[PATCH 1/2] drm/amdgpu: track MQD size for gfx and compute

[Alex Deucher]

It varies by generation and we need to know the size
to expose this via debugfs.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c  | 2 ++
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index c50d59855011..5435f41a3b7f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -404,6 +404,7 @@ int amdgpu_gfx_mqd_sw_init(struct amdgpu_device *adev,
 					return r;
 				}
 
+				ring->mqd_size = mqd_size;
 				/* prepare MQD backup */
 				adev->gfx.me.mqd_backup[i] = kmalloc(mqd_size, GFP_KERNEL);
 				if (!adev->gfx.me.mqd_backup[i])
@@ -424,6 +425,7 @@ int amdgpu_gfx_mqd_sw_init(struct amdgpu_device *adev,
 				return r;
 			}
 
+			ring->mqd_size = mqd_size;
 			/* prepare MQD backup */
 			adev->gfx.mec.mqd_backup[i] = kmalloc(mqd_size, GFP_KERNEL);
 			if (!adev->gfx.mec.mqd_backup[i])
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index 7942cb62e52c..deb9f7bead02 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -257,6 +257,7 @@ struct amdgpu_ring {
 	struct amdgpu_bo	*mqd_obj;
 	uint64_t                mqd_gpu_addr;
 	void                    *mqd_ptr;
+	unsigned                mqd_size;
 	uint64_t                eop_gpu_addr;
 	u32			doorbell_index;
 	bool			use_doorbell;
-- 
2.39.2