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771fe6b9 JG |
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 | */ | |
771fe6b9 | 26 | #include <linux/module.h> |
5a0e3ad6 | 27 | #include <linux/slab.h> |
771fe6b9 | 28 | #include <linux/fb.h> |
771fe6b9 | 29 | |
760285e7 DH |
30 | #include <drm/drmP.h> |
31 | #include <drm/drm_crtc.h> | |
32 | #include <drm/drm_crtc_helper.h> | |
33 | #include <drm/radeon_drm.h> | |
771fe6b9 JG |
34 | #include "radeon.h" |
35 | ||
760285e7 | 36 | #include <drm/drm_fb_helper.h> |
785b93ef | 37 | |
6a9ee8af DA |
38 | #include <linux/vga_switcheroo.h> |
39 | ||
38651674 DA |
40 | /* object hierarchy - |
41 | this contains a helper + a radeon fb | |
42 | the helper contains a pointer to radeon framebuffer baseclass. | |
43 | */ | |
8be48d92 | 44 | struct radeon_fbdev { |
785b93ef | 45 | struct drm_fb_helper helper; |
38651674 DA |
46 | struct radeon_framebuffer rfb; |
47 | struct list_head fbdev_list; | |
48 | struct radeon_device *rdev; | |
771fe6b9 JG |
49 | }; |
50 | ||
771fe6b9 JG |
51 | static struct fb_ops radeonfb_ops = { |
52 | .owner = THIS_MODULE, | |
c88f9f0c | 53 | .fb_check_var = drm_fb_helper_check_var, |
785b93ef | 54 | .fb_set_par = drm_fb_helper_set_par, |
771fe6b9 JG |
55 | .fb_fillrect = cfb_fillrect, |
56 | .fb_copyarea = cfb_copyarea, | |
57 | .fb_imageblit = cfb_imageblit, | |
785b93ef DA |
58 | .fb_pan_display = drm_fb_helper_pan_display, |
59 | .fb_blank = drm_fb_helper_blank, | |
068143d3 | 60 | .fb_setcmap = drm_fb_helper_setcmap, |
4dd19b0d CB |
61 | .fb_debug_enter = drm_fb_helper_debug_enter, |
62 | .fb_debug_leave = drm_fb_helper_debug_leave, | |
771fe6b9 JG |
63 | }; |
64 | ||
771fe6b9 | 65 | |
ff72145b | 66 | int radeon_align_pitch(struct radeon_device *rdev, int width, int bpp, bool tiled) |
771fe6b9 JG |
67 | { |
68 | int aligned = width; | |
e024e110 | 69 | int align_large = (ASIC_IS_AVIVO(rdev)) || tiled; |
771fe6b9 JG |
70 | int pitch_mask = 0; |
71 | ||
72 | switch (bpp / 8) { | |
73 | case 1: | |
74 | pitch_mask = align_large ? 255 : 127; | |
75 | break; | |
76 | case 2: | |
77 | pitch_mask = align_large ? 127 : 31; | |
78 | break; | |
79 | case 3: | |
80 | case 4: | |
81 | pitch_mask = align_large ? 63 : 15; | |
82 | break; | |
83 | } | |
84 | ||
85 | aligned += pitch_mask; | |
86 | aligned &= ~pitch_mask; | |
87 | return aligned; | |
88 | } | |
89 | ||
8be48d92 | 90 | static void radeonfb_destroy_pinned_object(struct drm_gem_object *gobj) |
771fe6b9 | 91 | { |
7e4d15d9 | 92 | struct radeon_bo *rbo = gem_to_radeon_bo(gobj); |
8be48d92 DA |
93 | int ret; |
94 | ||
95 | ret = radeon_bo_reserve(rbo, false); | |
96 | if (likely(ret == 0)) { | |
97 | radeon_bo_kunmap(rbo); | |
29d08b3e | 98 | radeon_bo_unpin(rbo); |
8be48d92 DA |
99 | radeon_bo_unreserve(rbo); |
100 | } | |
101 | drm_gem_object_unreference_unlocked(gobj); | |
102 | } | |
785b93ef | 103 | |
8be48d92 | 104 | static int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev, |
308e5bcb | 105 | struct drm_mode_fb_cmd2 *mode_cmd, |
