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Commit 32bf7106 authored by Ken Wang's avatar Ken Wang Committed by Alex Deucher
Browse files

drm/amdgpu add max_memory_clock for interface query (v2) 



Add a query for the max memory clock.

v2: handle the dpm enabled case properly

Signed-off-by: default avatarKen Wang <Qingqing.Wang@amd.com>
Reviewd-by: default avatarJammy Zhou <Jammy.Zhou@amd.com>
parent 35074d2d

drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c

+6 −2
Original line number Diff line number Diff line
@@ -414,11 +414,15 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file 
		dev_info.num_shader_arrays_per_engine = adev->gfx.config.max_sh_per_se;

		/* return all clocks in KHz */

		dev_info.gpu_counter_freq = amdgpu_asic_get_xclk(adev) * 10;

		if (adev->pm.dpm_enabled)

		if (adev->pm.dpm_enabled) {

			dev_info.max_engine_clock =

				adev->pm.dpm.dyn_state.max_clock_voltage_on_ac.sclk * 10;

		else

			dev_info.max_memory_clock =

				adev->pm.dpm.dyn_state.max_clock_voltage_on_ac.mclk * 10;

		} else {

			dev_info.max_engine_clock = adev->pm.default_sclk * 10;

			dev_info.max_memory_clock = adev->pm.default_mclk * 10;

		}

		dev_info.enabled_rb_pipes_mask = adev->gfx.config.backend_enable_mask;

		dev_info.num_rb_pipes = adev->gfx.config.max_backends_per_se *

					adev->gfx.config.max_shader_engines;

include/uapi/drm/amdgpu_drm.h

+1 −0
Original line number Diff line number Diff line
@@ -553,6 +553,7 @@ struct drm_amdgpu_info_device { 
	uint32_t num_shader_arrays_per_engine;

	uint32_t gpu_counter_freq; /* in KHz */

	uint64_t max_engine_clock; /* in KHz */

	uint64_t max_memory_clock; /* in KHz */

	/* cu information */

	uint32_t cu_active_number;

	uint32_t cu_ao_mask;