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| author | Kevin Wang | 2019-01-15 03:54:45 +0100 |
|---|---|---|
| committer | Alex Deucher | 2019-03-19 21:03:57 +0100 |
| commit | bed3b3a1e19a08c9028db50cb1ebe2e0106c3811 (patch) | |
| tree | 493ac3628bfe2d66e763ebb73f9af0ed527b13b7 /drivers/gpu/drm/amd/powerplay/smu_v11_0.c | |
| parent | drm/amd/powerplay: add function to get power limit for smu11 (v2) (diff) | |
| download | kernel-qcow2-linux-bed3b3a1e19a08c9028db50cb1ebe2e0106c3811.tar.gz kernel-qcow2-linux-bed3b3a1e19a08c9028db50cb1ebe2e0106c3811.tar.xz kernel-qcow2-linux-bed3b3a1e19a08c9028db50cb1ebe2e0106c3811.zip | |
drm/amd/powerplay: implement get_current_clk_freq for smu11
This patch implements get_current_clk_freq for smu11 future use.
Signed-off-by: Kevin Wang <Kevin1.Wang@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 | 24 |
1 files changed, 24 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 491986713774..def64f5a967d 100644 --- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c +++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c @@ -757,6 +757,29 @@ static int smu_v11_0_get_power_limit(struct smu_context *smu) return 0; } +static int smu_v11_0_get_current_clk_freq(struct smu_context *smu, uint32_t clk_id, uint32_t *value) +{ + int ret = 0; + uint32_t freq; + + if (clk_id >= PPCLK_COUNT || !value) + return -EINVAL; + + ret = smu_send_smc_msg_with_param(smu, + SMU_MSG_GetDpmClockFreq, (clk_id << 16)); + if (ret) + return ret; + + ret = smu_read_smc_arg(smu, &freq); + if (ret) + return ret; + + freq *= 100; + *value = freq; + + return ret; +} + static const struct smu_funcs smu_v11_0_funcs = { .init_microcode = smu_v11_0_init_microcode, .load_microcode = smu_v11_0_load_microcode, @@ -786,6 +809,7 @@ static const struct smu_funcs smu_v11_0_funcs = { .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, + .get_current_clk_freq = smu_v11_0_get_current_clk_freq, }; void smu_v11_0_set_smu_funcs(struct smu_context *smu) |