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-rw-r--r--arch/arm/kernel/Makefile5
-rw-r--r--arch/arm/kernel/apm.c19
-rw-r--r--arch/arm/kernel/dma-isa.c22
-rw-r--r--arch/arm/kernel/dma.c73
-rw-r--r--arch/arm/kernel/entry-armv.S2
-rw-r--r--arch/arm/kernel/head.S2
-rw-r--r--arch/arm/kernel/irq.c2
-rw-r--r--arch/arm/kernel/process.c3
-rw-r--r--arch/arm/kernel/setup.c2
-rw-r--r--arch/arm/kernel/time.c3
-rw-r--r--arch/arm/kernel/traps.c1
-rw-r--r--arch/arm/kernel/vmlinux.lds.S12
12 files changed, 50 insertions, 96 deletions
diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index c11169b5ed9..de94b0f3ee2 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -2,15 +2,16 @@
# Makefile for the linux kernel.
#
-AFLAGS_head.o := -DKERNEL_RAM_ADDR=$(TEXTADDR)
+AFLAGS_head.o := -DTEXT_OFFSET=$(TEXT_OFFSET)
# Object file lists.
-obj-y := compat.o dma.o entry-armv.o entry-common.o irq.o \
+obj-y := compat.o entry-armv.o entry-common.o irq.o \
process.o ptrace.o semaphore.o setup.o signal.o sys_arm.o \
time.o traps.o
obj-$(CONFIG_APM) += apm.o
+obj-$(CONFIG_ISA_DMA_API) += dma.o
obj-$(CONFIG_ARCH_ACORN) += ecard.o
obj-$(CONFIG_FOOTBRIDGE) += isa.o
obj-$(CONFIG_FIQ) += fiq.o
diff --git a/arch/arm/kernel/apm.c b/arch/arm/kernel/apm.c
index a2843be0555..b9df1b782bb 100644
--- a/arch/arm/kernel/apm.c
+++ b/arch/arm/kernel/apm.c
@@ -20,7 +20,6 @@
#include <linux/apm_bios.h>
#include <linux/sched.h>
#include <linux/pm.h>
-#include <linux/pm_legacy.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/list.h>
@@ -81,6 +80,7 @@ struct apm_user {
*/
static int suspends_pending;
static int apm_disabled;
+static int arm_apm_active;
static DECLARE_WAIT_QUEUE_HEAD(apm_waitqueue);
static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue);
@@ -477,9 +477,9 @@ static int kapmd(void *arg)
apm_event_t event;
wait_event_interruptible(kapmd_wait,
- !queue_empty(&kapmd_queue) || !pm_active);
+ !queue_empty(&kapmd_queue) || !arm_apm_active);
- if (!pm_active)
+ if (!arm_apm_active)
break;
spin_lock_irq(&kapmd_queue_lock);
@@ -522,16 +522,11 @@ static int __init apm_init(void)
return -ENODEV;
}
- if (PM_IS_ACTIVE()) {
- printk(KERN_NOTICE "apm: overridden by ACPI.\n");
- return -EINVAL;
- }
-
- pm_active = 1;
+ arm_apm_active = 1;
ret = kernel_thread(kapmd, NULL, CLONE_KERNEL);
if (ret < 0) {
- pm_active = 0;
+ arm_apm_active = 0;
return ret;
}
@@ -543,7 +538,7 @@ static int __init apm_init(void)
if (ret != 0) {
remove_proc_entry("apm", NULL);
- pm_active = 0;
+ arm_apm_active = 0;
wake_up(&kapmd_wait);
wait_for_completion(&kapmd_exit);
}
@@ -556,7 +551,7 @@ static void __exit apm_exit(void)
misc_deregister(&apm_device);
remove_proc_entry("apm", NULL);
- pm_active = 0;
+ arm_apm_active = 0;
wake_up(&kapmd_wait);
wait_for_completion(&kapmd_exit);
}
diff --git a/arch/arm/kernel/dma-isa.c b/arch/arm/kernel/dma-isa.c
index e9a36304ec3..03532769a97 100644
--- a/arch/arm/kernel/dma-isa.c
