This allows importing reservation objects from dma-bufs.
Signed-off-by: Maarten Lankhorst maarten.lankhorst@canonical.com --- drivers/gpu/drm/ast/ast_ttm.c | 2 +- drivers/gpu/drm/bochs/bochs_mm.c | 2 +- drivers/gpu/drm/cirrus/cirrus_ttm.c | 2 +- drivers/gpu/drm/mgag200/mgag200_ttm.c | 2 +- drivers/gpu/drm/nouveau/nouveau_bo.c | 2 +- drivers/gpu/drm/qxl/qxl_object.c | 2 +- drivers/gpu/drm/radeon/radeon_object.c | 2 +- drivers/gpu/drm/ttm/ttm_bo.c | 24 ++++++++++++++++++------ drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 2 +- include/drm/ttm/ttm_bo_api.h | 2 ++ 10 files changed, 28 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/ast/ast_ttm.c b/drivers/gpu/drm/ast/ast_ttm.c index 8008ea0bc76c..58c19cfe6af0 100644 --- a/drivers/gpu/drm/ast/ast_ttm.c +++ b/drivers/gpu/drm/ast/ast_ttm.c @@ -339,7 +339,7 @@ int ast_bo_create(struct drm_device *dev, int size, int align, ret = ttm_bo_init(&ast->ttm.bdev, &astbo->bo, size, ttm_bo_type_device, &astbo->placement, align >> PAGE_SHIFT, false, NULL, acc_size, - NULL, ast_bo_ttm_destroy); + NULL, NULL, ast_bo_ttm_destroy); if (ret) return ret;
diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c index 2af30e7607d7..6c50a7a44864 100644 --- a/drivers/gpu/drm/bochs/bochs_mm.c +++ b/drivers/gpu/drm/bochs/bochs_mm.c @@ -377,7 +377,7 @@ static int bochs_bo_create(struct drm_device *dev, int size, int align, ret = ttm_bo_init(&bochs->ttm.bdev, &bochsbo->bo, size, ttm_bo_type_device, &bochsbo->placement, align >> PAGE_SHIFT, false, NULL, acc_size, - NULL, bochs_bo_ttm_destroy); + NULL, NULL, bochs_bo_ttm_destroy); if (ret) return ret;
diff --git a/drivers/gpu/drm/cirrus/cirrus_ttm.c b/drivers/gpu/drm/cirrus/cirrus_ttm.c index 3e7d758330a9..b3b3d16d1279 100644 --- a/drivers/gpu/drm/cirrus/cirrus_ttm.c +++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c @@ -343,7 +343,7 @@ int cirrus_bo_create(struct drm_device *dev, int size, int align, ret = ttm_bo_init(&cirrus->ttm.bdev, &cirrusbo->bo, size, ttm_bo_type_device, &cirrusbo->placement, align >> PAGE_SHIFT, false, NULL, acc_size, - NULL, cirrus_bo_ttm_destroy); + NULL, NULL, cirrus_bo_ttm_destroy); if (ret) return ret;
diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c index be883ef5a1d3..398b6fb161a6 100644 --- a/drivers/gpu/drm/mgag200/mgag200_ttm.c +++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c @@ -339,7 +339,7 @@ int mgag200_bo_create(struct drm_device *dev, int size, int align, ret = ttm_bo_init(&mdev->ttm.bdev, &mgabo->bo, size, ttm_bo_type_device, &mgabo->placement, align >> PAGE_SHIFT, false, NULL, acc_size, - NULL, mgag200_bo_ttm_destroy); + NULL, NULL, mgag200_bo_ttm_destroy); if (ret) return ret;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index eea74b127b03..bda32276bcc2 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -230,7 +230,7 @@ nouveau_bo_new(struct drm_device *dev, int size, int align, ret = ttm_bo_init(&drm->ttm.bdev, &nvbo->bo, size, type, &nvbo->placement, align >> PAGE_SHIFT, false, NULL, acc_size, sg, - nouveau_bo_del_ttm); + NULL, nouveau_bo_del_ttm); if (ret) { /* ttm will call nouveau_bo_del_ttm if it fails.. */ return ret; diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c index 69c104c3240f..cdeaf08fdc74 100644 --- a/drivers/gpu/drm/qxl/qxl_object.c +++ b/drivers/gpu/drm/qxl/qxl_object.c @@ -110,7 +110,7 @@ int qxl_bo_create(struct qxl_device *qdev,
