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-rw-r--r--arch/arm/mm/Makefile16
-rw-r--r--arch/arm/mm/fault-armo.c44
-rw-r--r--arch/arm/mm/fault-armv.c121
-rw-r--r--arch/arm/mm/init.c6
-rw-r--r--arch/arm/mm/mm-arc.c1
-rw-r--r--arch/arm/mm/mm-ebsa110.c19
-rw-r--r--arch/arm/mm/mm-ebsa285.c97
-rw-r--r--arch/arm/mm/mm-nexuspci.c23
-rw-r--r--arch/arm/mm/mm-rpc.c65
-rw-r--r--arch/arm/mm/proc-arm6,7.S6
-rw-r--r--arch/arm/mm/proc-sa110.S10
11 files changed, 375 insertions, 33 deletions
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index 0488da561..be9be35f0 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -7,8 +7,14 @@
#
# Note 2! The CFLAGS definition is now in the main makefile...
+ifeq ($(MACHINE),a5k)
+MMARCH=arc
+else
+MMARCH=$(MACHINE)
+endif
+
O_TARGET := mm.o
-O_OBJS := init.o extable.o fault-$(PROCESSOR).o mm-$(MACHINE).o
+O_OBJS := init.o extable.o fault-$(PROCESSOR).o mm-$(MMARCH).o
ifeq ($(PROCESSOR),armo)
O_OBJS += proc-arm2,3.o
@@ -28,9 +34,9 @@ proc-sa110.o: ../lib/constants.h
../lib/constants.h:
@$(MAKE) -C ../lib constants.h
+ifneq ($(CONFIG_BINUTILS_NEW),y)
%.o: %.S
-ifndef $(CONFIG_BINUTILS_NEW)
- $(CC) $(CFLAGS) -D__ASSEMBLY__ -E $< | tr ';$$' '\n#' > ..tmp.s
- $(CC) $(CFLAGS:-pipe=) -c -o $@ ..tmp.s
- $(RM) ..tmp.s
+ $(CC) $(CFLAGS) -D__ASSEMBLY__ -E $< | tr ';$$' '\n#' > ..$@.tmp.s
+ $(CC) $(CFLAGS:-pipe=) -c -o $@ ..$@.tmp.s
+ $(RM) ..$@.tmp.s
endif
diff --git a/arch/arm/mm/fault-armo.c b/arch/arm/mm/fault-armo.c
index a0fd65df2..6e1024c30 100644
--- a/arch/arm/mm/fault-armo.c
+++ b/arch/arm/mm/fault-armo.c
@@ -27,6 +27,50 @@
#define FAULT_CODE_WRITE 0x02
#define FAULT_CODE_USER 0x01
+struct pgtable_cache_struct quicklists;
+
+void __bad_pte(pmd_t *pmd)
+{
+ printk("Bad pmd in pte_alloc: %08lx\n", pmd_val(*pmd));
+ set_pmd(pmd, mk_pmd(BAD_PAGETABLE));
+}
+
+pgd_t *get_pgd_slow(void)
+{
+ pgd_t *pgd = (pgd_t *) kmalloc(PTRS_PER_PGD * BYTES_PER_PTR, GFP_KERNEL);
+ pgd_t *init;
+
+ if (pgd) {
+ init = pgd_offset(&init_mm, 0);
+ memzero (pgd, USER_PTRS_PER_PGD * BYTES_PER_PTR);
+ memcpy (pgd + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD,
+ (PTRS_PER_PGD - USER_PTRS_PER_PGD) * BYTES_PER_PTR);
+ }
+ return pgd;
+}
+
+pte_t *get_pte_slow(pmd_t *pmd, unsigned long offset)
+{
+ pte_t *pte;
+
+ pte = (pte_t *) kmalloc (PTRS_PER_PTE * BYTES_PER_PTR, GFP_KERNEL);
+ if (pmd_none(*pmd)) {
+ if (pte) {
+ memzero (pte, PTRS_PER_PTE * BYTES_PER_PTR);
+ set_pmd(pmd, mk_pmd(pte));
+ return pte + offset;
+ }
+ set_pmd(pmd, mk_pmd(BAD_PAGETABLE));
+ return NULL;
+ }
+ kfree (pte);
+ if (pmd_bad(*pmd)) {
+ __bad_pte(pmd);
+ return NULL;
+ }
+ return (pte_t *) pmd_page(*pmd) + offset;
