COMMON_ME;
- sh64_out64(tmp, DMAC_COMMON_BASE);
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction irq_derr = {
- .handler = dma_err,
- .flags = IRQF_DISABLED,
- .name = "DMA Error",
-};
-
-static inline unsigned long calc_xmit_shift(unsigned int chan)
-{
- return sh64_in64(DMAC_CTRL(chan)) & 0x03;
-}
-
-void setup_dma(unsigned int chan, dma_info_t *info)
-{
- unsigned int irq = DMA_IRQ_DMTE0 + chan;
- dma_info_t *dma = dma_info + chan;
-
- make_intc_irq(irq);
- setup_irq(irq, &irq_dmte);
- dma = info;
-}
-
-void enable_dma(unsigned int chan)
-{
- u64 ctrl;
-
- ctrl = sh64_in64(DMAC_CTRL(chan));
- ctrl |= DMAC_CTRL_TE;
- sh64_out64(ctrl, DMAC_CTRL(chan));
-}
-
-void disable_dma(unsigned int chan)
-{
- u64 ctrl;
-
- ctrl = sh64_in64(DMAC_CTRL(chan));
- ctrl &= ~DMAC_CTRL_TE;
- sh64_out64(ctrl, DMAC_CTRL(chan));
-}
-
-void set_dma_mode(unsigned int chan, char mode)
-{
- dma_info_t *info = dma_info + chan;
-
- info->mode = mode;
-
- set_dma_addr(chan, info->mem_addr);
- set_dma_count(chan, info->count);
-}
-
-void set_dma_addr(unsigned int chan, unsigned int addr)
-{
- dma_info_t *info = dma_info + chan;
- unsigned long sar, dar;
-
- info->mem_addr = addr;
- sar = (info->mode & DMA_MODE_WRITE) ? info->mem_addr : info->dev_addr;
- dar = (info->mode & DMA_MODE_WRITE) ? info->dev_addr : info->mem_addr;
-
- sh64_out64(sar & DMAC_SAR_ADDR, DMAC_SAR(chan));
- sh64_out64(dar & DMAC_SAR_ADDR, DMAC_DAR(chan));
-}
-
-void set_dma_count(unsigned int chan, unsigned int count)
-{
- dma_info_t *info = dma_info + chan;
- u64 tmp;
-
- info->count = count;
-
- tmp = (info->count >> calc_xmit_shift(chan)) & DMAC_COUNT_CNT;
-
- sh64_out64(tmp, DMAC_COUNT(chan));
-}
-
-unsigned long claim_dma_lock(void)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&dma_spin_lock, flags);
-
- return flags;
-}
-
-void release_dma_lock(unsigned long flags)
-{
- spin_unlock_irqrestore(&dma_spin_lock, flags);
-}
-
-int get_dma_residue(unsigned int chan)
-{
- return sh64_in64(DMAC_COUNT(chan) << calc_xmit_shift(chan));
-}
-
-int __init init_dma(void)
-{
- struct vcr_info vcr;
- u64 tmp;
-
- /* Remap the DMAC */
- dmac_base = onchip_remap(PHYS_DMAC_BLOCK, 1024, "DMAC");
- if (!dmac_base) {
- printk(KERN_ERR "Unable to remap DMAC\n");
- return -ENOMEM;
- }
-
- /* Report DMAC.VCR Info */
- vcr = sh64_get_vcr_info(dmac_base);
- printk("DMAC: Module ID: 0x%04x, Module version: 0x%04x\n",
- vcr.mod_id, vcr.mod_vers);
-
- /* Set the ME bit */
- tmp = sh64_in64(DMAC_COMMON_BASE);
- tmp |= DMAC_COMMON_ME;
- sh64_out64(tmp, DMAC_COMMON_BASE);
-
- /* Enable the DMAC Error Interrupt */
- make_intc_irq(DMA_IRQ_DERR);
- setup_irq(DMA_IRQ_DERR, &irq_derr);
-
- return 0;
-}
-
-static void __exit exit_dma(void)
-{
- onchip_unmap(dmac_base);
- free_irq(DMA_IRQ_DERR, 0);
-}
-
-module_init(init_dma);
-module_exit(exit_dma);
-
-MODULE_AUTHOR("Paul Mundt");
-MODULE_DESCRIPTION("DMA API for SH-5 DMAC");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(setup_dma);
-EXPORT_SYMBOL(claim_dma_lock);
-EXPORT_SYMBOL(release_dma_lock);
-EXPORT_SYMBOL(enable_dma);
-EXPORT_SYMBOL(disable_dma);
-EXPORT_SYMBOL(set_dma_mode);
-EXPORT_SYMBOL(set_dma_addr);
-EXPORT_SYMBOL(set_dma_count);
-EXPORT_SYMBOL(get_dma_residue);
-
diff --git a/arch/sh64/kernel/early_printk.c b/arch/sh64/kernel/early_printk.c
deleted file mode 100644
index 4f913112367..00000000000
--- a/arch/sh64/kernel/early_printk.c
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * arch/sh64/kernel/early_printk.c
- *
- * SH-5 Early SCIF console (cloned and hacked from sh implementation)
- *
- * Copyright (C) 2003, 2004 Paul Mundt <lethal@linux-sh.org>
- * Copyright (C) 2002 M. R. Brown <mrbrown@0xd6.org>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/console.h>
-#include <linux/tty.h>
-#include <linux/init.h>
-#include <asm/io.h>
-#include <asm/hardware.h>
-
-#define SCIF_BASE_ADDR 0x01030000
-#define SCIF_ADDR_SH5 PHYS_PERIPHERAL_BLOCK+SCIF_BASE_ADDR
-
-/*
- * Fixed virtual address where SCIF is mapped (should already be done
- * in arch/sh64/kernel/head.S!).
- */
-#define SCIF_REG 0xfa030000
-
-enum {
- SCIF_SCSMR2 = SCIF_REG + 0x00,
- SCIF_SCBRR2 = SCIF_REG + 0x04,
- SCIF_SCSCR2 = SCIF_REG + 0x08,
- SCIF_SCFTDR2 = SCIF_REG + 0x0c,
- SCIF_SCFSR2 = SCIF_REG + 0x10,
- SCIF_SCFRDR2 = SCIF_REG + 0x14,
- SCIF_SCFCR2 = SCIF_REG + 0x18,
- SCIF_SCFDR2 = SCIF_REG + 0x1c,
- SCIF_SCSPTR2 = SCIF_REG + 0x20,
- SCIF_SCLSR2 = SCIF_REG + 0x24,
-};
-
-static void sh_console_putc(int c)
-{
- while (!(ctrl_inw(SCIF_SCFSR2) & 0x20))
- cpu_relax();
-
- ctrl_outb(c, SCIF_SCFTDR2);
- ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0x9f), SCIF_SCFSR2);
-
- if (c == '\n')
- sh_console_putc('\r');
-}
-
-static void sh_console_flush(void)
-{
- ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0xbf), SCIF_SCFSR2);
-
- while (!(ctrl_inw(SCIF_SCFSR2) & 0x40))
- cpu_relax();
-
- ctrl_outw((ctrl_inw(SCIF_SCFSR2) & 0xbf), SCIF_SCFSR2);
-}
-
-static void sh_console_write(struct console *con, const char *s, unsigned count)
-{
- while (count-- > 0)
- sh_console_putc(*s++);
-
- sh_console_flush();
-}
-
-static int __init sh_console_setup(struct console *con, char *options)
-{
- con->cflag = CREAD | HUPCL | CLOCAL | B19200 | CS8;
-
- return 0;
-}
-
-static struct console sh_console = {
- .name = "scifcon",
- .write = sh_console_write,
- .setup = sh_console_setup,
- .flags = CON_PRINTBUFFER | CON_BOOT,
- .index = -1,
-};
-
-void __init enable_early_printk(void)
-{
- ctrl_outb(0x2a, SCIF_SCBRR2); /* 19200bps */
-
- ctrl_outw(0x04, SCIF_SCFCR2); /* Reset TFRST */
- ctrl_outw(0x10, SCIF_SCFCR2); /* TTRG0=1 */
-
- ctrl_outw(0, SCIF_SCSPTR2);
- ctrl_outw(0x60, SCIF_SCFSR2);
- ctrl_outw(0, SCIF_SCLSR2);
- ctrl_outw(0x30, SCIF_SCSCR2);
-
- register_console(&sh_console);
-}
diff --git a/arch/sh64/kernel/entry.S b/arch/sh64/kernel/entry.S
deleted file mode 100644
index 7013fcb6665..00000000000
--- a/arch/sh64/kernel/entry.S
+++ /dev/null
@@ -1,2102 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/entry.S
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2004, 2005 Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- */
-
-#include <linux/errno.h>
-#include <linux/sys.h>
-
-#include <asm/processor.h>
-#include <asm/registers.h>
-#include <asm/unistd.h>
-#include <asm/thread_info.h>
-#include <asm/asm-offsets.h>
-
-/*
- * SR fields.
- */
-#define SR_ASID_MASK 0x00ff0000
-#define SR_FD_MASK 0x00008000
-#define SR_SS 0x08000000
-#define SR_BL 0x10000000
-#define SR_MD 0x40000000
-
-/*
- * Event code.
- */
-#define EVENT_INTERRUPT 0
-#define EVENT_FAULT_TLB 1
-#define EVENT_FAULT_NOT_TLB 2
-#define EVENT_DEBUG 3
-
-/* EXPEVT values */
-#define RESET_CAUSE 0x20
-#define DEBUGSS_CAUSE 0x980
-
-/*
- * Frame layout. Quad index.
- */
-#define FRAME_T(x) FRAME_TBASE+(x*8)
-#define FRAME_R(x) FRAME_RBASE+(x*8)
-#define FRAME_S(x) FRAME_SBASE+(x*8)
-#define FSPC 0
-#define FSSR 1
-#define FSYSCALL_ID 2
-
-/* Arrange the save frame to be a multiple of 32 bytes long */
-#define FRAME_SBASE 0
-#define FRAME_RBASE (FRAME_SBASE+(3*8)) /* SYSCALL_ID - SSR - SPC */
-#define FRAME_TBASE (FRAME_RBASE+(63*8)) /* r0 - r62 */
-#define FRAME_PBASE (FRAME_TBASE+(8*8)) /* tr0 -tr7 */
-#define FRAME_SIZE (FRAME_PBASE+(2*8)) /* pad0-pad1 */
-
-#define FP_FRAME_SIZE FP_FRAME_BASE+(33*8) /* dr0 - dr31 + fpscr */
-#define FP_FRAME_BASE 0
-
-#define SAVED_R2 0*8
-#define SAVED_R3 1*8
-#define SAVED_R4 2*8
-#define SAVED_R5 3*8
-#define SAVED_R18 4*8
-#define SAVED_R6 5*8
-#define SAVED_TR0 6*8
-
-/* These are the registers saved in the TLB path that aren't saved in the first
- level of the normal one. */
-#define TLB_SAVED_R25 7*8
-#define TLB_SAVED_TR1 8*8
-#define TLB_SAVED_TR2 9*8
-#define TLB_SAVED_TR3 10*8
-#define TLB_SAVED_TR4 11*8
-/* Save R0/R1 : PT-migrating compiler currently dishounours -ffixed-r0 and -ffixed-r1 causing
- breakage otherwise. */
-#define TLB_SAVED_R0 12*8
-#define TLB_SAVED_R1 13*8
-
-#define CLI() \
- getcon SR, r6; \
- ori r6, 0xf0, r6; \
- putcon r6, SR;
-
-#define STI() \
- getcon SR, r6; \
- andi r6, ~0xf0, r6; \
- putcon r6, SR;
-
-#ifdef CONFIG_PREEMPT
-# define preempt_stop() CLI()
-#else
-# define preempt_stop()
-# define resume_kernel restore_all
-#endif
-
- .section .data, "aw"
-
-#define FAST_TLBMISS_STACK_CACHELINES 4
-#define FAST_TLBMISS_STACK_QUADWORDS (4*FAST_TLBMISS_STACK_CACHELINES)
-
-/* Register back-up area for all exceptions */
- .balign 32
- /* Allow for 16 quadwords to be pushed by fast tlbmiss handling
- * register saves etc. */
- .fill FAST_TLBMISS_STACK_QUADWORDS, 8, 0x0
-/* This is 32 byte aligned by construction */
-/* Register back-up area for all exceptions */
-reg_save_area:
- .quad 0
- .quad 0
- .quad 0
- .quad 0
-
- .quad 0
- .quad 0
- .quad 0
- .quad 0
-
- .quad 0
- .quad 0
- .quad 0
- .quad 0
-
- .quad 0
- .quad 0
-
-/* Save area for RESVEC exceptions. We cannot use reg_save_area because of
- * reentrancy. Note this area may be accessed via physical address.
- * Align so this fits a whole single cache line, for ease of purging.
- */
- .balign 32,0,32
-resvec_save_area:
- .quad 0
- .quad 0
- .quad 0
- .quad 0
- .quad 0
- .balign 32,0,32
-
-/* Jump table of 3rd level handlers */
-trap_jtable:
- .long do_exception_error /* 0x000 */
- .long do_exception_error /* 0x020 */
- .long tlb_miss_load /* 0x040 */
- .long tlb_miss_store /* 0x060 */
- ! ARTIFICIAL pseudo-EXPEVT setting
- .long do_debug_interrupt /* 0x080 */
- .long tlb_miss_load /* 0x0A0 */
- .long tlb_miss_store /* 0x0C0 */
- .long do_address_error_load /* 0x0E0 */
- .long do_address_error_store /* 0x100 */
-#ifdef CONFIG_SH_FPU
- .long do_fpu_error /* 0x120 */
-#else
- .long do_exception_error /* 0x120 */
-#endif
- .long do_exception_error /* 0x140 */
- .long system_call /* 0x160 */
- .long do_reserved_inst /* 0x180 */
- .long do_illegal_slot_inst /* 0x1A0 */
- .long do_NMI /* 0x1C0 */
- .long do_exception_error /* 0x1E0 */
- .rept 15
- .long do_IRQ /* 0x200 - 0x3C0 */
- .endr
- .long do_exception_error /* 0x3E0 */
- .rept 32
- .long do_IRQ /* 0x400 - 0x7E0 */
- .endr
- .long fpu_error_or_IRQA /* 0x800 */
- .long fpu_error_or_IRQB /* 0x820 */
- .long do_IRQ /* 0x840 */
- .long do_IRQ /* 0x860 */
- .rept 6
- .long do_exception_error /* 0x880 - 0x920 */
- .endr
- .long do_software_break_point /* 0x940 */
- .long do_exception_error /* 0x960 */
- .long do_single_step /* 0x980 */
-
- .rept 3
- .long do_exception_error /* 0x9A0 - 0x9E0 */
- .endr
- .long do_IRQ /* 0xA00 */
- .long do_IRQ /* 0xA20 */
- .long itlb_miss_or_IRQ /* 0xA40 */
- .long do_IRQ /* 0xA60 */
- .long do_IRQ /* 0xA80 */
- .long itlb_miss_or_IRQ /* 0xAA0 */
- .long do_exception_error /* 0xAC0 */
- .long do_address_error_exec /* 0xAE0 */
- .rept 8
- .long do_exception_error /* 0xB00 - 0xBE0 */
- .endr
- .rept 18
- .long do_IRQ /* 0xC00 - 0xE20 */
- .endr
-
- .section .text64, "ax"
-
-/*
- * --- Exception/Interrupt/Event Handling Section
- */
-
-/*
- * VBR and RESVEC blocks.
- *
- * First level handler for VBR-based exceptions.
- *
- * To avoid waste of space, align to the maximum text block size.
- * This is assumed to be at most 128 bytes or 32 instructions.
- * DO NOT EXCEED 32 instructions on the first level handlers !
- *
- * Also note that RESVEC is contained within the VBR block
- * where the room left (1KB - TEXT_SIZE) allows placing
- * the RESVEC block (at most 512B + TEXT_SIZE).
- *
- * So first (and only) level handler for RESVEC-based exceptions.
- *
- * Where the fault/interrupt is handled (not_a_tlb_miss, tlb_miss
- * and interrupt) we are a lot tight with register space until
- * saving onto the stack frame, which is done in handle_exception().
- *
- */
-
-#define TEXT_SIZE 128
-#define BLOCK_SIZE 1664 /* Dynamic check, 13*128 */
-
- .balign TEXT_SIZE
-LVBR_block:
- .space 256, 0 /* Power-on class handler, */
- /* not required here */
-not_a_tlb_miss:
- synco /* TAKum03020 (but probably a good idea anyway.) */
- /* Save original stack pointer into KCR1 */
- putcon SP, KCR1
-
- /* Save other original registers into reg_save_area */
- movi reg_save_area, SP
- st.q SP, SAVED_R2, r2
- st.q SP, SAVED_R3, r3
- st.q SP, SAVED_R4, r4
- st.q SP, SAVED_R5, r5
- st.q SP, SAVED_R6, r6
- st.q SP, SAVED_R18, r18
- gettr tr0, r3
- st.q SP, SAVED_TR0, r3
-
- /* Set args for Non-debug, Not a TLB miss class handler */
- getcon EXPEVT, r2
- movi ret_from_exception, r3
- ori r3, 1, r3
- movi EVENT_FAULT_NOT_TLB, r4
- or SP, ZERO, r5
- getcon KCR1, SP
- pta handle_exception, tr0
- blink tr0, ZERO
-
- .balign 256
- ! VBR+0x200
- nop
- .balign 256
- ! VBR+0x300
- nop
- .balign 256
- /*
- * Instead of the natural .balign 1024 place RESVEC here
- * respecting the final 1KB alignment.
- */
- .balign TEXT_SIZE
- /*
- * Instead of '.space 1024-TEXT_SIZE' place the RESVEC
- * block making sure the final alignment is correct.
- */
-tlb_miss:
- synco /* TAKum03020 (but probably a good idea anyway.) */
- putcon SP, KCR1
- movi reg_save_area, SP
- /* SP is guaranteed 32-byte aligned. */
- st.q SP, TLB_SAVED_R0 , r0
- st.q SP, TLB_SAVED_R1 , r1
- st.q SP, SAVED_R2 , r2
- st.q SP, SAVED_R3 , r3
- st.q SP, SAVED_R4 , r4
- st.q SP, SAVED_R5 , r5
- st.q SP, SAVED_R6 , r6
- st.q SP, SAVED_R18, r18
-
- /* Save R25 for safety; as/ld may want to use it to achieve the call to
- * the code in mm/tlbmiss.c */
- st.q SP, TLB_SAVED_R25, r25
- gettr tr0, r2
- gettr tr1, r3
- gettr tr2, r4
- gettr tr3, r5
- gettr tr4, r18
- st.q SP, SAVED_TR0 , r2
- st.q SP, TLB_SAVED_TR1 , r3
- st.q SP, TLB_SAVED_TR2 , r4
- st.q SP, TLB_SAVED_TR3 , r5
- st.q SP, TLB_SAVED_TR4 , r18
-
- pt do_fast_page_fault, tr0
- getcon SSR, r2
- getcon EXPEVT, r3
- getcon TEA, r4
- shlri r2, 30, r2
- andi r2, 1, r2 /* r2 = SSR.MD */
- blink tr0, LINK
-
- pt fixup_to_invoke_general_handler, tr1
-
- /* If the fast path handler fixed the fault, just drop through quickly
- to the restore code right away to return to the excepting context.
- */
- beqi/u r2, 0, tr1
-
-fast_tlb_miss_restore:
- ld.q SP, SAVED_TR0, r2
- ld.q SP, TLB_SAVED_TR1, r3
- ld.q SP, TLB_SAVED_TR2, r4
-
- ld.q SP, TLB_SAVED_TR3, r5
- ld.q SP, TLB_SAVED_TR4, r18
-
- ptabs r2, tr0
- ptabs r3, tr1
- ptabs r4, tr2
- ptabs r5, tr3
- ptabs r18, tr4
-
- ld.q SP, TLB_SAVED_R0, r0
- ld.q SP, TLB_SAVED_R1, r1
- ld.q SP, SAVED_R2, r2
- ld.q SP, SAVED_R3, r3
- ld.q SP, SAVED_R4, r4
- ld.q SP, SAVED_R5, r5
- ld.q SP, SAVED_R6, r6
- ld.q SP, SAVED_R18, r18
- ld.q SP, TLB_SAVED_R25, r25
-
- getcon KCR1, SP
- rte
- nop /* for safety, in case the code is run on sh5-101 cut1.x */
-
-fixup_to_invoke_general_handler:
-
- /* OK, new method. Restore stuff that's not expected to get saved into
- the 'first-level' reg save area, then just fall through to setting
- up the registers and calling the second-level handler. */
-
- /* 2nd level expects r2,3,4,5,6,18,tr0 to be saved. So we must restore
- r25,tr1-4 and save r6 to get into the right state. */
-
- ld.q SP, TLB_SAVED_TR1, r3
- ld.q SP, TLB_SAVED_TR2, r4
- ld.q SP, TLB_SAVED_TR3, r5
- ld.q SP, TLB_SAVED_TR4, r18
- ld.q SP, TLB_SAVED_R25, r25
-
- ld.q SP, TLB_SAVED_R0, r0
- ld.q SP, TLB_SAVED_R1, r1
-
- ptabs/u r3, tr1
- ptabs/u r4, tr2
- ptabs/u r5, tr3
- ptabs/u r18, tr4
-
- /* Set args for Non-debug, TLB miss class handler */
- getcon EXPEVT, r2
- movi ret_from_exception, r3
- ori r3, 1, r3
- movi EVENT_FAULT_TLB, r4
- or SP, ZERO, r5
- getcon KCR1, SP
- pta handle_exception, tr0
- blink tr0, ZERO
-
-/* NB TAKE GREAT CARE HERE TO ENSURE THAT THE INTERRUPT CODE
- DOES END UP AT VBR+0x600 */
- nop
- nop
- nop
- nop
- nop
- nop
-
- .balign 256
- /* VBR + 0x600 */
-
-interrupt:
- synco /* TAKum03020 (but probably a good idea anyway.) */
- /* Save original stack pointer into KCR1 */
- putcon SP, KCR1
-
- /* Save other original registers into reg_save_area */
- movi reg_save_area, SP
- st.q SP, SAVED_R2, r2
- st.q SP, SAVED_R3, r3
- st.q SP, SAVED_R4, r4
- st.q SP, SAVED_R5, r5
- st.q SP, SAVED_R6, r6
- st.q SP, SAVED_R18, r18
- gettr tr0, r3
- st.q SP, SAVED_TR0, r3
-
- /* Set args for interrupt class handler */
- getcon INTEVT, r2
- movi ret_from_irq, r3
- ori r3, 1, r3
- movi EVENT_INTERRUPT, r4
- or SP, ZERO, r5
- getcon KCR1, SP
- pta handle_exception, tr0
- blink tr0, ZERO
- .balign TEXT_SIZE /* let's waste the bare minimum */
-
-LVBR_block_end: /* Marker. Used for total checking */
-
- .balign 256
-LRESVEC_block:
- /* Panic handler. Called with MMU off. Possible causes/actions:
- * - Reset: Jump to program start.
- * - Single Step: Turn off Single Step & return.
- * - Others: Call panic handler, passing PC as arg.
- * (this may need to be extended...)
- */
-reset_or_panic:
- synco /* TAKum03020 (but probably a good idea anyway.) */
- putcon SP, DCR
- /* First save r0-1 and tr0, as we need to use these */
- movi resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
- st.q SP, 0, r0
- st.q SP, 8, r1
- gettr tr0, r0
- st.q SP, 32, r0
-
- /* Check cause */
- getcon EXPEVT, r0
- movi RESET_CAUSE, r1
- sub r1, r0, r1 /* r1=0 if reset */
- movi _stext-CONFIG_CACHED_MEMORY_OFFSET, r0
- ori r0, 1, r0
- ptabs r0, tr0
- beqi r1, 0, tr0 /* Jump to start address if reset */
-
- getcon EXPEVT, r0
- movi DEBUGSS_CAUSE, r1
- sub r1, r0, r1 /* r1=0 if single step */
- pta single_step_panic, tr0
- beqi r1, 0, tr0 /* jump if single step */
-
- /* Now jump to where we save the registers. */
- movi panic_stash_regs-CONFIG_CACHED_MEMORY_OFFSET, r1
- ptabs r1, tr0
- blink tr0, r63
-
-single_step_panic:
- /* We are in a handler with Single Step set. We need to resume the
- * handler, by turning on MMU & turning off Single Step. */
- getcon SSR, r0
- movi SR_MMU, r1
- or r0, r1, r0
- movi ~SR_SS, r1
- and r0, r1, r0
- putcon r0, SSR
- /* Restore EXPEVT, as the rte won't do this */
- getcon PEXPEVT, r0
- putcon r0, EXPEVT
- /* Restore regs */
- ld.q SP, 32, r0
- ptabs r0, tr0
- ld.q SP, 0, r0
- ld.q SP, 8, r1
- getcon DCR, SP
- synco
- rte
-
-
- .balign 256
-debug_exception:
- synco /* TAKum03020 (but probably a good idea anyway.) */
- /*
- * Single step/software_break_point first level handler.
- * Called with MMU off, so the first thing we do is enable it
- * by doing an rte with appropriate SSR.
- */
- putcon SP, DCR
- /* Save SSR & SPC, together with R0 & R1, as we need to use 2 regs. */
- movi resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
-
- /* With the MMU off, we are bypassing the cache, so purge any
- * data that will be made stale by the following stores.
- */
- ocbp SP, 0
- synco
-
- st.q SP, 0, r0
- st.q SP, 8, r1
- getcon SPC, r0
- st.q SP, 16, r0
- getcon SSR, r0
- st.q SP, 24, r0
-
- /* Enable MMU, block exceptions, set priv mode, disable single step */
- movi SR_MMU | SR_BL | SR_MD, r1
- or r0, r1, r0
- movi ~SR_SS, r1
- and r0, r1, r0
- putcon r0, SSR
- /* Force control to debug_exception_2 when rte is executed */
- movi debug_exeception_2, r0
- ori r0, 1, r0 /* force SHmedia, just in case */
- putcon r0, SPC
- getcon DCR, SP
- synco
- rte
-debug_exeception_2:
- /* Restore saved regs */
- putcon SP, KCR1
- movi resvec_save_area, SP
- ld.q SP, 24, r0
- putcon r0, SSR
- ld.q SP, 16, r0
- putcon r0, SPC
- ld.q SP, 0, r0
- ld.q SP, 8, r1
-
- /* Save other original registers into reg_save_area */
- movi reg_save_area, SP
- st.q SP, SAVED_R2, r2
- st.q SP, SAVED_R3, r3
- st.q SP, SAVED_R4, r4
- st.q SP, SAVED_R5, r5
- st.q SP, SAVED_R6, r6
- st.q SP, SAVED_R18, r18
- gettr tr0, r3
- st.q SP, SAVED_TR0, r3
-
- /* Set args for debug class handler */
- getcon EXPEVT, r2
- movi ret_from_exception, r3
- ori r3, 1, r3
- movi EVENT_DEBUG, r4
- or SP, ZERO, r5
- getcon KCR1, SP
- pta handle_exception, tr0
- blink tr0, ZERO
-
- .balign 256
-debug_interrupt:
- /* !!! WE COME HERE IN REAL MODE !!! */
- /* Hook-up debug interrupt to allow various debugging options to be
- * hooked into its handler. */
- /* Save original stack pointer into KCR1 */
- synco
- putcon SP, KCR1
- movi resvec_save_area-CONFIG_CACHED_MEMORY_OFFSET, SP
- ocbp SP, 0
- ocbp SP, 32
- synco
-
- /* Save other original registers into reg_save_area thru real addresses */
- st.q SP, SAVED_R2, r2
- st.q SP, SAVED_R3, r3
- st.q SP, SAVED_R4, r4
- st.q SP, SAVED_R5, r5
- st.q SP, SAVED_R6, r6
- st.q SP, SAVED_R18, r18
- gettr tr0, r3
- st.q SP, SAVED_TR0, r3
-
- /* move (spc,ssr)->(pspc,pssr). The rte will shift
- them back again, so that they look like the originals
- as far as the real handler code is concerned. */
- getcon spc, r6
- putcon r6, pspc
- getcon ssr, r6
- putcon r6, pssr
-
- ! construct useful SR for handle_exception
- movi 3, r6
- shlli r6, 30, r6
- getcon sr, r18
- or r18, r6, r6
- putcon r6, ssr
-
- ! SSR is now the current SR with the MD and MMU bits set
- ! i.e. the rte will switch back to priv mode and put
- ! the mmu back on
-
- ! construct spc
- movi handle_exception, r18
- ori r18, 1, r18 ! for safety (do we need this?)
- putcon r18, spc
-
- /* Set args for Non-debug, Not a TLB miss class handler */
-
- ! EXPEVT==0x80 is unused, so 'steal' this value to put the
- ! debug interrupt handler in the vectoring table
- movi 0x80, r2
- movi ret_from_exception, r3
- ori r3, 1, r3
- movi EVENT_FAULT_NOT_TLB, r4
-
- or SP, ZERO, r5
- movi CONFIG_CACHED_MEMORY_OFFSET, r6
- add r6, r5, r5
- getcon KCR1, SP
-
- synco ! for safety
- rte ! -> handle_exception, switch back to priv mode again
-
-LRESVEC_block_end: /* Marker. Unused. */
-
- .balign TEXT_SIZE
-
-/*
- * Second level handler for VBR-based exceptions. Pre-handler.
- * In common to all stack-frame sensitive handlers.
- *
- * Inputs:
- * (KCR0) Current [current task union]
- * (KCR1) Original SP
- * (r2) INTEVT/EXPEVT
- * (r3) appropriate return address
- * (r4) Event (0 = interrupt, 1 = TLB miss fault, 2 = Not TLB miss fault, 3=debug)
- * (r5) Pointer to reg_save_area
- * (SP) Original SP
- *
- * Available registers:
- * (r6)
- * (r18)
- * (tr0)
- *
- */
-handle_exception:
- /* Common 2nd level handler. */
-
- /* First thing we need an appropriate stack pointer */
- getcon SSR, r6
- shlri r6, 30, r6
- andi r6, 1, r6
- pta stack_ok, tr0
- bne r6, ZERO, tr0 /* Original stack pointer is fine */
-
- /* Set stack pointer for user fault */
- getcon KCR0, SP
- movi THREAD_SIZE, r6 /* Point to the end */
- add SP, r6, SP
-
-stack_ok:
-
-/* DEBUG : check for underflow/overflow of the kernel stack */
- pta no_underflow, tr0
- getcon KCR0, r6
- movi 1024, r18
- add r6, r18, r6
- bge SP, r6, tr0 ! ? below 1k from bottom of stack : danger zone
-
-/* Just panic to cause a crash. */
-bad_sp:
- ld.b r63, 0, r6
- nop
-
-no_underflow:
- pta bad_sp, tr0
- getcon kcr0, r6
- movi THREAD_SIZE, r18
- add r18, r6, r6
- bgt SP, r6, tr0 ! sp above the stack
-
- /* Make some room for the BASIC frame. */
- movi -(FRAME_SIZE), r6
- add SP, r6, SP
-
-/* Could do this with no stalling if we had another spare register, but the
- code below will be OK. */
- ld.q r5, SAVED_R2, r6
- ld.q r5, SAVED_R3, r18
- st.q SP, FRAME_R(2), r6
- ld.q r5, SAVED_R4, r6
- st.q SP, FRAME_R(3), r18
- ld.q r5, SAVED_R5, r18
- st.q SP, FRAME_R(4), r6
- ld.q r5, SAVED_R6, r6
- st.q SP, FRAME_R(5), r18
- ld.q r5, SAVED_R18, r18
- st.q SP, FRAME_R(6), r6
- ld.q r5, SAVED_TR0, r6
- st.q SP, FRAME_R(18), r18
- st.q SP, FRAME_T(0), r6
-
- /* Keep old SP around */
- getcon KCR1, r6
-
- /* Save the rest of the general purpose registers */
- st.q SP, FRAME_R(0), r0
- st.q SP, FRAME_R(1), r1
- st.q SP, FRAME_R(7), r7
- st.q SP, FRAME_R(8), r8
- st.q SP, FRAME_R(9), r9
- st.q SP, FRAME_R(10), r10
- st.q SP, FRAME_R(11), r11
- st.q SP, FRAME_R(12), r12
- st.q SP, FRAME_R(13), r13
- st.q SP, FRAME_R(14), r14
-
- /* SP is somewhere else */
- st.q SP, FRAME_R(15), r6
-
- st.q SP, FRAME_R(16), r16
- st.q SP, FRAME_R(17), r17
- /* r18 is saved earlier. */
- st.q SP, FRAME_R(19), r19
- st.q SP, FRAME_R(20), r20
- st.q SP, FRAME_R(21), r21
- st.q SP, FRAME_R(22), r22
- st.q SP, FRAME_R(23), r23
- st.q SP, FRAME_R(24), r24
- st.q SP, FRAME_R(25), r25
- st.q SP, FRAME_R(26), r26
- st.q SP, FRAME_R(27), r27
- st.q SP, FRAME_R(28), r28
- st.q SP, FRAME_R(29), r29
- st.q SP, FRAME_R(30), r30
- st.q SP, FRAME_R(31), r31
- st.q SP, FRAME_R(32), r32
- st.q SP, FRAME_R(33), r33
- st.q SP, FRAME_R(34), r34
- st.q SP, FRAME_R(35), r35
- st.q SP, FRAME_R(36), r36
- st.q SP, FRAME_R(37), r37
- st.q SP, FRAME_R(38), r38
- st.q SP, FRAME_R(39), r39
- st.q SP, FRAME_R(40), r40
- st.q SP, FRAME_R(41), r41
- st.q SP, FRAME_R(42), r42
- st.q SP, FRAME_R(43), r43
- st.q SP, FRAME_R(44), r44
- st.q SP, FRAME_R(45), r45
- st.q SP, FRAME_R(46), r46
- st.q SP, FRAME_R(47), r47
- st.q SP, FRAME_R(48), r48
- st.q SP, FRAME_R(49), r49
- st.q SP, FRAME_R(50), r50
- st.q SP, FRAME_R(51), r51
- st.q SP, FRAME_R(52), r52
- st.q SP, FRAME_R(53), r53
- st.q SP, FRAME_R(54), r54
- st.q SP, FRAME_R(55), r55
- st.q SP, FRAME_R(56), r56
- st.q SP, FRAME_R(57), r57
- st.q SP, FRAME_R(58), r58
- st.q SP, FRAME_R(59), r59
- st.q SP, FRAME_R(60), r60
- st.q SP, FRAME_R(61), r61
- st.q SP, FRAME_R(62), r62
-
- /*
- * Save the S* registers.
- */
- getcon SSR, r61
- st.q SP, FRAME_S(FSSR), r61
- getcon SPC, r62
- st.q SP, FRAME_S(FSPC), r62
- movi -1, r62 /* Reset syscall_nr */
- st.q SP, FRAME_S(FSYSCALL_ID), r62
-
- /* Save the rest of the target registers */
- gettr tr1, r6
- st.q SP, FRAME_T(1), r6
- gettr tr2, r6
- st.q SP, FRAME_T(2), r6
- gettr tr3, r6
- st.q SP, FRAME_T(3), r6
- gettr tr4, r6
- st.q SP, FRAME_T(4), r6
- gettr tr5, r6
- st.q SP, FRAME_T(5), r6
- gettr tr6, r6
- st.q SP, FRAME_T(6), r6
- gettr tr7, r6
- st.q SP, FRAME_T(7), r6
-
- ! setup FP so that unwinder can wind back through nested kernel mode
- ! exceptions
- add SP, ZERO, r14
-
-#ifdef CONFIG_POOR_MANS_STRACE
- /* We've pushed all the registers now, so only r2-r4 hold anything
- * useful. Move them into callee save registers */
- or r2, ZERO, r28
- or r3, ZERO, r29
- or r4, ZERO, r30
-
- /* Preserve r2 as the event code */
- movi evt_debug, r3
- ori r3, 1, r3
- ptabs r3, tr0
-
- or SP, ZERO, r6
- getcon TRA, r5
- blink tr0, LINK
-
- or r28, ZERO, r2
- or r29, ZERO, r3
- or r30, ZERO, r4
-#endif
-
- /* For syscall and debug race condition, get TRA now */
- getcon TRA, r5
-
- /* We are in a safe position to turn SR.BL off, but set IMASK=0xf
- * Also set FD, to catch FPU usage in the kernel.
- *
- * benedict.gaster@superh.com 29/07/2002
- *
- * On all SH5-101 revisions it is unsafe to raise the IMASK and at the
- * same time change BL from 1->0, as any pending interrupt of a level
- * higher than he previous value of IMASK will leak through and be
- * taken unexpectedly.
- *
- * To avoid this we raise the IMASK and then issue another PUTCON to
- * enable interrupts.
- */
- getcon SR, r6
- movi SR_IMASK | SR_FD, r7
- or r6, r7, r6
- putcon r6, SR
- movi SR_UNBLOCK_EXC, r7
- and r6, r7, r6
- putcon r6, SR
-
-
- /* Now call the appropriate 3rd level handler */
- or r3, ZERO, LINK
- movi trap_jtable, r3
- shlri r2, 3, r2
- ldx.l r2, r3, r3
- shlri r2, 2, r2
- ptabs r3, tr0
- or SP, ZERO, r3
- blink tr0, ZERO
-
-/*
- * Second level handler for VBR-based exceptions. Post-handlers.
- *
- * Post-handlers for interrupts (ret_from_irq), exceptions
- * (ret_from_exception) and common reentrance doors (restore_all
- * to get back to the original context, ret_from_syscall loop to
- * check kernel exiting).
- *
- * ret_with_reschedule and work_notifysig are an inner lables of
- * the ret_from_syscall loop.
- *
- * In common to all stack-frame sensitive handlers.
