From 71fbfdb2b84a4f778f19e44421a66e28e5aadf8d Mon Sep 17 00:00:00 2001 From: Mahantesh Kumbar Date: Thu, 3 Nov 2016 21:10:24 +0530 Subject: gpu: nvgpu: MSCG support - Added enable_mscg, mscg_enabled & mscg_stat flags, mscg_enabled flag can be used to controll mscg enable/disable at runtime along with mscg_stat flag. - Added defines & interface to support ms/mclk-change/post-init-param - Added defines for lpwr tables read from vbios. - HAL to support post init param which is require to setup clockgating interface in PMU & interfaces used during mscg state machine. - gk20a_pmu_pg_global_enable() can be called when pg support required to enable/disable, this also checks & wait if pstate switch is in progress till it complets - pg_mutex to protect PG-RPPG/MSCG enable/disable JIRA DNVGPU-71 Change-Id: If312cefc888a4de0a5c96898baeaac1a76e53e46 Signed-off-by: Mahantesh Kumbar Reviewed-on: http://git-master/r/1247554 (cherry picked from commit e6c94948b8058ba642ea56677ad798fc56b8a28a) Reviewed-on: http://git-master/r/1270971 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom --- drivers/gpu/nvgpu/gk20a/pmu_gk20a.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/gpu/nvgpu/gk20a/pmu_gk20a.h') diff --git a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h index 78652bcb..56300dc8 100644 --- a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h +++ b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.h @@ -629,6 +629,9 @@ struct pmu_pg_stats { #define PMU_ELPG_STAT_OFF_ON_PENDING 4 /* elpg is off, caller has requested on, but ALLOW cmd hasn't been sent due to ENABLE_ALLOW delay */ +#define PMU_MSCG_DISABLED 0 +#define PMU_MSCG_ENABLED 1 + /* Falcon Register index */ #define PMU_FALCON_REG_R0 (0) #define PMU_FALCON_REG_R1 (1) @@ -716,10 +719,13 @@ struct pmu_gk20a { u32 elpg_stat; + u32 mscg_stat; + int pmu_state; #define PMU_ELPG_ENABLE_ALLOW_DELAY_MSEC 1 /* msec */ struct work_struct pg_init; + struct mutex pg_mutex; /* protect pg-RPPG/MSCG enable/disable */ struct mutex elpg_mutex; /* protect elpg enable/disable */ int elpg_refcnt; /* disable -1, enable +1, <=0 elpg disabled, > 0 elpg enabled */ @@ -774,6 +780,7 @@ int gk20a_pmu_cmd_post(struct gk20a *g, struct pmu_cmd *cmd, struct pmu_msg *msg int gk20a_pmu_enable_elpg(struct gk20a *g); int gk20a_pmu_disable_elpg(struct gk20a *g); +int gk20a_pmu_pg_global_enable(struct gk20a *g, u32 enable_pg); u32 gk20a_pmu_pg_engines_list(struct gk20a *g); u32 gk20a_pmu_pg_feature_list(struct gk20a *g, u32 pg_engine_id); -- cgit v1.2.2