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 static struct radeon_libdrm_winsys
*
45 radeon_winsys_create(int fd
)
47 struct radeon_libdrm_winsys
*rws
;
49 rws
= CALLOC_STRUCT(radeon_libdrm_winsys
);
58 /* Helper function to do the ioctls needed for setup and init. */
59 static void do_ioctls(int fd
, struct radeon_libdrm_winsys
* winsys
)
61 struct drm_radeon_gem_info gem_info
= {0};
62 struct drm_radeon_info info
= {0};
65 drmVersionPtr version
;
67 info
.value
= (unsigned long)&target
;
69 /* We do things in a specific order here.
71 * DRM version first. We need to be sure we're running on a KMS chipset.
72 * This is also for some features.
74 * Then, the PCI ID. This is essential and should return usable numbers
75 * for all Radeons. If this fails, we probably got handed an FD for some
78 * The GB and Z pipe requests should always succeed, but they might not
79 * return sensical values for all chipsets, but that's alright because
80 * the pipe drivers already know that.
82 * The GEM info is actually bogus on the kernel side, as well as our side
83 * (see radeon_gem_info_ioctl in radeon_gem.c) but that's alright because
84 * we don't actually use the info for anything yet. */
86 version
= drmGetVersion(fd
);
87 if (version
->version_major
!= 2) {
88 fprintf(stderr
, "%s: DRM version is %d.%d.%d but this driver is "
89 "only compatible with 2.x.x\n", __FUNCTION__
,
90 version
->version_major
, version
->version_minor
,
91 version
->version_patchlevel
);
92 drmFreeVersion(version
);
96 /* XXX Remove this ifdef when libdrm version 2.4.19 becomes mandatory. */
97 #ifdef RADEON_BO_FLAGS_MICRO_TILE_SQUARE
98 // Supported since 2.1.0.
99 winsys
->squaretiling
= version
->version_major
> 2 ||
100 version
->version_minor
>= 1;
103 info
.request
= RADEON_INFO_DEVICE_ID
;
104 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
106 fprintf(stderr
, "%s: Failed to get PCI ID, "
107 "error number %d\n", __FUNCTION__
, retval
);
110 winsys
->pci_id
= target
;
112 info
.request
= RADEON_INFO_NUM_GB_PIPES
;
113 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
115 fprintf(stderr
, "%s: Failed to get GB pipe count, "
116 "error number %d\n", __FUNCTION__
, retval
);
119 winsys
->gb_pipes
= target
;
121 info
.request
= RADEON_INFO_NUM_Z_PIPES
;
122 retval
= drmCommandWriteRead(fd
, DRM_RADEON_INFO
, &info
, sizeof(info
));
124 fprintf(stderr
, "%s: Failed to get Z pipe count, "
125 "error number %d\n", __FUNCTION__
, retval
);
128 winsys
->z_pipes
= target
;
130 retval
= drmCommandWriteRead(fd
, DRM_RADEON_GEM_INFO
,
131 &gem_info
, sizeof(gem_info
));
133 fprintf(stderr
, "%s: Failed to get MM info, error number %d\n",
134 __FUNCTION__
, retval
);
137 winsys
->gart_size
= gem_info
.gart_size
;
138 winsys
->vram_size
= gem_info
.vram_size
;
140 debug_printf("radeon: Successfully grabbed chipset info from kernel!\n"
141 "radeon: DRM version: %d.%d.%d ID: 0x%04x GB: %d Z: %d\n"
142 "radeon: GART size: %d MB VRAM size: %d MB\n",
143 version
->version_major
, version
->version_minor
,
144 version
->version_patchlevel
, winsys
->pci_id
,
145 winsys
->gb_pipes
, winsys
->z_pipes
,
146 winsys
->gart_size
/ 1024 / 1024,
147 winsys
->vram_size
/ 1024 / 1024);
149 drmFreeVersion(version
);
152 /* Create a pipe_screen. */
153 struct pipe_screen
* radeon_create_screen(struct drm_api
* api
,
155 struct drm_create_screen_arg
*arg
)
157 struct radeon_libdrm_winsys
* rws
;
160 rws
= radeon_winsys_create(drmFB
);
164 do_ioctls(drmFB
, rws
);
166 /* The state tracker can organize a softpipe fallback if no hw
169 if (is_r3xx(rws
->pci_id
)) {
170 ret
= radeon_setup_winsys(drmFB
, rws
);
173 return r300_create_screen(&rws
->base
);
181 static void radeon_drm_api_destroy(struct drm_api
*api
)
186 struct drm_api drm_api_hooks
= {
188 .driver_name
= "radeon",
189 .create_screen
= radeon_create_screen
,
190 .destroy
= radeon_drm_api_destroy
,
193 struct drm_api
* drm_api_create()
196 return trace_drm_create(&drm_api_hooks
);
198 return &drm_api_hooks
;