- *
- * Inputs:
- * (SP) struct pt_regs *, original register's frame pointer (basic)
- *
- */
- .global ret_from_irq
-ret_from_irq:
-#ifdef CONFIG_POOR_MANS_STRACE
- pta evt_debug_ret_from_irq, tr0
- ori SP, 0, r2
- blink tr0, LINK
-#endif
- ld.q SP, FRAME_S(FSSR), r6
- shlri r6, 30, r6
- andi r6, 1, r6
- pta resume_kernel, tr0
- bne r6, ZERO, tr0 /* no further checks */
- STI()
- pta ret_with_reschedule, tr0
- blink tr0, ZERO /* Do not check softirqs */
-
- .global ret_from_exception
-ret_from_exception:
- preempt_stop()
-
-#ifdef CONFIG_POOR_MANS_STRACE
- pta evt_debug_ret_from_exc, tr0
- ori SP, 0, r2
- blink tr0, LINK
-#endif
-
- ld.q SP, FRAME_S(FSSR), r6
- shlri r6, 30, r6
- andi r6, 1, r6
- pta resume_kernel, tr0
- bne r6, ZERO, tr0 /* no further checks */
-
- /* Check softirqs */
-
-#ifdef CONFIG_PREEMPT
- pta ret_from_syscall, tr0
- blink tr0, ZERO
-
-resume_kernel:
- pta restore_all, tr0
-
- getcon KCR0, r6
- ld.l r6, TI_PRE_COUNT, r7
- beq/u r7, ZERO, tr0
-
-need_resched:
- ld.l r6, TI_FLAGS, r7
- movi (1 << TIF_NEED_RESCHED), r8
- and r8, r7, r8
- bne r8, ZERO, tr0
-
- getcon SR, r7
- andi r7, 0xf0, r7
- bne r7, ZERO, tr0
-
- movi ((PREEMPT_ACTIVE >> 16) & 65535), r8
- shori (PREEMPT_ACTIVE & 65535), r8
- st.l r6, TI_PRE_COUNT, r8
-
- STI()
- movi schedule, r7
- ori r7, 1, r7
- ptabs r7, tr1
- blink tr1, LINK
-
- st.l r6, TI_PRE_COUNT, ZERO
- CLI()
-
- pta need_resched, tr1
- blink tr1, ZERO
-#endif
-
- .global ret_from_syscall
-ret_from_syscall:
-
-ret_with_reschedule:
- getcon KCR0, r6 ! r6 contains current_thread_info
- ld.l r6, TI_FLAGS, r7 ! r7 contains current_thread_info->flags
-
- ! FIXME:!!!
- ! no handling of TIF_SYSCALL_TRACE yet!!
-
- movi _TIF_NEED_RESCHED, r8
- and r8, r7, r8
- pta work_resched, tr0
- bne r8, ZERO, tr0
-
- pta restore_all, tr1
-
- movi (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK), r8
- and r8, r7, r8
- pta work_notifysig, tr0
- bne r8, ZERO, tr0
-
- blink tr1, ZERO
-
-work_resched:
- pta ret_from_syscall, tr0
- gettr tr0, LINK
- movi schedule, r6
- ptabs r6, tr0
- blink tr0, ZERO /* Call schedule(), return on top */
-
-work_notifysig:
- gettr tr1, LINK
-
- movi do_signal, r6
- ptabs r6, tr0
- or SP, ZERO, r2
- or ZERO, ZERO, r3
- blink tr0, LINK /* Call do_signal(regs, 0), return here */
-
-restore_all:
- /* Do prefetches */
-
- ld.q SP, FRAME_T(0), r6
- ld.q SP, FRAME_T(1), r7
- ld.q SP, FRAME_T(2), r8
- ld.q SP, FRAME_T(3), r9
- ptabs r6, tr0
- ptabs r7, tr1
- ptabs r8, tr2
- ptabs r9, tr3
- ld.q SP, FRAME_T(4), r6
- ld.q SP, FRAME_T(5), r7
- ld.q SP, FRAME_T(6), r8
- ld.q SP, FRAME_T(7), r9
- ptabs r6, tr4
- ptabs r7, tr5
- ptabs r8, tr6
- ptabs r9, tr7
-
- ld.q SP, FRAME_R(0), r0
- ld.q SP, FRAME_R(1), r1
- ld.q SP, FRAME_R(2), r2
- ld.q SP, FRAME_R(3), r3
- ld.q SP, FRAME_R(4), r4
- ld.q SP, FRAME_R(5), r5
- ld.q SP, FRAME_R(6), r6
- ld.q SP, FRAME_R(7), r7
- ld.q SP, FRAME_R(8), r8
- ld.q SP, FRAME_R(9), r9
- ld.q SP, FRAME_R(10), r10
- ld.q SP, FRAME_R(11), r11
- ld.q SP, FRAME_R(12), r12
- ld.q SP, FRAME_R(13), r13
- ld.q SP, FRAME_R(14), r14
-
- ld.q SP, FRAME_R(16), r16
- ld.q SP, FRAME_R(17), r17
- ld.q SP, FRAME_R(18), r18
- ld.q SP, FRAME_R(19), r19
- ld.q SP, FRAME_R(20), r20
- ld.q SP, FRAME_R(21), r21
- ld.q SP, FRAME_R(22), r22
- ld.q SP, FRAME_R(23), r23
- ld.q SP, FRAME_R(24), r24
- ld.q SP, FRAME_R(25), r25
- ld.q SP, FRAME_R(26), r26
- ld.q SP, FRAME_R(27), r27
- ld.q SP, FRAME_R(28), r28
- ld.q SP, FRAME_R(29), r29
- ld.q SP, FRAME_R(30), r30
- ld.q SP, FRAME_R(31), r31
- ld.q SP, FRAME_R(32), r32
- ld.q SP, FRAME_R(33), r33
- ld.q SP, FRAME_R(34), r34
- ld.q SP, FRAME_R(35), r35
- ld.q SP, FRAME_R(36), r36
- ld.q SP, FRAME_R(37), r37
- ld.q SP, FRAME_R(38), r38
- ld.q SP, FRAME_R(39), r39
- ld.q SP, FRAME_R(40), r40
- ld.q SP, FRAME_R(41), r41
- ld.q SP, FRAME_R(42), r42
- ld.q SP, FRAME_R(43), r43
- ld.q SP, FRAME_R(44), r44
- ld.q SP, FRAME_R(45), r45
- ld.q SP, FRAME_R(46), r46
- ld.q SP, FRAME_R(47), r47
- ld.q SP, FRAME_R(48), r48
- ld.q SP, FRAME_R(49), r49
- ld.q SP, FRAME_R(50), r50
- ld.q SP, FRAME_R(51), r51
- ld.q SP, FRAME_R(52), r52
- ld.q SP, FRAME_R(53), r53
- ld.q SP, FRAME_R(54), r54
- ld.q SP, FRAME_R(55), r55
- ld.q SP, FRAME_R(56), r56
- ld.q SP, FRAME_R(57), r57
- ld.q SP, FRAME_R(58), r58
-
- getcon SR, r59
- movi SR_BLOCK_EXC, r60
- or r59, r60, r59
- putcon r59, SR /* SR.BL = 1, keep nesting out */
- ld.q SP, FRAME_S(FSSR), r61
- ld.q SP, FRAME_S(FSPC), r62
- movi SR_ASID_MASK, r60
- and r59, r60, r59
- andc r61, r60, r61 /* Clear out older ASID */
- or r59, r61, r61 /* Retain current ASID */
- putcon r61, SSR
- putcon r62, SPC
-
- /* Ignore FSYSCALL_ID */
-
- ld.q SP, FRAME_R(59), r59
- ld.q SP, FRAME_R(60), r60
- ld.q SP, FRAME_R(61), r61
- ld.q SP, FRAME_R(62), r62
-
- /* Last touch */
- ld.q SP, FRAME_R(15), SP
- rte
- nop
-
-/*
- * Third level handlers for VBR-based exceptions. Adapting args to
- * and/or deflecting to fourth level handlers.
- *
- * Fourth level handlers interface.
- * Most are C-coded handlers directly pointed by the trap_jtable.
- * (Third = Fourth level)
- * Inputs:
- * (r2) fault/interrupt code, entry number (e.g. NMI = 14,
- * IRL0-3 (0000) = 16, RTLBMISS = 2, SYSCALL = 11, etc ...)
- * (r3) struct pt_regs *, original register's frame pointer
- * (r4) Event (0 = interrupt, 1 = TLB miss fault, 2 = Not TLB miss fault)
- * (r5) TRA control register (for syscall/debug benefit only)
- * (LINK) return address
- * (SP) = r3
- *
- * Kernel TLB fault handlers will get a slightly different interface.
- * (r2) struct pt_regs *, original register's frame pointer
- * (r3) writeaccess, whether it's a store fault as opposed to load fault
- * (r4) execaccess, whether it's a ITLB fault as opposed to DTLB fault
- * (r5) Effective Address of fault
- * (LINK) return address
- * (SP) = r2
- *
- * fpu_error_or_IRQ? is a helper to deflect to the right cause.
- *
- */
-tlb_miss_load:
- or SP, ZERO, r2
- or ZERO, ZERO, r3 /* Read */
- or ZERO, ZERO, r4 /* Data */
- getcon TEA, r5
- pta call_do_page_fault, tr0
- beq ZERO, ZERO, tr0
-
-tlb_miss_store:
- or SP, ZERO, r2
- movi 1, r3 /* Write */
- or ZERO, ZERO, r4 /* Data */
- getcon TEA, r5
- pta call_do_page_fault, tr0
- beq ZERO, ZERO, tr0
-
-itlb_miss_or_IRQ:
- pta its_IRQ, tr0
- beqi/u r4, EVENT_INTERRUPT, tr0
- or SP, ZERO, r2
- or ZERO, ZERO, r3 /* Read */
- movi 1, r4 /* Text */
- getcon TEA, r5
- /* Fall through */
-
-call_do_page_fault:
- movi do_page_fault, r6
- ptabs r6, tr0
- blink tr0, ZERO
-
-fpu_error_or_IRQA:
- pta its_IRQ, tr0
- beqi/l r4, EVENT_INTERRUPT, tr0
-#ifdef CONFIG_SH_FPU
- movi do_fpu_state_restore, r6
-#else
- movi do_exception_error, r6
-#endif
- ptabs r6, tr0
- blink tr0, ZERO
-
-fpu_error_or_IRQB:
- pta its_IRQ, tr0
- beqi/l r4, EVENT_INTERRUPT, tr0
-#ifdef CONFIG_SH_FPU
- movi do_fpu_state_restore, r6
-#else
- movi do_exception_error, r6
-#endif
- ptabs r6, tr0
- blink tr0, ZERO
-
-its_IRQ:
- movi do_IRQ, r6
- ptabs r6, tr0
- blink tr0, ZERO
-
-/*
- * system_call/unknown_trap third level handler:
- *
- * Inputs:
- * (r2) fault/interrupt code, entry number (TRAP = 11)
- * (r3) struct pt_regs *, original register's frame pointer
- * (r4) Not used. Event (0=interrupt, 1=TLB miss fault, 2=Not TLB miss fault)
- * (r5) TRA Control Reg (0x00xyzzzz: x=1 SYSCALL, y = #args, z=nr)
- * (SP) = r3
- * (LINK) return address: ret_from_exception
- * (*r3) Syscall parms: SC#, arg0, arg1, ..., arg5 in order (Saved r2/r7)
- *
- * Outputs:
- * (*r3) Syscall reply (Saved r2)
- * (LINK) In case of syscall only it can be scrapped.
- * Common second level post handler will be ret_from_syscall.
- * Common (non-trace) exit point to that is syscall_ret (saving
- * result to r2). Common bad exit point is syscall_bad (returning
- * ENOSYS then saved to r2).
- *
- */
-
-unknown_trap:
- /* Unknown Trap or User Trace */
- movi do_unknown_trapa, r6
- ptabs r6, tr0
- ld.q r3, FRAME_R(9), r2 /* r2 = #arg << 16 | syscall # */
- andi r2, 0x1ff, r2 /* r2 = syscall # */
- blink tr0, LINK
-
- pta syscall_ret, tr0
- blink tr0, ZERO
-
- /* New syscall implementation*/
-system_call:
- pta unknown_trap, tr0
- or r5, ZERO, r4 /* TRA (=r5) -> r4 */
- shlri r4, 20, r4
- bnei r4, 1, tr0 /* unknown_trap if not 0x1yzzzz */
-
- /* It's a system call */
- st.q r3, FRAME_S(FSYSCALL_ID), r5 /* ID (0x1yzzzz) -> stack */
- andi r5, 0x1ff, r5 /* syscall # -> r5 */
-
- STI()
-
- pta syscall_allowed, tr0
- movi NR_syscalls - 1, r4 /* Last valid */
- bgeu/l r4, r5, tr0
-
-syscall_bad:
- /* Return ENOSYS ! */
- movi -(ENOSYS), r2 /* Fall-through */
-
- .global syscall_ret
-syscall_ret:
- st.q SP, FRAME_R(9), r2 /* Expecting SP back to BASIC frame */
-
-#ifdef CONFIG_POOR_MANS_STRACE
- /* nothing useful in registers at this point */
-
- movi evt_debug2, r5
- ori r5, 1, r5
- ptabs r5, tr0
- ld.q SP, FRAME_R(9), r2
- or SP, ZERO, r3
- blink tr0, LINK
-#endif
-
- ld.q SP, FRAME_S(FSPC), r2
- addi r2, 4, r2 /* Move PC, being pre-execution event */
- st.q SP, FRAME_S(FSPC), r2
- pta ret_from_syscall, tr0
- blink tr0, ZERO
-
-
-/* A different return path for ret_from_fork, because we now need
- * to call schedule_tail with the later kernels. Because prev is
- * loaded into r2 by switch_to() means we can just call it straight away
- */
-
-.global ret_from_fork
-ret_from_fork:
-
- movi schedule_tail,r5
- ori r5, 1, r5
- ptabs r5, tr0
- blink tr0, LINK
-
-#ifdef CONFIG_POOR_MANS_STRACE
- /* nothing useful in registers at this point */
-
- movi evt_debug2, r5
- ori r5, 1, r5
- ptabs r5, tr0
- ld.q SP, FRAME_R(9), r2
- or SP, ZERO, r3
- blink tr0, LINK
-#endif
-
- ld.q SP, FRAME_S(FSPC), r2
- addi r2, 4, r2 /* Move PC, being pre-execution event */
- st.q SP, FRAME_S(FSPC), r2
- pta ret_from_syscall, tr0
- blink tr0, ZERO
-
-
-
-syscall_allowed:
- /* Use LINK to deflect the exit point, default is syscall_ret */
- pta syscall_ret, tr0
- gettr tr0, LINK
- pta syscall_notrace, tr0
-
- getcon KCR0, r2
- ld.l r2, TI_FLAGS, r4
- movi (1 << TIF_SYSCALL_TRACE), r6
- and r6, r4, r6
- beq/l r6, ZERO, tr0
-
- /* Trace it by calling syscall_trace before and after */
- movi syscall_trace, r4
- ptabs r4, tr0
- blink tr0, LINK
- /* Reload syscall number as r5 is trashed by syscall_trace */
- ld.q SP, FRAME_S(FSYSCALL_ID), r5
- andi r5, 0x1ff, r5
-
- pta syscall_ret_trace, tr0
- gettr tr0, LINK
-
-syscall_notrace:
- /* Now point to the appropriate 4th level syscall handler */
- movi sys_call_table, r4
- shlli r5, 2, r5
- ldx.l r4, r5, r5
- ptabs r5, tr0
-
- /* Prepare original args */
- ld.q SP, FRAME_R(2), r2
- ld.q SP, FRAME_R(3), r3
- ld.q SP, FRAME_R(4), r4
- ld.q SP, FRAME_R(5), r5
- ld.q SP, FRAME_R(6), r6
- ld.q SP, FRAME_R(7), r7
-
- /* And now the trick for those syscalls requiring regs * ! */
- or SP, ZERO, r8
-
- /* Call it */
- blink tr0, ZERO /* LINK is already properly set */
-
-syscall_ret_trace:
- /* We get back here only if under trace */
- st.q SP, FRAME_R(9), r2 /* Save return value */
-
- movi syscall_trace, LINK
- ptabs LINK, tr0
- blink tr0, LINK
-
- /* This needs to be done after any syscall tracing */
- ld.q SP, FRAME_S(FSPC), r2
- addi r2, 4, r2 /* Move PC, being pre-execution event */
- st.q SP, FRAME_S(FSPC), r2
-
- pta ret_from_syscall, tr0
- blink tr0, ZERO /* Resume normal return sequence */
-
-/*
- * --- Switch to running under a particular ASID and return the previous ASID value
- * --- The caller is assumed to have done a cli before calling this.
- *
- * Input r2 : new ASID
- * Output r2 : old ASID
- */
-
- .global switch_and_save_asid
-switch_and_save_asid:
- getcon sr, r0
- movi 255, r4
- shlli r4, 16, r4 /* r4 = mask to select ASID */
- and r0, r4, r3 /* r3 = shifted old ASID */
- andi r2, 255, r2 /* mask down new ASID */
- shlli r2, 16, r2 /* align new ASID against SR.ASID */
- andc r0, r4, r0 /* efface old ASID from SR */
- or r0, r2, r0 /* insert the new ASID */
- putcon r0, ssr
- movi 1f, r0
- putcon r0, spc
- rte
- nop
-1:
- ptabs LINK, tr0
- shlri r3, 16, r2 /* r2 = old ASID */
- blink tr0, r63
-
- .global route_to_panic_handler
-route_to_panic_handler:
- /* Switch to real mode, goto panic_handler, don't return. Useful for
- last-chance debugging, e.g. if no output wants to go to the console.
- */
-
- movi panic_handler - CONFIG_CACHED_MEMORY_OFFSET, r1
- ptabs r1, tr0
- pta 1f, tr1
- gettr tr1, r0
- putcon r0, spc
- getcon sr, r0
- movi 1, r1
- shlli r1, 31, r1
- andc r0, r1, r0
- putcon r0, ssr
- rte
- nop
-1: /* Now in real mode */
- blink tr0, r63
- nop
-
- .global peek_real_address_q
-peek_real_address_q:
- /* Two args:
- r2 : real mode address to peek
- r2(out) : result quadword
-
- This is provided as a cheapskate way of manipulating device
- registers for debugging (to avoid the need to onchip_remap the debug
- module, and to avoid the need to onchip_remap the watchpoint
- controller in a way that identity maps sufficient bits to avoid the
- SH5-101 cut2 silicon defect).
-
- This code is not performance critical
- */
-
- add.l r2, r63, r2 /* sign extend address */
- getcon sr, r0 /* r0 = saved original SR */
- movi 1, r1
- shlli r1, 28, r1
- or r0, r1, r1 /* r0 with block bit set */
- putcon r1, sr /* now in critical section */
- movi 1, r36
- shlli r36, 31, r36
- andc r1, r36, r1 /* turn sr.mmu off in real mode section */
-
- putcon r1, ssr
- movi .peek0 - CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target address */
- movi 1f, r37 /* virtual mode return addr */
- putcon r36, spc
-
- synco
- rte
- nop
-
-.peek0: /* come here in real mode, don't touch caches!!
- still in critical section (sr.bl==1) */
- putcon r0, ssr
- putcon r37, spc
- /* Here's the actual peek. If the address is bad, all bets are now off
- * what will happen (handlers invoked in real-mode = bad news) */
- ld.q r2, 0, r2
- synco
- rte /* Back to virtual mode */
- nop
-
-1:
- ptabs LINK, tr0
- blink tr0, r63
-
- .global poke_real_address_q
-poke_real_address_q:
- /* Two args:
- r2 : real mode address to poke
- r3 : quadword value to write.
-
- This is provided as a cheapskate way of manipulating device
- registers for debugging (to avoid the need to onchip_remap the debug
- module, and to avoid the need to onchip_remap the watchpoint
- controller in a way that identity maps sufficient bits to avoid the
- SH5-101 cut2 silicon defect).
-
- This code is not performance critical
- */
-
- add.l r2, r63, r2 /* sign extend address */
- getcon sr, r0 /* r0 = saved original SR */
- movi 1, r1
- shlli r1, 28, r1
- or r0, r1, r1 /* r0 with block bit set */
- putcon r1, sr /* now in critical section */
- movi 1, r36
- shlli r36, 31, r36
- andc r1, r36, r1 /* turn sr.mmu off in real mode section */
-
- putcon r1, ssr
- movi .poke0-CONFIG_CACHED_MEMORY_OFFSET, r36 /* real mode target address */
- movi 1f, r37 /* virtual mode return addr */
- putcon r36, spc
-
- synco
- rte
- nop
-
-.poke0: /* come here in real mode, don't touch caches!!
- still in critical section (sr.bl==1) */
- putcon r0, ssr
- putcon r37, spc
- /* Here's the actual poke. If the address is bad, all bets are now off
- * what will happen (handlers invoked in real-mode = bad news) */
- st.q r2, 0, r3
- synco
- rte /* Back to virtual mode */
- nop
-
-1:
- ptabs LINK, tr0
- blink tr0, r63
-
-/*
- * --- User Access Handling Section
- */
-
-/*
- * User Access support. It all moved to non inlined Assembler
- * functions in here.
- *
- * __kernel_size_t __copy_user(void *__to, const void *__from,
- * __kernel_size_t __n)
- *
- * Inputs:
- * (r2) target address
- * (r3) source address
- * (r4) size in bytes
- *
- * Ouputs:
- * (*r2) target data
- * (r2) non-copied bytes
- *
- * If a fault occurs on the user pointer, bail out early and return the
- * number of bytes not copied in r2.
- * Strategy : for large blocks, call a real memcpy function which can
- * move >1 byte at a time using unaligned ld/st instructions, and can
- * manipulate the cache using prefetch + alloco to improve the speed
- * further. If a fault occurs in that function, just revert to the
- * byte-by-byte approach used for small blocks; this is rare so the
- * performance hit for that case does not matter.
- *
- * For small blocks it's not worth the overhead of setting up and calling
- * the memcpy routine; do the copy a byte at a time.
- *
- */
- .global __copy_user
-__copy_user:
- pta __copy_user_byte_by_byte, tr1
- movi 16, r0 ! this value is a best guess, should tune it by benchmarking
- bge/u r0, r4, tr1
- pta copy_user_memcpy, tr0
- addi SP, -32, SP
- /* Save arguments in case we have to fix-up unhandled page fault */
- st.q SP, 0, r2
- st.q SP, 8, r3
- st.q SP, 16, r4
- st.q SP, 24, r35 ! r35 is callee-save
- /* Save LINK in a register to reduce RTS time later (otherwise
- ld SP,*,LINK;ptabs LINK;trn;blink trn,r63 becomes a critical path) */
- ori LINK, 0, r35
- blink tr0, LINK
-
- /* Copy completed normally if we get back here */
- ptabs r35, tr0
- ld.q SP, 24, r35
- /* don't restore r2-r4, pointless */
- /* set result=r2 to zero as the copy must have succeeded. */
- or r63, r63, r2
- addi SP, 32, SP
- blink tr0, r63 ! RTS
-
- .global __copy_user_fixup
-__copy_user_fixup:
- /* Restore stack frame */
- ori r35, 0, LINK
- ld.q SP, 24, r35
- ld.q SP, 16, r4
- ld.q SP, 8, r3
- ld.q SP, 0, r2
- addi SP, 32, SP
- /* Fall through to original code, in the 'same' state we entered with */
-
-/* The slow byte-by-byte method is used if the fast copy traps due to a bad
- user address. In that rare case, the speed drop can be tolerated. */
-__copy_user_byte_by_byte:
- pta ___copy_user_exit, tr1
- pta ___copy_user1, tr0
- beq/u r4, r63, tr1 /* early exit for zero length copy */
- sub r2, r3, r0
- addi r0, -1, r0
-
-___copy_user1:
- ld.b r3, 0, r5 /* Fault address 1 */
-
- /* Could rewrite this to use just 1 add, but the second comes 'free'
- due to load latency */
- addi r3, 1, r3
- addi r4, -1, r4 /* No real fixup required */
-___copy_user2:
- stx.b r3, r0, r5 /* Fault address 2 */
- bne r4, ZERO, tr0
-
-___copy_user_exit:
- or r4, ZERO, r2
- ptabs LINK, tr0
- blink tr0, ZERO
-
-/*
- * __kernel_size_t __clear_user(void *addr, __kernel_size_t size)
- *
- * Inputs:
- * (r2) target address
- * (r3) size in bytes
- *
- * Ouputs:
- * (*r2) zero-ed target data
- * (r2) non-zero-ed bytes
- */
- .global __clear_user
-__clear_user:
- pta ___clear_user_exit, tr1
- pta ___clear_user1, tr0
- beq/u r3, r63, tr1
-
-___clear_user1:
- st.b r2, 0, ZERO /* Fault address */
- addi r2, 1, r2
- addi r3, -1, r3 /* No real fixup required */
- bne r3, ZERO, tr0
-
-___clear_user_exit:
- or r3, ZERO, r2
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
-/*
- * int __strncpy_from_user(unsigned long __dest, unsigned long __src,
- * int __count)
- *
- * Inputs:
- * (r2) target address
- * (r3) source address
- * (r4) maximum size in bytes
- *
- * Ouputs:
- * (*r2) copied data
- * (r2) -EFAULT (in case of faulting)
- * copied data (otherwise)
- */
- .global __strncpy_from_user
-__strncpy_from_user:
- pta ___strncpy_from_user1, tr0
- pta ___strncpy_from_user_done, tr1
- or r4, ZERO, r5 /* r5 = original count */
- beq/u r4, r63, tr1 /* early exit if r4==0 */
- movi -(EFAULT), r6 /* r6 = reply, no real fixup */
- or ZERO, ZERO, r7 /* r7 = data, clear top byte of data */
-
-___strncpy_from_user1:
- ld.b r3, 0, r7 /* Fault address: only in reading */
- st.b r2, 0, r7
- addi r2, 1, r2
- addi r3, 1, r3
- beq/u ZERO, r7, tr1
- addi r4, -1, r4 /* return real number of copied bytes */
- bne/l ZERO, r4, tr0
-
-___strncpy_from_user_done:
- sub r5, r4, r6 /* If done, return copied */
-
-___strncpy_from_user_exit:
- or r6, ZERO, r2
- ptabs LINK, tr0
- blink tr0, ZERO
-
-/*
- * extern long __strnlen_user(const char *__s, long __n)
- *
- * Inputs:
- * (r2) source address
- * (r3) source size in bytes
- *
- * Ouputs:
- * (r2) -EFAULT (in case of faulting)
- * string length (otherwise)
- */
- .global __strnlen_user
-__strnlen_user:
- pta ___strnlen_user_set_reply, tr0
- pta ___strnlen_user1, tr1
- or ZERO, ZERO, r5 /* r5 = counter */
- movi -(EFAULT), r6 /* r6 = reply, no real fixup */
- or ZERO, ZERO, r7 /* r7 = data, clear top byte of data */
- beq r3, ZERO, tr0
-
-___strnlen_user1:
- ldx.b r2, r5, r7 /* Fault address: only in reading */
- addi r3, -1, r3 /* No real fixup */
- addi r5, 1, r5
- beq r3, ZERO, tr0
- bne r7, ZERO, tr1
-! The line below used to be active. This meant led to a junk byte lying between each pair
-! of entries in the argv & envp structures in memory. Whilst the program saw the right data
-! via the argv and envp arguments to main, it meant the 'flat' representation visible through
-! /proc/$pid/cmdline was corrupt, causing trouble with ps, for example.
-! addi r5, 1, r5 /* Include '\0' */
-
-___strnlen_user_set_reply:
- or r5, ZERO, r6 /* If done, return counter */
-
-___strnlen_user_exit:
- or r6, ZERO, r2
- ptabs LINK, tr0
- blink tr0, ZERO
-
-/*
- * extern long __get_user_asm_?(void *val, long addr)
- *
- * Inputs:
- * (r2) dest address
- * (r3) source address (in User Space)
- *
- * Ouputs:
- * (r2) -EFAULT (faulting)
- * 0 (not faulting)
- */
- .global __get_user_asm_b
-__get_user_asm_b:
- or r2, ZERO, r4
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___get_user_asm_b1:
- ld.b r3, 0, r5 /* r5 = data */
- st.b r4, 0, r5
- or ZERO, ZERO, r2
-
-___get_user_asm_b_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __get_user_asm_w
-__get_user_asm_w:
- or r2, ZERO, r4
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___get_user_asm_w1:
- ld.w r3, 0, r5 /* r5 = data */
- st.w r4, 0, r5
- or ZERO, ZERO, r2
-
-___get_user_asm_w_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __get_user_asm_l
-__get_user_asm_l:
- or r2, ZERO, r4
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___get_user_asm_l1:
- ld.l r3, 0, r5 /* r5 = data */
- st.l r4, 0, r5
- or ZERO, ZERO, r2
-
-___get_user_asm_l_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __get_user_asm_q
-__get_user_asm_q:
- or r2, ZERO, r4
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___get_user_asm_q1:
- ld.q r3, 0, r5 /* r5 = data */
- st.q r4, 0, r5
- or ZERO, ZERO, r2
-
-___get_user_asm_q_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-/*
- * extern long __put_user_asm_?(void *pval, long addr)
- *
- * Inputs:
- * (r2) kernel pointer to value
- * (r3) dest address (in User Space)
- *
- * Ouputs:
- * (r2) -EFAULT (faulting)
- * 0 (not faulting)
- */
- .global __put_user_asm_b
-__put_user_asm_b:
- ld.b r2, 0, r4 /* r4 = data */
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___put_user_asm_b1:
- st.b r3, 0, r4
- or ZERO, ZERO, r2
-
-___put_user_asm_b_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __put_user_asm_w
-__put_user_asm_w:
- ld.w r2, 0, r4 /* r4 = data */
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___put_user_asm_w1:
- st.w r3, 0, r4
- or ZERO, ZERO, r2
-
-___put_user_asm_w_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __put_user_asm_l
-__put_user_asm_l:
- ld.l r2, 0, r4 /* r4 = data */
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___put_user_asm_l1:
- st.l r3, 0, r4
- or ZERO, ZERO, r2
-
-___put_user_asm_l_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-
- .global __put_user_asm_q
-__put_user_asm_q:
- ld.q r2, 0, r4 /* r4 = data */
- movi -(EFAULT), r2 /* r2 = reply, no real fixup */
-
-___put_user_asm_q1:
- st.q r3, 0, r4
- or ZERO, ZERO, r2
-
-___put_user_asm_q_exit:
- ptabs LINK, tr0
- blink tr0, ZERO
-
-panic_stash_regs:
- /* The idea is : when we get an unhandled panic, we dump the registers
- to a known memory location, the just sit in a tight loop.
- This allows the human to look at the memory region through the GDB
- session (assuming the debug module's SHwy initiator isn't locked up
- or anything), to hopefully analyze the cause of the panic. */
-
- /* On entry, former r15 (SP) is in DCR
- former r0 is at resvec_saved_area + 0
- former r1 is at resvec_saved_area + 8
- former tr0 is at resvec_saved_area + 32
- DCR is the only register whose value is lost altogether.
- */
-
- movi 0xffffffff80000000, r0 ! phy of dump area
- ld.q SP, 0x000, r1 ! former r0
- st.q r0, 0x000, r1
- ld.q SP, 0x008, r1 ! former r1
- st.q r0, 0x008, r1
- st.q r0, 0x010, r2
- st.q r0, 0x018, r3
- st.q r0, 0x020, r4
- st.q r0, 0x028, r5
- st.q r0, 0x030, r6
- st.q r0, 0x038, r7
- st.q r0, 0x040, r8
- st.q r0, 0x048, r9
- st.q r0, 0x050, r10
- st.q r0, 0x058, r11
- st.q r0, 0x060, r12
- st.q r0, 0x068, r13
- st.q r0, 0x070, r14
- getcon dcr, r14
- st.q r0, 0x078, r14
- st.q r0, 0x080, r16
- st.q r0, 0x088, r17
- st.q r0, 0x090, r18
- st.q r0, 0x098, r19
- st.q r0, 0x0a0, r20
- st.q r0, 0x0a8, r21
- st.q r0, 0x0b0, r22
- st.q r0, 0x0b8, r23
- st.q r0, 0x0c0, r24
- st.q r0, 0x0c8, r25
- st.q r0, 0x0d0, r26
- st.q r0, 0x0d8, r27
- st.q r0, 0x0e0, r28
- st.q r0, 0x0e8, r29
- st.q r0, 0x0f0, r30
- st.q r0, 0x0f8, r31
- st.q r0, 0x100, r32
- st.q r0, 0x108, r33
- st.q r0, 0x110, r34
- st.q r0, 0x118, r35
- st.q r0, 0x120, r36
- st.q r0, 0x128, r37
- st.q r0, 0x130, r38
- st.q r0, 0x138, r39
- st.q r0, 0x140, r40
- st.q r0, 0x148, r41
- st.q r0, 0x150, r42
- st.q r0, 0x158, r43
- st.q r0, 0x160, r44
- st.q r0, 0x168, r45
- st.q r0, 0x170, r46
- st.q r0, 0x178, r47
- st.q r0, 0x180, r48
- st.q r0, 0x188, r49
- st.q r0, 0x190, r50
- st.q r0, 0x198, r51
- st.q r0, 0x1a0, r52
- st.q r0, 0x1a8, r53
- st.q r0, 0x1b0, r54
- st.q r0, 0x1b8, r55
- st.q r0, 0x1c0, r56
- st.q r0, 0x1c8, r57
- st.q r0, 0x1d0, r58
- st.q r0, 0x1d8, r59
- st.q r0, 0x1e0, r60
- st.q r0, 0x1e8, r61
- st.q r0, 0x1f0, r62
- st.q r0, 0x1f8, r63 ! bogus, but for consistency's sake...
-
- ld.q SP, 0x020, r1 ! former tr0
- st.q r0, 0x200, r1
- gettr tr1, r1
- st.q r0, 0x208, r1
- gettr tr2, r1
- st.q r0, 0x210, r1
- gettr tr3, r1
- st.q r0, 0x218, r1
- gettr tr4, r1
- st.q r0, 0x220, r1
- gettr tr5, r1
- st.q r0, 0x228, r1
- gettr tr6, r1
- st.q r0, 0x230, r1
- gettr tr7, r1
- st.q r0, 0x238, r1
-
- getcon sr, r1
- getcon ssr, r2
- getcon pssr, r3
- getcon spc, r4
- getcon pspc, r5
- getcon intevt, r6
- getcon expevt, r7
- getcon pexpevt, r8
- getcon tra, r9
- getcon tea, r10
- getcon kcr0, r11
- getcon kcr1, r12
- getcon vbr, r13
- getcon resvec, r14
-
- st.q r0, 0x240, r1
- st.q r0, 0x248, r2
- st.q r0, 0x250, r3
- st.q r0, 0x258, r4
- st.q r0, 0x260, r5
- st.q r0, 0x268, r6
- st.q r0, 0x270, r7
- st.q r0, 0x278, r8
- st.q r0, 0x280, r9
- st.q r0, 0x288, r10
- st.q r0, 0x290, r11
- st.q r0, 0x298, r12
- st.q r0, 0x2a0, r13
- st.q r0, 0x2a8, r14
-
- getcon SPC,r2
- getcon SSR,r3
- getcon EXPEVT,r4
- /* Prepare to jump to C - physical address */
- movi panic_handler-CONFIG_CACHED_MEMORY_OFFSET, r1
- ori r1, 1, r1
- ptabs r1, tr0
- getcon DCR, SP
- blink tr0, ZERO
- nop
- nop
- nop
- nop
-
-
-
-
-/*
- * --- Signal Handling Section
- */
-
-/*
- * extern long long _sa_default_rt_restorer
- * extern long long _sa_default_restorer
- *
- * or, better,
- *
- * extern void _sa_default_rt_restorer(void)
- * extern void _sa_default_restorer(void)
- *
- * Code prototypes to do a sys_rt_sigreturn() or sys_sysreturn()
- * from user space. Copied into user space by signal management.
- * Both must be quad aligned and 2 quad long (4 instructions).
- *
- */
- .balign 8
- .global sa_default_rt_restorer
-sa_default_rt_restorer:
- movi 0x10, r9
- shori __NR_rt_sigreturn, r9
- trapa r9
- nop
-
- .balign 8
- .global sa_default_restorer
-sa_default_restorer:
- movi 0x10, r9
- shori __NR_sigreturn, r9
- trapa r9
- nop
-
-/*
- * --- __ex_table Section
- */
-
-/*
- * User Access Exception Table.
- */
- .section __ex_table, "a"
-
- .global asm_uaccess_start /* Just a marker */
-asm_uaccess_start:
-
- .long ___copy_user1, ___copy_user_exit
- .long ___copy_user2, ___copy_user_exit
- .long ___clear_user1, ___clear_user_exit
- .long ___strncpy_from_user1, ___strncpy_from_user_exit
- .long ___strnlen_user1, ___strnlen_user_exit
- .long ___get_user_asm_b1, ___get_user_asm_b_exit
- .long ___get_user_asm_w1, ___get_user_asm_w_exit
- .long ___get_user_asm_l1, ___get_user_asm_l_exit
- .long ___get_user_asm_q1, ___get_user_asm_q_exit
- .long ___put_user_asm_b1, ___put_user_asm_b_exit
- .long ___put_user_asm_w1, ___put_user_asm_w_exit
- .long ___put_user_asm_l1, ___put_user_asm_l_exit
- .long ___put_user_asm_q1, ___put_user_asm_q_exit
-
- .global asm_uaccess_end /* Just a marker */
-asm_uaccess_end:
-
-
-
-
-/*
- * --- .text.init Section
- */
-
- .section .text.init, "ax"
-
-/*
- * void trap_init (void)
- *
- */
- .global trap_init
-trap_init:
- addi SP, -24, SP /* Room to save r28/r29/r30 */
- st.q SP, 0, r28
- st.q SP, 8, r29
- st.q SP, 16, r30
-
- /* Set VBR and RESVEC */
- movi LVBR_block, r19
- andi r19, -4, r19 /* reset MMUOFF + reserved */
- /* For RESVEC exceptions we force the MMU off, which means we need the
- physical address. */
- movi LRESVEC_block-CONFIG_CACHED_MEMORY_OFFSET, r20
- andi r20, -4, r20 /* reset reserved */
- ori r20, 1, r20 /* set MMUOFF */
- putcon r19, VBR
- putcon r20, RESVEC
-
- /* Sanity check */
- movi LVBR_block_end, r21
- andi r21, -4, r21
- movi BLOCK_SIZE, r29 /* r29 = expected size */
- or r19, ZERO, r30
- add r19, r29, r19
-
- /*
- * Ugly, but better loop forever now than crash afterwards.
- * We should print a message, but if we touch LVBR or
- * LRESVEC blocks we should not be surprised if we get stuck
- * in trap_init().
- */
- pta trap_init_loop, tr1
- gettr tr1, r28 /* r28 = trap_init_loop */
- sub r21, r30, r30 /* r30 = actual size */
-
- /*
- * VBR/RESVEC handlers overlap by being bigger than
- * allowed. Very bad. Just loop forever.
- * (r28) panic/loop address
- * (r29) expected size
- * (r30) actual size
- */
-trap_init_loop:
- bne r19, r21, tr1
-
- /* Now that exception vectors are set up reset SR.BL */
- getcon SR, r22
- movi SR_UNBLOCK_EXC, r23
- and r22, r23, r22
- putcon r22, SR
-
- addi SP, 24, SP
- ptabs LINK, tr0
- blink tr0, ZERO
-
diff --git a/arch/sh64/kernel/fpu.c b/arch/sh64/kernel/fpu.c
deleted file mode 100644
index 8ad4ed6a6c9..00000000000
--- a/arch/sh64/kernel/fpu.c
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/fpu.c
- *
- * Copyright (C) 2001 Manuela Cirronis, Paolo Alberelli
- * Copyright (C) 2002 STMicroelectronics Limited
- * Author : Stuart Menefy
- *
- * Started from SH4 version:
- * Copyright (C) 1999, 2000 Kaz Kojima & Niibe Yutaka
- *
- */
-
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <asm/processor.h>
-#include <asm/user.h>
-#include <asm/io.h>
-
-/*
- * Initially load the FPU with signalling NANS. This bit pattern
- * has the property that no matter whether considered as single or as
- * double precision, it still represents a signalling NAN.
