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1/*
2 * Copyright © 2007 David Airlie
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * David Airlie
25 */
26#include <linux/module.h>
27#include <linux/slab.h>
28#include <linux/fb.h>
29
30#include <drm/drmP.h>
31#include <drm/drm_crtc.h>
32#include <drm/drm_crtc_helper.h>
33#include <drm/radeon_drm.h>
34#include "radeon.h"
35
36#include <drm/drm_fb_helper.h>
37
38#include <linux/vga_switcheroo.h>
39
40/* object hierarchy -
41 * this contains a helper + a radeon fb
42 * the helper contains a pointer to radeon framebuffer baseclass.
43 */
44struct radeon_fbdev {
45 struct drm_fb_helper helper;
46 struct radeon_framebuffer rfb;
47 struct radeon_device *rdev;
48};
49
50static struct fb_ops radeonfb_ops = {
51 .owner = THIS_MODULE,
52 .fb_check_var = drm_fb_helper_check_var,
53 .fb_set_par = drm_fb_helper_set_par,
54 .fb_fillrect = drm_fb_helper_cfb_fillrect,
55 .fb_copyarea = drm_fb_helper_cfb_copyarea,
56 .fb_imageblit = drm_fb_helper_cfb_imageblit,
57 .fb_pan_display = drm_fb_helper_pan_display,
58 .fb_blank = drm_fb_helper_blank,
59 .fb_setcmap = drm_fb_helper_setcmap,
60 .fb_debug_enter = drm_fb_helper_debug_enter,
61 .fb_debug_leave = drm_fb_helper_debug_leave,
62};
63
64
65int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled)
66{
67 int aligned = width;
68 int align_large = (ASIC_IS_AVIVO(rdev)) || tiled;
69 int pitch_mask = 0;
70
71 switch (bpp / 8) {
72 case 1:
73 pitch_mask = align_large ? 255 : 127;
74 break;
75 case 2:
76 pitch_mask = align_large ? 127 : 31;
77 break;
78 case 3:
79 case 4:
80 pitch_mask = align_large ? 63 : 15;
81 break;
82 }
83
84 aligned += pitch_mask;
85 aligned &= ~pitch_mask;
86 return aligned;
87}
88
89static void radeonfb_destroy_pinned_object(struct drm_gem_object *gobj)
90{
91 struct radeon_bo *rbo = gem_to_radeon_bo(gobj);
92 int ret;
93
94 ret = radeon_bo_reserve(rbo, false);
95 if (likely(ret == 0)) {
96 radeon_bo_kunmap(rbo);
97 radeon_bo_unpin(rbo);
98 radeon_bo_unreserve(rbo);
99 }
100 drm_gem_object_unreference_unlocked(gobj);
101}
102
103static int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev,
104 struct drm_mode_fb_cmd2 *mode_cmd,
105 struct drm_gem_object **gobj_p)
106{
107 struct radeon_device *rdev = rfbdev->rdev;
108 struct drm_gem_object *gobj = NULL;
109 struct radeon_bo *rbo = NULL;
110 bool fb_tiled = false; /* useful for testing */
111 u32 tiling_flags = 0;
112 int ret;
113 int aligned_size, size;
114 int height = mode_cmd->height;
115 u32 bpp, depth;
116
117 drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
118
119 /* need to align pitch with crtc limits */
120 mode_cmd->pitches[0] = radeon_align_pitch(rdev, mode_cmd->width, bpp,
121 fb_tiled) * ((bpp + 1) / 8);
122
123 if (rdev->family >= CHIP_R600)
124 height = ALIGN(mode_cmd->height, 8);
125 size = mode_cmd->pitches[0] * height;
126 aligned_size = ALIGN(size, PAGE_SIZE);
127 ret = radeon_gem_object_create(rdev, aligned_size, 0,
128 RADEON_GEM_DOMAIN_VRAM,
129 0, true, &gobj);
130 if (ret) {
131 printk(KERN_ERR "failed to allocate framebuffer (%d)\n",
132 aligned_size);
133 return -ENOMEM;
134 }
135 rbo = gem_to_radeon_bo(gobj);
136
137 if (fb_tiled)
138 tiling_flags = RADEON_TILING_MACRO;
139
140#ifdef __BIG_ENDIAN
141 switch (bpp) {
142 case 32:
143 tiling_flags |= RADEON_TILING_SWAP_32BIT;
144 break;
145 case 16:
146 tiling_flags |= RADEON_TILING_SWAP_16BIT;
147 default:
148 break;
149 }
150#endif
151
152 if (tiling_flags) {
153 ret = radeon_bo_set_tiling_flags(rbo,
154 tiling_flags | RADEON_TILING_SURFACE,
155 mode_cmd->pitches[0]);
156 if (ret)
157 dev_err(rdev->dev, "FB failed to set tiling flags\n");
158 }
159
160
161 ret = radeon_bo_reserve(rbo, false);
162 if (unlikely(ret != 0))
163 goto out_unref;
164 /* Only 27 bit offset for legacy CRTC */
165 ret = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM,
