cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/radeon/radeon_prime.c

/*
 * Copyright 2012 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * based on nouveau_prime.c
 *
 * Authors: Alex Deucher
 */
#include <drm/drmP.h>

#include "radeon.h"
#include <drm/radeon_drm.h>
#include <linux/dma-buf.h>


struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object *obj) { struct radeon_bo *bo = gem_to_radeon_bo(obj); int npages = bo->tbo.num_pages; return drm_prime_pages_to_sg(bo->tbo.ttm->pages, npages); }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher3577.78%133.33%
Aaron Plattner817.78%133.33%
Dave Airlie24.44%133.33%
Total45100.00%3100.00%


void *radeon_gem_prime_vmap(struct drm_gem_object *obj) { struct radeon_bo *bo = gem_to_radeon_bo(obj); int ret; ret = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->dma_buf_vmap); if (ret) return ERR_PTR(ret); return bo->dma_buf_vmap.virtual; }

Contributors

PersonTokensPropCommitsCommitProp
Dave Airlie5890.62%150.00%
Aaron Plattner69.38%150.00%
Total64100.00%2100.00%


void radeon_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) { struct radeon_bo *bo = gem_to_radeon_bo(obj); ttm_bo_kunmap(&bo->dma_buf_vmap); }

Contributors

PersonTokensPropCommitsCommitProp
Dave Airlie2475.00%150.00%
Aaron Plattner825.00%150.00%
Total32100.00%2100.00%


struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *sg) { struct reservation_object *resv = attach->dmabuf->resv; struct radeon_device *rdev = dev->dev_private; struct radeon_bo *bo; int ret; ww_mutex_lock(&resv->lock, NULL); ret = radeon_bo_create(rdev, attach->dmabuf->size, PAGE_SIZE, false, RADEON_GEM_DOMAIN_GTT, 0, sg, resv, &bo); ww_mutex_unlock(&resv->lock); if (ret) return ERR_PTR(ret); mutex_lock(&rdev->gem.mutex); list_add_tail(&bo->list, &rdev->gem.objects); mutex_unlock(&rdev->gem.mutex); return &bo->gem_base; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher9363.27%120.00%
Maarten Lankhorst3926.53%240.00%
Aaron Plattner138.84%120.00%
Michel Dänzer21.36%120.00%
Total147100.00%5100.00%


int radeon_gem_prime_pin(struct drm_gem_object *obj) { struct radeon_bo *bo = gem_to_radeon_bo(obj); int ret = 0; ret = radeon_bo_reserve(bo, false); if (unlikely(ret != 0)) return ret; /* pin buffer into GTT */ ret = radeon_bo_pin(bo, RADEON_GEM_DOMAIN_GTT, NULL); radeon_bo_unreserve(bo); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher3756.06%133.33%
Dave Airlie2740.91%133.33%
Aaron Plattner23.03%133.33%
Total66100.00%3100.00%


void radeon_gem_prime_unpin(struct drm_gem_object *obj) { struct radeon_bo *bo = gem_to_radeon_bo(obj); int ret = 0; ret = radeon_bo_reserve(bo, false); if (unlikely(ret != 0)) return; radeon_bo_unpin(bo); radeon_bo_unreserve(bo); }

Contributors

PersonTokensPropCommitsCommitProp
Maarten Lankhorst4888.89%125.00%
Dave Airlie47.41%125.00%
Alex Deucher11.85%125.00%
Aaron Plattner11.85%125.00%
Total54100.00%4100.00%


struct reservation_object *radeon_gem_prime_res_obj(struct drm_gem_object *obj) { struct radeon_bo *bo = gem_to_radeon_bo(obj); return bo->tbo.resv; }

Contributors

PersonTokensPropCommitsCommitProp
Maarten Lankhorst29100.00%1100.00%
Total29100.00%1100.00%


struct dma_buf *radeon_gem_prime_export(struct drm_device *dev, struct drm_gem_object *gobj, int flags) { struct radeon_bo *bo = gem_to_radeon_bo(gobj); if (radeon_ttm_tt_has_userptr(bo->tbo.ttm)) return ERR_PTR(-EPERM); return drm_gem_prime_export(dev, gobj, flags); }

Contributors

PersonTokensPropCommitsCommitProp
Christian König58100.00%1100.00%
Total58100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Alex Deucher17434.25%18.33%
Maarten Lankhorst11923.43%433.33%
Dave Airlie11522.64%325.00%
Christian König5811.42%18.33%
Aaron Plattner387.48%18.33%
Michel Dänzer20.39%18.33%
David Howells20.39%18.33%
Total508100.00%12100.00%
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