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| author | Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com> | 2017-08-10 09:01:19 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-08-10 22:40:01 +1000 |
| commit | 8e84b2d1f0f6a00b6476790f7bce6dcbffe91980 (patch) | |
| tree | f348d51b13bf87653605b18e9dbd6be21e518e29 /arch/powerpc/include | |
| parent | cb8b340de21e1c57e1c6d4f26ccc4af46a3ed559 (diff) | |
| download | lwn-8e84b2d1f0f6a00b6476790f7bce6dcbffe91980.tar.gz lwn-8e84b2d1f0f6a00b6476790f7bce6dcbffe91980.zip | |
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 <shilpa.bhat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/opal-api.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/opal.h | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h index b87305b22746..0cb7d110c0b4 100644 --- a/arch/powerpc/include/asm/opal-api.h +++ b/arch/powerpc/include/asm/opal-api.h @@ -196,6 +196,8 @@ #define OPAL_IMC_COUNTERS_STOP 151 #define OPAL_GET_POWERCAP 152 #define OPAL_SET_POWERCAP 153 +#define OPAL_GET_POWER_SHIFT_RATIO 154 +#define OPAL_SET_POWER_SHIFT_RATIO 155 #define OPAL_PCI_SET_P2P 157 #define OPAL_LAST 157 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__ */ |