[RFC PATCH v2 4/8] drm/amdgpu: Add mmio_remap bookkeeping to amdgpu_device

[Srinivasan Shanmugam]

Add bookkeeping for the remap page to struct amdgpu_device:

* bo:	kernel-owned singleton BO

v2:
- Use existing amdgpu_mmio_remap container; remove per-field members
  (Alex).
- Use AMD_GPU_PAGE_SIZE (always 4K) per Christian/Alex.

Suggested-by: Alex Deucher <alexander.deucher at amd.com>
Suggested-by: Christian König <christian.koenig at amd.com>
Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index ddd472e56f69..24501d3fbefe 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -752,6 +752,7 @@ typedef void (*amdgpu_block_wreg_t)(struct amdgpu_device*, uint32_t, uint32_t, u
 struct amdgpu_mmio_remap {
 	u32 reg_offset;
 	resource_size_t bus_addr;
+	struct amdgpu_bo *bo;
 };
 
 /* Define the HW IP blocks will be used in driver , add more if necessary */
-- 
2.34.1