- */
-#define sNAN64 0xFFFFFFFFFFFFFFFFULL
-#define sNAN32 0xFFFFFFFFUL
-
-static union sh_fpu_union init_fpuregs = {
- .hard = {
- .fp_regs = { [0 ... 63] = sNAN32 },
- .fpscr = FPSCR_INIT
- }
-};
-
-inline void fpsave(struct sh_fpu_hard_struct *fpregs)
-{
- asm volatile("fst.p %0, (0*8), fp0\n\t"
- "fst.p %0, (1*8), fp2\n\t"
- "fst.p %0, (2*8), fp4\n\t"
- "fst.p %0, (3*8), fp6\n\t"
- "fst.p %0, (4*8), fp8\n\t"
- "fst.p %0, (5*8), fp10\n\t"
- "fst.p %0, (6*8), fp12\n\t"
- "fst.p %0, (7*8), fp14\n\t"
- "fst.p %0, (8*8), fp16\n\t"
- "fst.p %0, (9*8), fp18\n\t"
- "fst.p %0, (10*8), fp20\n\t"
- "fst.p %0, (11*8), fp22\n\t"
- "fst.p %0, (12*8), fp24\n\t"
- "fst.p %0, (13*8), fp26\n\t"
- "fst.p %0, (14*8), fp28\n\t"
- "fst.p %0, (15*8), fp30\n\t"
- "fst.p %0, (16*8), fp32\n\t"
- "fst.p %0, (17*8), fp34\n\t"
- "fst.p %0, (18*8), fp36\n\t"
- "fst.p %0, (19*8), fp38\n\t"
- "fst.p %0, (20*8), fp40\n\t"
- "fst.p %0, (21*8), fp42\n\t"
- "fst.p %0, (22*8), fp44\n\t"
- "fst.p %0, (23*8), fp46\n\t"
- "fst.p %0, (24*8), fp48\n\t"
- "fst.p %0, (25*8), fp50\n\t"
- "fst.p %0, (26*8), fp52\n\t"
- "fst.p %0, (27*8), fp54\n\t"
- "fst.p %0, (28*8), fp56\n\t"
- "fst.p %0, (29*8), fp58\n\t"
- "fst.p %0, (30*8), fp60\n\t"
- "fst.p %0, (31*8), fp62\n\t"
-
- "fgetscr fr63\n\t"
- "fst.s %0, (32*8), fr63\n\t"
- : /* no output */
- : "r" (fpregs)
- : "memory");
-}
-
-
-static inline void
-fpload(struct sh_fpu_hard_struct *fpregs)
-{
- asm volatile("fld.p %0, (0*8), fp0\n\t"
- "fld.p %0, (1*8), fp2\n\t"
- "fld.p %0, (2*8), fp4\n\t"
- "fld.p %0, (3*8), fp6\n\t"
- "fld.p %0, (4*8), fp8\n\t"
- "fld.p %0, (5*8), fp10\n\t"
- "fld.p %0, (6*8), fp12\n\t"
- "fld.p %0, (7*8), fp14\n\t"
- "fld.p %0, (8*8), fp16\n\t"
- "fld.p %0, (9*8), fp18\n\t"
- "fld.p %0, (10*8), fp20\n\t"
- "fld.p %0, (11*8), fp22\n\t"
- "fld.p %0, (12*8), fp24\n\t"
- "fld.p %0, (13*8), fp26\n\t"
- "fld.p %0, (14*8), fp28\n\t"
- "fld.p %0, (15*8), fp30\n\t"
- "fld.p %0, (16*8), fp32\n\t"
- "fld.p %0, (17*8), fp34\n\t"
- "fld.p %0, (18*8), fp36\n\t"
- "fld.p %0, (19*8), fp38\n\t"
- "fld.p %0, (20*8), fp40\n\t"
- "fld.p %0, (21*8), fp42\n\t"
- "fld.p %0, (22*8), fp44\n\t"
- "fld.p %0, (23*8), fp46\n\t"
- "fld.p %0, (24*8), fp48\n\t"
- "fld.p %0, (25*8), fp50\n\t"
- "fld.p %0, (26*8), fp52\n\t"
- "fld.p %0, (27*8), fp54\n\t"
- "fld.p %0, (28*8), fp56\n\t"
- "fld.p %0, (29*8), fp58\n\t"
- "fld.p %0, (30*8), fp60\n\t"
-
- "fld.s %0, (32*8), fr63\n\t"
- "fputscr fr63\n\t"
-
- "fld.p %0, (31*8), fp62\n\t"
- : /* no output */
- : "r" (fpregs) );
-}
-
-void fpinit(struct sh_fpu_hard_struct *fpregs)
-{
- *fpregs = init_fpuregs.hard;
-}
-
-asmlinkage void
-do_fpu_error(unsigned long ex, struct pt_regs *regs)
-{
- struct task_struct *tsk = current;
-
- regs->pc += 4;
-
- tsk->thread.trap_no = 11;
- tsk->thread.error_code = 0;
- force_sig(SIGFPE, tsk);
-}
-
-
-asmlinkage void
-do_fpu_state_restore(unsigned long ex, struct pt_regs *regs)
-{
- void die(const char *str, struct pt_regs *regs, long err);
-
- if (! user_mode(regs))
- die("FPU used in kernel", regs, ex);
-
- regs->sr &= ~SR_FD;
-
- if (last_task_used_math == current)
- return;
-
- grab_fpu();
- if (last_task_used_math != NULL) {
- /* Other processes fpu state, save away */
- fpsave(&last_task_used_math->thread.fpu.hard);
- }
- last_task_used_math = current;
- if (used_math()) {
- fpload(&current->thread.fpu.hard);
- } else {
- /* First time FPU user. */
- fpload(&init_fpuregs.hard);
- set_used_math();
- }
- release_fpu();
-}
-
diff --git a/arch/sh64/kernel/head.S b/arch/sh64/kernel/head.S
deleted file mode 100644
index 186406d3ad9..00000000000
--- a/arch/sh64/kernel/head.S
+++ /dev/null
@@ -1,372 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/head.S
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- *
- * benedict.gaster@superh.com: 2nd May 2002
- * Moved definition of empty_zero_page to its own section allowing
- * it to be placed at an absolute address known at load time.
- *
- * lethal@linux-sh.org: 9th May 2003
- * Kill off GLOBAL_NAME() usage.
- *
- * lethal@linux-sh.org: 8th May 2004
- * Add early SCIF console DTLB mapping.
- */
-
-
-#include <asm/page.h>
-#include <asm/mmu_context.h>
-#include <asm/cache.h>
-#include <asm/tlb.h>
-#include <asm/processor.h>
-#include <asm/registers.h>
-#include <asm/thread_info.h>
-
-/*
- * MMU defines: TLB boundaries.
- */
-
-#define MMUIR_FIRST ITLB_FIXED
-#define MMUIR_END ITLB_LAST_VAR_UNRESTRICTED+TLB_STEP
-#define MMUIR_STEP TLB_STEP
-
-#define MMUDR_FIRST DTLB_FIXED
-#define MMUDR_END DTLB_LAST_VAR_UNRESTRICTED+TLB_STEP
-#define MMUDR_STEP TLB_STEP
-
-/* Safety check : CONFIG_CACHED_MEMORY_OFFSET has to be a multiple of 512Mb */
-#if (CONFIG_CACHED_MEMORY_OFFSET & ((1UL<<29)-1))
-#error "CONFIG_CACHED_MEMORY_OFFSET must be a multiple of 512Mb"
-#endif
-
-/*
- * MMU defines: Fixed TLBs.
- */
-/* Deal safely with the case where the base of RAM is not 512Mb aligned */
-
-#define ALIGN_512M_MASK (0xffffffffe0000000)
-#define ALIGNED_EFFECTIVE ((CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START) & ALIGN_512M_MASK)
-#define ALIGNED_PHYSICAL (CONFIG_MEMORY_START & ALIGN_512M_MASK)
-
-#define MMUIR_TEXT_H (0x0000000000000003 | ALIGNED_EFFECTIVE)
- /* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
-
-#define MMUIR_TEXT_L (0x000000000000009a | ALIGNED_PHYSICAL)
- /* 512 Mb, Cacheable, Write-back, execute, Not User, Ph. Add. */
-
-#define MMUDR_CACHED_H 0x0000000000000003 | ALIGNED_EFFECTIVE
- /* Enabled, Shared, ASID 0, Eff. Add. 0xA0000000 */
-#define MMUDR_CACHED_L 0x000000000000015a | ALIGNED_PHYSICAL
- /* 512 Mb, Cacheable, Write-back, read/write, Not User, Ph. Add. */
-
-#ifdef CONFIG_ICACHE_DISABLED
-#define ICCR0_INIT_VAL ICCR0_OFF /* ICACHE off */
-#else
-#define ICCR0_INIT_VAL ICCR0_ON | ICCR0_ICI /* ICE + ICI */
-#endif
-#define ICCR1_INIT_VAL ICCR1_NOLOCK /* No locking */
-
-#if defined (CONFIG_DCACHE_DISABLED)
-#define OCCR0_INIT_VAL OCCR0_OFF /* D-cache: off */
-#elif defined (CONFIG_DCACHE_WRITE_THROUGH)
-#define OCCR0_INIT_VAL OCCR0_ON | OCCR0_OCI | OCCR0_WT /* D-cache: on, */
- /* WT, invalidate */
-#elif defined (CONFIG_DCACHE_WRITE_BACK)
-#define OCCR0_INIT_VAL OCCR0_ON | OCCR0_OCI | OCCR0_WB /* D-cache: on, */
- /* WB, invalidate */
-#else
-#error preprocessor flag CONFIG_DCACHE_... not recognized!
-#endif
-
-#define OCCR1_INIT_VAL OCCR1_NOLOCK /* No locking */
-
- .section .empty_zero_page, "aw"
- .global empty_zero_page
-
-empty_zero_page:
- .long 1 /* MOUNT_ROOT_RDONLY */
- .long 0 /* RAMDISK_FLAGS */
- .long 0x0200 /* ORIG_ROOT_DEV */
- .long 1 /* LOADER_TYPE */
- .long 0x00800000 /* INITRD_START */
- .long 0x00800000 /* INITRD_SIZE */
- .long 0
-
- .text
- .balign 4096,0,4096
-
- .section .data, "aw"
- .balign PAGE_SIZE
-
- .section .data, "aw"
- .balign PAGE_SIZE
-
- .global swapper_pg_dir
-swapper_pg_dir:
- .space PAGE_SIZE, 0
-
- .global empty_bad_page
-empty_bad_page:
- .space PAGE_SIZE, 0
-
- .global empty_bad_pte_table
-empty_bad_pte_table:
- .space PAGE_SIZE, 0
-
- .global fpu_in_use
-fpu_in_use: .quad 0
-
-
- .section .text.head, "ax"
- .balign L1_CACHE_BYTES
-/*
- * Condition at the entry of __stext:
- * . Reset state:
- * . SR.FD = 1 (FPU disabled)
- * . SR.BL = 1 (Exceptions disabled)
- * . SR.MD = 1 (Privileged Mode)
- * . SR.MMU = 0 (MMU Disabled)
- * . SR.CD = 0 (CTC User Visible)
- * . SR.IMASK = Undefined (Interrupt Mask)
- *
- * Operations supposed to be performed by __stext:
- * . prevent speculative fetch onto device memory while MMU is off
- * . reflect as much as possible SH5 ABI (r15, r26, r27, r18)
- * . first, save CPU state and set it to something harmless
- * . any CPU detection and/or endianness settings (?)
- * . initialize EMI/LMI (but not TMU/RTC/INTC/SCIF): TBD
- * . set initial TLB entries for cached and uncached regions
- * (no fine granularity paging)
- * . set initial cache state
- * . enable MMU and caches
- * . set CPU to a consistent state
- * . registers (including stack pointer and current/KCR0)
- * . NOT expecting to set Exception handling nor VBR/RESVEC/DCR
- * at this stage. This is all to later Linux initialization steps.
- * . initialize FPU
- * . clear BSS
- * . jump into start_kernel()
- * . be prepared to hopeless start_kernel() returns.
- *
- */
- .global _stext
-_stext:
- /*
- * Prevent speculative fetch on device memory due to
- * uninitialized target registers.
- */
- ptabs/u ZERO, tr0
- ptabs/u ZERO, tr1
- ptabs/u ZERO, tr2
- ptabs/u ZERO, tr3
- ptabs/u ZERO, tr4
- ptabs/u ZERO, tr5
- ptabs/u ZERO, tr6
- ptabs/u ZERO, tr7
- synci
-
- /*
- * Read/Set CPU state. After this block:
- * r29 = Initial SR
- */
- getcon SR, r29
- movi SR_HARMLESS, r20
- putcon r20, SR
-
- /*
- * Initialize EMI/LMI. To Be Done.
- */
-
- /*
- * CPU detection and/or endianness settings (?). To Be Done.
- * Pure PIC code here, please ! Just save state into r30.
- * After this block:
- * r30 = CPU type/Platform Endianness
- */
-
- /*
- * Set initial TLB entries for cached and uncached regions.
- * Note: PTA/BLINK is PIC code, PTABS/BLINK isn't !
- */
- /* Clear ITLBs */
- pta clear_ITLB, tr1
- movi MMUIR_FIRST, r21
- movi MMUIR_END, r22
-clear_ITLB:
- putcfg r21, 0, ZERO /* Clear MMUIR[n].PTEH.V */
- addi r21, MMUIR_STEP, r21
- bne r21, r22, tr1
-
- /* Clear DTLBs */
- pta clear_DTLB, tr1
- movi MMUDR_FIRST, r21
- movi MMUDR_END, r22
-clear_DTLB:
- putcfg r21, 0, ZERO /* Clear MMUDR[n].PTEH.V */
- addi r21, MMUDR_STEP, r21
- bne r21, r22, tr1
-
- /* Map one big (512Mb) page for ITLB */
- movi MMUIR_FIRST, r21
- movi MMUIR_TEXT_L, r22 /* PTEL first */
- add.l r22, r63, r22 /* Sign extend */
- putcfg r21, 1, r22 /* Set MMUIR[0].PTEL */
- movi MMUIR_TEXT_H, r22 /* PTEH last */
- add.l r22, r63, r22 /* Sign extend */
- putcfg r21, 0, r22 /* Set MMUIR[0].PTEH */
-
- /* Map one big CACHED (512Mb) page for DTLB */
- movi MMUDR_FIRST, r21
- movi MMUDR_CACHED_L, r22 /* PTEL first */
- add.l r22, r63, r22 /* Sign extend */
- putcfg r21, 1, r22 /* Set MMUDR[0].PTEL */
- movi MMUDR_CACHED_H, r22 /* PTEH last */
- add.l r22, r63, r22 /* Sign extend */
- putcfg r21, 0, r22 /* Set MMUDR[0].PTEH */
-
-#ifdef CONFIG_EARLY_PRINTK
- /*
- * Setup a DTLB translation for SCIF phys.
- */
- addi r21, MMUDR_STEP, r21
- movi 0x0a03, r22 /* SCIF phys */
- shori 0x0148, r22
- putcfg r21, 1, r22 /* PTEL first */
- movi 0xfa03, r22 /* 0xfa030000, fixed SCIF virt */
- shori 0x0003, r22
- putcfg r21, 0, r22 /* PTEH last */
-#endif
-
- /*
- * Set cache behaviours.
- */
- /* ICache */
- movi ICCR_BASE, r21
- movi ICCR0_INIT_VAL, r22
- movi ICCR1_INIT_VAL, r23
- putcfg r21, ICCR_REG0, r22
- putcfg r21, ICCR_REG1, r23
-
- /* OCache */
- movi OCCR_BASE, r21
- movi OCCR0_INIT_VAL, r22
- movi OCCR1_INIT_VAL, r23
- putcfg r21, OCCR_REG0, r22
- putcfg r21, OCCR_REG1, r23
-
-
- /*
- * Enable Caches and MMU. Do the first non-PIC jump.
- * Now head.S global variables, constants and externs
- * can be used.
- */
- getcon SR, r21
- movi SR_ENABLE_MMU, r22
- or r21, r22, r21
- putcon r21, SSR
- movi hyperspace, r22
- ori r22, 1, r22 /* Make it SHmedia, not required but..*/
- putcon r22, SPC
- synco
- rte /* And now go into the hyperspace ... */
-hyperspace: /* ... that's the next instruction ! */
-
- /*
- * Set CPU to a consistent state.
- * r31 = FPU support flag
- * tr0/tr7 in use. Others give a chance to loop somewhere safe
- */
- movi start_kernel, r32
- ori r32, 1, r32
-
- ptabs r32, tr0 /* r32 = _start_kernel address */
- pta/u hopeless, tr1
- pta/u hopeless, tr2
- pta/u hopeless, tr3
- pta/u hopeless, tr4
- pta/u hopeless, tr5
- pta/u hopeless, tr6
- pta/u hopeless, tr7
- gettr tr1, r28 /* r28 = hopeless address */
-
- /* Set initial stack pointer */
- movi init_thread_union, SP
- putcon SP, KCR0 /* Set current to init_task */
- movi THREAD_SIZE, r22 /* Point to the end */
- add SP, r22, SP
-
- /*
- * Initialize FPU.
- * Keep FPU flag in r31. After this block:
- * r31 = FPU flag
- */
- movi fpu_in_use, r31 /* Temporary */
-
-#ifdef CONFIG_SH_FPU
- getcon SR, r21
- movi SR_ENABLE_FPU, r22
- and r21, r22, r22
- putcon r22, SR /* Try to enable */
- getcon SR, r22
- xor r21, r22, r21
- shlri r21, 15, r21 /* Supposedly 0/1 */
- st.q r31, 0 , r21 /* Set fpu_in_use */
-#else
- movi 0, r21
- st.q r31, 0 , r21 /* Set fpu_in_use */
-#endif
- or r21, ZERO, r31 /* Set FPU flag at last */
-
-#ifndef CONFIG_SH_NO_BSS_INIT
-/* Don't clear BSS if running on slow platforms such as an RTL simulation,
- remote memory via SHdebug link, etc. For these the memory can be guaranteed
- to be all zero on boot anyway. */
- /*
- * Clear bss
- */
- pta clear_quad, tr1
- movi __bss_start, r22
- movi _end, r23
-clear_quad:
- st.q r22, 0, ZERO
- addi r22, 8, r22
- bne r22, r23, tr1 /* Both quad aligned, see vmlinux.lds.S */
-#endif
- pta/u hopeless, tr1
-
- /* Say bye to head.S but be prepared to wrongly get back ... */
- blink tr0, LINK
-
- /* If we ever get back here through LINK/tr1-tr7 */
- pta/u hopeless, tr7
-
-hopeless:
- /*
- * Something's badly wrong here. Loop endlessly,
- * there's nothing more we can do about it.
- *
- * Note on hopeless: it can be jumped into invariably
- * before or after jumping into hyperspace. The only
- * requirement is to be PIC called (PTA) before and
- * any way (PTA/PTABS) after. According to Virtual
- * to Physical mapping a simulator/emulator can easily
- * tell where we came here from just looking at hopeless
- * (PC) address.
- *
- * For debugging purposes:
- * (r28) hopeless/loop address
- * (r29) Original SR
- * (r30) CPU type/Platform endianness
- * (r31) FPU Support
- * (r32) _start_kernel address
- */
- blink tr7, ZERO
-
-
diff --git a/arch/sh64/kernel/init_task.c b/arch/sh64/kernel/init_task.c
deleted file mode 100644
index deee8bfd327..00000000000
--- a/arch/sh64/kernel/init_task.c
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/init_task.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- */
-#include <linux/rwsem.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/init_task.h>
-#include <linux/mqueue.h>
-#include <linux/fs.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-static struct fs_struct init_fs = INIT_FS;
-static struct files_struct init_files = INIT_FILES;
-static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
-static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
-struct mm_struct init_mm = INIT_MM(init_mm);
-
-struct pt_regs fake_swapper_regs;
-
-/*
- * Initial thread structure.
- *
- * We need to make sure that this is THREAD_SIZE-byte aligned due
- * to the way process stacks are handled. This is done by having a
- * special "init_task" linker map entry..
- */
-union thread_union init_thread_union
- __attribute__((__section__(".data.init_task"))) =
- { INIT_THREAD_INFO(init_task) };
-
-/*
- * Initial task structure.
- *
- * All other task structs will be allocated on slabs in fork.c
- */
-struct task_struct init_task = INIT_TASK(init_task);
-
diff --git a/arch/sh64/kernel/irq.c b/arch/sh64/kernel/irq.c
deleted file mode 100644
index 9412b716670..00000000000
--- a/arch/sh64/kernel/irq.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/irq.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- */
-
-/*
- * IRQs are in fact implemented a bit like signal handlers for the kernel.
- * Naturally it's not a 1:1 relation, but there are similarities.
- */
-
-#include <linux/errno.h>
-#include <linux/kernel_stat.h>
-#include <linux/signal.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/timex.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <linux/bitops.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/pgalloc.h>
-#include <asm/delay.h>
-#include <asm/irq.h>
-#include <linux/irq.h>
-
-void ack_bad_irq(unsigned int irq)
-{
- printk("unexpected IRQ trap at irq %02x\n", irq);
-}
-
-#if defined(CONFIG_PROC_FS)
-int show_interrupts(struct seq_file *p, void *v)
-{
- int i = *(loff_t *) v, j;
- struct irqaction * action;
- unsigned long flags;
-
- if (i == 0) {
- seq_puts(p, " ");
- for_each_online_cpu(j)
- seq_printf(p, "CPU%d ",j);
- seq_putc(p, '\n');
- }
-
- if (i < NR_IRQS) {
- spin_lock_irqsave(&irq_desc[i].lock, flags);
- action = irq_desc[i].action;
- if (!action)
- goto unlock;
- seq_printf(p, "%3d: ",i);
- seq_printf(p, "%10u ", kstat_irqs(i));
- seq_printf(p, " %14s", irq_desc[i].chip->typename);
- seq_printf(p, " %s", action->name);
-
- for (action=action->next; action; action = action->next)
- seq_printf(p, ", %s", action->name);
- seq_putc(p, '\n');
-unlock:
- spin_unlock_irqrestore(&irq_desc[i].lock, flags);
- }
- return 0;
-}
-#endif
-
-/*
- * do_NMI handles all Non-Maskable Interrupts.
- */
-asmlinkage void do_NMI(unsigned long vector_num, struct pt_regs * regs)
-{
- if (regs->sr & 0x40000000)
- printk("unexpected NMI trap in system mode\n");
- else
- printk("unexpected NMI trap in user mode\n");
-
- /* No statistics */
-}
-
-/*
- * do_IRQ handles all normal device IRQ's.
- */
-asmlinkage int do_IRQ(unsigned long vector_num, struct pt_regs * regs)
-{
- struct pt_regs *old_regs = set_irq_regs(regs);
- int irq;
-
- irq_enter();
-
- irq = irq_demux(vector_num);
-
- if (irq >= 0) {
- __do_IRQ(irq);
- } else {
- printk("unexpected IRQ trap at vector %03lx\n", vector_num);
- }
-
- irq_exit();
-
- set_irq_regs(old_regs);
- return 1;
-}
-
diff --git a/arch/sh64/kernel/irq_intc.c b/arch/sh64/kernel/irq_intc.c
deleted file mode 100644
index 3b63a93198f..00000000000
--- a/arch/sh64/kernel/irq_intc.c
+++ /dev/null
@@ -1,272 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/irq_intc.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- * Interrupt Controller support for SH5 INTC.
- * Per-interrupt selective. IRLM=0 (Fixed priority) is not
- * supported being useless without a cascaded interrupt
- * controller.
- *
- */
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/kernel.h>
-#include <linux/stddef.h>
-#include <linux/bitops.h> /* this includes also <asm/registers.h */
- /* which is required to remap register */
- /* names used into __asm__ blocks... */
-
-#include <asm/hardware.h>
-#include <asm/platform.h>
-#include <asm/page.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-
-/*
- * Maybe the generic Peripheral block could move to a more
- * generic include file. INTC Block will be defined here
- * and only here to make INTC self-contained in a single
- * file.
- */
-#define INTC_BLOCK_OFFSET 0x01000000
-
-/* Base */
-#define INTC_BASE PHYS_PERIPHERAL_BLOCK + \
- INTC_BLOCK_OFFSET
-
-/* Address */
-#define INTC_ICR_SET (intc_virt + 0x0)
-#define INTC_ICR_CLEAR (intc_virt + 0x8)
-#define INTC_INTPRI_0 (intc_virt + 0x10)
-#define INTC_INTSRC_0 (intc_virt + 0x50)
-#define INTC_INTSRC_1 (intc_virt + 0x58)
-#define INTC_INTREQ_0 (intc_virt + 0x60)
-#define INTC_INTREQ_1 (intc_virt + 0x68)
-#define INTC_INTENB_0 (intc_virt + 0x70)
-#define INTC_INTENB_1 (intc_virt + 0x78)
-#define INTC_INTDSB_0 (intc_virt + 0x80)
-#define INTC_INTDSB_1 (intc_virt + 0x88)
-
-#define INTC_ICR_IRLM 0x1
-#define INTC_INTPRI_PREGS 8 /* 8 Priority Registers */
-#define INTC_INTPRI_PPREG 8 /* 8 Priorities per Register */
-
-
-/*
- * Mapper between the vector ordinal and the IRQ number
- * passed to kernel/device drivers.
- */
-int intc_evt_to_irq[(0xE20/0x20)+1] = {
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0x000 - 0x0E0 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0x100 - 0x1E0 */
- 0, 0, 0, 0, 0, 1, 0, 0, /* 0x200 - 0x2E0 */
- 2, 0, 0, 3, 0, 0, 0, -1, /* 0x300 - 0x3E0 */
- 32, 33, 34, 35, 36, 37, 38, -1, /* 0x400 - 0x4E0 */
- -1, -1, -1, 63, -1, -1, -1, -1, /* 0x500 - 0x5E0 */
- -1, -1, 18, 19, 20, 21, 22, -1, /* 0x600 - 0x6E0 */
- 39, 40, 41, 42, -1, -1, -1, -1, /* 0x700 - 0x7E0 */
- 4, 5, 6, 7, -1, -1, -1, -1, /* 0x800 - 0x8E0 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0x900 - 0x9E0 */
- 12, 13, 14, 15, 16, 17, -1, -1, /* 0xA00 - 0xAE0 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0xB00 - 0xBE0 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0xC00 - 0xCE0 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 0xD00 - 0xDE0 */
- -1, -1 /* 0xE00 - 0xE20 */
-};
-
-/*
- * Opposite mapper.
- */
-static int IRQ_to_vectorN[NR_INTC_IRQS] = {
- 0x12, 0x15, 0x18, 0x1B, 0x40, 0x41, 0x42, 0x43, /* 0- 7 */
- -1, -1, -1, -1, 0x50, 0x51, 0x52, 0x53, /* 8-15 */
- 0x54, 0x55, 0x32, 0x33, 0x34, 0x35, 0x36, -1, /* 16-23 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 24-31 */
- 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x38, /* 32-39 */
- 0x39, 0x3A, 0x3B, -1, -1, -1, -1, -1, /* 40-47 */
- -1, -1, -1, -1, -1, -1, -1, -1, /* 48-55 */
- -1, -1, -1, -1, -1, -1, -1, 0x2B, /* 56-63 */
-
-};
-
-static unsigned long intc_virt;
-
-static unsigned int startup_intc_irq(unsigned int irq);
-static void shutdown_intc_irq(unsigned int irq);
-static void enable_intc_irq(unsigned int irq);
-static void disable_intc_irq(unsigned int irq);
-static void mask_and_ack_intc(unsigned int);
-static void end_intc_irq(unsigned int irq);
-
-static struct hw_interrupt_type intc_irq_type = {
- .typename = "INTC",
- .startup = startup_intc_irq,
- .shutdown = shutdown_intc_irq,
- .enable = enable_intc_irq,
- .disable = disable_intc_irq,
- .ack = mask_and_ack_intc,
- .end = end_intc_irq
-};
-
-static int irlm; /* IRL mode */
-
-static unsigned int startup_intc_irq(unsigned int irq)
-{
- enable_intc_irq(irq);
- return 0; /* never anything pending */
-}
-
-static void shutdown_intc_irq(unsigned int irq)
-{
- disable_intc_irq(irq);
-}
-
-static void enable_intc_irq(unsigned int irq)
-{
- unsigned long reg;
- unsigned long bitmask;
-
- if ((irq <= IRQ_IRL3) && (irlm == NO_PRIORITY))
- printk("Trying to use straight IRL0-3 with an encoding platform.\n");
-
- if (irq < 32) {
- reg = INTC_INTENB_0;
- bitmask = 1 << irq;
- } else {
- reg = INTC_INTENB_1;
- bitmask = 1 << (irq - 32);
- }
-
- ctrl_outl(bitmask, reg);
-}
-
-static void disable_intc_irq(unsigned int irq)
-{
- unsigned long reg;
- unsigned long bitmask;
-
- if (irq < 32) {
- reg = INTC_INTDSB_0;
- bitmask = 1 << irq;
- } else {
- reg = INTC_INTDSB_1;
- bitmask = 1 << (irq - 32);
- }
-
- ctrl_outl(bitmask, reg);
-}
-
-static void mask_and_ack_intc(unsigned int irq)
-{
- disable_intc_irq(irq);
-}
-
-static void end_intc_irq(unsigned int irq)
-{
- enable_intc_irq(irq);
-}
-
-/* For future use, if we ever support IRLM=0) */
-void make_intc_irq(unsigned int irq)
-{
- disable_irq_nosync(irq);
- irq_desc[irq].chip = &intc_irq_type;
- disable_intc_irq(irq);
-}
-
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_SYSCTL)
-int intc_irq_describe(char* p, int irq)
-{
- if (irq < NR_INTC_IRQS)
- return sprintf(p, "(0x%3x)", IRQ_to_vectorN[irq]*0x20);
- else
- return 0;
-}
-#endif
-
-void __init init_IRQ(void)
-{
- unsigned long long __dummy0, __dummy1=~0x00000000100000f0;
- unsigned long reg;
- unsigned long data;
- int i;
-
- intc_virt = onchip_remap(INTC_BASE, 1024, "INTC");
- if (!intc_virt) {
- panic("Unable to remap INTC\n");
- }
-
-
- /* Set default: per-line enable/disable, priority driven ack/eoi */
- for (i = 0; i < NR_INTC_IRQS; i++) {
- if (platform_int_priority[i] != NO_PRIORITY) {
- irq_desc[i].chip = &intc_irq_type;
- }
- }
-
-
- /* Disable all interrupts and set all priorities to 0 to avoid trouble */
- ctrl_outl(-1, INTC_INTDSB_0);
- ctrl_outl(-1, INTC_INTDSB_1);
-
- for (reg = INTC_INTPRI_0, i = 0; i < INTC_INTPRI_PREGS; i++, reg += 8)
- ctrl_outl( NO_PRIORITY, reg);
-
-
- /* Set IRLM */
- /* If all the priorities are set to 'no priority', then
- * assume we are using encoded mode.
- */
- irlm = platform_int_priority[IRQ_IRL0] + platform_int_priority[IRQ_IRL1] + \
- platform_int_priority[IRQ_IRL2] + platform_int_priority[IRQ_IRL3];
-
- if (irlm == NO_PRIORITY) {
- /* IRLM = 0 */
- reg = INTC_ICR_CLEAR;
- i = IRQ_INTA;
- printk("Trying to use encoded IRL0-3. IRLs unsupported.\n");
- } else {
- /* IRLM = 1 */
- reg = INTC_ICR_SET;
- i = IRQ_IRL0;
- }
- ctrl_outl(INTC_ICR_IRLM, reg);
-
- /* Set interrupt priorities according to platform description */
- for (data = 0, reg = INTC_INTPRI_0; i < NR_INTC_IRQS; i++) {
- data |= platform_int_priority[i] << ((i % INTC_INTPRI_PPREG) * 4);
- if ((i % INTC_INTPRI_PPREG) == (INTC_INTPRI_PPREG - 1)) {
- /* Upon the 7th, set Priority Register */
- ctrl_outl(data, reg);
- data = 0;
- reg += 8;
- }
- }
-
-#ifdef CONFIG_SH_CAYMAN
- {
- extern void init_cayman_irq(void);
-
- init_cayman_irq();
- }
-#endif
-
- /*
- * And now let interrupts come in.
- * sti() is not enough, we need to
- * lower priority, too.
- */
- __asm__ __volatile__("getcon " __SR ", %0\n\t"
- "and %0, %1, %0\n\t"
- "putcon %0, " __SR "\n\t"
- : "=&r" (__dummy0)
- : "r" (__dummy1));
-}
diff --git a/arch/sh64/kernel/led.c b/arch/sh64/kernel/led.c
deleted file mode 100644
index e35d3f667fb..00000000000
--- a/arch/sh64/kernel/led.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * arch/sh64/kernel/led.c
- *
- * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Flash the LEDs
- */
-#include <linux/stddef.h>
-#include <linux/sched.h>
-
-void mach_led(int pos, int val);
-
-/* acts like an actual heart beat -- ie thump-thump-pause... */
-void heartbeat(void)
-{
- static unsigned int cnt = 0, period = 0, dist = 0;
-
- if (cnt == 0 || cnt == dist) {
- mach_led(-1, 1);
- } else if (cnt == 7 || cnt == dist + 7) {
- mach_led(-1, 0);
- }
-
- if (++cnt > period) {
- cnt = 0;
-
- /*
- * The hyperbolic function below modifies the heartbeat period
- * length in dependency of the current (5min) load. It goes
- * through the points f(0)=126, f(1)=86, f(5)=51, f(inf)->30.
- */
- period = ((672 << FSHIFT) / (5 * avenrun[0] +
- (7 << FSHIFT))) + 30;
- dist = period / 4;
- }
-}
-
diff --git a/arch/sh64/kernel/module.c b/arch/sh64/kernel/module.c
deleted file mode 100644
index 2598f6b88b4..00000000000
--- a/arch/sh64/kernel/module.c
+++ /dev/null
@@ -1,161 +0,0 @@
-/* Kernel module help for sh64.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- Copyright 2004 SuperH (UK) Ltd
- Author: Richard Curnow
-
- Based on the sh version, and on code from the sh64-specific parts of
- modutils, originally written by Richard Curnow and Ben Gaster.
-
-*/
-#include <linux/moduleloader.h>
-#include <linux/elf.h>
-#include <linux/vmalloc.h>
-#include <linux/fs.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(fmt...)
-#endif
-
-void *module_alloc(unsigned long size)
-{
- if (size == 0)
- return NULL;
- return vmalloc(size);
-}
-
-
-/* Free memory returned from module_alloc */
-void module_free(struct module *mod, void *module_region)
-{
- vfree(module_region);
- /* FIXME: If module_region == mod->init_region, trim exception
- table entries. */
-}
-
-/* We don't need anything special. */
-int module_frob_arch_sections(Elf_Ehdr *hdr,
- Elf_Shdr *sechdrs,
- char *secstrings,
- struct module *mod)
-{
- return 0;
-}
-
-int apply_relocate_add(Elf32_Shdr *sechdrs,
- const char *strtab,
- unsigned int symindex,
- unsigned int relsec,
- struct module *me)
-{
- unsigned int i;
- Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
- Elf32_Sym *sym;
- Elf32_Addr relocation;
- uint32_t *location;
- int align;
- int is_shmedia;
-
- DEBUGP("Applying relocate section %u to %u\n", relsec,
- sechdrs[relsec].sh_info);
- for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
- /* This is where to make the change */
- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
- + rel[i].r_offset;
- /* This is the symbol it is referring to. Note that all
- undefined symbols have been resolved. */
- sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
- + ELF32_R_SYM(rel[i].r_info);
- relocation = sym->st_value + rel[i].r_addend;
- align = (int)location & 3;
-
- /* For text addresses, bit2 of the st_other field indicates
- * whether the symbol is SHmedia (1) or SHcompact (0). If
- * SHmedia, the LSB of the symbol needs to be asserted
- * for the CPU to be in SHmedia mode when it starts executing
- * the branch target. */
- is_shmedia = (sym->st_other & 4) ? 1 : 0;
- if (is_shmedia) {
- relocation |= 1;
- }
-
- switch (ELF32_R_TYPE(rel[i].r_info)) {
- case R_SH_DIR32:
- DEBUGP("R_SH_DIR32 @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
- *location += relocation;
- break;
- case R_SH_REL32:
- DEBUGP("R_SH_REL32 @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
- relocation -= (Elf32_Addr) location;
- *location += relocation;
- break;
- case R_SH_IMM_LOW16:
- DEBUGP("R_SH_IMM_LOW16 @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
- *location = (*location & ~0x3fffc00) |
- ((relocation & 0xffff) << 10);
- break;
- case R_SH_IMM_MEDLOW16:
- DEBUGP("R_SH_IMM_MEDLOW16 @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
- *location = (*location & ~0x3fffc00) |
- (((relocation >> 16) & 0xffff) << 10);
- break;
- case R_SH_IMM_LOW16_PCREL:
- DEBUGP("R_SH_IMM_LOW16_PCREL @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
- relocation -= (Elf32_Addr) location;
- *location = (*location & ~0x3fffc00) |
- ((relocation & 0xffff) << 10);
- break;
- case R_SH_IMM_MEDLOW16_PCREL:
- DEBUGP("R_SH_IMM_MEDLOW16_PCREL @%08lx = %08lx\n", (unsigned long) location, (unsigned long) relocation);
- relocation -= (Elf32_Addr) location;
- *location = (*location & ~0x3fffc00) |
- (((relocation >> 16) & 0xffff) << 10);
- break;
- default:
- printk(KERN_ERR "module %s: Unknown relocation: %u\n",
- me->name, ELF32_R_TYPE(rel[i].r_info));
- return -ENOEXEC;
- }
- }
- return 0;
-}
-
-int apply_relocate(Elf32_Shdr *sechdrs,
- const char *strtab,
- unsigned int symindex,
- unsigned int relsec,
- struct module *me)
-{
- printk(KERN_ERR "module %s: REL RELOCATION unsupported\n",
- me->name);
- return -ENOEXEC;
-}
-
-int module_finalize(const Elf_Ehdr *hdr,
- const Elf_Shdr *sechdrs,
- struct module *me)
-{
- return 0;
-}
-
-void module_arch_cleanup(struct module *mod)
-{
-}
-
diff --git a/arch/sh64/kernel/pci_sh5.c b/arch/sh64/kernel/pci_sh5.c
deleted file mode 100644
index b4d9534d2b0..00000000000
--- a/arch/sh64/kernel/pci_sh5.c
+++ /dev/null
@@ -1,536 +0,0 @@
-/*
- * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
- * Copyright (C) 2003, 2004 Paul Mundt
- * Copyright (C) 2004 Richard Curnow
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Support functions for the SH5 PCI hardware.
