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The goal is to enable testing of parts of drivers without depending on any particular kernel version or hardware being present. Simply set LD_PRELOAD=$PREFIX/lib/libv3d_drm_shim.so in your environment, and we'll fake a /dev/dri/renderD128 (or whatever the next available node is) using v3dv3. That node can then be used with the surfaceless or gbm EGL platforms. Acked-by: Iago Toral Quiroga <itoral@igalia.com>
70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/*
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* Copyright © 2018 Broadcom
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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 (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef DRM_SHIM_V3D_H
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#define DRM_SHIM_V3D_H
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#include "broadcom/common/v3d_device_info.h"
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#include "util/vma.h"
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struct drm_shim_fd;
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struct v3d_shim_device {
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struct v3d_hw *hw;
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struct v3d_device_info *devinfo;
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/* Base virtual address of the heap. */
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void *mem;
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/* Base hardware address of the heap. */
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uint32_t mem_base;
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/* Size of the heap. */
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size_t mem_size;
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/* Allocator for the GPU virtual addresses. */
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struct util_vma_heap heap;
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};
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extern struct v3d_shim_device v3d;
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struct v3d_bo {
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struct shim_bo base;
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uint64_t offset;
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void *sim_vaddr;
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void *gem_vaddr;
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};
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static inline struct v3d_bo *
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v3d_bo(struct shim_bo *bo)
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{
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return (struct v3d_bo *)bo;
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}
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struct v3d_bo *v3d_bo_lookup(struct shim_fd *shim_fd, int handle);
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int v3d_ioctl_wait_bo(int fd, unsigned long request, void *arg);
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int v3d_ioctl_mmap_bo(int fd, unsigned long request, void *arg);
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int v3d_ioctl_get_bo_offset(int fd, unsigned long request, void *arg);
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void v3d33_drm_shim_driver_init(void);
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void v3d41_drm_shim_driver_init(void);
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void v3d42_drm_shim_driver_init(void);
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#endif /* DRM_SHIM_V3D_H */
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