diff options
| author | Kevin Wang <kevin1.wang@amd.com> | 2019-04-22 14:40:30 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-06-21 18:59:29 -0500 |
| commit | 3366561767209326d3a6d4d2c727788beca7fcea (patch) | |
| tree | f8d981fab8ca7b4d3459ef2d1f92bf7ff015ede3 /drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | |
| parent | 0d7cbd280796f709b134d763295c2d4276392594 (diff) | |
| download | linux-3366561767209326d3a6d4d2c727788beca7fcea.tar.bz2 | |
drm/amd/powerplay: add helper function of smu_set_hard_freq_range
add this function to get dpm clock information.
Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/amdgpu_smu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c index dd06d23bb188..6183b8f6d6c1 100644 --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c @@ -93,6 +93,39 @@ int smu_set_soft_freq_range(struct smu_context *smu, enum smu_clk_type clk_type, return ret; } +int smu_set_hard_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; + + if (min <= 0 && max <= 0) + return -EINVAL; + + clk_id = smu_clk_get_index(smu, clk_type); + if (clk_id < 0) + return clk_id; + + if (max > 0) { + param = (uint32_t)((clk_id << 16) | (max & 0xffff)); + ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetHardMaxByFreq, + param); + if (ret) + return ret; + } + + if (min > 0) { + param = (uint32_t)((clk_id << 16) | (min & 0xffff)); + ret = smu_send_smc_msg_with_param(smu, SMU_MSG_SetHardMinByFreq, + param); + if (ret) + return ret; + } + + + return ret; +} + int smu_get_dpm_freq_range(struct smu_context *smu, enum smu_clk_type clk_type, uint32_t *min, uint32_t *max) { |