- */
-
-#include <linux/kernel.h>
-#include <linux/rwsem.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/types.h>
-#include <asm/pci.h>
-#include <linux/irq.h>
-
-#include <asm/io.h>
-#include <asm/hardware.h>
-#include "pci_sh5.h"
-
-static unsigned long pcicr_virt;
-unsigned long pciio_virt;
-
-static void __init pci_fixup_ide_bases(struct pci_dev *d)
-{
- int i;
-
- /*
- * PCI IDE controllers use non-standard I/O port decoding, respect it.
- */
- if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE)
- return;
- printk("PCI: IDE base address fixup for %s\n", pci_name(d));
- for(i=0; i<4; i++) {
- struct resource *r = &d->resource[i];
- if ((r->start & ~0x80) == 0x374) {
- r->start |= 2;
- r->end = r->start;
- }
- }
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases);
-
-char * __devinit pcibios_setup(char *str)
-{
- return str;
-}
-
-/* Rounds a number UP to the nearest power of two. Used for
- * sizing the PCI window.
- */
-static u32 __init r2p2(u32 num)
-{
- int i = 31;
- u32 tmp = num;
-
- if (num == 0)
- return 0;
-
- do {
- if (tmp & (1 << 31))
- break;
- i--;
- tmp <<= 1;
- } while (i >= 0);
-
- tmp = 1 << i;
- /* If the original number isn't a power of 2, round it up */
- if (tmp != num)
- tmp <<= 1;
-
- return tmp;
-}
-
-extern unsigned long long memory_start, memory_end;
-
-int __init sh5pci_init(unsigned memStart, unsigned memSize)
-{
- u32 lsr0;
- u32 uval;
-
- pcicr_virt = onchip_remap(SH5PCI_ICR_BASE, 1024, "PCICR");
- if (!pcicr_virt) {
- panic("Unable to remap PCICR\n");
- }
-
- pciio_virt = onchip_remap(SH5PCI_IO_BASE, 0x10000, "PCIIO");
- if (!pciio_virt) {
- panic("Unable to remap PCIIO\n");
- }
-
- pr_debug("Register base addres is 0x%08lx\n", pcicr_virt);
-
- /* Clear snoop registers */
- SH5PCI_WRITE(CSCR0, 0);
- SH5PCI_WRITE(CSCR1, 0);
-
- pr_debug("Wrote to reg\n");
-
- /* Switch off interrupts */
- SH5PCI_WRITE(INTM, 0);
- SH5PCI_WRITE(AINTM, 0);
- SH5PCI_WRITE(PINTM, 0);
-
- /* Set bus active, take it out of reset */
- uval = SH5PCI_READ(CR);
-
- /* Set command Register */
- SH5PCI_WRITE(CR, uval | CR_LOCK_MASK | CR_CFINT| CR_FTO | CR_PFE | CR_PFCS | CR_BMAM);
-
- uval=SH5PCI_READ(CR);
- pr_debug("CR is actually 0x%08x\n",uval);
-
- /* Allow it to be a master */
- /* NB - WE DISABLE I/O ACCESS to stop overlap */
- /* set WAIT bit to enable stepping, an attempt to improve stability */
- SH5PCI_WRITE_SHORT(CSR_CMD,
- PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_WAIT);
-
- /*
- ** Set translation mapping memory in order to convert the address
- ** used for the main bus, to the PCI internal address.
- */
- SH5PCI_WRITE(MBR,0x40000000);
-
- /* Always set the max size 512M */
- SH5PCI_WRITE(MBMR, PCISH5_MEM_SIZCONV(512*1024*1024));
-
- /*
- ** I/O addresses are mapped at internal PCI specific address
- ** as is described into the configuration bridge table.
- ** These are changed to 0, to allow cards that have legacy
- ** io such as vga to function correctly. We set the SH5 IOBAR to
- ** 256K, which is a bit big as we can only have 64K of address space
- */
-
- SH5PCI_WRITE(IOBR,0x0);
-
- pr_debug("PCI:Writing 0x%08x to IOBR\n",0);
-
- /* Set up a 256K window. Totally pointless waste of address space */
- SH5PCI_WRITE(IOBMR,0);
- pr_debug("PCI:Writing 0x%08x to IOBMR\n",0);
-
- /* The SH5 has a HUGE 256K I/O region, which breaks the PCI spec. Ideally,
- * we would want to map the I/O region somewhere, but it is so big this is not
- * that easy!
- */
- SH5PCI_WRITE(CSR_IBAR0,~0);
- /* Set memory size value */
- memSize = memory_end - memory_start;
-
- /* Now we set up the mbars so the PCI bus can see the memory of the machine */
- if (memSize < (1024 * 1024)) {
- printk(KERN_ERR "PCISH5: Ridiculous memory size of 0x%x?\n", memSize);
- return -EINVAL;
- }
-
- /* Set LSR 0 */
- lsr0 = (memSize > (512 * 1024 * 1024)) ? 0x1ff00001 : ((r2p2(memSize) - 0x100000) | 0x1);
- SH5PCI_WRITE(LSR0, lsr0);
-
- pr_debug("PCI:Writing 0x%08x to LSR0\n",lsr0);
-
- /* Set MBAR 0 */
- SH5PCI_WRITE(CSR_MBAR0, memory_start);
- SH5PCI_WRITE(LAR0, memory_start);
-
- SH5PCI_WRITE(CSR_MBAR1,0);
- SH5PCI_WRITE(LAR1,0);
- SH5PCI_WRITE(LSR1,0);
-
- pr_debug("PCI:Writing 0x%08llx to CSR_MBAR0\n",memory_start);
- pr_debug("PCI:Writing 0x%08llx to LAR0\n",memory_start);
-
- /* Enable the PCI interrupts on the device */
- SH5PCI_WRITE(INTM, ~0);
- SH5PCI_WRITE(AINTM, ~0);
- SH5PCI_WRITE(PINTM, ~0);
-
- pr_debug("Switching on all error interrupts\n");
-
- return(0);
-}
-
-static int sh5pci_read(struct pci_bus *bus, unsigned int devfn, int where,
- int size, u32 *val)
-{
- SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
-
- switch (size) {
- case 1:
- *val = (u8)SH5PCI_READ_BYTE(PDR + (where & 3));
- break;
- case 2:
- *val = (u16)SH5PCI_READ_SHORT(PDR + (where & 2));
- break;
- case 4:
- *val = SH5PCI_READ(PDR);
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static int sh5pci_write(struct pci_bus *bus, unsigned int devfn, int where,
- int size, u32 val)
-{
- SH5PCI_WRITE(PAR, CONFIG_CMD(bus, devfn, where));
-
- switch (size) {
- case 1:
- SH5PCI_WRITE_BYTE(PDR + (where & 3), (u8)val);
- break;
- case 2:
- SH5PCI_WRITE_SHORT(PDR + (where & 2), (u16)val);
- break;
- case 4:
- SH5PCI_WRITE(PDR, val);
- break;
- }
-
- return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops pci_config_ops = {
- .read = sh5pci_read,
- .write = sh5pci_write,
-};
-
-/* Everything hangs off this */
-static struct pci_bus *pci_root_bus;
-
-
-static u8 __init no_swizzle(struct pci_dev *dev, u8 * pin)
-{
- pr_debug("swizzle for dev %d on bus %d slot %d pin is %d\n",
- dev->devfn,dev->bus->number, PCI_SLOT(dev->devfn),*pin);
- return PCI_SLOT(dev->devfn);
-}
-
-static inline u8 bridge_swizzle(u8 pin, u8 slot)
-{
- return (((pin-1) + slot) % 4) + 1;
-}
-
-u8 __init common_swizzle(struct pci_dev *dev, u8 *pinp)
-{
- if (dev->bus->number != 0) {
- u8 pin = *pinp;
- do {
- pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn));
- /* Move up the chain of bridges. */
- dev = dev->bus->self;
- } while (dev->bus->self);
- *pinp = pin;
-
- /* The slot is the slot of the last bridge. */
- }
-
- return PCI_SLOT(dev->devfn);
-}
-
-/* This needs to be shunted out of here into the board specific bit */
-
-static int __init map_cayman_irq(struct pci_dev *dev, u8 slot, u8 pin)
-{
- int result = -1;
-
- /* The complication here is that the PCI IRQ lines from the Cayman's 2
- 5V slots get into the CPU via a different path from the IRQ lines
- from the 3 3.3V slots. Thus, we have to detect whether the card's
- interrupts go via the 5V or 3.3V path, i.e. the 'bridge swizzling'
- at the point where we cross from 5V to 3.3V is not the normal case.
-
- The added complication is that we don't know that the 5V slots are
- always bus 2, because a card containing a PCI-PCI bridge may be
- plugged into a 3.3V slot, and this changes the bus numbering.
-
- Also, the Cayman has an intermediate PCI bus that goes a custom
- expansion board header (and to the secondary bridge). This bus has
- never been used in practice.
-
- The 1ary onboard PCI-PCI bridge is device 3 on bus 0
- The 2ary onboard PCI-PCI bridge is device 0 on the 2ary bus of the 1ary bridge.
- */
-
- struct slot_pin {
- int slot;
- int pin;
- } path[4];
- int i=0;
-
- while (dev->bus->number > 0) {
-
- slot = path[i].slot = PCI_SLOT(dev->devfn);
- pin = path[i].pin = bridge_swizzle(pin, slot);
- dev = dev->bus->self;
- i++;
- if (i > 3) panic("PCI path to root bus too long!\n");
- }
-
- slot = PCI_SLOT(dev->devfn);
- /* This is the slot on bus 0 through which the device is eventually
- reachable. */
-
- /* Now work back up. */
- if ((slot < 3) || (i == 0)) {
- /* Bus 0 (incl. PCI-PCI bridge itself) : perform the final
- swizzle now. */
- result = IRQ_INTA + bridge_swizzle(pin, slot) - 1;
- } else {
- i--;
- slot = path[i].slot;
- pin = path[i].pin;
- if (slot > 0) {
- panic("PCI expansion bus device found - not handled!\n");
- } else {
- if (i > 0) {
- /* 5V slots */
- i--;
- slot = path[i].slot;
- pin = path[i].pin;
- /* 'pin' was swizzled earlier wrt slot, don't do it again. */
- result = IRQ_P2INTA + (pin - 1);
- } else {
- /* IRQ for 2ary PCI-PCI bridge : unused */
- result = -1;
- }
- }
- }
-
- return result;
-}
-
-static irqreturn_t pcish5_err_irq(int irq, void *dev_id)
-{
- struct pt_regs *regs = get_irq_regs();
- unsigned pci_int, pci_air, pci_cir, pci_aint;
-
- pci_int = SH5PCI_READ(INT);
- pci_cir = SH5PCI_READ(CIR);
- pci_air = SH5PCI_READ(AIR);
-
- if (pci_int) {
- printk("PCI INTERRUPT (at %08llx)!\n", regs->pc);
- printk("PCI INT -> 0x%x\n", pci_int & 0xffff);
- printk("PCI AIR -> 0x%x\n", pci_air);
- printk("PCI CIR -> 0x%x\n", pci_cir);
- SH5PCI_WRITE(INT, ~0);
- }
-
- pci_aint = SH5PCI_READ(AINT);
- if (pci_aint) {
- printk("PCI ARB INTERRUPT!\n");
- printk("PCI AINT -> 0x%x\n", pci_aint);
- printk("PCI AIR -> 0x%x\n", pci_air);
- printk("PCI CIR -> 0x%x\n", pci_cir);
- SH5PCI_WRITE(AINT, ~0);
- }
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t pcish5_serr_irq(int irq, void *dev_id)
-{
- printk("SERR IRQ\n");
-
- return IRQ_NONE;
-}
-
-static void __init
-pcibios_size_bridge(struct pci_bus *bus, struct resource *ior,
- struct resource *memr)
-{
- struct resource io_res, mem_res;
- struct pci_dev *dev;
- struct pci_dev *bridge = bus->self;
- struct list_head *ln;
-
- if (!bridge)
- return; /* host bridge, nothing to do */
-
- /* set reasonable default locations for pcibios_align_resource */
- io_res.start = PCIBIOS_MIN_IO;
- mem_res.start = PCIBIOS_MIN_MEM;
-
- io_res.end = io_res.start;
- mem_res.end = mem_res.start;
-
- /* Collect information about how our direct children are layed out. */
- for (ln=bus->devices.next; ln != &bus->devices; ln=ln->next) {
- int i;
- dev = pci_dev_b(ln);
-
- /* Skip bridges for now */
- if (dev->class >> 8 == PCI_CLASS_BRIDGE_PCI)
- continue;
-
- for (i = 0; i < PCI_NUM_RESOURCES; i++) {
- struct resource res;
- unsigned long size;
-
- memcpy(&res, &dev->resource[i], sizeof(res));
- size = res.end - res.start + 1;
-
- if (res.flags & IORESOURCE_IO) {
- res.start = io_res.end;
- pcibios_align_resource(dev, &res, size, 0);
- io_res.end = res.start + size;
- } else if (res.flags & IORESOURCE_MEM) {
- res.start = mem_res.end;
- pcibios_align_resource(dev, &res, size, 0);
- mem_res.end = res.start + size;
- }
- }
- }
-
- /* And for all of the subordinate busses. */
- for (ln=bus->children.next; ln != &bus->children; ln=ln->next)
- pcibios_size_bridge(pci_bus_b(ln), &io_res, &mem_res);
-
- /* turn the ending locations into sizes (subtract start) */
- io_res.end -= io_res.start;
- mem_res.end -= mem_res.start;
-
- /* Align the sizes up by bridge rules */
- io_res.end = ALIGN(io_res.end, 4*1024) - 1;
- mem_res.end = ALIGN(mem_res.end, 1*1024*1024) - 1;
-
- /* Adjust the bridge's allocation requirements */
- bridge->resource[0].end = bridge->resource[0].start + io_res.end;
- bridge->resource[1].end = bridge->resource[1].start + mem_res.end;
-
- bridge->resource[PCI_BRIDGE_RESOURCES].end =
- bridge->resource[PCI_BRIDGE_RESOURCES].start + io_res.end;
- bridge->resource[PCI_BRIDGE_RESOURCES+1].end =
- bridge->resource[PCI_BRIDGE_RESOURCES+1].start + mem_res.end;
-
- /* adjust parent's resource requirements */
- if (ior) {
- ior->end = ALIGN(ior->end, 4*1024);
- ior->end += io_res.end;
- }
-
- if (memr) {
- memr->end = ALIGN(memr->end, 1*1024*1024);
- memr->end += mem_res.end;
- }
-}
-
-static void __init pcibios_size_bridges(void)
-{
- struct resource io_res, mem_res;
-
- memset(&io_res, 0, sizeof(io_res));
- memset(&mem_res, 0, sizeof(mem_res));
-
- pcibios_size_bridge(pci_root_bus, &io_res, &mem_res);
-}
-
-static int __init pcibios_init(void)
-{
- if (request_irq(IRQ_ERR, pcish5_err_irq,
- IRQF_DISABLED, "PCI Error",NULL) < 0) {
- printk(KERN_ERR "PCISH5: Cannot hook PCI_PERR interrupt\n");
- return -EINVAL;
- }
-
- if (request_irq(IRQ_SERR, pcish5_serr_irq,
- IRQF_DISABLED, "PCI SERR interrupt", NULL) < 0) {
- printk(KERN_ERR "PCISH5: Cannot hook PCI_SERR interrupt\n");
- return -EINVAL;
- }
-
- /* The pci subsystem needs to know where memory is and how much
- * of it there is. I've simply made these globals. A better mechanism
- * is probably needed.
- */
- sh5pci_init(__pa(memory_start),
- __pa(memory_end) - __pa(memory_start));
-
- pci_root_bus = pci_scan_bus(0, &pci_config_ops, NULL);
- pcibios_size_bridges();
- pci_assign_unassigned_resources();
- pci_fixup_irqs(no_swizzle, map_cayman_irq);
-
- return 0;
-}
-
-subsys_initcall(pcibios_init);
-
-void __devinit pcibios_fixup_bus(struct pci_bus *bus)
-{
- struct pci_dev *dev = bus->self;
- int i;
-
-#if 1
- if(dev) {
- for(i=0; i<3; i++) {
- bus->resource[i] =
- &dev->resource[PCI_BRIDGE_RESOURCES+i];
- bus->resource[i]->name = bus->name;
- }
- bus->resource[0]->flags |= IORESOURCE_IO;
- bus->resource[1]->flags |= IORESOURCE_MEM;
-
- /* For now, propagate host limits to the bus;
- * we'll adjust them later. */
-
-#if 1
- bus->resource[0]->end = 64*1024 - 1 ;
- bus->resource[1]->end = PCIBIOS_MIN_MEM+(256*1024*1024)-1;
- bus->resource[0]->start = PCIBIOS_MIN_IO;
- bus->resource[1]->start = PCIBIOS_MIN_MEM;
-#else
- bus->resource[0]->end = 0;
- bus->resource[1]->end = 0;
- bus->resource[0]->start =0;
- bus->resource[1]->start = 0;
-#endif
- /* Turn off downstream PF memory address range by default */
- bus->resource[2]->start = 1024*1024;
- bus->resource[2]->end = bus->resource[2]->start - 1;
- }
-#endif
-
-}
-
diff --git a/arch/sh64/kernel/pci_sh5.h b/arch/sh64/kernel/pci_sh5.h
deleted file mode 100644
index c71159dd04b..00000000000
--- a/arch/sh64/kernel/pci_sh5.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright (C) 2001 David J. Mckay (david.mckay@st.com)
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * Definitions for the SH5 PCI hardware.
- */
-
-/* Product ID */
-#define PCISH5_PID 0x350d
-
-/* vendor ID */
-#define PCISH5_VID 0x1054
-
-/* Configuration types */
-#define ST_TYPE0 0x00 /* Configuration cycle type 0 */
-#define ST_TYPE1 0x01 /* Configuration cycle type 1 */
-
-/* VCR data */
-#define PCISH5_VCR_STATUS 0x00
-#define PCISH5_VCR_VERSION 0x08
-
-/*
-** ICR register offsets and bits
-*/
-#define PCISH5_ICR_CR 0x100 /* PCI control register values */
-#define CR_PBAM (1<<12)
-#define CR_PFCS (1<<11)
-#define CR_FTO (1<<10)
-#define CR_PFE (1<<9)
-#define CR_TBS (1<<8)
-#define CR_SPUE (1<<7)
-#define CR_BMAM (1<<6)
-#define CR_HOST (1<<5)
-#define CR_CLKEN (1<<4)
-#define CR_SOCS (1<<3)
-#define CR_IOCS (1<<2)
-#define CR_RSTCTL (1<<1)
-#define CR_CFINT (1<<0)
-#define CR_LOCK_MASK 0xa5000000
-
-#define PCISH5_ICR_INT 0x114 /* Interrupt registert values */
-#define INT_MADIM (1<<2)
-
-#define PCISH5_ICR_LSR0 0X104 /* Local space register values */
-#define PCISH5_ICR_LSR1 0X108 /* Local space register values */
-#define PCISH5_ICR_LAR0 0x10c /* Local address register values */
-#define PCISH5_ICR_LAR1 0x110 /* Local address register values */
-#define PCISH5_ICR_INTM 0x118 /* Interrupt mask register values */
-#define PCISH5_ICR_AIR 0x11c /* Interrupt error address information register values */
-#define PCISH5_ICR_CIR 0x120 /* Interrupt error command information register values */
-#define PCISH5_ICR_AINT 0x130 /* Interrupt error arbiter interrupt register values */
-#define PCISH5_ICR_AINTM 0x134 /* Interrupt error arbiter interrupt mask register values */
-#define PCISH5_ICR_BMIR 0x138 /* Interrupt error info register of bus master values */
-#define PCISH5_ICR_PAR 0x1c0 /* Pio address register values */
-#define PCISH5_ICR_MBR 0x1c4 /* Memory space bank register values */
-#define PCISH5_ICR_IOBR 0x1c8 /* I/O space bank register values */
-#define PCISH5_ICR_PINT 0x1cc /* power management interrupt register values */
-#define PCISH5_ICR_PINTM 0x1d0 /* power management interrupt mask register values */
-#define PCISH5_ICR_MBMR 0x1d8 /* memory space bank mask register values */
-#define PCISH5_ICR_IOBMR 0x1dc /* I/O space bank mask register values */
-#define PCISH5_ICR_CSCR0 0x210 /* PCI cache snoop control register 0 */
-#define PCISH5_ICR_CSCR1 0x214 /* PCI cache snoop control register 1 */
-#define PCISH5_ICR_PDR 0x220 /* Pio data register values */
-
-/* These are configs space registers */
-#define PCISH5_ICR_CSR_VID 0x000 /* Vendor id */
-#define PCISH5_ICR_CSR_DID 0x002 /* Device id */
-#define PCISH5_ICR_CSR_CMD 0x004 /* Command register */
-#define PCISH5_ICR_CSR_STATUS 0x006 /* Stautus */
-#define PCISH5_ICR_CSR_IBAR0 0x010 /* I/O base address register */
-#define PCISH5_ICR_CSR_MBAR0 0x014 /* First Memory base address register */
-#define PCISH5_ICR_CSR_MBAR1 0x018 /* Second Memory base address register */
-
-
-
-/* Base address of registers */
-#define SH5PCI_ICR_BASE (PHYS_PCI_BLOCK + 0x00040000)
-#define SH5PCI_IO_BASE (PHYS_PCI_BLOCK + 0x00800000)
-/* #define SH5PCI_VCR_BASE (P2SEG_PCICB_BLOCK + P2SEG) */
-
-/* Register selection macro */
-#define PCISH5_ICR_REG(x) ( pcicr_virt + (PCISH5_ICR_##x))
-/* #define PCISH5_VCR_REG(x) ( SH5PCI_VCR_BASE (PCISH5_VCR_##x)) */
-
-/* Write I/O functions */
-#define SH5PCI_WRITE(reg,val) ctrl_outl((u32)(val),PCISH5_ICR_REG(reg))
-#define SH5PCI_WRITE_SHORT(reg,val) ctrl_outw((u16)(val),PCISH5_ICR_REG(reg))
-#define SH5PCI_WRITE_BYTE(reg,val) ctrl_outb((u8)(val),PCISH5_ICR_REG(reg))
-
-/* Read I/O functions */
-#define SH5PCI_READ(reg) ctrl_inl(PCISH5_ICR_REG(reg))
-#define SH5PCI_READ_SHORT(reg) ctrl_inw(PCISH5_ICR_REG(reg))
-#define SH5PCI_READ_BYTE(reg) ctrl_inb(PCISH5_ICR_REG(reg))
-
-/* Set PCI config bits */
-#define SET_CONFIG_BITS(bus,devfn,where) ((((bus) << 16) | ((devfn) << 8) | ((where) & ~3)) | 0x80000000)
-
-/* Set PCI command register */
-#define CONFIG_CMD(bus, devfn, where) SET_CONFIG_BITS(bus->number,devfn,where)
-
-/* Size converters */
-#define PCISH5_MEM_SIZCONV(x) (((x / 0x40000) - 1) << 18)
-#define PCISH5_IO_SIZCONV(x) (((x / 0x40000) - 1) << 18)
-
-
diff --git a/arch/sh64/kernel/pcibios.c b/arch/sh64/kernel/pcibios.c
deleted file mode 100644
index 945920bc24d..00000000000
--- a/arch/sh64/kernel/pcibios.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * $Id: pcibios.c,v 1.1 2001/08/24 12:38:19 dwmw2 Exp $
- *
- * arch/sh/kernel/pcibios.c
- *
- * Copyright (C) 2002 STMicroelectronics Limited
- * Author : David J. McKay
- *
- * Copyright (C) 2004 Richard Curnow, SuperH UK Limited
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- * This is GPL'd.
- *
- * Provided here are generic versions of:
- * pcibios_update_resource()
- * pcibios_align_resource()
- * pcibios_enable_device()
- * pcibios_set_master()
- * pcibios_update_irq()
- *
- * These functions are collected here to reduce duplication of common
- * code amongst the many platform-specific PCI support code files.
- *
- * Platform-specific files are expected to provide:
- * pcibios_fixup_bus()
- * pcibios_init()
- * pcibios_setup()
- * pcibios_fixup_pbus_ranges()
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-
-void
-pcibios_update_resource(struct pci_dev *dev, struct resource *root,
- struct resource *res, int resource)
-{
- u32 new, check;
- int reg;
-
- new = res->start | (res->flags & PCI_REGION_FLAG_MASK);
- if (resource < 6) {
- reg = PCI_BASE_ADDRESS_0 + 4*resource;
- } else if (resource == PCI_ROM_RESOURCE) {
- res->flags |= IORESOURCE_ROM_ENABLE;
- new |= PCI_ROM_ADDRESS_ENABLE;
- reg = dev->rom_base_reg;
- } else {
- /* Somebody might have asked allocation of a non-standard resource */
- return;
- }
-
- pci_write_config_dword(dev, reg, new);
- pci_read_config_dword(dev, reg, &check);
- if ((new ^ check) & ((new & PCI_BASE_ADDRESS_SPACE_IO) ? PCI_BASE_ADDRESS_IO_MASK : PCI_BASE_ADDRESS_MEM_MASK)) {
- printk(KERN_ERR "PCI: Error while updating region "
- "%s/%d (%08x != %08x)\n", pci_name(dev), resource,
- new, check);
- }
-}
-
-/*
- * We need to avoid collisions with `mirrored' VGA ports
- * and other strange ISA hardware, so we always want the
- * addresses to be allocated in the 0x000-0x0ff region
- * modulo 0x400.
- */
-void pcibios_align_resource(void *data, struct resource *res,
- resource_size_t size, resource_size_t align)
-{
- if (res->flags & IORESOURCE_IO) {
- resource_size_t start = res->start;
-
- if (start & 0x300) {
- start = (start + 0x3ff) & ~0x3ff;
- res->start = start;
- }
- }
-}
-
-static void pcibios_enable_bridge(struct pci_dev *dev)
-{
- struct pci_bus *bus = dev->subordinate;
- u16 cmd, old_cmd;
-
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
- old_cmd = cmd;
-
- if (bus->resource[0]->flags & IORESOURCE_IO) {
- cmd |= PCI_COMMAND_IO;
- }
- if ((bus->resource[1]->flags & IORESOURCE_MEM) ||
- (bus->resource[2]->flags & IORESOURCE_PREFETCH)) {
- cmd |= PCI_COMMAND_MEMORY;
- }
-
- if (cmd != old_cmd) {
- pci_write_config_word(dev, PCI_COMMAND, cmd);
- }
-
- printk("PCI bridge %s, command register -> %04x\n",
- pci_name(dev), cmd);
-
-}
-
-
-
-int pcibios_enable_device(struct pci_dev *dev, int mask)
-{
- u16 cmd, old_cmd;
- int idx;
- struct resource *r;
-
- if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) {
- pcibios_enable_bridge(dev);
- }
-
- pci_read_config_word(dev, PCI_COMMAND, &cmd);
- old_cmd = cmd;
- for(idx=0; idx<6; idx++) {
- if (!(mask & (1 << idx)))
- continue;
- r = &dev->resource[idx];
- if (!r->start && r->end) {
- printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", pci_name(dev));
- return -EINVAL;
- }
- if (r->flags & IORESOURCE_IO)
- cmd |= PCI_COMMAND_IO;
- if (r->flags & IORESOURCE_MEM)
- cmd |= PCI_COMMAND_MEMORY;
- }
- if (dev->resource[PCI_ROM_RESOURCE].start)
- cmd |= PCI_COMMAND_MEMORY;
- if (cmd != old_cmd) {
- printk(KERN_INFO "PCI: Enabling device %s (%04x -> %04x)\n", pci_name(dev), old_cmd, cmd);
- pci_write_config_word(dev, PCI_COMMAND, cmd);
- }
- return 0;
-}
-
-/*
- * If we set up a device for bus mastering, we need to check and set
- * the latency timer as it may not be properly set.
- */
-unsigned int pcibios_max_latency = 255;
-
-void pcibios_set_master(struct pci_dev *dev)
-{
- u8 lat;
- pci_read_config_byte(dev, PCI_LATENCY_TIMER, &lat);
- if (lat < 16)
- lat = (64 <= pcibios_max_latency) ? 64 : pcibios_max_latency;
- else if (lat > pcibios_max_latency)
- lat = pcibios_max_latency;
- else
- return;
- printk(KERN_INFO "PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat);
- pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
-}
-
-void __init pcibios_update_irq(struct pci_dev *dev, int irq)
-{
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq);
-}
diff --git a/arch/sh64/kernel/process.c b/arch/sh64/kernel/process.c
deleted file mode 100644
index 0761af4d2a4..00000000000
--- a/arch/sh64/kernel/process.c
+++ /dev/null
@@ -1,691 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/process.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- * Started from SH3/4 version:
- * Copyright (C) 1999, 2000 Niibe Yutaka & Kaz Kojima
- *
- * In turn started from i386 version:
- * Copyright (C) 1995 Linus Torvalds
- *
- */
-
-/*
- * This file handles the architecture-dependent parts of process handling..
- */
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/ptrace.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/proc_fs.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-struct task_struct *last_task_used_math = NULL;
-
-static int hlt_counter = 1;
-
-#define HARD_IDLE_TIMEOUT (HZ / 3)
-
-void disable_hlt(void)
-{
- hlt_counter++;
-}
-
-void enable_hlt(void)
-{
- hlt_counter--;
-}
-
-static int __init nohlt_setup(char *__unused)
-{
- hlt_counter = 1;
- return 1;
-}
-
-static int __init hlt_setup(char *__unused)
-{
- hlt_counter = 0;
- return 1;
-}
-
-__setup("nohlt", nohlt_setup);
-__setup("hlt", hlt_setup);
-
-static inline void hlt(void)
-{
- __asm__ __volatile__ ("sleep" : : : "memory");
-}
-
-/*
- * The idle loop on a uniprocessor SH..
- */
-void cpu_idle(void)
-{
- /* endless idle loop with no priority at all */
- while (1) {
- if (hlt_counter) {
- while (!need_resched())
- cpu_relax();
- } else {
- local_irq_disable();
- while (!need_resched()) {
- local_irq_enable();
- hlt();
- local_irq_disable();
- }
- local_irq_enable();
- }
- preempt_enable_no_resched();
- schedule();
- preempt_disable();
- }
-
-}
-
-void machine_restart(char * __unused)
-{
- extern void phys_stext(void);
-
- phys_stext();
-}
-
-void machine_halt(void)
-{
- for (;;);
-}
-
-void machine_power_off(void)
-{
- extern void enter_deep_standby(void);
-
- enter_deep_standby();
-}
-
-void (*pm_power_off)(void) = machine_power_off;
-EXPORT_SYMBOL(pm_power_off);
-
-void show_regs(struct pt_regs * regs)
-{
- unsigned long long ah, al, bh, bl, ch, cl;
-
- printk("\n");
-
- ah = (regs->pc) >> 32;
- al = (regs->pc) & 0xffffffff;
- bh = (regs->regs[18]) >> 32;
- bl = (regs->regs[18]) & 0xffffffff;
- ch = (regs->regs[15]) >> 32;
- cl = (regs->regs[15]) & 0xffffffff;
- printk("PC : %08Lx%08Lx LINK: %08Lx%08Lx SP : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->sr) >> 32;
- al = (regs->sr) & 0xffffffff;
- asm volatile ("getcon " __TEA ", %0" : "=r" (bh));
- asm volatile ("getcon " __TEA ", %0" : "=r" (bl));
- bh = (bh) >> 32;
- bl = (bl) & 0xffffffff;
- asm volatile ("getcon " __KCR0 ", %0" : "=r" (ch));
- asm volatile ("getcon " __KCR0 ", %0" : "=r" (cl));
- ch = (ch) >> 32;
- cl = (cl) & 0xffffffff;
- printk("SR : %08Lx%08Lx TEA : %08Lx%08Lx KCR0: %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[0]) >> 32;
- al = (regs->regs[0]) & 0xffffffff;
- bh = (regs->regs[1]) >> 32;
- bl = (regs->regs[1]) & 0xffffffff;
- ch = (regs->regs[2]) >> 32;
- cl = (regs->regs[2]) & 0xffffffff;
- printk("R0 : %08Lx%08Lx R1 : %08Lx%08Lx R2 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[3]) >> 32;
- al = (regs->regs[3]) & 0xffffffff;
- bh = (regs->regs[4]) >> 32;
- bl = (regs->regs[4]) & 0xffffffff;
- ch = (regs->regs[5]) >> 32;
- cl = (regs->regs[5]) & 0xffffffff;
- printk("R3 : %08Lx%08Lx R4 : %08Lx%08Lx R5 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[6]) >> 32;
- al = (regs->regs[6]) & 0xffffffff;
- bh = (regs->regs[7]) >> 32;
- bl = (regs->regs[7]) & 0xffffffff;
- ch = (regs->regs[8]) >> 32;
- cl = (regs->regs[8]) & 0xffffffff;
- printk("R6 : %08Lx%08Lx R7 : %08Lx%08Lx R8 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[9]) >> 32;
- al = (regs->regs[9]) & 0xffffffff;
- bh = (regs->regs[10]) >> 32;
- bl = (regs->regs[10]) & 0xffffffff;
- ch = (regs->regs[11]) >> 32;
- cl = (regs->regs[11]) & 0xffffffff;
- printk("R9 : %08Lx%08Lx R10 : %08Lx%08Lx R11 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[12]) >> 32;
- al = (regs->regs[12]) & 0xffffffff;
- bh = (regs->regs[13]) >> 32;
- bl = (regs->regs[13]) & 0xffffffff;
- ch = (regs->regs[14]) >> 32;
- cl = (regs->regs[14]) & 0xffffffff;
- printk("R12 : %08Lx%08Lx R13 : %08Lx%08Lx R14 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[16]) >> 32;
- al = (regs->regs[16]) & 0xffffffff;
- bh = (regs->regs[17]) >> 32;
- bl = (regs->regs[17]) & 0xffffffff;
- ch = (regs->regs[19]) >> 32;
- cl = (regs->regs[19]) & 0xffffffff;
- printk("R16 : %08Lx%08Lx R17 : %08Lx%08Lx R19 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[20]) >> 32;
- al = (regs->regs[20]) & 0xffffffff;
- bh = (regs->regs[21]) >> 32;
- bl = (regs->regs[21]) & 0xffffffff;
- ch = (regs->regs[22]) >> 32;
- cl = (regs->regs[22]) & 0xffffffff;
- printk("R20 : %08Lx%08Lx R21 : %08Lx%08Lx R22 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[23]) >> 32;
- al = (regs->regs[23]) & 0xffffffff;
- bh = (regs->regs[24]) >> 32;
- bl = (regs->regs[24]) & 0xffffffff;
- ch = (regs->regs[25]) >> 32;
- cl = (regs->regs[25]) & 0xffffffff;
- printk("R23 : %08Lx%08Lx R24 : %08Lx%08Lx R25 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[26]) >> 32;
- al = (regs->regs[26]) & 0xffffffff;
- bh = (regs->regs[27]) >> 32;
- bl = (regs->regs[27]) & 0xffffffff;
- ch = (regs->regs[28]) >> 32;
- cl = (regs->regs[28]) & 0xffffffff;
- printk("R26 : %08Lx%08Lx R27 : %08Lx%08Lx R28 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[29]) >> 32;
- al = (regs->regs[29]) & 0xffffffff;
- bh = (regs->regs[30]) >> 32;
- bl = (regs->regs[30]) & 0xffffffff;
- ch = (regs->regs[31]) >> 32;
- cl = (regs->regs[31]) & 0xffffffff;
- printk("R29 : %08Lx%08Lx R30 : %08Lx%08Lx R31 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[32]) >> 32;
- al = (regs->regs[32]) & 0xffffffff;
- bh = (regs->regs[33]) >> 32;
- bl = (regs->regs[33]) & 0xffffffff;
- ch = (regs->regs[34]) >> 32;
- cl = (regs->regs[34]) & 0xffffffff;
- printk("R32 : %08Lx%08Lx R33 : %08Lx%08Lx R34 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[35]) >> 32;
- al = (regs->regs[35]) & 0xffffffff;
- bh = (regs->regs[36]) >> 32;
- bl = (regs->regs[36]) & 0xffffffff;
- ch = (regs->regs[37]) >> 32;
- cl = (regs->regs[37]) & 0xffffffff;
- printk("R35 : %08Lx%08Lx R36 : %08Lx%08Lx R37 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[38]) >> 32;
- al = (regs->regs[38]) & 0xffffffff;
- bh = (regs->regs[39]) >> 32;
- bl = (regs->regs[39]) & 0xffffffff;
- ch = (regs->regs[40]) >> 32;
- cl = (regs->regs[40]) & 0xffffffff;
- printk("R38 : %08Lx%08Lx R39 : %08Lx%08Lx R40 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[41]) >> 32;
- al = (regs->regs[41]) & 0xffffffff;
- bh = (regs->regs[42]) >> 32;
- bl = (regs->regs[42]) & 0xffffffff;
- ch = (regs->regs[43]) >> 32;
- cl = (regs->regs[43]) & 0xffffffff;
- printk("R41 : %08Lx%08Lx R42 : %08Lx%08Lx R43 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[44]) >> 32;
- al = (regs->regs[44]) & 0xffffffff;
- bh = (regs->regs[45]) >> 32;
- bl = (regs->regs[45]) & 0xffffffff;
- ch = (regs->regs[46]) >> 32;
- cl = (regs->regs[46]) & 0xffffffff;
- printk("R44 : %08Lx%08Lx R45 : %08Lx%08Lx R46 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[47]) >> 32;
- al = (regs->regs[47]) & 0xffffffff;
- bh = (regs->regs[48]) >> 32;
- bl = (regs->regs[48]) & 0xffffffff;
- ch = (regs->regs[49]) >> 32;
- cl = (regs->regs[49]) & 0xffffffff;
- printk("R47 : %08Lx%08Lx R48 : %08Lx%08Lx R49 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[50]) >> 32;
- al = (regs->regs[50]) & 0xffffffff;
- bh = (regs->regs[51]) >> 32;
- bl = (regs->regs[51]) & 0xffffffff;
- ch = (regs->regs[52]) >> 32;
- cl = (regs->regs[52]) & 0xffffffff;
- printk("R50 : %08Lx%08Lx R51 : %08Lx%08Lx R52 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[53]) >> 32;
- al = (regs->regs[53]) & 0xffffffff;
- bh = (regs->regs[54]) >> 32;
- bl = (regs->regs[54]) & 0xffffffff;
- ch = (regs->regs[55]) >> 32;
- cl = (regs->regs[55]) & 0xffffffff;
- printk("R53 : %08Lx%08Lx R54 : %08Lx%08Lx R55 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[56]) >> 32;
- al = (regs->regs[56]) & 0xffffffff;
- bh = (regs->regs[57]) >> 32;
- bl = (regs->regs[57]) & 0xffffffff;
- ch = (regs->regs[58]) >> 32;
- cl = (regs->regs[58]) & 0xffffffff;
- printk("R56 : %08Lx%08Lx R57 : %08Lx%08Lx R58 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[59]) >> 32;
- al = (regs->regs[59]) & 0xffffffff;
- bh = (regs->regs[60]) >> 32;
- bl = (regs->regs[60]) & 0xffffffff;
- ch = (regs->regs[61]) >> 32;
- cl = (regs->regs[61]) & 0xffffffff;
- printk("R59 : %08Lx%08Lx R60 : %08Lx%08Lx R61 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->regs[62]) >> 32;
- al = (regs->regs[62]) & 0xffffffff;
- bh = (regs->tregs[0]) >> 32;
- bl = (regs->tregs[0]) & 0xffffffff;
- ch = (regs->tregs[1]) >> 32;
- cl = (regs->tregs[1]) & 0xffffffff;
- printk("R62 : %08Lx%08Lx T0 : %08Lx%08Lx T1 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->tregs[2]) >> 32;
- al = (regs->tregs[2]) & 0xffffffff;
- bh = (regs->tregs[3]) >> 32;
- bl = (regs->tregs[3]) & 0xffffffff;
- ch = (regs->tregs[4]) >> 32;
- cl = (regs->tregs[4]) & 0xffffffff;
- printk("T2 : %08Lx%08Lx T3 : %08Lx%08Lx T4 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- ah = (regs->tregs[5]) >> 32;
- al = (regs->tregs[5]) & 0xffffffff;
- bh = (regs->tregs[6]) >> 32;
- bl = (regs->tregs[6]) & 0xffffffff;
- ch = (regs->tregs[7]) >> 32;
- cl = (regs->tregs[7]) & 0xffffffff;
- printk("T5 : %08Lx%08Lx T6 : %08Lx%08Lx T7 : %08Lx%08Lx\n",
- ah, al, bh, bl, ch, cl);
-
- /*
- * If we're in kernel mode, dump the stack too..