+}
+
extern void die_if_kernel(char *msg, struct pt_regs *regs, unsigned int err, unsigned int ret);
static void kernel_page_fault (unsigned long addr, int mode, struct pt_regs *regs,
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index 2925761fb..051b336bf 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -25,8 +25,96 @@
#define FAULT_CODE_READ 0x02
#define FAULT_CODE_USER 0x01
+struct pgtable_cache_struct quicklists;
+
+void __bad_pmd(pmd_t *pmd)
+{
+ printk("Bad pmd in pte_alloc: %08lx\n", pmd_val(*pmd));
+ set_pmd(pmd, mk_user_pmd(BAD_PAGETABLE));
+}
+
+void __bad_pmd_kernel(pmd_t *pmd)
+{
+ printk("Bad pmd in pte_alloc: %08lx\n", pmd_val(*pmd));
+ set_pmd(pmd, mk_kernel_pmd(BAD_PAGETABLE));
+}
+
+pgd_t *get_pgd_slow(void)
+{
+ /*
+ * need to get a 16k page for level 1
+ */
+ pgd_t *pgd = (pgd_t *) __get_free_pages(GFP_KERNEL,2);
+ pgd_t *init;
+
+ if (pgd) {
+ init = pgd_offset(&init_mm, 0);
+ memzero ((void *)pgd, USER_PTRS_PER_PGD * BYTES_PER_PTR);
+ memcpy (pgd + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD,
+ (PTRS_PER_PGD - USER_PTRS_PER_PGD) * BYTES_PER_PTR);
+ }
+ return pgd;
+}
+
+pte_t *get_pte_slow(pmd_t *pmd, unsigned long offset)
+{
+ pte_t *pte;
+
+ pte = (pte_t *) get_small_page(GFP_KERNEL);
+ if (pmd_none(*pmd)) {
+ if (pte) {
+ memzero (pte, PTRS_PER_PTE * BYTES_PER_PTR);
+ set_pmd(pmd, mk_user_pmd(pte));
+ return pte + offset;
+ }
+ set_pmd(pmd, mk_user_pmd(BAD_PAGETABLE));
+ return NULL;
+ }
+ free_small_page ((unsigned long) pte);
+ if (pmd_bad(*pmd)) {
+ __bad_pmd(pmd);
+ return NULL;
+ }
+ return (pte_t *) pmd_page(*pmd) + offset;
+}
+
+pte_t *get_pte_kernel_slow(pmd_t *pmd, unsigned long offset)
+{
+ pte_t *pte;
+
+ pte = (pte_t *) get_small_page(GFP_KERNEL);
+ if (pmd_none(*pmd)) {
+ if (pte) {
+ memzero (pte, PTRS_PER_PTE * BYTES_PER_PTR);
+ set_pmd(pmd, mk_kernel_pmd(pte));
+ return pte + offset;
+ }
+ set_pmd(pmd, mk_kernel_pmd(BAD_PAGETABLE));
+ return NULL;
+ }
+ free_small_page ((unsigned long) pte);
+ if (pmd_bad(*pmd)) {
+ __bad_pmd_kernel(pmd);
+ return NULL;
+ }
+ return (pte_t *) pmd_page(*pmd) + offset;
+}
+
extern void die_if_kernel(char *msg, struct pt_regs *regs, unsigned int err, unsigned int ret);
+#ifdef DEBUG
+static int sp_valid (unsigned long *sp)
+{
+ unsigned long addr = (unsigned long) sp;
+
+ if (addr >= 0xb0000000 && addr < 0xd0000000)
+ return 1;
+ if (addr >= 0x03ff0000 && addr < 0x04000000)
+ return 1;
+ return 0;
+}
+#endif
+
static void kernel_page_fault (unsigned long addr, int mode, struct pt_regs *regs,
struct task_struct *tsk, struct mm_struct *mm)
{
@@ -103,6 +191,16 @@ bad_area:
