Commit aed7caf2 authored by Shashank Sharma's avatar Shashank Sharma Committed by Alex Deucher
Browse files

drm/amdgpu: add get_gfx_shadow_info callback for gfx12 



This callback gets the size and alignment requirements
for the gfx shadow buffer for preemption.

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarShashank Sharma <shashank.sharma@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 2761bb9a

drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c

+29 −0
Original line number Diff line number Diff line
@@ -910,6 +910,34 @@ static void gfx_v12_0_select_me_pipe_q(struct amdgpu_device *adev, 
	soc24_grbm_select(adev, me, pipe, q, vm);

}



/* all sizes are in bytes */

#define MQD_SHADOW_BASE_SIZE      73728

#define MQD_SHADOW_BASE_ALIGNMENT 256

#define MQD_FWWORKAREA_SIZE       484

#define MQD_FWWORKAREA_ALIGNMENT  256



static void gfx_v12_0_get_gfx_shadow_info_nocheck(struct amdgpu_device *adev,

						  struct amdgpu_gfx_shadow_info *shadow_info)

{

	shadow_info->shadow_size = MQD_SHADOW_BASE_SIZE;

	shadow_info->shadow_alignment = MQD_SHADOW_BASE_ALIGNMENT;

	shadow_info->csa_size = MQD_FWWORKAREA_SIZE;

	shadow_info->csa_alignment = MQD_FWWORKAREA_ALIGNMENT;

}



static int gfx_v12_0_get_gfx_shadow_info(struct amdgpu_device *adev,

					 struct amdgpu_gfx_shadow_info *shadow_info,

					 bool skip_check)

{

	if (adev->gfx.cp_gfx_shadow || skip_check) {

		gfx_v12_0_get_gfx_shadow_info_nocheck(adev, shadow_info);

		return 0;

	}



	memset(shadow_info, 0, sizeof(struct amdgpu_gfx_shadow_info));

	return -EINVAL;

}



static const struct amdgpu_gfx_funcs gfx_v12_0_gfx_funcs = {

	.get_gpu_clock_counter = &gfx_v12_0_get_gpu_clock_counter,

	.select_se_sh = &gfx_v12_0_select_se_sh,
@@ -918,6 +946,7 @@ static const struct amdgpu_gfx_funcs gfx_v12_0_gfx_funcs = { 
	.read_wave_vgprs = &gfx_v12_0_read_wave_vgprs,

	.select_me_pipe_q = &gfx_v12_0_select_me_pipe_q,

	.update_perfmon_mgcg = &gfx_v12_0_update_perf_clk,

	.get_gfx_shadow_info = &gfx_v12_0_get_gfx_shadow_info,

};



static int gfx_v12_0_gpu_early_init(struct amdgpu_device *adev)