+++ b/arch/arm/kernel/dma-isa.c
@@ -18,7 +18,7 @@
*/
#include <linux/ioport.h>
#include <linux/init.h>
-#include <linux/pci.h>
+#include <linux/dma-mapping.h>
#include <asm/dma.h>
#include <asm/io.h>
@@ -65,37 +65,41 @@ static void isa_enable_dma(dmach_t channel, dma_t *dma)
{
if (dma->invalid) {
unsigned long address, length;
- unsigned int mode, direction;
+ unsigned int mode;
+ enum dma_data_direction direction;
mode = channel & 3;
switch (dma->dma_mode & DMA_MODE_MASK) {
case DMA_MODE_READ:
mode |= ISA_DMA_MODE_READ;
- direction = PCI_DMA_FROMDEVICE;
+ direction = DMA_FROM_DEVICE;
break;
case DMA_MODE_WRITE:
mode |= ISA_DMA_MODE_WRITE;
- direction = PCI_DMA_TODEVICE;
+ direction = DMA_TO_DEVICE;
break;
case DMA_MODE_CASCADE:
mode |= ISA_DMA_MODE_CASCADE;
- direction = PCI_DMA_BIDIRECTIONAL;
+ direction = DMA_BIDIRECTIONAL;
break;
default:
- direction = PCI_DMA_NONE;
+ direction = DMA_NONE;
break;
}
- if (!dma->using_sg) {
+ if (!dma->sg) {
/*
* Cope with ISA-style drivers which expect cache
* coherence.
*/
- dma->buf.dma_address = pci_map_single(NULL,
- dma->buf.__address, dma->buf.length,
+ dma->sg = &dma->buf;
+ dma->sgcount = 1;
+ dma->buf.length = dma->count;
+ dma->buf.dma_address = dma_map_single(NULL,
+ dma->addr, dma->count,
direction);
}
diff --git a/arch/arm/kernel/dma.c b/arch/arm/kernel/dma.c
index 2b788388423..5a0f4bc5da9 100644
--- a/arch/arm/kernel/dma.c
+++ b/arch/arm/kernel/dma.c
@@ -12,8 +12,6 @@
* DMA facilities.
*/
#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/mman.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/errno.h>
@@ -23,8 +21,7 @@
#include <asm/mach/dma.h>
DEFINE_SPINLOCK(dma_spin_lock);
-
-#if MAX_DMA_CHANNELS > 0
+EXPORT_SYMBOL(dma_spin_lock);
static dma_t dma_chan[MAX_DMA_CHANNELS];
@@ -81,6 +78,7 @@ bad_dma:
busy:
return -EBUSY;
}
+EXPORT_SYMBOL(request_dma);
/*
* Free DMA channel
@@ -112,6 +110,7 @@ void free_dma(dmach_t channel)
bad_dma:
printk(KERN_ERR "dma: trying to free DMA%d\n", channel);
}
+EXPORT_SYMBOL(free_dma);
/* Set DMA Scatter-Gather list
*/
@@ -125,15 +124,15 @@ void set_dma_sg (dmach_t channel, struct scatterlist *sg, int nr_sg)
dma->sg = sg;
dma->sgcount = nr_sg;
- dma->using_sg = 1;
dma->invalid = 1;
}
+EXPORT_SYMBOL(set_dma_sg);
/* Set DMA address
*
* Copy address to the structure, and set the invalid bit
*/
-void set_dma_addr (dmach_t channel, unsigned long physaddr)
+void __set_dma_addr (dmach_t channel, void *addr)
{
dma_t *dma = dma_chan + channel;
@@ -141,12 +140,11 @@ void set_dma_addr (dmach_t channel, unsigned long physaddr)
printk(KERN_ERR "dma%d: altering DMA address while "
"DMA active\n", channel);
- dma->sg = &dma->buf;
- dma->sgcount = 1;
- dma->buf.__address = bus_to_virt(physaddr);
- dma->using_sg = 0;
+ dma->sg = NULL;
+ dma->addr = addr;
dma->invalid = 1;
}
+EXPORT_SYMBOL(__set_dma_addr);
/* Set DMA byte count
*
@@ -160,12 +158,11 @@ void set_dma_count (dmach_t channel, unsigned long count)
