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| author | Kumar Gala <galak@kernel.crashing.org> | 2009-02-12 13:54:53 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-02-23 15:53:03 +1100 |
| commit | 620165f971753c2c451c880796bac7cd66f3534a (patch) | |
| tree | 1ec36dc067ff0af865f4f6954dbea84ef4205294 /arch/powerpc/include/asm/cputable.h | |
| parent | 6ed8d12849d651c646c108807754a544d2e506f1 (diff) | |
| download | blackbird-op-linux-620165f971753c2c451c880796bac7cd66f3534a.tar.gz blackbird-op-linux-620165f971753c2c451c880796bac7cd66f3534a.zip | |
powerpc: Add support for using doorbells for SMP IPI
The e500mc supports the new msgsnd/doorbell mechanisms that were added in
the Power ISA 2.05 architecture. We use the normal level doorbell for
doing SMP IPIs at this point.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/cputable.h')
| -rw-r--r-- | arch/powerpc/include/asm/cputable.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index 4911104791c3..fca161190db4 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -145,6 +145,7 @@ extern const char *powerpc_base_platform; #define CPU_FTR_USE_TB ASM_CONST(0x0000000000000040) #define CPU_FTR_L2CSR ASM_CONST(0x0000000000000080) #define CPU_FTR_601 ASM_CONST(0x0000000000000100) +#define CPU_FTR_DBELL ASM_CONST(0x0000000000000200) #define CPU_FTR_CAN_NAP ASM_CONST(0x0000000000000400) #define CPU_FTR_L3CR ASM_CONST(0x0000000000000800) #define CPU_FTR_L3_DISABLE_NAP ASM_CONST(0x0000000000001000) @@ -373,7 +374,8 @@ extern const char *powerpc_base_platform; CPU_FTR_NODSISRALIGN | CPU_FTR_NOEXECUTE) #define CPU_FTRS_E500MC (CPU_FTR_MAYBE_CAN_DOZE | CPU_FTR_USE_TB | \ CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_NODSISRALIGN | \ - CPU_FTR_L2CSR | CPU_FTR_LWSYNC | CPU_FTR_NOEXECUTE) + CPU_FTR_L2CSR | CPU_FTR_LWSYNC | CPU_FTR_NOEXECUTE | \ + CPU_FTR_DBELL) #define CPU_FTRS_GENERIC_32 (CPU_FTR_COMMON | CPU_FTR_NODSISRALIGN) /* 64-bit CPUs */ |
