From 69ddb57cbea0b3dd851ea5f1edd1e609ad4da04e Mon Sep 17 00:00:00 2001 From: Gautham R Shenoy Date: Thu, 29 Oct 2009 19:22:48 +0000 Subject: 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 Signed-off-by: Arun R Bharadwaj Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/lppaca.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'arch/powerpc/include/asm/lppaca.h') diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h index f78f65c38f05..14b592dfb4e8 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 -- cgit v1.2.2