From: Kevin Wang <Kevin1.Wang@xxxxxxx>
This patch implements get_current_clk_freq for smu11 future use.
Signed-off-by: Kevin Wang <Kevin1.Wang@xxxxxxx>
Reviewed-by: Huang Rui <ray.huang@xxxxxxx>
---
drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 3 +++
drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 24 ++++++++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index db3d0f57..bdd930d 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -251,6 +251,7 @@ struct smu_funcs
int (*disable_all_mask)(struct smu_context *smu);
int (*notify_display_change)(struct smu_context *smu);
int (*get_power_limit)(struct smu_context *smu);
+ int (*get_current_clk_freq)(struct smu_context *smu, uint32_t clk_id, uint32_t *value);
};
#define smu_init_microcode(smu) \
@@ -327,6 +328,8 @@ struct smu_funcs
((smu)->ppt_funcs->populate_umd_state_clk ? (smu)->ppt_funcs->populate_umd_state_clk((smu)) : 0)
#define smu_get_power_limit(smu) \
((smu)->funcs->get_power_limit? (smu)->funcs->get_power_limit((smu)) : 0)
+#define smu_get_current_clk_freq(smu, clk_id, value) \
+ ((smu)->funcs->get_current_clk_freq? (smu)->funcs->get_current_clk_freq((smu), (clk_id), (value)) : 0)
#define smu_msg_get_index(smu, msg) \
((smu)->ppt_funcs? ((smu)->ppt_funcs->get_smu_msg_index? (smu)->ppt_funcs->get_smu_msg_index((smu), (msg)) : -EINVAL) : -EINVAL)
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index 4919867..def64f5 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)
--
2.7.4
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