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authorRussell King <rmk+kernel@arm.linux.org.uk>2012-09-26 22:42:18 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2012-09-26 22:42:18 +0100
commite3ef0dc60392c0d23ea74d4a7df851089e00fd87 (patch)
tree6edf9b7f3c93ab9caa4013fa7716649e1db69f5b /arch/arm
parent6f0f9b6b3fcfe5e156f20d4f804f0d505c750b3c (diff)
parent6323fa2256baa73d6a960ee57ec086b66aeecd0b (diff)
downloadop-kernel-dev-e3ef0dc60392c0d23ea74d4a7df851089e00fd87.zip
op-kernel-dev-e3ef0dc60392c0d23ea74d4a7df851089e00fd87.tar.gz
Merge branch 'cache-louis' of git://linux-arm.org/linux-2.6-lp into devel-stable
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/include/asm/cacheflush.h15
-rw-r--r--arch/arm/include/asm/glue-cache.h1
-rw-r--r--arch/arm/kernel/smp.c5
-rw-r--r--arch/arm/kernel/suspend.c17
-rw-r--r--arch/arm/mm/cache-fa.S3
-rw-r--r--arch/arm/mm/cache-v3.S3
-rw-r--r--arch/arm/mm/cache-v4.S3
-rw-r--r--arch/arm/mm/cache-v4wb.S3
-rw-r--r--arch/arm/mm/cache-v4wt.S3
-rw-r--r--arch/arm/mm/cache-v6.S3
-rw-r--r--arch/arm/mm/cache-v7.S48
-rw-r--r--arch/arm/mm/proc-arm1020.S3
-rw-r--r--arch/arm/mm/proc-arm1020e.S3
-rw-r--r--arch/arm/mm/proc-arm1022.S3
-rw-r--r--arch/arm/mm/proc-arm1026.S3
-rw-r--r--arch/arm/mm/proc-arm920.S3
-rw-r--r--arch/arm/mm/proc-arm922.S3
-rw-r--r--arch/arm/mm/proc-arm925.S3
-rw-r--r--arch/arm/mm/proc-arm926.S3
-rw-r--r--arch/arm/mm/proc-arm940.S3
-rw-r--r--arch/arm/mm/proc-arm946.S3
-rw-r--r--arch/arm/mm/proc-feroceon.S3
-rw-r--r--arch/arm/mm/proc-macros.S1
-rw-r--r--arch/arm/mm/proc-mohawk.S3
-rw-r--r--arch/arm/mm/proc-v7.S2
-rw-r--r--arch/arm/mm/proc-xsc3.S3
-rw-r--r--arch/arm/mm/proc-xscale.S3
27 files changed, 140 insertions, 9 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index e4448e1..e1489c5 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -49,6 +49,13 @@
*
* Unconditionally clean and invalidate the entire cache.
*
+ * flush_kern_louis()
+ *
+ * Flush data cache levels up to the level of unification
+ * inner shareable and invalidate the I-cache.
+ * Only needed from v7 onwards, falls back to flush_cache_all()
+ * for all other processor versions.
