b88baab828
This commit provides the implementation for the new uapi motivated by the Vulkan API. It allows user mode drivers (UMDs) to: 1) Initialize a GPU virtual address (VA) space via the new DRM_IOCTL_NOUVEAU_VM_INIT ioctl for UMDs to specify the portion of VA space managed by the kernel and userspace, respectively. 2) Allocate and free a VA space region as well as bind and unbind memory to the GPUs VA space via the new DRM_IOCTL_NOUVEAU_VM_BIND ioctl. UMDs can request the named operations to be processed either synchronously or asynchronously. It supports DRM syncobjs (incl. timelines) as synchronization mechanism. The management of the GPU VA mappings is implemented with the DRM GPU VA manager. 3) Execute push buffers with the new DRM_IOCTL_NOUVEAU_EXEC ioctl. The execution happens asynchronously. It supports DRM syncobj (incl. timelines) as synchronization mechanism. DRM GEM object locking is handled with drm_exec. Both, DRM_IOCTL_NOUVEAU_VM_BIND and DRM_IOCTL_NOUVEAU_EXEC, use the DRM GPU scheduler for the asynchronous paths. Reviewed-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230804182406.5222-12-dakr@redhat.com
43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
/* SPDX-License-Identifier: MIT */
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#ifndef __NOUVEAU_GEM_H__
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#define __NOUVEAU_GEM_H__
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#include "nouveau_drv.h"
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#include "nouveau_bo.h"
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extern const struct drm_gem_object_funcs nouveau_gem_object_funcs;
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static inline struct nouveau_bo *
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nouveau_gem_object(struct drm_gem_object *gem)
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{
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return gem ? container_of(gem, struct nouveau_bo, bo.base) : NULL;
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}
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/* nouveau_gem.c */
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extern int nouveau_gem_new(struct nouveau_cli *, u64 size, int align,
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uint32_t domain, uint32_t tile_mode,
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uint32_t tile_flags, struct nouveau_bo **);
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extern void nouveau_gem_object_del(struct drm_gem_object *);
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extern int nouveau_gem_object_open(struct drm_gem_object *, struct drm_file *);
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extern void nouveau_gem_object_close(struct drm_gem_object *,
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struct drm_file *);
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extern int nouveau_gem_ioctl_new(struct drm_device *, void *,
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struct drm_file *);
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extern int nouveau_gem_ioctl_pushbuf(struct drm_device *, void *,
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struct drm_file *);
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extern int nouveau_gem_ioctl_cpu_prep(struct drm_device *, void *,
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struct drm_file *);
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extern int nouveau_gem_ioctl_cpu_fini(struct drm_device *, void *,
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struct drm_file *);
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extern int nouveau_gem_ioctl_info(struct drm_device *, void *,
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struct drm_file *);
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extern int nouveau_gem_prime_pin(struct drm_gem_object *);
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extern void nouveau_gem_prime_unpin(struct drm_gem_object *);
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extern struct sg_table *nouveau_gem_prime_get_sg_table(struct drm_gem_object *);
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extern struct drm_gem_object *nouveau_gem_prime_import_sg_table(
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struct drm_device *, struct dma_buf_attachment *, struct sg_table *);
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struct dma_buf *nouveau_gem_prime_export(struct drm_gem_object *gobj,
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int flags);
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#endif
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