166 ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27,
167 NULL);
168 if (ret) {
169 radeon_bo_unreserve(rbo);
170 goto out_unref;
171 }
172 if (fb_tiled)
173 radeon_bo_check_tiling(rbo, 0, 0);
174 ret = radeon_bo_kmap(rbo, NULL);
175 radeon_bo_unreserve(rbo);
176 if (ret) {
177 goto out_unref;
178 }
179
180 *gobj_p = gobj;
181 return 0;
182out_unref:
183 radeonfb_destroy_pinned_object(gobj);
184 *gobj_p = NULL;
185 return ret;
186}
187
188static int radeonfb_create(struct drm_fb_helper *helper,
189 struct drm_fb_helper_surface_size *sizes)
190{
191 struct radeon_fbdev *rfbdev =
192 container_of(helper, struct radeon_fbdev, helper);
193 struct radeon_device *rdev = rfbdev->rdev;
194 struct fb_info *info;
195 struct drm_framebuffer *fb = NULL;
196 struct drm_mode_fb_cmd2 mode_cmd;
197 struct drm_gem_object *gobj = NULL;
198 struct radeon_bo *rbo = NULL;
199 int ret;
200 unsigned long tmp;
201
202 mode_cmd.width = sizes->surface_width;
203 mode_cmd.height = sizes->surface_height;
204
205 /* avivo can't scanout real 24bpp */
206 if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev))
207 sizes->surface_bpp = 32;
208
209 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
210 sizes->surface_depth);
211
212 ret = radeonfb_create_pinned_object(rfbdev, &mode_cmd, &gobj);
213 if (ret) {
214 DRM_ERROR("failed to create fbcon object %d\n", ret);
215 return ret;
216 }
217
218 rbo = gem_to_radeon_bo(gobj);
219
220 /* okay we have an object now allocate the framebuffer */
221 info = drm_fb_helper_alloc_fbi(helper);
222 if (IS_ERR(info)) {
223 ret = PTR_ERR(info);
224 goto out_unref;
225 }
226
227 info->par = rfbdev;
228 info->skip_vt_switch = true;
229
230 ret = radeon_framebuffer_init(rdev->ddev, &rfbdev->rfb, &mode_cmd, gobj);
231 if (ret) {
232 DRM_ERROR("failed to initialize framebuffer %d\n", ret);
233 goto out_destroy_fbi;
234 }
235
236 fb = &rfbdev->rfb.base;
237
238 /* setup helper */
239 rfbdev->helper.fb = fb;
240
241 memset_io(rbo->kptr, 0x0, radeon_bo_size(rbo));
242
243 strcpy(info->fix.id, "radeondrmfb");
244
245 drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
246
247 info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
248 info->fbops = &radeonfb_ops;
249
250 tmp = radeon_bo_gpu_offset(rbo) - rdev->mc.vram_start;
251 info->fix.smem_start = rdev->mc.aper_base + tmp;
252 info->fix.smem_len = radeon_bo_size(rbo);
253 info->screen_base = rbo->kptr;
254 info->screen_size = radeon_bo_size(rbo);
255
256 drm_fb_helper_fill_var(info, &rfbdev->helper, sizes->fb_width, sizes->fb_height);
257
258 /* setup aperture base/size for vesafb takeover */
259 info->apertures->ranges[0].base = rdev->ddev->mode_config.fb_base;
260 info->apertures->ranges[0].size = rdev->mc.aper_size;
261
262 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
263
264 if (info->screen_base == NULL) {
265 ret = -ENOSPC;
266 goto out_destroy_fbi;
267 }
268
269 DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start);
270 DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base);
271 DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo));
272 DRM_INFO("fb depth is %d\n", fb->depth);
273 DRM_INFO(" pitch is %d\n", fb->pitches[0]);
274
275 vga_switcheroo_client_fb_set(rdev->ddev->pdev, info);
276 return 0;
277
278out_destroy_fbi:
279 drm_fb_helper_release_fbi(helper);
280out_unref:
281 if (rbo) {
282
283 }
284 if (fb && ret) {
285 drm_gem_object_unreference_unlocked(gobj);
286 drm_framebuffer_unregister_private(fb);
287 drm_framebuffer_cleanup(fb);
288 kfree(fb);
289 }
290 return ret;
291}
292
293void radeon_fb_output_poll_changed(struct radeon_device *rdev)
294{
295 if (rdev->mode_info.rfbdev)
296 drm_fb_helper_hotplug_event(&rdev->mode_info.rfbdev->helper);
297}
298
299static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfbdev)
300{
301 struct radeon_framebuffer *rfb = &rfbdev->rfb;
302
303 drm_fb_helper_unregister_fbi(&rfbdev->helper);