printk ("%s: memory violation at pc=0x%08lx, lr=0x%08lx (bad address=0x%08lx, code %d)\n",
tsk->comm, regs->ARM_pc, regs->ARM_lr, addr, mode);
#ifdef DEBUG
+ {
+ unsigned int i, j;
+ unsigned long *sp = (unsigned long *) (regs->ARM_sp - 128);
+ for (j = 0; j < 20 && sp_valid (sp); j++) {
+ printk ("%p: ", sp);
+ for (i = 0; i < 8 && sp_valid (sp); i += 1, sp++)
+ printk ("%08lx ", *sp);
+ printk ("\n");
+ }
+ }
show_regs (regs);
c_backtrace (regs->ARM_fp, regs->ARM_cpsr);
#endif
@@ -133,7 +231,6 @@ do_DataAbort (unsigned long addr, int fsr, int error_code, struct pt_regs *regs)
{
if (user_mode(regs))
error_code |= FAULT_CODE_USER;
-
#define DIE(signr,nam)\
force_sig(signr, current);\
die_if_kernel(nam, regs, fsr, signr);\
@@ -154,18 +251,22 @@ do_DataAbort (unsigned long addr, int fsr, int error_code, struct pt_regs *regs)
case 11:
DIE(SIGSEGV, "Domain fault")
case 13:/* permission fault on section */
-#ifndef DEBUG
+#ifdef DEBUG
{
- unsigned int i, j, a;
-static int count=2;
-if (count-- == 0) while (1);
- a = regs->ARM_sp;
- for (j = 0; j < 10; j++) {
- printk ("%08x: ", a);
- for (i = 0; i < 8; i += 1, a += 4)
- printk ("%08lx ", *(unsigned long *)a);
+ unsigned int i, j;
+ unsigned long *sp;
+
+ printk ("%s: section permission fault (bad address=0x%08lx, code %d)\n",
+ current->comm, addr, error_code);
+ sp = (unsigned long *) (regs->ARM_sp - 128);
+ for (j = 0; j < 20 && sp_valid (sp); j++) {
+ printk ("%p: ", sp);
+ for (i = 0; i < 8 && sp_valid (sp); i += 1, sp++)
+ printk ("%08lx ", *sp);
printk ("\n");
}
+ show_regs (regs);
+ c_backtrace(regs->ARM_fp, regs->ARM_cpsr);
}
#endif
DIE(SIGSEGV, "Permission fault")
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index b9e777a32..36b118eb2 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -17,6 +17,7 @@
#include <linux/mm.h>
#include <linux/swap.h>
#include <linux/smp.h>
+#include <linux/init.h>
#ifdef CONFIG_BLK_DEV_INITRD
#include <linux/blk.h>
#endif
@@ -30,7 +31,6 @@
pgd_t swapper_pg_dir[PTRS_PER_PGD];
-const char bad_pmd_string[] = "Bad pmd in pte_alloc: %08lx\n";
extern char _etext, _stext, _edata, __bss_start, _end;
extern char __init_begin, __init_end;
@@ -103,7 +103,7 @@ void show_mem(void)
/*
* paging_init() sets up the page tables...
*/
-unsigned long paging_init(unsigned long start_mem, unsigned long end_mem)
+__initfunc(unsigned long paging_init(unsigned long start_mem, unsigned long end_mem))
{
extern unsigned long free_area_init(unsigned long, unsigned long);
@@ -130,7 +130,7 @@ unsigned long paging_init(unsigned long start_mem, unsigned long end_mem)
* memory is free. This is done after various parts of the system have
* claimed their memory after the kernel image.