8be48d92 | 106 | struct drm_gem_object **gobj_p) |
771fe6b9 | 107 | { |
8be48d92 | 108 | struct radeon_device *rdev = rfbdev->rdev; |
771fe6b9 | 109 | struct drm_gem_object *gobj = NULL; |
4c788679 | 110 | struct radeon_bo *rbo = NULL; |
e024e110 | 111 | bool fb_tiled = false; /* useful for testing */ |
c88f9f0c | 112 | u32 tiling_flags = 0; |
8be48d92 DA |
113 | int ret; |
114 | int aligned_size, size; | |
e40b6fc8 | 115 | int height = mode_cmd->height; |
308e5bcb JB |
116 | u32 bpp, depth; |
117 | ||
248dbc23 | 118 | drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp); |
771fe6b9 | 119 | |
771fe6b9 | 120 | /* need to align pitch with crtc limits */ |
308e5bcb JB |
121 | mode_cmd->pitches[0] = radeon_align_pitch(rdev, mode_cmd->width, bpp, |
122 | fb_tiled) * ((bpp + 1) / 8); | |
771fe6b9 | 123 | |
e40b6fc8 DA |
124 | if (rdev->family >= CHIP_R600) |
125 | height = ALIGN(mode_cmd->height, 8); | |
308e5bcb | 126 | size = mode_cmd->pitches[0] * height; |
771fe6b9 | 127 | aligned_size = ALIGN(size, PAGE_SIZE); |
771fe6b9 | 128 | ret = radeon_gem_object_create(rdev, aligned_size, 0, |
8be48d92 | 129 | RADEON_GEM_DOMAIN_VRAM, |
4dfe947e | 130 | false, true, |
8be48d92 | 131 | &gobj); |
771fe6b9 | 132 | if (ret) { |
8be48d92 DA |
133 | printk(KERN_ERR "failed to allocate framebuffer (%d)\n", |
134 | aligned_size); | |
135 | return -ENOMEM; | |
771fe6b9 | 136 | } |
7e4d15d9 | 137 | rbo = gem_to_radeon_bo(gobj); |
771fe6b9 | 138 | |
e024e110 | 139 | if (fb_tiled) |
c88f9f0c MD |
140 | tiling_flags = RADEON_TILING_MACRO; |
141 | ||
142 | #ifdef __BIG_ENDIAN | |
435ddd92 | 143 | switch (bpp) { |
c88f9f0c MD |
144 | case 32: |
145 | tiling_flags |= RADEON_TILING_SWAP_32BIT; | |
146 | break; | |
147 | case 16: | |
148 | tiling_flags |= RADEON_TILING_SWAP_16BIT; | |
149 | default: | |
150 | break; | |
151 | } | |
152 | #endif | |
153 | ||
4c788679 JG |
154 | if (tiling_flags) { |
155 | ret = radeon_bo_set_tiling_flags(rbo, | |
8be48d92 | 156 | tiling_flags | RADEON_TILING_SURFACE, |
308e5bcb | 157 | mode_cmd->pitches[0]); |
4c788679 JG |
158 | if (ret) |
159 | dev_err(rdev->dev, "FB failed to set tiling flags\n"); | |
160 | } | |
8be48d92 | 161 | |
38651674 | 162 | |
4c788679 JG |
163 | ret = radeon_bo_reserve(rbo, false); |
164 | if (unlikely(ret != 0)) | |
165 | goto out_unref; | |
0349af70 MD |
166 | /* Only 27 bit offset for legacy CRTC */ |
167 | ret = radeon_bo_pin_restricted(rbo, RADEON_GEM_DOMAIN_VRAM, | |
168 | ASIC_IS_AVIVO(rdev) ? 0 : 1 << 27, | |
169 | NULL); | |
4c788679 JG |
170 | if (ret) { |
171 | radeon_bo_unreserve(rbo); | |
172 | goto out_unref; | |
173 | } | |
174 | if (fb_tiled) | |
175 | radeon_bo_check_tiling(rbo, 0, 0); | |
8be48d92 | 176 | ret = radeon_bo_kmap(rbo, NULL); |
4c788679 | 177 | radeon_bo_unreserve(rbo); |
f92e93eb | 178 | if (ret) { |
f92e93eb JG |
179 | goto out_unref; |
180 | } | |
771fe6b9 | 181 | |
8be48d92 DA |
182 | *gobj_p = gobj; |
183 | return 0; | |
184 | out_unref: | |
185 | radeonfb_destroy_pinned_object(gobj); | |
