diff options
| author | Evan Quan <evan.quan@amd.com> | 2020-06-08 16:29:41 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-07-01 01:59:18 -0400 |
| commit | 1e239fdd31cdf1729bc1e8b4538bf590bd28de57 (patch) | |
| tree | ff280969d4229b84aa1b3b97f0ee376549be3dc5 /drivers/gpu/drm/amd/powerplay/smu_v11_0.c | |
| parent | f3bc9aecebbc8f58e13477567afc697dfa6becaf (diff) | |
drm/amd/powerplay: maximize code sharing around power limit
Also cache the current and max power limits.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/smu_v11_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c index 9421b4b50f60..53491c55abd8 100644 --- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c +++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c @@ -1056,6 +1056,29 @@ int smu_v11_0_init_max_sustainable_clocks(struct smu_context *smu) return 0; } +int smu_v11_0_get_current_power_limit(struct smu_context *smu, + uint32_t *power_limit) +{ + int power_src; + int ret = 0; + + if (!smu_feature_is_enabled(smu, SMU_FEATURE_PPT_BIT)) + return -EINVAL; + + power_src = smu_power_get_index(smu, SMU_POWER_SOURCE_AC); + if (power_src < 0) + return -EINVAL; + + ret = smu_send_smc_msg_with_param(smu, + SMU_MSG_GetPptLimit, + power_src << 16, + power_limit); + if (ret) + dev_err(smu->adev->dev, "[%s] get PPT limit failed!", __func__); + + return ret; +} + int smu_v11_0_set_power_limit(struct smu_context *smu, uint32_t n) { int ret = 0; |