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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-07-13 11:35:27 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-17 08:42:53 +0200 |
| commit | 09cf5bcb0c93550db87f738b6012d97dbf73beb7 (patch) | |
| tree | bf81619b962e1bea5fbbfb8d9dc248776f9e4e85 /arch/powerpc/mm | |
| parent | powerpc/mm/hash: Update SDR1 size encoding as documented in ISA 3.0 (diff) | |
| download | linux-09cf5bcb0c93550db87f738b6012d97dbf73beb7.tar.xz linux-09cf5bcb0c93550db87f738b6012d97dbf73beb7.zip | |
powerpc/mm/radix: Update PID switch sequence
Update the PID switch as per ISA doc. slbia is needed in radix to
invalidate any implementation specific lookaside information.
We use the .long format due to build errors with the below compiler
version.
gcc (Ubuntu 5.3.1-14ubuntu2.1) 5.3.1 20160413
GNU assembler (GNU Binutils for Ubuntu) 2.26
CC arch/powerpc/mm//mmu_context_book3s64.o
{standard input}: Assembler messages:
{standard input}:506: Error: junk at end of line: `0x7'
scripts/Makefile.build:291: recipe for target 'arch/powerpc/mm//mmu_context_book3s64.o' failed
make[1]: *** [arch/powerpc/mm//mmu_context_book3s64.o] Error 1
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/mmu_context_book3s64.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/mm/mmu_context_book3s64.c b/arch/powerpc/mm/mmu_context_book3s64.c index 196222227e82..b114f8b93ec9 100644 --- a/arch/powerpc/mm/mmu_context_book3s64.c +++ b/arch/powerpc/mm/mmu_context_book3s64.c @@ -181,7 +181,10 @@ void destroy_context(struct mm_struct *mm) #ifdef CONFIG_PPC_RADIX_MMU void radix__switch_mmu_context(struct mm_struct *prev, struct mm_struct *next) { - mtspr(SPRN_PID, next->context.id); asm volatile("isync": : :"memory"); + mtspr(SPRN_PID, next->context.id); + asm volatile("isync \n" + PPC_SLBIA(0x7) + : : :"memory"); } #endif |