Commit d435c1ed authored by Lang Yu's avatar Lang Yu Committed by Alex Deucher
Browse files

drm/amd/pm: add get_dpm_ultimate_freq function for cyan skillfish 



Some clients(e.g., kfd) query sclk/mclk through this function.
As cyan skillfish doesn't support dpm, for sclk, set min/max
to CYAN_SKILLFISH_SCLK_MIN/CYAN_SKILLFISH_SCLK_MAX(to maintain the
existing logic).For others, set both min and max to current value.

Before this patch:
 # /opt/rocm/opencl/bin/clinfo

 Max clock frequency:                           0Mhz

After this patch:
 # /opt/rocm/opencl/bin/clinfo

 Max clock frequency:                           2000Mhz

v2:
 - Maintain the existing min/max sclk logic.(Lijo)
v3:
 - Avoid fetching metrics table twice.(Lijo)

Signed-off-by: default avatarLang Yu <Lang.Yu@amd.com>
Reviewed-by: default avatarLijo Lazar <lijo.lazar@amd.com>
Reviewed-by: default avatarHuang Rui <ray.huang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent e9287ef8

drivers/gpu/drm/amd/pm/swsmu/smu11/cyan_skillfish_ppt.c

+31 −0
Original line number Diff line number Diff line
@@ -542,6 +542,36 @@ static int cyan_skillfish_od_edit_dpm_table(struct smu_context *smu, 
	return ret;

}



static int cyan_skillfish_get_dpm_ultimate_freq(struct smu_context *smu,

						enum smu_clk_type clk_type,

						uint32_t *min,

						uint32_t *max)

{

	int ret = 0;

	uint32_t low, high;



	switch (clk_type) {

	case SMU_GFXCLK:

	case SMU_SCLK:

		low = CYAN_SKILLFISH_SCLK_MIN;

		high = CYAN_SKILLFISH_SCLK_MAX;

		break;

	default:

		ret = cyan_skillfish_get_current_clk_freq(smu, clk_type, &low);

		if (ret)

			return ret;

		high = low;

		break;

	}



	if (min)

		*min = low;

	if (max)

		*max = high;



	return 0;

}



static const struct pptable_funcs cyan_skillfish_ppt_funcs = {



	.check_fw_status = smu_v11_0_check_fw_status,
@@ -555,6 +585,7 @@ static const struct pptable_funcs cyan_skillfish_ppt_funcs = { 
	.is_dpm_running = cyan_skillfish_is_dpm_running,

	.get_gpu_metrics = cyan_skillfish_get_gpu_metrics,

	.od_edit_dpm_table = cyan_skillfish_od_edit_dpm_table,

	.get_dpm_ultimate_freq = cyan_skillfish_get_dpm_ultimate_freq,

	.register_irq_handler = smu_v11_0_register_irq_handler,

	.notify_memory_pool_location = smu_v11_0_notify_memory_pool_location,

	.send_smc_msg_with_param = smu_cmn_send_smc_msg_with_param,