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authorRussell King <rmk+kernel@arm.linux.org.uk>2014-08-05 10:27:13 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2014-08-05 10:27:13 +0100
commit7109561524dc57b95fd3f9b61547268b9b6db8ed (patch)
treedf08f565b2c616b7e68fe35cd428a8c5ba3bfcb1 /arch/arm/mm
parent6bf755db4d5e7ccea61fb17727a183b9bd8945b1 (diff)
parent3bb70de692f70861f5c5729cd2b870d0104a7cc9 (diff)
downloadop-kernel-dev-7109561524dc57b95fd3f9b61547268b9b6db8ed.zip
op-kernel-dev-7109561524dc57b95fd3f9b61547268b9b6db8ed.tar.gz
Merge branches 'fixes' and 'misc' into for-next
Conflicts: arch/arm/kernel/iwmmxt.S arch/arm/mm/cache-l2x0.c arch/arm/mm/mmu.c
Diffstat (limited to 'arch/arm/mm')
-rw-r--r--arch/arm/mm/Kconfig7
-rw-r--r--arch/arm/mm/alignment.c4
-rw-r--r--arch/arm/mm/cache-fa.S19
-rw-r--r--arch/arm/mm/cache-l2x0.c2
-rw-r--r--arch/arm/mm/cache-nop.S5
-rw-r--r--arch/arm/mm/cache-v4.S13
-rw-r--r--arch/arm/mm/cache-v4wb.S15
-rw-r--r--arch/arm/mm/cache-v4wt.S13
-rw-r--r--arch/arm/mm/cache-v6.S20
-rw-r--r--arch/arm/mm/cache-v7.S30
-rw-r--r--arch/arm/mm/dump.c4
-rw-r--r--arch/arm/mm/l2c-l2x0-resume.S7
-rw-r--r--arch/arm/mm/mmu.c45
-rw-r--r--arch/arm/mm/proc-arm1020.S34
-rw-r--r--arch/arm/mm/proc-arm1020e.S34
-rw-r--r--arch/arm/mm/proc-arm1022.S34
-rw-r--r--arch/arm/mm/proc-arm1026.S34
-rw-r--r--arch/arm/mm/proc-arm720.S16
-rw-r--r--arch/arm/mm/proc-arm740.S8
-rw-r--r--arch/arm/mm/proc-arm7tdmi.S8
-rw-r--r--arch/arm/mm/proc-arm920.S34
-rw-r--r--arch/arm/mm/proc-arm922.S34
-rw-r--r--arch/arm/mm/proc-arm925.S34
-rw-r--r--arch/arm/mm/proc-arm926.S34
-rw-r--r--arch/arm/mm/proc-arm940.S24
-rw-r--r--arch/arm/mm/proc-arm946.S30
-rw-r--r--arch/arm/mm/proc-arm9tdmi.S8
-rw-r--r--arch/arm/mm/proc-fa526.S16
-rw-r--r--arch/arm/mm/proc-feroceon.S44
-rw-r--r--arch/arm/mm/proc-mohawk.S34
-rw-r--r--arch/arm/mm/proc-sa110.S16
-rw-r--r--arch/arm/mm/proc-sa1100.S16
-rw-r--r--arch/arm/mm/proc-v6.S16
-rw-r--r--arch/arm/mm/proc-v7-2level.S4
-rw-r--r--arch/arm/mm/proc-v7-3level.S14
-rw-r--r--arch/arm/mm/proc-v7.S74
-rw-r--r--arch/arm/mm/proc-v7m.S18
-rw-r--r--arch/arm/mm/proc-xsc3.S32
-rw-r--r--arch/arm/mm/proc-xscale.S34
-rw-r--r--arch/arm/mm/tlb-fa.S7
-rw-r--r--arch/arm/mm/tlb-v4.S5
-rw-r--r--arch/arm/mm/tlb-v4wb.S7
-rw-r--r--arch/arm/mm/tlb-v4wbi.S7
-rw-r--r--arch/arm/mm/tlb-v6.S5
-rw-r--r--arch/arm/mm/tlb-v7.S4
45 files changed, 505 insertions, 398 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index c348eae..df46620 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -907,8 +907,8 @@ config PL310_ERRATA_588369
They are architecturally defined to behave as the execution of a
clean operation followed immediately by an invalidate operation,
both performing to the same memory location. This functionality
- is not correctly implemented in PL310 as clean lines are not
- invalidated as a result of these operations.
+ is not correctly implemented in PL310 prior to r2p0 (fixed in r2p0)
+ as clean lines are not invalidated as a result of these operations.
config PL310_ERRATA_727915
bool "PL310 errata: Background Clean & Invalidate by Way operation can cause data corruption"
@@ -918,7 +918,8 @@ config PL310_ERRATA_727915
PL310 can handle normal accesses while it is in progress. Under very
rare circumstances, due to this erratum, write data can be lost when
PL310 treats a cacheable write transaction during a Clean &
- Invalidate by Way operation.
+ Invalidate by Way operation. Revisions prior to r3p1 are affected by
+ this errata (fixed in r3p1).
config PL310_ERRATA_753970
bool "PL310 errata: cache sync operation may be faulty"
diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index b8cb1a2..0c1ab49 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -76,6 +76,7 @@
static unsigned long ai_user;
static unsigned long ai_sys;
+static void *ai_sys_last_pc;
static unsigned long ai_skipped;
static unsigned long ai_half;
static unsigned long ai_word;
@@ -130,7 +131,7 @@ static const char *usermode_action[] = {
static int alignment_proc_show(struct seq_file *m, void *v)
{
seq_printf(m, "User:\t\t%lu\n", ai_user);
- seq_printf(m, "System:\t\t%lu\n", ai_sys);
+ seq_printf(m, "System:\t\t%lu (%pF)\n", ai_sys, ai_sys_last_pc);
seq_printf(m, "Skipped:\t%lu\n", ai_skipped);
seq_printf(m, "Half:\t\t%lu\n", ai_half);
seq_printf(m, "Word:\t\t%lu\n", ai_word);
@@ -794,6 +795,7 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
goto user;
ai_sys += 1;
+ ai_sys_last_pc = (void *)instruction_pointer(regs);
fixup:
diff --git a/arch/arm/mm/cache-fa.S b/arch/arm/mm/cache-fa.S
index e505bef..2f0c588 100644
--- a/arch/arm/mm/cache-fa.S
+++ b/arch/arm/mm/cache-fa.S
@@ -15,6 +15,7 @@
*/
#include <linux/linkage.h>
#include <linux/init.h>
+#include <asm/assembler.h>
#include <asm/memory.h>
#include <asm/page.h>
@@ -45,7 +46,7 @@
ENTRY(fa_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(fa_flush_icache_all)
/*
@@ -71,7 +72,7 @@ __flush_whole_cache:
mcrne p15, 0, ip, c7, c5, 6 @ invalidate BTB
mcrne p15, 0, ip, c7, c10, 4 @ drain write buffer
mcrne p15, 0, ip, c7, c5, 4 @ prefetch flush
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -99,7 +100,7 @@ ENTRY(fa_flush_user_cache_range)
mcrne p15, 0, ip, c7, c5, 6 @ invalidate BTB
mcrne p15, 0, ip, c7, c10, 4 @ data write barrier
mcrne p15, 0, ip, c7, c5, 4 @ prefetch flush
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -135,7 +136,7 @@ ENTRY(fa_coherent_user_range)
mcr p15, 0, r0, c7, c5, 6 @ invalidate BTB
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
mcr p15, 0, r0, c7, c5, 4 @ prefetch flush
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -155,7 +156,7 @@ ENTRY(fa_flush_kern_dcache_area)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -181,7 +182,7 @@ fa_dma_inv_range:
blo 1b
mov r0, #0
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -199,7 +200,7 @@ fa_dma_clean_range:
blo 1b
mov r0, #0
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start,end)
@@ -214,7 +215,7 @@ ENTRY(fa_dma_flush_range)
blo 1b
mov r0, #0
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -237,7 +238,7 @@ ENDPROC(fa_dma_map_area)
* - dir - DMA direction
*/
ENTRY(fa_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(fa_dma_unmap_area)
.globl fa_flush_kern_cache_louis
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index 7c3fb41..5f2c988 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -665,7 +665,7 @@ static int l2c310_cpu_enable_flz(struct notifier_block *nb, unsigned long act, v
static void __init l2c310_enable(void __iomem *base, u32 aux, unsigned num_lock)
{
unsigned rev = readl_relaxed(base + L2X0_CACHE_ID) & L2X0_CACHE_ID_RTL_MASK;
- bool cortex_a9 = read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9;
+ bool cortex_a9 = read_cpuid_part() == ARM_CPU_PART_CORTEX_A9;
if (rev >= L310_CACHE_ID_RTL_R2P0) {
if (cortex_a9) {
diff --git a/arch/arm/mm/cache-nop.S b/arch/arm/mm/cache-nop.S
index 8e12ddc..f1cc986 100644
--- a/arch/arm/mm/cache-nop.S
+++ b/arch/arm/mm/cache-nop.S
@@ -5,11 +5,12 @@
*/
#include <linux/linkage.h>
#include <linux/init.h>
+#include <asm/assembler.h>
#include "proc-macros.S"
ENTRY(nop_flush_icache_all)
- mov pc, lr
+ ret lr
ENDPROC(nop_flush_icache_all)
.globl nop_flush_kern_cache_all
@@ -29,7 +30,7 @@ ENDPROC(nop_flush_icache_all)
ENTRY(nop_coherent_user_range)
mov r0, 0
- mov pc, lr
+ ret lr
ENDPROC(nop_coherent_user_range)
.globl nop_flush_kern_dcache_area
diff --git a/arch/arm/mm/cache-v4.S b/arch/arm/mm/cache-v4.S
index a7ba68f..91e3adf 100644
--- a/arch/arm/mm/cache-v4.S
+++ b/arch/arm/mm/cache-v4.S
@@ -9,6 +9,7 @@
*/
#include <linux/linkage.h>
#include <linux/init.h>
+#include <asm/assembler.h>
#include <asm/page.h>
#include "proc-macros.S"
@@ -18,7 +19,7 @@
* Unconditionally clean and invalidate the entire icache.
*/
ENTRY(v4_flush_icache_all)
- mov pc, lr
+ ret lr
ENDPROC(v4_flush_icache_all)
/*
@@ -40,7 +41,7 @@ ENTRY(v4_flush_kern_cache_all)
#ifdef CONFIG_CPU_CP15
mov r0, #0
mcr p15, 0, r0, c7, c7, 0 @ flush ID cache
- mov pc, lr
+ ret lr
#else
/* FALLTHROUGH */
#endif
@@ -59,7 +60,7 @@ ENTRY(v4_flush_user_cache_range)
#ifdef CONFIG_CPU_CP15
mov ip, #0
mcr p15, 0, ip, c7, c7, 0 @ flush ID cache
- mov pc, lr
+ ret lr
#else
/* FALLTHROUGH */
#endif
@@ -89,7 +90,7 @@ ENTRY(v4_coherent_kern_range)
*/
ENTRY(v4_coherent_user_range)
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -116,7 +117,7 @@ ENTRY(v4_dma_flush_range)
mov r0, #0
mcr p15, 0, r0, c7, c7, 0 @ flush ID cache
#endif
- mov pc, lr
+ ret lr
/*
* dma_unmap_area(start, size, dir)
@@ -136,7 +137,7 @@ ENTRY(v4_dma_unmap_area)
* - dir - DMA direction
*/
ENTRY(v4_dma_map_area)
- mov pc, lr
+ ret lr
ENDPROC(v4_dma_unmap_area)
ENDPROC(v4_dma_map_area)
diff --git a/arch/arm/mm/cache-v4wb.S b/arch/arm/mm/cache-v4wb.S
index cd49453..2522f8c 100644
--- a/arch/arm/mm/cache-v4wb.S
+++ b/arch/arm/mm/cache-v4wb.S
@@ -9,6 +9,7 @@
*/
#include <linux/linkage.h>
#include <linux/init.h>
+#include <asm/assembler.h>
#include <asm/memory.h>
#include <asm/page.h>
#include "proc-macros.S"
@@ -58,7 +59,7 @@ flush_base:
ENTRY(v4wb_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(v4wb_flush_icache_all)
/*
@@ -94,7 +95,7 @@ __flush_whole_cache:
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -122,7 +123,7 @@ ENTRY(v4wb_flush_user_cache_range)
blo 1b
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c10, 4 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -170,7 +171,7 @@ ENTRY(v4wb_coherent_user_range)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
@@ -195,7 +196,7 @@ v4wb_dma_inv_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -212,7 +213,7 @@ v4wb_dma_clean_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -248,7 +249,7 @@ ENDPROC(v4wb_dma_map_area)
* - dir - DMA direction
*/
ENTRY(v4wb_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(v4wb_dma_unmap_area)
.globl v4wb_flush_kern_cache_louis
diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S
index 11e5e58..a0982ce 100644
--- a/arch/arm/mm/cache-v4wt.S
+++ b/arch/arm/mm/cache-v4wt.S
@@ -13,6 +13,7 @@
*/
#include <linux/linkage.h>
#include <linux/init.h>
+#include <asm/assembler.h>
#include <asm/page.h>
#include "proc-macros.S"
@@ -48,7 +49,7 @@
ENTRY(v4wt_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(v4wt_flush_icache_all)
/*
@@ -71,7 +72,7 @@ __flush_whole_cache:
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
mcr p15, 0, ip, c7, c6, 0 @ invalidate D cache
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -94,7 +95,7 @@ ENTRY(v4wt_flush_user_cache_range)
add r0, r0, #CACHE_DLINESIZE
cmp r0, r1
blo 1b
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -126,7 +127,7 @@ ENTRY(v4wt_coherent_user_range)
cmp r0, r1
blo 1b
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -160,7 +161,7 @@ v4wt_dma_inv_range:
add r0, r0, #CACHE_DLINESIZE
cmp r0, r1
blo 1b
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -192,7 +193,7 @@ ENTRY(v4wt_dma_unmap_area)
* - dir - DMA direction
*/
ENTRY(v4wt_dma_map_area)
- mov pc, lr
+ ret lr
ENDPROC(v4wt_dma_unmap_area)
ENDPROC(v4wt_dma_map_area)
diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S
index d8fd4d4..2465995 100644
--- a/arch/arm/mm/cache-v6.S
+++ b/arch/arm/mm/cache-v6.S
@@ -51,7 +51,7 @@ ENTRY(v6_flush_icache_all)
#else
mcr p15, 0, r0, c7, c5, 0 @ invalidate I-cache
#endif
- mov pc, lr
+ ret lr
ENDPROC(v6_flush_icache_all)
/*
@@ -73,7 +73,7 @@ ENTRY(v6_flush_kern_cache_all)
#else
mcr p15, 0, r0, c7, c15, 0 @ Cache clean+invalidate
#endif
- mov pc, lr
+ ret lr
/*
* v6_flush_cache_all()
@@ -98,7 +98,7 @@ ENTRY(v6_flush_user_cache_all)
* - we have a VIPT cache.
