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| author | Gautham R Shenoy <ego@in.ibm.com> | 2009-10-29 19:22:48 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-11-24 14:33:03 +1100 |
| commit | 69ddb57cbea0b3dd851ea5f1edd1e609ad4da04e (patch) | |
| tree | b6947912b2e4528d5874809af6dae7aa8405ba56 /arch/powerpc/include | |
| parent | d95cacc599a79d87052b3975f60cae62c04dc01f (diff) | |
| download | kernel_samsung_espresso10-69ddb57cbea0b3dd851ea5f1edd1e609ad4da04e.zip kernel_samsung_espresso10-69ddb57cbea0b3dd851ea5f1edd1e609ad4da04e.tar.gz kernel_samsung_espresso10-69ddb57cbea0b3dd851ea5f1edd1e609ad4da04e.tar.bz2 | |
powerpc/pseries: Add extended_cede_processor() helper function.
This patch provides an extended_cede_processor() helper function
which takes the cede latency hint as an argument. This hint is to be passed
on to the hypervisor to cede to the corresponding state on platforms
which support it.
Signed-off-by: Gautham R Shenoy <ego@in.ibm.com>
Signed-off-by: Arun R Bharadwaj <arun@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/lppaca.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h index f78f65c..14b592d 100644 --- a/arch/powerpc/include/asm/lppaca.h +++ b/arch/powerpc/include/asm/lppaca.h @@ -100,7 +100,14 @@ struct lppaca { // Used to pass parms from the OS to PLIC for SetAsrAndRfid u64 saved_gpr3; // Saved GPR3 x20-x27 u64 saved_gpr4; // Saved GPR4 x28-x2F - u64 saved_gpr5; // Saved GPR5 x30-x37 + union { + u64 saved_gpr5; /* Saved GPR5 x30-x37 */ + struct { + u8 cede_latency_hint; /* x30 */ + u8 reserved[7]; /* x31-x36 */ + } fields; + } gpr5_dword; + u8 dtl_enable_mask; // Dispatch Trace Log mask x38-x38 u8 donate_dedicated_cpu; // Donate dedicated CPU cycles x39-x39 |