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Commit | Line | Data |
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cd5351f4 | 1 | /* |
8bb0daff | 2 | * drivers/gpu/drm/omapdrm/omap_fb.c |
cd5351f4 RC |
3 | * |
4 | * Copyright (C) 2011 Texas Instruments | |
5 | * Author: Rob Clark <rob@ti.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License version 2 as published by | |
9 | * the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along with | |
17 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "omap_drv.h" | |
3c810c61 | 21 | #include "omap_dmm_tiler.h" |
cd5351f4 RC |
22 | |
23 | #include "drm_crtc.h" | |
24 | #include "drm_crtc_helper.h" | |
25 | ||
cd5351f4 RC |
26 | /* |
27 | * framebuffer funcs | |
28 | */ | |
29 | ||
ae43d7ca RC |
30 | /* per-format info: */ |
31 | struct format { | |
32 | enum omap_color_mode dss_format; | |
33 | uint32_t pixel_format; | |
34 | struct { | |
35 | int stride_bpp; /* this times width is stride */ | |
36 | int sub_y; /* sub-sample in y dimension */ | |
37 | } planes[4]; | |
38 | bool yuv; | |
39 | }; | |
40 | ||
41 | static const struct format formats[] = { | |
42 | /* 16bpp [A]RGB: */ | |
43 | { OMAP_DSS_COLOR_RGB16, DRM_FORMAT_RGB565, {{2, 1}}, false }, /* RGB16-565 */ | |
44 | { OMAP_DSS_COLOR_RGB12U, DRM_FORMAT_RGBX4444, {{2, 1}}, false }, /* RGB12x-4444 */ | |
45 | { OMAP_DSS_COLOR_RGBX16, DRM_FORMAT_XRGB4444, {{2, 1}}, false }, /* xRGB12-4444 */ | |
46 | { OMAP_DSS_COLOR_RGBA16, DRM_FORMAT_RGBA4444, {{2, 1}}, false }, /* RGBA12-4444 */ | |
47 | { OMAP_DSS_COLOR_ARGB16, DRM_FORMAT_ARGB4444, {{2, 1}}, false }, /* ARGB16-4444 */ | |
48 | { OMAP_DSS_COLOR_XRGB16_1555, DRM_FORMAT_XRGB1555, {{2, 1}}, false }, /* xRGB15-1555 */ | |
49 | { OMAP_DSS_COLOR_ARGB16_1555, DRM_FORMAT_ARGB1555, {{2, 1}}, false }, /* ARGB16-1555 */ | |
50 | /* 24bpp RGB: */ | |
51 | { OMAP_DSS_COLOR_RGB24P, DRM_FORMAT_RGB888, {{3, 1}}, false }, /* RGB24-888 */ | |
52 | /* 32bpp [A]RGB: */ | |
53 | { OMAP_DSS_COLOR_RGBX32, DRM_FORMAT_RGBX8888, {{4, 1}}, false }, /* RGBx24-8888 */ | |
54 | { OMAP_DSS_COLOR_RGB24U, DRM_FORMAT_XRGB8888, {{4, 1}}, false }, /* xRGB24-8888 */ | |
55 | { OMAP_DSS_COLOR_RGBA32, DRM_FORMAT_RGBA8888, {{4, 1}}, false }, /* RGBA32-8888 */ | |
56 | { OMAP_DSS_COLOR_ARGB32, DRM_FORMAT_ARGB8888, {{4, 1}}, false }, /* ARGB32-8888 */ | |
57 | /* YUV: */ | |
58 | { OMAP_DSS_COLOR_NV12, DRM_FORMAT_NV12, {{1, 1}, {1, 2}}, true }, | |
59 | { OMAP_DSS_COLOR_YUV2, DRM_FORMAT_YUYV, {{2, 1}}, true }, | |
60 | { OMAP_DSS_COLOR_UYVY, DRM_FORMAT_UYVY, {{2, 1}}, true }, | |
61 | }; | |
62 | ||
a890e662 RC |
63 | /* convert from overlay's pixel formats bitmask to an array of fourcc's */ |
64 | uint32_t omap_framebuffer_get_formats(uint32_t *pixel_formats, | |
65 | uint32_t max_formats, enum omap_color_mode supported_modes) | |
66 | { | |
67 | uint32_t nformats = 0; | |
68 | int i = 0; | |
69 | ||
70 | for (i = 0; i < ARRAY_SIZE(formats) && nformats < max_formats; i++) | |
71 | if (formats[i].dss_format & supported_modes) | |
72 | pixel_formats[nformats++] = formats[i].pixel_format; | |
73 | ||
74 | return nformats; | |
75 | } | |
76 | ||
9a0774e0 RC |
77 | /* per-plane info for the fb: */ |
78 | struct plane { | |
79 | struct drm_gem_object *bo; | |
80 | uint32_t pitch; | |
81 | uint32_t offset; | |
82 | dma_addr_t paddr; | |
83 | }; | |
84 | ||
cd5351f4 RC |
85 | #define to_omap_framebuffer(x) container_of(x, struct omap_framebuffer, base) |
86 | ||
87 | struct omap_framebuffer { | |
88 | struct drm_framebuffer base; | |
ae43d7ca | 89 | const struct format *format; |
9a0774e0 | 90 | struct plane planes[4]; |
cd5351f4 RC |
91 | }; |
92 | ||
93 | static int omap_framebuffer_create_handle(struct drm_framebuffer *fb, | |
94 | struct drm_file *file_priv, | |
95 | unsigned int *handle) | |
96 | { | |
97 | struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); | |
9a0774e0 RC |
98 | return drm_gem_handle_create(file_priv, |