+ *
* flush_user_all()
*
* Clean and invalidate all user space cache entries
@@ -97,6 +104,7 @@
struct cpu_cache_fns {
void (*flush_icache_all)(void);
void (*flush_kern_all)(void);
+ void (*flush_kern_louis)(void);
void (*flush_user_all)(void);
void (*flush_user_range)(unsigned long, unsigned long, unsigned int);
@@ -119,6 +127,7 @@ extern struct cpu_cache_fns cpu_cache;
#define __cpuc_flush_icache_all cpu_cache.flush_icache_all
#define __cpuc_flush_kern_all cpu_cache.flush_kern_all
+#define __cpuc_flush_kern_louis cpu_cache.flush_kern_louis
#define __cpuc_flush_user_all cpu_cache.flush_user_all
#define __cpuc_flush_user_range cpu_cache.flush_user_range
#define __cpuc_coherent_kern_range cpu_cache.coherent_kern_range
@@ -139,6 +148,7 @@ extern struct cpu_cache_fns cpu_cache;
extern void __cpuc_flush_icache_all(void);
extern void __cpuc_flush_kern_all(void);
+extern void __cpuc_flush_kern_louis(void);
extern void __cpuc_flush_user_all(void);
extern void __cpuc_flush_user_range(unsigned long, unsigned long, unsigned int);
extern void __cpuc_coherent_kern_range(unsigned long, unsigned long);
@@ -204,6 +214,11 @@ static inline void __flush_icache_all(void)
__flush_icache_preferred();
}
+/*
+ * Flush caches up to Level of Unification Inner Shareable
+ */
+#define flush_cache_louis() __cpuc_flush_kern_louis()
+
#define flush_cache_all() __cpuc_flush_kern_all()
static inline void vivt_flush_cache_mm(struct mm_struct *mm)
diff --git a/arch/arm/include/asm/glue-cache.h b/arch/arm/include/asm/glue-cache.h
index 7e30874..2d6a7de 100644
--- a/arch/arm/include/asm/glue-cache.h
+++ b/arch/arm/include/asm/glue-cache.h
@@ -132,6 +132,7 @@
#ifndef MULTI_CACHE
#define __cpuc_flush_icache_all __glue(_CACHE,_flush_icache_all)
#define __cpuc_flush_kern_all __glue(_CACHE,_flush_kern_cache_all)
+#define __cpuc_flush_kern_louis __glue(_CACHE,_flush_kern_cache_louis)
#define __cpuc_flush_user_all __glue(_CACHE,_flush_user_cache_all)
#define __cpuc_flush_user_range __glue(_CACHE,_flush_user_cache_range)
#define __cpuc_coherent_kern_range __glue(_CACHE,_coherent_kern_range)
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index ebd8ad2..199558b 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -134,8 +134,11 @@ int __cpu_disable(void)
/*
* Flush user cache and TLB mappings, and then remove this CPU
* from the vm mask set of all processes.
+ *
+ * Caches are flushed to the Level of Unification Inner Shareable
+ * to write-back dirty lines to unified caches shared by all CPUs.
*/
- flush_cache_all();
+ flush_cache_louis();
local_flush_tlb_all();
clear_tasks_mm_cpumask(cpu);
diff --git a/arch/arm/kernel/suspend.c b/arch/arm/kernel/suspend.c
index 1794cc3..358bca3 100644
--- a/arch/arm/kernel/suspend.c
+++ b/arch/arm/kernel/suspend.c
@@ -17,6 +17,8 @@ extern void cpu_resume_mmu(void);
*/
void __cpu_suspend_save(u32 *ptr, u32 ptrsz, u32 sp, u32 *save_ptr)
{
+ u32 *ctx = ptr;
+
*save_ptr = virt_to_phys(ptr);
/* This must correspond to the LDM in cpu_resume() assembly */
@@ -26,7 +28,20 @@ void __cpu_suspend_save(u32 *ptr, u32 ptrsz, u32 sp, u32 *save_ptr)
cpu_do_suspend(ptr);
- flush_cache_all();
+ flush_cache_louis();
+
+ /*
+ * flush_cache_louis does not guarantee that
+ * save_ptr and ptr are cleaned to main memory,
+ * just up to the Level of Unification Inner Shareable.
+ * Since the context pointer and context itself
+ * are to be retrieved with the MMU off that
+ * data must be cleaned from all cache levels
+ * to main memory using "area" cache primitives.
