43387b37fa
All the gem based kms drivers really want the same function to destroy a dumb framebuffer backing storage object. So give it to them and roll it out in all drivers. This still leaves the option open for kms drivers which don't use GEM for backing storage, but it does decently simplify matters for gem drivers. Acked-by: Inki Dae <inki.dae@samsung.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Intel Graphics Development <intel-gfx@lists.freedesktop.org> Cc: Ben Skeggs <skeggsb@gmail.com> Reviwed-by: Rob Clark <robdclark@gmail.com> Cc: Alex Deucher <alexdeucher@gmail.com> Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
52 lines
1.7 KiB
C
52 lines
1.7 KiB
C
#ifndef __DRM_GEM_CMA_HELPER_H__
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#define __DRM_GEM_CMA_HELPER_H__
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struct drm_gem_cma_object {
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struct drm_gem_object base;
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dma_addr_t paddr;
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struct sg_table *sgt;
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/* For objects with DMA memory allocated by GEM CMA */
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void *vaddr;
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};
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static inline struct drm_gem_cma_object *
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to_drm_gem_cma_obj(struct drm_gem_object *gem_obj)
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{
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return container_of(gem_obj, struct drm_gem_cma_object, base);
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}
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/* free gem object. */
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void drm_gem_cma_free_object(struct drm_gem_object *gem_obj);
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/* create memory region for drm framebuffer. */
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int drm_gem_cma_dumb_create(struct drm_file *file_priv,
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struct drm_device *drm, struct drm_mode_create_dumb *args);
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/* map memory region for drm framebuffer to user space. */
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int drm_gem_cma_dumb_map_offset(struct drm_file *file_priv,
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struct drm_device *drm, uint32_t handle, uint64_t *offset);
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/* set vm_flags and we can change the vm attribute to other one at here. */
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int drm_gem_cma_mmap(struct file *filp, struct vm_area_struct *vma);
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/* allocate physical memory. */
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struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
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unsigned int size);
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extern const struct vm_operations_struct drm_gem_cma_vm_ops;
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#ifdef CONFIG_DEBUG_FS
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void drm_gem_cma_describe(struct drm_gem_cma_object *obj, struct seq_file *m);
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#endif
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struct sg_table *drm_gem_cma_prime_get_sg_table(struct drm_gem_object *obj);
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struct drm_gem_object *
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drm_gem_cma_prime_import_sg_table(struct drm_device *dev, size_t size,
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struct sg_table *sgt);
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int drm_gem_cma_prime_mmap(struct drm_gem_object *obj,
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struct vm_area_struct *vma);
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void *drm_gem_cma_prime_vmap(struct drm_gem_object *obj);
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void drm_gem_cma_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
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#endif /* __DRM_GEM_CMA_HELPER_H__ */
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