79e2cf2e7a
The new common dma-buf locking convention will require buffer importers to hold the reservation lock around mapping operations. Make DRM GEM core to take the lock around the vmapping operations and update DRM drivers to use the locked functions for the case where DRM core now holds the lock. This patch prepares DRM core and drivers to the common dynamic dma-buf locking convention. Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221017172229.42269-4-dmitry.osipenko@collabora.com
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/*
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* Copyright 2014 Canonical
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Andreas Pokorny
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*/
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#include "qxl_drv.h"
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#include "qxl_object.h"
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/* Empty Implementations as there should not be any other driver for a virtual
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* device that might share buffers with qxl */
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int qxl_gem_prime_pin(struct drm_gem_object *obj)
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{
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struct qxl_bo *bo = gem_to_qxl_bo(obj);
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return qxl_bo_pin(bo);
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}
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void qxl_gem_prime_unpin(struct drm_gem_object *obj)
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{
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struct qxl_bo *bo = gem_to_qxl_bo(obj);
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qxl_bo_unpin(bo);
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}
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struct sg_table *qxl_gem_prime_get_sg_table(struct drm_gem_object *obj)
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{
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return ERR_PTR(-ENOSYS);
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}
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struct drm_gem_object *qxl_gem_prime_import_sg_table(
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struct drm_device *dev, struct dma_buf_attachment *attach,
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struct sg_table *table)
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{
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return ERR_PTR(-ENOSYS);
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}
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int qxl_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
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{
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struct qxl_bo *bo = gem_to_qxl_bo(obj);
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int ret;
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ret = qxl_bo_vmap_locked(bo, map);
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if (ret < 0)
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return ret;
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return 0;
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}
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void qxl_gem_prime_vunmap(struct drm_gem_object *obj,
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struct iosys_map *map)
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{
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struct qxl_bo *bo = gem_to_qxl_bo(obj);
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qxl_bo_vunmap_locked(bo);
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}
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