diff mbox series

linux-next: manual merge of the amdgpu tree with the drm-misc tree

Message ID 20210603124847.19a6dacf@canb.auug.org.au (mailing list archive)
State New, archived
Headers show
Series linux-next: manual merge of the amdgpu tree with the drm-misc tree | expand

Commit Message

Stephen Rothwell June 3, 2021, 2:48 a.m. UTC
Hi all,

Today's linux-next merge of the amdgpu tree got conflicts in:

  drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
  drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

between commit:

  d3116756a710 ("drm/ttm: rename bo->mem and make it a pointer")

from the drm-misc tree and commits:

  b453e42a6e8b ("drm/amdgpu: Add new placement for preemptible SG BOs")
  2a675640bc2d ("drm/amdgpu: move shadow bo validation to VM code")
  59276f056fb7 ("drm/amdgpu: switch to amdgpu_bo_vm for vm code")
  19a1d9350be6 ("drm/amdgpu: flush gart changes after all BO recovery")

from the amdgpu tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

Comments

Stephen Rothwell June 3, 2021, 2:55 a.m. UTC | #1
Hi all,

On Thu, 3 Jun 2021 12:48:47 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index bcfd4a8d0288,1923f035713a..000000000000
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@@ -657,11 -657,10 +658,11 @@@ void amdgpu_vm_move_to_lru_tail(struct 
>   		if (!bo->parent)
>   			continue;
>   
>  -		ttm_bo_move_to_lru_tail(&bo->tbo, &bo->tbo.mem,
>  +		ttm_bo_move_to_lru_tail(&bo->tbo, bo->tbo.resource,
>   					&vm->lru_bulk_move);
> - 		if (bo->shadow)
> - 			ttm_bo_move_to_lru_tail(&bo->shadow->tbo,
> + 		if (shadow)
>  -			ttm_bo_move_to_lru_tail(&shadow->tbo, &shadow->tbo.mem,
> ++			ttm_bo_move_to_lru_tail(&shadow->tbo,
>  +						bo->shadow->tbo.resource,

that line should have been
						shadow->tbo.resource,

I have fixed it up in my resolution.
Stephen Rothwell June 4, 2021, 2:33 a.m. UTC | #2
Hi all,