304 drm_fb_helper_release_fbi(&rfbdev->helper);
305
306 if (rfb->obj) {
307 radeonfb_destroy_pinned_object(rfb->obj);
308 rfb->obj = NULL;
309 }
310 drm_fb_helper_fini(&rfbdev->helper);
311 drm_framebuffer_unregister_private(&rfb->base);
312 drm_framebuffer_cleanup(&rfb->base);
313
314 return 0;
315}
316
317static const struct drm_fb_helper_funcs radeon_fb_helper_funcs = {
318 .gamma_set = radeon_crtc_fb_gamma_set,
319 .gamma_get = radeon_crtc_fb_gamma_get,
320 .fb_probe = radeonfb_create,
321};
322
323int radeon_fbdev_init(struct radeon_device *rdev)
324{
325 struct radeon_fbdev *rfbdev;
326 int bpp_sel = 32;
327 int ret;
328
329 /* don't enable fbdev if no connectors */
330 if (list_empty(&rdev->ddev->mode_config.connector_list))
331 return 0;
332
333 /* select 8 bpp console on RN50 or 16MB cards */
334 if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32*1024*1024))
335 bpp_sel = 8;
336
337 rfbdev = kzalloc(sizeof(struct radeon_fbdev), GFP_KERNEL);
338 if (!rfbdev)
339 return -ENOMEM;
340
341 rfbdev->rdev = rdev;
342 rdev->mode_info.rfbdev = rfbdev;
343
344 drm_fb_helper_prepare(rdev->ddev, &rfbdev->helper,
345 &radeon_fb_helper_funcs);
346
347 ret = drm_fb_helper_init(rdev->ddev, &rfbdev->helper,
348 rdev->num_crtc,
349 RADEONFB_CONN_LIMIT);
350 if (ret)
351 goto free;
352
353 ret = drm_fb_helper_single_add_all_connectors(&rfbdev->helper);
354 if (ret)
355 goto fini;
356
357 /* disable all the possible outputs/crtcs before entering KMS mode */
358 drm_helper_disable_unused_functions(rdev->ddev);
359
360 ret = drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel);
361 if (ret)
362 goto fini;
363
364 return 0;
365
366fini:
367 drm_fb_helper_fini(&rfbdev->helper);
368free:
369 kfree(rfbdev);
370 return ret;
371}
372
373void radeon_fbdev_fini(struct radeon_device *rdev)
374{
375 if (!rdev->mode_info.rfbdev)
376 return;
377
378 radeon_fbdev_destroy(rdev->ddev, rdev->mode_info.rfbdev);
379 kfree(rdev->mode_info.rfbdev);
380 rdev->mode_info.rfbdev = NULL;
381}
382
383void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state)
384{
385 if (rdev->mode_info.rfbdev)
386 fb_set_suspend(rdev->mode_info.rfbdev->helper.fbdev, state);
387}
388
389bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj)
390{
391 if (!rdev->mode_info.rfbdev)
392 return false;
393
394 if (robj == gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj))
395 return true;
396 return false;
397}
398
399void radeon_fb_add_connector(struct radeon_device *rdev, struct drm_connector *connector)
400{
401 if (rdev->mode_info.rfbdev)
402 drm_fb_helper_add_one_connector(&rdev->mode_info.rfbdev->helper, connector);
403}
404
405void radeon_fb_remove_connector(struct radeon_device *rdev, struct drm_connector *connector)
406{
407 if (rdev->mode_info.rfbdev)
408 drm_fb_helper_remove_one_connector(&rdev->mode_info.rfbdev->helper, connector);
409}
410
411void radeon_fbdev_restore_mode(struct radeon_device *rdev)
412{
413 struct radeon_fbdev *rfbdev = rdev->mode_info.rfbdev;
414 struct drm_fb_helper *fb_helper;
415 int ret;
416
417 if (!rfbdev)
418 return;
419
420 fb_helper = &rfbdev->helper;
421
422 ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);
423 if (ret)
424 DRM_DEBUG("failed to restore crtc mode\n");
425}
1/*
2 * Copyright © 2007 David Airlie
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * David Airlie
25 */
26
27#include <linux/module.h>
28#include <linux/pci.h>
29#include <linux/pm_runtime.h>
30#include <linux/slab.h>
31#include <linux/vga_switcheroo.h>
32
33#include <drm/drm_crtc.h>
34#include <drm/drm_crtc_helper.h>
35#include <drm/drm_fb_helper.h>
36#include <drm/drm_fourcc.h>
37#include <drm/drm_framebuffer.h>
38#include <drm/radeon_drm.h>
39
40#include "radeon.h"
41
42/* object hierarchy -
43 * this contains a helper + a radeon fb
44 * the helper contains a pointer to radeon framebuffer baseclass.