*/
ENTRY(v6_flush_user_cache_range)
- mov pc, lr
+ ret lr
/*
* v6_coherent_kern_range(start,end)
@@ -150,7 +150,7 @@ ENTRY(v6_coherent_user_range)
#else
mcr p15, 0, r0, c7, c5, 6 @ invalidate BTB
#endif
- mov pc, lr
+ ret lr
/*
* Fault handling for the cache operation above. If the virtual address in r0
@@ -158,7 +158,7 @@ ENTRY(v6_coherent_user_range)
*/
9001:
mov r0, #-EFAULT
- mov pc, lr
+ ret lr
UNWIND(.fnend )
ENDPROC(v6_coherent_user_range)
ENDPROC(v6_coherent_kern_range)
@@ -188,7 +188,7 @@ ENTRY(v6_flush_kern_dcache_area)
mov r0, #0
mcr p15, 0, r0, c7, c10, 4
#endif
- mov pc, lr
+ ret lr
/*
@@ -239,7 +239,7 @@ v6_dma_inv_range:
blo 1b
mov r0, #0
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* v6_dma_clean_range(start,end)
@@ -262,7 +262,7 @@ v6_dma_clean_range:
blo 1b
mov r0, #0
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* v6_dma_flush_range(start,end)
@@ -290,7 +290,7 @@ ENTRY(v6_dma_flush_range)
blo 1b
mov r0, #0
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -323,7 +323,7 @@ ENTRY(v6_dma_unmap_area)
teq r2, #DMA_TO_DEVICE
bne v6_dma_inv_range
#endif
- mov pc, lr
+ ret lr
ENDPROC(v6_dma_unmap_area)
.globl v6_flush_kern_cache_louis
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index 615c99e..b966656 100644
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -61,7 +61,7 @@ ENTRY(v7_invalidate_l1)
bgt 1b
dsb st
isb
- mov pc, lr
+ ret lr
ENDPROC(v7_invalidate_l1)
/*
@@ -76,7 +76,7 @@ ENTRY(v7_flush_icache_all)
mov r0, #0
ALT_SMP(mcr p15, 0, r0, c7, c1, 0) @ invalidate I-cache inner shareable
ALT_UP(mcr p15, 0, r0, c7, c5, 0) @ I+BTB cache invalidate
- mov pc, lr
+ ret lr
ENDPROC(v7_flush_icache_all)
/*
@@ -94,7 +94,7 @@ ENTRY(v7_flush_dcache_louis)
ALT_UP(ands r3, r0, #(7 << 27)) @ extract LoUU from clidr
#ifdef CONFIG_ARM_ERRATA_643719
ALT_SMP(mrceq p15, 0, r2, c0, c0, 0) @ read main ID register
- ALT_UP(moveq pc, lr) @ LoUU is zero, so nothing to do
+ ALT_UP(reteq lr) @ LoUU is zero, so nothing to do
ldreq r1, =0x410fc090 @ ID of ARM Cortex A9 r0p?
biceq r2, r2, #0x0000000f @ clear minor revision number
teqeq r2, r1 @ test for errata affected core and if so...
@@ -102,7 +102,7 @@ ENTRY(v7_flush_dcache_louis)
#endif
ALT_SMP(mov r3, r3, lsr #20) @ r3 = LoUIS * 2
ALT_UP(mov r3, r3, lsr #26) @ r3 = LoUU * 2
- moveq pc, lr @ return if level == 0
+ reteq lr @ return if level == 0
mov r10, #0 @ r10 (starting level) = 0
b flush_levels @ start flushing cache levels
ENDPROC(v7_flush_dcache_louis)
@@ -168,7 +168,7 @@ finished:
mcr p15, 2, r10, c0, c0, 0 @ select current cache level in cssr
dsb st
isb
- mov pc, lr
+ ret lr
ENDPROC(v7_flush_dcache_all)
/*
@@ -191,7 +191,7 @@ ENTRY(v7_flush_kern_cache_all)
ALT_UP(mcr p15, 0, r0, c7, c5, 0) @ I+BTB cache invalidate
ARM( ldmfd sp!, {r4-r5, r7, r9-r11, lr} )
THUMB( ldmfd sp!, {r4-r7, r9-r11, lr} )
- mov pc, lr
+ ret lr
ENDPROC(v7_flush_kern_cache_all)
/*
@@ -209,7 +209,7 @@ ENTRY(v7_flush_kern_cache_louis)
ALT_UP(mcr p15, 0, r0, c7, c5, 0) @ I+BTB cache invalidate
ARM( ldmfd sp!, {r4-r5, r7, r9-r11, lr} )
THUMB( ldmfd sp!, {r4-r7, r9-r11, lr} )
- mov pc, lr
+ ret lr
ENDPROC(v7_flush_kern_cache_louis)
/*
@@ -235,7 +235,7 @@ ENTRY(v7_flush_user_cache_all)
* - we have a VIPT cache.
*/
ENTRY(v7_flush_user_cache_range)
- mov pc, lr
+ ret lr
ENDPROC(v7_flush_user_cache_all)
ENDPROC(v7_flush_user_cache_range)
@@ -296,7 +296,7 @@ ENTRY(v7_coherent_user_range)
ALT_UP(mcr p15, 0, r0, c7, c5, 6) @ invalidate BTB
dsb ishst
isb
- mov pc, lr
+ ret lr
/*
* Fault handling for the cache operation above. If the virtual address in r0
@@ -307,7 +307,7 @@ ENTRY(v7_coherent_user_range)
dsb
#endif
mov r0, #-EFAULT
- mov pc, lr
+ ret lr
UNWIND(.fnend )
ENDPROC(v7_coherent_kern_range)
ENDPROC(v7_coherent_user_range)
@@ -336,7 +336,7 @@ ENTRY(v7_flush_kern_dcache_area)
cmp r0, r1
blo 1b
dsb st
- mov pc, lr
+ ret lr
ENDPROC(v7_flush_kern_dcache_area)
/*
@@ -369,7 +369,7 @@ v7_dma_inv_range:
cmp r0, r1
blo 1b
dsb st
- mov pc, lr
+ ret lr
ENDPROC(v7_dma_inv_range)
/*
@@ -391,7 +391,7 @@ v7_dma_clean_range:
cmp r0, r1
blo 1b
dsb st
- mov pc, lr
+ ret lr
ENDPROC(v7_dma_clean_range)
/*
@@ -413,7 +413,7 @@ ENTRY(v7_dma_flush_range)
cmp r0, r1
blo 1b
dsb st
- mov pc, lr
+ ret lr
ENDPROC(v7_dma_flush_range)
/*
@@ -439,7 +439,7 @@ ENTRY(v7_dma_unmap_area)
add r1, r1, r0
teq r2, #DMA_TO_DEVICE
bne v7_dma_inv_range
- mov pc, lr
+ ret lr
ENDPROC(v7_dma_unmap_area)
__INITDATA
diff --git a/arch/arm/mm/dump.c b/arch/arm/mm/dump.c
index c508f41a..5942493 100644
--- a/arch/arm/mm/dump.c
+++ b/arch/arm/mm/dump.c
@@ -126,8 +126,8 @@ static const struct prot_bits section_bits[] = {
.val = PMD_SECT_USER,
.set = "USR",
}, {
- .mask = PMD_SECT_RDONLY,
- .val = PMD_SECT_RDONLY,
+ .mask = L_PMD_SECT_RDONLY,
+ .val = L_PMD_SECT_RDONLY,
.set = "ro",
.clear = "RW",
#elif __LINUX_ARM_ARCH__ >= 6
diff --git a/arch/arm/mm/l2c-l2x0-resume.S b/arch/arm/mm/l2c-l2x0-resume.S
index 99b05f2..fda415e4 100644
--- a/arch/arm/mm/l2c-l2x0-resume.S
+++ b/arch/arm/mm/l2c-l2x0-resume.S
@@ -6,6 +6,7 @@
* This code can only be used to if you are running in the secure world.
*/
#include <linux/linkage.h>
+#include <asm/assembler.h>
#include <asm/hardware/cache-l2x0.h>
.text
@@ -27,7 +28,7 @@ ENTRY(l2c310_early_resume)
@ Check that the address has been initialised
teq r1, #0
- moveq pc, lr
+ reteq lr
@ The prefetch and power control registers are revision dependent
@ and can be written whether or not the L2 cache is enabled
@@ -41,7 +42,7 @@ ENTRY(l2c310_early_resume)
@ Don't setup the L2 cache if it is already enabled
ldr r0, [r1, #L2X0_CTRL]
tst r0, #L2X0_CTRL_EN
- movne pc, lr
+ retne lr
str r3, [r1, #L310_TAG_LATENCY_CTRL]
str r4, [r1, #L310_DATA_LATENCY_CTRL]
@@ -51,7 +52,7 @@ ENTRY(l2c310_early_resume)
str r2, [r1, #L2X0_AUX_CTRL]
mov r9, #L2X0_CTRL_EN
str r9, [r1, #L2X0_CTRL]
- mov pc, lr
+ ret lr
ENDPROC(l2c310_early_resume)
.align
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 6e3ba8d..8348ed6 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1434,23 +1434,64 @@ void __init early_paging_init(const struct machine_desc *mdesc,
dsb(ishst);
isb();
- /* remap level 1 table */
+ /*
+ * FIXME: This code is not architecturally compliant: we modify
+ * the mappings in-place, indeed while they are in use by this
+ * very same code. This may lead to unpredictable behaviour of
+ * the CPU.
+ *
+ * Even modifying the mappings in a separate page table does
+ * not resolve this.
+ *
+ * The architecture strongly recommends that when a mapping is
+ * changed, that it is changed by first going via an invalid
+ * mapping and back to the new mapping. This is to ensure that
+ * no TLB conflicts (caused by the TLB having more than one TLB
+ * entry match a translation) can occur. However, doing that
+ * here will result in unmapping the code we are running.
+ */
+ pr_warn("WARNING: unsafe modification of in-place page tables - tainting kernel\n");
+ add_taint(TAINT_CPU_OUT_OF_SPEC, LOCKDEP_STILL_OK);
+
+ /*
+ * Remap level 1 table. This changes the physical addresses
+ * used to refer to the level 2 page tables to the high
+ * physical address alias, leaving everything else the same.
+ */
for (i = 0; i < PTRS_PER_PGD; pud0++, i++) {
set_pud(pud0,
__pud(__pa(pmd0) | PMD_TYPE_TABLE | L_PGD_SWAPPER));
pmd0 += PTRS_PER_PMD;
}
- /* remap pmds for kernel mapping */
+ /*
+ * Remap the level 2 table, pointing the mappings at the high
+ * physical address alias of these pages.
+ */
phys = __pa(map_start);
do {
*pmdk++ = __pmd(phys | pmdprot);
phys += PMD_SIZE;
} while (phys < map_end);
+ /*
+ * Ensure that the above updates are flushed out of the cache.
+ * This is not strictly correct; on a system where the caches
+ * are coherent with each other, but the MMU page table walks
+ * may not be coherent, flush_cache_all() may be a no-op, and
+ * this will fail.
+ */
flush_cache_all();
+
+ /*
+ * Re-write the TTBR values to point them at the high physical
+ * alias of the page tables. We expect __va() will work on
+ * cpu_get_pgd(), which returns the value of TTBR0.