- */
- if (!user_mode(regs)) {
- void show_stack(struct task_struct *tsk, unsigned long *sp);
- unsigned long sp = regs->regs[15] & 0xffffffff;
- struct task_struct *tsk = get_current();
-
- tsk->thread.kregs = regs;
-
- show_stack(tsk, (unsigned long *)sp);
- }
-}
-
-struct task_struct * alloc_task_struct(void)
-{
- /* Get task descriptor pages */
- return (struct task_struct *)
- __get_free_pages(GFP_KERNEL, get_order(THREAD_SIZE));
-}
-
-void free_task_struct(struct task_struct *p)
-{
- free_pages((unsigned long) p, get_order(THREAD_SIZE));
-}
-
-/*
- * Create a kernel thread
- */
-ATTRIB_NORET void kernel_thread_helper(void *arg, int (*fn)(void *))
-{
- do_exit(fn(arg));
-}
-
-/*
- * This is the mechanism for creating a new kernel thread.
- *
- * NOTE! Only a kernel-only process(ie the swapper or direct descendants
- * who haven't done an "execve()") should use this: it will work within
- * a system call from a "real" process, but the process memory space will
- * not be freed until both the parent and the child have exited.
- */
-int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
-{
- struct pt_regs regs;
-
- memset(&regs, 0, sizeof(regs));
- regs.regs[2] = (unsigned long)arg;
- regs.regs[3] = (unsigned long)fn;
-
- regs.pc = (unsigned long)kernel_thread_helper;
- regs.sr = (1 << 30);
-
- return do_fork(flags | CLONE_VM | CLONE_UNTRACED, 0,
- &regs, 0, NULL, NULL);
-}
-
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(void)
-{
- /* See arch/sparc/kernel/process.c for the precedent for doing this -- RPC.
-
- The SH-5 FPU save/restore approach relies on last_task_used_math
- pointing to a live task_struct. When another task tries to use the
- FPU for the 1st time, the FPUDIS trap handling (see
- arch/sh64/kernel/fpu.c) will save the existing FPU state to the
- FP regs field within last_task_used_math before re-loading the new
- task's FPU state (or initialising it if the FPU has been used
- before). So if last_task_used_math is stale, and its page has already been
- re-allocated for another use, the consequences are rather grim. Unless we
- null it here, there is no other path through which it would get safely
- nulled. */
-
-#ifdef CONFIG_SH_FPU
- if (last_task_used_math == current) {
- last_task_used_math = NULL;
- }
-#endif
-}
-
-void flush_thread(void)
-{
-
- /* Called by fs/exec.c (flush_old_exec) to remove traces of a
- * previously running executable. */
-#ifdef CONFIG_SH_FPU
- if (last_task_used_math == current) {
- last_task_used_math = NULL;
- }
- /* Force FPU state to be reinitialised after exec */
- clear_used_math();
-#endif
-
- /* if we are a kernel thread, about to change to user thread,
- * update kreg
- */
- if(current->thread.kregs==&fake_swapper_regs) {
- current->thread.kregs =
- ((struct pt_regs *)(THREAD_SIZE + (unsigned long) current) - 1);
- current->thread.uregs = current->thread.kregs;
- }
-}
-
-void release_thread(struct task_struct *dead_task)
-{
- /* do nothing */
-}
-
-/* Fill in the fpu structure for a core dump.. */
-int dump_fpu(struct pt_regs *regs, elf_fpregset_t *fpu)
-{
-#ifdef CONFIG_SH_FPU
- int fpvalid;
- struct task_struct *tsk = current;
-
- fpvalid = !!tsk_used_math(tsk);
- if (fpvalid) {
- if (current == last_task_used_math) {
- grab_fpu();
- fpsave(&tsk->thread.fpu.hard);
- release_fpu();
- last_task_used_math = 0;
- regs->sr |= SR_FD;
- }
-
- memcpy(fpu, &tsk->thread.fpu.hard, sizeof(*fpu));
- }
-
- return fpvalid;
-#else
- return 0; /* Task didn't use the fpu at all. */
-#endif
-}
-
-asmlinkage void ret_from_fork(void);
-
-int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
- unsigned long unused,
- struct task_struct *p, struct pt_regs *regs)
-{
- struct pt_regs *childregs;
- unsigned long long se; /* Sign extension */
-
-#ifdef CONFIG_SH_FPU
- if(last_task_used_math == current) {
- grab_fpu();
- fpsave(&current->thread.fpu.hard);
- release_fpu();
- last_task_used_math = NULL;
- regs->sr |= SR_FD;
- }
-#endif
- /* Copy from sh version */
- childregs = (struct pt_regs *)(THREAD_SIZE + task_stack_page(p)) - 1;
-
- *childregs = *regs;
-
- if (user_mode(regs)) {
- childregs->regs[15] = usp;
- p->thread.uregs = childregs;
- } else {
- childregs->regs[15] = (unsigned long)task_stack_page(p) + THREAD_SIZE;
- }
-
- childregs->regs[9] = 0; /* Set return value for child */
- childregs->sr |= SR_FD; /* Invalidate FPU flag */
-
- p->thread.sp = (unsigned long) childregs;
- p->thread.pc = (unsigned long) ret_from_fork;
-
- /*
- * Sign extend the edited stack.
- * Note that thread.pc and thread.pc will stay
- * 32-bit wide and context switch must take care
- * of NEFF sign extension.
- */
-
- se = childregs->regs[15];
- se = (se & NEFF_SIGN) ? (se | NEFF_MASK) : se;
- childregs->regs[15] = se;
-
- return 0;
-}
-
-asmlinkage int sys_fork(unsigned long r2, unsigned long r3,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs *pregs)
-{
- return do_fork(SIGCHLD, pregs->regs[15], pregs, 0, 0, 0);
-}
-
-asmlinkage int sys_clone(unsigned long clone_flags, unsigned long newsp,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs *pregs)
-{
- if (!newsp)
- newsp = pregs->regs[15];
- return do_fork(clone_flags, newsp, pregs, 0, 0, 0);
-}
-
-/*
- * This is trivial, and on the face of it looks like it
- * could equally well be done in user mode.
- *
- * Not so, for quite unobvious reasons - register pressure.
- * In user mode vfork() cannot have a stack frame, and if
- * done by calling the "clone()" system call directly, you
- * do not have enough call-clobbered registers to hold all
- * the information you need.
- */
-asmlinkage int sys_vfork(unsigned long r2, unsigned long r3,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs *pregs)
-{
- return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, pregs->regs[15], pregs, 0, 0, 0);
-}
-
-/*
- * sys_execve() executes a new program.
- */
-asmlinkage int sys_execve(char *ufilename, char **uargv,
- char **uenvp, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs *pregs)
-{
- int error;
- char *filename;
-
- lock_kernel();
- filename = getname((char __user *)ufilename);
- error = PTR_ERR(filename);
- if (IS_ERR(filename))
- goto out;
-
- error = do_execve(filename,
- (char __user * __user *)uargv,
- (char __user * __user *)uenvp,
- pregs);
- if (error == 0) {
- task_lock(current);
- current->ptrace &= ~PT_DTRACE;
- task_unlock(current);
- }
- putname(filename);
-out:
- unlock_kernel();
- return error;
-}
-
-/*
- * These bracket the sleeping functions..
- */
-extern void interruptible_sleep_on(wait_queue_head_t *q);
-
-#define mid_sched ((unsigned long) interruptible_sleep_on)
-
-static int in_sh64_switch_to(unsigned long pc)
-{
- extern char __sh64_switch_to_end;
- /* For a sleeping task, the PC is somewhere in the middle of the function,
- so we don't have to worry about masking the LSB off */
- return (pc >= (unsigned long) sh64_switch_to) &&
- (pc < (unsigned long) &__sh64_switch_to_end);
-}
-
-unsigned long get_wchan(struct task_struct *p)
-{
- unsigned long schedule_fp;
- unsigned long sh64_switch_to_fp;
- unsigned long schedule_caller_pc;
- unsigned long pc;
-
- if (!p || p == current || p->state == TASK_RUNNING)
- return 0;
-
- /*
- * The same comment as on the Alpha applies here, too ...
- */
- pc = thread_saved_pc(p);
-
-#ifdef CONFIG_FRAME_POINTER
- if (in_sh64_switch_to(pc)) {
- sh64_switch_to_fp = (long) p->thread.sp;
- /* r14 is saved at offset 4 in the sh64_switch_to frame */
- schedule_fp = *(unsigned long *) (long)(sh64_switch_to_fp + 4);
-
- /* and the caller of 'schedule' is (currently!) saved at offset 24
- in the frame of schedule (from disasm) */
- schedule_caller_pc = *(unsigned long *) (long)(schedule_fp + 24);
- return schedule_caller_pc;
- }
-#endif
- return pc;
-}
-
-/* Provide a /proc/asids file that lists out the
- ASIDs currently associated with the processes. (If the DM.PC register is
- examined through the debug link, this shows ASID + PC. To make use of this,
- the PID->ASID relationship needs to be known. This is primarily for
- debugging.)
- */
-
-#if defined(CONFIG_SH64_PROC_ASIDS)
-static int
-asids_proc_info(char *buf, char **start, off_t fpos, int length, int *eof, void *data)
-{
- int len=0;
- struct task_struct *p;
- read_lock(&tasklist_lock);
- for_each_process(p) {
- int pid = p->pid;
- struct mm_struct *mm;
- if (!pid) continue;
- mm = p->mm;
- if (mm) {
- unsigned long asid, context;
- context = mm->context;
- asid = (context & 0xff);
- len += sprintf(buf+len, "%5d : %02lx\n", pid, asid);
- } else {
- len += sprintf(buf+len, "%5d : (none)\n", pid);
- }
- }
- read_unlock(&tasklist_lock);
- *eof = 1;
- return len;
-}
-
-static int __init register_proc_asids(void)
-{
- create_proc_read_entry("asids", 0, NULL, asids_proc_info, NULL);
- return 0;
-}
-__initcall(register_proc_asids);
-#endif
diff --git a/arch/sh64/kernel/ptrace.c b/arch/sh64/kernel/ptrace.c
deleted file mode 100644
index 8a2d339cf76..00000000000
--- a/arch/sh64/kernel/ptrace.c
+++ /dev/null
@@ -1,332 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/ptrace.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- *
- * Started from SH3/4 version:
- * SuperH version: Copyright (C) 1999, 2000 Kaz Kojima & Niibe Yutaka
- *
- * Original x86 implementation:
- * By Ross Biro 1/23/92
- * edited by Linus Torvalds
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/signal.h>
-#include <linux/syscalls.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/system.h>
-#include <asm/processor.h>
-#include <asm/mmu_context.h>
-
-/* This mask defines the bits of the SR which the user is not allowed to
- change, which are everything except S, Q, M, PR, SZ, FR. */
-#define SR_MASK (0xffff8cfd)
-
-/*
- * does not yet catch signals sent when the child dies.
- * in exit.c or in signal.c.
- */
-
-/*
- * This routine will get a word from the user area in the process kernel stack.
- */
-static inline int get_stack_long(struct task_struct *task, int offset)
-{
- unsigned char *stack;
-
- stack = (unsigned char *)(task->thread.uregs);
- stack += offset;
- return (*((int *)stack));
-}
-
-static inline unsigned long
-get_fpu_long(struct task_struct *task, unsigned long addr)
-{
- unsigned long tmp;
- struct pt_regs *regs;
- regs = (struct pt_regs*)((unsigned char *)task + THREAD_SIZE) - 1;
-
- if (!tsk_used_math(task)) {
- if (addr == offsetof(struct user_fpu_struct, fpscr)) {
- tmp = FPSCR_INIT;
- } else {
- tmp = 0xffffffffUL; /* matches initial value in fpu.c */
- }
- return tmp;
- }
-
- if (last_task_used_math == task) {
- grab_fpu();
- fpsave(&task->thread.fpu.hard);
- release_fpu();
- last_task_used_math = 0;
- regs->sr |= SR_FD;
- }
-
- tmp = ((long *)&task->thread.fpu)[addr / sizeof(unsigned long)];
- return tmp;
-}
-
-/*
- * This routine will put a word into the user area in the process kernel stack.
- */
-static inline int put_stack_long(struct task_struct *task, int offset,
- unsigned long data)
-{
- unsigned char *stack;
-
- stack = (unsigned char *)(task->thread.uregs);
- stack += offset;
- *(unsigned long *) stack = data;
- return 0;
-}
-
-static inline int
-put_fpu_long(struct task_struct *task, unsigned long addr, unsigned long data)
-{
- struct pt_regs *regs;
-
- regs = (struct pt_regs*)((unsigned char *)task + THREAD_SIZE) - 1;
-
- if (!tsk_used_math(task)) {
- fpinit(&task->thread.fpu.hard);
- set_stopped_child_used_math(task);
- } else if (last_task_used_math == task) {
- grab_fpu();
- fpsave(&task->thread.fpu.hard);
- release_fpu();
- last_task_used_math = 0;
- regs->sr |= SR_FD;
- }
-
- ((long *)&task->thread.fpu)[addr / sizeof(unsigned long)] = data;
- return 0;
-}
-
-
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
-{
- int ret;
-
- switch (request) {
- /* when I and D space are separate, these will need to be fixed. */
- case PTRACE_PEEKTEXT: /* read word at location addr. */
- case PTRACE_PEEKDATA:
- ret = generic_ptrace_peekdata(child, addr, data);
- break;
-
- /* read the word at location addr in the USER area. */
- case PTRACE_PEEKUSR: {
- unsigned long tmp;
-
- ret = -EIO;
- if ((addr & 3) || addr < 0)
- break;
-
- if (addr < sizeof(struct pt_regs))
- tmp = get_stack_long(child, addr);
- else if ((addr >= offsetof(struct user, fpu)) &&
- (addr < offsetof(struct user, u_fpvalid))) {
- tmp = get_fpu_long(child, addr - offsetof(struct user, fpu));
- } else if (addr == offsetof(struct user, u_fpvalid)) {
- tmp = !!tsk_used_math(child);
- } else {
- break;
- }
- ret = put_user(tmp, (unsigned long *)data);
- break;
- }
-
- /* when I and D space are separate, this will have to be fixed. */
- case PTRACE_POKETEXT: /* write the word at location addr. */
- case PTRACE_POKEDATA:
- ret = generic_ptrace_pokedata(child, addr, data);
- break;
-
- case PTRACE_POKEUSR:
- /* write the word at location addr in the USER area. We must
- disallow any changes to certain SR bits or u_fpvalid, since
- this could crash the kernel or result in a security
- loophole. */
- ret = -EIO;
- if ((addr & 3) || addr < 0)
- break;
-
- if (addr < sizeof(struct pt_regs)) {
- /* Ignore change of top 32 bits of SR */
- if (addr == offsetof (struct pt_regs, sr)+4)
- {
- ret = 0;
- break;
- }
- /* If lower 32 bits of SR, ignore non-user bits */
- if (addr == offsetof (struct pt_regs, sr))
- {
- long cursr = get_stack_long(child, addr);
- data &= ~(SR_MASK);
- data |= (cursr & SR_MASK);
- }
- ret = put_stack_long(child, addr, data);
- }
- else if ((addr >= offsetof(struct user, fpu)) &&
- (addr < offsetof(struct user, u_fpvalid))) {
- ret = put_fpu_long(child, addr - offsetof(struct user, fpu), data);
- }
- break;
-
- case PTRACE_SYSCALL: /* continue and stop at next (return from) syscall */
- case PTRACE_CONT: { /* restart after signal. */
- ret = -EIO;
- if (!valid_signal(data))
- break;
- if (request == PTRACE_SYSCALL)
- set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- else
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- child->exit_code = data;
- wake_up_process(child);
- ret = 0;
- break;
- }
-
-/*
- * make the child exit. Best I can do is send it a sigkill.
- * perhaps it should be put in the status that it wants to
- * exit.
- */
- case PTRACE_KILL: {
- ret = 0;
- if (child->exit_state == EXIT_ZOMBIE) /* already dead */
- break;
- child->exit_code = SIGKILL;
- wake_up_process(child);
- break;
- }
-
- case PTRACE_SINGLESTEP: { /* set the trap flag. */
- struct pt_regs *regs;
-
- ret = -EIO;
- if (!valid_signal(data))
- break;
- clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
- if ((child->ptrace & PT_DTRACE) == 0) {
- /* Spurious delayed TF traps may occur */
- child->ptrace |= PT_DTRACE;
- }
-
- regs = child->thread.uregs;
-
- regs->sr |= SR_SSTEP; /* auto-resetting upon exception */
-
- child->exit_code = data;
- /* give it a chance to run. */
- wake_up_process(child);
- ret = 0;
- break;
- }
-
- default:
- ret = ptrace_request(child, request, addr, data);
- break;
- }
- return ret;
-}
-
-asmlinkage int sh64_ptrace(long request, long pid, long addr, long data)
-{
- extern void poke_real_address_q(unsigned long long addr, unsigned long long data);
-#define WPC_DBRMODE 0x0d104008
- static int first_call = 1;
-
- lock_kernel();
- if (first_call) {
- /* Set WPC.DBRMODE to 0. This makes all debug events get
- * delivered through RESVEC, i.e. into the handlers in entry.S.
- * (If the kernel was downloaded using a remote gdb, WPC.DBRMODE
- * would normally be left set to 1, which makes debug events get
- * delivered through DBRVEC, i.e. into the remote gdb's
- * handlers. This prevents ptrace getting them, and confuses
- * the remote gdb.) */
- printk("DBRMODE set to 0 to permit native debugging\n");
- poke_real_address_q(WPC_DBRMODE, 0);
- first_call = 0;
- }
- unlock_kernel();
-
- return sys_ptrace(request, pid, addr, data);
-}
-
-asmlinkage void syscall_trace(void)
-{
- struct task_struct *tsk = current;
-
- if (!test_thread_flag(TIF_SYSCALL_TRACE))
- return;
- if (!(tsk->ptrace & PT_PTRACED))
- return;
-
- ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
- ? 0x80 : 0));
- /*
- * this isn't the same as continuing with a signal, but it will do
- * for normal use. strace only continues with a signal if the
- * stopping signal is not SIGTRAP. -brl
- */
- if (tsk->exit_code) {
- send_sig(tsk->exit_code, tsk, 1);
- tsk->exit_code = 0;
- }
-}
-
-/* Called with interrupts disabled */
-asmlinkage void do_single_step(unsigned long long vec, struct pt_regs *regs)
-{
- /* This is called after a single step exception (DEBUGSS).
- There is no need to change the PC, as it is a post-execution
- exception, as entry.S does not do anything to the PC for DEBUGSS.
- We need to clear the Single Step setting in SR to avoid
- continually stepping. */
- local_irq_enable();
- regs->sr &= ~SR_SSTEP;
- force_sig(SIGTRAP, current);
-}
-
-/* Called with interrupts disabled */
-asmlinkage void do_software_break_point(unsigned long long vec,
- struct pt_regs *regs)
-{
- /* We need to forward step the PC, to counteract the backstep done
- in signal.c. */
- local_irq_enable();
- force_sig(SIGTRAP, current);
- regs->pc += 4;
-}
-
-/*
- * Called by kernel/ptrace.c when detaching..
- *
- * Make sure single step bits etc are not set.
- */
-void ptrace_disable(struct task_struct *child)
-{
- /* nothing to do.. */
-}
diff --git a/arch/sh64/kernel/semaphore.c b/arch/sh64/kernel/semaphore.c
deleted file mode 100644
index 72c16533436..00000000000
--- a/arch/sh64/kernel/semaphore.c
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Just taken from alpha implementation.
- * This can't work well, perhaps.
- */
-/*
- * Generic semaphore code. Buyer beware. Do your own
- * specific changes in <asm/semaphore-helper.h>
- */
-
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/wait.h>
-#include <linux/init.h>
-#include <asm/semaphore.h>
-#include <asm/semaphore-helper.h>
-
-spinlock_t semaphore_wake_lock;
-
-/*
- * Semaphores are implemented using a two-way counter:
- * The "count" variable is decremented for each process
- * that tries to sleep, while the "waking" variable is
- * incremented when the "up()" code goes to wake up waiting
- * processes.
- *
- * Notably, the inline "up()" and "down()" functions can
- * efficiently test if they need to do any extra work (up
- * needs to do something only if count was negative before
- * the increment operation.
- *
- * waking_non_zero() (from asm/semaphore.h) must execute
- * atomically.
- *
- * When __up() is called, the count was negative before
- * incrementing it, and we need to wake up somebody.
- *
- * This routine adds one to the count of processes that need to
- * wake up and exit. ALL waiting processes actually wake up but
- * only the one that gets to the "waking" field first will gate
- * through and acquire the semaphore. The others will go back
- * to sleep.
- *
- * Note that these functions are only called when there is
- * contention on the lock, and as such all this is the
- * "non-critical" part of the whole semaphore business. The
- * critical part is the inline stuff in <asm/semaphore.h>
- * where we want to avoid any extra jumps and calls.
- */
-void __up(struct semaphore *sem)
-{
- wake_one_more(sem);
- wake_up(&sem->wait);
-}
-
-/*
- * Perform the "down" function. Return zero for semaphore acquired,
- * return negative for signalled out of the function.
- *
- * If called from __down, the return is ignored and the wait loop is
- * not interruptible. This means that a task waiting on a semaphore
- * using "down()" cannot be killed until someone does an "up()" on
- * the semaphore.
- *
- * If called from __down_interruptible, the return value gets checked
- * upon return. If the return value is negative then the task continues
- * with the negative value in the return register (it can be tested by
- * the caller).
- *
- * Either form may be used in conjunction with "up()".
- *
- */
-
-#define DOWN_VAR \
- struct task_struct *tsk = current; \
- wait_queue_t wait; \
- init_waitqueue_entry(&wait, tsk);
-
-#define DOWN_HEAD(task_state) \
- \
- \
- tsk->state = (task_state); \
- add_wait_queue(&sem->wait, &wait); \
- \
- /* \
- * Ok, we're set up. sem->count is known to be less than zero \
- * so we must wait. \
- * \
- * We can let go the lock for purposes of waiting. \
- * We re-acquire it after awaking so as to protect \
- * all semaphore operations. \
- * \
- * If "up()" is called before we call waking_non_zero() then \
- * we will catch it right away. If it is called later then \
- * we will have to go through a wakeup cycle to catch it. \
- * \
- * Multiple waiters contend for the semaphore lock to see \
- * who gets to gate through and who has to wait some more. \
- */ \
- for (;;) {
-
-#define DOWN_TAIL(task_state) \
- tsk->state = (task_state); \
- } \
- tsk->state = TASK_RUNNING; \
- remove_wait_queue(&sem->wait, &wait);
-
-void __sched __down(struct semaphore * sem)
-{
- DOWN_VAR
- DOWN_HEAD(TASK_UNINTERRUPTIBLE)
- if (waking_non_zero(sem))
- break;
- schedule();
- DOWN_TAIL(TASK_UNINTERRUPTIBLE)
-}
-
-int __sched __down_interruptible(struct semaphore * sem)
-{
- int ret = 0;
- DOWN_VAR
- DOWN_HEAD(TASK_INTERRUPTIBLE)
-
- ret = waking_non_zero_interruptible(sem, tsk);
- if (ret)
- {
- if (ret == 1)
- /* ret != 0 only if we get interrupted -arca */
- ret = 0;
- break;
- }
- schedule();
- DOWN_TAIL(TASK_INTERRUPTIBLE)
- return ret;
-}
-
-int __down_trylock(struct semaphore * sem)
-{
- return waking_non_zero_trylock(sem);
-}
diff --git a/arch/sh64/kernel/setup.c b/arch/sh64/kernel/setup.c
deleted file mode 100644
index 2b7264c0c6f..00000000000
--- a/arch/sh64/kernel/setup.c
+++ /dev/null
@@ -1,379 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/setup.c
- *
- * sh64 Arch Support
- *
- * This file handles the architecture-dependent parts of initialization
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- *
- * benedict.gaster@superh.com: 2nd May 2002
- * Modified to use the empty_zero_page to pass command line arguments.
- *
- * benedict.gaster@superh.com: 3rd May 2002
- * Added support for ramdisk, removing statically linked romfs at the same time.
- *
- * lethal@linux-sh.org: 15th May 2003
- * Added generic procfs cpuinfo reporting. Make boards just export their name.
- *
- * lethal@linux-sh.org: 25th May 2003
- * Added generic get_cpu_subtype() for subtype reporting from cpu_data->type.
- *
- */
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/slab.h>
-#include <linux/user.h>
-#include <linux/a.out.h>
-#include <linux/screen_info.h>
-#include <linux/ioport.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <linux/blkdev.h>
-#include <linux/bootmem.h>
-#include <linux/console.h>
-#include <linux/root_dev.h>
-#include <linux/cpu.h>
-#include <linux/initrd.h>
-#include <linux/pfn.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/platform.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/sections.h>
-#include <asm/setup.h>
-#include <asm/smp.h>
-
-struct screen_info screen_info;
-
-#ifdef CONFIG_BLK_DEV_RAM
-extern int rd_doload; /* 1 = load ramdisk, 0 = don't load */
-extern int rd_prompt; /* 1 = prompt for ramdisk, 0 = don't prompt */
-extern int rd_image_start; /* starting block # of image */
-#endif
-
-extern int root_mountflags;
-extern char *get_system_type(void);
-extern void platform_setup(void);
-extern void platform_monitor(void);
-extern void platform_reserve(void);
-extern int sh64_cache_init(void);
-extern int sh64_tlb_init(void);
-
-#define RAMDISK_IMAGE_START_MASK 0x07FF
-#define RAMDISK_PROMPT_FLAG 0x8000
-#define RAMDISK_LOAD_FLAG 0x4000
-
-static char __initdata command_line[COMMAND_LINE_SIZE] = { 0, };
-unsigned long long memory_start = CONFIG_MEMORY_START;
-unsigned long long memory_end = CONFIG_MEMORY_START + (CONFIG_MEMORY_SIZE_IN_MB * 1024 * 1024);
-
-struct sh_cpuinfo boot_cpu_data;
-
-static inline void parse_mem_cmdline (char ** cmdline_p)
-{
- char c = ' ', *to = command_line, *from = COMMAND_LINE;
- int len = 0;
-
- /* Save unparsed command line copy for /proc/cmdline */
- memcpy(boot_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
- boot_command_line[COMMAND_LINE_SIZE-1] = '\0';
-
- for (;;) {
- /*
- * "mem=XXX[kKmM]" defines a size of memory.
- */
- if (c == ' ' && !memcmp(from, "mem=", 4)) {
- if (to != command_line)
- to--;
- {
- unsigned long mem_size;
-
- mem_size = memparse(from+4, &from);
- memory_end = memory_start + mem_size;
- }
- }
- c = *(from++);
- if (!c)
- break;
- if (COMMAND_LINE_SIZE <= ++len)
- break;
- *(to++) = c;
- }
- *to = '\0';
-
- *cmdline_p = command_line;
-}
-
-static void __init sh64_cpu_type_detect(void)
-{
- extern unsigned long long peek_real_address_q(unsigned long long addr);
- unsigned long long cir;
- /* Do peeks in real mode to avoid having to set up a mapping for the
- WPC registers. On SH5-101 cut2, such a mapping would be exposed to
- an address translation erratum which would make it hard to set up
- correctly. */
- cir = peek_real_address_q(0x0d000008);
-
- if ((cir & 0xffff) == 0x5103) {
- boot_cpu_data.type = CPU_SH5_103;
- } else if (((cir >> 32) & 0xffff) == 0x51e2) {
- /* CPU.VCR aliased at CIR address on SH5-101 */
- boot_cpu_data.type = CPU_SH5_101;
- } else {
- boot_cpu_data.type = CPU_SH_NONE;
- }
-}
-
-void __init setup_arch(char **cmdline_p)
-{
- unsigned long bootmap_size, i;
- unsigned long first_pfn, start_pfn, last_pfn, pages;
-
-#ifdef CONFIG_EARLY_PRINTK
- extern void enable_early_printk(void);
-
- /*
- * Setup Early SCIF console
- */
- enable_early_printk();
-#endif
-
- /*
- * Setup TLB mappings
- */
- sh64_tlb_init();
-
- /*
- * Caches are already initialized by the time we get here, so we just
- * fill in cpu_data info for the caches.
- */
- sh64_cache_init();
-
- platform_setup();
- platform_monitor();
-
- sh64_cpu_type_detect();
-
- ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
-
-#ifdef CONFIG_BLK_DEV_RAM
- rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
- rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
- rd_doload = ((RAMDISK_FLAGS & RAMDISK_LOAD_FLAG) != 0);
-#endif
-
- if (!MOUNT_ROOT_RDONLY)
- root_mountflags &= ~MS_RDONLY;
- init_mm.start_code = (unsigned long) _text;
- init_mm.end_code = (unsigned long) _etext;
- init_mm.end_data = (unsigned long) _edata;
- init_mm.brk = (unsigned long) _end;
-
- code_resource.start = __pa(_text);
- code_resource.end = __pa(_etext)-1;
- data_resource.start = __pa(_etext);
- data_resource.end = __pa(_edata)-1;
-
- parse_mem_cmdline(cmdline_p);
-
- /*
- * Find the lowest and highest page frame numbers we have available
- */
- first_pfn = PFN_DOWN(memory_start);
- last_pfn = PFN_DOWN(memory_end);
- pages = last_pfn - first_pfn;
-
- /*
- * Partially used pages are not usable - thus
- * we are rounding upwards:
- */
- start_pfn = PFN_UP(__pa(_end));
-
- /*
- * Find a proper area for the bootmem bitmap. After this
- * bootstrap step all allocations (until the page allocator
- * is intact) must be done via bootmem_alloc().
- */
- bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
- first_pfn,
- last_pfn);
- /*
- * Round it up.
- */
- bootmap_size = PFN_PHYS(PFN_UP(bootmap_size));
-
- /*
- * Register fully available RAM pages with the bootmem allocator.
- */
- free_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn), PFN_PHYS(pages));
-
- /*
- * Reserve all kernel sections + bootmem bitmap + a guard page.
- */
- reserve_bootmem_node(NODE_DATA(0), PFN_PHYS(first_pfn),
- (PFN_PHYS(start_pfn) + bootmap_size + PAGE_SIZE) - PFN_PHYS(first_pfn));
-
- /*
- * Reserve platform dependent sections
- */
- platform_reserve();
-
-#ifdef CONFIG_BLK_DEV_INITRD
- if (LOADER_TYPE && INITRD_START) {
- if (INITRD_START + INITRD_SIZE <= (PFN_PHYS(last_pfn))) {
- reserve_bootmem_node(NODE_DATA(0), INITRD_START + __MEMORY_START, INITRD_SIZE);
-
- initrd_start = (long) INITRD_START + PAGE_OFFSET + __MEMORY_START;
- initrd_end = initrd_start + INITRD_SIZE;
- } else {
- printk("initrd extends beyond end of memory "
- "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
- (long) INITRD_START + INITRD_SIZE,
- PFN_PHYS(last_pfn));
- initrd_start = 0;
- }
- }
-#endif
-
- /*
- * Claim all RAM, ROM, and I/O resources.
- */
-
- /* Kernel RAM */
- request_resource(&iomem_resource, &code_resource);
- request_resource(&iomem_resource, &data_resource);
-
- /* Other KRAM space */
- for (i = 0; i < STANDARD_KRAM_RESOURCES - 2; i++)
- request_resource(&iomem_resource,
- &platform_parms.kram_res_p[i]);
-
- /* XRAM space */
- for (i = 0; i < STANDARD_XRAM_RESOURCES; i++)
- request_resource(&iomem_resource,
- &platform_parms.xram_res_p[i]);
-
- /* ROM space */
- for (i = 0; i < STANDARD_ROM_RESOURCES; i++)
- request_resource(&iomem_resource,
- &platform_parms.rom_res_p[i]);
-
- /* I/O space */
- for (i = 0; i < STANDARD_IO_RESOURCES; i++)
- request_resource(&ioport_resource,
- &platform_parms.io_res_p[i]);
-
-
-#ifdef CONFIG_VT
-#if defined(CONFIG_VGA_CONSOLE)
- conswitchp = &vga_con;
-#elif defined(CONFIG_DUMMY_CONSOLE)
- conswitchp = &dummy_con;
-#endif
-#endif
-
- printk("Hardware FPU: %s\n", fpu_in_use ? "enabled" : "disabled");
-
- paging_init();
-}
-
-void __xchg_called_with_bad_pointer(void)
-{
- printk(KERN_EMERG "xchg() called with bad pointer !\n");
-}
-
-static struct cpu cpu[1];
-
-static int __init topology_init(void)
-{
- return register_cpu(cpu, 0);
-}
-
-subsys_initcall(topology_init);
-
-/*
- * Get CPU information
- */
-static const char *cpu_name[] = {
- [CPU_SH5_101] = "SH5-101",
- [CPU_SH5_103] = "SH5-103",
- [CPU_SH_NONE] = "Unknown",
-};
-
-const char *get_cpu_subtype(void)
-{
- return cpu_name[boot_cpu_data.type];
-}
-
-#ifdef CONFIG_PROC_FS
-static int show_cpuinfo(struct seq_file *m,void *v)
-{
- unsigned int cpu = smp_processor_id();
-
- if (!cpu)
- seq_printf(m, "machine\t\t: %s\n", get_system_type());
-
- seq_printf(m, "processor\t: %d\n", cpu);
- seq_printf(m, "cpu family\t: SH-5\n");
- seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype());
-
- seq_printf(m, "icache size\t: %dK-bytes\n",
- (boot_cpu_data.icache.ways *
- boot_cpu_data.icache.sets *
- boot_cpu_data.icache.linesz) >> 10);
- seq_printf(m, "dcache size\t: %dK-bytes\n",
- (boot_cpu_data.dcache.ways *
- boot_cpu_data.dcache.sets *
- boot_cpu_data.dcache.linesz) >> 10);
- seq_printf(m, "itlb entries\t: %d\n", boot_cpu_data.itlb.entries);
- seq_printf(m, "dtlb entries\t: %d\n", boot_cpu_data.dtlb.entries);
-
-#define PRINT_CLOCK(name, value) \
- seq_printf(m, name " clock\t: %d.%02dMHz\n", \
- ((value) / 1000000), ((value) % 1000000)/10000)
-
- PRINT_CLOCK("cpu", boot_cpu_data.cpu_clock);
- PRINT_CLOCK("bus", boot_cpu_data.bus_clock);
- PRINT_CLOCK("module", boot_cpu_data.module_clock);
-
- seq_printf(m, "bogomips\t: %lu.%02lu\n\n",
- (loops_per_jiffy*HZ+2500)/500000,
- ((loops_per_jiffy*HZ+2500)/5000) % 100);
-
- return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
- return (void*)(*pos == 0);
-}
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
- return NULL;
-}
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-struct seq_operations cpuinfo_op = {
- .start = c_start,
- .next = c_next,
- .stop = c_stop,
- .show = show_cpuinfo,
-};
-#endif /* CONFIG_PROC_FS */
diff --git a/arch/sh64/kernel/sh_ksyms.c b/arch/sh64/kernel/sh_ksyms.c
deleted file mode 100644
index b1705acc8e6..00000000000
--- a/arch/sh64/kernel/sh_ksyms.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/sh_ksyms.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- */
-
-#include <linux/rwsem.h>
-#include <linux/module.h>
-#include <linux/smp.h>
-#include <linux/user.h>
-#include <linux/elfcore.h>
-#include <linux/sched.h>
-#include <linux/in6.h>
-#include <linux/interrupt.h>
-#include <linux/screen_info.h>
-
-#include <asm/semaphore.h>
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-#include <asm/checksum.h>
-#include <asm/io.h>
-#include <asm/delay.h>
-#include <asm/irq.h>
-
-extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
-
-/* platform dependent support */
-EXPORT_SYMBOL(dump_fpu);
-EXPORT_SYMBOL(kernel_thread);
-
-/* Networking helper routines. */
-EXPORT_SYMBOL(csum_partial_copy_nocheck);
-
-#ifdef CONFIG_VT
-EXPORT_SYMBOL(screen_info);
-#endif
-
-EXPORT_SYMBOL(__down);
-EXPORT_SYMBOL(__down_trylock);
-EXPORT_SYMBOL(__up);
-EXPORT_SYMBOL(__put_user_asm_l);
-EXPORT_SYMBOL(__get_user_asm_l);
-EXPORT_SYMBOL(__copy_user);
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(udelay);
-EXPORT_SYMBOL(__udelay);
-EXPORT_SYMBOL(ndelay);
-EXPORT_SYMBOL(__ndelay);
-EXPORT_SYMBOL(flush_dcache_page);
-EXPORT_SYMBOL(sh64_page_clear);
-
-/* Ugh. These come in from libgcc.a at link time. */
-#define DECLARE_EXPORT(name) extern void name(void);EXPORT_SYMBOL(name)
-
-DECLARE_EXPORT(__sdivsi3);
-DECLARE_EXPORT(__muldi3);
-DECLARE_EXPORT(__udivsi3);
diff --git a/arch/sh64/kernel/signal.c b/arch/sh64/kernel/signal.c
deleted file mode 100644
index 79fc48cf54c..00000000000
--- a/arch/sh64/kernel/signal.c
+++ /dev/null
@@ -1,750 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/signal.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003 Paul Mundt
- * Copyright (C) 2004 Richard Curnow
- *
- * Started from sh version.
