From 5e2d38814e9fb39c529030523fe9c6b175c0c19f Mon Sep 17 00:00:00 2001 From: Huang Rui Date: Wed, 16 Jan 2019 14:43:29 +0800 Subject: [PATCH] drm/amd/powerplay: add interface to get current clocks for display This patch fills the amd_pp_clock_info data for display, it will get the current info in that structure. Signed-off-by: Huang Rui Reviewed-by: Kevin Wang Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- .../amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c | 2 + drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 78 +++++++++++++++++++ .../gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 4 + 3 files changed, 84 insertions(+) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c index 389118e3f527..4fa3fa537a0d 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_pp_smu.c @@ -497,6 +497,8 @@ bool dm_pp_get_static_clocks( ret = adev->powerplay.pp_funcs->get_current_clocks( adev->powerplay.pp_handle, &pp_clk_info); + else if (adev->smu.funcs) + ret = smu_get_current_clocks(&adev->smu, &pp_clk_info); if (ret) return false; diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c index cf8739f262c8..9e60f56853b2 100644 --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c @@ -814,6 +814,84 @@ int smu_display_configuration_change(struct smu_context *smu, return 0; } +static int smu_get_clock_info(struct smu_context *smu, + struct smu_clock_info *clk_info, + enum smu_perf_level_designation designation) +{ + int ret; + struct smu_performance_level level = {0}; + + if (!clk_info) + return -EINVAL; + + ret = smu_get_perf_level(smu, PERF_LEVEL_ACTIVITY, &level); + if (ret) + return -EINVAL; + + clk_info->min_mem_clk = level.memory_clock; + clk_info->min_eng_clk = level.core_clock; + clk_info->min_bus_bandwidth = level.non_local_mem_freq * level.non_local_mem_width; + + ret = smu_get_perf_level(smu, designation, &level); + if (ret) + return -EINVAL; + + clk_info->min_mem_clk = level.memory_clock; + clk_info->min_eng_clk = level.core_clock; + clk_info->min_bus_bandwidth = level.non_local_mem_freq * level.non_local_mem_width; + + return 0; +} + +int smu_get_current_clocks(struct smu_context *smu, + struct amd_pp_clock_info *clocks) +{ + struct amd_pp_simple_clock_info simple_clocks = {0}; + struct smu_clock_info hw_clocks; + int ret = 0; + + if (!is_support_sw_smu(smu->adev)) + return -EINVAL; + + mutex_lock(&smu->mutex); + + smu_get_dal_power_level(smu, &simple_clocks); + + if (smu->support_power_containment) + ret = smu_get_clock_info(smu, &hw_clocks, + PERF_LEVEL_POWER_CONTAINMENT); + else + ret = smu_get_clock_info(smu, &hw_clocks, PERF_LEVEL_ACTIVITY); + + if (ret) { + pr_err("Error in smu_get_clock_info\n"); + goto failed; + } + + clocks->min_engine_clock = hw_clocks.min_eng_clk; + clocks->max_engine_clock = hw_clocks.max_eng_clk; + clocks->min_memory_clock = hw_clocks.min_mem_clk; + clocks->max_memory_clock = hw_clocks.max_mem_clk; + clocks->min_bus_bandwidth = hw_clocks.min_bus_bandwidth; + clocks->max_bus_bandwidth = hw_clocks.max_bus_bandwidth; + clocks->max_engine_clock_in_sr = hw_clocks.max_eng_clk; + clocks->min_engine_clock_in_sr = hw_clocks.min_eng_clk; + + if (simple_clocks.level == 0) + clocks->max_clocks_state = PP_DAL_POWERLEVEL_7; + else + clocks->max_clocks_state = simple_clocks.level; + + if (!smu_get_current_shallow_sleep_clocks(smu, &hw_clocks)) { + clocks->max_engine_clock_in_sr = hw_clocks.max_eng_clk; + clocks->min_engine_clock_in_sr = hw_clocks.min_eng_clk; + } + +failed: + mutex_unlock(&smu->mutex); + return ret; +} + static int smu_set_clockgating_state(void *handle, enum amd_clockgating_state state) { diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h index 27a542cdf1f6..a7e62cde5a96 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h +++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h @@ -233,6 +233,8 @@ struct smu_context uint32_t power_limit; uint32_t default_power_limit; + + bool support_power_containment; }; struct pptable_funcs { @@ -465,5 +467,7 @@ enum amd_pm_state_type smu_get_current_power_state(struct smu_context *smu); extern int smu_display_configuration_change(struct smu_context *smu, const struct amd_pp_display_configuration *display_config); +extern int smu_get_current_clocks(struct smu_context *smu, + struct amd_pp_clock_info *clocks); #endif -- 2.30.2