+ */
cpu_switch_mm(pgd0, &init_mm);
cpu_set_ttbr(1, __pa(pgd0) + TTBR1_OFFSET);
+
+ /* Finally flush any stale TLB values. */
local_flush_bp_all();
local_flush_tlb_all();
}
diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
index d1a2d05..86ee5d4 100644
--- a/arch/arm/mm/proc-arm1020.S
+++ b/arch/arm/mm/proc-arm1020.S
@@ -73,7 +73,7 @@
* cpu_arm1020_proc_init()
*/
ENTRY(cpu_arm1020_proc_init)
- mov pc, lr
+ ret lr
/*
* cpu_arm1020_proc_fin()
@@ -83,7 +83,7 @@ ENTRY(cpu_arm1020_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_arm1020_reset(loc)
@@ -107,7 +107,7 @@ ENTRY(cpu_arm1020_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm1020_reset)
.popsection
@@ -117,7 +117,7 @@ ENDPROC(cpu_arm1020_reset)
.align 5
ENTRY(cpu_arm1020_do_idle)
mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
- mov pc, lr
+ ret lr
/* ================================= CACHE ================================ */
@@ -133,7 +133,7 @@ ENTRY(arm1020_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
#endif
- mov pc, lr
+ ret lr
ENDPROC(arm1020_flush_icache_all)
/*
@@ -169,7 +169,7 @@ __flush_whole_cache:
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
#endif
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -200,7 +200,7 @@ ENTRY(arm1020_flush_user_cache_range)
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
#endif
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -242,7 +242,7 @@ ENTRY(arm1020_coherent_user_range)
blo 1b
mcr p15, 0, ip, c7, c10, 4 @ drain WB
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -264,7 +264,7 @@ ENTRY(arm1020_flush_kern_dcache_area)
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -297,7 +297,7 @@ arm1020_dma_inv_range:
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -320,7 +320,7 @@ arm1020_dma_clean_range:
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -342,7 +342,7 @@ ENTRY(arm1020_dma_flush_range)
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -365,7 +365,7 @@ ENDPROC(arm1020_dma_map_area)
* - dir - DMA direction
*/
ENTRY(arm1020_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(arm1020_dma_unmap_area)
.globl arm1020_flush_kern_cache_louis
@@ -384,7 +384,7 @@ ENTRY(cpu_arm1020_dcache_clean_area)
subs r1, r1, #CACHE_DLINESIZE
bhi 1b
#endif
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -423,7 +423,7 @@ ENTRY(cpu_arm1020_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs
#endif /* CONFIG_MMU */
- mov pc, lr
+ ret lr
/*
* cpu_arm1020_set_pte(ptep, pte)
@@ -441,7 +441,7 @@ ENTRY(cpu_arm1020_set_pte_ext)
#endif
mcr p15, 0, r0, c7, c10, 4 @ drain WB
#endif /* CONFIG_MMU */
- mov pc, lr
+ ret lr
.type __arm1020_setup, #function
__arm1020_setup:
@@ -460,7 +460,7 @@ __arm1020_setup:
#ifdef CONFIG_CPU_CACHE_ROUND_ROBIN
orr r0, r0, #0x4000 @ .R.. .... .... ....
#endif
- mov pc, lr
+ ret lr
.size __arm1020_setup, . - __arm1020_setup
/*
diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S
index 9d89405..a6331d7 100644
--- a/arch/arm/mm/proc-arm1020e.S
+++ b/arch/arm/mm/proc-arm1020e.S
@@ -73,7 +73,7 @@
* cpu_arm1020e_proc_init()
*/
ENTRY(cpu_arm1020e_proc_init)
- mov pc, lr
+ ret lr
/*
* cpu_arm1020e_proc_fin()
@@ -83,7 +83,7 @@ ENTRY(cpu_arm1020e_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_arm1020e_reset(loc)
@@ -107,7 +107,7 @@ ENTRY(cpu_arm1020e_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm1020e_reset)
.popsection
@@ -117,7 +117,7 @@ ENDPROC(cpu_arm1020e_reset)
.align 5
ENTRY(cpu_arm1020e_do_idle)
mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
- mov pc, lr
+ ret lr
/* ================================= CACHE ================================ */
@@ -133,7 +133,7 @@ ENTRY(arm1020e_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
#endif
- mov pc, lr
+ ret lr
ENDPROC(arm1020e_flush_icache_all)
/*
@@ -168,7 +168,7 @@ __flush_whole_cache:
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
#endif
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -197,7 +197,7 @@ ENTRY(arm1020e_flush_user_cache_range)
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
#endif
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -236,7 +236,7 @@ ENTRY(arm1020e_coherent_user_range)
blo 1b
mcr p15, 0, ip, c7, c10, 4 @ drain WB
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -257,7 +257,7 @@ ENTRY(arm1020e_flush_kern_dcache_area)
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -286,7 +286,7 @@ arm1020e_dma_inv_range:
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -308,7 +308,7 @@ arm1020e_dma_clean_range:
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -328,7 +328,7 @@ ENTRY(arm1020e_dma_flush_range)
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -351,7 +351,7 @@ ENDPROC(arm1020e_dma_map_area)
* - dir - DMA direction
*/
ENTRY(arm1020e_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(arm1020e_dma_unmap_area)
.globl arm1020e_flush_kern_cache_louis
@@ -369,7 +369,7 @@ ENTRY(cpu_arm1020e_dcache_clean_area)
subs r1, r1, #CACHE_DLINESIZE
bhi 1b
#endif
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -407,7 +407,7 @@ ENTRY(cpu_arm1020e_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs
#endif
- mov pc, lr
+ ret lr
/*
* cpu_arm1020e_set_pte(ptep, pte)
@@ -423,7 +423,7 @@ ENTRY(cpu_arm1020e_set_pte_ext)
mcr p15, 0, r0, c7, c10, 1 @ clean D entry
#endif
#endif /* CONFIG_MMU */
- mov pc, lr
+ ret lr
.type __arm1020e_setup, #function
__arm1020e_setup:
@@ -441,7 +441,7 @@ __arm1020e_setup:
#ifdef CONFIG_CPU_CACHE_ROUND_ROBIN
orr r0, r0, #0x4000 @ .R.. .... .... ....
#endif
- mov pc, lr
+ ret lr
.size __arm1020e_setup, . - __arm1020e_setup
/*
diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S
index 6f01a0a..a126b7a 100644
--- a/arch/arm/mm/proc-arm1022.S
+++ b/arch/arm/mm/proc-arm1022.S
@@ -62,7 +62,7 @@
* cpu_arm1022_proc_init()
*/
ENTRY(cpu_arm1022_proc_init)
- mov pc, lr
+ ret lr
/*
* cpu_arm1022_proc_fin()
@@ -72,7 +72,7 @@ ENTRY(cpu_arm1022_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_arm1022_reset(loc)
@@ -96,7 +96,7 @@ ENTRY(cpu_arm1022_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm1022_reset)
.popsection
@@ -106,7 +106,7 @@ ENDPROC(cpu_arm1022_reset)
.align 5
ENTRY(cpu_arm1022_do_idle)
mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
- mov pc, lr
+ ret lr
/* ================================= CACHE ================================ */
@@ -122,7 +122,7 @@ ENTRY(arm1022_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
#endif
- mov pc, lr
+ ret lr
ENDPROC(arm1022_flush_icache_all)
/*
@@ -156,7 +156,7 @@ __flush_whole_cache:
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
#endif
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -185,7 +185,7 @@ ENTRY(arm1022_flush_user_cache_range)
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
#endif
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -225,7 +225,7 @@ ENTRY(arm1022_coherent_user_range)
blo 1b
mcr p15, 0, ip, c7, c10, 4 @ drain WB
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -246,7 +246,7 @@ ENTRY(arm1022_flush_kern_dcache_area)
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -275,7 +275,7 @@ arm1022_dma_inv_range:
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -297,7 +297,7 @@ arm1022_dma_clean_range:
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -317,7 +317,7 @@ ENTRY(arm1022_dma_flush_range)
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -340,7 +340,7 @@ ENDPROC(arm1022_dma_map_area)
* - dir - DMA direction
*/
ENTRY(arm1022_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(arm1022_dma_unmap_area)
.globl arm1022_flush_kern_cache_louis
@@ -358,7 +358,7 @@ ENTRY(cpu_arm1022_dcache_clean_area)
subs r1, r1, #CACHE_DLINESIZE
bhi 1b
#endif
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -389,7 +389,7 @@ ENTRY(cpu_arm1022_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs
#endif
- mov pc, lr
+ ret lr
/*
* cpu_arm1022_set_pte_ext(ptep, pte, ext)
@@ -405,7 +405,7 @@ ENTRY(cpu_arm1022_set_pte_ext)
mcr p15, 0, r0, c7, c10, 1 @ clean D entry
#endif
#endif /* CONFIG_MMU */
- mov pc, lr
+ ret lr
.type __arm1022_setup, #function
__arm1022_setup:
@@ -423,7 +423,7 @@ __arm1022_setup:
#ifdef CONFIG_CPU_CACHE_ROUND_ROBIN
orr r0, r0, #0x4000 @ .R..............
#endif
- mov pc, lr
+ ret lr
.size __arm1022_setup, . - __arm1022_setup
/*
diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S
index 4799a24..fc29406 100644
--- a/arch/arm/mm/proc-arm1026.S
+++ b/arch/arm/mm/proc-arm1026.S
@@ -62,7 +62,7 @@
* cpu_arm1026_proc_init()
*/
ENTRY(cpu_arm1026_proc_init)
- mov pc, lr
+ ret lr
/*
* cpu_arm1026_proc_fin()
@@ -72,7 +72,7 @@ ENTRY(cpu_arm1026_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_arm1026_reset(loc)
@@ -96,7 +96,7 @@ ENTRY(cpu_arm1026_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm1026_reset)
.popsection
@@ -106,7 +106,7 @@ ENDPROC(cpu_arm1026_reset)
.align 5
ENTRY(cpu_arm1026_do_idle)
mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
- mov pc, lr
+ ret lr
/* ================================= CACHE ================================ */
@@ -122,7 +122,7 @@ ENTRY(arm1026_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
#endif
- mov pc, lr
+ ret lr
ENDPROC(arm1026_flush_icache_all)
/*
@@ -151,7 +151,7 @@ __flush_whole_cache:
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
#endif
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -180,7 +180,7 @@ ENTRY(arm1026_flush_user_cache_range)
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
#endif
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -219,7 +219,7 @@ ENTRY(arm1026_coherent_user_range)
blo 1b
mcr p15, 0, ip, c7, c10, 4 @ drain WB
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -240,7 +240,7 @@ ENTRY(arm1026_flush_kern_dcache_area)
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -269,7 +269,7 @@ arm1026_dma_inv_range:
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -291,7 +291,7 @@ arm1026_dma_clean_range:
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -311,7 +311,7 @@ ENTRY(arm1026_dma_flush_range)
blo 1b
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -334,7 +334,7 @@ ENDPROC(arm1026_dma_map_area)
* - dir - DMA direction
*/
ENTRY(arm1026_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(arm1026_dma_unmap_area)
.globl arm1026_flush_kern_cache_louis
@@ -352,7 +352,7 @@ ENTRY(cpu_arm1026_dcache_clean_area)
subs r1, r1, #CACHE_DLINESIZE
bhi 1b
#endif
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -378,7 +378,7 @@ ENTRY(cpu_arm1026_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
mcr p15, 0, r1, c8, c7, 0 @ invalidate I & D TLBs
#endif
- mov pc, lr
+ ret lr
/*
* cpu_arm1026_set_pte_ext(ptep, pte, ext)
@@ -394,7 +394,7 @@ ENTRY(cpu_arm1026_set_pte_ext)
mcr p15, 0, r0, c7, c10, 1 @ clean D entry
#endif
#endif /* CONFIG_MMU */
- mov pc, lr
+ ret lr
.type __arm1026_setup, #function
__arm1026_setup:
@@ -417,7 +417,7 @@ __arm1026_setup:
#ifdef CONFIG_CPU_CACHE_ROUND_ROBIN
orr r0, r0, #0x4000 @ .R.. .... .... ....
