From: Kevin Wang <[email protected]> add this helper function to get dpm clk information (min, max);
Signed-off-by: Kevin Wang <[email protected]> Reviewed-by: Huang Rui <[email protected]> Signed-off-by: Alex Deucher <[email protected]> --- drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 36 +++++++++++++++++++ .../gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 2 ++ 2 files changed, 38 insertions(+) diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c index d565db4ce6d8..c37f59b3995b 100644 --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c @@ -60,6 +60,42 @@ int smu_get_smc_version(struct smu_context *smu, uint32_t *if_version, uint32_t return ret; } +int smu_get_dpm_freq_range(struct smu_context *smu, enum smu_clk_type clk_type, + uint32_t *min, uint32_t *max) +{ + int ret = 0, clk_id = 0; + uint32_t param = 0; + + if (!min && !max) + return -EINVAL; + + clk_id = smu_clk_get_index(smu, clk_type); + if (clk_id < 0) + return clk_id; + + param = (clk_id & 0xffff) << 16; + + if (max) { + ret = smu_send_smc_msg_with_param(smu, SMU_MSG_GetMaxDpmFreq, param); + if (ret) + return ret; + ret = smu_read_smc_arg(smu, max); + if (ret) + return ret; + } + + if (min) { + ret = smu_send_smc_msg_with_param(smu, SMU_MSG_GetMinDpmFreq, param); + if (ret) + return ret; + ret = smu_read_smc_arg(smu, min); + if (ret) + return ret; + } + + return ret; +} + int smu_get_dpm_freq_by_index(struct smu_context *smu, enum smu_clk_type clk_type, uint16_t level, uint32_t *value) { diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h index 16d6f553ba7f..78993e4ee588 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h +++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h @@ -939,4 +939,6 @@ int smu_get_dpm_freq_by_index(struct smu_context *smu, enum smu_clk_type clk_typ uint16_t level, uint32_t *value); int smu_get_dpm_level_count(struct smu_context *smu, enum smu_clk_type clk_type, uint32_t *value); +int smu_get_dpm_freq_range(struct smu_context *smu, enum smu_clk_type clk_type, + uint32_t *min, uint32_t *max); #endif -- 2.20.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
