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-rw-r--r--arch/parisc/kernel/pacache.S64
1 files changed, 44 insertions, 20 deletions
diff --git a/arch/parisc/kernel/pacache.S b/arch/parisc/kernel/pacache.S
index f33bf2d306d6..b41c0136a05f 100644
--- a/arch/parisc/kernel/pacache.S
+++ b/arch/parisc/kernel/pacache.S
@@ -37,6 +37,7 @@
#include <asm/pgtable.h>
#include <asm/cache.h>
#include <asm/ldcw.h>
+#include <asm/alternative.h>
#include <linux/linkage.h>
#include <linux/init.h>
@@ -190,7 +191,7 @@ ENDPROC_CFI(flush_tlb_all_local)
.import cache_info,data
ENTRY_CFI(flush_instruction_cache_local)
- load32 cache_info, %r1
+88: load32 cache_info, %r1
/* Flush Instruction Cache */
@@ -243,6 +244,7 @@ fioneloop2:
fisync:
sync
mtsm %r22 /* restore I-bit */
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_ICACHE, INSN_NOP)
bv %r0(%r2)
nop
ENDPROC_CFI(flush_instruction_cache_local)
@@ -250,7 +252,7 @@ ENDPROC_CFI(flush_instruction_cache_local)
.import cache_info, data
ENTRY_CFI(flush_data_cache_local)
- load32 cache_info, %r1
+88: load32 cache_info, %r1
/* Flush Data Cache */
@@ -304,6 +306,7 @@ fdsync:
syncdma
sync
mtsm %r22 /* restore I-bit */
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_DCACHE, INSN_NOP)
bv %r0(%r2)
nop
ENDPROC_CFI(flush_data_cache_local)
@@ -312,6 +315,7 @@ ENDPROC_CFI(flush_data_cache_local)
.macro tlb_lock la,flags,tmp
#ifdef CONFIG_SMP
+98:
#if __PA_LDCW_ALIGNMENT > 4
load32 pa_tlb_lock + __PA_LDCW_ALIGNMENT-1, \la
depi 0,31,__PA_LDCW_ALIGN_ORDER, \la
@@ -326,15 +330,17 @@ ENDPROC_CFI(flush_data_cache_local)
nop
b,n 2b
3:
+99: ALTERNATIVE(98b, 99b, ALT_COND_NO_SMP, INSN_NOP)
#endif
.endm
.macro tlb_unlock la,flags,tmp
#ifdef CONFIG_SMP
- ldi 1,\tmp
+98: ldi 1,\tmp
sync
stw \tmp,0(\la)
mtsm \flags
+99: ALTERNATIVE(98b, 99b, ALT_COND_NO_SMP, INSN_NOP)
#endif
.endm
@@ -596,9 +602,11 @@ ENTRY_CFI(copy_user_page_asm)
pdtlb,l %r0(%r29)
#else
tlb_lock %r20,%r21,%r22
- pdtlb %r0(%r28)
- pdtlb %r0(%r29)
+0: pdtlb %r0(%r28)
+1: pdtlb %r0(%r29)
tlb_unlock %r20,%r21,%r22
+ ALTERNATIVE(0b, 0b+4, ALT_COND_NO_SMP, INSN_PxTLB)
+ ALTERNATIVE(1b, 1b+4, ALT_COND_NO_SMP, INSN_PxTLB)
#endif
#ifdef CONFIG_64BIT
@@ -736,8 +744,9 @@ ENTRY_CFI(clear_user_page_asm)
pdtlb,l %r0(%r28)
#else
tlb_lock %r20,%r21,%r22
- pdtlb %r0(%r28)
+0: pdtlb %r0(%r28)
tlb_unlock %r20,%r21,%r22
+ ALTERNATIVE(0b, 0b+4, ALT_COND_NO_SMP, INSN_PxTLB)
#endif
#ifdef CONFIG_64BIT
@@ -813,11 +822,12 @@ ENTRY_CFI(flush_dcache_page_asm)
pdtlb,l %r0(%r28)
#else
tlb_lock %r20,%r21,%r22
- pdtlb %r0(%r28)
+0: pdtlb %r0(%r28)
tlb_unlock %r20,%r21,%r22
+ ALTERNATIVE(0b, 0b+4, ALT_COND_NO_SMP, INSN_PxTLB)
#endif
- ldil L%dcache_stride, %r1
+88: ldil L%dcache_stride, %r1
ldw R%dcache_stride(%r1), r31
#ifdef CONFIG_64BIT
@@ -847,6 +857,7 @@ ENTRY_CFI(flush_dcache_page_asm)
cmpb,COND(<<) %r28, %r25,1b
fdc,m r31(%r28)
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_DCACHE, INSN_NOP)
sync
bv %r0(%r2)
nop
@@ -874,15 +885,19 @@ ENTRY_CFI(flush_icache_page_asm)
#ifdef CONFIG_PA20
pdtlb,l %r0(%r28)
- pitlb,l %r0(%sr4,%r28)
+1: pitlb,l %r0(%sr4,%r28)
+ ALTERNATIVE(1b, 1b+4, ALT_COND_NO_SPLIT_TLB, INSN_NOP)
#else
tlb_lock %r20,%r21,%r22
- pdtlb %r0(%r28)
- pitlb %r0(%sr4,%r28)
+0: pdtlb %r0(%r28)
+1: pitlb %r0(%sr4,%r28)
tlb_unlock %r20,%r21,%r22
+ ALTERNATIVE(0b, 0b+4, ALT_COND_NO_SMP, INSN_PxTLB)
+ ALTERNATIVE(1b, 1b+4, ALT_COND_NO_SMP, INSN_PxTLB)
+ ALTERNATIVE(1b, 1b+4, ALT_COND_NO_SPLIT_TLB, INSN_NOP)
#endif
- ldil L%icache_stride, %r1
+88: ldil L%icache_stride, %r1