#endif
- mov pc, lr
+ ret lr
.size __arm1026_setup, . - __arm1026_setup
/*
diff --git a/arch/arm/mm/proc-arm720.S b/arch/arm/mm/proc-arm720.S
index d42c37f..2baa66b 100644
--- a/arch/arm/mm/proc-arm720.S
+++ b/arch/arm/mm/proc-arm720.S
@@ -51,14 +51,14 @@
*/
ENTRY(cpu_arm720_dcache_clean_area)
ENTRY(cpu_arm720_proc_init)
- mov pc, lr
+ ret lr
ENTRY(cpu_arm720_proc_fin)
mrc p15, 0, r0, c1, c0, 0
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* Function: arm720_proc_do_idle(void)
@@ -66,7 +66,7 @@ ENTRY(cpu_arm720_proc_fin)
* Purpose : put the processor in proper idle mode
*/
ENTRY(cpu_arm720_do_idle)
- mov pc, lr
+ ret lr
/*
* Function: arm720_switch_mm(unsigned long pgd_phys)
@@ -81,7 +81,7 @@ ENTRY(cpu_arm720_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ update page table ptr
mcr p15, 0, r1, c8, c7, 0 @ flush TLB (v4)
#endif
- mov pc, lr
+ ret lr
/*
* Function: arm720_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext)
@@ -94,7 +94,7 @@ ENTRY(cpu_arm720_set_pte_ext)
#ifdef CONFIG_MMU
armv3_set_pte_ext wc_disable=0
#endif
- mov pc, lr
+ ret lr
/*
* Function: arm720_reset
@@ -112,7 +112,7 @@ ENTRY(cpu_arm720_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x2100 @ ..v....s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm720_reset)
.popsection
@@ -128,7 +128,7 @@ __arm710_setup:
bic r0, r0, r5
ldr r5, arm710_cr1_set
orr r0, r0, r5
- mov pc, lr @ __ret (head.S)
+ ret lr @ __ret (head.S)
.size __arm710_setup, . - __arm710_setup
/*
@@ -156,7 +156,7 @@ __arm720_setup:
mrc p15, 0, r0, c1, c0 @ get control register
bic r0, r0, r5
orr r0, r0, r6
- mov pc, lr @ __ret (head.S)
+ ret lr @ __ret (head.S)
.size __arm720_setup, . - __arm720_setup
/*
diff --git a/arch/arm/mm/proc-arm740.S b/arch/arm/mm/proc-arm740.S
index 9b0ae90..ac1ea6b 100644
--- a/arch/arm/mm/proc-arm740.S
+++ b/arch/arm/mm/proc-arm740.S
@@ -32,7 +32,7 @@ ENTRY(cpu_arm740_proc_init)
ENTRY(cpu_arm740_do_idle)
ENTRY(cpu_arm740_dcache_clean_area)
ENTRY(cpu_arm740_switch_mm)
- mov pc, lr
+ ret lr
/*
* cpu_arm740_proc_fin()
@@ -42,7 +42,7 @@ ENTRY(cpu_arm740_proc_fin)
bic r0, r0, #0x3f000000 @ bank/f/lock/s
bic r0, r0, #0x0000000c @ w-buffer/cache
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_arm740_reset(loc)
@@ -56,7 +56,7 @@ ENTRY(cpu_arm740_reset)
mrc p15, 0, ip, c1, c0, 0 @ get ctrl register
bic ip, ip, #0x0000000c @ ............wc..
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm740_reset)
.popsection
@@ -115,7 +115,7 @@ __arm740_setup:
@ need some benchmark
orr r0, r0, #0x0000000d @ MPU/Cache/WB
- mov pc, lr
+ ret lr
.size __arm740_setup, . - __arm740_setup
diff --git a/arch/arm/mm/proc-arm7tdmi.S b/arch/arm/mm/proc-arm7tdmi.S
index f6cc3f6..bf6ba4b 100644
--- a/arch/arm/mm/proc-arm7tdmi.S
+++ b/arch/arm/mm/proc-arm7tdmi.S
@@ -32,13 +32,13 @@ ENTRY(cpu_arm7tdmi_proc_init)
ENTRY(cpu_arm7tdmi_do_idle)
ENTRY(cpu_arm7tdmi_dcache_clean_area)
ENTRY(cpu_arm7tdmi_switch_mm)
- mov pc, lr
+ ret lr
/*
* cpu_arm7tdmi_proc_fin()
*/
ENTRY(cpu_arm7tdmi_proc_fin)
- mov pc, lr
+ ret lr
/*
* Function: cpu_arm7tdmi_reset(loc)
@@ -47,13 +47,13 @@ ENTRY(cpu_arm7tdmi_proc_fin)
*/
.pushsection .idmap.text, "ax"
ENTRY(cpu_arm7tdmi_reset)
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm7tdmi_reset)
.popsection
.type __arm7tdmi_setup, #function
__arm7tdmi_setup:
- mov pc, lr
+ ret lr
.size __arm7tdmi_setup, . - __arm7tdmi_setup
__INITDATA
diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S
index 549557d..22bf8dd 100644
--- a/arch/arm/mm/proc-arm920.S
+++ b/arch/arm/mm/proc-arm920.S
@@ -63,7 +63,7 @@
* cpu_arm920_proc_init()
*/
ENTRY(cpu_arm920_proc_init)
- mov pc, lr
+ ret lr
/*
* cpu_arm920_proc_fin()
@@ -73,7 +73,7 @@ ENTRY(cpu_arm920_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_arm920_reset(loc)
@@ -97,7 +97,7 @@ ENTRY(cpu_arm920_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm920_reset)
.popsection
@@ -107,7 +107,7 @@ ENDPROC(cpu_arm920_reset)
.align 5
ENTRY(cpu_arm920_do_idle)
mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
- mov pc, lr
+ ret lr
#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
@@ -120,7 +120,7 @@ ENTRY(cpu_arm920_do_idle)
ENTRY(arm920_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(arm920_flush_icache_all)
/*
@@ -151,7 +151,7 @@ __flush_whole_cache:
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -177,7 +177,7 @@ ENTRY(arm920_flush_user_cache_range)
blo 1b
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -211,7 +211,7 @@ ENTRY(arm920_coherent_user_range)
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -231,7 +231,7 @@ ENTRY(arm920_flush_kern_dcache_area)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -257,7 +257,7 @@ arm920_dma_inv_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -276,7 +276,7 @@ arm920_dma_clean_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -293,7 +293,7 @@ ENTRY(arm920_dma_flush_range)
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -316,7 +316,7 @@ ENDPROC(arm920_dma_map_area)
* - dir - DMA direction
*/
ENTRY(arm920_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(arm920_dma_unmap_area)
.globl arm920_flush_kern_cache_louis
@@ -332,7 +332,7 @@ ENTRY(cpu_arm920_dcache_clean_area)
add r0, r0, #CACHE_DLINESIZE
subs r1, r1, #CACHE_DLINESIZE
bhi 1b
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -367,7 +367,7 @@ ENTRY(cpu_arm920_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
#endif
- mov pc, lr
+ ret lr
/*
* cpu_arm920_set_pte(ptep, pte, ext)
@@ -382,7 +382,7 @@ ENTRY(cpu_arm920_set_pte_ext)
mcr p15, 0, r0, c7, c10, 1 @ clean D entry
mcr p15, 0, r0, c7, c10, 4 @ drain WB
#endif
- mov pc, lr
+ ret lr
/* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
.globl cpu_arm920_suspend_size
@@ -423,7 +423,7 @@ __arm920_setup:
mrc p15, 0, r0, c1, c0 @ get control register v4
bic r0, r0, r5
orr r0, r0, r6
- mov pc, lr
+ ret lr
.size __arm920_setup, . - __arm920_setup
/*
diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S
index 2a758b0..0c6d5ac 100644
--- a/arch/arm/mm/proc-arm922.S
+++ b/arch/arm/mm/proc-arm922.S
@@ -65,7 +65,7 @@
* cpu_arm922_proc_init()
*/
ENTRY(cpu_arm922_proc_init)
- mov pc, lr
+ ret lr
/*
* cpu_arm922_proc_fin()
@@ -75,7 +75,7 @@ ENTRY(cpu_arm922_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_arm922_reset(loc)
@@ -99,7 +99,7 @@ ENTRY(cpu_arm922_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm922_reset)
.popsection
@@ -109,7 +109,7 @@ ENDPROC(cpu_arm922_reset)
.align 5
ENTRY(cpu_arm922_do_idle)
mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
- mov pc, lr
+ ret lr
#ifndef CONFIG_CPU_DCACHE_WRITETHROUGH
@@ -122,7 +122,7 @@ ENTRY(cpu_arm922_do_idle)
ENTRY(arm922_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(arm922_flush_icache_all)
/*
@@ -153,7 +153,7 @@ __flush_whole_cache:
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -179,7 +179,7 @@ ENTRY(arm922_flush_user_cache_range)
blo 1b
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -213,7 +213,7 @@ ENTRY(arm922_coherent_user_range)
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -233,7 +233,7 @@ ENTRY(arm922_flush_kern_dcache_area)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -259,7 +259,7 @@ arm922_dma_inv_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -278,7 +278,7 @@ arm922_dma_clean_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -295,7 +295,7 @@ ENTRY(arm922_dma_flush_range)
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -318,7 +318,7 @@ ENDPROC(arm922_dma_map_area)
* - dir - DMA direction
*/
ENTRY(arm922_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(arm922_dma_unmap_area)
.globl arm922_flush_kern_cache_louis
@@ -336,7 +336,7 @@ ENTRY(cpu_arm922_dcache_clean_area)
subs r1, r1, #CACHE_DLINESIZE
bhi 1b
#endif
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -371,7 +371,7 @@ ENTRY(cpu_arm922_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
#endif
- mov pc, lr
+ ret lr
/*
* cpu_arm922_set_pte_ext(ptep, pte, ext)
@@ -386,7 +386,7 @@ ENTRY(cpu_arm922_set_pte_ext)
mcr p15, 0, r0, c7, c10, 1 @ clean D entry
mcr p15, 0, r0, c7, c10, 4 @ drain WB
#endif /* CONFIG_MMU */
- mov pc, lr
+ ret lr
.type __arm922_setup, #function
__arm922_setup:
@@ -401,7 +401,7 @@ __arm922_setup:
mrc p15, 0, r0, c1, c0 @ get control register v4
bic r0, r0, r5
orr r0, r0, r6
- mov pc, lr
+ ret lr
.size __arm922_setup, . - __arm922_setup
/*
diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S
index ba0d58e..c32d073 100644
--- a/arch/arm/mm/proc-arm925.S
+++ b/arch/arm/mm/proc-arm925.S
@@ -86,7 +86,7 @@
* cpu_arm925_proc_init()
*/
ENTRY(cpu_arm925_proc_init)
- mov pc, lr
+ ret lr
/*
* cpu_arm925_proc_fin()
@@ -96,7 +96,7 @@ ENTRY(cpu_arm925_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_arm925_reset(loc)
@@ -129,7 +129,7 @@ ENDPROC(cpu_arm925_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
/*
* cpu_arm925_do_idle()
@@ -145,7 +145,7 @@ ENTRY(cpu_arm925_do_idle)
mcr p15, 0, r2, c1, c0, 0 @ Disable I cache
mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
mcr p15, 0, r1, c1, c0, 0 @ Restore ICache enable
- mov pc, lr
+ ret lr
/*
* flush_icache_all()
@@ -155,7 +155,7 @@ ENTRY(cpu_arm925_do_idle)
ENTRY(arm925_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(arm925_flush_icache_all)
/*
@@ -188,7 +188,7 @@ __flush_whole_cache:
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -225,7 +225,7 @@ ENTRY(arm925_flush_user_cache_range)
blo 1b
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -259,7 +259,7 @@ ENTRY(arm925_coherent_user_range)
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -279,7 +279,7 @@ ENTRY(arm925_flush_kern_dcache_area)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -307,7 +307,7 @@ arm925_dma_inv_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -328,7 +328,7 @@ arm925_dma_clean_range:
blo 1b
#endif
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -350,7 +350,7 @@ ENTRY(arm925_dma_flush_range)
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -373,7 +373,7 @@ ENDPROC(arm925_dma_map_area)
* - dir - DMA direction
*/
ENTRY(arm925_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(arm925_dma_unmap_area)
.globl arm925_flush_kern_cache_louis
@@ -390,7 +390,7 @@ ENTRY(cpu_arm925_dcache_clean_area)
bhi 1b
#endif
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -419,7 +419,7 @@ ENTRY(cpu_arm925_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
#endif
- mov pc, lr
+ ret lr
/*
* cpu_arm925_set_pte_ext(ptep, pte, ext)
@@ -436,7 +436,7 @@ ENTRY(cpu_arm925_set_pte_ext)
#endif
mcr p15, 0, r0, c7, c10, 4 @ drain WB
#endif /* CONFIG_MMU */
- mov pc, lr
+ ret lr
.type __arm925_setup, #function
__arm925_setup:
@@ -469,7 +469,7 @@ __arm925_setup:
#ifdef CONFIG_CPU_CACHE_ROUND_ROBIN
orr r0, r0, #0x4000 @ .1.. .... .... ....