45 */
46struct radeon_fbdev {
47 struct drm_fb_helper helper; /* must be first */
48 struct drm_framebuffer fb;
49 struct radeon_device *rdev;
50};
51
52static int
53radeonfb_open(struct fb_info *info, int user)
54{
55 struct radeon_fbdev *rfbdev = info->par;
56 struct radeon_device *rdev = rfbdev->rdev;
57 int ret = pm_runtime_get_sync(rdev->ddev->dev);
58
59 if (ret < 0 && ret != -EACCES) {
60 pm_runtime_mark_last_busy(rdev->ddev->dev);
61 pm_runtime_put_autosuspend(rdev->ddev->dev);
62 return ret;
63 }
64 return 0;
65}
66
67static int
68radeonfb_release(struct fb_info *info, int user)
69{
70 struct radeon_fbdev *rfbdev = info->par;
71 struct radeon_device *rdev = rfbdev->rdev;
72
73 pm_runtime_mark_last_busy(rdev->ddev->dev);
74 pm_runtime_put_autosuspend(rdev->ddev->dev);
75 return 0;
76}
77
78static const struct fb_ops radeonfb_ops = {
79 .owner = THIS_MODULE,
80 DRM_FB_HELPER_DEFAULT_OPS,
81 .fb_open = radeonfb_open,
82 .fb_release = radeonfb_release,
83 .fb_read = drm_fb_helper_cfb_read,
84 .fb_write = drm_fb_helper_cfb_write,
85 .fb_fillrect = drm_fb_helper_cfb_fillrect,
86 .fb_copyarea = drm_fb_helper_cfb_copyarea,
87 .fb_imageblit = drm_fb_helper_cfb_imageblit,
88};
89
90
91int radeon_align_pitch(struct radeon_device *rdev, int width, int cpp, bool tiled)
92{
93 int aligned = width;
94 int align_large = (ASIC_IS_AVIVO(rdev)) || tiled;
95 int pitch_mask = 0;
96
97 switch (cpp) {
98 case 1:
99 pitch_mask = align_large ? 255 : 127;
100 break;
101 case 2:
102 pitch_mask = align_large ? 127 : 31;
103 break;
104 case 3:
105 case 4:
106 pitch_mask = align_large ? 63 : 15;
107 break;
108 }
109
110 aligned += pitch_mask;
111 aligned &= ~pitch_mask;
112 return aligned * cpp;
113}
114
115static void radeonfb_destroy_pinned_object(struct drm_gem_object *gobj)
116{
117 struct radeon_bo *rbo = gem_to_radeon_bo(gobj);
118 int ret;
119
120 ret = radeon_bo_reserve(rbo, false);
121 if (likely(ret == 0)) {
122 radeon_bo_kunmap(rbo);
123 radeon_bo_unpin(rbo);
124 radeon_bo_unreserve(rbo);
125 }
126 drm_gem_object_put(gobj);
127}
128
129static int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev,
130 struct drm_mode_fb_cmd2 *mode_cmd,
131 struct drm_gem_object **gobj_p)
132{
133 const struct drm_format_info *info;
134 struct radeon_device *rdev = rfbdev->rdev;
135 struct drm_gem_object *gobj = NULL;
136 struct radeon_bo *rbo = NULL;
137 bool fb_tiled = false; /* useful for testing */
138 u32 tiling_flags = 0;
139 int ret;
140 int aligned_size, size;
141 int height = mode_cmd->height;
142 u32 cpp;
143
144 info = drm_get_format_info(rdev->ddev, mode_cmd);
145 cpp = info->cpp[0];
146
147 /* need to align pitch with crtc limits */
148 mode_cmd->pitches[0] = radeon_align_pitch(rdev, mode_cmd->width, cpp,
149 fb_tiled);
150
151 if (rdev->family >= CHIP_R600)
152 height = ALIGN(mode_cmd->height, 8);
153 size = mode_cmd->pitches[0] * height;
154 aligned_size = ALIGN(size, PAGE_SIZE);
155 ret = radeon_gem_object_create(rdev, aligned_size, 0,
156 RADEON_GEM_DOMAIN_VRAM,
157 0, true, &gobj);
158 if (ret) {
159 pr_err("failed to allocate framebuffer (%d)\n", aligned_size);
160 return -ENOMEM;
161 }
162 rbo = gem_to_radeon_bo(gobj);
163