On Thu, 3 Jun 2021 12:48:47 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> Today's linux-next merge of the amdgpu tree got conflicts in:
> 
>   drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
>   drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> 
> between commit:
> 
>   d3116756a710 ("drm/ttm: rename bo->mem and make it a pointer")
> 
> from the drm-misc tree and commits:
> 
>   b453e42a6e8b ("drm/amdgpu: Add new placement for preemptible SG BOs")
>   2a675640bc2d ("drm/amdgpu: move shadow bo validation to VM code")
>   59276f056fb7 ("drm/amdgpu: switch to amdgpu_bo_vm for vm code")
>   19a1d9350be6 ("drm/amdgpu: flush gart changes after all BO recovery")
> 
> from the amdgpu tree.
> 
> I fixed it up (see below) and can carry the fix as necessary. This
> is now fixed as far as linux-next is concerned, but any non trivial
> conflicts should be mentioned to your upstream maintainer when your tree
> is submitted for merging.  You may also want to consider cooperating
> with the maintainer of the conflicting tree to minimise any particularly
> complex conflicts.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index 663aa7d2e2ea,86259435803e..000000000000
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@@ -459,10 -479,11 +461,11 @@@ static int amdgpu_bo_move(struct ttm_bu
>   {
>   	struct amdgpu_device *adev;
>   	struct amdgpu_bo *abo;
>  -	struct ttm_resource *old_mem = &bo->mem;
>  +	struct ttm_resource *old_mem = bo->resource;
>   	int r;
>   
> - 	if (new_mem->mem_type == TTM_PL_TT) {
> + 	if (new_mem->mem_type == TTM_PL_TT ||
> + 	    new_mem->mem_type == AMDGPU_PL_PREEMPT) {
>   		r = amdgpu_ttm_backend_bind(bo->bdev, bo->ttm, new_mem);
>   		if (r)
>   			return r;
> @@@ -989,8 -1012,9 +995,9 @@@ int amdgpu_ttm_alloc_gart(struct ttm_bu
>   			return r;
>   		}
>   
> + 		amdgpu_gart_invalidate_tlb(adev);
>  -		ttm_resource_free(bo, &bo->mem);
>  -		bo->mem = tmp;
>  +		ttm_resource_free(bo, bo->resource);
>  +		ttm_bo_assign_mem(bo, &tmp);
>   	}
>   
>   	return 0;
> @@@ -1348,7 -1373,16 +1356,16 @@@ static bool amdgpu_ttm_bo_eviction_valu
>   		}
>   	}
>   
>  -	switch (bo->mem.mem_type) {
>  +	switch (bo->resource->mem_type) {
> + 	case AMDGPU_PL_PREEMPT:
> + 		/* Preemptible BOs don't own system resources managed by the
> + 		 * driver (pages, VRAM, GART space). They point to resources
> + 		 * owned by someone else (e.g. pageable memory in user mode
> + 		 * or a DMABuf). They are used in a preemptible context so we
> + 		 * can guarantee no deadlocks and good QoS in case of MMU
> + 		 * notifiers or DMABuf move notifiers from the resource owner.
> + 		 */
> + 		return false;
>   	case TTM_PL_TT:
>   		if (amdgpu_bo_is_amdgpu_bo(bo) &&
>   		    amdgpu_bo_encrypted(ttm_to_amdgpu_bo(bo)))
> @@@ -1767,8 -1809,13 +1791,9 @@@ void amdgpu_ttm_fini(struct amdgpu_devi
>   	amdgpu_bo_free_kernel(&adev->mman.discovery_memory, NULL, NULL);
>   	amdgpu_ttm_fw_reserve_vram_fini(adev);
>   
>  -	if (adev->mman.aper_base_kaddr)
>  -		iounmap(adev->mman.aper_base_kaddr);
>  -	adev->mman.aper_base_kaddr = NULL;
>  -
>   	amdgpu_vram_mgr_fini(adev);
>   	amdgpu_gtt_mgr_fini(adev);
> + 	amdgpu_preempt_mgr_fini(adev);
>   	ttm_range_man_fini(&adev->mman.bdev, AMDGPU_PL_GDS);
>   	ttm_range_man_fini(&adev->mman.bdev, AMDGPU_PL_GWS);
>   	ttm_range_man_fini(&adev->mman.bdev, AMDGPU_PL_OA);
> @@@ -1919,7 -2010,12 +1944,12 @@@ int amdgpu_fill_buffer(struct amdgpu_b
>   		return -EINVAL;
>   	}
>   
>  -	if (bo->tbo.mem.mem_type == AMDGPU_PL_PREEMPT) {
> ++	if (bo->tbo.resource->mem_type == AMDGPU_PL_PREEMPT) {
> + 		DRM_ERROR("Trying to clear preemptible memory.\n");
> + 		return -EINVAL;
> + 	}
> + 
>  -	if (bo->tbo.mem.mem_type == TTM_PL_TT) {
>  +	if (bo->tbo.resource->mem_type == TTM_PL_TT) {
>   		r = amdgpu_ttm_alloc_gart(&bo->tbo);
>   		if (r)
>   			return r;
> diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> index bcfd4a8d0288,1923f035713a..000000000000
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
> @@@ -657,11 -657,10 +658,11 @@@ void amdgpu_vm_move_to_lru_tail(struct 
>   		if (!bo->parent)
>   			continue;
>   
>  -		ttm_bo_move_to_lru_tail(&bo->tbo, &bo->tbo.mem,
>  +		ttm_bo_move_to_lru_tail(&bo->tbo, bo->tbo.resource,
>   					&vm->lru_bulk_move);
> - 		if (bo->shadow)
> - 			ttm_bo_move_to_lru_tail(&bo->shadow->tbo,
> + 		if (shadow)
>  -			ttm_bo_move_to_lru_tail(&shadow->tbo, &shadow->tbo.mem,
> ++			ttm_bo_move_to_lru_tail(&shadow->tbo,
>  +						shadow->tbo.resource,
>   						&vm->lru_bulk_move);
>   	}
>   	spin_unlock(&adev->mman.bdev.lru_lock);
> @@@ -1818,11 -1853,12 +1859,12 @@@ int amdgpu_vm_bo_update(struct amdgpu_d
>   			struct drm_gem_object *gobj = dma_buf->priv;
>   			struct amdgpu_bo *abo = gem_to_amdgpu_bo(gobj);
>   
>  -			if (abo->tbo.mem.mem_type == TTM_PL_VRAM)
>  +			if (abo->tbo.resource->mem_type == TTM_PL_VRAM)
>   				bo = gem_to_amdgpu_bo(gobj);
>   		}
>  -		mem = &bo->tbo.mem;
>  +		mem = bo->tbo.resource;
> - 		if (mem->mem_type == TTM_PL_TT)
> + 		if (mem->mem_type == TTM_PL_TT ||
> + 		    mem->mem_type == AMDGPU_PL_PREEMPT)
>   			pages_addr = bo->tbo.ttm->dma_address;
>   	}
>   

This is now a conflict between the drm-misc tree and the drm tree.

(I fixed up the resolution above)
diff mbox series

Patch

diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 663aa7d2e2ea,86259435803e..000000000000
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index bcfd4a8d0288,1923f035713a..000000000000
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c