From: Lima Project Developers dri-devel@lists.freedesktop.org
Signed-off-by: Qiang Yu yuq825@gmail.com Signed-off-by: Erico Nunes nunes.erico@gmail.com --- drivers/gpu/drm/lima/lima_gem_prime.c | 66 +++++++++++++++++++++++++++ drivers/gpu/drm/lima/lima_gem_prime.h | 31 +++++++++++++ 2 files changed, 97 insertions(+) create mode 100644 drivers/gpu/drm/lima/lima_gem_prime.c create mode 100644 drivers/gpu/drm/lima/lima_gem_prime.h
diff --git a/drivers/gpu/drm/lima/lima_gem_prime.c b/drivers/gpu/drm/lima/lima_gem_prime.c new file mode 100644 index 000000000000..74da43a4378f --- /dev/null +++ b/drivers/gpu/drm/lima/lima_gem_prime.c @@ -0,0 +1,66 @@ +/* + * Copyright (C) 2017-2018 Lima Project + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include <linux/dma-buf.h> +#include <drm/drm_prime.h> + +#include "lima_device.h" +#include "lima_object.h" +#include "lima_gem_prime.h" + +struct drm_gem_object *lima_gem_prime_import_sg_table( + struct drm_device *dev, struct dma_buf_attachment *attach, + struct sg_table *sgt) +{ + struct reservation_object *resv = attach->dmabuf->resv; + struct lima_device *ldev = to_lima_dev(dev); + struct lima_bo *bo; + + ww_mutex_lock(&resv->lock, NULL); + + bo = lima_bo_create(ldev, attach->dmabuf->size, 0, + ttm_bo_type_sg, sgt, resv); + if (IS_ERR(bo)) + goto err_out; + + ww_mutex_unlock(&resv->lock); + return &bo->gem; + +err_out: + ww_mutex_unlock(&resv->lock); + return (void *)bo; +} + +struct reservation_object *lima_gem_prime_res_obj(struct drm_gem_object *obj) +{ + struct lima_bo *bo = to_lima_bo(obj); + + return bo->tbo.resv; +} + +struct sg_table *lima_gem_prime_get_sg_table(struct drm_gem_object *obj) +{ + struct lima_bo *bo = to_lima_bo(obj); + int npages = bo->tbo.num_pages; + + return drm_prime_pages_to_sg(bo->tbo.ttm->pages, npages); +} diff --git a/drivers/gpu/drm/lima/lima_gem_prime.h b/drivers/gpu/drm/lima/lima_gem_prime.h new file mode 100644 index 000000000000..023bf5ba2d7b --- /dev/null +++ b/drivers/gpu/drm/lima/lima_gem_prime.h @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2017-2018 Lima Project + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ +#ifndef __LIMA_GEM_PRIME_H__ +#define __LIMA_GEM_PRIME_H__ + +struct drm_gem_object *lima_gem_prime_import_sg_table( + struct drm_device *dev, struct dma_buf_attachment *attach, + struct sg_table *sgt); +struct sg_table *lima_gem_prime_get_sg_table(struct drm_gem_object *obj); +struct reservation_object *lima_gem_prime_res_obj(struct drm_gem_object *obj); + +#endif