*/
-void mem_init(unsigned long start_mem, unsigned long end_mem)
+__initfunc(void mem_init(unsigned long start_mem, unsigned long end_mem))
{
extern void sound_init(void);
int codepages = 0;
diff --git a/arch/arm/mm/mm-arc.c b/arch/arm/mm/mm-arc.c
index 4a4b4718c..ff447a6be 100644
--- a/arch/arm/mm/mm-arc.c
+++ b/arch/arm/mm/mm-arc.c
@@ -5,3 +5,4 @@
*
* Copyright (C) 1998 Russell King
*/
+#include <asm/arch/mm-init.h>
diff --git a/arch/arm/mm/mm-ebsa110.c b/arch/arm/mm/mm-ebsa110.c
index 907a3f399..a937e098d 100644
--- a/arch/arm/mm/mm-ebsa110.c
+++ b/arch/arm/mm/mm-ebsa110.c
@@ -5,3 +5,22 @@
*
* Copyright (C) 1998 Russell King
*/
+
+#include <asm/io.h>
+
+/* map in IO */
+void setup_io_pagetables(void)
+{
+ unsigned long address = IO_START;
+ int spi = IO_BASE >> PGDIR_SHIFT;
+
+ pgd_val(swapper_pg_dir[spi-1]) = 0xc0000000 | PMD_TYPE_SECT |
+ PMD_DOMAIN(DOMAIN_KERNEL) | PMD_SECT_AP_WRITE;
+
+ while (address < IO_START + IO_SIZE && address) {
+ pgd_val(swapper_pg_dir[spi++]) = address | PMD_TYPE_SECT |
+ PMD_DOMAIN(DOMAIN_IO) |
+ PMD_SECT_AP_WRITE;
+ address += PGDIR_SIZE;
+ }
+}
diff --git a/arch/arm/mm/mm-ebsa285.c b/arch/arm/mm/mm-ebsa285.c
new file mode 100644
index 000000000..eb5d7152a
--- /dev/null
+++ b/arch/arm/mm/mm-ebsa285.c
@@ -0,0 +1,97 @@
+/*
+ * arch/arm/mm/mm-ebsa285.c
+ *
+ * Extra MM routines for the EBSA285 architecture
+ *
+ * Copyright (C) 1998 Russell King
+ */
+#include <linux/sched.h>
+#include <linux/mm.h>
+
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/io.h>
+#include <asm/proc/mm-init.h>
+
+/* Logical Physical
+ * 0xfff00000 0x40000000 X-Bus
+ * 0xffe00000 0x7c000000 PCI I/O space
+ * 0xfe000000 0x42000000 CSR
+ * 0xfd000000 0x78000000 Outbound write flush
+ * 0xfc000000 0x79000000 PCI IACK/special space
+ * 0xf9000000 0x7a000000 PCI Config type 1
+ * 0xf8000000 0x7b000000 PCI Config type 0
+ */
+
+static struct mapping {
+ unsigned long virtual;
+ unsigned long physical;
+ unsigned long length;
+} io_mapping[] = {
+ /*
+ * This is to allow us to fiddle with the EEPROM
+ * This entry will go away in time
+ */
+ { 0xd8000000, 0x41000000, 0x00400000 },
+
+ /*
+ * These ones are so that we can fiddle
+ * with the various cards (eg VGA)
+ * until we're happy with them...
+ */
+ { 0xdc000000, 0x7c000000, 0x00100000 },
+ { 0xe0000000, 0x80000000, 0x10000000 },
+
+ { 0xf8000000, 0x7b000000, 0x01000000 }, /* Type 0 Config */
+
+ { 0xf9000000, 0x7a000000, 0x01000000 }, /* Type 1 Config */
+
+ { 0xfc000000, 0x79000000, 0x01000000 }, /* PCI IACK */
+ { 0xfd000000, 0x78000000, 0x01000000 }, /* Outbound wflsh*/
+ { 0xfe000000, 0x42000000, 0x01000000 }, /* CSR */
+ { 0xffe00000, 0x7c000000, 0x00100000 }, /* PCI I/O */
+ { 0xfff00000, 0x40000000, 0x00100000 }, /* X-Bus */
+};
+
+#define SIZEOFIO (sizeof(io_mapping) / sizeof(io_mapping[0]))
+
+/* map in IO */
+unsigned long setup_io_pagetables(unsigned long start_mem)
+{
+ struct mapping *mp;
+ int i;
+
