Commit 02527099 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/amdgpu: add get_gfx_shadow_info callback for gfx11 



Used to get the size and alignment requirements for
the gfx shadow buffer for preemption.

v2: use FW version check to determine whether to
    return a valid size here
    return an error if not supported (Alex)
v3: drop GDS (Alex)
v4: make amdgpu_gfx_shadow_info mandatory (Alex)

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 0db0c037

drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c

+22 −0
Original line number Diff line number Diff line
@@ -818,6 +818,27 @@ static void gfx_v11_0_select_me_pipe_q(struct amdgpu_device *adev, 
	soc21_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 int gfx_v11_0_get_gfx_shadow_info(struct amdgpu_device *adev,

					 struct amdgpu_gfx_shadow_info *shadow_info)

{

	if (adev->gfx.cp_gfx_shadow) {

		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;

		return 0;

	} else {

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

		return -ENOTSUPP;

	}

}



static const struct amdgpu_gfx_funcs gfx_v11_0_gfx_funcs = {

	.get_gpu_clock_counter = &gfx_v11_0_get_gpu_clock_counter,

	.select_se_sh = &gfx_v11_0_select_se_sh,
@@ -826,6 +847,7 @@ static const struct amdgpu_gfx_funcs gfx_v11_0_gfx_funcs = { 
	.read_wave_vgprs = &gfx_v11_0_read_wave_vgprs,

	.select_me_pipe_q = &gfx_v11_0_select_me_pipe_q,

	.update_perfmon_mgcg = &gfx_v11_0_update_perf_clk,

	.get_gfx_shadow_info = &gfx_v11_0_get_gfx_shadow_info,

};



static int gfx_v11_0_gpu_early_init(struct amdgpu_device *adev)