diff options
| author | Likun Gao | 2018-12-25 07:44:25 +0100 |
|---|---|---|
| committer | Alex Deucher | 2019-03-19 21:03:57 +0100 |
| commit | e66adb1eea90703f4e1d8ea509f7ec3fe0b4be6d (patch) | |
| tree | 8639d2f17b4247e81a7c6d9287d557af7cd3805a /drivers/gpu/drm/amd/powerplay/smu_v11_0.c | |
| parent | drm/amd/powerplay: add function to populate umd state clk. (diff) | |
| download | kernel-qcow2-linux-e66adb1eea90703f4e1d8ea509f7ec3fe0b4be6d.tar.gz kernel-qcow2-linux-e66adb1eea90703f4e1d8ea509f7ec3fe0b4be6d.tar.xz kernel-qcow2-linux-e66adb1eea90703f4e1d8ea509f7ec3fe0b4be6d.zip | |
drm/amd/powerplay: add function to get power limit for smu11 (v2)
Add smu_v11_0_get_power_limit function to get power limit vaule.
v2: update "set" to "get", it only implements "get" behavior. (Alex)
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-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 | 20 |
1 files changed, 20 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 66af3e61d33a..491986713774 100644 --- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c +++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c @@ -738,6 +738,25 @@ static int smu_v11_0_notify_display_change(struct smu_context *smu) return ret; } +static int smu_v11_0_get_power_limit(struct smu_context *smu) +{ + int ret; + uint32_t power_limit_value; + + ret = smu_send_smc_msg_with_param(smu, + SMU_MSG_GetPptLimit, + POWER_SOURCE_AC << 16); + if (ret) { + pr_err("[GetPptLimit] get default PPT limit failed!"); + return ret; + } + + smu_read_smc_arg(smu, &power_limit_value); + smu->power_limit = smu->default_power_limit = power_limit_value; + + return 0; +} + static const struct smu_funcs smu_v11_0_funcs = { .init_microcode = smu_v11_0_init_microcode, .load_microcode = smu_v11_0_load_microcode, @@ -766,6 +785,7 @@ static const struct smu_funcs smu_v11_0_funcs = { .enable_all_mask = smu_v11_0_enable_all_mask, .disable_all_mask = smu_v11_0_disable_all_mask, .notify_display_change = smu_v11_0_notify_display_change, + .get_power_limit = smu_v11_0_get_power_limit, }; void smu_v11_0_set_smu_funcs(struct smu_context *smu) |