printk(KERN_ERR "dma%d: altering DMA count while "
"DMA active\n", channel);
- dma->sg = &dma->buf;
- dma->sgcount = 1;
- dma->buf.length = count;
- dma->using_sg = 0;
+ dma->sg = NULL;
+ dma->count = count;
dma->invalid = 1;
}
+EXPORT_SYMBOL(set_dma_count);
/* Set DMA direction mode
*/
@@ -180,6 +177,7 @@ void set_dma_mode (dmach_t channel, dmamode_t mode)
dma->dma_mode = mode;
dma->invalid = 1;
}
+EXPORT_SYMBOL(set_dma_mode);
/* Enable DMA channel
*/
@@ -200,6 +198,7 @@ free_dma:
printk(KERN_ERR "dma%d: trying to enable free DMA\n", channel);
BUG();
}
+EXPORT_SYMBOL(enable_dma);
/* Disable DMA channel
*/
@@ -220,6 +219,7 @@ free_dma:
printk(KERN_ERR "dma%d: trying to disable free DMA\n", channel);
BUG();
}
+EXPORT_SYMBOL(disable_dma);
/*
* Is the specified DMA channel active?
@@ -233,6 +233,7 @@ void set_dma_page(dmach_t channel, char pagenr)
{
printk(KERN_ERR "dma%d: trying to set_dma_page\n", channel);
}
+EXPORT_SYMBOL(set_dma_page);
void set_dma_speed(dmach_t channel, int cycle_ns)
{
@@ -243,6 +244,7 @@ void set_dma_speed(dmach_t channel, int cycle_ns)
ret = dma->d_ops->setspeed(channel, dma, cycle_ns);
dma->speed = ret;
}
+EXPORT_SYMBOL(set_dma_speed);
int get_dma_residue(dmach_t channel)
{
@@ -254,49 +256,12 @@ int get_dma_residue(dmach_t channel)
return ret;
}
+EXPORT_SYMBOL(get_dma_residue);
-void __init init_dma(void)
+static int __init init_dma(void)
{
arch_dma_init(dma_chan);
-}
-
-#else
-
-int request_dma(dmach_t channel, const char *device_id)
-{
- return -EINVAL;
-}
-
-int get_dma_residue(dmach_t channel)
-{
return 0;
}
-#define GLOBAL_ALIAS(_a,_b) asm (".set " #_a "," #_b "; .globl " #_a)
-GLOBAL_ALIAS(disable_dma, get_dma_residue);
-GLOBAL_ALIAS(enable_dma, get_dma_residue);
-GLOBAL_ALIAS(free_dma, get_dma_residue);
-GLOBAL_ALIAS(get_dma_list, get_dma_residue);
-GLOBAL_ALIAS(set_dma_mode, get_dma_residue);
-GLOBAL_ALIAS(set_dma_page, get_dma_residue);
-GLOBAL_ALIAS(set_dma_count, get_dma_residue);
-GLOBAL_ALIAS(set_dma_addr, get_dma_residue);
-GLOBAL_ALIAS(set_dma_sg, get_dma_residue);
-GLOBAL_ALIAS(set_dma_speed, get_dma_residue);
-GLOBAL_ALIAS(init_dma, get_dma_residue);
-
-#endif
-
-EXPORT_SYMBOL(request_dma);
-EXPORT_SYMBOL(free_dma);
-EXPORT_SYMBOL(enable_dma);
-EXPORT_SYMBOL(disable_dma);
-EXPORT_SYMBOL(set_dma_addr);
-EXPORT_SYMBOL(set_dma_count);
-EXPORT_SYMBOL(set_dma_mode);
-EXPORT_SYMBOL(set_dma_page);
-EXPORT_SYMBOL(get_dma_residue);
-EXPORT_SYMBOL(set_dma_sg);
-EXPORT_SYMBOL(set_dma_speed);
-
-EXPORT_SYMBOL(dma_spin_lock);
+core_initcall(init_dma);
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 2a8d27e18fa..a52baedf626 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -18,8 +18,6 @@
#include <asm/memory.h>
#include <asm/glue.h>
#include <asm/vfpmacros.h>
-#include <asm/hardware.h> /* should be moved into entry-macro.S */
-#include <asm/arch/irqs.h> /* should be moved into entry-macro.S */
