49a3f51dfe
This patch replaces the vmap/vunmap's use of raw pointers in GEM object
functions with instances of struct dma_buf_map. GEM backends are
converted as well. For most of them, this simply changes the returned type.
TTM-based drivers now return information about the location of the memory,
either system or I/O memory. GEM VRAM helpers and qxl now use ttm_bo_vmap()
et al. Amdgpu, nouveau and radeon use drm_gem_ttm_vmap() et al instead of
implementing their own vmap callbacks.
v7:
* init QXL cursor to mapped BO buffer (kernel test robot)
v5:
* update vkms after switch to shmem
v4:
* use ttm_bo_vmap(), drm_gem_ttm_vmap(), et al. (Daniel, Christian)
* fix a trailing { in drm_gem_vmap()
* remove several empty functions instead of converting them (Daniel)
* comment uses of raw pointers with a TODO (Daniel)
* TODO list: convert more helpers to use struct dma_buf_map
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Christian König <christian.koenig@amd.com>
Tested-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20201103093015.1063-7-tzimmermann@suse.de
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 OR MIT */
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/*
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* Xen para-virtual DRM device
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*
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* Copyright (C) 2016-2018 EPAM Systems Inc.
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*
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* Author: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
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*/
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#ifndef __XEN_DRM_FRONT_GEM_H
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#define __XEN_DRM_FRONT_GEM_H
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struct dma_buf_attachment;
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struct dma_buf_map;
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struct drm_device;
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struct drm_gem_object;
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struct file;
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struct sg_table;
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struct vm_area_struct;
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struct drm_gem_object *xen_drm_front_gem_create(struct drm_device *dev,
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size_t size);
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struct drm_gem_object *
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xen_drm_front_gem_import_sg_table(struct drm_device *dev,
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struct dma_buf_attachment *attach,
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struct sg_table *sgt);
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struct sg_table *xen_drm_front_gem_get_sg_table(struct drm_gem_object *gem_obj);
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struct page **xen_drm_front_gem_get_pages(struct drm_gem_object *obj);
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void xen_drm_front_gem_free_object_unlocked(struct drm_gem_object *gem_obj);
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int xen_drm_front_gem_mmap(struct file *filp, struct vm_area_struct *vma);
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int xen_drm_front_gem_prime_vmap(struct drm_gem_object *gem_obj,
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struct dma_buf_map *map);
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void xen_drm_front_gem_prime_vunmap(struct drm_gem_object *gem_obj,
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struct dma_buf_map *map);
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int xen_drm_front_gem_prime_mmap(struct drm_gem_object *gem_obj,
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struct vm_area_struct *vma);
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#endif /* __XEN_DRM_FRONT_GEM_H */
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