#endif
- mov pc, lr
+ ret lr
.size __arm925_setup, . - __arm925_setup
/*
diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S
index 0f098f4..252b250 100644
--- a/arch/arm/mm/proc-arm926.S
+++ b/arch/arm/mm/proc-arm926.S
@@ -55,7 +55,7 @@
* cpu_arm926_proc_init()
*/
ENTRY(cpu_arm926_proc_init)
- mov pc, lr
+ ret lr
/*
* cpu_arm926_proc_fin()
@@ -65,7 +65,7 @@ ENTRY(cpu_arm926_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_arm926_reset(loc)
@@ -89,7 +89,7 @@ ENTRY(cpu_arm926_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm926_reset)
.popsection
@@ -111,7 +111,7 @@ ENTRY(cpu_arm926_do_idle)
mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
mcr p15, 0, r1, c1, c0, 0 @ Restore ICache enable
msr cpsr_c, r3 @ Restore FIQ state
- mov pc, lr
+ ret lr
/*
* flush_icache_all()
@@ -121,7 +121,7 @@ ENTRY(cpu_arm926_do_idle)
ENTRY(arm926_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(arm926_flush_icache_all)
/*
@@ -151,7 +151,7 @@ __flush_whole_cache:
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -188,7 +188,7 @@ ENTRY(arm926_flush_user_cache_range)
blo 1b
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -222,7 +222,7 @@ ENTRY(arm926_coherent_user_range)
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -242,7 +242,7 @@ ENTRY(arm926_flush_kern_dcache_area)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -270,7 +270,7 @@ arm926_dma_inv_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -291,7 +291,7 @@ arm926_dma_clean_range:
blo 1b
#endif
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -313,7 +313,7 @@ ENTRY(arm926_dma_flush_range)
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -336,7 +336,7 @@ ENDPROC(arm926_dma_map_area)
* - dir - DMA direction
*/
ENTRY(arm926_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(arm926_dma_unmap_area)
.globl arm926_flush_kern_cache_louis
@@ -353,7 +353,7 @@ ENTRY(cpu_arm926_dcache_clean_area)
bhi 1b
#endif
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -380,7 +380,7 @@ ENTRY(cpu_arm926_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
#endif
- mov pc, lr
+ ret lr
/*
* cpu_arm926_set_pte_ext(ptep, pte, ext)
@@ -397,7 +397,7 @@ ENTRY(cpu_arm926_set_pte_ext)
#endif
mcr p15, 0, r0, c7, c10, 4 @ drain WB
#endif
- mov pc, lr
+ ret lr
/* Suspend/resume support: taken from arch/arm/plat-s3c24xx/sleep.S */
.globl cpu_arm926_suspend_size
@@ -448,7 +448,7 @@ __arm926_setup:
#ifdef CONFIG_CPU_CACHE_ROUND_ROBIN
orr r0, r0, #0x4000 @ .1.. .... .... ....
#endif
- mov pc, lr
+ ret lr
.size __arm926_setup, . - __arm926_setup
/*
diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S
index 1c39a70..e5212d4 100644
--- a/arch/arm/mm/proc-arm940.S
+++ b/arch/arm/mm/proc-arm940.S
@@ -31,7 +31,7 @@
*/
ENTRY(cpu_arm940_proc_init)
ENTRY(cpu_arm940_switch_mm)
- mov pc, lr
+ ret lr
/*
* cpu_arm940_proc_fin()
@@ -41,7 +41,7 @@ ENTRY(cpu_arm940_proc_fin)
bic r0, r0, #0x00001000 @ i-cache
bic r0, r0, #0x00000004 @ d-cache
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_arm940_reset(loc)
@@ -58,7 +58,7 @@ ENTRY(cpu_arm940_reset)
bic ip, ip, #0x00000005 @ .............c.p
bic ip, ip, #0x00001000 @ i-cache
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm940_reset)
.popsection
@@ -68,7 +68,7 @@ ENDPROC(cpu_arm940_reset)
.align 5
ENTRY(cpu_arm940_do_idle)
mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
- mov pc, lr
+ ret lr
/*
* flush_icache_all()
@@ -78,7 +78,7 @@ ENTRY(cpu_arm940_do_idle)
ENTRY(arm940_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(arm940_flush_icache_all)
/*
@@ -122,7 +122,7 @@ ENTRY(arm940_flush_user_cache_range)
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -170,7 +170,7 @@ ENTRY(arm940_flush_kern_dcache_area)
bcs 1b @ segments 7 to 0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -191,7 +191,7 @@ arm940_dma_inv_range:
subs r1, r1, #1 << 4
bcs 1b @ segments 7 to 0
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -215,7 +215,7 @@ ENTRY(cpu_arm940_dcache_clean_area)
bcs 1b @ segments 7 to 0
#endif
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -241,7 +241,7 @@ ENTRY(arm940_dma_flush_range)
subs r1, r1, #1 << 4
bcs 1b @ segments 7 to 0
mcr p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -264,7 +264,7 @@ ENDPROC(arm940_dma_map_area)
* - dir - DMA direction
*/
ENTRY(arm940_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(arm940_dma_unmap_area)
.globl arm940_flush_kern_cache_louis
@@ -337,7 +337,7 @@ __arm940_setup:
orr r0, r0, #0x00001000 @ I-cache
orr r0, r0, #0x00000005 @ MPU/D-cache
- mov pc, lr
+ ret lr
.size __arm940_setup, . - __arm940_setup
diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S
index 0289cd9..b3dd9b2 100644
--- a/arch/arm/mm/proc-arm946.S
+++ b/arch/arm/mm/proc-arm946.S
@@ -38,7 +38,7 @@
*/
ENTRY(cpu_arm946_proc_init)
ENTRY(cpu_arm946_switch_mm)
- mov pc, lr
+ ret lr
/*
* cpu_arm946_proc_fin()
@@ -48,7 +48,7 @@ ENTRY(cpu_arm946_proc_fin)
bic r0, r0, #0x00001000 @ i-cache
bic r0, r0, #0x00000004 @ d-cache
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_arm946_reset(loc)
@@ -65,7 +65,7 @@ ENTRY(cpu_arm946_reset)
bic ip, ip, #0x00000005 @ .............c.p
bic ip, ip, #0x00001000 @ i-cache
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm946_reset)
.popsection
@@ -75,7 +75,7 @@ ENDPROC(cpu_arm946_reset)
.align 5
ENTRY(cpu_arm946_do_idle)
mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
- mov pc, lr
+ ret lr
/*
* flush_icache_all()
@@ -85,7 +85,7 @@ ENTRY(cpu_arm946_do_idle)
ENTRY(arm946_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(arm946_flush_icache_all)
/*
@@ -117,7 +117,7 @@ __flush_whole_cache:
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c5, 0 @ flush I cache
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -156,7 +156,7 @@ ENTRY(arm946_flush_user_cache_range)
blo 1b
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -191,7 +191,7 @@ ENTRY(arm946_coherent_user_range)
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -212,7 +212,7 @@ ENTRY(arm946_flush_kern_dcache_area)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -239,7 +239,7 @@ arm946_dma_inv_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -260,7 +260,7 @@ arm946_dma_clean_range:
blo 1b
#endif
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -284,7 +284,7 @@ ENTRY(arm946_dma_flush_range)
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -307,7 +307,7 @@ ENDPROC(arm946_dma_map_area)
* - dir - DMA direction
*/
ENTRY(arm946_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(arm946_dma_unmap_area)
.globl arm946_flush_kern_cache_louis
@@ -324,7 +324,7 @@ ENTRY(cpu_arm946_dcache_clean_area)
bhi 1b
#endif
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
.type __arm946_setup, #function
__arm946_setup:
@@ -392,7 +392,7 @@ __arm946_setup:
#ifdef CONFIG_CPU_CACHE_ROUND_ROBIN
orr r0, r0, #0x00004000 @ .1.. .... .... ....
#endif
- mov pc, lr
+ ret lr
.size __arm946_setup, . - __arm946_setup
diff --git a/arch/arm/mm/proc-arm9tdmi.S b/arch/arm/mm/proc-arm9tdmi.S
index f51197b..8227322 100644
--- a/arch/arm/mm/proc-arm9tdmi.S
+++ b/arch/arm/mm/proc-arm9tdmi.S
@@ -32,13 +32,13 @@ ENTRY(cpu_arm9tdmi_proc_init)
ENTRY(cpu_arm9tdmi_do_idle)
ENTRY(cpu_arm9tdmi_dcache_clean_area)
ENTRY(cpu_arm9tdmi_switch_mm)
- mov pc, lr
+ ret lr
/*
* cpu_arm9tdmi_proc_fin()
*/
ENTRY(cpu_arm9tdmi_proc_fin)
- mov pc, lr
+ ret lr
/*
* Function: cpu_arm9tdmi_reset(loc)
@@ -47,13 +47,13 @@ ENTRY(cpu_arm9tdmi_proc_fin)
*/
.pushsection .idmap.text, "ax"
ENTRY(cpu_arm9tdmi_reset)
- mov pc, r0
+ ret r0
ENDPROC(cpu_arm9tdmi_reset)
.popsection
.type __arm9tdmi_setup, #function
__arm9tdmi_setup:
- mov pc, lr
+ ret lr
.size __arm9tdmi_setup, . - __arm9tdmi_setup
__INITDATA
diff --git a/arch/arm/mm/proc-fa526.S b/arch/arm/mm/proc-fa526.S
index 2dfc0f1..c494886 100644
--- a/arch/arm/mm/proc-fa526.S
+++ b/arch/arm/mm/proc-fa526.S
@@ -32,7 +32,7 @@
* cpu_fa526_proc_init()
*/
ENTRY(cpu_fa526_proc_init)
- mov pc, lr
+ ret lr
/*
* cpu_fa526_proc_fin()
@@ -44,7 +44,7 @@ ENTRY(cpu_fa526_proc_fin)
mcr p15, 0, r0, c1, c0, 0 @ disable caches
nop
nop
- mov pc, lr
+ ret lr
/*
* cpu_fa526_reset(loc)
@@ -72,7 +72,7 @@ ENTRY(cpu_fa526_reset)
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
nop
nop
- mov pc, r0
+ ret r0
ENDPROC(cpu_fa526_reset)
.popsection
@@ -81,7 +81,7 @@ ENDPROC(cpu_fa526_reset)
*/
.align 4
ENTRY(cpu_fa526_do_idle)
- mov pc, lr
+ ret lr
ENTRY(cpu_fa526_dcache_clean_area)
@@ -90,7 +90,7 @@ ENTRY(cpu_fa526_dcache_clean_area)
subs r1, r1, #CACHE_DLINESIZE
bhi 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -117,7 +117,7 @@ ENTRY(cpu_fa526_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
mcr p15, 0, ip, c8, c7, 0 @ invalidate UTLB
#endif
- mov pc, lr
+ ret lr
/*
* cpu_fa526_set_pte_ext(ptep, pte, ext)
@@ -133,7 +133,7 @@ ENTRY(cpu_fa526_set_pte_ext)
mov r0, #0
mcr p15, 0, r0, c7, c10, 4 @ drain WB
#endif
- mov pc, lr
+ ret lr
.type __fa526_setup, #function
__fa526_setup:
@@ -162,7 +162,7 @@ __fa526_setup:
bic r0, r0, r5
ldr r5, fa526_cr1_set
orr r0, r0, r5
- mov pc, lr
+ ret lr
.size __fa526_setup, . - __fa526_setup
/*
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index db79b62..03a1b75 100644
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -69,7 +69,7 @@ ENTRY(cpu_feroceon_proc_init)
movne r2, r2, lsr #2 @ turned into # of sets
sub r2, r2, #(1 << 5)
stmia r1, {r2, r3}
- mov pc, lr
+ ret lr
/*
* cpu_feroceon_proc_fin()
@@ -86,7 +86,7 @@ ENTRY(cpu_feroceon_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_feroceon_reset(loc)
@@ -110,7 +110,7 @@ ENTRY(cpu_feroceon_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_feroceon_reset)
.popsection
@@ -124,7 +124,7 @@ ENTRY(cpu_feroceon_do_idle)
mov r0, #0
mcr p15, 0, r0, c7, c10, 4 @ Drain write buffer
mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt
- mov pc, lr
+ ret lr
/*
* flush_icache_all()
@@ -134,7 +134,7 @@ ENTRY(cpu_feroceon_do_idle)
ENTRY(feroceon_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(feroceon_flush_icache_all)
/*
@@ -169,7 +169,7 @@ __flush_whole_cache:
mov ip, #0
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -198,7 +198,7 @@ ENTRY(feroceon_flush_user_cache_range)
tst r2, #VM_EXEC
mov ip, #0
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -233,7 +233,7 @@ ENTRY(feroceon_coherent_user_range)
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -254,7 +254,7 @@ ENTRY(feroceon_flush_kern_dcache_area)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
.align 5
ENTRY(feroceon_range_flush_kern_dcache_area)
@@ -268,7 +268,7 @@ ENTRY(feroceon_range_flush_kern_dcache_area)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -295,7 +295,7 @@ feroceon_dma_inv_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
.align 5
feroceon_range_dma_inv_range:
@@ -311,7 +311,7 @@ feroceon_range_dma_inv_range:
mcr p15, 5, r0, c15, c14, 0 @ D inv range start
mcr p15, 5, r1, c15, c14, 1 @ D inv range top
msr cpsr_c, r2 @ restore interrupts
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -331,7 +331,7 @@ feroceon_dma_clean_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
.align 5
feroceon_range_dma_clean_range:
@@ -344,7 +344,7 @@ feroceon_range_dma_clean_range:
mcr p15, 5, r1, c15, c13, 1 @ D clean range top
msr cpsr_c, r2 @ restore interrupts
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -362,7 +362,7 @@ ENTRY(feroceon_dma_flush_range)
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
.align 5
ENTRY(feroceon_range_dma_flush_range)
@@ -375,7 +375,7 @@ ENTRY(feroceon_range_dma_flush_range)
mcr p15, 5, r1, c15, c15, 1 @ D clean/inv range top
msr cpsr_c, r2 @ restore interrupts
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -412,7 +412,7 @@ ENDPROC(feroceon_range_dma_map_area)
* - dir - DMA direction
*/
ENTRY(feroceon_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(feroceon_dma_unmap_area)
.globl feroceon_flush_kern_cache_louis
@@ -461,7 +461,7 @@ ENTRY(cpu_feroceon_dcache_clean_area)
bhi 1b
#endif
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -490,9 +490,9 @@ ENTRY(cpu_feroceon_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
- mov pc, r2
+ ret r2
#else
- mov pc, lr
+ ret lr
#endif
/*
@@ -512,7 +512,7 @@ ENTRY(cpu_feroceon_set_pte_ext)
#endif
mcr p15, 0, r0, c7, c10, 4 @ drain WB
#endif
- mov pc, lr
+ ret lr
/* Suspend/resume support: taken from arch/arm/mm/proc-arm926.S */
.globl cpu_feroceon_suspend_size
@@ -554,7 +554,7 @@ __feroceon_setup:
mrc p15, 0, r0, c1, c0 @ get control register v4
bic r0, r0, r5
orr r0, r0, r6
- mov pc, lr
+ ret lr
.size __feroceon_setup, . - __feroceon_setup
/*
diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S
index 40acba5..53d3934 100644
--- a/arch/arm/mm/proc-mohawk.S
+++ b/arch/arm/mm/proc-mohawk.S
@@ -45,7 +45,7 @@
* cpu_mohawk_proc_init()
*/
ENTRY(cpu_mohawk_proc_init)
- mov pc, lr
+ ret lr
/*
* cpu_mohawk_proc_fin()
@@ -55,7 +55,7 @@ ENTRY(cpu_mohawk_proc_fin)
bic r0, r0, #0x1800 @ ...iz...........