#include <asm/arch/entry-macro.S>
#include "entry-header.S"
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index d7d69fd7039..1e985f2cd70 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -33,6 +33,8 @@
#define MACHINFO_PGOFFIO 12
#define MACHINFO_NAME 16
+#define KERNEL_RAM_ADDR (PAGE_OFFSET + TEXT_OFFSET)
+
/*
* swapper_pg_dir is the virtual address of the initial page table.
* We place the page tables 16K below KERNEL_RAM_ADDR. Therefore, we must
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index d7099dbbb87..869c466e625 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -1027,7 +1027,6 @@ void __init init_irq_proc(void)
void __init init_IRQ(void)
{
struct irqdesc *desc;
- extern void init_dma(void);
int irq;
#ifdef CONFIG_SMP
@@ -1041,7 +1040,6 @@ void __init init_IRQ(void)
}
init_arch_irq();
- init_dma();
}
static int __init noirqdebug_setup(char *str)
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 30494aab829..54a21bdcba5 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -28,10 +28,9 @@
#include <linux/init.h>
#include <linux/cpu.h>
-#include <asm/system.h>
-#include <asm/io.h>
#include <asm/leds.h>
#include <asm/processor.h>
+#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/mach/time.h>
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 85774165e9f..2cab741ad0f 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -26,8 +26,6 @@
#include <asm/cpu.h>
#include <asm/elf.h>
-#include <asm/hardware.h>
-#include <asm/io.h>
#include <asm/procinfo.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index fc4729106a3..d7d932c0286 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -29,9 +29,6 @@
#include <linux/sysdev.h>
#include <linux/timer.h>
-#include <asm/hardware.h>
-#include <asm/io.h>
-#include <asm/irq.h>
#include <asm/leds.h>
#include <asm/thread_info.h>
#include <asm/mach/time.h>
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 45e9ea6cd2a..c9fe6f5f7ee 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -23,7 +23,6 @@
#include <asm/atomic.h>
#include <asm/cacheflush.h>
-#include <asm/io.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 9a47770114d..2b254e88595 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -17,15 +17,13 @@ jiffies = jiffies_64;
jiffies = jiffies_64 + 4;
#endif
+SECTIONS
+{
#ifdef CONFIG_XIP_KERNEL
-#define TEXTADDR XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR)
+ . = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR);
#else
-#define TEXTADDR KERNEL_RAM_ADDR
+ . = PAGE_OFFSET + TEXT_OFFSET;
#endif
-
-SECTIONS
-{
- . = TEXTADDR;
.init : { /* Init code and data */
_stext = .;
_sinittext = .;
@@ -104,7 +102,7 @@ SECTIONS
#ifdef CONFIG_XIP_KERNEL
__data_loc = ALIGN(4); /* location in binary */
- . = KERNEL_RAM_ADDR;
+ . = PAGE_OFFSET + TEXT_OFFSET;
#else
. = ALIGN(THREAD_SIZE);
__data_loc = .;
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-13 03:57:06 +0000