diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2007-09-13 01:44:20 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2007-09-14 08:53:30 -0500 |
| commit | 5e14d21e3f28a4181dacff0336040e30942f4921 (patch) | |
| tree | ebaa8217d5af80e15116960641a0bf87a8b5d717 /include/asm-powerpc | |
| parent | d8f1324a5063c833862328ceafabc53ac3cc4f71 (diff) | |
[POWERPC] Add cpu feature for SPE handling
Make it so that SPE support can be determined at runtime. This is similiar
to how we handle AltiVec. This allows us to have SPE support built in and
work on processors with and without SPE.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'include/asm-powerpc')
| -rw-r--r-- | include/asm-powerpc/cputable.h | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h index 3dc8e2dfca84..f62cffd56c0c 100644 --- a/include/asm-powerpc/cputable.h +++ b/include/asm-powerpc/cputable.h @@ -136,6 +136,7 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start, #define CPU_FTR_REAL_LE ASM_CONST(0x0000000000400000) #define CPU_FTR_FPU_UNAVAILABLE ASM_CONST(0x0000000000800000) #define CPU_FTR_UNIFIED_ID_CACHE ASM_CONST(0x0000000001000000) +#define CPU_FTR_SPE ASM_CONST(0x0000000002000000) /* * Add the 64-bit processor unique features in the top half of the word; @@ -180,6 +181,21 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start, #define PPC_FEATURE_HAS_ALTIVEC_COMP 0 #endif +/* We only set the spe features if the kernel was compiled with spe + * support + */ +#ifdef CONFIG_SPE +#define CPU_FTR_SPE_COMP CPU_FTR_SPE +#define PPC_FEATURE_HAS_SPE_COMP PPC_FEATURE_HAS_SPE +#define PPC_FEATURE_HAS_EFP_SINGLE_COMP PPC_FEATURE_HAS_EFP_SINGLE +#define PPC_FEATURE_HAS_EFP_DOUBLE_COMP PPC_FEATURE_HAS_EFP_DOUBLE +#else +#define CPU_FTR_SPE_COMP 0 +#define PPC_FEATURE_HAS_SPE_COMP 0 +#define PPC_FEATURE_HAS_EFP_SINGLE_COMP 0 +#define PPC_FEATURE_HAS_EFP_DOUBLE_COMP 0 +#endif + /* We need to mark all pages as being coherent if we're SMP or we * have a 74[45]x and an MPC107 host bridge. Also 83xx requires * it for PCI "streaming/prefetch" to work properly. @@ -310,10 +326,12 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start, #define CPU_FTRS_8XX (CPU_FTR_USE_TB) #define CPU_FTRS_40X (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN) #define CPU_FTRS_44X (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN) -#define CPU_FTRS_E200 (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN | \ - CPU_FTR_COHERENT_ICACHE | CPU_FTR_UNIFIED_ID_CACHE) -#define CPU_FTRS_E500 (CPU_FTR_USE_TB | CPU_FTR_NODSISRALIGN) -#define CPU_FTRS_E500_2 (CPU_FTR_USE_TB | \ +#define CPU_FTRS_E200 (CPU_FTR_USE_TB | CPU_FTR_SPE_COMP | \ + CPU_FTR_NODSISRALIGN | CPU_FTR_COHERENT_ICACHE | \ + CPU_FTR_UNIFIED_ID_CACHE) +#define CPU_FTRS_E500 (CPU_FTR_USE_TB | CPU_FTR_SPE_COMP | \ + CPU_FTR_NODSISRALIGN) +#define CPU_FTRS_E500_2 (CPU_FTR_USE_TB | CPU_FTR_SPE_COMP | \ CPU_FTR_BIG_PHYS | CPU_FTR_NODSISRALIGN) #define CPU_FTRS_GENERIC_32 (CPU_FTR_COMMON | CPU_FTR_NODSISRALIGN) |