mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 07:47:16 +07:00
a0cecc23cf
This patch does more harm than good, as it breaks both Xwayland and gnome-shell with X11. Xwayland requires DRI3 & DRI3 requires PRIME. X11 crash for obscure double-free reason which are hard to debug (starting X11 by hand doesn't trigger the crash). I don't see an apparent problem implementing those stub prime functions, they may return an error at run-time, and it seems to be handled fine by GNOME at least. This reverts commitb318e3ff7c. [airlied: This broke userspace for virtio-gpus, and regressed things from DRI3 to DRI2. This brings back the original problem, but it's better than regressions.] Fixes:b318e3ff7c("drm/virtio: drop prime import/export callbacks") Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
75 lines
2.2 KiB
C
75 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 "virtgpu_drv.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 virtgpu
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*/
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int virtgpu_gem_prime_pin(struct drm_gem_object *obj)
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{
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WARN_ONCE(1, "not implemented");
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return -ENODEV;
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}
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void virtgpu_gem_prime_unpin(struct drm_gem_object *obj)
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{
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WARN_ONCE(1, "not implemented");
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}
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struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj)
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{
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return ERR_PTR(-ENODEV);
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}
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struct drm_gem_object *virtgpu_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(-ENODEV);
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}
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void *virtgpu_gem_prime_vmap(struct drm_gem_object *obj)
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{
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struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj);
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int ret;
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ret = virtio_gpu_object_kmap(bo);
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if (ret)
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return NULL;
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return bo->vmap;
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}
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void virtgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
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{
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virtio_gpu_object_kunmap(gem_to_virtio_gpu_obj(obj));
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}
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int virtgpu_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 -ENODEV;
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}
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