diff options
| author | Haren Myneni <haren@linux.vnet.ibm.com> | 2012-12-06 22:47:42 +0100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-01-10 07:01:02 +0100 |
| commit | d261386852178ce0bdf836f7c92267f21c8bb3f9 (patch) | |
| tree | da7105b7e765396763be35c18c3873fb87b784df /arch | |
| parent | powerpc: Move branch instruction from ACCOUNT_CPU_USER_ENTRY to caller (diff) | |
| download | linux-d261386852178ce0bdf836f7c92267f21c8bb3f9.tar.xz linux-d261386852178ce0bdf836f7c92267f21c8bb3f9.zip | |
powerpc: Enable PPR save/restore
[PATCH 2/6] powerpc: Enable PPR save/restore
SMT thread status register (PPR) is used to set thread priority. This patch
enables PPR save/restore feature (CPU_FTR_HAS_PPR) on POWER7 and POWER8 systems.
Signed-off-by: Haren Myneni <haren@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/cputable.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index fc4d2c5b6522..8dbf8bbbc624 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -171,6 +171,7 @@ extern const char *powerpc_base_platform; #define CPU_FTR_POPCNTD LONG_ASM_CONST(0x0800000000000000) #define CPU_FTR_ICSWX LONG_ASM_CONST(0x1000000000000000) #define CPU_FTR_VMX_COPY LONG_ASM_CONST(0x2000000000000000) +#define CPU_FTR_HAS_PPR LONG_ASM_CONST(0x4000000000000000) #ifndef __ASSEMBLY__ @@ -400,7 +401,8 @@ extern const char *powerpc_base_platform; CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \ CPU_FTR_DSCR | CPU_FTR_SAO | CPU_FTR_ASYM_SMT | \ CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \ - CPU_FTR_ICSWX | CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY) + CPU_FTR_ICSWX | CPU_FTR_CFAR | CPU_FTR_HVMODE | \ + CPU_FTR_VMX_COPY | CPU_FTR_HAS_PPR) #define CPU_FTRS_POWER8 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \ CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_206 |\ CPU_FTR_MMCRA | CPU_FTR_SMT | \ @@ -409,7 +411,7 @@ extern const char *powerpc_base_platform; CPU_FTR_DSCR | CPU_FTR_SAO | \ CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD | \ CPU_FTR_ICSWX | CPU_FTR_CFAR | CPU_FTR_HVMODE | CPU_FTR_VMX_COPY | \ - CPU_FTR_DBELL) + CPU_FTR_DBELL | CPU_FTR_HAS_PPR) #define CPU_FTRS_CELL (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \ CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \ CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \ |