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[glsdk/libdrm.git] / intel / intel_bufmgr.c
1 /*
2  * Copyright © 2007 Intel Corporation
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 (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21  * IN THE SOFTWARE.
22  *
23  * Authors:
24  *    Eric Anholt <eric@anholt.net>
25  *
26  */
28 #ifdef HAVE_CONFIG_H
29 #include "config.h"
30 #endif
32 #include <string.h>
33 #include <stdlib.h>
34 #include <stdint.h>
35 #include <assert.h>
36 #include <errno.h>
37 #include <drm.h>
38 #include <i915_drm.h>
39 #include <pciaccess.h>
40 #include "intel_bufmgr.h"
41 #include "intel_bufmgr_priv.h"
42 #include "xf86drm.h"
44 /** @file intel_bufmgr.c
45  *
46  * Convenience functions for buffer management methods.
47  */
49 drm_intel_bo *drm_intel_bo_alloc(drm_intel_bufmgr *bufmgr, const char *name,
50                                  unsigned long size, unsigned int alignment)
51 {
52         return bufmgr->bo_alloc(bufmgr, name, size, alignment);
53 }
55 drm_intel_bo *drm_intel_bo_alloc_for_render(drm_intel_bufmgr *bufmgr,
56                                             const char *name,
57                                             unsigned long size,
58                                             unsigned int alignment)
59 {
60         return bufmgr->bo_alloc_for_render(bufmgr, name, size, alignment);
61 }
63 drm_intel_bo *
64 drm_intel_bo_alloc_tiled(drm_intel_bufmgr *bufmgr, const char *name,
65                         int x, int y, int cpp, uint32_t *tiling_mode,
66                         unsigned long *pitch, unsigned long flags)
67 {
68         return bufmgr->bo_alloc_tiled(bufmgr, name, x, y, cpp,
69                                       tiling_mode, pitch, flags);
70 }
72 void drm_intel_bo_reference(drm_intel_bo *bo)
73 {
74         bo->bufmgr->bo_reference(bo);
75 }
77 void drm_intel_bo_unreference(drm_intel_bo *bo)
78 {
79         if (bo == NULL)
80                 return;
82         bo->bufmgr->bo_unreference(bo);
83 }
85 int drm_intel_bo_map(drm_intel_bo *buf, int write_enable)
86 {
87         return buf->bufmgr->bo_map(buf, write_enable);
88 }
90 int drm_intel_bo_unmap(drm_intel_bo *buf)
91 {
92         return buf->bufmgr->bo_unmap(buf);
93 }
95 int
96 drm_intel_bo_subdata(drm_intel_bo *bo, unsigned long offset,
97                      unsigned long size, const void *data)
98 {
99         return bo->bufmgr->bo_subdata(bo, offset, size, data);
102 int
103 drm_intel_bo_get_subdata(drm_intel_bo *bo, unsigned long offset,
104                          unsigned long size, void *data)
106         int ret;
107         if (bo->bufmgr->bo_get_subdata)
108                 return bo->bufmgr->bo_get_subdata(bo, offset, size, data);
110         if (size == 0 || data == NULL)
111                 return 0;
113         ret = drm_intel_bo_map(bo, 0);
114         if (ret)
115                 return ret;
116         memcpy(data, (unsigned char *)bo->virtual + offset, size);
117         drm_intel_bo_unmap(bo);
118         return 0;
121 void drm_intel_bo_wait_rendering(drm_intel_bo *bo)
123         bo->bufmgr->bo_wait_rendering(bo);
126 void drm_intel_bufmgr_destroy(drm_intel_bufmgr *bufmgr)
128         bufmgr->destroy(bufmgr);
131 int
132 drm_intel_bo_exec(drm_intel_bo *bo, int used,
133                   drm_clip_rect_t * cliprects, int num_cliprects, int DR4)
135         return bo->bufmgr->bo_exec(bo, used, cliprects, num_cliprects, DR4);
138 int
139 drm_intel_bo_mrb_exec(drm_intel_bo *bo, int used,
140                 drm_clip_rect_t *cliprects, int num_cliprects, int DR4,
141                 unsigned int rings)
143         if (bo->bufmgr->bo_mrb_exec)
144                 return bo->bufmgr->bo_mrb_exec(bo, used,
145                                         cliprects, num_cliprects, DR4,
146                                         rings);
148         switch (rings) {
149         case I915_EXEC_DEFAULT:
150         case I915_EXEC_RENDER:
151                 return bo->bufmgr->bo_exec(bo, used,
152                                            cliprects, num_cliprects, DR4);
153         default:
154                 return -ENODEV;
155         }
158 void drm_intel_bufmgr_set_debug(drm_intel_bufmgr *bufmgr, int enable_debug)
160         bufmgr->debug = enable_debug;
163 int drm_intel_bufmgr_check_aperture_space(drm_intel_bo ** bo_array, int count)
165         return bo_array[0]->bufmgr->check_aperture_space(bo_array, count);
168 int drm_intel_bo_flink(drm_intel_bo *bo, uint32_t * name)