bic r0, r0, #0x0006 @ .............ca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_mohawk_reset(loc)
@@ -79,7 +79,7 @@ ENTRY(cpu_mohawk_reset)
bic ip, ip, #0x0007 @ .............cam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_mohawk_reset)
.popsection
@@ -93,7 +93,7 @@ ENTRY(cpu_mohawk_do_idle)
mov r0, #0
mcr p15, 0, r0, c7, c10, 4 @ drain write buffer
mcr p15, 0, r0, c7, c0, 4 @ wait for interrupt
- mov pc, lr
+ ret lr
/*
* flush_icache_all()
@@ -103,7 +103,7 @@ ENTRY(cpu_mohawk_do_idle)
ENTRY(mohawk_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(mohawk_flush_icache_all)
/*
@@ -128,7 +128,7 @@ __flush_whole_cache:
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c5, 0 @ invalidate I cache
mcrne p15, 0, ip, c7, c10, 0 @ drain write buffer
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, flags)
@@ -158,7 +158,7 @@ ENTRY(mohawk_flush_user_cache_range)
blo 1b
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -194,7 +194,7 @@ ENTRY(mohawk_coherent_user_range)
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
mov r0, #0
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -214,7 +214,7 @@ ENTRY(mohawk_flush_kern_dcache_area)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -240,7 +240,7 @@ mohawk_dma_inv_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -259,7 +259,7 @@ mohawk_dma_clean_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -277,7 +277,7 @@ ENTRY(mohawk_dma_flush_range)
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -300,7 +300,7 @@ ENDPROC(mohawk_dma_map_area)
* - dir - DMA direction
*/
ENTRY(mohawk_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(mohawk_dma_unmap_area)
.globl mohawk_flush_kern_cache_louis
@@ -315,7 +315,7 @@ ENTRY(cpu_mohawk_dcache_clean_area)
subs r1, r1, #CACHE_DLINESIZE
bhi 1b
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
/*
* cpu_mohawk_switch_mm(pgd)
@@ -333,7 +333,7 @@ ENTRY(cpu_mohawk_switch_mm)
orr r0, r0, #0x18 @ cache the page table in L2
mcr p15, 0, r0, c2, c0, 0 @ load page table pointer
mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
- mov pc, lr
+ ret lr
/*
* cpu_mohawk_set_pte_ext(ptep, pte, ext)
@@ -346,7 +346,7 @@ ENTRY(cpu_mohawk_set_pte_ext)
mov r0, r0
mcr p15, 0, r0, c7, c10, 1 @ clean D entry
mcr p15, 0, r0, c7, c10, 4 @ drain WB
- mov pc, lr
+ ret lr
.globl cpu_mohawk_suspend_size
.equ cpu_mohawk_suspend_size, 4 * 6
@@ -400,7 +400,7 @@ __mohawk_setup:
mrc p15, 0, r0, c1, c0 @ get control register
bic r0, r0, r5
orr r0, r0, r6
- mov pc, lr
+ ret lr
.size __mohawk_setup, . - __mohawk_setup
diff --git a/arch/arm/mm/proc-sa110.S b/arch/arm/mm/proc-sa110.S
index c45319c..8008a04 100644
--- a/arch/arm/mm/proc-sa110.S
+++ b/arch/arm/mm/proc-sa110.S
@@ -38,7 +38,7 @@
ENTRY(cpu_sa110_proc_init)
mov r0, #0
mcr p15, 0, r0, c15, c1, 2 @ Enable clock switching
- mov pc, lr
+ ret lr
/*
* cpu_sa110_proc_fin()
@@ -50,7 +50,7 @@ ENTRY(cpu_sa110_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_sa110_reset(loc)
@@ -74,7 +74,7 @@ ENTRY(cpu_sa110_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_sa110_reset)
.popsection
@@ -103,7 +103,7 @@ ENTRY(cpu_sa110_do_idle)
mov r0, r0 @ safety
mov r0, r0 @ safety
mcr p15, 0, r0, c15, c1, 2 @ enable clock switching
- mov pc, lr
+ ret lr
/* ================================= CACHE ================================ */
@@ -121,7 +121,7 @@ ENTRY(cpu_sa110_dcache_clean_area)
add r0, r0, #DCACHELINESIZE
subs r1, r1, #DCACHELINESIZE
bhi 1b
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -141,7 +141,7 @@ ENTRY(cpu_sa110_switch_mm)
mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
ldr pc, [sp], #4
#else
- mov pc, lr
+ ret lr
#endif
/*
@@ -157,7 +157,7 @@ ENTRY(cpu_sa110_set_pte_ext)
mcr p15, 0, r0, c7, c10, 1 @ clean D entry
mcr p15, 0, r0, c7, c10, 4 @ drain WB
#endif
- mov pc, lr
+ ret lr
.type __sa110_setup, #function
__sa110_setup:
@@ -173,7 +173,7 @@ __sa110_setup:
mrc p15, 0, r0, c1, c0 @ get control register v4
bic r0, r0, r5
orr r0, r0, r6
- mov pc, lr
+ ret lr
.size __sa110_setup, . - __sa110_setup
/*
diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S
index 09d241a..89f97ac 100644
--- a/arch/arm/mm/proc-sa1100.S
+++ b/arch/arm/mm/proc-sa1100.S
@@ -43,7 +43,7 @@ ENTRY(cpu_sa1100_proc_init)
mov r0, #0
mcr p15, 0, r0, c15, c1, 2 @ Enable clock switching
mcr p15, 0, r0, c9, c0, 5 @ Allow read-buffer operations from userland
- mov pc, lr
+ ret lr
/*
* cpu_sa1100_proc_fin()
@@ -58,7 +58,7 @@ ENTRY(cpu_sa1100_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x000e @ ............wca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_sa1100_reset(loc)
@@ -82,7 +82,7 @@ ENTRY(cpu_sa1100_reset)
bic ip, ip, #0x000f @ ............wcam
bic ip, ip, #0x1100 @ ...i...s........
mcr p15, 0, ip, c1, c0, 0 @ ctrl register
- mov pc, r0
+ ret r0
ENDPROC(cpu_sa1100_reset)
.popsection
@@ -113,7 +113,7 @@ ENTRY(cpu_sa1100_do_idle)
mcr p15, 0, r0, c15, c8, 2 @ wait for interrupt
mov r0, r0 @ safety
mcr p15, 0, r0, c15, c1, 2 @ enable clock switching
- mov pc, lr
+ ret lr
/* ================================= CACHE ================================ */
@@ -131,7 +131,7 @@ ENTRY(cpu_sa1100_dcache_clean_area)
add r0, r0, #DCACHELINESIZE
subs r1, r1, #DCACHELINESIZE
bhi 1b
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -152,7 +152,7 @@ ENTRY(cpu_sa1100_switch_mm)
mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
ldr pc, [sp], #4
#else
- mov pc, lr
+ ret lr
#endif
/*
@@ -168,7 +168,7 @@ ENTRY(cpu_sa1100_set_pte_ext)
mcr p15, 0, r0, c7, c10, 1 @ clean D entry
mcr p15, 0, r0, c7, c10, 4 @ drain WB
#endif
- mov pc, lr
+ ret lr
.globl cpu_sa1100_suspend_size
.equ cpu_sa1100_suspend_size, 4 * 3
@@ -211,7 +211,7 @@ __sa1100_setup:
mrc p15, 0, r0, c1, c0 @ get control register v4
bic r0, r0, r5
orr r0, r0, r6
- mov pc, lr
+ ret lr
.size __sa1100_setup, . - __sa1100_setup
/*
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index 32b3558..d0390f4 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -36,14 +36,14 @@
#define PMD_FLAGS_SMP PMD_SECT_WBWA|PMD_SECT_S
ENTRY(cpu_v6_proc_init)
- mov pc, lr
+ ret lr
ENTRY(cpu_v6_proc_fin)
mrc p15, 0, r0, c1, c0, 0 @ ctrl register
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x0006 @ .............ca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_v6_reset(loc)
@@ -62,7 +62,7 @@ ENTRY(cpu_v6_reset)
mcr p15, 0, r1, c1, c0, 0 @ disable MMU
mov r1, #0
mcr p15, 0, r1, c7, c5, 4 @ ISB
- mov pc, r0
+ ret r0
ENDPROC(cpu_v6_reset)
.popsection
@@ -77,14 +77,14 @@ ENTRY(cpu_v6_do_idle)
mov r1, #0
mcr p15, 0, r1, c7, c10, 4 @ DWB - WFI may enter a low-power mode
mcr p15, 0, r1, c7, c0, 4 @ wait for interrupt
- mov pc, lr
+ ret lr
ENTRY(cpu_v6_dcache_clean_area)
1: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
add r0, r0, #D_CACHE_LINE_SIZE
subs r1, r1, #D_CACHE_LINE_SIZE
bhi 1b
- mov pc, lr
+ ret lr
/*
* cpu_v6_switch_mm(pgd_phys, tsk)
@@ -113,7 +113,7 @@ ENTRY(cpu_v6_switch_mm)
#endif
mcr p15, 0, r1, c13, c0, 1 @ set context ID
#endif
- mov pc, lr
+ ret lr
/*
* cpu_v6_set_pte_ext(ptep, pte, ext)
@@ -131,7 +131,7 @@ ENTRY(cpu_v6_set_pte_ext)
#ifdef CONFIG_MMU
armv6_set_pte_ext cpu_v6
#endif
- mov pc, lr
+ ret lr
/* Suspend/resume support: taken from arch/arm/mach-s3c64xx/sleep.S */
.globl cpu_v6_suspend_size
@@ -241,7 +241,7 @@ __v6_setup:
mcreq p15, 0, r5, c1, c0, 1 @ write aux control reg
orreq r0, r0, #(1 << 21) @ low interrupt latency configuration
#endif
- mov pc, lr @ return to head.S:__ret
+ ret lr @ return to head.S:__ret
/*
* V X F I D LR
diff --git a/arch/arm/mm/proc-v7-2level.S b/arch/arm/mm/proc-v7-2level.S
index 1f52915..ed448d8 100644
--- a/arch/arm/mm/proc-v7-2level.S
+++ b/arch/arm/mm/proc-v7-2level.S
@@ -59,7 +59,7 @@ ENTRY(cpu_v7_switch_mm)
mcr p15, 0, r0, c2, c0, 0 @ set TTB 0
isb
#endif
- mov pc, lr
+ bx lr
ENDPROC(cpu_v7_switch_mm)
/*
@@ -106,7 +106,7 @@ ENTRY(cpu_v7_set_pte_ext)
ALT_SMP(W(nop))
ALT_UP (mcr p15, 0, r0, c7, c10, 1) @ flush_pte
#endif
- mov pc, lr
+ bx lr
ENDPROC(cpu_v7_set_pte_ext)
/*
diff --git a/arch/arm/mm/proc-v7-3level.S b/arch/arm/mm/proc-v7-3level.S
index 22e3ad6..e4c8acf 100644
--- a/arch/arm/mm/proc-v7-3level.S
+++ b/arch/arm/mm/proc-v7-3level.S
@@ -19,6 +19,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <asm/assembler.h>
#define TTB_IRGN_NC (0 << 8)
#define TTB_IRGN_WBWA (1 << 8)
@@ -61,7 +62,7 @@ ENTRY(cpu_v7_switch_mm)
mcrr p15, 0, rpgdl, rpgdh, c2 @ set TTB 0
isb
#endif
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7_switch_mm)
#ifdef __ARMEB__
@@ -86,13 +87,18 @@ ENTRY(cpu_v7_set_pte_ext)
tst rh, #1 << (57 - 32) @ L_PTE_NONE
bicne rl, #L_PTE_VALID
bne 1f
- tst rh, #1 << (55 - 32) @ L_PTE_DIRTY
- orreq rl, #L_PTE_RDONLY
+
+ eor ip, rh, #1 << (55 - 32) @ toggle L_PTE_DIRTY in temp reg to
+ @ test for !L_PTE_DIRTY || L_PTE_RDONLY
+ tst ip, #1 << (55 - 32) | 1 << (58 - 32)
+ orrne rl, #PTE_AP2
+ biceq rl, #PTE_AP2
+
1: strd r2, r3, [r0]
ALT_SMP(W(nop))
ALT_UP (mcr p15, 0, r0, c7, c10, 1) @ flush_pte
#endif
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7_set_pte_ext)
/*
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 3db2c2f..b5d67db 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -26,7 +26,7 @@
#endif
ENTRY(cpu_v7_proc_init)
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7_proc_init)
ENTRY(cpu_v7_proc_fin)
@@ -34,7 +34,7 @@ ENTRY(cpu_v7_proc_fin)
bic r0, r0, #0x1000 @ ...i............