+ */
+ __cpuc_flush_dcache_area(ctx, ptrsz);
+ __cpuc_flush_dcache_area(save_ptr, sizeof(*save_ptr));
+
outer_clean_range(*save_ptr, *save_ptr + ptrsz);
outer_clean_range(virt_to_phys(save_ptr),
virt_to_phys(save_ptr) + sizeof(*save_ptr));
diff --git a/arch/arm/mm/cache-fa.S b/arch/arm/mm/cache-fa.S
index 0720163..e505bef 100644
--- a/arch/arm/mm/cache-fa.S
+++ b/arch/arm/mm/cache-fa.S
@@ -240,6 +240,9 @@ ENTRY(fa_dma_unmap_area)
mov pc, lr
ENDPROC(fa_dma_unmap_area)
+ .globl fa_flush_kern_cache_louis
+ .equ fa_flush_kern_cache_louis, fa_flush_kern_cache_all
+
__INITDATA
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
diff --git a/arch/arm/mm/cache-v3.S b/arch/arm/mm/cache-v3.S
index 52e35f3..8a3fade 100644
--- a/arch/arm/mm/cache-v3.S
+++ b/arch/arm/mm/cache-v3.S
@@ -128,6 +128,9 @@ ENTRY(v3_dma_map_area)
ENDPROC(v3_dma_unmap_area)
ENDPROC(v3_dma_map_area)
+ .globl v3_flush_kern_cache_louis
+ .equ v3_flush_kern_cache_louis, v3_flush_kern_cache_all
+
__INITDATA
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
diff --git a/arch/arm/mm/cache-v4.S b/arch/arm/mm/cache-v4.S
index 022135d..43e5d77 100644
--- a/arch/arm/mm/cache-v4.S
+++ b/arch/arm/mm/cache-v4.S
@@ -140,6 +140,9 @@ ENTRY(v4_dma_map_area)
ENDPROC(v4_dma_unmap_area)
ENDPROC(v4_dma_map_area)
+ .globl v4_flush_kern_cache_louis
+ .equ v4_flush_kern_cache_louis, v4_flush_kern_cache_all
+
__INITDATA
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
diff --git a/arch/arm/mm/cache-v4wb.S b/arch/arm/mm/cache-v4wb.S
index 8f1eeae..cd49453 100644
--- a/arch/arm/mm/cache-v4wb.S
+++ b/arch/arm/mm/cache-v4wb.S
@@ -251,6 +251,9 @@ ENTRY(v4wb_dma_unmap_area)
mov pc, lr
ENDPROC(v4wb_dma_unmap_area)
+ .globl v4wb_flush_kern_cache_louis
+ .equ v4wb_flush_kern_cache_louis, v4wb_flush_kern_cache_all
+
__INITDATA
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S
index b34a5f9..11e5e58 100644
--- a/arch/arm/mm/cache-v4wt.S
+++ b/arch/arm/mm/cache-v4wt.S
@@ -196,6 +196,9 @@ ENTRY(v4wt_dma_map_area)
ENDPROC(v4wt_dma_unmap_area)
ENDPROC(v4wt_dma_map_area)
+ .globl v4wt_flush_kern_cache_louis
+ .equ v4wt_flush_kern_cache_louis, v4wt_flush_kern_cache_all
+
__INITDATA
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S
index 4b10760..d8fd4d4 100644
--- a/arch/arm/mm/cache-v6.S
+++ b/arch/arm/mm/cache-v6.S
@@ -326,6 +326,9 @@ ENTRY(v6_dma_unmap_area)
mov pc, lr
ENDPROC(v6_dma_unmap_area)
+ .globl v6_flush_kern_cache_louis