+ for (i = 0, mp = io_mapping; i < SIZEOFIO; i++, mp++) {
+ while ((mp->virtual & 1048575 || mp->physical & 1048575) && mp->length >= PAGE_SIZE) {
+ alloc_init_page(&start_mem, mp->virtual, mp->physical, DOMAIN_IO,
+ PTE_AP_WRITE);
+
+ mp->length -= PAGE_SIZE;
+ mp->virtual += PAGE_SIZE;
+ mp->physical += PAGE_SIZE;
+ }
+
+ while (mp->length >= 1048576) {
+if (mp->virtual > 0xf0000000)
+ alloc_init_section(&start_mem, mp->virtual, mp->physical, DOMAIN_IO,
+ PMD_SECT_AP_WRITE);
+else
+alloc_init_section(&start_mem, mp->virtual, mp->physical, DOMAIN_USER, PMD_SECT_AP_WRITE | PMD_SECT_AP_READ);
+
+ mp->length -= 1048576;
+ mp->virtual += 1048576;
+ mp->physical += 1048576;
+ }
+
+ while (mp->length >= PAGE_SIZE) {
+ alloc_init_page(&start_mem, mp->virtual, mp->physical, DOMAIN_IO,
+ PTE_AP_WRITE);
+
+ mp->length -= PAGE_SIZE;
+ mp->virtual += PAGE_SIZE;
+ mp->physical += PAGE_SIZE;
+ }
+ }
+ return start_mem;
+}
+
diff --git a/arch/arm/mm/mm-nexuspci.c b/arch/arm/mm/mm-nexuspci.c
index bbae80b19..2bb2d0fab 100644
--- a/arch/arm/mm/mm-nexuspci.c
+++ b/arch/arm/mm/mm-nexuspci.c
@@ -1,7 +1,28 @@
/*
* arch/arm/mm/mm-nexuspci.c
+ * from arch/arm/mm/mm-ebsa110.c
*
- * Extra MM routines for the Archimedes architecture
+ * Extra MM routines for the NexusPCI architecture
*
* Copyright (C) 1998 Russell King
*/
+
+#include <asm/io.h>
+
+/* map in IO */
+void setup_io_pagetables(void)
+{
+ unsigned long address = IO_START;
+ int spi = IO_BASE >> PGDIR_SHIFT;
+
+ pgd_val(swapper_pg_dir[spi-1]) = 0xc0000000 | PMD_TYPE_SECT |
+ PMD_DOMAIN(DOMAIN_KERNEL) | PMD_SECT_AP_WRITE;
+
+ while (address < IO_START + IO_SIZE && address) {
+ pgd_val(swapper_pg_dir[spi++]) = address | PMD_TYPE_SECT |
+ PMD_DOMAIN(DOMAIN_IO) |
+ PMD_SECT_AP_WRITE;
+ address += PGDIR_SIZE;
+ }
+}
+
diff --git a/arch/arm/mm/mm-rpc.c b/arch/arm/mm/mm-rpc.c
index 5eccb1f81..f789b8f79 100644
--- a/arch/arm/mm/mm-rpc.c
+++ b/arch/arm/mm/mm-rpc.c
@@ -6,7 +6,14 @@
* Copyright (C) 1998 Russell King
*/
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include <asm/pgtable.h>
#include <asm/setup.h>
+#include <asm/io.h>
+#include <asm/proc/mm-init.h>
+#include <asm/arch/mm-init.h>
#define NR_DRAM_BANKS 4
#define NR_VRAM_BANKS 1
@@ -21,8 +28,8 @@
#define FIRST_DRAM_ADDR 0x10000000
#define PHYS_TO_BANK(x) (((x) >> BANK_SHIFT) & (NR_DRAM_BANKS - 1))
-#define BANK_TO_PHYS(x) ((FIRST_DRAM_ADDR) +
- (((x) - FIRST_DRAM_BANK) << BANK_SHIFT)
+#define BANK_TO_PHYS(x) ((FIRST_DRAM_ADDR) + \
+ (((x) - FIRST_DRAM_BANK) << BANK_SHIFT))
struct ram_bank {
unsigned int virt_addr; /* virtual address of the *end* of this bank + 1 */
@@ -75,6 +82,56 @@ void init_dram_banks(struct param_struct *params)
rambank[bank].virt_addr = PAGE_OFFSET + bytes;
}
- drambank[4].phys_offset = 0xd6000000;
- drambank[4].virt_addr = 0xd8000000;
+ rambank[FIRST_VRAM_BANK].phys_offset = 0xd6000000;
+ rambank[FIRST_VRAM_BANK].virt_addr = 0xd8000000;
+
+ current->tss.memmap = __virt_to_phys((unsigned long)swapper_pg_dir);