ldw R%icache_stride(%r1), %r31
#ifdef CONFIG_64BIT
@@ -914,13 +929,14 @@ ENTRY_CFI(flush_icache_page_asm)
cmpb,COND(<<) %r28, %r25,1b
fic,m %r31(%sr4,%r28)
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_ICACHE, INSN_NOP)
sync
bv %r0(%r2)
nop
ENDPROC_CFI(flush_icache_page_asm)
ENTRY_CFI(flush_kernel_dcache_page_asm)
- ldil L%dcache_stride, %r1
+88: ldil L%dcache_stride, %r1
ldw R%dcache_stride(%r1), %r23
#ifdef CONFIG_64BIT
@@ -950,13 +966,14 @@ ENTRY_CFI(flush_kernel_dcache_page_asm)
cmpb,COND(<<) %r26, %r25,1b
fdc,m %r23(%r26)
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_DCACHE, INSN_NOP)
sync
bv %r0(%r2)
nop
ENDPROC_CFI(flush_kernel_dcache_page_asm)
ENTRY_CFI(purge_kernel_dcache_page_asm)
- ldil L%dcache_stride, %r1
+88: ldil L%dcache_stride, %r1
ldw R%dcache_stride(%r1), %r23
#ifdef CONFIG_64BIT
@@ -985,13 +1002,14 @@ ENTRY_CFI(purge_kernel_dcache_page_asm)
cmpb,COND(<<) %r26, %r25, 1b
pdc,m %r23(%r26)
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_DCACHE, INSN_NOP)
sync
bv %r0(%r2)
nop
ENDPROC_CFI(purge_kernel_dcache_page_asm)
ENTRY_CFI(flush_user_dcache_range_asm)
- ldil L%dcache_stride, %r1
+88: ldil L%dcache_stride, %r1
ldw R%dcache_stride(%r1), %r23
ldo -1(%r23), %r21
ANDCM %r26, %r21, %r26
@@ -999,13 +1017,14 @@ ENTRY_CFI(flush_user_dcache_range_asm)
1: cmpb,COND(<<),n %r26, %r25, 1b
fdc,m %r23(%sr3, %r26)
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_DCACHE, INSN_NOP)
sync
bv %r0(%r2)
nop
ENDPROC_CFI(flush_user_dcache_range_asm)
ENTRY_CFI(flush_kernel_dcache_range_asm)
- ldil L%dcache_stride, %r1
+88: ldil L%dcache_stride, %r1
ldw R%dcache_stride(%r1), %r23
ldo -1(%r23), %r21
ANDCM %r26, %r21, %r26
@@ -1014,13 +1033,14 @@ ENTRY_CFI(flush_kernel_dcache_range_asm)
fdc,m %r23(%r26)
sync
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_DCACHE, INSN_NOP)
syncdma
bv %r0(%r2)
nop
ENDPROC_CFI(flush_kernel_dcache_range_asm)
ENTRY_CFI(purge_kernel_dcache_range_asm)
- ldil L%dcache_stride, %r1
+88: ldil L%dcache_stride, %r1
ldw R%dcache_stride(%r1), %r23
ldo -1(%r23), %r21
ANDCM %r26, %r21, %r26
@@ -1029,13 +1049,14 @@ ENTRY_CFI(purge_kernel_dcache_range_asm)
pdc,m %r23(%r26)
sync
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_DCACHE, INSN_NOP)
syncdma
bv %r0(%r2)
nop
ENDPROC_CFI(purge_kernel_dcache_range_asm)
ENTRY_CFI(flush_user_icache_range_asm)
- ldil L%icache_stride, %r1
+88: ldil L%icache_stride, %r1
ldw R%icache_stride(%r1), %r23
ldo -1(%r23), %r21
ANDCM %r26, %r21, %r26
@@ -1043,13 +1064,14 @@ ENTRY_CFI(flush_user_icache_range_asm)
1: cmpb,COND(<<),n %r26, %r25,1b
fic,m %r23(%sr3, %r26)
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_ICACHE, INSN_NOP)
sync
bv %r0(%r2)
nop
ENDPROC_CFI(flush_user_icache_range_asm)
ENTRY_CFI(flush_kernel_icache_page)
- ldil L%icache_stride, %r1
+88: ldil L%icache_stride, %r1
ldw R%icache_stride(%r1), %r23
#ifdef CONFIG_64BIT
@@ -1079,13 +1101,14 @@ ENTRY_CFI(flush_kernel_icache_page)
cmpb,COND(<<) %r26, %r25, 1b
fic,m %r23(%sr4, %r26)
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_ICACHE, INSN_NOP)
sync
bv %r0(%r2)
nop
ENDPROC_CFI(flush_kernel_icache_page)
ENTRY_CFI(flush_kernel_icache_range_asm)
- ldil L%icache_stride, %r1
+88: ldil L%icache_stride, %r1
ldw R%icache_stride(%r1), %r23
ldo -1(%r23), %r21
ANDCM %r26, %r21, %r26
@@ -1093,6 +1116,7 @@ ENTRY_CFI(flush_kernel_icache_range_asm)
1: cmpb,COND(<<),n %r26, %r25, 1b
fic,m %r23(%sr4, %r26)
+89: ALTERNATIVE(88b, 89b, ALT_COND_NO_ICACHE, INSN_NOP)
sync
bv %r0(%r2)
nop
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