164 if (fb_tiled)
165 tiling_flags = RADEON_TILING_MACRO;
166
167#ifdef __BIG_ENDIAN
168 switch (cpp) {
169 case 4:
170 tiling_flags |= RADEON_TILING_SWAP_32BIT;
171 break;
172 case 2:
173 tiling_flags |= RADEON_TILING_SWAP_16BIT;
174 break;
175 default:
176 break;
177 }
178#endif
179
180 if (tiling_flags) {
181 ret = radeon_bo_set_tiling_flags(rbo,
182 tiling_flags | RADEON_TILING_SURFACE,
183 mode_cmd->pitches[0]);
184 if (ret)
185 dev_err(rdev->dev, "FB failed to set tiling flags\n");
186 }
187
188
189 ret = radeon_bo_reserve(rbo, false);
190 if (unlikely(ret != 0))
191 goto out_unref;
192 /* Only 27 bit offset for legacy CRTC */
193 ret = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM,
194 ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27,
195 NULL);
196 if (ret) {
197 radeon_bo_unreserve(rbo);
198 goto out_unref;
199 }
200 if (fb_tiled)
201 radeon_bo_check_tiling(rbo, 0, 0);
202 ret = radeon_bo_kmap(rbo, NULL);
203 radeon_bo_unreserve(rbo);
204 if (ret)
205 goto out_unref;
206
207 *gobj_p = gobj;
208 return 0;
209out_unref:
210 radeonfb_destroy_pinned_object(gobj);
211 *gobj_p = NULL;
212 return ret;
213}
214
215static int radeonfb_create(struct drm_fb_helper *helper,
216 struct drm_fb_helper_surface_size *sizes)
217{
218 struct radeon_fbdev *rfbdev =
219 container_of(helper, struct radeon_fbdev, helper);
220 struct radeon_device *rdev = rfbdev->rdev;
221 struct fb_info *info;
222 struct drm_framebuffer *fb = NULL;
223 struct drm_mode_fb_cmd2 mode_cmd;
224 struct drm_gem_object *gobj = NULL;
225 struct radeon_bo *rbo = NULL;
226 int ret;
227 unsigned long tmp;
228
229 mode_cmd.width = sizes->surface_width;
230 mode_cmd.height = sizes->surface_height;
231
232 /* avivo can't scanout real 24bpp */
233 if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev))
234 sizes->surface_bpp = 32;
235
236 mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
237 sizes->surface_depth);
238
239 ret = radeonfb_create_pinned_object(rfbdev, &mode_cmd, &gobj);
240 if (ret) {
241 DRM_ERROR("failed to create fbcon object %d\n", ret);
242 return ret;
243 }
244
245 rbo = gem_to_radeon_bo(gobj);
246
247 /* okay we have an object now allocate the framebuffer */
248 info = drm_fb_helper_alloc_info(helper);
249 if (IS_ERR(info)) {
250 ret = PTR_ERR(info);
251 goto out;
252 }
253
254 /* radeon resume is fragile and needs a vt switch to help it along */
255 info->skip_vt_switch = false;
256
257 ret = radeon_framebuffer_init(rdev->ddev, &rfbdev->fb, &mode_cmd, gobj);
258 if (ret) {
259 DRM_ERROR("failed to initialize framebuffer %d\n", ret);
260 goto out;
261 }
262
263 fb = &rfbdev->fb;
264
265 /* setup helper */
266 rfbdev->helper.fb = fb;
267
268 memset_io(rbo->kptr, 0x0, radeon_bo_size(rbo));
269
270 info->fbops = &radeonfb_ops;
271
272 tmp = radeon_bo_gpu_offset(rbo) - rdev->mc.vram_start;
273 info->fix.smem_start = rdev->mc.aper_base + tmp;
274 info->fix.smem_len = radeon_bo_size(rbo);
275 info->screen_base = rbo->kptr;
276 info->screen_size = radeon_bo_size(rbo);
277
278 drm_fb_helper_fill_info(info, &rfbdev->helper, sizes);
279
280 /* setup aperture base/size for vesafb takeover */
281 info->apertures->ranges[0].base = rdev->mc.aper_base;