+}
+
+static struct mapping {
+ unsigned long virtual;
+ unsigned long physical;
+ unsigned long length;
+} io_mapping[] = {
+ { SCREEN2_BASE, SCREEN_START, 2*1048576 }, /* VRAM */
+ { IO_BASE, IO_START, IO_SIZE } /* IO space */
+};
+
+#define SIZEOFIO (sizeof(io_mapping) / sizeof(io_mapping[0]))
+
+/* map in IO */
+unsigned long setup_io_pagetables(unsigned long start_mem)
+{
+ struct mapping *mp;
+ int i;
+
+ for (i = 0, mp = io_mapping; i < SIZEOFIO; i++, mp++) {
+ while ((mp->virtual & 1048575 || mp->physical & 1048575) && mp->length >= PAGE_SIZE) {
+ alloc_init_page(&start_mem, mp->virtual, mp->physical, DOMAIN_IO,
+ PTE_AP_WRITE);
+
+ mp->length -= PAGE_SIZE;
+ mp->virtual += PAGE_SIZE;
+ mp->physical += PAGE_SIZE;
+ }
+
+ while (mp->length >= 1048576) {
+ alloc_init_section(&start_mem, mp->virtual, mp->physical, DOMAIN_IO,
+ PMD_SECT_AP_WRITE);
+ mp->length -= 1048576;
+ mp->virtual += 1048576;
+ mp->physical += 1048576;
+ }
+
+ while (mp->length >= PAGE_SIZE) {
+ alloc_init_page(&start_mem, mp->virtual, mp->physical, DOMAIN_IO,
+ PTE_AP_WRITE);
+
+ mp->length -= PAGE_SIZE;
+ mp->virtual += PAGE_SIZE;
+ mp->physical += PAGE_SIZE;
+ }
+ }
+
+ return start_mem;
}
diff --git a/arch/arm/mm/proc-arm6,7.S b/arch/arm/mm/proc-arm6,7.S
index 776d0d57c..a853671fc 100644
--- a/arch/arm/mm/proc-arm6,7.S
+++ b/arch/arm/mm/proc-arm6,7.S
@@ -72,10 +72,10 @@ _arm6_7_switch_to:
stmfd sp!, {ip} @ Save cpsr_SVC
str sp, [r0, #TSS_SAVE] @ Save sp_SVC
ldr sp, [r1, #TSS_SAVE] @ Get saved sp_SVC
- ldr r0, [r1, #ADDR_LIMIT]
+ ldr r0, [r1, #TSK_ADDR_LIMIT]
teq r0, #0
- moveq r0, #KERNEL_DOMAIN
- movne r0, #USER_DOMAIN
+ moveq r0, #DOM_KERNELDOMAIN
+ movne r0, #DOM_USERDOMAIN
mcr p15, 0, r0, c3, c0 @ Set domain reg
ldr r0, [r1, #TSS_MEMMAP] @ Page table pointer
mov r1, #0
diff --git a/arch/arm/mm/proc-sa110.S b/arch/arm/mm/proc-sa110.S
index 7d53bf230..633e8c164 100644
--- a/arch/arm/mm/proc-sa110.S
+++ b/arch/arm/mm/proc-sa110.S
@@ -161,8 +161,6 @@ _sa110_flush_icache_area:
blt 1b
mcr p15, 0, r0, c7, c5, 0 @ flush I cache
mov pc, lr
-
-@LC0: .word _current
/*
* Function: sa110_switch_to (struct task_struct *prev, struct task_struct *next)
*
@@ -183,10 +181,10 @@ _sa110_switch_to:
stmfd sp!, {ip} @ Save cpsr_SVC
str sp, [r0, #TSS_SAVE] @ Save sp_SVC
ldr sp, [r1, #TSS_SAVE] @ Get saved sp_SVC
- ldr r0, [r1, #ADDR_LIMIT]
+ ldr r0, [r1, #TSK_ADDR_LIMIT]
teq r0, #0
- moveq r0, #KERNEL_DOMAIN
- movne r0, #USER_DOMAIN
+ moveq r0, #DOM_KERNELDOMAIN
+ movne r0, #DOM_USERDOMAIN
mcr p15, 0, r0, c3, c0 @ Set segment
ldr r0, [r1, #TSS_MEMMAP] @ Page table pointer
ldr r3, =Lclean_switch
@@ -227,8 +225,6 @@ _sa110_data_abort:
mov r2, r2, lsr #19 @ b1 = L
and r3, r2, #0x69 << 2
and r2, r2, #2
-// teq r3, #0x21 << 2
-// orreq r2, r2, #1 @ b0 = {LD,ST}RT
mrc p15, 0, r1, c5, c0, 0 @ get FSR
and r1, r1, #255
mov pc, lr
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-06 08:24:55 +0000