Merge tag 'amd-drm-next-6.6-2023-08-11' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amdgpu:
- SDMA 6.1.0 support
- SMU 13.x fixes
- PSP 13.x fixes
- HDP 6.1 support
- SMUIO 14.0 support
- IH 6.1 support
- Coding style cleanups
- Misc display fixes
- Initial Freesync panel replay support
- RAS fixes
- SDMA 5.2 MGCG updates
- SR-IOV fixes
- DCN3+ gamma fix
- Revert zpos properly until IGT regression is fixed
- NBIO 7.9 fixes
- Use TTM to manage the doorbell BAR
- Async flip fix
- DPIA tracing support
- DCN 3.x TMDS HDMI fixes
- FRU fixes

amdkfd:
- Coding style cleanups
- SVM fixes
- Trap handler fixes
- Convert older APUs to use dGPU path like newer APUs
- Drop IOMMUv2 path as it is no longer used

radeon:
- Coding style cleanups

drm buddy:
- Fix debugging output

UAPI:
- A new memory pool was added to amdgpu_drm.h since we converted doorbell BAR management to use TTM,
  but userspace is blocked from allocating from it at this point, so kind of not really anything new
  here per se

Signed-off-by: Dave Airlie <airlied@redhat.com>

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From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230811211554.7804-1-alexander.deucher@amd.com

1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h
index 0e593cfeb570..a4ecb802d2f9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h
@@ -31,10 +31,15 @@ struct amdgpu_doorbell {
 	/* doorbell mmio */
 	resource_size_t		base;
 	resource_size_t		size;
-	u32 __iomem		*ptr;
 
 	/* Number of doorbells reserved for amdgpu kernel driver */
 	u32 num_kernel_doorbells;
+
+	/* Kernel doorbells */
+	struct amdgpu_bo *kernel_doorbells;
+
+	/* For CPU access of doorbells */
+	uint32_t *cpu_addr;
 };
 
 /* Reserved doorbells for amdgpu (including multimedia).
@@ -350,6 +355,10 @@ void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v);
  */
 int amdgpu_doorbell_init(struct amdgpu_device *adev);
 void amdgpu_doorbell_fini(struct amdgpu_device *adev);
+int amdgpu_doorbell_create_kernel_doorbells(struct amdgpu_device *adev);
+uint32_t amdgpu_doorbell_index_on_bar(struct amdgpu_device *adev,
+				       struct amdgpu_bo *db_bo,
+				       uint32_t doorbell_index);
 
 #define RDOORBELL32(index) amdgpu_mm_rdoorbell(adev, (index))
 #define WDOORBELL32(index, v) amdgpu_mm_wdoorbell(adev, (index), (v))