Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 Advanced Micro Devices, Inc. |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 20 | * OTHER DEALINGS IN THE SOFTWARE. |
| 21 | * |
| 22 | * based on nouveau_prime.c |
| 23 | * |
| 24 | * Authors: Alex Deucher |
| 25 | */ |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 26 | #include <drm/drmP.h> |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 27 | |
| 28 | #include "radeon.h" |
David Howells | 760285e | 2012-10-02 18:01:07 +0100 | [diff] [blame] | 29 | #include <drm/radeon_drm.h> |
Maarten Lankhorst | b5e9c1a | 2014-01-09 11:03:14 +0100 | [diff] [blame] | 30 | #include <linux/dma-buf.h> |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 31 | |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 32 | struct sg_table *radeon_gem_prime_get_sg_table(struct drm_gem_object *obj) |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 33 | { |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 34 | struct radeon_bo *bo = gem_to_radeon_bo(obj); |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 35 | int npages = bo->tbo.num_pages; |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 36 | |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 37 | return drm_prime_pages_to_sg(bo->tbo.ttm->pages, npages); |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 38 | } |
| 39 | |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 40 | void *radeon_gem_prime_vmap(struct drm_gem_object *obj) |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 41 | { |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 42 | struct radeon_bo *bo = gem_to_radeon_bo(obj); |
Dave Airlie | 63bc620 | 2012-05-31 13:52:53 +0100 | [diff] [blame] | 43 | int ret; |
| 44 | |
Dave Airlie | 63bc620 | 2012-05-31 13:52:53 +0100 | [diff] [blame] | 45 | ret = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, |
| 46 | &bo->dma_buf_vmap); |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 47 | if (ret) |
Dave Airlie | 63bc620 | 2012-05-31 13:52:53 +0100 | [diff] [blame] | 48 | return ERR_PTR(ret); |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 49 | |
Dave Airlie | 63bc620 | 2012-05-31 13:52:53 +0100 | [diff] [blame] | 50 | return bo->dma_buf_vmap.virtual; |
| 51 | } |
| 52 | |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 53 | void radeon_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) |
Dave Airlie | 63bc620 | 2012-05-31 13:52:53 +0100 | [diff] [blame] | 54 | { |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 55 | struct radeon_bo *bo = gem_to_radeon_bo(obj); |
Dave Airlie | 63bc620 | 2012-05-31 13:52:53 +0100 | [diff] [blame] | 56 | |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 57 | ttm_bo_kunmap(&bo->dma_buf_vmap); |
Dave Airlie | 63bc620 | 2012-05-31 13:52:53 +0100 | [diff] [blame] | 58 | } |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 59 | |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 60 | struct drm_gem_object *radeon_gem_prime_import_sg_table(struct drm_device *dev, |
Maarten Lankhorst | b5e9c1a | 2014-01-09 11:03:14 +0100 | [diff] [blame] | 61 | struct dma_buf_attachment *attach, |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 62 | struct sg_table *sg) |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 63 | { |
Maarten Lankhorst | 831b696 | 2014-09-18 14:11:56 +0200 | [diff] [blame] | 64 | struct reservation_object *resv = attach->dmabuf->resv; |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 65 | struct radeon_device *rdev = dev->dev_private; |
| 66 | struct radeon_bo *bo; |
| 67 | int ret; |
| 68 | |
Maarten Lankhorst | 831b696 | 2014-09-18 14:11:56 +0200 | [diff] [blame] | 69 | ww_mutex_lock(&resv->lock, NULL); |
Maarten Lankhorst | b5e9c1a | 2014-01-09 11:03:14 +0100 | [diff] [blame] | 70 | ret = radeon_bo_create(rdev, attach->dmabuf->size, PAGE_SIZE, false, |
Maarten Lankhorst | 831b696 | 2014-09-18 14:11:56 +0200 | [diff] [blame] | 71 | RADEON_GEM_DOMAIN_GTT, 0, sg, resv, &bo); |
| 72 | ww_mutex_unlock(&resv->lock); |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 73 | if (ret) |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 74 | return ERR_PTR(ret); |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 75 | |
| 76 | mutex_lock(&rdev->gem.mutex); |
| 77 | list_add_tail(&bo->list, &rdev->gem.objects); |
| 78 | mutex_unlock(&rdev->gem.mutex); |
| 79 | |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 80 | return &bo->gem_base; |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 81 | } |
| 82 | |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 83 | int radeon_gem_prime_pin(struct drm_gem_object *obj) |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 84 | { |
| 85 | struct radeon_bo *bo = gem_to_radeon_bo(obj); |
| 86 | int ret = 0; |
| 87 | |
Dave Airlie | 489797d | 2012-06-12 16:10:39 +0100 | [diff] [blame] | 88 | ret = radeon_bo_reserve(bo, false); |
| 89 | if (unlikely(ret != 0)) |
Aaron Plattner | 1e6d17a | 2013-01-15 20:47:44 +0000 | [diff] [blame] | 90 | return ret; |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 91 | |
Dave Airlie | 489797d | 2012-06-12 16:10:39 +0100 | [diff] [blame] | 92 | /* pin buffer into GTT */ |
| 93 | ret = radeon_bo_pin(bo, RADEON_GEM_DOMAIN_GTT, NULL); |
Dave Airlie | 489797d | 2012-06-12 16:10:39 +0100 | [diff] [blame] | 94 | radeon_bo_unreserve(bo); |
Maarten Lankhorst | 280cf21 | 2013-06-27 13:38:18 +0200 | [diff] [blame] | 95 | return ret; |
| 96 | } |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 97 | |
Maarten Lankhorst | 280cf21 | 2013-06-27 13:38:18 +0200 | [diff] [blame] | 98 | void radeon_gem_prime_unpin(struct drm_gem_object *obj) |
| 99 | { |
| 100 | struct radeon_bo *bo = gem_to_radeon_bo(obj); |
| 101 | int ret = 0; |
| 102 | |
| 103 | ret = radeon_bo_reserve(bo, false); |
| 104 | if (unlikely(ret != 0)) |
| 105 | return; |
| 106 | |
| 107 | radeon_bo_unpin(bo); |
| 108 | radeon_bo_unreserve(bo); |
Alex Deucher | 40f5cf9 | 2012-05-10 18:33:13 -0400 | [diff] [blame] | 109 | } |
Maarten Lankhorst | 3aac450 | 2014-07-01 12:57:26 +0200 | [diff] [blame] | 110 | |
| 111 | |
| 112 | struct reservation_object *radeon_gem_prime_res_obj(struct drm_gem_object *obj) |
| 113 | { |
| 114 | struct radeon_bo *bo = gem_to_radeon_bo(obj); |
| 115 | |
| 116 | return bo->tbo.resv; |
| 117 | } |
Dave Airlie | 484048d | 2014-08-26 09:05:14 +1000 | [diff] [blame] | 118 | |
Christian König | f72a113a | 2014-08-07 09:36:00 +0200 | [diff] [blame] | 119 | struct dma_buf *radeon_gem_prime_export(struct drm_device *dev, |
| 120 | struct drm_gem_object *gobj, |
| 121 | int flags) |
| 122 | { |
| 123 | struct radeon_bo *bo = gem_to_radeon_bo(gobj); |
| 124 | if (radeon_ttm_tt_has_userptr(bo->tbo.ttm)) |
| 125 | return ERR_PTR(-EPERM); |
| 126 | return drm_gem_prime_export(dev, gobj, flags); |
| 127 | } |