bic r0, r0, #0x0006 @ .............ca.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7_proc_fin)
/*
@@ -71,20 +71,20 @@ ENDPROC(cpu_v7_reset)
ENTRY(cpu_v7_do_idle)
dsb @ WFI may enter a low-power mode
wfi
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7_do_idle)
ENTRY(cpu_v7_dcache_clean_area)
ALT_SMP(W(nop)) @ MP extensions imply L1 PTW
ALT_UP_B(1f)
- mov pc, lr
+ ret lr
1: dcache_line_size r2, r3
2: mcr p15, 0, r0, c7, c10, 1 @ clean D entry
add r0, r0, r2
subs r1, r1, r2
bhi 2b
dsb ishst
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7_dcache_clean_area)
string cpu_v7_name, "ARMv7 Processor"
@@ -152,6 +152,40 @@ ENTRY(cpu_v7_do_resume)
ENDPROC(cpu_v7_do_resume)
#endif
+/*
+ * Cortex-A9 processor functions
+ */
+ globl_equ cpu_ca9mp_proc_init, cpu_v7_proc_init
+ globl_equ cpu_ca9mp_proc_fin, cpu_v7_proc_fin
+ globl_equ cpu_ca9mp_reset, cpu_v7_reset
+ globl_equ cpu_ca9mp_do_idle, cpu_v7_do_idle
+ globl_equ cpu_ca9mp_dcache_clean_area, cpu_v7_dcache_clean_area
+ globl_equ cpu_ca9mp_switch_mm, cpu_v7_switch_mm
+ globl_equ cpu_ca9mp_set_pte_ext, cpu_v7_set_pte_ext
+.globl cpu_ca9mp_suspend_size
+.equ cpu_ca9mp_suspend_size, cpu_v7_suspend_size + 4 * 2
+#ifdef CONFIG_ARM_CPU_SUSPEND
+ENTRY(cpu_ca9mp_do_suspend)
+ stmfd sp!, {r4 - r5}
+ mrc p15, 0, r4, c15, c0, 1 @ Diagnostic register
+ mrc p15, 0, r5, c15, c0, 0 @ Power register
+ stmia r0!, {r4 - r5}
+ ldmfd sp!, {r4 - r5}
+ b cpu_v7_do_suspend
+ENDPROC(cpu_ca9mp_do_suspend)
+
+ENTRY(cpu_ca9mp_do_resume)
+ ldmia r0!, {r4 - r5}
+ mrc p15, 0, r10, c15, c0, 1 @ Read Diagnostic register
+ teq r4, r10 @ Already restored?
+ mcrne p15, 0, r4, c15, c0, 1 @ No, so restore it
+ mrc p15, 0, r10, c15, c0, 0 @ Read Power register
+ teq r5, r10 @ Already restored?
+ mcrne p15, 0, r5, c15, c0, 0 @ No, so restore it
+ b cpu_v7_do_resume
+ENDPROC(cpu_ca9mp_do_resume)
+#endif
+
#ifdef CONFIG_CPU_PJ4B
globl_equ cpu_pj4b_switch_mm, cpu_v7_switch_mm
globl_equ cpu_pj4b_set_pte_ext, cpu_v7_set_pte_ext
@@ -163,7 +197,7 @@ ENTRY(cpu_pj4b_do_idle)
dsb @ WFI may enter a low-power mode
wfi
dsb @barrier
- mov pc, lr
+ ret lr
ENDPROC(cpu_pj4b_do_idle)
#else
globl_equ cpu_pj4b_do_idle, cpu_v7_do_idle
@@ -184,16 +218,16 @@ ENDPROC(cpu_pj4b_do_suspend)
ENTRY(cpu_pj4b_do_resume)
ldmia r0!, {r6 - r10}
- mcr p15, 1, r6, c15, c1, 0 @ save CP15 - extra features
- mcr p15, 1, r7, c15, c2, 0 @ save CP15 - Aux Func Modes Ctrl 0
- mcr p15, 1, r8, c15, c1, 2 @ save CP15 - Aux Debug Modes Ctrl 2
- mcr p15, 1, r9, c15, c1, 1 @ save CP15 - Aux Debug Modes Ctrl 1
- mcr p15, 0, r10, c9, c14, 0 @ save CP15 - PMC
+ mcr p15, 1, r6, c15, c1, 0 @ restore CP15 - extra features
+ mcr p15, 1, r7, c15, c2, 0 @ restore CP15 - Aux Func Modes Ctrl 0
+ mcr p15, 1, r8, c15, c1, 2 @ restore CP15 - Aux Debug Modes Ctrl 2
+ mcr p15, 1, r9, c15, c1, 1 @ restore CP15 - Aux Debug Modes Ctrl 1
+ mcr p15, 0, r10, c9, c14, 0 @ restore CP15 - PMC
b cpu_v7_do_resume
ENDPROC(cpu_pj4b_do_resume)
#endif
.globl cpu_pj4b_suspend_size
-.equ cpu_pj4b_suspend_size, 4 * 14
+.equ cpu_pj4b_suspend_size, cpu_v7_suspend_size + 4 * 5
#endif
@@ -216,6 +250,7 @@ __v7_cr7mp_setup:
__v7_ca7mp_setup:
__v7_ca12mp_setup:
__v7_ca15mp_setup:
+__v7_b15mp_setup:
__v7_ca17mp_setup:
mov r10, #0
1:
@@ -407,7 +442,7 @@ __v7_setup:
bic r0, r0, r5 @ clear bits them
orr r0, r0, r6 @ set them
THUMB( orr r0, r0, #1 << 30 ) @ Thumb exceptions
- mov pc, lr @ return to head.S:__ret
+ ret lr @ return to head.S:__ret
ENDPROC(__v7_setup)
.align 2
@@ -418,6 +453,7 @@ __v7_setup_stack:
@ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
define_processor_functions v7, dabort=v7_early_abort, pabort=v7_pabort, suspend=1
+ define_processor_functions ca9mp, dabort=v7_early_abort, pabort=v7_pabort, suspend=1
#ifdef CONFIG_CPU_PJ4B
define_processor_functions pj4b, dabort=v7_early_abort, pabort=v7_pabort, suspend=1
#endif
@@ -470,7 +506,7 @@ __v7_ca5mp_proc_info:
__v7_ca9mp_proc_info:
.long 0x410fc090
.long 0xff0ffff0
- __v7_proc __v7_ca9mp_setup
+ __v7_proc __v7_ca9mp_setup, proc_fns = ca9mp_processor_functions
.size __v7_ca9mp_proc_info, . - __v7_ca9mp_proc_info
#endif /* CONFIG_ARM_LPAE */
@@ -528,6 +564,16 @@ __v7_ca15mp_proc_info:
.size __v7_ca15mp_proc_info, . - __v7_ca15mp_proc_info
/*
+ * Broadcom Corporation Brahma-B15 processor.
+ */
+ .type __v7_b15mp_proc_info, #object
+__v7_b15mp_proc_info:
+ .long 0x420f00f0
+ .long 0xff0ffff0
+ __v7_proc __v7_b15mp_setup, hwcaps = HWCAP_IDIV
+ .size __v7_b15mp_proc_info, . - __v7_b15mp_proc_info
+
+ /*
* ARM Ltd. Cortex A17 processor.
*/
.type __v7_ca17mp_proc_info, #object
diff --git a/arch/arm/mm/proc-v7m.S b/arch/arm/mm/proc-v7m.S
index 1ca37c7..d1e68b5 100644
--- a/arch/arm/mm/proc-v7m.S
+++ b/arch/arm/mm/proc-v7m.S
@@ -16,11 +16,11 @@
#include "proc-macros.S"
ENTRY(cpu_v7m_proc_init)
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7m_proc_init)
ENTRY(cpu_v7m_proc_fin)
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7m_proc_fin)
/*
@@ -34,7 +34,7 @@ ENDPROC(cpu_v7m_proc_fin)
*/
.align 5
ENTRY(cpu_v7m_reset)
- mov pc, r0
+ ret r0
ENDPROC(cpu_v7m_reset)
/*
@@ -46,18 +46,18 @@ ENDPROC(cpu_v7m_reset)
*/
ENTRY(cpu_v7m_do_idle)
wfi
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7m_do_idle)
ENTRY(cpu_v7m_dcache_clean_area)
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7m_dcache_clean_area)
/*
* There is no MMU, so here is nothing to do.
*/
ENTRY(cpu_v7m_switch_mm)
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7m_switch_mm)
.globl cpu_v7m_suspend_size
@@ -65,11 +65,11 @@ ENDPROC(cpu_v7m_switch_mm)
#ifdef CONFIG_ARM_CPU_SUSPEND
ENTRY(cpu_v7m_do_suspend)
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7m_do_suspend)
ENTRY(cpu_v7m_do_resume)
- mov pc, lr
+ ret lr
ENDPROC(cpu_v7m_do_resume)
#endif
@@ -120,7 +120,7 @@ __v7m_setup:
ldr r12, [r0, V7M_SCB_CCR] @ system control register
orr r12, #V7M_SCB_CCR_STKALIGN
str r12, [r0, V7M_SCB_CCR]
- mov pc, lr
+ ret lr
ENDPROC(__v7m_setup)
.align 2
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index dc16458..f8acdfe 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -83,7 +83,7 @@
* Nothing too exciting at the moment
*/
ENTRY(cpu_xsc3_proc_init)
- mov pc, lr
+ ret lr
/*
* cpu_xsc3_proc_fin()
@@ -93,7 +93,7 @@ ENTRY(cpu_xsc3_proc_fin)
bic r0, r0, #0x1800 @ ...IZ...........
bic r0, r0, #0x0006 @ .............CA.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_xsc3_reset(loc)
@@ -119,7 +119,7 @@ ENTRY(cpu_xsc3_reset)
@ CAUTION: MMU turned off from this point. We count on the pipeline
@ already containing those two last instructions to survive.
mcr p15, 0, ip, c8, c7, 0 @ invalidate I and D TLBs
- mov pc, r0
+ ret r0
ENDPROC(cpu_xsc3_reset)
.popsection
@@ -138,7 +138,7 @@ ENDPROC(cpu_xsc3_reset)
ENTRY(cpu_xsc3_do_idle)
mov r0, #1
mcr p14, 0, r0, c7, c0, 0 @ go to idle
- mov pc, lr
+ ret lr
/* ================================= CACHE ================================ */
@@ -150,7 +150,7 @@ ENTRY(cpu_xsc3_do_idle)
ENTRY(xsc3_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(xsc3_flush_icache_all)
/*
@@ -176,7 +176,7 @@ __flush_whole_cache:
mcrne p15, 0, ip, c7, c5, 0 @ invalidate L1 I cache and BTB
mcrne p15, 0, ip, c7, c10, 4 @ data write barrier
mcrne p15, 0, ip, c7, c5, 4 @ prefetch flush
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, vm_flags)
@@ -205,7 +205,7 @@ ENTRY(xsc3_flush_user_cache_range)
mcrne p15, 0, ip, c7, c5, 6 @ invalidate BTB
mcrne p15, 0, ip, c7, c10, 4 @ data write barrier
mcrne p15, 0, ip, c7, c5, 4 @ prefetch flush
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -232,7 +232,7 @@ ENTRY(xsc3_coherent_user_range)
mcr p15, 0, r0, c7, c5, 0 @ invalidate L1 I cache and BTB
mcr p15, 0, r0, c7, c10, 4 @ data write barrier
mcr p15, 0, r0, c7, c5, 4 @ prefetch flush
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -253,7 +253,7 @@ ENTRY(xsc3_flush_kern_dcache_area)
mcr p15, 0, r0, c7, c5, 0 @ invalidate L1 I cache and BTB
mcr p15, 0, r0, c7, c10, 4 @ data write barrier
mcr p15, 0, r0, c7, c5, 4 @ prefetch flush
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -277,7 +277,7 @@ xsc3_dma_inv_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ data write barrier
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -294,7 +294,7 @@ xsc3_dma_clean_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ data write barrier
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -311,7 +311,7 @@ ENTRY(xsc3_dma_flush_range)
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ data write barrier
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -334,7 +334,7 @@ ENDPROC(xsc3_dma_map_area)
* - dir - DMA direction
*/
ENTRY(xsc3_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(xsc3_dma_unmap_area)
.globl xsc3_flush_kern_cache_louis
@@ -348,7 +348,7 @@ ENTRY(cpu_xsc3_dcache_clean_area)
add r0, r0, #CACHELINESIZE
subs r1, r1, #CACHELINESIZE
bhi 1b
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -406,7 +406,7 @@ ENTRY(cpu_xsc3_set_pte_ext)
orr r2, r2, ip
xscale_set_pte_ext_epilogue
- mov pc, lr
+ ret lr
.ltorg
.align
@@ -478,7 +478,7 @@ __xsc3_setup:
bic r0, r0, r5 @ ..V. ..R. .... ..A.
