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drm/amdgpu: add get_gfx_shadow_info callback for gfx11

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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: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2023-03-09 15:10:14 -05:00
parent 0db0c0379d
commit 02527099dd
1 changed files with 22 additions and 0 deletions
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22
drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
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@@ -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)