r = ttm_bo_init(&qdev->mman.bdev, &bo->tbo, size, type, &bo->placement, 0, !kernel, NULL, size, - NULL, &qxl_ttm_bo_destroy); + NULL, NULL, &qxl_ttm_bo_destroy); if (unlikely(r != 0)) { if (r != -ERESTARTSYS) dev_err(qdev->dev, diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index aadbd36e64b9..61f3f16bbcbc 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -209,7 +209,7 @@ int radeon_bo_create(struct radeon_device *rdev, down_read(&rdev->pm.mclk_lock); r = ttm_bo_init(&rdev->mman.bdev, &bo->tbo, size, type, &bo->placement, page_align, !kernel, NULL, - acc_size, sg, &radeon_ttm_bo_destroy); + acc_size, sg, NULL, &radeon_ttm_bo_destroy); up_read(&rdev->pm.mclk_lock); if (unlikely(r != 0)) { return r; diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index a11969acfea5..8f5cec67c47d 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1068,6 +1068,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev, struct file *persistent_swap_storage, size_t acc_size, struct sg_table *sg, + struct reservation_object *resv, void (*destroy) (struct ttm_buffer_object *)) { int ret = 0; @@ -1121,8 +1122,13 @@ int ttm_bo_init(struct ttm_bo_device *bdev, bo->persistent_swap_storage = persistent_swap_storage; bo->acc_size = acc_size; bo->sg = sg; - bo->resv = &bo->ttm_resv; - reservation_object_init(bo->resv); + if (resv) { + bo->resv = resv; + lockdep_assert_held(&bo->resv->lock.base); + } else { + bo->resv = &bo->ttm_resv; + reservation_object_init(&bo->ttm_resv); + } atomic_inc(&bo->glob->bo_count); drm_vma_node_reset(&bo->vma_node);
@@ -1135,13 +1141,19 @@ int ttm_bo_init(struct ttm_bo_device *bdev, ret = drm_vma_offset_add(&bdev->vma_manager, &bo->vma_node, bo->mem.num_pages);
- locked = ww_mutex_trylock(&bo->resv->lock); - WARN_ON(!locked); + /* passed reservation objects should already be locked, + * since otherwise lockdep will be angered in radeon. + */ + if (!resv) { + locked = ww_mutex_trylock(&bo->resv->lock); + WARN_ON(!locked); + }
if (likely(!ret)) ret = ttm_bo_validate(bo, placement, interruptible, false);
- ttm_bo_unreserve(bo); + if (!resv) + ttm_bo_unreserve(bo);
if (unlikely(ret)) ttm_bo_unref(&bo); @@ -1199,7 +1211,7 @@ int ttm_bo_create(struct ttm_bo_device *bdev, acc_size = ttm_bo_acc_size(bdev, size, sizeof(struct ttm_buffer_object)); ret = ttm_bo_init(bdev, bo, size, type, placement, page_alignment, interruptible, persistent_swap_storage, acc_size, - NULL, NULL); + NULL, 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 ff0e03b97753..4098b2aa5588 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -429,7 +429,7 @@ int vmw_dmabuf_init(struct vmw_private *dev_priv, ret = ttm_bo_init(bdev, &vmw_bo->base, size, ttm_bo_type_device, placement, 0, interruptible, - NULL, acc_size, NULL, bo_free); + NULL, acc_size, NULL, NULL, bo_free); return ret; }
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h index 70b44917c368..0ccf7f267ff9 100644 --- a/include/drm/ttm/ttm_bo_api.h +++ b/include/drm/ttm/ttm_bo_api.h @@ -460,6 +460,7 @@ size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev, * point to the shmem object backing a GEM object if TTM is used to back a * GEM user interface. * @acc_size: Accounted size for this object. + * @resv: Pointer to a reservation_object, or NULL to let ttm allocate one. * @destroy: Destroy function. Use NULL for kfree(). * * This function initializes a pre-allocated struct ttm_buffer_object. @@ -487,6 +488,7 @@ extern int ttm_bo_init(struct ttm_bo_device *bdev, struct file *persistent_swap_storage, size_t acc_size, struct sg_table *sg, + struct reservation_object *resv, void (*destroy) (struct ttm_buffer_object *));
/**