drm/amd/powerplay: put dpm frequency setting common code in smu_v11_0.c

As designed the common code shared among all smu v11 ASCIs go to
smu_v11_0.c. This helps to maintain clear code layers.

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>

1 files changed, 84 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 c4d1e7020e1f..ba5e60b71c07 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -1911,3 +1911,87 @@ int smu_v11_0_set_power_source(struct smu_context *smu,
 					NULL);
 }
 
+int smu_v11_0_get_dpm_freq_by_index(struct smu_context *smu,
+				    enum smu_clk_type clk_type,
+				    uint16_t level,
+				    uint32_t *value)
+{
+	int ret = 0, clk_id = 0;
+	uint32_t param;
+
+	if (!value)
+		return -EINVAL;
+
+	if (!smu_clk_dpm_is_enabled(smu, clk_type))
+		return 0;
+
+	clk_id = smu_clk_get_index(smu, clk_type);
+	if (clk_id < 0)
+		return clk_id;
+
+	param = (uint32_t)(((clk_id & 0xffff) << 16) | (level & 0xffff));
+
+	ret = smu_send_smc_msg_with_param(smu,
+					  SMU_MSG_GetDpmFreqByIndex,
+					  param,
+					  value);
+	if (ret)
+		return ret;
+
+	/*
+	 * BIT31:  0 - Fine grained DPM, 1 - Dicrete DPM
+	 * now, we un-support it
+	 */
+	*value = *value & 0x7fffffff;
+
+	return ret;
+}
+
+int smu_v11_0_get_dpm_level_count(struct smu_context *smu,
+				  enum smu_clk_type clk_type,
+				  uint32_t *value)
+{
+	return smu_v11_0_get_dpm_freq_by_index(smu,
+					       clk_type,
+					       0xff,
+					       value);
+}
+
+int smu_v11_0_get_dpm_level_range(struct smu_context *smu,
+				  enum smu_clk_type clk_type,
+				  uint32_t *min_value,
+				  uint32_t *max_value)
+{
+	uint32_t level_count = 0;
+	int ret = 0;
+
+	if (!min_value && !max_value)
+		return -EINVAL;
+
+	if (min_value) {
+		/* by default, level 0 clock value as min value */
+		ret = smu_v11_0_get_dpm_freq_by_index(smu,
+						      clk_type,
+						      0,
+						      min_value);
+		if (ret)
+			return ret;
+	}
+
+	if (max_value) {
+		ret = smu_v11_0_get_dpm_level_count(smu,
+						    clk_type,
+						    &level_count);
+		if (ret)
+			return ret;
+
+		ret = smu_v11_0_get_dpm_freq_by_index(smu,
+						      clk_type,
+						      level_count - 1,
+						      max_value);
+		if (ret)
+			return ret;
+	}
+
+	return ret;
+}