orr r0, r0, r6 @ ..VI Z..S .... .C.M (mmu)
@ ...I Z..S .... .... (uc)
- mov pc, lr
+ ret lr
.size __xsc3_setup, . - __xsc3_setup
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index d19b1cf..23259f10 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -118,7 +118,7 @@ ENTRY(cpu_xscale_proc_init)
mrc p15, 0, r1, c1, c0, 1
bic r1, r1, #1
mcr p15, 0, r1, c1, c0, 1
- mov pc, lr
+ ret lr
/*
* cpu_xscale_proc_fin()
@@ -128,7 +128,7 @@ ENTRY(cpu_xscale_proc_fin)
bic r0, r0, #0x1800 @ ...IZ...........
bic r0, r0, #0x0006 @ .............CA.
mcr p15, 0, r0, c1, c0, 0 @ disable caches
- mov pc, lr
+ ret lr
/*
* cpu_xscale_reset(loc)
@@ -160,7 +160,7 @@ ENTRY(cpu_xscale_reset)
@ CAUTION: MMU turned off from this point. We count on the pipeline
@ already containing those two last instructions to survive.
mcr p15, 0, ip, c8, c7, 0 @ invalidate I & D TLBs
- mov pc, r0
+ ret r0
ENDPROC(cpu_xscale_reset)
.popsection
@@ -179,7 +179,7 @@ ENDPROC(cpu_xscale_reset)
ENTRY(cpu_xscale_do_idle)
mov r0, #1
mcr p14, 0, r0, c7, c0, 0 @ Go to IDLE
- mov pc, lr
+ ret lr
/* ================================= CACHE ================================ */
@@ -191,7 +191,7 @@ ENTRY(cpu_xscale_do_idle)
ENTRY(xscale_flush_icache_all)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ invalidate I cache
- mov pc, lr
+ ret lr
ENDPROC(xscale_flush_icache_all)
/*
@@ -216,7 +216,7 @@ __flush_whole_cache:
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c5, 0 @ Invalidate I cache & BTB
mcrne p15, 0, ip, c7, c10, 4 @ Drain Write (& Fill) Buffer
- mov pc, lr
+ ret lr
/*
* flush_user_cache_range(start, end, vm_flags)
@@ -245,7 +245,7 @@ ENTRY(xscale_flush_user_cache_range)
tst r2, #VM_EXEC
mcrne p15, 0, ip, c7, c5, 6 @ Invalidate BTB
mcrne p15, 0, ip, c7, c10, 4 @ Drain Write (& Fill) Buffer
- mov pc, lr
+ ret lr
/*
* coherent_kern_range(start, end)
@@ -269,7 +269,7 @@ ENTRY(xscale_coherent_kern_range)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ Invalidate I cache & BTB
mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer
- mov pc, lr
+ ret lr
/*
* coherent_user_range(start, end)
@@ -291,7 +291,7 @@ ENTRY(xscale_coherent_user_range)
mov r0, #0
mcr p15, 0, r0, c7, c5, 6 @ Invalidate BTB
mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer
- mov pc, lr
+ ret lr
/*
* flush_kern_dcache_area(void *addr, size_t size)
@@ -312,7 +312,7 @@ ENTRY(xscale_flush_kern_dcache_area)
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ Invalidate I cache & BTB
mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer
- mov pc, lr
+ ret lr
/*
* dma_inv_range(start, end)
@@ -336,7 +336,7 @@ xscale_dma_inv_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer
- mov pc, lr
+ ret lr
/*
* dma_clean_range(start, end)
@@ -353,7 +353,7 @@ xscale_dma_clean_range:
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer
- mov pc, lr
+ ret lr
/*
* dma_flush_range(start, end)
@@ -371,7 +371,7 @@ ENTRY(xscale_dma_flush_range)
cmp r0, r1
blo 1b
mcr p15, 0, r0, c7, c10, 4 @ Drain Write (& Fill) Buffer
- mov pc, lr
+ ret lr
/*
* dma_map_area(start, size, dir)
@@ -407,7 +407,7 @@ ENDPROC(xscale_80200_A0_A1_dma_map_area)
* - dir - DMA direction
*/
ENTRY(xscale_dma_unmap_area)
- mov pc, lr
+ ret lr
ENDPROC(xscale_dma_unmap_area)
.globl xscale_flush_kern_cache_louis
@@ -458,7 +458,7 @@ ENTRY(cpu_xscale_dcache_clean_area)
add r0, r0, #CACHELINESIZE
subs r1, r1, #CACHELINESIZE
bhi 1b
- mov pc, lr
+ ret lr
/* =============================== PageTable ============================== */
@@ -521,7 +521,7 @@ ENTRY(cpu_xscale_set_pte_ext)
orr r2, r2, ip
xscale_set_pte_ext_epilogue
- mov pc, lr
+ ret lr
.ltorg
.align
@@ -572,7 +572,7 @@ __xscale_setup:
mrc p15, 0, r0, c1, c0, 0 @ get control register
bic r0, r0, r5
orr r0, r0, r6
- mov pc, lr
+ ret lr
.size __xscale_setup, . - __xscale_setup
/*
diff --git a/arch/arm/mm/tlb-fa.S b/arch/arm/mm/tlb-fa.S
index d3ddcf9..d2d9ecb 100644
--- a/arch/arm/mm/tlb-fa.S
+++ b/arch/arm/mm/tlb-fa.S
@@ -18,6 +18,7 @@
*/
#include <linux/linkage.h>
#include <linux/init.h>
+#include <asm/assembler.h>
#include <asm/asm-offsets.h>
#include <asm/tlbflush.h>
#include "proc-macros.S"
@@ -37,7 +38,7 @@ ENTRY(fa_flush_user_tlb_range)
vma_vm_mm ip, r2
act_mm r3 @ get current->active_mm
eors r3, ip, r3 @ == mm ?
- movne pc, lr @ no, we dont do anything
+ retne lr @ no, we dont do anything
mov r3, #0
mcr p15, 0, r3, c7, c10, 4 @ drain WB
bic r0, r0, #0x0ff
@@ -47,7 +48,7 @@ ENTRY(fa_flush_user_tlb_range)
cmp r0, r1
blo 1b
mcr p15, 0, r3, c7, c10, 4 @ data write barrier
- mov pc, lr
+ ret lr
ENTRY(fa_flush_kern_tlb_range)
@@ -61,7 +62,7 @@ ENTRY(fa_flush_kern_tlb_range)
blo 1b
mcr p15, 0, r3, c7, c10, 4 @ data write barrier
mcr p15, 0, r3, c7, c5, 4 @ prefetch flush (isb)
- mov pc, lr
+ ret lr
__INITDATA
diff --git a/arch/arm/mm/tlb-v4.S b/arch/arm/mm/tlb-v4.S
index 17a025a..a2b5dca 100644
--- a/arch/arm/mm/tlb-v4.S
+++ b/arch/arm/mm/tlb-v4.S
@@ -14,6 +14,7 @@
*/
#include <linux/linkage.h>
#include <linux/init.h>
+#include <asm/assembler.h>
#include <asm/asm-offsets.h>
#include <asm/tlbflush.h>
#include "proc-macros.S"
@@ -33,7 +34,7 @@ ENTRY(v4_flush_user_tlb_range)
vma_vm_mm ip, r2
act_mm r3 @ get current->active_mm
eors r3, ip, r3 @ == mm ?
- movne pc, lr @ no, we dont do anything
+ retne lr @ no, we dont do anything
.v4_flush_kern_tlb_range:
bic r0, r0, #0x0ff
bic r0, r0, #0xf00
@@ -41,7 +42,7 @@ ENTRY(v4_flush_user_tlb_range)
add r0, r0, #PAGE_SZ
cmp r0, r1
blo 1b
- mov pc, lr
+ ret lr
/*
* v4_flush_kern_tlb_range(start, end)
diff --git a/arch/arm/mm/tlb-v4wb.S b/arch/arm/mm/tlb-v4wb.S
index c04598f..5a093b4 100644
--- a/arch/arm/mm/tlb-v4wb.S
+++ b/arch/arm/mm/tlb-v4wb.S
@@ -14,6 +14,7 @@
*/
#include <linux/linkage.h>
#include <linux/init.h>
+#include <asm/assembler.h>
#include <asm/asm-offsets.h>
#include <asm/tlbflush.h>
#include "proc-macros.S"
@@ -33,7 +34,7 @@ ENTRY(v4wb_flush_user_tlb_range)
vma_vm_mm ip, r2
act_mm r3 @ get current->active_mm
eors r3, ip, r3 @ == mm ?
- movne pc, lr @ no, we dont do anything
+ retne lr @ no, we dont do anything
vma_vm_flags r2, r2
mcr p15, 0, r3, c7, c10, 4 @ drain WB
tst r2, #VM_EXEC
@@ -44,7 +45,7 @@ ENTRY(v4wb_flush_user_tlb_range)
add r0, r0, #PAGE_SZ
cmp r0, r1
blo 1b
- mov pc, lr
+ ret lr
/*
* v4_flush_kern_tlb_range(start, end)
@@ -65,7 +66,7 @@ ENTRY(v4wb_flush_kern_tlb_range)
add r0, r0, #PAGE_SZ
cmp r0, r1
blo 1b
- mov pc, lr
+ ret lr
__INITDATA
diff --git a/arch/arm/mm/tlb-v4wbi.S b/arch/arm/mm/tlb-v4wbi.S
index 1f6062b..0588615 100644
--- a/arch/arm/mm/tlb-v4wbi.S
+++ b/arch/arm/mm/tlb-v4wbi.S
@@ -14,6 +14,7 @@
*/
#include <linux/linkage.h>
#include <linux/init.h>
+#include <asm/assembler.h>
#include <asm/asm-offsets.h>
#include <asm/tlbflush.h>
#include "proc-macros.S"
@@ -32,7 +33,7 @@ ENTRY(v4wbi_flush_user_tlb_range)
vma_vm_mm ip, r2
act_mm r3 @ get current->active_mm
eors r3, ip, r3 @ == mm ?
- movne pc, lr @ no, we dont do anything
+ retne lr @ no, we dont do anything
mov r3, #0
mcr p15, 0, r3, c7, c10, 4 @ drain WB
vma_vm_flags r2, r2
@@ -44,7 +45,7 @@ ENTRY(v4wbi_flush_user_tlb_range)
add r0, r0, #PAGE_SZ
cmp r0, r1
blo 1b
- mov pc, lr
+ ret lr
ENTRY(v4wbi_flush_kern_tlb_range)
mov r3, #0
@@ -56,7 +57,7 @@ ENTRY(v4wbi_flush_kern_tlb_range)
add r0, r0, #PAGE_SZ
cmp r0, r1
blo 1b
- mov pc, lr
+ ret lr
__INITDATA
diff --git a/arch/arm/mm/tlb-v6.S b/arch/arm/mm/tlb-v6.S
index eca07f5..6f689be 100644
--- a/arch/arm/mm/tlb-v6.S
+++ b/arch/arm/mm/tlb-v6.S
@@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/linkage.h>
#include <asm/asm-offsets.h>
+#include <asm/assembler.h>
#include <asm/page.h>
#include <asm/tlbflush.h>
#include "proc-macros.S"
@@ -55,7 +56,7 @@ ENTRY(v6wbi_flush_user_tlb_range)
cmp r0, r1
blo 1b
mcr p15, 0, ip, c7, c10, 4 @ data synchronization barrier
- mov pc, lr
+ ret lr
/*
* v6wbi_flush_kern_tlb_range(start,end)
@@ -84,7 +85,7 @@ ENTRY(v6wbi_flush_kern_tlb_range)
blo 1b
mcr p15, 0, r2, c7, c10, 4 @ data synchronization barrier
mcr p15, 0, r2, c7, c5, 4 @ prefetch flush (isb)
- mov pc, lr
+ ret lr
__INIT
diff --git a/arch/arm/mm/tlb-v7.S b/arch/arm/mm/tlb-v7.S
index 3553087..e5101a3 100644
--- a/arch/arm/mm/tlb-v7.S
+++ b/arch/arm/mm/tlb-v7.S
@@ -57,7 +57,7 @@ ENTRY(v7wbi_flush_user_tlb_range)
cmp r0, r1
blo 1b
dsb ish
- mov pc, lr
+ ret lr
ENDPROC(v7wbi_flush_user_tlb_range)
/*
@@ -86,7 +86,7 @@ ENTRY(v7wbi_flush_kern_tlb_range)
blo 1b
dsb ish
isb
- mov pc, lr
+ ret lr
ENDPROC(v7wbi_flush_kern_tlb_range)
__INIT
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