diff options
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_object.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 2 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_bo_api.h | 9 | ||||
| -rw-r--r-- | include/drm/ttm/ttm_bo_driver.h | 2 |
6 files changed, 28 insertions, 6 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 12ce044f12f..81599d6e636 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -121,7 +121,7 @@ nouveau_bo_new(struct drm_device *dev, int size, int align, ret = ttm_bo_init(&dev_priv->ttm.bdev, &nvbo->bo, size, ttm_bo_type_device, &nvbo->placement, - align >> PAGE_SHIFT, 0, false, NULL, acc_size, + align >> PAGE_SHIFT, 0, false, NULL, acc_size, NULL, nouveau_bo_del_ttm); if (ret) { /* ttm will call nouveau_bo_del_ttm if it fails.. */ diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index df6a4dbd93f..1affbc954c5 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -155,7 +155,7 @@ retry: mutex_lock(&rdev->vram_mutex); r = ttm_bo_init(&rdev->mman.bdev, &bo->tbo, size, type, &bo->placement, page_align, 0, !kernel, NULL, - acc_size, &radeon_ttm_bo_destroy); + acc_size, NULL, &radeon_ttm_bo_destroy); mutex_unlock(&rdev->vram_mutex); if (unlikely(r != 0)) { if (r != -ERESTARTSYS) { diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 1f5c67c579c..36792bd4da7 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -343,6 +343,16 @@ static int ttm_bo_add_ttm(struct ttm_buffer_object *bo, bool zero_alloc) if (unlikely(bo->ttm == NULL)) ret = -ENOMEM; break; + case ttm_bo_type_sg: + bo->ttm = bdev->driver->ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT, + page_flags | TTM_PAGE_FLAG_SG, + glob->dummy_read_page); + if (unlikely(bo->ttm == NULL)) { + ret = -ENOMEM; + break; + } + bo->ttm->sg = bo->sg; + break; default: pr_err("Illegal buffer object type\n"); ret = -EINVAL; @@ -1169,6 +1179,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev, bool interruptible, struct file *persistent_swap_storage, size_t acc_size, + struct sg_table *sg, void (*destroy) (struct ttm_buffer_object *)) { int ret = 0; @@ -1223,6 +1234,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev, bo->seq_valid = false; bo->persistent_swap_storage = persistent_swap_storage; bo->acc_size = acc_size; + bo->sg = sg; atomic_inc(&bo->glob->bo_count); ret = ttm_bo_check_placement(bo, placement); @@ -1233,7 +1245,8 @@ int ttm_bo_init(struct ttm_bo_device *bdev, * For ttm_bo_type_device buffers, allocate * address space from the device. */ - if (bo->type == ttm_bo_type_device) { + if (bo->type == ttm_bo_type_device || + bo->type == ttm_bo_type_sg) { ret = ttm_bo_setup_vm(bo); if (ret) goto out_err; @@ -1312,7 +1325,7 @@ int ttm_bo_create(struct ttm_bo_device *bdev, ret = ttm_bo_init(bdev, bo, size, type, placement, page_alignment, buffer_start, interruptible, - persistent_swap_storage, acc_size, NULL); + persistent_swap_storage, acc_size, NULL, NULL); if (likely(ret == 0)) *p_bo = bo; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index a37abb581cb..22bf9a21ec7 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -1567,7 +1567,7 @@ int vmw_dmabuf_init(struct vmw_private *dev_priv, ret = ttm_bo_init(bdev, &vmw_bo->base, size, ttm_bo_type_device, placement, 0, 0, interruptible, - NULL, acc_size, bo_free); + NULL, acc_size, NULL, bo_free); return ret; } diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 974c8f801c3..e15f2a89a27 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -124,11 +124,15 @@ struct ttm_mem_reg { * * @ttm_bo_type_kernel: These buffers are like ttm_bo_type_device buffers, * but they cannot be accessed from user-space. For kernel-only use. + * + * @ttm_bo_type_sg: Buffer made from dmabuf sg table shared with another + * driver. */ enum ttm_bo_type { ttm_bo_type_device, - ttm_bo_type_kernel + ttm_bo_type_kernel, + ttm_bo_type_sg }; struct ttm_tt; @@ -271,6 +275,8 @@ struct ttm_buffer_object { unsigned long offset; uint32_t cur_placement; + + struct sg_table *sg; }; /** @@ -503,6 +509,7 @@ extern int ttm_bo_init(struct ttm_bo_device *bdev, bool interrubtible, struct file *persistent_swap_storage, size_t acc_size, + struct sg_table *sg, void (*destroy) (struct ttm_buffer_object *)); /** diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index d43e892307f..a05f1b55714 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -81,6 +81,7 @@ struct ttm_backend_func { #define TTM_PAGE_FLAG_PERSISTENT_SWAP (1 << 5) #define TTM_PAGE_FLAG_ZERO_ALLOC (1 << 6) #define TTM_PAGE_FLAG_DMA32 (1 << 7) +#define TTM_PAGE_FLAG_SG (1 << 8) enum ttm_caching_state { tt_uncached, @@ -116,6 +117,7 @@ struct ttm_tt { struct page **pages; uint32_t page_flags; unsigned long num_pages; + struct sg_table *sg; /* for SG objects via dma-buf */ struct ttm_bo_global *glob; struct ttm_backend *be; struct file *swap_storage; |