2 * Copyright © 2009 Corbin Simpson
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
14 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
15 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
16 * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
17 * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
28 * Corbin Simpson <MostAwesomeDude@gmail.com>
29 * Joakim Sindholt <opensource@zhasha.com>
32 #include "radeon_drm.h"
33 #include "radeon_r300.h"
34 #include "radeon_buffer.h"
36 #include "r300_winsys.h"
37 #include "trace/tr_drm.h"
39 #include "util/u_memory.h"
42 #include <sys/ioctl.h>
44 /* Helper function to do the ioctls needed for setup and init. */
45 static void do_ioctls(int fd
, struct radeon_winsys
* winsys
)
47 struct drm_radeon_gem_info gem_info
= {0};
48 struct drm_radeon_info info
= {0};
51 drmVersionPtr version
;
53 info
.value
= (unsigned long)&target
;
55 /* We do things in a specific order here.
57 * DRM version first. We need to be sure we're running on a KMS chipset.
58 * This is also for some features.
60 * Then, the PCI ID. This is essential and should return usable numbers
61 * for all Radeons. If this fails, we probably got handed an FD for some
64 * The GB and Z pipe requests should always succeed, but they might not
65 * return sensical values for all chipsets, but that's alright because
66 * the pipe drivers already know that.
68 * The GEM info is actually bogus on the kernel side, as well as our side
69 * (see radeon_gem_info_ioctl in radeon_gem.c) but that's alright because
70 * we don't actually use the info for anything yet. */
72 version
= drmGetVersion(fd
);
73 if (version
->version_major
!= 2) {
74 fprintf(stderr
, "%s: DRM version is %d.%d.%d but this driver is "
75 "only compatible with 2.x.x\n", __FUNCTION__
,
76 version
->version_major
, version
->version_minor
,
77 version
->version_patchlevel
);
78 drmFreeVersion(version
);
82 info
.request
= RADEON_INFO_DEVICE_ID
;
83 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
85 fprintf(stderr
, "%s: Failed to get PCI ID, "
86 "error number %d\n", __FUNCTION__
, retval
);
89 winsys
->pci_id
= target
;
91 info
.request
= RADEON_INFO_NUM_GB_PIPES
;
92 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
94 fprintf(stderr
, "%s: Failed to get GB pipe count, "
95 "error number %d\n", __FUNCTION__
, retval
);
98 winsys
->gb_pipes
= target
;
100 info
.request
= RADEON_INFO_NUM_Z_PIPES
;
101 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
103 fprintf(stderr
, "%s: Failed to get Z pipe count, "
104 "error number %d\n", __FUNCTION__
, retval
);
107 winsys
->z_pipes
= target
;
109 retval
= drmCommandWriteRead(fd
, DRM_RADEON_GEM_INFO
,
110 &gem_info
, sizeof(gem_info
));
112 fprintf(stderr
, "%s: Failed to get MM info, error number %d\n",
113 __FUNCTION__
, retval
);
116 winsys
->gart_size
= gem_info
.gart_size
;
117 winsys
->vram_size
= gem_info
.vram_size
;
119 debug_printf("radeon: Successfully grabbed chipset info from kernel!\n"
120 "radeon: DRM version: %d.%d.%d ID: 0x%04x GB: %d Z: %d\n"
121 "radeon: GART size: %d MB VRAM size: %d MB\n",
122 version
->version_major
, version
->version_minor
,
123 version
->version_patchlevel
, winsys
->pci_id
,
124 winsys
->gb_pipes
, winsys
->z_pipes
,
125 winsys
->gart_size
/ 1024 / 1024,
126 winsys
->vram_size
/ 1024 / 1024);
128 drmFreeVersion(version
);
131 /* Create a pipe_screen. */
132 struct pipe_screen
* radeon_create_screen(struct drm_api
