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 "softpipe/sp_winsys.h"
34 #include "radeon_drm.h"
36 /* Helper function to do the ioctls needed for setup and init. */
37 static void do_ioctls(int fd
, struct radeon_winsys
* winsys
)
39 struct drm_radeon_gem_info gem_info
= {0};
40 struct drm_radeon_info info
= {0};
44 info
.value
= (unsigned long)&target
;
46 /* We do things in a specific order here.
48 * First, the PCI ID. This is essential and should return usable numbers
49 * for all Radeons. If this fails, we probably got handed an FD for some
52 * The GB and Z pipe requests should always succeed, but they might not
53 * return sensical values for all chipsets, but that's alright because
54 * the pipe drivers already know that.
56 * The GEM info is actually bogus on the kernel side, as well as our side
57 * (see radeon_gem_info_ioctl in radeon_gem.c) but that's alright because
58 * we don't actually use the info for anything yet.
59 * XXX update the above when we can safely use vram_size instead of vram_visible */
60 info
.request
= RADEON_INFO_DEVICE_ID
;
61 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
63 fprintf(stderr
, "%s: Failed to get PCI ID, "
64 "error number %d\n", __FUNCTION__
, retval
);
67 winsys
->pci_id
= target
;
69 info
.request
= RADEON_INFO_NUM_GB_PIPES
;
70 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
72 fprintf(stderr
, "%s: Failed to get GB pipe count, "
73 "error number %d\n", __FUNCTION__
, retval
);
76 winsys
->gb_pipes
= target
;
78 info
.request
= RADEON_INFO_NUM_Z_PIPES
;
79 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
81 fprintf(stderr
, "%s: Failed to get Z pipe count, "
82 "error number %d\n", __FUNCTION__
, retval
);
85 winsys
->z_pipes
= target
;
87 retval
= drmCommandWriteRead(fd
, DRM_RADEON_GEM_INFO
,
88 &gem_info
, sizeof(gem_info
));
90 fprintf(stderr
, "%s: Failed to get MM info, error number %d\n",
91 __FUNCTION__
, retval
);
94 winsys
->gart_size
= gem_info
.gart_size
;
96 winsys
->vram_size
= gem_info
.vram_visible
;
99 /* Guess at whether this chipset should use r300g.
101 * I believe that this check is valid, but I haven't been exhaustive. */
102 static boolean
is_r3xx(int pciid
)
104 return (pciid
> 0x3150) && (pciid
< 0x796f);
107 /* Create a pipe_screen. */
108 struct pipe_screen
* radeon_create_screen(struct drm_api
* api
,
110 struct drm_create_screen_arg
*arg
)
112 struct radeon_winsys
* rwinsys
= radeon_pipe_winsys(drmFB
);
113 do_ioctls(drmFB
, rwinsys
);
115 if (!is_r3xx(rwinsys
->pci_id
) ||
116 debug_get_bool_option("RADEON_SOFTPIPE", FALSE
)) {
117 return softpipe_create_screen((struct pipe_winsys
*)rwinsys
);
119 radeon_setup_winsys(drmFB
, rwinsys
);
120 return r300_create_screen(rwinsys
);
124 /* Create a pipe_context. */
125 struct pipe_context
* radeon_create_context(struct drm_api
* api
,
126 struct pipe_screen
* screen
)
128 struct radeon_winsys
* rwinsys
= (struct radeon_winsys
*)screen
->winsys
;
130 if (!is_r3xx(rwinsys
->pci_id
) ||
131 debug_get_bool_option("RADEON_SOFTPIPE", FALSE
)) {
132 return softpipe_create(screen
);
134 return r300_create_context(screen
, rwinsys
);
138 boolean
radeon_buffer_from_texture(struct drm_api
* api
,
139 struct pipe_texture
* texture
,
140 struct pipe_buffer
** buffer
,
144 return r300_get_texture_buffer(texture
, buffer
, stride
);
147 /* Create a buffer from a handle. */
148 /* XXX what's up with name? */
149 struct pipe_buffer
* radeon_buffer_from_handle(struct drm_api
* api
,
150 struct pipe_screen
* screen
,
154 struct radeon_bo_manager
* bom
=
155 ((struct radeon_winsys
*)screen
->winsys
)->priv
->bom
;
156 struct radeon_pipe_buffer
* radeon_buffer
;
157 struct radeon_bo
* bo
= NULL
;
159 bo
= radeon_bo_open(bom
, handle
, 0, 0, 0, 0);
164 radeon_buffer
= CALLOC_STRUCT(radeon_pipe_buffer
);
165 if (radeon_buffer
== NULL
) {
170 pipe_reference_init(&radeon_buffer
->base
.reference
, 1);
171 radeon_buffer
->base
.screen
= screen
;
172 radeon_buffer
->base
.usage
= PIPE_BUFFER_USAGE_PIXEL
;
173 radeon_buffer
->bo
= bo
;
174 return &radeon_buffer
->base
;
177 static struct pipe_texture
*
178 radeon_texture_from_shared_handle(struct drm_api
*api
,
179 struct pipe_screen
*screen
,
180 struct pipe_texture
*templ
,
185 struct pipe_buffer
*buffer
;
186 struct pipe_texture
*blanket
;
188 buffer
= radeon_buffer_from_handle(api
, screen
, name
, handle
);
193 blanket
= screen
->texture_blanket(screen
, templ
, &stride
, buffer
);
195 pipe_buffer_reference(&buffer
, NULL
);
200 static boolean
radeon_shared_handle_from_texture(struct drm_api
*api
,
201 struct pipe_screen
*screen
,
202 struct pipe_texture
*texture
,
207 struct drm_gem_flink flink
;
208 struct radeon_pipe_buffer
* radeon_buffer
;
209 struct pipe_buffer
*buffer
;
211 if (!radeon_buffer_from_texture(api
, texture
, &buffer
, stride
)) {
215 radeon_buffer
= (struct radeon_pipe_buffer
*)buffer
;
216 if (!radeon_buffer
->flinked
) {
217 fd
= ((struct radeon_winsys
*)screen
->winsys
)->priv
->fd
;
219 flink
.handle
= radeon_buffer
->bo
->handle
;
221 retval
= ioctl(fd
, DRM_IOCTL_GEM_FLINK
, &flink
);
223 debug_printf("radeon: DRM_IOCTL_GEM_FLINK failed, error %d\n",
228 radeon_buffer
->flink
= flink
.name
;
229 radeon_buffer
->flinked
= TRUE
;
232 *handle
= radeon_buffer
->flink
;
236 static boolean
radeon_local_handle_from_texture(struct drm_api
*api
,
237 struct pipe_screen
*screen
,
238 struct pipe_texture
*texture
,
242 struct pipe_buffer
*buffer
;
243 if (!radeon_buffer_from_texture(api
, texture
, &buffer
, stride
)) {
247 *handle
= ((struct radeon_pipe_buffer
*)buffer
)->bo
->handle
;
249 pipe_buffer_reference(&buffer
, NULL
);
254 struct drm_api drm_api_hooks
= {
255 .create_screen
= radeon_create_screen
,
256 .create_context
= radeon_create_context
,
257 .texture_from_shared_handle
= radeon_texture_from_shared_handle
,
258 .shared_handle_from_texture
= radeon_shared_handle_from_texture
,
259 .local_handle_from_texture
= radeon_local_handle_from_texture
,
262 struct drm_api
* drm_api_create()
265 return trace_drm_create(&drm_api_hooks
);
267 return &drm_api_hooks
;