- *
- */
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/errno.h>
-#include <linux/wait.h>
-#include <linux/personality.h>
-#include <linux/freezer.h>
-#include <linux/ptrace.h>
-#include <linux/unistd.h>
-#include <linux/stddef.h>
-#include <asm/ucontext.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-
-
-#define REG_RET 9
-#define REG_ARG1 2
-#define REG_ARG2 3
-#define REG_ARG3 4
-#define REG_SP 15
-#define REG_PR 18
-#define REF_REG_RET regs->regs[REG_RET]
-#define REF_REG_SP regs->regs[REG_SP]
-#define DEREF_REG_PR regs->regs[REG_PR]
-
-#define DEBUG_SIG 0
-
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-asmlinkage int do_signal(struct pt_regs *regs, sigset_t *oldset);
-
-/*
- * Atomically swap in the new signal mask, and wait for a signal.
- */
-
-asmlinkage int
-sys_sigsuspend(old_sigset_t mask,
- unsigned long r3, unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs * regs)
-{
- sigset_t saveset;
-
- mask &= _BLOCKABLE;
- spin_lock_irq(&current->sighand->siglock);
- saveset = current->blocked;
- siginitset(&current->blocked, mask);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- REF_REG_RET = -EINTR;
- while (1) {
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- regs->pc += 4; /* because sys_sigreturn decrements the pc */
- if (do_signal(regs, &saveset)) {
- /* pc now points at signal handler. Need to decrement
- it because entry.S will increment it. */
- regs->pc -= 4;
- return -EINTR;
- }
- }
-}
-
-asmlinkage int
-sys_rt_sigsuspend(sigset_t *unewset, size_t sigsetsize,
- unsigned long r4, unsigned long r5, unsigned long r6,
- unsigned long r7,
- struct pt_regs * regs)
-{
- sigset_t saveset, newset;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(sigset_t))
- return -EINVAL;
-
- if (copy_from_user(&newset, unewset, sizeof(newset)))
- return -EFAULT;
- sigdelsetmask(&newset, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- saveset = current->blocked;
- current->blocked = newset;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- REF_REG_RET = -EINTR;
- while (1) {
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- regs->pc += 4; /* because sys_sigreturn decrements the pc */
- if (do_signal(regs, &saveset)) {
- /* pc now points at signal handler. Need to decrement
- it because entry.S will increment it. */
- regs->pc -= 4;
- return -EINTR;
- }
- }
-}
-
-asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction __user *act,
- struct old_sigaction __user *oact)
-{
- struct k_sigaction new_ka, old_ka;
- int ret;
-
- if (act) {
- old_sigset_t mask;
- if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
- __get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_restorer, &act->sa_restorer))
- return -EFAULT;
- __get_user(new_ka.sa.sa_flags, &act->sa_flags);
- __get_user(mask, &act->sa_mask);
- siginitset(&new_ka.sa.sa_mask, mask);
- }
-
- ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
- if (!ret && oact) {
- if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
- __put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
- __put_user(old_ka.sa.sa_restorer, &oact->sa_restorer))
- return -EFAULT;
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags);
- __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask);
- }
-
- return ret;
-}
-
-asmlinkage int
-sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss,
- unsigned long r4, unsigned long r5, unsigned long r6,
- unsigned long r7,
- struct pt_regs * regs)
-{
- return do_sigaltstack(uss, uoss, REF_REG_SP);
-}
-
-
-/*
- * Do a signal return; undo the signal stack.
- */
-
-struct sigframe
-{
- struct sigcontext sc;
- unsigned long extramask[_NSIG_WORDS-1];
- long long retcode[2];
-};
-
-struct rt_sigframe
-{
- struct siginfo __user *pinfo;
- void *puc;
- struct siginfo info;
- struct ucontext uc;
- long long retcode[2];
-};
-
-#ifdef CONFIG_SH_FPU
-static inline int
-restore_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{
- int err = 0;
- int fpvalid;
-
- err |= __get_user (fpvalid, &sc->sc_fpvalid);
- conditional_used_math(fpvalid);
- if (! fpvalid)
- return err;
-
- if (current == last_task_used_math) {
- last_task_used_math = NULL;
- regs->sr |= SR_FD;
- }
-
- err |= __copy_from_user(&current->thread.fpu.hard, &sc->sc_fpregs[0],
- (sizeof(long long) * 32) + (sizeof(int) * 1));
-
- return err;
-}
-
-static inline int
-setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{
- int err = 0;
- int fpvalid;
-
- fpvalid = !!used_math();
- err |= __put_user(fpvalid, &sc->sc_fpvalid);
- if (! fpvalid)
- return err;
-
- if (current == last_task_used_math) {
- grab_fpu();
- fpsave(&current->thread.fpu.hard);
- release_fpu();
- last_task_used_math = NULL;
- regs->sr |= SR_FD;
- }
-
- err |= __copy_to_user(&sc->sc_fpregs[0], &current->thread.fpu.hard,
- (sizeof(long long) * 32) + (sizeof(int) * 1));
- clear_used_math();
-
- return err;
-}
-#else
-static inline int
-restore_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{}
-static inline int
-setup_sigcontext_fpu(struct pt_regs *regs, struct sigcontext __user *sc)
-{}
-#endif
-
-static int
-restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc, long long *r2_p)
-{
- unsigned int err = 0;
- unsigned long long current_sr, new_sr;
-#define SR_MASK 0xffff8cfd
-
-#define COPY(x) err |= __get_user(regs->x, &sc->sc_##x)
-
- COPY(regs[0]); COPY(regs[1]); COPY(regs[2]); COPY(regs[3]);
- COPY(regs[4]); COPY(regs[5]); COPY(regs[6]); COPY(regs[7]);
- COPY(regs[8]); COPY(regs[9]); COPY(regs[10]); COPY(regs[11]);
- COPY(regs[12]); COPY(regs[13]); COPY(regs[14]); COPY(regs[15]);
- COPY(regs[16]); COPY(regs[17]); COPY(regs[18]); COPY(regs[19]);
- COPY(regs[20]); COPY(regs[21]); COPY(regs[22]); COPY(regs[23]);
- COPY(regs[24]); COPY(regs[25]); COPY(regs[26]); COPY(regs[27]);
- COPY(regs[28]); COPY(regs[29]); COPY(regs[30]); COPY(regs[31]);
- COPY(regs[32]); COPY(regs[33]); COPY(regs[34]); COPY(regs[35]);
- COPY(regs[36]); COPY(regs[37]); COPY(regs[38]); COPY(regs[39]);
- COPY(regs[40]); COPY(regs[41]); COPY(regs[42]); COPY(regs[43]);
- COPY(regs[44]); COPY(regs[45]); COPY(regs[46]); COPY(regs[47]);
- COPY(regs[48]); COPY(regs[49]); COPY(regs[50]); COPY(regs[51]);
- COPY(regs[52]); COPY(regs[53]); COPY(regs[54]); COPY(regs[55]);
- COPY(regs[56]); COPY(regs[57]); COPY(regs[58]); COPY(regs[59]);
- COPY(regs[60]); COPY(regs[61]); COPY(regs[62]);
- COPY(tregs[0]); COPY(tregs[1]); COPY(tregs[2]); COPY(tregs[3]);
- COPY(tregs[4]); COPY(tregs[5]); COPY(tregs[6]); COPY(tregs[7]);
-
- /* Prevent the signal handler manipulating SR in a way that can
- crash the kernel. i.e. only allow S, Q, M, PR, SZ, FR to be
- modified */
- current_sr = regs->sr;
- err |= __get_user(new_sr, &sc->sc_sr);
- regs->sr &= SR_MASK;
- regs->sr |= (new_sr & ~SR_MASK);
-
- COPY(pc);
-
-#undef COPY
-
- /* Must do this last in case it sets regs->sr.fd (i.e. after rest of sr
- * has been restored above.) */
- err |= restore_sigcontext_fpu(regs, sc);
-
- regs->syscall_nr = -1; /* disable syscall checks */
- err |= __get_user(*r2_p, &sc->sc_regs[REG_RET]);
- return err;
-}
-
-asmlinkage int sys_sigreturn(unsigned long r2, unsigned long r3,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs * regs)
-{
- struct sigframe __user *frame = (struct sigframe __user *) (long) REF_REG_SP;
- sigset_t set;
- long long ret;
-
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
-
- if (__get_user(set.sig[0], &frame->sc.oldmask)
- || (_NSIG_WORDS > 1
- && __copy_from_user(&set.sig[1], &frame->extramask,
- sizeof(frame->extramask))))
- goto badframe;
-
- sigdelsetmask(&set, ~_BLOCKABLE);
-
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- if (restore_sigcontext(regs, &frame->sc, &ret))
- goto badframe;
- regs->pc -= 4;
-
- return (int) ret;
-
-badframe:
- force_sig(SIGSEGV, current);
- return 0;
-}
-
-asmlinkage int sys_rt_sigreturn(unsigned long r2, unsigned long r3,
- unsigned long r4, unsigned long r5,
- unsigned long r6, unsigned long r7,
- struct pt_regs * regs)
-{
- struct rt_sigframe __user *frame = (struct rt_sigframe __user *) (long) REF_REG_SP;
- sigset_t set;
- stack_t __user st;
- long long ret;
-
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
-
- if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
- goto badframe;
-
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &ret))
- goto badframe;
- regs->pc -= 4;
-
- if (__copy_from_user(&st, &frame->uc.uc_stack, sizeof(st)))
- goto badframe;
- /* It is more difficult to avoid calling this function than to
- call it and ignore errors. */
- do_sigaltstack(&st, NULL, REF_REG_SP);
-
- return (int) ret;
-
-badframe:
- force_sig(SIGSEGV, current);
- return 0;
-}
-
-/*
- * Set up a signal frame.
- */
-
-static int
-setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
- unsigned long mask)
-{
- int err = 0;
-
- /* Do this first, otherwise is this sets sr->fd, that value isn't preserved. */
- err |= setup_sigcontext_fpu(regs, sc);
-
-#define COPY(x) err |= __put_user(regs->x, &sc->sc_##x)
-
- COPY(regs[0]); COPY(regs[1]); COPY(regs[2]); COPY(regs[3]);
- COPY(regs[4]); COPY(regs[5]); COPY(regs[6]); COPY(regs[7]);
- COPY(regs[8]); COPY(regs[9]); COPY(regs[10]); COPY(regs[11]);
- COPY(regs[12]); COPY(regs[13]); COPY(regs[14]); COPY(regs[15]);
- COPY(regs[16]); COPY(regs[17]); COPY(regs[18]); COPY(regs[19]);
- COPY(regs[20]); COPY(regs[21]); COPY(regs[22]); COPY(regs[23]);
- COPY(regs[24]); COPY(regs[25]); COPY(regs[26]); COPY(regs[27]);
- COPY(regs[28]); COPY(regs[29]); COPY(regs[30]); COPY(regs[31]);
- COPY(regs[32]); COPY(regs[33]); COPY(regs[34]); COPY(regs[35]);
- COPY(regs[36]); COPY(regs[37]); COPY(regs[38]); COPY(regs[39]);
- COPY(regs[40]); COPY(regs[41]); COPY(regs[42]); COPY(regs[43]);
- COPY(regs[44]); COPY(regs[45]); COPY(regs[46]); COPY(regs[47]);
- COPY(regs[48]); COPY(regs[49]); COPY(regs[50]); COPY(regs[51]);
- COPY(regs[52]); COPY(regs[53]); COPY(regs[54]); COPY(regs[55]);
- COPY(regs[56]); COPY(regs[57]); COPY(regs[58]); COPY(regs[59]);
- COPY(regs[60]); COPY(regs[61]); COPY(regs[62]);
- COPY(tregs[0]); COPY(tregs[1]); COPY(tregs[2]); COPY(tregs[3]);
- COPY(tregs[4]); COPY(tregs[5]); COPY(tregs[6]); COPY(tregs[7]);
- COPY(sr); COPY(pc);
-
-#undef COPY
-
- err |= __put_user(mask, &sc->oldmask);
-
- return err;
-}
-
-/*
- * Determine which stack to use..
- */
-static inline void __user *
-get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size)
-{
- if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp))
- sp = current->sas_ss_sp + current->sas_ss_size;
-
- return (void __user *)((sp - frame_size) & -8ul);
-}
-
-void sa_default_restorer(void); /* See comments below */
-void sa_default_rt_restorer(void); /* See comments below */
-
-static void setup_frame(int sig, struct k_sigaction *ka,
- sigset_t *set, struct pt_regs *regs)
-{
- struct sigframe __user *frame;
- int err = 0;
- int signal;
-
- frame = get_sigframe(ka, regs->regs[REG_SP], sizeof(*frame));
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- goto give_sigsegv;
-
- signal = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
- err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
-
- /* Give up earlier as i386, in case */
- if (err)
- goto give_sigsegv;
-
- if (_NSIG_WORDS > 1) {
- err |= __copy_to_user(frame->extramask, &set->sig[1],
- sizeof(frame->extramask)); }
-
- /* Give up earlier as i386, in case */
- if (err)
- goto give_sigsegv;
-
- /* Set up to return from userspace. If provided, use a stub
- already in userspace. */
- if (ka->sa.sa_flags & SA_RESTORER) {
- DEREF_REG_PR = (unsigned long) ka->sa.sa_restorer | 0x1;
-
- /*
- * On SH5 all edited pointers are subject to NEFF
- */
- DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
- (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
- } else {
- /*
- * Different approach on SH5.
- * . Endianness independent asm code gets placed in entry.S .
- * This is limited to four ASM instructions corresponding
- * to two long longs in size.
- * . err checking is done on the else branch only
- * . flush_icache_range() is called upon __put_user() only
- * . all edited pointers are subject to NEFF
- * . being code, linker turns ShMedia bit on, always
- * dereference index -1.
- */
- DEREF_REG_PR = (unsigned long) frame->retcode | 0x01;
- DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
- (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
-
- if (__copy_to_user(frame->retcode,
- (unsigned long long)sa_default_restorer & (~1), 16) != 0)
- goto give_sigsegv;
-
- /* Cohere the trampoline with the I-cache. */
- flush_cache_sigtramp(DEREF_REG_PR-1, DEREF_REG_PR-1+16);
- }
-
- /*
- * Set up registers for signal handler.
- * All edited pointers are subject to NEFF.
- */
- regs->regs[REG_SP] = (unsigned long) frame;
- regs->regs[REG_SP] = (regs->regs[REG_SP] & NEFF_SIGN) ?
- (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP];
- regs->regs[REG_ARG1] = signal; /* Arg for signal handler */
-
- /* FIXME:
- The glibc profiling support for SH-5 needs to be passed a sigcontext
- so it can retrieve the PC. At some point during 2003 the glibc
- support was changed to receive the sigcontext through the 2nd
- argument, but there are still versions of libc.so in use that use
- the 3rd argument. Until libc.so is stabilised, pass the sigcontext
- through both 2nd and 3rd arguments.
- */
-
- regs->regs[REG_ARG2] = (unsigned long long)(unsigned long)(signed long)&frame->sc;
- regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->sc;
-
- regs->pc = (unsigned long) ka->sa.sa_handler;
- regs->pc = (regs->pc & NEFF_SIGN) ? (regs->pc | NEFF_MASK) : regs->pc;
-
- set_fs(USER_DS);
-
-#if DEBUG_SIG
- /* Broken %016Lx */
- printk("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
- signal,
- current->comm, current->pid, frame,
- regs->pc >> 32, regs->pc & 0xffffffff,
- DEREF_REG_PR >> 32, DEREF_REG_PR & 0xffffffff);
-#endif
-
- return;
-
-give_sigsegv:
- force_sigsegv(sig, current);
-}
-
-static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
- sigset_t *set, struct pt_regs *regs)
-{
- struct rt_sigframe __user *frame;
- int err = 0;
- int signal;
-
- frame = get_sigframe(ka, regs->regs[REG_SP], sizeof(*frame));
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- goto give_sigsegv;
-
- signal = current_thread_info()->exec_domain
- && current_thread_info()->exec_domain->signal_invmap
- && sig < 32
- ? current_thread_info()->exec_domain->signal_invmap[sig]
- : sig;
-
- err |= __put_user(&frame->info, &frame->pinfo);
- err |= __put_user(&frame->uc, &frame->puc);
- err |= copy_siginfo_to_user(&frame->info, info);
-
- /* Give up earlier as i386, in case */
- if (err)
- goto give_sigsegv;
-
- /* Create the ucontext. */
- err |= __put_user(0, &frame->uc.uc_flags);
- err |= __put_user(0, &frame->uc.uc_link);
- err |= __put_user((void *)current->sas_ss_sp,
- &frame->uc.uc_stack.ss_sp);
- err |= __put_user(sas_ss_flags(regs->regs[REG_SP]),
- &frame->uc.uc_stack.ss_flags);
- err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
- err |= setup_sigcontext(&frame->uc.uc_mcontext,
- regs, set->sig[0]);
- err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-
- /* Give up earlier as i386, in case */
- if (err)
- goto give_sigsegv;
-
- /* Set up to return from userspace. If provided, use a stub
- already in userspace. */
- if (ka->sa.sa_flags & SA_RESTORER) {
- DEREF_REG_PR = (unsigned long) ka->sa.sa_restorer | 0x1;
-
- /*
- * On SH5 all edited pointers are subject to NEFF
- */
- DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
- (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
- } else {
- /*
- * Different approach on SH5.
- * . Endianness independent asm code gets placed in entry.S .
- * This is limited to four ASM instructions corresponding
- * to two long longs in size.
- * . err checking is done on the else branch only
- * . flush_icache_range() is called upon __put_user() only
- * . all edited pointers are subject to NEFF
- * . being code, linker turns ShMedia bit on, always
- * dereference index -1.
- */
-
- DEREF_REG_PR = (unsigned long) frame->retcode | 0x01;
- DEREF_REG_PR = (DEREF_REG_PR & NEFF_SIGN) ?
- (DEREF_REG_PR | NEFF_MASK) : DEREF_REG_PR;
-
- if (__copy_to_user(frame->retcode,
- (unsigned long long)sa_default_rt_restorer & (~1), 16) != 0)
- goto give_sigsegv;
-
- flush_icache_range(DEREF_REG_PR-1, DEREF_REG_PR-1+15);
- }
-
- /*
- * Set up registers for signal handler.
- * All edited pointers are subject to NEFF.
- */
- regs->regs[REG_SP] = (unsigned long) frame;
- regs->regs[REG_SP] = (regs->regs[REG_SP] & NEFF_SIGN) ?
- (regs->regs[REG_SP] | NEFF_MASK) : regs->regs[REG_SP];
- regs->regs[REG_ARG1] = signal; /* Arg for signal handler */
- regs->regs[REG_ARG2] = (unsigned long long)(unsigned long)(signed long)&frame->info;
- regs->regs[REG_ARG3] = (unsigned long long)(unsigned long)(signed long)&frame->uc.uc_mcontext;
- regs->pc = (unsigned long) ka->sa.sa_handler;
- regs->pc = (regs->pc & NEFF_SIGN) ? (regs->pc | NEFF_MASK) : regs->pc;
-
- set_fs(USER_DS);
-
-#if DEBUG_SIG
- /* Broken %016Lx */
- printk("SIG deliver (#%d,%s:%d): sp=%p pc=%08Lx%08Lx link=%08Lx%08Lx\n",
- signal,
- current->comm, current->pid, frame,
- regs->pc >> 32, regs->pc & 0xffffffff,
- DEREF_REG_PR >> 32, DEREF_REG_PR & 0xffffffff);
-#endif
-
- return;
-
-give_sigsegv:
- force_sigsegv(sig, current);
-}
-
-/*
- * OK, we're invoking a handler
- */
-
-static void
-handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
- sigset_t *oldset, struct pt_regs * regs)
-{
- /* Are we from a system call? */
- if (regs->syscall_nr >= 0) {
- /* If so, check system call restarting.. */
- switch (regs->regs[REG_RET]) {
- case -ERESTART_RESTARTBLOCK:
- case -ERESTARTNOHAND:
- regs->regs[REG_RET] = -EINTR;
- break;
-
- case -ERESTARTSYS:
- if (!(ka->sa.sa_flags & SA_RESTART)) {
- regs->regs[REG_RET] = -EINTR;
- break;
- }
- /* fallthrough */
- case -ERESTARTNOINTR:
- /* Decode syscall # */
- regs->regs[REG_RET] = regs->syscall_nr;
- regs->pc -= 4;
- }
- }
-
- /* Set up the stack frame */
- if (ka->sa.sa_flags & SA_SIGINFO)
- setup_rt_frame(sig, ka, info, oldset, regs);
- else
- setup_frame(sig, ka, oldset, regs);
-
- spin_lock_irq(&current->sighand->siglock);
- sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
- if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(&current->blocked,sig);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-}
-
-/*
- * Note that 'init' is a special process: it doesn't get signals it doesn't
- * want to handle. Thus you cannot kill init even with a SIGKILL even by
- * mistake.
- *
- * Note that we go through the signals twice: once to check the signals that
- * the kernel can handle, and then we build all the user-level signal handling
- * stack-frames in one go after that.
- */
-int do_signal(struct pt_regs *regs, sigset_t *oldset)
-{
- siginfo_t info;
- int signr;
- struct k_sigaction ka;
-
- /*
- * We want the common case to go fast, which
- * is why we may in certain cases get here from
- * kernel mode. Just return without doing anything
- * if so.
- */
- if (!user_mode(regs))
- return 1;
-
- if (try_to_freeze())
- goto no_signal;
-
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- oldset = &current->saved_sigmask;
- else if (!oldset)
- oldset = &current->blocked;
-
- signr = get_signal_to_deliver(&info, &ka, regs, 0);
-
- if (signr > 0) {
- /* Whee! Actually deliver the signal. */
- handle_signal(signr, &info, &ka, oldset, regs);
-
- /*
- * If a signal was successfully delivered, the saved sigmask
- * is in its frame, and we can clear the TIF_RESTORE_SIGMASK
- * flag.
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-
- return 1;
- }
-
-no_signal:
- /* Did we come from a system call? */
- if (regs->syscall_nr >= 0) {
- /* Restart the system call - no handlers present */
- switch (regs->regs[REG_RET]) {
- case -ERESTARTNOHAND:
- case -ERESTARTSYS:
- case -ERESTARTNOINTR:
- /* Decode Syscall # */
- regs->regs[REG_RET] = regs->syscall_nr;
- regs->pc -= 4;
- break;
-
- case -ERESTART_RESTARTBLOCK:
- regs->regs[REG_RET] = __NR_restart_syscall;
- regs->pc -= 4;
- break;
- }
- }
-
- /* No signal to deliver -- put the saved sigmask back */
- if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
- clear_thread_flag(TIF_RESTORE_SIGMASK);
- sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
- }
-
- return 0;
-}
diff --git a/arch/sh64/kernel/switchto.S b/arch/sh64/kernel/switchto.S
deleted file mode 100644
index 45b2d90eed7..00000000000
--- a/arch/sh64/kernel/switchto.S
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * arch/sh64/kernel/switchto.S
- *
- * sh64 context switch
- *
- * Copyright (C) 2004 Richard Curnow
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
-*/
-
- .section .text..SHmedia32,"ax"
- .little
-
- .balign 32
-
- .type sh64_switch_to,@function
- .global sh64_switch_to
- .global __sh64_switch_to_end
-sh64_switch_to:
-
-/* Incoming args
- r2 - prev
- r3 - &prev->thread
- r4 - next
- r5 - &next->thread
-
- Outgoing results
- r2 - last (=prev) : this just stays in r2 throughout
-
- Want to create a full (struct pt_regs) on the stack to allow backtracing
- functions to work. However, we only need to populate the callee-save
- register slots in this structure; since we're a function our ancestors must
- have themselves preserved all caller saved state in the stack. This saves
- some wasted effort since we won't need to look at the values.
-
- In particular, all caller-save registers are immediately available for
- scratch use.
-
-*/
-
-#define FRAME_SIZE (76*8 + 8)
-
- movi FRAME_SIZE, r0
- sub.l r15, r0, r15
- ! Do normal-style register save to support backtrace
-
- st.l r15, 0, r18 ! save link reg
- st.l r15, 4, r14 ! save fp
- add.l r15, r63, r14 ! setup frame pointer
-
- ! hopefully this looks normal to the backtrace now.
-
- addi.l r15, 8, r1 ! base of pt_regs
- addi.l r1, 24, r0 ! base of pt_regs.regs
- addi.l r0, (63*8), r8 ! base of pt_regs.trregs
-
- /* Note : to be fixed?
- struct pt_regs is really designed for holding the state on entry
- to an exception, i.e. pc,sr,regs etc. However, for the context
- switch state, some of this is not required. But the unwinder takes
- struct pt_regs * as an arg so we have to build this structure
- to allow unwinding switched tasks in show_state() */
-
- st.q r0, ( 9*8), r9
- st.q r0, (10*8), r10
- st.q r0, (11*8), r11
- st.q r0, (12*8), r12
- st.q r0, (13*8), r13
- st.q r0, (14*8), r14 ! for unwind, want to look as though we took a trap at
- ! the point where the process is left in suspended animation, i.e. current
- ! fp here, not the saved one.
- st.q r0, (16*8), r16
-
- st.q r0, (24*8), r24
- st.q r0, (25*8), r25
- st.q r0, (26*8), r26
- st.q r0, (27*8), r27
- st.q r0, (28*8), r28
- st.q r0, (29*8), r29
- st.q r0, (30*8), r30
- st.q r0, (31*8), r31
- st.q r0, (32*8), r32
- st.q r0, (33*8), r33
- st.q r0, (34*8), r34
- st.q r0, (35*8), r35
-
- st.q r0, (44*8), r44
- st.q r0, (45*8), r45
- st.q r0, (46*8), r46
- st.q r0, (47*8), r47
- st.q r0, (48*8), r48
- st.q r0, (49*8), r49
- st.q r0, (50*8), r50
- st.q r0, (51*8), r51
- st.q r0, (52*8), r52
- st.q r0, (53*8), r53
- st.q r0, (54*8), r54
- st.q r0, (55*8), r55
- st.q r0, (56*8), r56
- st.q r0, (57*8), r57
- st.q r0, (58*8), r58
- st.q r0, (59*8), r59
-
- ! do this early as pta->gettr has no pipeline forwarding (=> 5 cycle latency)
- ! Use a local label to avoid creating a symbol that will confuse the !
- ! backtrace
- pta .Lsave_pc, tr0
-
- gettr tr5, r45
- gettr tr6, r46
- gettr tr7, r47
- st.q r8, (5*8), r45
- st.q r8, (6*8), r46
- st.q r8, (7*8), r47
-
- ! Now switch context
- gettr tr0, r9
- st.l r3, 0, r15 ! prev->thread.sp
- st.l r3, 8, r1 ! prev->thread.kregs
- st.l r3, 4, r9 ! prev->thread.pc
- st.q r1, 0, r9 ! save prev->thread.pc into pt_regs->pc
-
- ! Load PC for next task (init value or save_pc later)
- ld.l r5, 4, r18 ! next->thread.pc
- ! Switch stacks
- ld.l r5, 0, r15 ! next->thread.sp
- ptabs r18, tr0
-
- ! Update current
- ld.l r4, 4, r9 ! next->thread_info (2nd element of next task_struct)
- putcon r9, kcr0 ! current = next->thread_info
-
- ! go to save_pc for a reschedule, or the initial thread.pc for a new process
- blink tr0, r63
-
- ! Restore (when we come back to a previously saved task)
-.Lsave_pc:
- addi.l r15, 32, r0 ! r0 = next's regs
- addi.l r0, (63*8), r8 ! r8 = next's tr_regs
-
- ld.q r8, (5*8), r45
- ld.q r8, (6*8), r46
- ld.q r8, (7*8), r47
- ptabs r45, tr5
- ptabs r46, tr6
- ptabs r47, tr7
-
- ld.q r0, ( 9*8), r9
- ld.q r0, (10*8), r10
- ld.q r0, (11*8), r11
- ld.q r0, (12*8), r12
- ld.q r0, (13*8), r13
- ld.q r0, (14*8), r14
- ld.q r0, (16*8), r16
-
- ld.q r0, (24*8), r24
- ld.q r0, (25*8), r25
- ld.q r0, (26*8), r26
- ld.q r0, (27*8), r27
- ld.q r0, (28*8), r28
- ld.q r0, (29*8), r29
- ld.q r0, (30*8), r30
- ld.q r0, (31*8), r31
- ld.q r0, (32*8), r32
- ld.q r0, (33*8), r33
- ld.q r0, (34*8), r34
- ld.q r0, (35*8), r35
-
- ld.q r0, (44*8), r44
- ld.q r0, (45*8), r45
- ld.q r0, (46*8), r46
- ld.q r0, (47*8), r47
- ld.q r0, (48*8), r48
- ld.q r0, (49*8), r49
- ld.q r0, (50*8), r50
- ld.q r0, (51*8), r51
- ld.q r0, (52*8), r52
- ld.q r0, (53*8), r53
- ld.q r0, (54*8), r54
- ld.q r0, (55*8), r55
- ld.q r0, (56*8), r56
- ld.q r0, (57*8), r57
- ld.q r0, (58*8), r58
- ld.q r0, (59*8), r59
-
- ! epilogue
- ld.l r15, 0, r18
- ld.l r15, 4, r14
- ptabs r18, tr0
- movi FRAME_SIZE, r0
- add r15, r0, r15
- blink tr0, r63
-__sh64_switch_to_end:
-.LFE1:
- .size sh64_switch_to,.LFE1-sh64_switch_to
-
diff --git a/arch/sh64/kernel/sys_sh64.c b/arch/sh64/kernel/sys_sh64.c
deleted file mode 100644
index de0a303ba26..00000000000
--- a/arch/sh64/kernel/sys_sh64.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/sys_sh64.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * This file contains various random system calls that
- * have a non-standard calling sequence on the Linux/SH5
- * platform.
- *
- * Mostly taken from i386 version.
- *
- */
-
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/smp.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/mman.h>
-#include <linux/file.h>
-#include <linux/utsname.h>
-#include <linux/syscalls.h>
-#include <linux/ipc.h>
-#include <asm/uaccess.h>
-#include <asm/ptrace.h>
-#include <asm/unistd.h>
-
-#define REG_3 3
-
-/*
- * sys_pipe() is the normal C calling standard for creating
- * a pipe. It's not the way Unix traditionally does this, though.
- */
-#ifdef NEW_PIPE_IMPLEMENTATION
-asmlinkage int sys_pipe(unsigned long * fildes,
- unsigned long dummy_r3,
- unsigned long dummy_r4,
- unsigned long dummy_r5,
- unsigned long dummy_r6,
- unsigned long dummy_r7,
- struct pt_regs * regs) /* r8 = pt_regs forced by entry.S */
-{
- int fd[2];
- int ret;
-
- ret = do_pipe(fd);
- if (ret == 0)
- /*
- ***********************************************************************
- * To avoid the copy_to_user we prefer to break the ABIs convention, *
- * packing the valid pair of file IDs into a single register (r3); *
- * while r2 is the return code as defined by the sh5-ABIs. *
- * BE CAREFUL: pipe stub, into glibc, must be aware of this solution *
- ***********************************************************************
-
-#ifdef __LITTLE_ENDIAN__
- regs->regs[REG_3] = (((unsigned long long) fd[1]) << 32) | ((unsigned long long) fd[0]);
-#else
- regs->regs[REG_3] = (((unsigned long long) fd[0]) << 32) | ((unsigned long long) fd[1]);
-#endif
-
- */
- /* although not very clever this is endianess independent */
- regs->regs[REG_3] = (unsigned long long) *((unsigned long long *) fd);
-
- return ret;
-}
-
-#else
-asmlinkage int sys_pipe(unsigned long * fildes)
-{
- int fd[2];
- int error;
-
- error = do_pipe(fd);
- if (!error) {
- if (copy_to_user(fildes, fd, 2*sizeof(int)))
- error = -EFAULT;
- }
- return error;
-}
-
-#endif
-
-/*
- * To avoid cache alias, we map the shard page with same color.
- */
-#define COLOUR_ALIGN(addr) (((addr)+SHMLBA-1)&~(SHMLBA-1))
-
-unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
- unsigned long len, unsigned long pgoff, unsigned long flags)
-{
- struct vm_area_struct *vma;
-
- if (flags & MAP_FIXED) {
- /* We do not accept a shared mapping if it would violate
- * cache aliasing constraints.
- */
- if ((flags & MAP_SHARED) && (addr & (SHMLBA - 1)))
- return -EINVAL;
- return addr;
- }
-
- if (len > TASK_SIZE)
- return -ENOMEM;
- if (!addr)
- addr = TASK_UNMAPPED_BASE;
-
- if (flags & MAP_PRIVATE)
- addr = PAGE_ALIGN(addr);
- else
- addr = COLOUR_ALIGN(addr);
-
- for (vma = find_vma(current->mm, addr); ; vma = vma->vm_next) {
- /* At this point: (!vma || addr < vma->vm_end). */
- if (TASK_SIZE - len < addr)
- return -ENOMEM;
- if (!vma || addr + len <= vma->vm_start)
- return addr;
- addr = vma->vm_end;
- if (!(flags & MAP_PRIVATE))
- addr = COLOUR_ALIGN(addr);
- }
-}
-
-/* common code for old and new mmaps */
-static inline long do_mmap2(
- unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- int error = -EBADF;
- struct file * file = NULL;
-
- flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
- if (!(flags & MAP_ANONYMOUS)) {
- file = fget(fd);
- if (!file)
- goto out;
- }
-
- down_write(&current->mm->mmap_sem);
- error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
- up_write(&current->mm->mmap_sem);
-
- if (file)
- fput(file);
-out:
- return error;
-}
-
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- unsigned long fd, unsigned long pgoff)
-{
- return do_mmap2(addr, len, prot, flags, fd, pgoff);
-}
-
-asmlinkage int old_mmap(unsigned long addr, unsigned long len,
- unsigned long prot, unsigned long flags,
- int fd, unsigned long off)
-{
- if (off & ~PAGE_MASK)
- return -EINVAL;
- return do_mmap2(addr, len, prot, flags, fd, off>>PAGE_SHIFT);
-}
-
-/*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
- */
-asmlinkage int sys_ipc(uint call, int first, int second,
- int third, void __user *ptr, long fifth)
-{
- int version, ret;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- if (call <= SEMCTL)
- switch (call) {
- case SEMOP:
- return sys_semtimedop(first, (struct sembuf __user *)ptr,
- second, NULL);
- case SEMTIMEDOP:
- return sys_semtimedop(first, (struct sembuf __user *)ptr,
- second,
- (const struct timespec __user *)fifth);
- case SEMGET:
- return sys_semget (first, second, third);
- case SEMCTL: {
- union semun fourth;
- if (!ptr)
- return -EINVAL;
- if (get_user(fourth.__pad, (void * __user *) ptr))
- return -EFAULT;
- return sys_semctl (first, second, third, fourth);
- }
- default:
- return -EINVAL;
- }
-
- if (call <= MSGCTL)
- switch (call) {
- case MSGSND:
- return sys_msgsnd (first, (struct msgbuf __user *) ptr,
- second, third);
- case MSGRCV:
- switch (version) {
- case 0: {
- struct ipc_kludge tmp;
- if (!ptr)
- return -EINVAL;
-
- if (copy_from_user(&tmp,
- (struct ipc_kludge __user *) ptr,
- sizeof (tmp)))
- return -EFAULT;
- return sys_msgrcv (first, tmp.msgp, second,
- tmp.msgtyp, third);
- }
- default:
- return sys_msgrcv (first,
- (struct msgbuf __user *) ptr,
- second, fifth, third);
- }
- case MSGGET:
- return sys_msgget ((key_t) first, second);
- case MSGCTL:
- return sys_msgctl (first, second,
- (struct msqid_ds __user *) ptr);
- default:
- return -EINVAL;
- }
- if (call <= SHMCTL)
- switch (call) {
- case SHMAT:
- switch (version) {
- default: {
- ulong raddr;
- ret = do_shmat (first, (char __user *) ptr,
- second, &raddr);
- if (ret)
- return ret;
- return put_user (raddr, (ulong __user *) third);
- }
- case 1: /* iBCS2 emulator entry point */
- if (!segment_eq(get_fs(), get_ds()))
- return -EINVAL;
- return do_shmat (first, (char __user *) ptr,
- second, (ulong *) third);
- }
- case SHMDT:
- return sys_shmdt ((char __user *)ptr);
- case SHMGET:
- return sys_shmget (first, second, third);
- case SHMCTL:
- return sys_shmctl (first, second,
- (struct shmid_ds __user *) ptr);
- default:
- return -EINVAL;
- }
-
- return -EINVAL;
-}
-
-asmlinkage int sys_uname(struct old_utsname * name)
-{
- int err;
- if (!name)
- return -EFAULT;
- down_read(&uts_sem);
- err = copy_to_user(name, utsname(), sizeof (*name));
- up_read(&uts_sem);
- return err?-EFAULT:0;
-}
-
-/*
- * Do a system call from kernel instead of calling sys_execve so we
- * end up with proper pt_regs.