186 | *gobj_p = NULL; | |
187 | return ret; | |
188 | } | |
189 | ||
190 | static int radeonfb_create(struct radeon_fbdev *rfbdev, | |
191 | struct drm_fb_helper_surface_size *sizes) | |
192 | { | |
193 | struct radeon_device *rdev = rfbdev->rdev; | |
194 | struct fb_info *info; | |
195 | struct drm_framebuffer *fb = NULL; | |
308e5bcb | 196 | struct drm_mode_fb_cmd2 mode_cmd; |
8be48d92 DA |
197 | struct drm_gem_object *gobj = NULL; |
198 | struct radeon_bo *rbo = NULL; | |
199 | struct device *device = &rdev->pdev->dev; | |
200 | int ret; | |
201 | unsigned long tmp; | |
202 | ||
203 | mode_cmd.width = sizes->surface_width; | |
204 | mode_cmd.height = sizes->surface_height; | |
205 | ||
206 | /* avivo can't scanout real 24bpp */ | |
207 | if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev)) | |
208 | sizes->surface_bpp = 32; | |
209 | ||
308e5bcb JB |
210 | mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp, |
211 | sizes->surface_depth); | |
771fe6b9 | 212 | |
8be48d92 | 213 | ret = radeonfb_create_pinned_object(rfbdev, &mode_cmd, &gobj); |
aaefcd42 DA |
214 | if (ret) { |
215 | DRM_ERROR("failed to create fbcon object %d\n", ret); | |
216 | return ret; | |
217 | } | |
218 | ||
7e4d15d9 | 219 | rbo = gem_to_radeon_bo(gobj); |
771fe6b9 | 220 | |
8be48d92 DA |
221 | /* okay we have an object now allocate the framebuffer */ |
222 | info = framebuffer_alloc(0, device); | |
771fe6b9 JG |
223 | if (info == NULL) { |
224 | ret = -ENOMEM; | |
225 | goto out_unref; | |
226 | } | |
785b93ef | 227 | |
8be48d92 | 228 | info->par = rfbdev; |
771fe6b9 | 229 | |
aaefcd42 DA |
230 | ret = radeon_framebuffer_init(rdev->ddev, &rfbdev->rfb, &mode_cmd, gobj); |
231 | if (ret) { | |
232 | DRM_ERROR("failed to initalise framebuffer %d\n", ret); | |
233 | goto out_unref; | |
234 | } | |
8be48d92 | 235 | |
38651674 DA |
236 | fb = &rfbdev->rfb.base; |
237 | ||
238 | /* setup helper */ | |
239 | rfbdev->helper.fb = fb; | |
240 | rfbdev->helper.fbdev = info; | |
38651674 | 241 | |
8be48d92 | 242 | memset_io(rbo->kptr, 0x0, radeon_bo_size(rbo)); |
bf8e828b | 243 | |
771fe6b9 | 244 | strcpy(info->fix.id, "radeondrmfb"); |
785b93ef | 245 | |
01f2c773 | 246 | drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth); |
3632ef89 | 247 | |
8fd4bd22 | 248 | info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT; |
771fe6b9 | 249 | info->fbops = &radeonfb_ops; |
785b93ef | 250 | |
8be48d92 | 251 | tmp = radeon_bo_gpu_offset(rbo) - rdev->mc.vram_start; |
f92e93eb | 252 | info->fix.smem_start = rdev->mc.aper_base + tmp; |
8be48d92 DA |
253 | info->fix.smem_len = radeon_bo_size(rbo); |
254 | info->screen_base = rbo->kptr; | |
255 | info->screen_size = radeon_bo_size(rbo); | |
785b93ef | 256 | |
38651674 | 257 | drm_fb_helper_fill_var(info, &rfbdev->helper, sizes->fb_width, sizes->fb_height); |
ed8f0d9e DA |
258 | |
259 | /* setup aperture base/size for vesafb takeover */ | |
1471ca9a MS |
260 | info->apertures = alloc_apertures(1); |
261 | if (!info->apertures) { | |