* api
,
134 struct drm_create_screen_arg
*arg
)
136 struct radeon_winsys
* rwinsys
= radeon_pipe_winsys(drmFB
);
137 do_ioctls(drmFB
, rwinsys
);
139 /* The state tracker can organize a softpipe fallback if no hw
142 if (is_r3xx(rwinsys
->pci_id
)) {
143 radeon_setup_winsys(drmFB
, rwinsys
);
144 return r300_create_screen(rwinsys
);
152 boolean
radeon_buffer_from_texture(struct drm_api
* api
,
153 struct pipe_screen
* screen
,
154 struct pipe_texture
* texture
,
155 struct pipe_buffer
** buffer
,
159 return r300_get_texture_buffer(screen
, texture
, buffer
, stride
);
162 /* Create a buffer from a handle. */
163 /* XXX what's up with name? */
164 struct pipe_buffer
* radeon_buffer_from_handle(struct drm_api
* api
,
165 struct pipe_screen
* screen
,
169 struct radeon_bo_manager
* bom
=
170 ((struct radeon_winsys
*)screen
->winsys
)->priv
->bom
;
171 struct radeon_pipe_buffer
* radeon_buffer
;
172 struct radeon_bo
* bo
= NULL
;
174 bo
= radeon_bo_open(bom
, handle
, 0, 0, 0, 0);
179 radeon_buffer
= CALLOC_STRUCT(radeon_pipe_buffer
);
180 if (radeon_buffer
== NULL
) {
185 pipe_reference_init(&radeon_buffer
->base
.reference
, 1);
186 radeon_buffer
->base
.screen
= screen
;
187 radeon_buffer
->base
.usage
= PIPE_BUFFER_USAGE_PIXEL
;
188 radeon_buffer
->bo
= bo
;
189 return &radeon_buffer
->base
;
192 static struct pipe_texture
*
193 radeon_texture_from_shared_handle(struct drm_api
*api
,
194 struct pipe_screen
*screen
,
195 struct pipe_texture
*templ
,
200 struct pipe_buffer
*buffer
;
201 struct pipe_texture
*blanket
;
203 buffer
= radeon_buffer_from_handle(api
, screen
, name
, handle
);
208 blanket
= screen
->texture_blanket(screen
, templ
, &stride
, buffer
);
210 pipe_buffer_reference(&buffer
, NULL
);
215 static boolean
radeon_shared_handle_from_texture(struct drm_api
*api
,
216 struct pipe_screen
*screen
,
217 struct pipe_texture
*texture
,
222 struct drm_gem_flink flink
;
223 struct radeon_pipe_buffer
* radeon_buffer
;
224 struct pipe_buffer
*buffer
= NULL
;
226 if (!radeon_buffer_from_texture(api
, screen
, texture
, &buffer
, stride
)) {
230 radeon_buffer
= (struct radeon_pipe_buffer
*)buffer
;
231 if (!radeon_buffer
->flinked
) {
232 fd
= ((struct radeon_winsys
*)screen
->winsys
)->priv
->fd
;
234 flink
.handle
= radeon_buffer
->bo
->handle
;
236 retval
= ioctl(fd
, DRM_IOCTL_GEM_FLINK
, &flink
);
238 debug_printf("radeon: DRM_IOCTL_GEM_FLINK failed, error %d\n",
243 radeon_buffer
->flink
= flink
.name
;
244 radeon_buffer
->flinked
= TRUE
;
247 *handle
= radeon_buffer
->flink
;
251 static boolean
radeon_local_handle_from_texture(struct drm_api
*api
,
252 struct pipe_screen
*screen
,
253 struct pipe_texture
*texture
,
257 struct pipe_buffer
*buffer
= NULL
;
258 if (!radeon_buffer_from_texture(api
, screen
, texture
, &buffer
, stride
)) {
262 *handle
= ((struct radeon_pipe_buffer
*)buffer
)->bo
->handle
;
264 pipe_buffer_reference(&buffer
, NULL
);
269 static void radeon_drm_api_destroy(struct drm_api
*api
)
274 struct drm_api drm_api_hooks
= {
276 .driver_name
= "radeon",
277 .create_screen
= radeon_create_screen
,
278 .texture_from_shared_handle
= radeon_texture_from_shared_handle
,
279 .shared_handle_from_texture
= radeon_shared_handle_from_texture
,
280 .local_handle_from_texture
= radeon_local_handle_from_texture
,
281 .destroy
= radeon_drm_api_destroy
,
284 struct drm_api
* drm_api_create()
287 return trace_drm_create(&drm_api_hooks
);
289 return &drm_api_hooks
;