+ .equ v6_flush_kern_cache_louis, v6_flush_kern_cache_all
+
__INITDATA
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
index 39e3fb3..140b294 100644
--- a/arch/arm/mm/cache-v7.S
+++ b/arch/arm/mm/cache-v7.S
@@ -33,6 +33,24 @@ ENTRY(v7_flush_icache_all)
mov pc, lr
ENDPROC(v7_flush_icache_all)
+ /*
+ * v7_flush_dcache_louis()
+ *
+ * Flush the D-cache up to the Level of Unification Inner Shareable
+ *
+ * Corrupted registers: r0-r7, r9-r11 (r6 only in Thumb mode)
+ */
+
+ENTRY(v7_flush_dcache_louis)
+ dmb @ ensure ordering with previous memory accesses
+ mrc p15, 1, r0, c0, c0, 1 @ read clidr, r0 = clidr
+ ands r3, r0, #0xe00000 @ extract LoUIS from clidr
+ mov r3, r3, lsr #20 @ r3 = LoUIS * 2
+ moveq pc, lr @ return if level == 0
+ mov r10, #0 @ r10 (starting level) = 0
+ b flush_levels @ start flushing cache levels
+ENDPROC(v7_flush_dcache_louis)
+
/*
* v7_flush_dcache_all()
*
@@ -49,7 +67,7 @@ ENTRY(v7_flush_dcache_all)
mov r3, r3, lsr #23 @ left align loc bit field
beq finished @ if loc is 0, then no need to clean
mov r10, #0 @ start clean at cache level 0
-loop1:
+flush_levels:
add r2, r10, r10, lsr #1 @ work out 3x current cache level
mov r1, r0, lsr r2 @ extract cache type bits from clidr
and r1, r1, #7 @ mask of the bits for current cache only
@@ -71,9 +89,9 @@ loop1:
clz r5, r4 @ find bit position of way size increment
ldr r7, =0x7fff
ands r7, r7, r1, lsr #13 @ extract max number of the index size
-loop2:
+loop1:
mov r9, r4 @ create working copy of max way size
-loop3:
+loop2:
ARM( orr r11, r10, r9, lsl r5 ) @ factor way and cache number into r11
THUMB( lsl r6, r9, r5 )
THUMB( orr r11, r10, r6 ) @ factor way and cache number into r11
@@ -82,13 +100,13 @@ loop3:
THUMB( orr r11, r11, r6 ) @ factor index number into r11
mcr p15, 0, r11, c7, c14, 2 @ clean & invalidate by set/way
subs r9, r9, #1 @ decrement the way
- bge loop3
- subs r7, r7, #1 @ decrement the index
bge loop2
+ subs r7, r7, #1 @ decrement the index
+ bge loop1
skip:
add r10, r10, #2 @ increment cache number
cmp r3, r10
- bgt loop1
+ bgt flush_levels
finished:
mov r10, #0 @ swith back to cache level 0
mcr p15, 2, r10, c0, c0, 0 @ select current cache level in cssr
@@ -120,6 +138,24 @@ ENTRY(v7_flush_kern_cache_all)
mov pc, lr
ENDPROC(v7_flush_kern_cache_all)
+ /*
+ * v7_flush_kern_cache_louis(void)
+ *
+ * Flush the data cache up to Level of Unification Inner Shareable.
+ * Invalidate the I-cache to the point of unification.