262 | ret = -ENOMEM; | |
263 | goto out_unref; | |
264 | } | |
265 | info->apertures->ranges[0].base = rdev->ddev->mode_config.fb_base; | |
68d30596 | 266 | info->apertures->ranges[0].size = rdev->mc.aper_size; |
ed8f0d9e | 267 | |
fb2a99e1 | 268 | /* Use default scratch pixmap (info->pixmap.flags = FB_PIXMAP_SYSTEM) */ |
4abe3520 | 269 | |
771fe6b9 JG |
270 | if (info->screen_base == NULL) { |
271 | ret = -ENOSPC; | |
272 | goto out_unref; | |
273 | } | |
4abe3520 DA |
274 | |
275 | ret = fb_alloc_cmap(&info->cmap, 256, 0); | |
276 | if (ret) { | |
277 | ret = -ENOMEM; | |
278 | goto out_unref; | |
279 | } | |
280 | ||
771fe6b9 JG |
281 | DRM_INFO("fb mappable at 0x%lX\n", info->fix.smem_start); |
282 | DRM_INFO("vram apper at 0x%lX\n", (unsigned long)rdev->mc.aper_base); | |
8be48d92 | 283 | DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo)); |
771fe6b9 | 284 | DRM_INFO("fb depth is %d\n", fb->depth); |
01f2c773 | 285 | DRM_INFO(" pitch is %d\n", fb->pitches[0]); |
771fe6b9 | 286 | |
6a9ee8af | 287 | vga_switcheroo_client_fb_set(rdev->ddev->pdev, info); |
771fe6b9 JG |
288 | return 0; |
289 | ||
290 | out_unref: | |
4c788679 | 291 | if (rbo) { |
8be48d92 | 292 | |
771fe6b9 | 293 | } |
f92e93eb | 294 | if (fb && ret) { |
771fe6b9 JG |
295 | drm_gem_object_unreference(gobj); |
296 | drm_framebuffer_cleanup(fb); | |
297 | kfree(fb); | |
298 | } | |
771fe6b9 JG |
299 | return ret; |
300 | } | |
301 | ||
8be48d92 DA |
302 | static int radeon_fb_find_or_create_single(struct drm_fb_helper *helper, |
303 | struct drm_fb_helper_surface_size *sizes) | |
38651674 | 304 | { |
8be48d92 | 305 | struct radeon_fbdev *rfbdev = (struct radeon_fbdev *)helper; |
38651674 DA |
306 | int new_fb = 0; |
307 | int ret; | |
308 | ||
8be48d92 DA |
309 | if (!helper->fb) { |
310 | ret = radeonfb_create(rfbdev, sizes); | |
38651674 DA |
311 | if (ret) |
312 | return ret; | |
38651674 | 313 | new_fb = 1; |
38651674 | 314 | } |
38651674 DA |
315 | return new_fb; |
316 | } | |
317 | ||
d50ba256 DA |
318 | static char *mode_option; |
319 | int radeon_parse_options(char *options) | |
320 | { | |
321 | char *this_opt; | |
322 | ||
323 | if (!options || !*options) | |
324 | return 0; | |
325 | ||
326 | while ((this_opt = strsep(&options, ",")) != NULL) { | |
327 | if (!*this_opt) | |
328 | continue; | |
329 | mode_option = this_opt; | |
330 | } | |
331 | return 0; | |
332 | } | |
333 | ||
eb1f8e4f | 334 | void radeon_fb_output_poll_changed(struct radeon_device *rdev) |
771fe6b9 | 335 | { |
eb1f8e4f | 336 | drm_fb_helper_hotplug_event(&rdev->mode_info.rfbdev->helper); |
771fe6b9 | 337 | } |
771fe6b9 | 338 | |
8be48d92 | 339 | static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfbdev) |
771fe6b9 JG |
340 | { |
341 | struct fb_info *info; | |
38651674 | 342 | struct radeon_framebuffer *rfb = &rfbdev->rfb; |
771fe6b9 | 343 | |
8be48d92 DA |
344 | if (rfbdev->helper.fbdev) { |
345 | info = rfbdev->helper.fbdev; | |
4abe3520 | 346 | |
8be48d92 | 347 | unregister_framebuffer(info); |
