From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/asm-i386/mach-voyager/do_timer.h | 25 ++++++++ include/asm-i386/mach-voyager/entry_arch.h | 26 ++++++++ include/asm-i386/mach-voyager/irq_vectors.h | 79 +++++++++++++++++++++++++ include/asm-i386/mach-voyager/setup_arch_post.h | 73 +++++++++++++++++++++++ include/asm-i386/mach-voyager/setup_arch_pre.h | 10 ++++ 5 files changed, 213 insertions(+) create mode 100644 include/asm-i386/mach-voyager/do_timer.h create mode 100644 include/asm-i386/mach-voyager/entry_arch.h create mode 100644 include/asm-i386/mach-voyager/irq_vectors.h create mode 100644 include/asm-i386/mach-voyager/setup_arch_post.h create mode 100644 include/asm-i386/mach-voyager/setup_arch_pre.h (limited to 'include/asm-i386/mach-voyager') diff --git a/include/asm-i386/mach-voyager/do_timer.h b/include/asm-i386/mach-voyager/do_timer.h new file mode 100644 index 00000000000..ae510e5d0d7 --- /dev/null +++ b/include/asm-i386/mach-voyager/do_timer.h @@ -0,0 +1,25 @@ +/* defines for inline arch setup functions */ +#include + +static inline void do_timer_interrupt_hook(struct pt_regs *regs) +{ + do_timer(regs); +#ifndef CONFIG_SMP + update_process_times(user_mode(regs)); +#endif + + voyager_timer_interrupt(regs); +} + +static inline int do_timer_overflow(int count) +{ + /* can't read the ISR, just assume 1 tick + overflow */ + if(count > LATCH || count < 0) { + printk(KERN_ERR "VOYAGER PROBLEM: count is %d, latch is %d\n", count, LATCH); + count = LATCH; + } + count -= LATCH; + + return count; +} diff --git a/include/asm-i386/mach-voyager/entry_arch.h b/include/asm-i386/mach-voyager/entry_arch.h new file mode 100644 index 00000000000..4a1e1e8c10b --- /dev/null +++ b/include/asm-i386/mach-voyager/entry_arch.h @@ -0,0 +1,26 @@ +/* -*- mode: c; c-basic-offset: 8 -*- */ + +/* Copyright (C) 2002 + * + * Author: James.Bottomley@HansenPartnership.com + * + * linux/arch/i386/voyager/entry_arch.h + * + * This file builds the VIC and QIC CPI gates + */ + +/* initialise the voyager interrupt gates + * + * This uses the macros in irq.h to set up assembly jump gates. The + * calls are then redirected to the same routine with smp_ prefixed */ +BUILD_INTERRUPT(vic_sys_interrupt, VIC_SYS_INT) +BUILD_INTERRUPT(vic_cmn_interrupt, VIC_CMN_INT) +BUILD_INTERRUPT(vic_cpi_interrupt, VIC_CPI_LEVEL0); + +/* do all the QIC interrupts */ +BUILD_INTERRUPT(qic_timer_interrupt, QIC_TIMER_CPI); +BUILD_INTERRUPT(qic_invalidate_interrupt, QIC_INVALIDATE_CPI); +BUILD_INTERRUPT(qic_reschedule_interrupt, QIC_RESCHEDULE_CPI); +BUILD_INTERRUPT(qic_enable_irq_interrupt, QIC_ENABLE_IRQ_CPI); +BUILD_INTERRUPT(qic_call_function_interrupt, QIC_CALL_FUNCTION_CPI); + diff --git a/include/asm-i386/mach-voyager/irq_vectors.h b/include/asm-i386/mach-voyager/irq_vectors.h new file mode 100644 index 00000000000..165421f5821 --- /dev/null +++ b/include/asm-i386/mach-voyager/irq_vectors.h @@ -0,0 +1,79 @@ +/* -*- mode: c; c-basic-offset: 8 -*- */ + +/* Copyright (C) 2002 + * + * Author: James.Bottomley@HansenPartnership.com + * + * linux/arch/i386/voyager/irq_vectors.h + * + * This file provides definitions for the VIC and QIC CPIs + */ + +#ifndef _ASM_IRQ_VECTORS_H +#define _ASM_IRQ_VECTORS_H + +/* + * IDT vectors usable for external interrupt sources start + * at 0x20: + */ +#define FIRST_EXTERNAL_VECTOR 0x20 + +#define SYSCALL_VECTOR 0x80 + +/* + * Vectors 0x20-0x2f are used for ISA interrupts. + */ + +/* These define the CPIs we use in linux */ +#define VIC_CPI_LEVEL0 0 +#define VIC_CPI_LEVEL1 1 +/* now the fake CPIs */ +#define VIC_TIMER_CPI 2 +#define VIC_INVALIDATE_CPI 3 +#define VIC_RESCHEDULE_CPI 4 +#define VIC_ENABLE_IRQ_CPI 5 +#define VIC_CALL_FUNCTION_CPI 6 + +/* Now the QIC CPIs: Since we don't need the two initial levels, + * these are 2 less than the VIC CPIs */ +#define QIC_CPI_OFFSET 1 +#define QIC_TIMER_CPI (VIC_TIMER_CPI - QIC_CPI_OFFSET) +#define QIC_INVALIDATE_CPI (VIC_INVALIDATE_CPI - QIC_CPI_OFFSET) +#define QIC_RESCHEDULE_CPI (VIC_RESCHEDULE_CPI - QIC_CPI_OFFSET) +#define