170         if (bo->bufmgr->bo_flink)
171                 return bo->bufmgr->bo_flink(bo, name);
173         return -ENODEV;
176 int
177 drm_intel_bo_emit_reloc(drm_intel_bo *bo, uint32_t offset,
178                         drm_intel_bo *target_bo, uint32_t target_offset,
179                         uint32_t read_domains, uint32_t write_domain)
181         return bo->bufmgr->bo_emit_reloc(bo, offset,
182                                          target_bo, target_offset,
183                                          read_domains, write_domain);
186 /* For fence registers, not GL fences */
187 int
188 drm_intel_bo_emit_reloc_fence(drm_intel_bo *bo, uint32_t offset,
189                               drm_intel_bo *target_bo, uint32_t target_offset,
190                               uint32_t read_domains, uint32_t write_domain)
192         return bo->bufmgr->bo_emit_reloc_fence(bo, offset,
193                                                target_bo, target_offset,
194                                                read_domains, write_domain);
198 int drm_intel_bo_pin(drm_intel_bo *bo, uint32_t alignment)
200         if (bo->bufmgr->bo_pin)
201                 return bo->bufmgr->bo_pin(bo, alignment);
203         return -ENODEV;
206 int drm_intel_bo_unpin(drm_intel_bo *bo)
208         if (bo->bufmgr->bo_unpin)
209                 return bo->bufmgr->bo_unpin(bo);
211         return -ENODEV;
214 int drm_intel_bo_set_tiling(drm_intel_bo *bo, uint32_t * tiling_mode,
215                             uint32_t stride)
217         if (bo->bufmgr->bo_set_tiling)
218                 return bo->bufmgr->bo_set_tiling(bo, tiling_mode, stride);
220         *tiling_mode = I915_TILING_NONE;
221         return 0;
224 int drm_intel_bo_get_tiling(drm_intel_bo *bo, uint32_t * tiling_mode,
225                             uint32_t * swizzle_mode)
227         if (bo->bufmgr->bo_get_tiling)
228                 return bo->bufmgr->bo_get_tiling(bo, tiling_mode, swizzle_mode);
230         *tiling_mode = I915_TILING_NONE;
231         *swizzle_mode = I915_BIT_6_SWIZZLE_NONE;
232         return 0;
235 int drm_intel_bo_disable_reuse(drm_intel_bo *bo)
237         if (bo->bufmgr->bo_disable_reuse)
238                 return bo->bufmgr->bo_disable_reuse(bo);
239         return 0;
242 int drm_intel_bo_is_reusable(drm_intel_bo *bo)
244         if (bo->bufmgr->bo_is_reusable)
245                 return bo->bufmgr->bo_is_reusable(bo);
246         return 0;
249 int drm_intel_bo_busy(drm_intel_bo *bo)
251         if (bo->bufmgr->bo_busy)
252                 return bo->bufmgr->bo_busy(bo);
253         return 0;
256 int drm_intel_bo_madvise(drm_intel_bo *bo, int madv)
258         if (bo->bufmgr->bo_madvise)
259                 return bo->bufmgr->bo_madvise(bo, madv);
260         return -1;
263 int drm_intel_bo_references(drm_intel_bo *bo, drm_intel_bo *target_bo)
265         return bo->bufmgr->bo_references(bo, target_bo);
268 int drm_intel_get_pipe_from_crtc_id(drm_intel_bufmgr *bufmgr, int crtc_id)
270         if (bufmgr->get_pipe_from_crtc_id)
271                 return bufmgr->get_pipe_from_crtc_id(bufmgr, crtc_id);
272         return -1;
275 static size_t
276 drm_intel_probe_agp_aperture_size(int fd)
278         struct pci_device *pci_dev;
279         size_t size = 0;
280         int ret;
282         ret = pci_system_init();
283         if (ret)
284                 goto err;
286         /* XXX handle multiple adaptors? */
287         pci_dev = pci_device_find_by_slot(0, 0, 2, 0);
288         if (pci_dev == NULL)
289                 goto err;
291         ret = pci_device_probe(pci_dev);
292         if (ret)
293                 goto err;
295         size = pci_dev->regions[2].size;
296 err:
297         pci_system_cleanup ();
298         return size;
301 int drm_intel_get_aperture_sizes(int fd,
302                                  size_t *mappable,
303                                  size_t *total)
306         struct drm_i915_gem_get_aperture aperture;
307         int ret;
309         ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture);
310         if (ret)
311                 return ret;
313         *mappable = 0;
314         /* XXX add a query for the kernel value? */
315         if (*mappable == 0)
316                 *mappable = drm_intel_probe_agp_aperture_size(fd);
317         if (*mappable == 0)
318                 *mappable = 64 * 1024 * 1024; /* minimum possible value */
319         *total = aperture.aper_size;
320         return 0;