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95b74ce889
There is no good reason to flood the kernel log with a WARN stacktrace just because someone tried to mmap a prime buffer. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20190524104251.22761-1-kraxel@redhat.com
82 lines
2.2 KiB
C
82 lines
2.2 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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void *qxl_gem_prime_vmap(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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void *ptr;
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int ret;
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ret = qxl_bo_kmap(bo, &ptr);
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if (ret < 0)
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return ERR_PTR(ret);
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return ptr;
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}
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void qxl_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
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{
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struct qxl_bo *bo = gem_to_qxl_bo(obj);
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qxl_bo_kunmap(bo);
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}
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int qxl_gem_prime_mmap(struct drm_gem_object *obj,
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struct vm_area_struct *area)
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{
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return -ENOSYS;
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}
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