QIC_ENABLE_IRQ_CPI (VIC_ENABLE_IRQ_CPI - QIC_CPI_OFFSET) +#define QIC_CALL_FUNCTION_CPI (VIC_CALL_FUNCTION_CPI - QIC_CPI_OFFSET) + +#define VIC_START_FAKE_CPI VIC_TIMER_CPI +#define VIC_END_FAKE_CPI VIC_CALL_FUNCTION_CPI + +/* this is the SYS_INT CPI. */ +#define VIC_SYS_INT 8 +#define VIC_CMN_INT 15 + +/* This is the boot CPI for alternate processors. It gets overwritten + * by the above once the system has activated all available processors */ +#define VIC_CPU_BOOT_CPI VIC_CPI_LEVEL0 +#define VIC_CPU_BOOT_ERRATA_CPI (VIC_CPI_LEVEL0 + 8) + +#define NR_VECTORS 256 +#define NR_IRQS 224 +#define NR_IRQ_VECTORS NR_IRQS + +#define FPU_IRQ 13 + +#define FIRST_VM86_IRQ 3 +#define LAST_VM86_IRQ 15 +#define invalid_vm86_irq(irq) ((irq) < 3 || (irq) > 15) + +#ifndef __ASSEMBLY__ +extern asmlinkage void vic_cpi_interrupt(void); +extern asmlinkage void vic_sys_interrupt(void); +extern asmlinkage void vic_cmn_interrupt(void); +extern asmlinkage void qic_timer_interrupt(void); +extern asmlinkage void qic_invalidate_interrupt(void); +extern asmlinkage void qic_reschedule_interrupt(void); +extern asmlinkage void qic_enable_irq_interrupt(void); +extern asmlinkage void qic_call_function_interrupt(void); +#endif /* !__ASSEMBLY__ */ + +#endif /* _ASM_IRQ_VECTORS_H */ diff --git a/include/asm-i386/mach-voyager/setup_arch_post.h b/include/asm-i386/mach-voyager/setup_arch_post.h new file mode 100644 index 00000000000..f6f6c2cbc75 --- /dev/null +++ b/include/asm-i386/mach-voyager/setup_arch_post.h @@ -0,0 +1,73 @@ +/* Hook for machine specific memory setup. + * + * This is included late in kernel/setup.c so that it can make use of all of + * the static functions. */ + +static char * __init machine_specific_memory_setup(void) +{ + char *who; + + who = "NOT VOYAGER"; + + if(voyager_level == 5) { + __u32 addr, length; + int i; + + who = "Voyager-SUS"; + + e820.nr_map = 0; + for(i=0; voyager_memory_detect(i, &addr, &length); i++) { + add_memory_region(addr, length, E820_RAM); + } + return who; + } else if(voyager_level == 4) { + __u32 tom; + __u16 catbase = inb(VOYAGER_SSPB_RELOCATION_PORT)<<8; + /* select the DINO config space */ + outb(VOYAGER_DINO, VOYAGER_CAT_CONFIG_PORT); + /* Read DINO top of memory register */ + tom = ((inb(catbase + 0x4) & 0xf0) << 16) + + ((inb(catbase + 0x5) & 0x7f) << 24); + + if(inb(catbase) != VOYAGER_DINO) { + printk(KERN_ERR "Voyager: Failed to get DINO for L4, setting tom to EXT_MEM_K\n"); + tom = (EXT_MEM_K)<<10; + } + who = "Voyager-TOM"; + add_memory_region(0, 0x9f000, E820_RAM); + /* map from 1M to top of memory */ + add_memory_region(1*1024*1024, tom - 1*1024*1024, E820_RAM); + /* FIXME: Should check the ASICs to see if I need to + * take out the 8M window. Just do it at the moment + * */ + add_memory_region(8*1024*1024, 8*1024*1024, E820_RESERVED); + return who; + } + + who = "BIOS-e820"; + + /* + * Try to copy the BIOS-supplied E820-map. + * + * Otherwise fake a memory map; one section from 0k->640k, + * the next section from 1mb->appropriate_mem_k + */ + sanitize_e820_map(E820_MAP, &E820_MAP_NR); + if (copy_e820_map(E820_MAP, E820_MAP_NR) < 0) { + unsigned long mem_size; + + /* compare results from other methods and take the greater */ + if (ALT_MEM_K < EXT_MEM_K) { + mem_size = EXT_MEM_K; + who = "BIOS-88"; + } else { + mem_size = ALT_MEM_K; + who = "BIOS-e801"; + } + + e820.nr_map = 0; + add_memory_region(0, LOWMEMSIZE(), E820_RAM); + add_memory_region(HIGH_MEMORY, mem_size << 10, E820_RAM); + } + return who; +} diff --git a/include/asm-i386/mach-voyager/setup_arch_pre.h b/include/asm-i386/mach-voyager/setup_arch_pre.h new file mode 100644 index 00000000000..48f7e6ff49a --- /dev/null +++ b/include/asm-i386/mach-voyager/setup_arch_pre.h @@ -0,0 +1,10 @@ +#include +#define VOYAGER_BIOS_INFO ((struct voyager_bios_info *)(PARAM+0x40)) + +/* Hook to call BIOS initialisation function */ + +/* for voyager, pass the voyager BIOS/SUS info area to the detection + * routines */ + +#define ARCH_SETUP voyager_detect(VOYAGER_BIOS_INFO); + -- cgit v1.2.3