drm/amd/powerplay: add helper function to get dpm freq informations (3ac54a50) · Commits · 戴 / test

drivers/gpu/drm/amd/powerplay/amdgpu_smu.c

+37 −0

Original line number	Diff line number	Diff line
		@@ -60,6 +60,43 @@ int smu_get_smc_version(struct smu_context smu, uint32_t if_version, uint32_t
		return ret;
		}

		int smu_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;

		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);
		if (ret)
		return ret;

		ret = smu_read_smc_arg(smu, &param);
		if (ret)
		return ret;

		/* BIT31: 0 - Fine grained DPM, 1 - Dicrete DPM
		* now, we un-support it */
		*value = param & 0x7fffffff;

		return ret;
		}

		int smu_get_dpm_level_count(struct smu_context *smu, enum smu_clk_type clk_type,
		uint32_t *value)
		{
		return smu_get_dpm_freq_by_index(smu, clk_type, 0xff, value);
		}

		int smu_dpm_set_power_gate(struct smu_context *smu, uint32_t block_type,
		bool gate)
		{

+4 −0

Original line number	Diff line number	Diff line
		@@ -928,4 +928,8 @@ extern int smu_handle_task(struct smu_context *smu,
		enum amd_dpm_forced_level level,
		enum amd_pp_task task_id);
		int smu_get_smc_version(struct smu_context smu, uint32_t if_version, uint32_t *smu_version);
		int smu_get_dpm_freq_by_index(struct smu_context *smu, enum smu_clk_type clk_type,
		uint16_t level, uint32_t *value);
		int smu_get_dpm_level_count(struct smu_context *smu, enum smu_clk_type clk_type,
		uint32_t *value);
		#endif