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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-09-27 11:16:35 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-12-03 15:01:17 +0100 |
| commit | 0fc980db9a404a993c4ed542369a745d8a14b0b7 (patch) | |
| tree | e042edc9058d9ade7707b9af601cc80787c0f5aa /arch/powerpc/kernel | |
| parent | powerpc/vdso: Use builtin symbols to locate fixup section (diff) | |
| download | linux-0fc980db9a404a993c4ed542369a745d8a14b0b7.tar.xz linux-0fc980db9a404a993c4ed542369a745d8a14b0b7.zip | |
powerpc/vdso: Merge __kernel_sync_dicache_p5() into __kernel_sync_dicache()
__kernel_sync_dicache_p5() is an alternative to
__kernel_sync_dicache() when cpu has CPU_FTR_COHERENT_ICACHE
Remove this alternative function and merge
__kernel_sync_dicache_p5() into __kernel_sync_dicache() using
standard CPU feature fixup.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/4c7dcc6544882761b2b0249d7a8ec2c3a8088cb5.1601197618.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/vdso.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso32/cacheflush.S | 17 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso32/vdso32.lds.S | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso64/cacheflush.S | 16 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vdso64/vdso64.lds.S | 1 |
5 files changed, 12 insertions, 27 deletions
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index 27449202c1d7..f110b58ff520 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -87,10 +87,6 @@ struct vdso_patch_def * with a coherent icache */ static struct vdso_patch_def vdso_patches[] = { - { - CPU_FTR_COHERENT_ICACHE, CPU_FTR_COHERENT_ICACHE, - "__kernel_sync_dicache", "__kernel_sync_dicache_p5" - }, }; /* diff --git a/arch/powerpc/kernel/vdso32/cacheflush.S b/arch/powerpc/kernel/vdso32/cacheflush.S index 017843bf5382..f340e82d1981 100644 --- a/arch/powerpc/kernel/vdso32/cacheflush.S +++ b/arch/powerpc/kernel/vdso32/cacheflush.S @@ -24,11 +24,15 @@ */ V_FUNCTION_BEGIN(__kernel_sync_dicache) .cfi_startproc +BEGIN_FTR_SECTION + b 3f +END_FTR_SECTION_IFSET(CPU_FTR_COHERENT_ICACHE) #ifdef CONFIG_PPC64 mflr r12 .cfi_register lr,r12 get_datapage r10 mtlr r12 + .cfi_restore lr #endif #ifdef CONFIG_PPC64 @@ -84,20 +88,11 @@ V_FUNCTION_BEGIN(__kernel_sync_dicache) isync li r3,0 blr - .cfi_endproc -V_FUNCTION_END(__kernel_sync_dicache) - - -/* - * POWER5 version of __kernel_sync_dicache - */ -V_FUNCTION_BEGIN(__kernel_sync_dicache_p5) - .cfi_startproc +3: crclr cr0*4+so sync isync li r3,0 blr .cfi_endproc -V_FUNCTION_END(__kernel_sync_dicache_p5) - +V_FUNCTION_END(__kernel_sync_dicache) diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S index dc62772f028c..18b10d177eb5 100644 --- a/arch/powerpc/kernel/vdso32/vdso32.lds.S +++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S @@ -162,7 +162,6 @@ VERSION __kernel_time; __kernel_get_tbfreq; __kernel_sync_dicache; - __kernel_sync_dicache_p5; __kernel_sigtramp32; __kernel_sigtramp_rt32; #if defined(CONFIG_PPC64) || !defined(CONFIG_SMP) diff --git a/arch/powerpc/kernel/vdso64/cacheflush.S b/arch/powerpc/kernel/vdso64/cacheflush.S index 61985de5758f..76c3c8cf8ece 100644 --- a/arch/powerpc/kernel/vdso64/cacheflush.S +++ b/arch/powerpc/kernel/vdso64/cacheflush.S @@ -23,10 +23,14 @@ */ V_FUNCTION_BEGIN(__kernel_sync_dicache) .cfi_startproc +BEGIN_FTR_SECTION + b 3f +END_FTR_SECTION_IFSET(CPU_FTR_COHERENT_ICACHE) mflr r12 .cfi_register lr,r12 get_datapage r10 mtlr r12 + .cfi_restore lr lwz r7,CFG_DCACHE_BLOCKSZ(r10) addi r5,r7,-1 @@ -61,19 +65,11 @@ V_FUNCTION_BEGIN(__kernel_sync_dicache) isync li r3,0 blr - .cfi_endproc -V_FUNCTION_END(__kernel_sync_dicache) - - -/* - * POWER5 version of __kernel_sync_dicache - */ -V_FUNCTION_BEGIN(__kernel_sync_dicache_p5) - .cfi_startproc +3: crclr cr0*4+so sync isync li r3,0 blr .cfi_endproc -V_FUNCTION_END(__kernel_sync_dicache_p5) +V_FUNCTION_END(__kernel_sync_dicache) diff --git a/arch/powerpc/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S index 913d34e8bd05..21aec1382702 100644 --- a/arch/powerpc/kernel/vdso64/vdso64.lds.S +++ b/arch/powerpc/kernel/vdso64/vdso64.lds.S @@ -159,7 +159,6 @@ VERSION __kernel_clock_getres; __kernel_get_tbfreq; __kernel_sync_dicache; - __kernel_sync_dicache_p5; __kernel_sigtramp_rt64; __kernel_getcpu; __kernel_time; |