4abe3520 DA |
348 | if (info->cmap.len) |
349 | fb_dealloc_cmap(&info->cmap); | |
8be48d92 | 350 | framebuffer_release(info); |
771fe6b9 | 351 | } |
771fe6b9 | 352 | |
8be48d92 | 353 | if (rfb->obj) { |
29d08b3e DA |
354 | radeonfb_destroy_pinned_object(rfb->obj); |
355 | rfb->obj = NULL; | |
771fe6b9 | 356 | } |
4abe3520 | 357 | drm_fb_helper_fini(&rfbdev->helper); |
38651674 | 358 | drm_framebuffer_cleanup(&rfb->base); |
771fe6b9 | 359 | |
771fe6b9 JG |
360 | return 0; |
361 | } | |
785b93ef | 362 | |
4abe3520 DA |
363 | static struct drm_fb_helper_funcs radeon_fb_helper_funcs = { |
364 | .gamma_set = radeon_crtc_fb_gamma_set, | |
365 | .gamma_get = radeon_crtc_fb_gamma_get, | |
366 | .fb_probe = radeon_fb_find_or_create_single, | |
4abe3520 | 367 | }; |
38651674 DA |
368 | |
369 | int radeon_fbdev_init(struct radeon_device *rdev) | |
370 | { | |
8be48d92 | 371 | struct radeon_fbdev *rfbdev; |
4abe3520 | 372 | int bpp_sel = 32; |
5a79395b | 373 | int ret; |
4abe3520 DA |
374 | |
375 | /* select 8 bpp console on RN50 or 16MB cards */ | |
376 | if (ASIC_IS_RN50(rdev) || rdev->mc.real_vram_size <= (32*1024*1024)) | |
377 | bpp_sel = 8; | |
8be48d92 DA |
378 | |
379 | rfbdev = kzalloc(sizeof(struct radeon_fbdev), GFP_KERNEL); | |
380 | if (!rfbdev) | |
381 | return -ENOMEM; | |
382 | ||
383 | rfbdev->rdev = rdev; | |
384 | rdev->mode_info.rfbdev = rfbdev; | |
4abe3520 | 385 | rfbdev->helper.funcs = &radeon_fb_helper_funcs; |
8be48d92 | 386 | |
5a79395b CW |
387 | ret = drm_fb_helper_init(rdev->ddev, &rfbdev->helper, |
388 | rdev->num_crtc, | |
389 | RADEONFB_CONN_LIMIT); | |
390 | if (ret) { | |
391 | kfree(rfbdev); | |
392 | return ret; | |
393 | } | |
394 | ||
0b4c0f3f | 395 | drm_fb_helper_single_add_all_connectors(&rfbdev->helper); |
4abe3520 | 396 | drm_fb_helper_initial_config(&rfbdev->helper, bpp_sel); |
771fe6b9 | 397 | return 0; |
38651674 DA |
398 | } |
399 | ||
400 | void radeon_fbdev_fini(struct radeon_device *rdev) | |
401 | { | |
8be48d92 DA |
402 | if (!rdev->mode_info.rfbdev) |
403 | return; | |
404 | ||
38651674 | 405 | radeon_fbdev_destroy(rdev->ddev, rdev->mode_info.rfbdev); |
8be48d92 | 406 | kfree(rdev->mode_info.rfbdev); |
38651674 DA |
407 | rdev->mode_info.rfbdev = NULL; |
408 | } | |
409 | ||
410 | void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state) | |
411 | { | |
412 | fb_set_suspend(rdev->mode_info.rfbdev->helper.fbdev, state); | |
413 | } | |
414 | ||
415 | int radeon_fbdev_total_size(struct radeon_device *rdev) | |
416 | { | |
417 | struct radeon_bo *robj; | |
418 | int size = 0; | |
419 | ||
7e4d15d9 | 420 | robj = gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj); |
38651674 DA |
421 | size += radeon_bo_size(robj); |
422 | return size; | |
423 | } | |
424 | ||
425 | bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj) | |
426 | { | |
7e4d15d9 | 427 | if (robj == gem_to_radeon_bo(rdev->mode_info.rfbdev->rfb.obj)) |
38651674 DA |
428 | return true; |
429 | return false; | |
771fe6b9 | 430 | } |