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authorJakob Bornecrantz2010-01-07 21:00:56 -0600
committerJakob Bornecrantz2010-01-07 21:05:31 -0600
commitbfa44bb8610f51d84b8d23f8c5ce903689d239c6 (patch)
treea8b225bbfb2efe7e75e5330660d751397f569fa2 /libkms
parent9042d72109d8ae448b8e0f23b93067cc37deff23 (diff)
downloadexternal-libdrm-bfa44bb8610f51d84b8d23f8c5ce903689d239c6.tar.gz
external-libdrm-bfa44bb8610f51d84b8d23f8c5ce903689d239c6.tar.xz
external-libdrm-bfa44bb8610f51d84b8d23f8c5ce903689d239c6.zip
libkms: Add intel backend
Diffstat (limited to 'libkms')
-rw-r--r--libkms/Makefile.am1
-rw-r--r--libkms/api.c1
-rw-r--r--libkms/intel.c256
-rw-r--r--libkms/internal.h2
4 files changed, 260 insertions, 0 deletions
diff --git a/libkms/Makefile.am b/libkms/Makefile.am
index 1ecad774..23f78e08 100644
--- a/libkms/Makefile.am
+++ b/libkms/Makefile.am
@@ -10,6 +10,7 @@ libkms_la_LIBADD = \
10 10
11libkms_la_SOURCES = \ 11libkms_la_SOURCES = \
12 linux.c \ 12 linux.c \
13 intel.c \
13 api.c 14 api.c
14 15
15if HAVE_VMWGFX 16if HAVE_VMWGFX
diff --git a/libkms/api.c b/libkms/api.c
index 6cec4b96..12dcd9a1 100644
--- a/libkms/api.c
+++ b/libkms/api.c
@@ -40,6 +40,7 @@ struct create_record
40}; 40};
41 41
42static struct create_record table[] = { 42static struct create_record table[] = {
43 { 0x8086, 0x2a42, intel_create }, /* i965 */
43#ifdef HAVE_VMWGFX 44#ifdef HAVE_VMWGFX
44 { 0x15ad, 0x0405, vmwgfx_create }, /* VMware vGPU */ 45 { 0x15ad, 0x0405, vmwgfx_create }, /* VMware vGPU */
45#endif 46#endif
diff --git a/libkms/intel.c b/libkms/intel.c
new file mode 100644
index 00000000..6dd739d5
--- /dev/null
+++ b/libkms/intel.c
@@ -0,0 +1,256 @@
1/**************************************************************************
2 *
3 * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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.
25 *
26 **************************************************************************/
27
28
29#define HAVE_STDINT_H
30#define _FILE_OFFSET_BITS 64
31
32#include <errno.h>
33#include <stdio.h>
34#include <stdlib.h>
35#include <string.h>
36#include "internal.h"
37
38#include <sys/mman.h>
39#include <sys/ioctl.h>
40#include "xf86drm.h"
41
42#include "i915_drm.h"
43
44struct intel_bo
45{
46 struct kms_bo base;
47 unsigned handle;
48 unsigned map_count;
49 int mapped;
50};
51
52static int
53intel_get_prop(struct kms_driver *kms, unsigned key, unsigned *out)
54{
55 switch (key) {
56 case KMS_MAX_SCANOUT_WIDTH:
57 *out = 4096;
58 break;
59 case KMS_MAX_SCANOUT_HEIGHT:
60 *out = 4096;
61 break;
62 case KMS_MIN_SCANOUT_WIDTH:
63 *out = 1;
64 break;
65 case KMS_MIN_SCANOUT_HEIGHT:
66 *out = 1;
67 break;
68 case KMS_MAX_CURSOR_WIDTH:
69 *out = 64;
70 break;
71 case KMS_MAX_CURSOR_HEIGHT:
72 *out = 64;
73 break;
74 case KMS_MIN_CURSOR_WIDTH:
75 *out = 64;
76 break;
77 case KMS_MIN_CURSOR_HEIGHT:
78 *out = 64;
79 break;
80 default:
81 return -EINVAL;
82 }
83 return 0;
84}
85
86static int
87intel_destroy(struct kms_driver *kms)
88{
89 free(kms);
90 return 0;
91}
92
93static int
94intel_bo_create(struct kms_driver *kms,
95 const unsigned width, const unsigned height,
96 const enum kms_bo_type type, const unsigned *attr,
97 struct kms_bo **out)
98{
99 struct drm_i915_gem_create arg;
100 unsigned size, pitch;
101 struct intel_bo *bo;
102 int i, ret;
103
104 for (i = 0; attr[i]; i += 2) {
105 switch (attr[i]) {
106 case KMS_WIDTH:
107 case KMS_HEIGHT:
108 case KMS_BO_TYPE:
109 break;
110 default:
111 return -EINVAL;
112 }
113 }
114
115 bo = calloc(1, sizeof(*bo));