+ */
+ENTRY(v7_flush_kern_cache_louis)
+ ARM( stmfd sp!, {r4-r5, r7, r9-r11, lr} )
+ THUMB( stmfd sp!, {r4-r7, r9-r11, lr} )
+ bl v7_flush_dcache_louis
+ 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
+ ARM( ldmfd sp!, {r4-r5, r7, r9-r11, lr} )
+ THUMB( ldmfd sp!, {r4-r7, r9-r11, lr} )
+ mov pc, lr
+ENDPROC(v7_flush_kern_cache_louis)
+
/*
* v7_flush_cache_all()
*
diff --git a/arch/arm/mm/proc-arm1020.S b/arch/arm/mm/proc-arm1020.S
index 0650bb8..2bb61e7 100644
--- a/arch/arm/mm/proc-arm1020.S
+++ b/arch/arm/mm/proc-arm1020.S
@@ -368,6 +368,9 @@ ENTRY(arm1020_dma_unmap_area)
mov pc, lr
ENDPROC(arm1020_dma_unmap_area)
+ .globl arm1020_flush_kern_cache_louis
+ .equ arm1020_flush_kern_cache_louis, arm1020_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions arm1020
diff --git a/arch/arm/mm/proc-arm1020e.S b/arch/arm/mm/proc-arm1020e.S
index 4188478..8f96aa4 100644
--- a/arch/arm/mm/proc-arm1020e.S
+++ b/arch/arm/mm/proc-arm1020e.S
@@ -354,6 +354,9 @@ ENTRY(arm1020e_dma_unmap_area)
mov pc, lr
ENDPROC(arm1020e_dma_unmap_area)
+ .globl arm1020e_flush_kern_cache_louis
+ .equ arm1020e_flush_kern_cache_louis, arm1020e_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions arm1020e
diff --git a/arch/arm/mm/proc-arm1022.S b/arch/arm/mm/proc-arm1022.S
index 33c6882..8ebe4a4 100644
--- a/arch/arm/mm/proc-arm1022.S
+++ b/arch/arm/mm/proc-arm1022.S
@@ -343,6 +343,9 @@ ENTRY(arm1022_dma_unmap_area)
mov pc, lr
ENDPROC(arm1022_dma_unmap_area)
+ .globl arm1022_flush_kern_cache_louis
+ .equ arm1022_flush_kern_cache_louis, arm1022_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions arm1022
diff --git a/arch/arm/mm/proc-arm1026.S b/arch/arm/mm/proc-arm1026.S
index fbc1d5f..093fc7e 100644
--- a/arch/arm/mm/proc-arm1026.S
+++ b/arch/arm/mm/proc-arm1026.S
@@ -337,6 +337,9 @@ ENTRY(arm1026_dma_unmap_area)
mov pc, lr
ENDPROC(arm1026_dma_unmap_area)
+ .globl arm1026_flush_kern_cache_louis
+ .equ arm1026_flush_kern_cache_louis, arm1026_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions arm1026
diff --git a/arch/arm/mm/proc-arm920.S b/arch/arm/mm/proc-arm920.S
index 1a8c138..2c3b942 100644
--- a/arch/arm/mm/proc-arm920.S
+++ b/arch/arm/mm/proc-arm920.S
@@ -319,6 +319,9 @@ ENTRY(arm920_dma_unmap_area)
mov pc, lr
ENDPROC(arm920_dma_unmap_area)
+ .globl arm920_flush_kern_cache_louis
+ .equ arm920_flush_kern_cache_louis, arm920_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions arm920
#endif
diff --git a/arch/arm/mm/proc-arm922.S b/arch/arm/mm/proc-arm922.S
index 4c44d7e..4464c49 100644
--- a/arch/arm/mm/proc-arm922.S
+++ b/arch/arm/mm/proc-arm922.S
@@ -321,6 +321,9 @@ ENTRY(arm922_dma_unmap_area)
mov pc, lr
ENDPROC(arm922_dma_unmap_area)
+ .globl arm922_flush_kern_cache_louis
+ .equ arm922_flush_kern_cache_louis, arm922_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions arm922
#endif
diff --git a/arch/arm/mm/proc-arm925.S b/arch/arm/mm/proc-arm925.S
index ec5b118..281eb9b 100644
--- a/arch/arm/mm/proc-arm925.S
+++ b/arch/arm/mm/proc-arm925.S
@@ -376,6 +376,9 @@ ENTRY(arm925_dma_unmap_area)
mov pc, lr
ENDPROC(arm925_dma_unmap_area)
+ .globl arm925_flush_kern_cache_louis
+ .equ arm925_flush_kern_cache_louis, arm925_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions arm925
diff --git a/arch/arm/mm/proc-arm926.S b/arch/arm/mm/proc-arm926.S
index c31e62c..f1803f7 100644
--- a/arch/arm/mm/proc-arm926.S
+++ b/arch/arm/mm/proc-arm926.S
@@ -339,6 +339,9 @@ ENTRY(arm926_dma_unmap_area)