- */
-int kernel_execve(const char *filename, char *const argv[], char *const envp[])
-{
- register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_execve);
- register unsigned long __sc2 __asm__ ("r2") = (unsigned long) filename;
- register unsigned long __sc3 __asm__ ("r3") = (unsigned long) argv;
- register unsigned long __sc4 __asm__ ("r4") = (unsigned long) envp;
- __asm__ __volatile__ ("trapa %1 !\t\t\t execve(%2,%3,%4)"
- : "=r" (__sc0)
- : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) );
- __asm__ __volatile__ ("!dummy %0 %1 %2 %3"
- : : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) : "memory");
- return __sc0;
-}
diff --git a/arch/sh64/kernel/syscalls.S b/arch/sh64/kernel/syscalls.S
deleted file mode 100644
index abb94c05d07..00000000000
--- a/arch/sh64/kernel/syscalls.S
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * arch/sh64/kernel/syscalls.S
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2004 - 2007 Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/sys.h>
-
- .section .data, "aw"
- .balign 32
-
-/*
- * System calls jump table
- */
- .globl sys_call_table
-sys_call_table:
- .long sys_restart_syscall /* 0 - old "setup()" system call */
- .long sys_exit
- .long sys_fork
- .long sys_read
- .long sys_write
- .long sys_open /* 5 */
- .long sys_close
- .long sys_waitpid
- .long sys_creat
- .long sys_link
- .long sys_unlink /* 10 */
- .long sys_execve
- .long sys_chdir
- .long sys_time
- .long sys_mknod
- .long sys_chmod /* 15 */
- .long sys_lchown16
- .long sys_ni_syscall /* old break syscall holder */
- .long sys_stat
- .long sys_lseek
- .long sys_getpid /* 20 */
- .long sys_mount
- .long sys_oldumount
- .long sys_setuid16
- .long sys_getuid16
- .long sys_stime /* 25 */
- .long sh64_ptrace
- .long sys_alarm
- .long sys_fstat
- .long sys_pause
- .long sys_utime /* 30 */
- .long sys_ni_syscall /* old stty syscall holder */
- .long sys_ni_syscall /* old gtty syscall holder */
- .long sys_access
- .long sys_nice
- .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */
- .long sys_sync
- .long sys_kill
- .long sys_rename
- .long sys_mkdir
- .long sys_rmdir /* 40 */
- .long sys_dup
- .long sys_pipe
- .long sys_times
- .long sys_ni_syscall /* old prof syscall holder */
- .long sys_brk /* 45 */
- .long sys_setgid16
- .long sys_getgid16
- .long sys_signal
- .long sys_geteuid16
- .long sys_getegid16 /* 50 */
- .long sys_acct
- .long sys_umount /* recycled never used phys( */
- .long sys_ni_syscall /* old lock syscall holder */
- .long sys_ioctl
- .long sys_fcntl /* 55 */
- .long sys_ni_syscall /* old mpx syscall holder */
- .long sys_setpgid
- .long sys_ni_syscall /* old ulimit syscall holder */
- .long sys_ni_syscall /* sys_olduname */
- .long sys_umask /* 60 */
- .long sys_chroot
- .long sys_ustat
- .long sys_dup2
- .long sys_getppid
- .long sys_getpgrp /* 65 */
- .long sys_setsid
- .long sys_sigaction
- .long sys_sgetmask
- .long sys_ssetmask
- .long sys_setreuid16 /* 70 */
- .long sys_setregid16
- .long sys_sigsuspend
- .long sys_sigpending
- .long sys_sethostname
- .long sys_setrlimit /* 75 */
- .long sys_old_getrlimit
- .long sys_getrusage
- .long sys_gettimeofday
- .long sys_settimeofday
- .long sys_getgroups16 /* 80 */
- .long sys_setgroups16
- .long sys_ni_syscall /* sys_oldselect */
- .long sys_symlink
- .long sys_lstat
- .long sys_readlink /* 85 */
- .long sys_uselib
- .long sys_swapon
- .long sys_reboot
- .long old_readdir
- .long old_mmap /* 90 */
- .long sys_munmap
- .long sys_truncate
- .long sys_ftruncate
- .long sys_fchmod
- .long sys_fchown16 /* 95 */
- .long sys_getpriority
- .long sys_setpriority
- .long sys_ni_syscall /* old profil syscall holder */
- .long sys_statfs
- .long sys_fstatfs /* 100 */
- .long sys_ni_syscall /* ioperm */
- .long sys_socketcall /* Obsolete implementation of socket syscall */
- .long sys_syslog
- .long sys_setitimer
- .long sys_getitimer /* 105 */
- .long sys_newstat
- .long sys_newlstat
- .long sys_newfstat
- .long sys_uname
- .long sys_ni_syscall /* 110 */ /* iopl */
- .long sys_vhangup
- .long sys_ni_syscall /* idle */
- .long sys_ni_syscall /* vm86old */
- .long sys_wait4
- .long sys_swapoff /* 115 */
- .long sys_sysinfo
- .long sys_ipc /* Obsolete ipc syscall implementation */
- .long sys_fsync
- .long sys_sigreturn
- .long sys_clone /* 120 */
- .long sys_setdomainname
- .long sys_newuname
- .long sys_ni_syscall /* sys_modify_ldt */
- .long sys_adjtimex
- .long sys_mprotect /* 125 */
- .long sys_sigprocmask
- .long sys_ni_syscall /* old "create_module" */
- .long sys_init_module
- .long sys_delete_module
- .long sys_ni_syscall /* 130: old "get_kernel_syms" */
- .long sys_quotactl
- .long sys_getpgid
- .long sys_fchdir
- .long sys_bdflush
- .long sys_sysfs /* 135 */
- .long sys_personality
- .long sys_ni_syscall /* for afs_syscall */
- .long sys_setfsuid16
- .long sys_setfsgid16
- .long sys_llseek /* 140 */
- .long sys_getdents
- .long sys_select
- .long sys_flock
- .long sys_msync
- .long sys_readv /* 145 */
- .long sys_writev
- .long sys_getsid
- .long sys_fdatasync
- .long sys_sysctl
- .long sys_mlock /* 150 */
- .long sys_munlock
- .long sys_mlockall
- .long sys_munlockall
- .long sys_sched_setparam
- .long sys_sched_getparam /* 155 */
- .long sys_sched_setscheduler
- .long sys_sched_getscheduler
- .long sys_sched_yield
- .long sys_sched_get_priority_max
- .long sys_sched_get_priority_min /* 160 */
- .long sys_sched_rr_get_interval
- .long sys_nanosleep
- .long sys_mremap
- .long sys_setresuid16
- .long sys_getresuid16 /* 165 */
- .long sys_ni_syscall /* vm86 */
- .long sys_ni_syscall /* old "query_module" */
- .long sys_poll
- .long sys_nfsservctl
- .long sys_setresgid16 /* 170 */
- .long sys_getresgid16
- .long sys_prctl
- .long sys_rt_sigreturn
- .long sys_rt_sigaction
- .long sys_rt_sigprocmask /* 175 */
- .long sys_rt_sigpending
- .long sys_rt_sigtimedwait
- .long sys_rt_sigqueueinfo
- .long sys_rt_sigsuspend
- .long sys_pread64 /* 180 */
- .long sys_pwrite64
- .long sys_chown16
- .long sys_getcwd
- .long sys_capget
- .long sys_capset /* 185 */
- .long sys_sigaltstack
- .long sys_sendfile
- .long sys_ni_syscall /* streams1 */
- .long sys_ni_syscall /* streams2 */
- .long sys_vfork /* 190 */
- .long sys_getrlimit
- .long sys_mmap2
- .long sys_truncate64
- .long sys_ftruncate64
- .long sys_stat64 /* 195 */
- .long sys_lstat64
- .long sys_fstat64
- .long sys_lchown
- .long sys_getuid
- .long sys_getgid /* 200 */
- .long sys_geteuid
- .long sys_getegid
- .long sys_setreuid
- .long sys_setregid
- .long sys_getgroups /* 205 */
- .long sys_setgroups
- .long sys_fchown
- .long sys_setresuid
- .long sys_getresuid
- .long sys_setresgid /* 210 */
- .long sys_getresgid
- .long sys_chown
- .long sys_setuid
- .long sys_setgid
- .long sys_setfsuid /* 215 */
- .long sys_setfsgid
- .long sys_pivot_root
- .long sys_mincore
- .long sys_madvise
- /* Broken-out socket family (maintain backwards compatibility in syscall
- numbering with 2.4) */
- .long sys_socket /* 220 */
- .long sys_bind
- .long sys_connect
- .long sys_listen
- .long sys_accept
- .long sys_getsockname /* 225 */
- .long sys_getpeername
- .long sys_socketpair
- .long sys_send
- .long sys_sendto
- .long sys_recv /* 230*/
- .long sys_recvfrom
- .long sys_shutdown
- .long sys_setsockopt
- .long sys_getsockopt
- .long sys_sendmsg /* 235 */
- .long sys_recvmsg
- /* Broken-out IPC family (maintain backwards compatibility in syscall
- numbering with 2.4) */
- .long sys_semop
- .long sys_semget
- .long sys_semctl
- .long sys_msgsnd /* 240 */
- .long sys_msgrcv
- .long sys_msgget
- .long sys_msgctl
- .long sys_shmat
- .long sys_shmdt /* 245 */
- .long sys_shmget
- .long sys_shmctl
- /* Rest of syscalls listed in 2.4 i386 unistd.h */
- .long sys_getdents64
- .long sys_fcntl64
- .long sys_ni_syscall /* 250 reserved for TUX */
- .long sys_ni_syscall /* Reserved for Security */
- .long sys_gettid
- .long sys_readahead
- .long sys_setxattr
- .long sys_lsetxattr /* 255 */
- .long sys_fsetxattr
- .long sys_getxattr
- .long sys_lgetxattr
- .long sys_fgetxattr
- .long sys_listxattr /* 260 */
- .long sys_llistxattr
- .long sys_flistxattr
- .long sys_removexattr
- .long sys_lremovexattr
- .long sys_fremovexattr /* 265 */
- .long sys_tkill
- .long sys_sendfile64
- .long sys_futex
- .long sys_sched_setaffinity
- .long sys_sched_getaffinity /* 270 */
- .long sys_ni_syscall
- .long sys_ni_syscall
- .long sys_io_setup
- .long sys_io_destroy
- .long sys_io_getevents /* 275 */
- .long sys_io_submit
- .long sys_io_cancel
- .long sys_fadvise64
- .long sys_ni_syscall
- .long sys_exit_group /* 280 */
- /* Rest of new 2.6 syscalls */
- .long sys_lookup_dcookie
- .long sys_epoll_create
- .long sys_epoll_ctl
- .long sys_epoll_wait
- .long sys_remap_file_pages /* 285 */
- .long sys_set_tid_address
- .long sys_timer_create
- .long sys_timer_settime
- .long sys_timer_gettime
- .long sys_timer_getoverrun /* 290 */
- .long sys_timer_delete
- .long sys_clock_settime
- .long sys_clock_gettime
- .long sys_clock_getres
- .long sys_clock_nanosleep /* 295 */
- .long sys_statfs64
- .long sys_fstatfs64
- .long sys_tgkill
- .long sys_utimes
- .long sys_fadvise64_64 /* 300 */
- .long sys_ni_syscall /* Reserved for vserver */
- .long sys_ni_syscall /* Reserved for mbind */
- .long sys_ni_syscall /* get_mempolicy */
- .long sys_ni_syscall /* set_mempolicy */
- .long sys_mq_open /* 305 */
- .long sys_mq_unlink
- .long sys_mq_timedsend
- .long sys_mq_timedreceive
- .long sys_mq_notify
- .long sys_mq_getsetattr /* 310 */
- .long sys_ni_syscall /* Reserved for kexec */
- .long sys_waitid
- .long sys_add_key
- .long sys_request_key
- .long sys_keyctl /* 315 */
- .long sys_ioprio_set
- .long sys_ioprio_get
- .long sys_inotify_init
- .long sys_inotify_add_watch
- .long sys_inotify_rm_watch /* 320 */
- .long sys_ni_syscall
- .long sys_migrate_pages
- .long sys_openat
- .long sys_mkdirat
- .long sys_mknodat /* 325 */
- .long sys_fchownat
- .long sys_futimesat
- .long sys_fstatat64
- .long sys_unlinkat
- .long sys_renameat /* 330 */
- .long sys_linkat
- .long sys_symlinkat
- .long sys_readlinkat
- .long sys_fchmodat
- .long sys_faccessat /* 335 */
- .long sys_pselect6
- .long sys_ppoll
- .long sys_unshare
- .long sys_set_robust_list
- .long sys_get_robust_list /* 340 */
- .long sys_splice
- .long sys_sync_file_range
- .long sys_tee
- .long sys_vmsplice
- .long sys_move_pages /* 345 */
- .long sys_getcpu
- .long sys_epoll_pwait
- .long sys_utimensat
- .long sys_signalfd
- .long sys_timerfd /* 350 */
- .long sys_eventfd
- .long sys_fallocate
diff --git a/arch/sh64/kernel/time.c b/arch/sh64/kernel/time.c
deleted file mode 100644
index 06f3c179e34..00000000000
--- a/arch/sh64/kernel/time.c
+++ /dev/null
@@ -1,593 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/time.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- * Copyright (C) 2003 Richard Curnow
- *
- * Original TMU/RTC code taken from sh version.
- * Copyright (C) 1999 Tetsuya Okada & Niibe Yutaka
- * Some code taken from i386 version.
- * Copyright (C) 1991, 1992, 1995 Linus Torvalds
- */
-
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/profile.h>
-#include <linux/smp.h>
-#include <linux/module.h>
-#include <linux/bcd.h>
-
-#include <asm/registers.h> /* required by inline __asm__ stmt. */
-
-#include <asm/processor.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/delay.h>
-
-#include <linux/timex.h>
-#include <linux/irq.h>
-#include <asm/hardware.h>
-
-#define TMU_TOCR_INIT 0x00
-#define TMU0_TCR_INIT 0x0020
-#define TMU_TSTR_INIT 1
-#define TMU_TSTR_OFF 0
-
-/* RCR1 Bits */
-#define RCR1_CF 0x80 /* Carry Flag */
-#define RCR1_CIE 0x10 /* Carry Interrupt Enable */
-#define RCR1_AIE 0x08 /* Alarm Interrupt Enable */
-#define RCR1_AF 0x01 /* Alarm Flag */
-
-/* RCR2 Bits */
-#define RCR2_PEF 0x80 /* PEriodic interrupt Flag */
-#define RCR2_PESMASK 0x70 /* Periodic interrupt Set */
-#define RCR2_RTCEN 0x08 /* ENable RTC */
-#define RCR2_ADJ 0x04 /* ADJustment (30-second) */
-#define RCR2_RESET 0x02 /* Reset bit */
-#define RCR2_START 0x01 /* Start bit */
-
-/* Clock, Power and Reset Controller */
-#define CPRC_BLOCK_OFF 0x01010000
-#define CPRC_BASE PHYS_PERIPHERAL_BLOCK + CPRC_BLOCK_OFF
-
-#define FRQCR (cprc_base+0x0)
-#define WTCSR (cprc_base+0x0018)
-#define STBCR (cprc_base+0x0030)
-
-/* Time Management Unit */
-#define TMU_BLOCK_OFF 0x01020000
-#define TMU_BASE PHYS_PERIPHERAL_BLOCK + TMU_BLOCK_OFF
-#define TMU0_BASE tmu_base + 0x8 + (0xc * 0x0)
-#define TMU1_BASE tmu_base + 0x8 + (0xc * 0x1)
-#define TMU2_BASE tmu_base + 0x8 + (0xc * 0x2)
-
-#define TMU_TOCR tmu_base+0x0 /* Byte access */
-#define TMU_TSTR tmu_base+0x4 /* Byte access */
-
-#define TMU0_TCOR TMU0_BASE+0x0 /* Long access */
-#define TMU0_TCNT TMU0_BASE+0x4 /* Long access */
-#define TMU0_TCR TMU0_BASE+0x8 /* Word access */
-
-/* Real Time Clock */
-#define RTC_BLOCK_OFF 0x01040000
-#define RTC_BASE PHYS_PERIPHERAL_BLOCK + RTC_BLOCK_OFF
-
-#define R64CNT rtc_base+0x00
-#define RSECCNT rtc_base+0x04
-#define RMINCNT rtc_base+0x08
-#define RHRCNT rtc_base+0x0c
-#define RWKCNT rtc_base+0x10
-#define RDAYCNT rtc_base+0x14
-#define RMONCNT rtc_base+0x18
-#define RYRCNT rtc_base+0x1c /* 16bit */
-#define RSECAR rtc_base+0x20
-#define RMINAR rtc_base+0x24
-#define RHRAR rtc_base+0x28
-#define RWKAR rtc_base+0x2c
-#define RDAYAR rtc_base+0x30
-#define RMONAR rtc_base+0x34
-#define RCR1 rtc_base+0x38
-#define RCR2 rtc_base+0x3c
-
-#define TICK_SIZE (tick_nsec / 1000)
-
-static unsigned long tmu_base, rtc_base;
-unsigned long cprc_base;
-
-/* Variables to allow interpolation of time of day to resolution better than a
- * jiffy. */
-
-/* This is effectively protected by xtime_lock */
-static unsigned long ctc_last_interrupt;
-static unsigned long long usecs_per_jiffy = 1000000/HZ; /* Approximation */
-
-#define CTC_JIFFY_SCALE_SHIFT 40
-
-/* 2**CTC_JIFFY_SCALE_SHIFT / ctc_ticks_per_jiffy */
-static unsigned long long scaled_recip_ctc_ticks_per_jiffy;
-
-/* Estimate number of microseconds that have elapsed since the last timer tick,
- by scaling the delta that has occurred in the CTC register.
-
- WARNING WARNING WARNING : This algorithm relies on the CTC decrementing at
- the CPU clock rate. If the CPU sleeps, the CTC stops counting. Bear this
- in mind if enabling SLEEP_WORKS in process.c. In that case, this algorithm
- probably needs to use TMU.TCNT0 instead. This will work even if the CPU is
- sleeping, though will be coarser.
-
- FIXME : What if usecs_per_tick is moving around too much, e.g. if an adjtime
- is running or if the freq or tick arguments of adjtimex are modified after
- we have calibrated the scaling factor? This will result in either a jump at
- the end of a tick period, or a wrap backwards at the start of the next one,
- if the application is reading the time of day often enough. I think we
- ought to do better than this. For this reason, usecs_per_jiffy is left
- separated out in the calculation below. This allows some future hook into
- the adjtime-related stuff in kernel/timer.c to remove this hazard.
-
-*/
-
-static unsigned long usecs_since_tick(void)
-{
- unsigned long long current_ctc;
- long ctc_ticks_since_interrupt;
- unsigned long long ull_ctc_ticks_since_interrupt;
- unsigned long result;
-
- unsigned long long mul1_out;
- unsigned long long mul1_out_high;
- unsigned long long mul2_out_low, mul2_out_high;
-
- /* Read CTC register */
- asm ("getcon cr62, %0" : "=r" (current_ctc));
- /* Note, the CTC counts down on each CPU clock, not up.
- Note(2), use long type to get correct wraparound arithmetic when
- the counter crosses zero. */
- ctc_ticks_since_interrupt = (long) ctc_last_interrupt - (long) current_ctc;
- ull_ctc_ticks_since_interrupt = (unsigned long long) ctc_ticks_since_interrupt;
-
- /* Inline assembly to do 32x32x32->64 multiplier */
- asm volatile ("mulu.l %1, %2, %0" :
- "=r" (mul1_out) :
- "r" (ull_ctc_ticks_since_interrupt), "r" (usecs_per_jiffy));
-
- mul1_out_high = mul1_out >> 32;
-
- asm volatile ("mulu.l %1, %2, %0" :
- "=r" (mul2_out_low) :
- "r" (mul1_out), "r" (scaled_recip_ctc_ticks_per_jiffy));
-
-#if 1
- asm volatile ("mulu.l %1, %2, %0" :
- "=r" (mul2_out_high) :
- "r" (mul1_out_high), "r" (scaled_recip_ctc_ticks_per_jiffy));
-#endif
-
- result = (unsigned long) (((mul2_out_high << 32) + mul2_out_low) >> CTC_JIFFY_SCALE_SHIFT);
-
- return result;
-}
-
-void do_gettimeofday(struct timeval *tv)
-{
- unsigned long flags;
- unsigned long seq;
- unsigned long usec, sec;
-
- do {
- seq = read_seqbegin_irqsave(&xtime_lock, flags);
- usec = usecs_since_tick();
- sec = xtime.tv_sec;
- usec += xtime.tv_nsec / 1000;
- } while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
- while (usec >= 1000000) {
- usec -= 1000000;
- sec++;
- }
-
- tv->tv_sec = sec;
- tv->tv_usec = usec;
-}
-
-int do_settimeofday(struct timespec *tv)
-{
- time_t wtm_sec, sec = tv->tv_sec;
- long wtm_nsec, nsec = tv->tv_nsec;
-
- if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
- return -EINVAL;
-
- write_seqlock_irq(&xtime_lock);
- /*
- * This is revolting. We need to set "xtime" correctly. However, the
- * value in this location is the value at the most recent update of
- * wall time. Discover what correction gettimeofday() would have
- * made, and then undo it!
- */
- nsec -= 1000 * usecs_since_tick();
-
- wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
- wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
- set_normalized_timespec(&xtime, sec, nsec);
- set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
-
- ntp_clear();
- write_sequnlock_irq(&xtime_lock);
- clock_was_set();
-
- return 0;
-}
-EXPORT_SYMBOL(do_settimeofday);
-
-static int set_rtc_time(unsigned long nowtime)
-{
- int retval = 0;
- int real_seconds, real_minutes, cmos_minutes;
-
- ctrl_outb(RCR2_RESET, RCR2); /* Reset pre-scaler & stop RTC */
-
- cmos_minutes = ctrl_inb(RMINCNT);
- BCD_TO_BIN(cmos_minutes);
-
- /*
- * since we're only adjusting minutes and seconds,
- * don't interfere with hour overflow. This avoids
- * messing with unknown time zones but requires your
- * RTC not to be off by more than 15 minutes
- */
- real_seconds = nowtime % 60;
- real_minutes = nowtime / 60;
- if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
- real_minutes += 30; /* correct for half hour time zone */
- real_minutes %= 60;
-
- if (abs(real_minutes - cmos_minutes) < 30) {
- BIN_TO_BCD(real_seconds);
- BIN_TO_BCD(real_minutes);
- ctrl_outb(real_seconds, RSECCNT);
- ctrl_outb(real_minutes, RMINCNT);
- } else {
- printk(KERN_WARNING
- "set_rtc_time: can't update from %d to %d\n",
- cmos_minutes, real_minutes);
- retval = -1;
- }
-
- ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2); /* Start RTC */
-
- return retval;
-}
-
-/* last time the RTC clock got updated */
-static long last_rtc_update = 0;
-
-/*
- * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
- */
-static inline void do_timer_interrupt(void)
-{
- unsigned long long current_ctc;
- asm ("getcon cr62, %0" : "=r" (current_ctc));
- ctc_last_interrupt = (unsigned long) current_ctc;
-
- do_timer(1);
-#ifndef CONFIG_SMP
- update_process_times(user_mode(get_irq_regs()));
-#endif
- if (current->pid)
- profile_tick(CPU_PROFILING);
-
-#ifdef CONFIG_HEARTBEAT
- {
- extern void heartbeat(void);
-
- heartbeat();
- }
-#endif
-
- /*
- * If we have an externally synchronized Linux clock, then update
- * RTC clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
- * called as close as possible to 500 ms before the new second starts.
- */
- if (ntp_synced() &&
- xtime.tv_sec > last_rtc_update + 660 &&
- (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
- (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
- if (set_rtc_time(xtime.tv_sec) == 0)
- last_rtc_update = xtime.tv_sec;
- else
- last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */
- }
-}
-
-/*
- * This is the same as the above, except we _also_ save the current
- * Time Stamp Counter value at the time of the timer interrupt, so that
- * we later on can estimate the time of day more exactly.
- */
-static irqreturn_t timer_interrupt(int irq, void *dev_id)
-{
- unsigned long timer_status;
-
- /* Clear UNF bit */
- timer_status = ctrl_inw(TMU0_TCR);
- timer_status &= ~0x100;
- ctrl_outw(timer_status, TMU0_TCR);
-
- /*
- * Here we are in the timer irq handler. We just have irqs locally
- * disabled but we don't know if the timer_bh is running on the other
- * CPU. We need to avoid to SMP race with it. NOTE: we don' t need
- * the irq version of write_lock because as just said we have irq
- * locally disabled. -arca
- */
- write_lock(&xtime_lock);
- do_timer_interrupt();
- write_unlock(&xtime_lock);
-
- return IRQ_HANDLED;
-}
-
-static unsigned long get_rtc_time(void)
-{
- unsigned int sec, min, hr, wk, day, mon, yr, yr100;
-
- again:
- do {
- ctrl_outb(0, RCR1); /* Clear CF-bit */
- sec = ctrl_inb(RSECCNT);
- min = ctrl_inb(RMINCNT);
- hr = ctrl_inb(RHRCNT);
- wk = ctrl_inb(RWKCNT);
- day = ctrl_inb(RDAYCNT);
- mon = ctrl_inb(RMONCNT);
- yr = ctrl_inw(RYRCNT);
- yr100 = (yr >> 8);
- yr &= 0xff;
- } while ((ctrl_inb(RCR1) & RCR1_CF) != 0);
-
- BCD_TO_BIN(yr100);
- BCD_TO_BIN(yr);
- BCD_TO_BIN(mon);
- BCD_TO_BIN(day);
- BCD_TO_BIN(hr);
- BCD_TO_BIN(min);
- BCD_TO_BIN(sec);
-
- if (yr > 99 || mon < 1 || mon > 12 || day > 31 || day < 1 ||
- hr > 23 || min > 59 || sec > 59) {
- printk(KERN_ERR
- "SH RTC: invalid value, resetting to 1 Jan 2000\n");
- ctrl_outb(RCR2_RESET, RCR2); /* Reset & Stop */
- ctrl_outb(0, RSECCNT);
- ctrl_outb(0, RMINCNT);
- ctrl_outb(0, RHRCNT);
- ctrl_outb(6, RWKCNT);
- ctrl_outb(1, RDAYCNT);
- ctrl_outb(1, RMONCNT);
- ctrl_outw(0x2000, RYRCNT);
- ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2); /* Start */
- goto again;
- }
-
- return mktime(yr100 * 100 + yr, mon, day, hr, min, sec);
-}
-
-static __init unsigned int get_cpu_hz(void)
-{
- unsigned int count;
- unsigned long __dummy;
- unsigned long ctc_val_init, ctc_val;
-
- /*
- ** Regardless the toolchain, force the compiler to use the
- ** arbitrary register r3 as a clock tick counter.
- ** NOTE: r3 must be in accordance with sh64_rtc_interrupt()
- */
- register unsigned long long __rtc_irq_flag __asm__ ("r3");
-
- local_irq_enable();
- do {} while (ctrl_inb(R64CNT) != 0);
- ctrl_outb(RCR1_CIE, RCR1); /* Enable carry interrupt */
-
- /*
- * r3 is arbitrary. CDC does not support "=z".
- */
- ctc_val_init = 0xffffffff;
- ctc_val = ctc_val_init;
-
- asm volatile("gettr tr0, %1\n\t"
- "putcon %0, " __CTC "\n\t"
- "and %2, r63, %2\n\t"
- "pta $+4, tr0\n\t"
- "beq/l %2, r63, tr0\n\t"
- "ptabs %1, tr0\n\t"
- "getcon " __CTC ", %0\n\t"
- : "=r"(ctc_val), "=r" (__dummy), "=r" (__rtc_irq_flag)
- : "0" (0));
- local_irq_disable();
- /*
- * SH-3:
- * CPU clock = 4 stages * loop
- * tst rm,rm if id ex
- * bt/s 1b if id ex
- * add #1,rd if id ex
- * (if) pipe line stole
- * tst rm,rm if id ex
- * ....
- *
- *
- * SH-4:
- * CPU clock = 6 stages * loop
- * I don't know why.
- * ....
- *
- * SH-5:
- * Use CTC register to count. This approach returns the right value
- * even if the I-cache is disabled (e.g. whilst debugging.)
- *
- */
-
- count = ctc_val_init - ctc_val; /* CTC counts down */
-
-#if defined (CONFIG_SH_SIMULATOR)
- /*
- * Let's pretend we are a 5MHz SH-5 to avoid a too
- * little timer interval. Also to keep delay
- * calibration within a reasonable time.
- */
- return 5000000;
-#else
- /*
- * This really is count by the number of clock cycles
- * by the ratio between a complete R64CNT
- * wrap-around (128) and CUI interrupt being raised (64).
- */
- return count*2;
-#endif
-}
-
-static irqreturn_t sh64_rtc_interrupt(int irq, void *dev_id)
-{
- struct pt_regs *regs = get_irq_regs();
-
- ctrl_outb(0, RCR1); /* Disable Carry Interrupts */
- regs->regs[3] = 1; /* Using r3 */
-
- return IRQ_HANDLED;
-}
-
-static struct irqaction irq0 = {
- .handler = timer_interrupt,
- .flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
- .name = "timer",
-};
-static struct irqaction irq1 = {
- .handler = sh64_rtc_interrupt,
- .flags = IRQF_DISABLED,
- .mask = CPU_MASK_NONE,
- .name = "rtc",
-};
-
-void __init time_init(void)
-{
- unsigned int cpu_clock, master_clock, bus_clock, module_clock;
- unsigned long interval;
- unsigned long frqcr, ifc, pfc;
- static int ifc_table[] = { 2, 4, 6, 8, 10, 12, 16, 24 };
-#define bfc_table ifc_table /* Same */
-#define pfc_table ifc_table /* Same */
-
- tmu_base = onchip_remap(TMU_BASE, 1024, "TMU");
- if (!tmu_base) {
- panic("Unable to remap TMU\n");
- }
-
- rtc_base = onchip_remap(RTC_BASE, 1024, "RTC");
- if (!rtc_base) {
- panic("Unable to remap RTC\n");
- }
-
- cprc_base = onchip_remap(CPRC_BASE, 1024, "CPRC");
- if (!cprc_base) {
- panic("Unable to remap CPRC\n");
- }
-
- xtime.tv_sec = get_rtc_time();
- xtime.tv_nsec = 0;
-
- setup_irq(TIMER_IRQ, &irq0);
- setup_irq(RTC_IRQ, &irq1);
-
- /* Check how fast it is.. */
- cpu_clock = get_cpu_hz();
-
- /* Note careful order of operations to maintain reasonable precision and avoid overflow. */
- scaled_recip_ctc_ticks_per_jiffy = ((1ULL << CTC_JIFFY_SCALE_SHIFT) / (unsigned long long)(cpu_clock / HZ));
-
- disable_irq(RTC_IRQ);
-
- printk("CPU clock: %d.%02dMHz\n",
- (cpu_clock / 1000000), (cpu_clock % 1000000)/10000);
- {
- unsigned short bfc;
- frqcr = ctrl_inl(FRQCR);
- ifc = ifc_table[(frqcr>> 6) & 0x0007];
- bfc = bfc_table[(frqcr>> 3) & 0x0007];
- pfc = pfc_table[(frqcr>> 12) & 0x0007];
- master_clock = cpu_clock * ifc;
- bus_clock = master_clock/bfc;
- }
-
- printk("Bus clock: %d.%02dMHz\n",
- (bus_clock/1000000), (bus_clock % 1000000)/10000);
- module_clock = master_clock/pfc;
- printk("Module clock: %d.%02dMHz\n",
- (module_clock/1000000), (module_clock % 1000000)/10000);
- interval = (module_clock/(HZ*4));
-
- printk("Interval = %ld\n", interval);
-
- current_cpu_data.cpu_clock = cpu_clock;
- current_cpu_data.master_clock = master_clock;
- current_cpu_data.bus_clock = bus_clock;
- current_cpu_data.module_clock = module_clock;
-
- /* Start TMU0 */
- ctrl_outb(TMU_TSTR_OFF, TMU_TSTR);
- ctrl_outb(TMU_TOCR_INIT, TMU_TOCR);
- ctrl_outw(TMU0_TCR_INIT, TMU0_TCR);
- ctrl_outl(interval, TMU0_TCOR);
- ctrl_outl(interval, TMU0_TCNT);
- ctrl_outb(TMU_TSTR_INIT, TMU_TSTR);
-}
-
-void enter_deep_standby(void)
-{
- /* Disable watchdog timer */
- ctrl_outl(0xa5000000, WTCSR);
- /* Configure deep standby on sleep */
- ctrl_outl(0x03, STBCR);
-
-#ifdef CONFIG_SH_ALPHANUMERIC
- {
- extern void mach_alphanum(int position, unsigned char value);
- extern void mach_alphanum_brightness(int setting);
- char halted[] = "Halted. ";
- int i;
- mach_alphanum_brightness(6); /* dimmest setting above off */
- for (i=0; i<8; i++) {
- mach_alphanum(i, halted[i]);
- }
- asm __volatile__ ("synco");
- }
-#endif
-
- asm __volatile__ ("sleep");
- asm __volatile__ ("synci");
- asm __volatile__ ("nop");
- asm __volatile__ ("nop");
- asm __volatile__ ("nop");
- asm __volatile__ ("nop");
- panic("Unexpected wakeup!\n");
-}
diff --git a/arch/sh64/kernel/traps.c b/arch/sh64/kernel/traps.c
deleted file mode 100644
index f32df3831f4..00000000000
--- a/arch/sh64/kernel/traps.c
+++ /dev/null
@@ -1,982 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh64/kernel/traps.c
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- * Copyright (C) 2003, 2004 Paul Mundt
- * Copyright (C) 2003, 2004 Richard Curnow
- *
- */
-
-/*
- * 'Traps.c' handles hardware traps and faults after we have saved some
- * state in 'entry.S'.
- */
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/kallsyms.h>
-#include <linux/interrupt.h>
-#include <linux/sysctl.h>
-#include <linux/module.h>
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/atomic.h>
-#include <asm/processor.h>
-#include <asm/pgtable.h>
-
-#undef DEBUG_EXCEPTION
-#ifdef DEBUG_EXCEPTION
-/* implemented in ../lib/dbg.c */
-extern void show_excp_regs(char *fname, int trapnr, int signr,
- struct pt_regs *regs);
-#else
-#define show_excp_regs(a, b, c, d)
-#endif
-
-static void do_unhandled_exception(int trapnr, int signr, char *str, char *fn_name,
- unsigned long error_code, struct pt_regs *regs, struct task_struct *tsk);
-
-#define DO_ERROR(trapnr, signr, str, name, tsk) \
-asmlinkage void do_##name(unsigned long error_code, struct pt_regs *regs) \
-{ \
- do_unhandled_exception(trapnr, signr, str, __stringify(name), error_code, regs, current); \
-}
-
-spinlock_t die_lock;
-
-void die(const char * str, struct pt_regs * regs, long err)
-{
- console_verbose();
- spin_lock_irq(&die_lock);
- printk("%s: %lx\n", str, (err & 0xffffff));
- show_regs(regs);
- spin_unlock_irq(&die_lock);
- do_exit(SIGSEGV);
-}
-
-static inline void die_if_kernel(const char * str, struct pt_regs * regs, long err)
-{
- if (!user_mode(regs))
- die(str, regs, err);
-}
-
-static void die_if_no_fixup(const char * str, struct pt_regs * regs, long err)
-{
- if (!user_mode(regs)) {
- const struct exception_table_entry *fixup;
- fixup = search_exception_tables(regs->pc);
- if (fixup) {
- regs->pc = fixup->fixup;
- return;
- }
- die(str, regs, err);
- }
-}
-
-DO_ERROR(13, SIGILL, "illegal slot instruction", illegal_slot_inst, current)
-DO_ERROR(87, SIGSEGV, "address error (exec)", address_error_exec, current)
-
-
-/* Implement misaligned load/store handling for kernel (and optionally for user
- mode too). Limitation : only SHmedia mode code is handled - there is no
- handling at all for misaligned accesses occurring in SHcompact code yet. */
-
-static int misaligned_fixup(struct pt_regs *regs);
-
-asmlinkage void do_address_error_load(unsigned long error_code, struct pt_regs *regs)
-{
- if (misaligned_fixup(regs) < 0) {
- do_unhandled_exception(7, SIGSEGV, "address error(load)",
- "do_address_error_load",
- error_code, regs, current);
- }
- return;
-}
-
-asmlinkage void do_address_error_store(unsigned long error_code, struct pt_regs *regs)
-{
- if (misaligned_fixup(regs) < 0) {
- do_unhandled_exception(8, SIGSEGV, "address error(store)",
- "do_address_error_store",
- error_code, regs, current);
- }
- return;
-}
-
-#if defined(CONFIG_SH64_ID2815_WORKAROUND)
-
-#define OPCODE_INVALID 0
-#define OPCODE_USER_VALID 1
-#define OPCODE_PRIV_VALID 2
-
-/* getcon/putcon - requires checking which control register is referenced. */
-#define OPCODE_CTRL_REG 3
-
-/* Table of valid opcodes for SHmedia mode.
- Form a 10-bit value by concatenating the major/minor opcodes i.e.
