From 8e84b2d1f0f6a00b6476790f7bce6dcbffe91980 Mon Sep 17 00:00:00 2001 From: Shilpasri G Bhat Date: Thu, 10 Aug 2017 09:01:19 +0530 Subject: powerpc/powernv: Add support to set power-shifting-ratio This patch adds support to set power-shifting-ratio which hints the firmware how to distribute/throttle power between different entities in a system (e.g CPU v/s GPU). This ratio is used by OCC for power capping algorithm. Signed-off-by: Shilpasri G Bhat Signed-off-by: Michael Ellerman --- arch/powerpc/include/asm/opal.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/powerpc/include/asm/opal.h') diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index 6f09ab74aa7b..d87ffcb16b61 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -277,6 +277,8 @@ int64_t opal_imc_counters_stop(uint32_t type, uint64_t cpu_pir); int opal_get_powercap(u32 handle, int token, u32 *pcap); int opal_set_powercap(u32 handle, int token, u32 pcap); +int opal_get_power_shift_ratio(u32 handle, int token, u32 *psr); +int opal_set_power_shift_ratio(u32 handle, int token, u32 psr); /* Internal functions */ extern int early_init_dt_scan_opal(unsigned long node, const char *uname, @@ -356,6 +358,7 @@ static inline int opal_get_async_rc(struct opal_msg msg) void opal_wake_poller(void); void opal_powercap_init(void); +void opal_psr_init(void); #endif /* __ASSEMBLY__ */ -- cgit