116 if (!bo)
117 return -ENOMEM;
118
119 if (type == KMS_BO_TYPE_CURSOR) {
120 pitch = 64 * 4;
121 size = 64 * 64 * 4;
122 } else if (type == KMS_BO_TYPE_SCANOUT) {
123 pitch = width * 4;
124 pitch = (pitch + 512 - 1) & ~(512 - 1);
125 size = pitch * ((height + 4 - 1) & ~(4 - 1));
126 } else {
127 return -EINVAL;
128 }
129
130 memset(&arg, 0, sizeof(arg));
131 arg.size = size;
132
133 ret = drmCommandWriteRead(kms->fd, DRM_I915_GEM_CREATE, &arg, sizeof(arg));
134 if (ret)
135 goto err_free;
136
137 bo->base.kms = kms;
138 bo->base.handle = arg.handle;
139 bo->base.size = size;
140 bo->base.pitch = pitch;
141
142 *out = &bo->base;
143 if (type == KMS_BO_TYPE_SCANOUT && pitch > 512) {
144 struct drm_i915_gem_set_tiling tile;
145
146 memset(&tile, 0, sizeof(tile));
147 tile.handle = bo->base.handle;
148 tile.tiling_mode = I915_TILING_X;
149 tile.stride = bo->base.pitch;
150
151 ret = drmCommandWriteRead(kms->fd, DRM_I915_GEM_SET_TILING, &tile, sizeof(tile));
152 if (ret != 0)
153 goto err_destroy;
154 }
155
156 return 0;
157
158err_destroy:
159 kms_bo_destroy(out);
160err_free:
161 free(bo);
162 return ret;
163}
164
165static int
166intel_bo_get_prop(struct kms_bo *bo, unsigned key, unsigned *out)
167{
168 switch (key) {
169 default:
170 return -EINVAL;
171 }
172}
173
174static int
175intel_bo_map(struct kms_bo *_bo, void **out)
176{
177 struct intel_bo *bo = (struct intel_bo *)_bo;
178 struct drm_i915_gem_mmap_gtt arg;
179 void *map = NULL;
180 int ret;
181
182 if (bo->base.ptr) {
183 bo->map_count++;
184 *out = bo->base.ptr;
185 return 0;
186 }
187
188 memset(&arg, 0, sizeof(arg));
189 arg.handle = bo->base.handle;
190
191 ret = drmCommandWriteRead(bo->base.kms->fd, DRM_I915_GEM_MMAP_GTT, &arg, sizeof(arg));
192 if (ret)
193 return ret;
194
195 map = mmap(0, bo->base.size, PROT_READ | PROT_WRITE, MAP_SHARED, bo->base.kms->fd, arg.offset);
196 if (map == MAP_FAILED)
197 return -errno;
198
199 bo->base.ptr = map;
200 bo->map_count++;
201 *out = bo->base.ptr;
202
203 return 0;
204}
205
206static int
207intel_bo_unmap(struct kms_bo *_bo)
208{
209 struct intel_bo *bo = (struct intel_bo *)_bo;
210 bo->map_count--;
211 return 0;
212}
213
214static int
215intel_bo_destroy(struct kms_bo *_bo)
216{
217 struct intel_bo *bo = (struct intel_bo *)_bo;
218 struct drm_gem_close arg;
219 int ret;
220
221 if (bo->base.ptr)
222 munmap(bo->base.ptr, bo->base.size);
223
224 memset(&arg, 0, sizeof(arg));
225 arg.handle = bo->base.handle;
226
227 ret = drmIoctl(bo->base.kms->fd, DRM_IOCTL_GEM_CLOSE, &arg);
228 if (ret)
229 return -errno;
230
231 free(bo);
232 return 0;
233}
234
235int
236intel_create(int fd, struct kms_driver **out)
237{
238 struct kms_driver *kms;
239
240 kms = calloc(1, sizeof(*kms));
241 if (!kms)
242 return -ENOMEM;
243
244 kms->fd = fd;
245
246 kms->bo_create = intel_bo_create;
247 kms->bo_map = intel_bo_map;
248 kms->bo_unmap = intel_bo_unmap;
249 kms->bo_get_prop = intel_bo_get_prop;
250 kms->bo_destroy = intel_bo_destroy;
251 kms->get_prop = intel_get_prop;
252 kms->destroy = intel_destroy;
253 *out = kms;
254
255 return 0;
256}
diff --git a/libkms/internal.h b/libkms/internal.h
index cdc27053..a441266b 100644
--- a/libkms/internal.h
+++ b/libkms/internal.h
@@ -66,4 +66,6 @@ int linux_get_pciid_from_fd(int fd, unsigned *vendor_id, unsigned *chip_id);
66 66
67int vmwgfx_create(int fd, struct kms_driver **out); 67int vmwgfx_create(int fd, struct kms_driver **out);
68 68
69int intel_create(int fd, struct kms_driver **out);
70
69#endif 71#endif