mov pc, lr
ENDPROC(arm926_dma_unmap_area)
+ .globl arm926_flush_kern_cache_louis
+ .equ arm926_flush_kern_cache_louis, arm926_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions arm926
diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S
index a613a7d..8da189d 100644
--- a/arch/arm/mm/proc-arm940.S
+++ b/arch/arm/mm/proc-arm940.S
@@ -267,6 +267,9 @@ ENTRY(arm940_dma_unmap_area)
mov pc, lr
ENDPROC(arm940_dma_unmap_area)
+ .globl arm940_flush_kern_cache_louis
+ .equ arm940_flush_kern_cache_louis, arm940_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions arm940
diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S
index 9f4f299..f666cf3 100644
--- a/arch/arm/mm/proc-arm946.S
+++ b/arch/arm/mm/proc-arm946.S
@@ -310,6 +310,9 @@ ENTRY(arm946_dma_unmap_area)
mov pc, lr
ENDPROC(arm946_dma_unmap_area)
+ .globl arm946_flush_kern_cache_louis
+ .equ arm946_flush_kern_cache_louis, arm946_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions arm946
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index 23a8e4c..85e5e3b 100644
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -415,6 +415,9 @@ ENTRY(feroceon_dma_unmap_area)
mov pc, lr
ENDPROC(feroceon_dma_unmap_area)
+ .globl feroceon_flush_kern_cache_louis
+ .equ feroceon_flush_kern_cache_louis, feroceon_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions feroceon
diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
index 2d8ff3a..b29a226 100644
--- a/arch/arm/mm/proc-macros.S
+++ b/arch/arm/mm/proc-macros.S
@@ -299,6 +299,7 @@ ENTRY(\name\()_processor_functions)
ENTRY(\name\()_cache_fns)
.long \name\()_flush_icache_all
.long \name\()_flush_kern_cache_all
+ .long \name\()_flush_kern_cache_louis
.long \name\()_flush_user_cache_all
.long \name\()_flush_user_cache_range
.long \name\()_coherent_kern_range
diff --git a/arch/arm/mm/proc-mohawk.S b/arch/arm/mm/proc-mohawk.S
index fbb2124..82f9cdc 100644
--- a/arch/arm/mm/proc-mohawk.S
+++ b/arch/arm/mm/proc-mohawk.S
@@ -303,6 +303,9 @@ ENTRY(mohawk_dma_unmap_area)
mov pc, lr
ENDPROC(mohawk_dma_unmap_area)
+ .globl mohawk_flush_kern_cache_louis
+ .equ mohawk_flush_kern_cache_louis, mohawk_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions mohawk
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index c2e2b66..846d279 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -172,7 +172,7 @@ __v7_ca15mp_setup:
__v7_setup:
adr r12, __v7_setup_stack @ the local stack
stmia r12, {r0-r5, r7, r9, r11, lr}
- bl v7_flush_dcache_all
+ bl v7_flush_dcache_louis
ldmia r12, {r0-r5, r7, r9, r11, lr}
mrc p15, 0, r0, c0, c0, 0 @ read main ID register
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index b0d5786..eb93d64 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -337,6 +337,9 @@ ENTRY(xsc3_dma_unmap_area)
mov pc, lr
ENDPROC(xsc3_dma_unmap_area)
+ .globl xsc3_flush_kern_cache_louis
+ .equ xsc3_flush_kern_cache_louis, xsc3_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions xsc3
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index 4ffebaa..b5ea31d 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -410,6 +410,9 @@ ENTRY(xscale_dma_unmap_area)
mov pc, lr
ENDPROC(xscale_dma_unmap_area)
+ .globl xscale_flush_kern_cache_louis
+ .equ xscale_flush_kern_cache_louis, xscale_flush_kern_cache_all
+
@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
define_cache_functions xscale
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