282 info->apertures->ranges[0].size = rdev->mc.aper_size;
283
284 /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */
285
286 if (info->screen_base == NULL) {
287 ret = -ENOSPC;
288 goto out;
289 }
290
291 DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start);
292 DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base);
293 DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo));
294 DRM_INFO("fb depth is %d\n", fb->format->depth);
295 DRM_INFO(" pitch is %d\n", fb->pitches[0]);
296
297 vga_switcheroo_client_fb_set(rdev->pdev, info);
298 return 0;
299
300out:
301 if (fb && ret) {
302 drm_gem_object_put(gobj);
303 drm_framebuffer_unregister_private(fb);
304 drm_framebuffer_cleanup(fb);
305 kfree(fb);
306 }
307 return ret;
308}
309
310static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfbdev)
311{
312 struct drm_framebuffer *fb = &rfbdev->fb;
313
314 drm_fb_helper_unregister_info(&rfbdev->helper);
315
316 if (fb->obj[0]) {
317 radeonfb_destroy_pinned_object(fb->obj[0]);
318 fb->obj[0] = NULL;
319 drm_framebuffer_unregister_private(fb);
320 drm_framebuffer_cleanup(fb);
321 }
322 drm_fb_helper_fini(&rfbdev->helper);
323
324 return 0;
325}
326
327static const struct drm_fb_helper_funcs radeon_fb_helper_funcs = {
328 .fb_probe = radeonfb_create,
329};
330
331int radeon_fbdev_init(struct radeon_device *rdev)
332{
333 struct radeon_fbdev *rfbdev;
334 int bpp_sel = 32;
335 int ret;
336
337 /* don't enable fbdev if no connectors */
338 if (list_empty(&rdev->ddev->mode_config.connector_list))
339 return 0;
340
341 /* select 8 bpp console on 8MB cards, or 16 bpp on RN50 or 32MB */
342 if (rdev->mc.real_vram_size <= (8*1024*1024))
343 bpp_sel = 8;
344 else if (ASIC_IS_RN50(rdev) ||
345 rdev->mc.real_vram_size <= (32*1024*1024))
346 bpp_sel = 16;
347
348 rfbdev = kzalloc(sizeof(struct radeon_fbdev), GFP_KERNEL);
349 if (!rfbdev)
350 return -ENOMEM;
351
352 rfbdev->rdev = rdev;
353 rdev->mode_info.rfbdev = rfbdev;
354
355 drm_fb_helper_prepare(rdev->ddev, &rfbdev->helper,
356 &radeon_fb_helper_funcs);
357
358 ret = drm_fb_helper_init(rdev->ddev, &rfbdev->helper);
359 if (ret)
360 goto free;
361
362 /* disable all the possible outputs/crtcs before entering KMS mode */
363 drm_helper_disable_unused_functions(rdev->ddev);
364
365 ret = drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel);
366 if (ret)
367 goto fini;
368
369 return 0;
370
371fini:
372 drm_fb_helper_fini(&rfbdev->helper);
373free:
374 kfree(rfbdev);
375 return ret;
376}
377
378void radeon_fbdev_fini(struct radeon_device *rdev)
379{
380 if (!rdev->mode_info.rfbdev)
381 return;
382
383 radeon_fbdev_destroy(rdev->ddev, rdev->mode_info.rfbdev);
384 kfree(rdev->mode_info.rfbdev);
385 rdev->mode_info.rfbdev = NULL;
386}
387
388void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state)
389{
390 if (rdev->mode_info.rfbdev)
391 drm_fb_helper_set_suspend(&rdev->mode_info.rfbdev->helper, state);
392}
393
394bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj)
395{
396 if (!rdev->mode_info.rfbdev)
397 return false;
398
399 if (robj == gem_to_radeon_bo(rdev->mode_info.rfbdev->fb.obj[0]))
400 return true;
401 return false;
402}