1 /**************************************************************************
3 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24 * USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
30 #define _FILE_OFFSET_BITS 64
39 #include <sys/ioctl.h>
51 intel_get_prop(struct kms_driver *kms, unsigned key, unsigned *out)
55 *out = KMS_BO_TYPE_SCANOUT_X8R8G8B8 | KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8;
64 intel_destroy(struct kms_driver *kms)
71 intel_bo_create(struct kms_driver *kms,
72 const unsigned width, const unsigned height,
73 const enum kms_bo_type type, const unsigned *attr,
76 struct drm_i915_gem_create arg;
81 for (i = 0; attr[i]; i += 2) {
92 bo = calloc(1, sizeof(*bo));
96 if (type == KMS_BO_TYPE_CURSOR_64X64_A8R8G8B8) {
99 } else if (type == KMS_BO_TYPE_SCANOUT_X8R8G8B8) {
101 pitch = (pitch + 512 - 1) & ~(512 - 1);
102 size = pitch * ((height + 4 - 1) & ~(4 - 1));
108 memset(&arg, 0, sizeof(arg));
111 ret = drmCommandWriteRead(kms->fd, DRM_I915_GEM_CREATE, &arg, sizeof(arg));
116 bo->base.handle = arg.handle;
117 bo->base.size = size;
118 bo->base.pitch = pitch;
121 if (type == KMS_BO_TYPE_SCANOUT_X8R8G8B8 && pitch > 512) {
122 struct drm_i915_gem_set_tiling tile;
124 memset(&tile, 0, sizeof(tile));
125 tile.handle = bo->base.handle;
126 tile.tiling_mode = I915_TILING_X;
127 tile.stride = bo->base.pitch;
129 ret = drmCommandWriteRead(kms->fd, DRM_I915_GEM_SET_TILING, &tile, sizeof(tile));
146 intel_bo_get_prop(struct kms_bo *bo, unsigned key, unsigned *out)
155 intel_bo_map(struct kms_bo *_bo, void **out)
157 struct intel_bo *bo = (struct intel_bo *)_bo;
158 struct drm_i915_gem_mmap_gtt arg;
168 memset(&arg, 0, sizeof(arg));
169 arg.handle = bo->base.handle;
171 ret = drmCommandWriteRead(bo->base.kms->fd, DRM_I915_GEM_MMAP_GTT, &arg, sizeof(arg));
175 map = mmap(0, bo->base.size, PROT_READ | PROT_WRITE, MAP_SHARED, bo->base.kms->fd, arg.offset);
176 if (map == MAP_FAILED)
187 intel_bo_unmap(struct kms_bo *_bo)
189 struct intel_bo *bo = (struct intel_bo *)_bo;
195 intel_bo_destroy(struct kms_bo *_bo)
197 struct intel_bo *bo = (struct intel_bo *)_bo;
198 struct drm_gem_close arg;
202 /* XXX Sanity check map_count */
203 munmap(bo->base.ptr, bo->base.size);
207 memset(&arg, 0, sizeof(arg));
208 arg.handle = bo->base.handle;
210 ret = drmIoctl(bo->base.kms->fd, DRM_IOCTL_GEM_CLOSE, &arg);
219 intel_create(int fd, struct kms_driver **out)
221 struct kms_driver *kms;
223 kms = calloc(1, sizeof(*kms));
229 kms->bo_create = intel_bo_create;
230 kms->bo_map = intel_bo_map;
231 kms->bo_unmap = intel_bo_unmap;
232 kms->bo_get_prop = intel_bo_get_prop;
233 kms->bo_destroy = intel_bo_destroy;
234 kms->get_prop = intel_get_prop;
235 kms->destroy = intel_destroy;