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"
34 /* Helper function to do the ioctls needed for setup and init. */
35 static void do_ioctls(int fd
, struct radeon_winsys
* winsys
)
37 struct drm_radeon_gem_info gem_info
= {0};
38 struct drm_radeon_info info
= {0};
42 info
.value
= (unsigned long)&target
;
44 /* We do things in a specific order here.
46 * First, the PCI ID. This is essential and should return usable numbers
47 * for all Radeons. If this fails, we probably got handed an FD for some
50 * The GB and Z pipe requests should always succeed, but they might not
51 * return sensical values for all chipsets, but that's alright because
52 * the pipe drivers already know that.
54 * The GEM info is actually bogus on the kernel side, as well as our side
55 * (see radeon_gem_info_ioctl in radeon_gem.c) but that's alright because
56 * we don't actually use the info for anything yet.
57 * XXX update the above when we can safely use vram_size instead of vram_visible */
58 info
.request
= RADEON_INFO_DEVICE_ID
;
59 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
61 fprintf(stderr
, "%s: Failed to get PCI ID, "
62 "error number %d\n", __FUNCTION__
, retval
);
65 winsys
->pci_id
= target
;
67 info
.request
= RADEON_INFO_NUM_GB_PIPES
;
68 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
70 fprintf(stderr
, "%s: Failed to get GB pipe count, "
71 "error number %d\n", __FUNCTION__
, retval
);
74 winsys
->gb_pipes
= target
;
76 info
.request
= RADEON_INFO_NUM_Z_PIPES
;
77 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
79 fprintf(stderr
, "%s: Failed to get Z pipe count, "
80 "error number %d\n", __FUNCTION__
, retval
);
83 winsys
->z_pipes
= target
;
85 retval
= drmCommandWriteRead(fd
, DRM_RADEON_GEM_INFO
,
86 &gem_info
, sizeof(gem_info
));
88 fprintf(stderr
, "%s: Failed to get MM info, error number %d\n",
89 __FUNCTION__
, retval
);
92 winsys
->gart_size
= gem_info
.gart_size
;
94 winsys
->vram_size
= gem_info
.vram_visible
;
97 /* Guess at whether this chipset should use r300g.
99 * I believe that this check is valid, but I haven't been exhaustive. */
100 static boolean
is_r3xx(int pciid
)
102 return (pciid
> 0x3150) && (pciid
< 0x796f);
105 /* Create a pipe_screen. */
106 struct pipe_screen
* radeon_create_screen(struct drm_api
* api
,
108 struct drm_create_screen_arg
*arg
)
110 struct radeon_winsys
* winsys
= radeon_pipe_winsys(drmFB
);
111 do_ioctls(drmFB
, winsys
);
113 if (debug_get_bool_option("RADEON_SOFTPIPE", FALSE
)) {
114 return softpipe_create_screen((struct pipe_winsys
*)winsys
);
116 radeon_setup_winsys(drmFB
, winsys
);
117 return r300_create_screen(winsys
);
121 /* Create a pipe_context. */
122 struct pipe_context
* radeon_create_context(struct drm_api
* api
,
123 struct pipe_screen
* screen
)
125 if (debug_get_bool_option("RADEON_SOFTPIPE", FALSE
)) {
126 return radeon_create_softpipe(screen
->winsys
);
128 return r300_create_context(screen
,
129 (struct radeon_winsys
*)screen
->winsys
);
133 boolean
radeon_buffer_from_texture(struct drm_api
* api
,
134 struct pipe_texture
* texture
,
135 struct pipe_buffer
** buffer
,
139 return r300_get_texture_buffer(texture
, buffer
, stride
);
142 /* Create a buffer from a handle. */
143 /* XXX what's up with name? */
144 struct pipe_buffer
* radeon_buffer_from_handle(struct drm_api
* api
,
145 struct pipe_screen
* screen
,
149 struct radeon_bo_manager
* bom
=
150 ((struct radeon_winsys
*)screen
->winsys
)->priv
->bom
;
151 struct radeon_pipe_buffer
* radeon_buffer
;
152 struct radeon_bo
* bo
= NULL
;
154 bo
= radeon_bo_open(bom
, handle
, 0, 0, 0, 0);
159 radeon_buffer
= CALLOC_STRUCT(radeon_pipe_buffer
);
160 if (radeon_buffer
== NULL
) {
165 pipe_reference_init(&radeon_buffer
->base
.reference
, 1);
166 radeon_buffer
->base
.screen
= screen
;
167 radeon_buffer
->base
.usage
= PIPE_BUFFER_USAGE_PIXEL
;
168 radeon_buffer
->bo
= bo
;
169 return &radeon_buffer
->base
;
172 static struct pipe_texture
*
173 radeon_texture_from_shared_handle(struct drm_api
*api
,
174 struct pipe_screen
*screen
,
175 struct pipe_texture
*templ
,
180 struct pipe_buffer
*buffer
;
181 struct pipe_texture
*blanket
;
183 buffer
= radeon_buffer_from_handle(api
, screen
, name
, handle
);
188 blanket
= screen
->texture_blanket(screen
, templ
, &stride
, buffer
);
190 pipe_buffer_reference(&buffer
, NULL
);
195 static boolean
radeon_shared_handle_from_texture(struct drm_api
*api
,
196 struct pipe_screen
*screen
,
197 struct pipe_texture
*texture
,
202 struct drm_gem_flink flink
;
203 struct radeon_pipe_buffer
* radeon_buffer
;
204 struct pipe_buffer
*buffer
;
206 if (!radeon_buffer_from_texture(api
, texture
, &buffer
, stride
)) {
210 radeon_buffer
= (struct radeon_pipe_buffer
*)buffer
;
211 if (!radeon_buffer
->flinked
) {
212 fd
= ((struct radeon_winsys
*)screen
->winsys
)->priv
->fd
;
214 flink
.handle
= radeon_buffer
->bo
->handle
;
216 retval
= ioctl(fd
, DRM_IOCTL_GEM_FLINK
, &flink
);
218 debug_printf("radeon: DRM_IOCTL_GEM_FLINK failed, error %d\n",
223 radeon_buffer
->flink
= flink
.name
;
224 radeon_buffer
->flinked
= TRUE
;
227 *handle
= radeon_buffer
->flink
;
231 static boolean
radeon_local_handle_from_texture(struct drm_api
*api
,
232 struct pipe_screen
*screen
,
233 struct pipe_texture
*texture
,
237 struct pipe_buffer
*buffer
;
238 if (!radeon_buffer_from_texture(api
, texture
, &buffer
, stride
)) {
242 *handle
= ((struct radeon_pipe_buffer
*)buffer
)->bo
->handle
;
244 pipe_buffer_reference(&buffer
, NULL
);
249 struct drm_api drm_api_hooks
= {
250 .create_screen
= radeon_create_screen
,
251 .create_context
= radeon_create_context
,
252 .texture_from_shared_handle
= radeon_texture_from_shared_handle
,
253 .shared_handle_from_texture
= radeon_shared_handle_from_texture
,
254 .local_handle_from_texture
= radeon_local_handle_from_texture
,
257 struct drm_api
* drm_api_create()
260 return trace_drm_create(&drm_api_hooks
);
262 return &drm_api_hooks
;