Re: [PATCH 2/6] drm/amd: fix’s on ttm_resource rework to use size_t type
Christian König
ckoenig.leichtzumerken at gmail.com
Wed Oct 19 16:43:58 UTC 2022
Am 19.10.22 um 17:27 schrieb Somalapuram Amaranath:
> Fix the ttm_resource from num_pages to size_t size.
>
> Signed-off-by: Somalapuram Amaranath <Amaranath.Somalapuram at amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 2 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 3 ++-
> drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h | 4 ++--
> drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h | 2 +-
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 6 +++---
> drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 8 ++++----
> 6 files changed, 13 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
> index 1f3302aebeff..44367f03316f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
> @@ -144,7 +144,7 @@ static int amdgpu_gtt_mgr_new(struct ttm_resource_manager *man,
> node->base.start = node->mm_nodes[0].start;
> } else {
> node->mm_nodes[0].start = 0;
> - node->mm_nodes[0].size = node->base.num_pages;
> + node->mm_nodes[0].size = PFN_UP(node->base.size);
> node->base.start = AMDGPU_BO_INVALID_OFFSET;
> }
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> index 2e8f6cd7a729..e51f80bb1d07 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
> @@ -542,6 +542,7 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
> /* GWS and OA don't need any alignment. */
> page_align = bp->byte_align;
> size <<= PAGE_SHIFT;
> +
> } else if (bp->domain & AMDGPU_GEM_DOMAIN_GDS) {
> /* Both size and alignment must be a multiple of 4. */
> page_align = ALIGN(bp->byte_align, 4);
> @@ -776,7 +777,7 @@ int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr)
> return 0;
> }
>
> - r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.resource->num_pages, &bo->kmap);
> + r = ttm_bo_kmap(&bo->tbo, 0, PFN_UP(bo->tbo.resource->size), &bo->kmap);
Here bo->tbo.base.size would make more sense, but apart from that the
patch looks good to me.
Regards,
Christian.
> if (r)
> return r;
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
> index 6546552e596c..5c4f93ee0c57 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
> @@ -62,7 +62,7 @@ static inline void amdgpu_res_first(struct ttm_resource *res,
> if (!res)
> goto fallback;
>
> - BUG_ON(start + size > res->num_pages << PAGE_SHIFT);
> + BUG_ON(start + size > res->size);
>
> cur->mem_type = res->mem_type;
>
> @@ -110,7 +110,7 @@ static inline void amdgpu_res_first(struct ttm_resource *res,
> cur->size = size;
> cur->remaining = size;
> cur->node = NULL;
> - WARN_ON(res && start + size > res->num_pages << PAGE_SHIFT);
> + WARN_ON(res && start + size > res->size);
> return;
> }
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
> index 5e6ddc7e101c..677ad2016976 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
> @@ -127,7 +127,7 @@ TRACE_EVENT(amdgpu_bo_create,
>
> TP_fast_assign(
> __entry->bo = bo;
> - __entry->pages = bo->tbo.resource->num_pages;
> + __entry->pages = PFN_UP(bo->tbo.resource->size);
> __entry->type = bo->tbo.resource->mem_type;
> __entry->prefer = bo->preferred_domains;
> __entry->allow = bo->allowed_domains;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index dc262d2c2925..36066965346f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -381,7 +381,7 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
> dst.offset = 0;
>
> r = amdgpu_ttm_copy_mem_to_mem(adev, &src, &dst,
> - new_mem->num_pages << PAGE_SHIFT,
> + new_mem->size,
> amdgpu_bo_encrypted(abo),
> bo->base.resv, &fence);
> if (r)
> @@ -424,7 +424,7 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
> static bool amdgpu_mem_visible(struct amdgpu_device *adev,
> struct ttm_resource *mem)
> {
> - u64 mem_size = (u64)mem->num_pages << PAGE_SHIFT;
> + u64 mem_size = (u64)mem->size;
> struct amdgpu_res_cursor cursor;
> u64 end;
>
> @@ -568,7 +568,7 @@ static int amdgpu_ttm_io_mem_reserve(struct ttm_device *bdev,
> struct ttm_resource *mem)
> {
> struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
> - size_t bus_size = (size_t)mem->num_pages << PAGE_SHIFT;
> + size_t bus_size = (size_t)mem->size;
>
> switch (mem->mem_type) {
> case TTM_PL_SYSTEM:
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> index 73a517bcf5c1..18c1a173d187 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
> @@ -439,7 +439,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
> /* Allocate blocks in desired range */
> vres->flags |= DRM_BUDDY_RANGE_ALLOCATION;
>
> - remaining_size = (u64)vres->base.num_pages << PAGE_SHIFT;
> + remaining_size = (u64)vres->base.size;
>
> mutex_lock(&mgr->lock);
> while (remaining_size) {
> @@ -498,7 +498,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
> LIST_HEAD(temp);
>
> trim_list = &vres->blocks;
> - original_size = (u64)vres->base.num_pages << PAGE_SHIFT;
> + original_size = (u64)vres->base.size;
>
> /*
> * If size value is rounded up to min_block_size, trim the last
> @@ -533,8 +533,8 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
> amdgpu_vram_mgr_block_size(block);
> start >>= PAGE_SHIFT;
>
> - if (start > vres->base.num_pages)
> - start -= vres->base.num_pages;
> + if (start > PFN_UP(vres->base.size))
> + start -= PFN_UP(vres->base.size);
> else
> start = 0;
> vres->base.start = max(vres->base.start, start);
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