From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/nouveau/nouveau_prime.c | 103 ++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nouveau_prime.c (limited to 'drivers/gpu/drm/nouveau/nouveau_prime.c') diff --git a/drivers/gpu/drm/nouveau/nouveau_prime.c b/drivers/gpu/drm/nouveau/nouveau_prime.c new file mode 100644 index 000000000..9608121e4 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nouveau_prime.c @@ -0,0 +1,103 @@ +/* + * Copyright 2011 Red Hat Inc. + * + * 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. + * + * Authors: Dave Airlie + */ + +#include + +#include "nouveau_drv.h" +#include "nouveau_gem.h" + +struct sg_table *nouveau_gem_prime_get_sg_table(struct drm_gem_object *obj) +{ + struct nouveau_bo *nvbo = nouveau_gem_object(obj); + + return drm_prime_pages_to_sg(obj->dev, nvbo->bo.ttm->pages, + nvbo->bo.ttm->num_pages); +} + +struct drm_gem_object *nouveau_gem_prime_import_sg_table(struct drm_device *dev, + struct dma_buf_attachment *attach, + struct sg_table *sg) +{ + struct nouveau_drm *drm = nouveau_drm(dev); + struct drm_gem_object *obj; + struct nouveau_bo *nvbo; + struct dma_resv *robj = attach->dmabuf->resv; + u64 size = attach->dmabuf->size; + int align = 0; + int ret; + + dma_resv_lock(robj, NULL); + nvbo = nouveau_bo_alloc(&drm->client, &size, &align, + NOUVEAU_GEM_DOMAIN_GART, 0, 0); + if (IS_ERR(nvbo)) { + obj = ERR_CAST(nvbo); + goto unlock; + } + + nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_GART; + + nvbo->bo.base.funcs = &nouveau_gem_object_funcs; + + /* Initialize the embedded gem-object. We return a single gem-reference + * to the caller, instead of a normal nouveau_bo ttm reference. */ + ret = drm_gem_object_init(dev, &nvbo->bo.base, size); + if (ret) { + nouveau_bo_ref(NULL, &nvbo); + obj = ERR_PTR(-ENOMEM); + goto unlock; + } + + ret = nouveau_bo_init(nvbo, size, align, NOUVEAU_GEM_DOMAIN_GART, + sg, robj); + if (ret) { + obj = ERR_PTR(ret); + goto unlock; + } + + obj = &nvbo->bo.base; + +unlock: + dma_resv_unlock(robj); + return obj; +} + +int nouveau_gem_prime_pin(struct drm_gem_object *obj) +{ + struct nouveau_bo *nvbo = nouveau_gem_object(obj); + int ret; + + /* pin buffer into GTT */ + ret = nouveau_bo_pin(nvbo, NOUVEAU_GEM_DOMAIN_GART, false); + if (ret) + return -EINVAL; + + return 0; +} + +void nouveau_gem_prime_unpin(struct drm_gem_object *obj) +{ + struct nouveau_bo *nvbo = nouveau_gem_object(obj); + + nouveau_bo_unpin(nvbo); +} -- cgit v1.2.3