This callback gets the size and alignment requirements
for the gfx shadow buffer for preemption.
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Christian Koenig <christian.koenig@xxxxxxx>
Signed-off-by: Shashank Sharma <shashank.sharma@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 29 ++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
index 02244bd2c418..0ac0222b178c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c
@@ -860,6 +860,34 @@ 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,
@@ -868,6 +896,7 @@ 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)
--
2.46.2