- opcode[31:26,20:16]. The 6 MSBs of this value index into the following
- array. The 4 LSBs select the bit-pair in the entry (bits 1:0 correspond to
- LSBs==4'b0000 etc). */
-static unsigned long shmedia_opcode_table[64] = {
- 0x55554044,0x54445055,0x15141514,0x14541414,0x00000000,0x10001000,0x01110055,0x04050015,
- 0x00000444,0xc0000000,0x44545515,0x40405555,0x55550015,0x10005555,0x55555505,0x04050000,
- 0x00000555,0x00000404,0x00040445,0x15151414,0x00000000,0x00000000,0x00000000,0x00000000,
- 0x00000055,0x40404444,0x00000404,0xc0009495,0x00000000,0x00000000,0x00000000,0x00000000,
- 0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
- 0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
- 0x80005050,0x04005055,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,0x55555555,
- 0x81055554,0x00000404,0x55555555,0x55555555,0x00000000,0x00000000,0x00000000,0x00000000
-};
-
-void do_reserved_inst(unsigned long error_code, struct pt_regs *regs)
-{
- /* Workaround SH5-101 cut2 silicon defect #2815 :
- in some situations, inter-mode branches from SHcompact -> SHmedia
- which should take ITLBMISS or EXECPROT exceptions at the target
- falsely take RESINST at the target instead. */
-
- unsigned long opcode = 0x6ff4fff0; /* guaranteed reserved opcode */
- unsigned long pc, aligned_pc;
- int get_user_error;
- int trapnr = 12;
- int signr = SIGILL;
- char *exception_name = "reserved_instruction";
-
- pc = regs->pc;
- if ((pc & 3) == 1) {
- /* SHmedia : check for defect. This requires executable vmas
- to be readable too. */
- aligned_pc = pc & ~3;
- if (!access_ok(VERIFY_READ, aligned_pc, sizeof(unsigned long))) {
- get_user_error = -EFAULT;
- } else {
- get_user_error = __get_user(opcode, (unsigned long *)aligned_pc);
- }
- if (get_user_error >= 0) {
- unsigned long index, shift;
- unsigned long major, minor, combined;
- unsigned long reserved_field;
- reserved_field = opcode & 0xf; /* These bits are currently reserved as zero in all valid opcodes */
- major = (opcode >> 26) & 0x3f;
- minor = (opcode >> 16) & 0xf;
- combined = (major << 4) | minor;
- index = major;
- shift = minor << 1;
- if (reserved_field == 0) {
- int opcode_state = (shmedia_opcode_table[index] >> shift) & 0x3;
- switch (opcode_state) {
- case OPCODE_INVALID:
- /* Trap. */
- break;
- case OPCODE_USER_VALID:
- /* Restart the instruction : the branch to the instruction will now be from an RTE
- not from SHcompact so the silicon defect won't be triggered. */
- return;
- case OPCODE_PRIV_VALID:
- if (!user_mode(regs)) {
- /* Should only ever get here if a module has
- SHcompact code inside it. If so, the same fix up is needed. */
- return; /* same reason */
- }
- /* Otherwise, user mode trying to execute a privileged instruction -
- fall through to trap. */
- break;
- case OPCODE_CTRL_REG:
- /* If in privileged mode, return as above. */
- if (!user_mode(regs)) return;
- /* In user mode ... */
- if (combined == 0x9f) { /* GETCON */
- unsigned long regno = (opcode >> 20) & 0x3f;
- if (regno >= 62) {
- return;
- }
- /* Otherwise, reserved or privileged control register, => trap */
- } else if (combined == 0x1bf) { /* PUTCON */
- unsigned long regno = (opcode >> 4) & 0x3f;
- if (regno >= 62) {
- return;
- }
- /* Otherwise, reserved or privileged control register, => trap */
- } else {
- /* Trap */
- }
- break;
- default:
- /* Fall through to trap. */
- break;
- }
- }
- /* fall through to normal resinst processing */
- } else {
- /* Error trying to read opcode. This typically means a
- real fault, not a RESINST any more. So change the
- codes. */
- trapnr = 87;
- exception_name = "address error (exec)";
- signr = SIGSEGV;
- }
- }
-
- do_unhandled_exception(trapnr, signr, exception_name, "do_reserved_inst", error_code, regs, current);
-}
-
-#else /* CONFIG_SH64_ID2815_WORKAROUND */
-
-/* If the workaround isn't needed, this is just a straightforward reserved
- instruction */
-DO_ERROR(12, SIGILL, "reserved instruction", reserved_inst, current)
-
-#endif /* CONFIG_SH64_ID2815_WORKAROUND */
-
-/* Called with interrupts disabled */
-asmlinkage void do_exception_error(unsigned long ex, struct pt_regs *regs)
-{
- PLS();
- show_excp_regs(__FUNCTION__, -1, -1, regs);
- die_if_kernel("exception", regs, ex);
-}
-
-int do_unknown_trapa(unsigned long scId, struct pt_regs *regs)
-{
- /* Syscall debug */
- printk("System call ID error: [0x1#args:8 #syscall:16 0x%lx]\n", scId);
-
- die_if_kernel("unknown trapa", regs, scId);
-
- return -ENOSYS;
-}
-
-void show_stack(struct task_struct *tsk, unsigned long *sp)
-{
-#ifdef CONFIG_KALLSYMS
- extern void sh64_unwind(struct pt_regs *regs);
- struct pt_regs *regs;
-
- regs = tsk ? tsk->thread.kregs : NULL;
-
- sh64_unwind(regs);
-#else
- printk(KERN_ERR "Can't backtrace on sh64 without CONFIG_KALLSYMS\n");
-#endif
-}
-
-void show_task(unsigned long *sp)
-{
- show_stack(NULL, sp);
-}
-
-void dump_stack(void)
-{
- show_task(NULL);
-}
-/* Needed by any user of WARN_ON in view of the defn in include/asm-sh/bug.h */
-EXPORT_SYMBOL(dump_stack);
-
-static void do_unhandled_exception(int trapnr, int signr, char *str, char *fn_name,
- unsigned long error_code, struct pt_regs *regs, struct task_struct *tsk)
-{
- show_excp_regs(fn_name, trapnr, signr, regs);
- tsk->thread.error_code = error_code;
- tsk->thread.trap_no = trapnr;
-
- if (user_mode(regs))
- force_sig(signr, tsk);
-
- die_if_no_fixup(str, regs, error_code);
-}
-
-static int read_opcode(unsigned long long pc, unsigned long *result_opcode, int from_user_mode)
-{
- int get_user_error;
- unsigned long aligned_pc;
- unsigned long opcode;
-
- if ((pc & 3) == 1) {
- /* SHmedia */
- aligned_pc = pc & ~3;
- if (from_user_mode) {
- if (!access_ok(VERIFY_READ, aligned_pc, sizeof(unsigned long))) {
- get_user_error = -EFAULT;
- } else {
- get_user_error = __get_user(opcode, (unsigned long *)aligned_pc);
- *result_opcode = opcode;
- }
- return get_user_error;
- } else {
- /* If the fault was in the kernel, we can either read
- * this directly, or if not, we fault.
- */
- *result_opcode = *(unsigned long *) aligned_pc;
- return 0;
- }
- } else if ((pc & 1) == 0) {
- /* SHcompact */
- /* TODO : provide handling for this. We don't really support
- user-mode SHcompact yet, and for a kernel fault, this would
- have to come from a module built for SHcompact. */
- return -EFAULT;
- } else {
- /* misaligned */
- return -EFAULT;
- }
-}
-
-static int address_is_sign_extended(__u64 a)
-{
- __u64 b;
-#if (NEFF == 32)
- b = (__u64)(__s64)(__s32)(a & 0xffffffffUL);
- return (b == a) ? 1 : 0;
-#else
-#error "Sign extend check only works for NEFF==32"
-#endif
-}
-
-static int generate_and_check_address(struct pt_regs *regs,
- __u32 opcode,
- int displacement_not_indexed,
- int width_shift,
- __u64 *address)
-{
- /* return -1 for fault, 0 for OK */
-
- __u64 base_address, addr;
- int basereg;
-
- basereg = (opcode >> 20) & 0x3f;
- base_address = regs->regs[basereg];
- if (displacement_not_indexed) {
- __s64 displacement;
- displacement = (opcode >> 10) & 0x3ff;
- displacement = ((displacement << 54) >> 54); /* sign extend */
- addr = (__u64)((__s64)base_address + (displacement << width_shift));
- } else {
- __u64 offset;
- int offsetreg;
- offsetreg = (opcode >> 10) & 0x3f;
- offset = regs->regs[offsetreg];
- addr = base_address + offset;
- }
-
- /* Check sign extended */
- if (!address_is_sign_extended(addr)) {
- return -1;
- }
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- /* Check accessible. For misaligned access in the kernel, assume the
- address is always accessible (and if not, just fault when the
- load/store gets done.) */
- if (user_mode(regs)) {
- if (addr >= TASK_SIZE) {
- return -1;
- }
- /* Do access_ok check later - it depends on whether it's a load or a store. */
- }
-#endif
-
- *address = addr;
- return 0;
-}
-
-/* Default value as for sh */
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-static int user_mode_unaligned_fixup_count = 10;
-static int user_mode_unaligned_fixup_enable = 1;
-#endif
-
-static int kernel_mode_unaligned_fixup_count = 32;
-
-static void misaligned_kernel_word_load(__u64 address, int do_sign_extend, __u64 *result)
-{
- unsigned short x;
- unsigned char *p, *q;
- p = (unsigned char *) (int) address;
- q = (unsigned char *) &x;
- q[0] = p[0];
- q[1] = p[1];
-
- if (do_sign_extend) {
- *result = (__u64)(__s64) *(short *) &x;
- } else {
- *result = (__u64) x;
- }
-}
-
-static void misaligned_kernel_word_store(__u64 address, __u64 value)
-{
- unsigned short x;
- unsigned char *p, *q;
- p = (unsigned char *) (int) address;
- q = (unsigned char *) &x;
-
- x = (__u16) value;
- p[0] = q[0];
- p[1] = q[1];
-}
-
-static int misaligned_load(struct pt_regs *regs,
- __u32 opcode,
- int displacement_not_indexed,
- int width_shift,
- int do_sign_extend)
-{
- /* Return -1 for a fault, 0 for OK */
- int error;
- int destreg;
- __u64 address;
-
- error = generate_and_check_address(regs, opcode,
- displacement_not_indexed, width_shift, &address);
- if (error < 0) {
- return error;
- }
-
- destreg = (opcode >> 4) & 0x3f;
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- if (user_mode(regs)) {
- __u64 buffer;
-
- if (!access_ok(VERIFY_READ, (unsigned long) address, 1UL<<width_shift)) {
- return -1;
- }
-
- if (__copy_user(&buffer, (const void *)(int)address, (1 << width_shift)) > 0) {
- return -1; /* fault */
- }
- switch (width_shift) {
- case 1:
- if (do_sign_extend) {
- regs->regs[destreg] = (__u64)(__s64) *(__s16 *) &buffer;
- } else {
- regs->regs[destreg] = (__u64) *(__u16 *) &buffer;
- }
- break;
- case 2:
- regs->regs[destreg] = (__u64)(__s64) *(__s32 *) &buffer;
- break;
- case 3:
- regs->regs[destreg] = buffer;
- break;
- default:
- printk("Unexpected width_shift %d in misaligned_load, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
- } else
-#endif
- {
- /* kernel mode - we can take short cuts since if we fault, it's a genuine bug */
- __u64 lo, hi;
-
- switch (width_shift) {
- case 1:
- misaligned_kernel_word_load(address, do_sign_extend, &regs->regs[destreg]);
- break;
- case 2:
- asm ("ldlo.l %1, 0, %0" : "=r" (lo) : "r" (address));
- asm ("ldhi.l %1, 3, %0" : "=r" (hi) : "r" (address));
- regs->regs[destreg] = lo | hi;
- break;
- case 3:
- asm ("ldlo.q %1, 0, %0" : "=r" (lo) : "r" (address));
- asm ("ldhi.q %1, 7, %0" : "=r" (hi) : "r" (address));
- regs->regs[destreg] = lo | hi;
- break;
-
- default:
- printk("Unexpected width_shift %d in misaligned_load, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
- }
-
- return 0;
-
-}
-
-static int misaligned_store(struct pt_regs *regs,
- __u32 opcode,
- int displacement_not_indexed,
- int width_shift)
-{
- /* Return -1 for a fault, 0 for OK */
- int error;
- int srcreg;
- __u64 address;
-
- error = generate_and_check_address(regs, opcode,
- displacement_not_indexed, width_shift, &address);
- if (error < 0) {
- return error;
- }
-
- srcreg = (opcode >> 4) & 0x3f;
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- if (user_mode(regs)) {
- __u64 buffer;
-
- if (!access_ok(VERIFY_WRITE, (unsigned long) address, 1UL<<width_shift)) {
- return -1;
- }
-
- switch (width_shift) {
- case 1:
- *(__u16 *) &buffer = (__u16) regs->regs[srcreg];
- break;
- case 2:
- *(__u32 *) &buffer = (__u32) regs->regs[srcreg];
- break;
- case 3:
- buffer = regs->regs[srcreg];
- break;
- default:
- printk("Unexpected width_shift %d in misaligned_store, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
-
- if (__copy_user((void *)(int)address, &buffer, (1 << width_shift)) > 0) {
- return -1; /* fault */
- }
- } else
-#endif
- {
- /* kernel mode - we can take short cuts since if we fault, it's a genuine bug */
- __u64 val = regs->regs[srcreg];
-
- switch (width_shift) {
- case 1:
- misaligned_kernel_word_store(address, val);
- break;
- case 2:
- asm ("stlo.l %1, 0, %0" : : "r" (val), "r" (address));
- asm ("sthi.l %1, 3, %0" : : "r" (val), "r" (address));
- break;
- case 3:
- asm ("stlo.q %1, 0, %0" : : "r" (val), "r" (address));
- asm ("sthi.q %1, 7, %0" : : "r" (val), "r" (address));
- break;
-
- default:
- printk("Unexpected width_shift %d in misaligned_store, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
- }
-
- return 0;
-
-}
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
-/* Never need to fix up misaligned FPU accesses within the kernel since that's a real
- error. */
-static int misaligned_fpu_load(struct pt_regs *regs,
- __u32 opcode,
- int displacement_not_indexed,
- int width_shift,
- int do_paired_load)
-{
- /* Return -1 for a fault, 0 for OK */
- int error;
- int destreg;
- __u64 address;
-
- error = generate_and_check_address(regs, opcode,
- displacement_not_indexed, width_shift, &address);
- if (error < 0) {
- return error;
- }
-
- destreg = (opcode >> 4) & 0x3f;
- if (user_mode(regs)) {
- __u64 buffer;
- __u32 buflo, bufhi;
-
- if (!access_ok(VERIFY_READ, (unsigned long) address, 1UL<<width_shift)) {
- return -1;
- }
-
- if (__copy_user(&buffer, (const void *)(int)address, (1 << width_shift)) > 0) {
- return -1; /* fault */
- }
- /* 'current' may be the current owner of the FPU state, so
- context switch the registers into memory so they can be
- indexed by register number. */
- if (last_task_used_math == current) {
- grab_fpu();
- fpsave(&current->thread.fpu.hard);
- release_fpu();
- last_task_used_math = NULL;
- regs->sr |= SR_FD;
- }
-
- buflo = *(__u32*) &buffer;
- bufhi = *(1 + (__u32*) &buffer);
-
- switch (width_shift) {
- case 2:
- current->thread.fpu.hard.fp_regs[destreg] = buflo;
- break;
- case 3:
- if (do_paired_load) {
- current->thread.fpu.hard.fp_regs[destreg] = buflo;
- current->thread.fpu.hard.fp_regs[destreg+1] = bufhi;
- } else {
-#if defined(CONFIG_LITTLE_ENDIAN)
- current->thread.fpu.hard.fp_regs[destreg] = bufhi;
- current->thread.fpu.hard.fp_regs[destreg+1] = buflo;
-#else
- current->thread.fpu.hard.fp_regs[destreg] = buflo;
- current->thread.fpu.hard.fp_regs[destreg+1] = bufhi;
-#endif
- }
- break;
- default:
- printk("Unexpected width_shift %d in misaligned_fpu_load, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
- return 0;
- } else {
- die ("Misaligned FPU load inside kernel", regs, 0);
- return -1;
- }
-
-
-}
-
-static int misaligned_fpu_store(struct pt_regs *regs,
- __u32 opcode,
- int displacement_not_indexed,
- int width_shift,
- int do_paired_load)
-{
- /* Return -1 for a fault, 0 for OK */
- int error;
- int srcreg;
- __u64 address;
-
- error = generate_and_check_address(regs, opcode,
- displacement_not_indexed, width_shift, &address);
- if (error < 0) {
- return error;
- }
-
- srcreg = (opcode >> 4) & 0x3f;
- if (user_mode(regs)) {
- __u64 buffer;
- /* Initialise these to NaNs. */
- __u32 buflo=0xffffffffUL, bufhi=0xffffffffUL;
-
- if (!access_ok(VERIFY_WRITE, (unsigned long) address, 1UL<<width_shift)) {
- return -1;
- }
-
- /* 'current' may be the current owner of the FPU state, so
- context switch the registers into memory so they can be
- indexed by register number. */
- if (last_task_used_math == current) {
- grab_fpu();
- fpsave(&current->thread.fpu.hard);
- release_fpu();
- last_task_used_math = NULL;
- regs->sr |= SR_FD;
- }
-
- switch (width_shift) {
- case 2:
- buflo = current->thread.fpu.hard.fp_regs[srcreg];
- break;
- case 3:
- if (do_paired_load) {
- buflo = current->thread.fpu.hard.fp_regs[srcreg];
- bufhi = current->thread.fpu.hard.fp_regs[srcreg+1];
- } else {
-#if defined(CONFIG_LITTLE_ENDIAN)
- bufhi = current->thread.fpu.hard.fp_regs[srcreg];
- buflo = current->thread.fpu.hard.fp_regs[srcreg+1];
-#else
- buflo = current->thread.fpu.hard.fp_regs[srcreg];
- bufhi = current->thread.fpu.hard.fp_regs[srcreg+1];
-#endif
- }
- break;
- default:
- printk("Unexpected width_shift %d in misaligned_fpu_store, PC=%08lx\n",
- width_shift, (unsigned long) regs->pc);
- break;
- }
-
- *(__u32*) &buffer = buflo;
- *(1 + (__u32*) &buffer) = bufhi;
- if (__copy_user((void *)(int)address, &buffer, (1 << width_shift)) > 0) {
- return -1; /* fault */
- }
- return 0;
- } else {
- die ("Misaligned FPU load inside kernel", regs, 0);
- return -1;
- }
-}
-#endif
-
-static int misaligned_fixup(struct pt_regs *regs)
-{
- unsigned long opcode;
- int error;
- int major, minor;
-
-#if !defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- /* Never fixup user mode misaligned accesses without this option enabled. */
- return -1;
-#else
- if (!user_mode_unaligned_fixup_enable) return -1;
-#endif
-
- error = read_opcode(regs->pc, &opcode, user_mode(regs));
- if (error < 0) {
- return error;
- }
- major = (opcode >> 26) & 0x3f;
- minor = (opcode >> 16) & 0xf;
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- if (user_mode(regs) && (user_mode_unaligned_fixup_count > 0)) {
- --user_mode_unaligned_fixup_count;
- /* Only do 'count' worth of these reports, to remove a potential DoS against syslog */
- printk("Fixing up unaligned userspace access in \"%s\" pid=%d pc=0x%08x ins=0x%08lx\n",
- current->comm, task_pid_nr(current), (__u32)regs->pc, opcode);
- } else
-#endif
- if (!user_mode(regs) && (kernel_mode_unaligned_fixup_count > 0)) {
- --kernel_mode_unaligned_fixup_count;
- if (in_interrupt()) {
- printk("Fixing up unaligned kernelspace access in interrupt pc=0x%08x ins=0x%08lx\n",
- (__u32)regs->pc, opcode);
- } else {
- printk("Fixing up unaligned kernelspace access in \"%s\" pid=%d pc=0x%08x ins=0x%08lx\n",
- current->comm, task_pid_nr(current), (__u32)regs->pc, opcode);
- }
- }
-
-
- switch (major) {
- case (0x84>>2): /* LD.W */
- error = misaligned_load(regs, opcode, 1, 1, 1);
- break;
- case (0xb0>>2): /* LD.UW */
- error = misaligned_load(regs, opcode, 1, 1, 0);
- break;
- case (0x88>>2): /* LD.L */
- error = misaligned_load(regs, opcode, 1, 2, 1);
- break;
- case (0x8c>>2): /* LD.Q */
- error = misaligned_load(regs, opcode, 1, 3, 0);
- break;
-
- case (0xa4>>2): /* ST.W */
- error = misaligned_store(regs, opcode, 1, 1);
- break;
- case (0xa8>>2): /* ST.L */
- error = misaligned_store(regs, opcode, 1, 2);
- break;
- case (0xac>>2): /* ST.Q */
- error = misaligned_store(regs, opcode, 1, 3);
- break;
-
- case (0x40>>2): /* indexed loads */
- switch (minor) {
- case 0x1: /* LDX.W */
- error = misaligned_load(regs, opcode, 0, 1, 1);
- break;
- case 0x5: /* LDX.UW */
- error = misaligned_load(regs, opcode, 0, 1, 0);
- break;
- case 0x2: /* LDX.L */
- error = misaligned_load(regs, opcode, 0, 2, 1);
- break;
- case 0x3: /* LDX.Q */
- error = misaligned_load(regs, opcode, 0, 3, 0);
- break;
- default:
- error = -1;
- break;
- }
- break;
-
- case (0x60>>2): /* indexed stores */
- switch (minor) {
- case 0x1: /* STX.W */
- error = misaligned_store(regs, opcode, 0, 1);
- break;
- case 0x2: /* STX.L */
- error = misaligned_store(regs, opcode, 0, 2);
- break;
- case 0x3: /* STX.Q */
- error = misaligned_store(regs, opcode, 0, 3);
- break;
- default:
- error = -1;
- break;
- }
- break;
-
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- case (0x94>>2): /* FLD.S */
- error = misaligned_fpu_load(regs, opcode, 1, 2, 0);
- break;
- case (0x98>>2): /* FLD.P */
- error = misaligned_fpu_load(regs, opcode, 1, 3, 1);
- break;
- case (0x9c>>2): /* FLD.D */
- error = misaligned_fpu_load(regs, opcode, 1, 3, 0);
- break;
- case (0x1c>>2): /* floating indexed loads */
- switch (minor) {
- case 0x8: /* FLDX.S */
- error = misaligned_fpu_load(regs, opcode, 0, 2, 0);
- break;
- case 0xd: /* FLDX.P */
- error = misaligned_fpu_load(regs, opcode, 0, 3, 1);
- break;
- case 0x9: /* FLDX.D */
- error = misaligned_fpu_load(regs, opcode, 0, 3, 0);
- break;
- default:
- error = -1;
- break;
- }
- break;
- case (0xb4>>2): /* FLD.S */
- error = misaligned_fpu_store(regs, opcode, 1, 2, 0);
- break;
- case (0xb8>>2): /* FLD.P */
- error = misaligned_fpu_store(regs, opcode, 1, 3, 1);
- break;
- case (0xbc>>2): /* FLD.D */
- error = misaligned_fpu_store(regs, opcode, 1, 3, 0);
- break;
- case (0x3c>>2): /* floating indexed stores */
- switch (minor) {
- case 0x8: /* FSTX.S */
- error = misaligned_fpu_store(regs, opcode, 0, 2, 0);
- break;
- case 0xd: /* FSTX.P */
- error = misaligned_fpu_store(regs, opcode, 0, 3, 1);
- break;
- case 0x9: /* FSTX.D */
- error = misaligned_fpu_store(regs, opcode, 0, 3, 0);
- break;
- default:
- error = -1;
- break;
- }
- break;
-#endif
-
- default:
- /* Fault */
- error = -1;
- break;
- }
-
- if (error < 0) {
- return error;
- } else {
- regs->pc += 4; /* Skip the instruction that's just been emulated */
- return 0;
- }
-
-}
-
-static ctl_table unaligned_table[] = {
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "kernel_reports",
- .data = &kernel_mode_unaligned_fixup_count,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
-#if defined(CONFIG_SH64_USER_MISALIGNED_FIXUP)
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "user_reports",
- .data = &user_mode_unaligned_fixup_count,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec
- },
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "user_enable",
- .data = &user_mode_unaligned_fixup_enable,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = &proc_dointvec},
-#endif
- {}
-};
-
-static ctl_table unaligned_root[] = {
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "unaligned_fixup",
- .mode = 0555,
- unaligned_table
- },
- {}
-};
-
-static ctl_table sh64_root[] = {
- {
- .ctl_name = CTL_UNNUMBERED,
- .procname = "sh64",
- .mode = 0555,
- .child = unaligned_root
- },
- {}
-};
-static struct ctl_table_header *sysctl_header;
-static int __init init_sysctl(void)
-{
- sysctl_header = register_sysctl_table(sh64_root);
- return 0;
-}
-
-__initcall(init_sysctl);
-
-
-asmlinkage void do_debug_interrupt(unsigned long code, struct pt_regs *regs)
-{
- u64 peek_real_address_q(u64 addr);
- u64 poke_real_address_q(u64 addr, u64 val);
- unsigned long long DM_EXP_CAUSE_PHY = 0x0c100010;
- unsigned long long exp_cause;
- /* It's not worth ioremapping the debug module registers for the amount
- of access we make to them - just go direct to their physical
- addresses. */
- exp_cause = peek_real_address_q(DM_EXP_CAUSE_PHY);
- if (exp_cause & ~4) {
- printk("DM.EXP_CAUSE had unexpected bits set (=%08lx)\n",
- (unsigned long)(exp_cause & 0xffffffff));
- }
- show_state();
- /* Clear all DEBUGINT causes */
- poke_real_address_q(DM_EXP_CAUSE_PHY, 0x0);
-}
diff --git a/arch/sh64/kernel/unwind.c b/arch/sh64/kernel/unwind.c
deleted file mode 100644
index 1214c78e358..00000000000
--- a/arch/sh64/kernel/unwind.c
+++ /dev/null
@@ -1,326 +0,0 @@
-/*
- * arch/sh64/kernel/unwind.c
- *
- * Copyright (C) 2004 Paul Mundt
- * Copyright (C) 2004 Richard Curnow
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/kallsyms.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <asm/page.h>
-#include <asm/ptrace.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-
-static u8 regcache[63];
-
-/*
- * Finding the previous stack frame isn't horribly straightforward as it is
- * on some other platforms. In the sh64 case, we don't have "linked" stack
- * frames, so we need to do a bit of work to determine the previous frame,
- * and in turn, the previous r14/r18 pair.
- *
- * There are generally a few cases which determine where we can find out
- * the r14/r18 values. In the general case, this can be determined by poking
- * around the prologue of the symbol PC is in (note that we absolutely must
- * have frame pointer support as well as the kernel symbol table mapped,
- * otherwise we can't even get this far).
- *
- * In other cases, such as the interrupt/exception path, we can poke around
- * the sp/fp.
- *
- * Notably, this entire approach is somewhat error prone, and in the event
- * that the previous frame cannot be determined, that's all we can do.
- * Either way, this still leaves us with a more correct backtrace then what
- * we would be able to come up with by walking the stack (which is garbage
- * for anything beyond the first frame).
- * -- PFM.
- */
-static int lookup_prev_stack_frame(unsigned long fp, unsigned long pc,
- unsigned long *pprev_fp, unsigned long *pprev_pc,
- struct pt_regs *regs)
-{
- const char *sym;
- char namebuf[128];
- unsigned long offset;
- unsigned long prologue = 0;
- unsigned long fp_displacement = 0;
- unsigned long fp_prev = 0;
- unsigned long offset_r14 = 0, offset_r18 = 0;
- int i, found_prologue_end = 0;
-
- sym = kallsyms_lookup(pc, NULL, &offset, NULL, namebuf);
- if (!sym)
- return -EINVAL;
-
- prologue = pc - offset;
- if (!prologue)
- return -EINVAL;
-
- /* Validate fp, to avoid risk of dereferencing a bad pointer later.
- Assume 128Mb since that's the amount of RAM on a Cayman. Modify
- when there is an SH-5 board with more. */
- if ((fp < (unsigned long) phys_to_virt(__MEMORY_START)) ||
- (fp >= (unsigned long)(phys_to_virt(__MEMORY_START)) + 128*1024*1024) ||
- ((fp & 7) != 0)) {
- return -EINVAL;
- }
-
- /*
- * Depth to walk, depth is completely arbitrary.
- */
- for (i = 0; i < 100; i++, prologue += sizeof(unsigned long)) {
- unsigned long op;
- u8 major, minor;
- u8 src, dest, disp;
-
- op = *(unsigned long *)prologue;
-
- major = (op >> 26) & 0x3f;
- src = (op >> 20) & 0x3f;
- minor = (op >> 16) & 0xf;
- disp = (op >> 10) & 0x3f;
- dest = (op >> 4) & 0x3f;
-
- /*
- * Stack frame creation happens in a number of ways.. in the
- * general case when the stack frame is less than 511 bytes,
- * it's generally created by an addi or addi.l:
- *
- * addi/addi.l r15, -FRAME_SIZE, r15
- *
- * in the event that the frame size is bigger than this, it's
- * typically created using a movi/sub pair as follows:
- *
- * movi FRAME_SIZE, rX
- * sub r15, rX, r15
- */
-
- switch (major) {
- case (0x00 >> 2):
- switch (minor) {
- case 0x8: /* add.l */
- case 0x9: /* add */
- /* Look for r15, r63, r14 */
- if (src == 15 && disp == 63 && dest == 14)
- found_prologue_end = 1;
-
- break;
- case 0xa: /* sub.l */
- case 0xb: /* sub */
- if (src != 15 || dest != 15)
- continue;
-
- fp_displacement -= regcache[disp];
- fp_prev = fp - fp_displacement;
- break;
- }
- break;
- case (0xa8 >> 2): /* st.l */
- if (src != 15)
- continue;
-
- switch (dest) {
- case 14:
- if (offset_r14 || fp_displacement == 0)
- continue;
-
- offset_r14 = (u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
- offset_r14 *= sizeof(unsigned long);
- offset_r14 += fp_displacement;
- break;
- case 18:
- if (offset_r18 || fp_displacement == 0)
- continue;
-
- offset_r18 = (u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
- offset_r18 *= sizeof(unsigned long);
- offset_r18 += fp_displacement;
- break;
- }
-
- break;
- case (0xcc >> 2): /* movi */
- if (dest >= 63) {
- printk(KERN_NOTICE "%s: Invalid dest reg %d "
- "specified in movi handler. Failed "
- "opcode was 0x%lx: ", __FUNCTION__,
- dest, op);
-
- continue;
- }
-
- /* Sign extend */
- regcache[dest] =
- ((((s64)(u64)op >> 10) & 0xffff) << 54) >> 54;
- break;
- case (0xd0 >> 2): /* addi */
- case (0xd4 >> 2): /* addi.l */
- /* Look for r15, -FRAME_SIZE, r15 */
- if (src != 15 || dest != 15)
- continue;
-
- /* Sign extended frame size.. */
- fp_displacement +=
- (u64)(((((s64)op >> 10) & 0x3ff) << 54) >> 54);
- fp_prev = fp - fp_displacement;
- break;
- }
-
- if (found_prologue_end && offset_r14 && (offset_r18 || *pprev_pc) && fp_prev)
- break;
- }
-
- if (offset_r14 == 0 || fp_prev == 0) {
- if (!offset_r14)
- pr_debug("Unable to find r14 offset\n");
- if (!fp_prev)
- pr_debug("Unable to find previous fp\n");
-
- return -EINVAL;
- }
-
- /* For innermost leaf function, there might not be a offset_r18 */
- if (!*pprev_pc && (offset_r18 == 0))
- return -EINVAL;
-
- *pprev_fp = *(unsigned long *)(fp_prev + offset_r14);
-
- if (offset_r18)
- *pprev_pc = *(unsigned long *)(fp_prev + offset_r18);
-
- *pprev_pc &= ~1;
-
- return 0;
-}
-
-/* Don't put this on the stack since we'll want to call sh64_unwind
- * when we're close to underflowing the stack anyway. */
-static struct pt_regs here_regs;
-
-extern const char syscall_ret;
-extern const char ret_from_syscall;
-extern const char ret_from_exception;
-extern const char ret_from_irq;
-
-static void sh64_unwind_inner(struct pt_regs *regs);
-
-static void unwind_nested (unsigned long pc, unsigned long fp)
-{
- if ((fp >= __MEMORY_START) &&
- ((fp & 7) == 0)) {
- sh64_unwind_inner((struct pt_regs *) fp);
- }
-}
-
-static void sh64_unwind_inner(struct pt_regs *regs)
-{
- unsigned long pc, fp;
- int ofs = 0;
- int first_pass;
-
- pc = regs->pc & ~1;
- fp = regs->regs[14];
-
- first_pass = 1;
- for (;;) {
- int cond;
- unsigned long next_fp, next_pc;
-
- if (pc == ((unsigned long) &syscall_ret & ~1)) {
- printk("SYSCALL\n");
- unwind_nested(pc,fp);
- return;
- }
-
- if (pc == ((unsigned long) &ret_from_syscall & ~1)) {
- printk("SYSCALL (PREEMPTED)\n");
- unwind_nested(pc,fp);
- return;
- }
-
- /* In this case, the PC is discovered by lookup_prev_stack_frame but
- it has 4 taken off it to look like the 'caller' */
- if (pc == ((unsigned long) &ret_from_exception & ~1)) {
- printk("EXCEPTION\n");
- unwind_nested(pc,fp);
- return;
- }
-
- if (pc == ((unsigned long) &ret_from_irq & ~1)) {
- printk("IRQ\n");
- unwind_nested(pc,fp);
- return;
- }
-
- cond = ((pc >= __MEMORY_START) && (fp >= __MEMORY_START) &&
- ((pc & 3) == 0) && ((fp & 7) == 0));
-
- pc -= ofs;
-
- printk("[<%08lx>] ", pc);
- print_symbol("%s\n", pc);
-
- if (first_pass) {
- /* If the innermost frame is a leaf function, it's
- * possible that r18 is never saved out to the stack.
- */
- next_pc = regs->regs[18];
- } else {
- next_pc = 0;
- }
-
- if (lookup_prev_stack_frame(fp, pc, &next_fp, &next_pc, regs) == 0) {
- ofs = sizeof(unsigned long);
- pc = next_pc & ~1;
- fp = next_fp;
- } else {
- printk("Unable to lookup previous stack frame\n");
- break;
- }
- first_pass = 0;
- }
-
- printk("\n");
-
-}
-
-void sh64_unwind(struct pt_regs *regs)
-{
- if (!regs) {
- /*
- * Fetch current regs if we have no other saved state to back
- * trace from.
- */
- regs = &here_regs;
-
- __asm__ __volatile__ ("ori r14, 0, %0" : "=r" (regs->regs[14]));
- __asm__ __volatile__ ("ori r15, 0, %0" : "=r" (regs->regs[15]));
- __asm__ __volatile__ ("ori r18, 0, %0" : "=r" (regs->regs[18]));
-
- __asm__ __volatile__ ("gettr tr0, %0" : "=r" (regs->tregs[0]));
- __asm__ __volatile__ ("gettr tr1, %0" : "=r" (regs->tregs[1]));
- __asm__ __volatile__ ("gettr tr2, %0" : "=r" (regs->tregs[2]));
- __asm__ __volatile__ ("gettr tr3, %0" : "=r" (regs->tregs[3]));
- __asm__ __volatile__ ("gettr tr4, %0" : "=r" (regs->tregs[4]));
- __asm__ __volatile__ ("gettr tr5, %0" : "=r" (regs->tregs[5]));
- __asm__ __volatile__ ("gettr tr6, %0" : "=r" (regs->tregs[6]));
- __asm__ __volatile__ ("gettr tr7, %0" : "=r" (regs->tregs[7]));
-
- __asm__ __volatile__ (
- "pta 0f, tr0\n\t"
- "blink tr0, %0\n\t"
- "0: nop"
- : "=r" (regs->pc)
- );
- }
-
- printk("\nCall Trace:\n");
- sh64_unwind_inner(regs);
-}
-
diff --git a/arch/sh64/kernel/vmlinux.lds.S b/arch/sh64/kernel/vmlinux.lds.S
deleted file mode 100644
index f533a064da5..00000000000
--- a/arch/sh64/kernel/vmlinux.lds.S
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * arch/sh5/vmlinux.lds.S
- *
- * ld script to make ST50 Linux kernel
- *
- * Copyright (C) 2000, 2001 Paolo Alberelli
- *
- * benedict.gaster@superh.com: 2nd May 2002
- * Add definition of empty_zero_page to be the first page of kernel image.
- *
- * benedict.gaster@superh.com: 3rd May 2002
- * Added support for ramdisk, removing statically linked romfs at the same time.
- *
- * lethal@linux-sh.org: 9th May 2003
- * Kill off GLOBAL_NAME() usage and other CDC-isms.
- *
- * lethal@linux-sh.org: 19th May 2003
- * Remove support for ancient toolchains.
- */
-
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/processor.h>
-#include <asm/thread_info.h>
-
-#define LOAD_OFFSET CONFIG_CACHED_MEMORY_OFFSET
-#include <asm-generic/vmlinux.lds.h>
-
-OUTPUT_ARCH(sh:sh5)
-
-#define C_PHYS(x) AT (ADDR(x) - LOAD_OFFSET)
-
-ENTRY(__start)
-SECTIONS
-{
- . = CONFIG_CACHED_MEMORY_OFFSET + CONFIG_MEMORY_START + PAGE_SIZE;
- _text = .; /* Text and read-only data */
- text = .; /* Text and read-only data */
-
- .empty_zero_page : C_PHYS(.empty_zero_page) {
- *(.empty_zero_page)
- } = 0
-
- .text : C_PHYS(.text) {
- *(.text.head)
- TEXT_TEXT
- *(.text64)
- *(.text..SHmedia32)
- SCHED_TEXT
- LOCK_TEXT
- *(.fixup)
- *(.gnu.warning)
-#ifdef CONFIG_LITTLE_ENDIAN
- } = 0x6ff0fff0
-#else
- } = 0xf0fff06f
-#endif
-
- /* We likely want __ex_table to be Cache Line aligned */
- . = ALIGN(L1_CACHE_BYTES); /* Exception table */
- __start___ex_table = .;
- __ex_table : C_PHYS(__ex_table) { *(__ex_table) }
- __stop___ex_table = .;
-
- _etext = .; /* End of text section */
-
- NOTES
-
- RODATA
-
- .data : C_PHYS(.data) { /* Data */
- DATA_DATA
- CONSTRUCTORS
- }
-
- . = ALIGN(PAGE_SIZE);
- .data.page_aligned : C_PHYS(.data.page_aligned) { *(.data.page_aligned) }
-
- PERCPU(PAGE_SIZE)
-
- . = ALIGN(L1_CACHE_BYTES);
- .data.cacheline_aligned : C_PHYS(.data.cacheline_aligned) { *(.data.cacheline_aligned) }
-
- _edata = .; /* End of data section */
-
- . = ALIGN(THREAD_SIZE); /* init_task: structure size aligned */
- .data.init_task : C_PHYS(.data.init_task) { *(.data.init_task) }
-
- . = ALIGN(PAGE_SIZE); /* Init code and data */
- __init_begin = .;
- _sinittext = .;
- .init.text : C_PHYS(.init.text) { *(.init.text) }
- _einittext = .;
- .init.data : C_PHYS(.init.data) { *(.init.data) }
- . = ALIGN(L1_CACHE_BYTES); /* Better if Cache Line aligned */
- __setup_start = .;
- .init.setup : C_PHYS(.init.setup) { *(.init.setup) }
- __setup_end = .;
- __initcall_start = .;
- .initcall.init : C_PHYS(.initcall.init) {
- INITCALLS
- }
- __initcall_end = .;
- __con_initcall_start = .;
- .con_initcall.init : C_PHYS(.con_initcall.init) { *(.con_initcall.init) }
- __con_initcall_end = .;
- SECURITY_INIT
-
-#ifdef CONFIG_BLK_DEV_INITRD
- __initramfs_start = .;
- .init.ramfs : C_PHYS(.init.ramfs) { *(.init.ramfs) }
- __initramfs_end = .;
-#endif
-
- . = ALIGN(PAGE_SIZE);
- __init_end = .;
-
- /* Align to the biggest single data representation, head and tail */
- . = ALIGN(8);
- __bss_start = .; /* BSS */
- .bss : C_PHYS(.bss) {
- *(.bss)
- }
- . = ALIGN(8);
- _end = . ;
-
- /* Sections to be discarded */
- /DISCARD/ : {
- *(.exit.text)
- *(.exit.data)
- *(.exitcall.exit)
- }
-
- STABS_DEBUG
- DWARF_DEBUG
-}