99 | omap_fb->planes[0].bo, handle); | |
cd5351f4 RC |
100 | } |
101 | ||
102 | static void omap_framebuffer_destroy(struct drm_framebuffer *fb) | |
103 | { | |
cd5351f4 | 104 | struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); |
9f18c95a | 105 | int i, n = drm_format_num_planes(fb->pixel_format); |
cd5351f4 RC |
106 | |
107 | DBG("destroy: FB ID: %d (%p)", fb->base.id, fb); | |
108 | ||
109 | drm_framebuffer_cleanup(fb); | |
110 | ||
9a0774e0 RC |
111 | for (i = 0; i < n; i++) { |
112 | struct plane *plane = &omap_fb->planes[i]; | |
113 | if (plane->bo) | |
114 | drm_gem_object_unreference_unlocked(plane->bo); | |
cd5351f4 RC |
115 | } |
116 | ||
117 | kfree(omap_fb); | |
118 | } | |
119 | ||
120 | static int omap_framebuffer_dirty(struct drm_framebuffer *fb, | |
121 | struct drm_file *file_priv, unsigned flags, unsigned color, | |
122 | struct drm_clip_rect *clips, unsigned num_clips) | |
123 | { | |
124 | int i; | |
125 | ||
73e9efd4 VS |
126 | drm_modeset_lock_all(fb->dev); |
127 | ||
cd5351f4 RC |
128 | for (i = 0; i < num_clips; i++) { |
129 | omap_framebuffer_flush(fb, clips[i].x1, clips[i].y1, | |
130 | clips[i].x2 - clips[i].x1, | |
131 | clips[i].y2 - clips[i].y1); | |
132 | } | |
133 | ||
73e9efd4 VS |
134 | drm_modeset_unlock_all(fb->dev); |
135 | ||
cd5351f4 RC |
136 | return 0; |
137 | } | |
138 | ||
139 | static const struct drm_framebuffer_funcs omap_framebuffer_funcs = { | |
140 | .create_handle = omap_framebuffer_create_handle, | |
141 | .destroy = omap_framebuffer_destroy, | |
142 | .dirty = omap_framebuffer_dirty, | |
143 | }; | |
144 | ||
3c810c61 RC |
145 | static uint32_t get_linear_addr(struct plane *plane, |
146 | const struct format *format, int n, int x, int y) | |
147 | { | |
148 | uint32_t offset; | |
149 | ||
150 | offset = plane->offset + | |
151 | (x * format->planes[n].stride_bpp) + | |
152 | (y * plane->pitch / format->planes[n].sub_y); | |
153 | ||
154 | return plane->paddr + offset; | |
155 | } | |
156 | ||
9a0774e0 RC |
157 | /* update ovl info for scanout, handles cases of multi-planar fb's, etc. |
158 | */ | |
3c810c61 RC |
159 | void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, |
160 | struct omap_drm_window *win, struct omap_overlay_info *info) | |
9a0774e0 RC |
161 | { |
162 | struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); | |
163 | const struct format *format = omap_fb->format; | |
164 | struct plane *plane = &omap_fb->planes[0]; | |
3c810c61 RC |
165 | uint32_t x, y, orient = 0; |
166 | ||
167 | info->color_mode = format->dss_format; | |
168 | ||
169 | info->pos_x = win->crtc_x; | |
170 | info->pos_y = win->crtc_y; | |
171 | info->out_width = win->crtc_w; | |
172 | info->out_height = win->crtc_h; | |
173 | info->width = win->src_w; | |
174 | info->height = win->src_h; | |
175 | ||
176 | x = win->src_x; | |
177 | y = win->src_y; | |
178 | ||
179 | if (omap_gem_flags(plane->bo) & OMAP_BO_TILED) { | |
180 | uint32_t w = win->src_w; | |
181 | uint32_t h = win->src_h; | |
182 | ||
183 | switch (win->rotation & 0xf) { | |
184 | default: | |
185 | dev_err(fb->dev->dev, "invalid rotation: %02x", | |
186 | (uint32_t)win->rotation); | |
187 | /* fallthru to default to no rotation */ | |
188 | case 0: | |
189 | case BIT(DRM_ROTATE_0): | |
190 | orient = 0; | |
191 | break; | |
192 | case BIT(DRM_ROTATE_90): | |
193 | orient = MASK_XY_FLIP | MASK_X_INVERT; | |
194 | break; | |
195 | case BIT(DRM_ROTATE_180): | |
196 | orient = MASK_X_INVERT | MASK_Y_INVERT; | |
197 | break; | |
198 | case BIT(DRM_ROTATE_270): | |
199 | orient = MASK_XY_FLIP | MASK_Y_INVERT; | |
200 | break; | |
201 | } | |
9a0774e0 | 202 | |
3c810c61 RC |
203 | if (win->rotation & BIT(DRM_REFLECT_X)) |
204 | orient ^= MASK_X_INVERT; | |
205 | ||
206 | if (win->rotation & BIT(DRM_REFLECT_Y)) | |
207 | orient ^= MASK_Y_INVERT; | |
208 | ||
209 | /* adjust x,y offset for flip/invert: */ | |
210 | if (orient & MASK_XY_FLIP) | |
211 | swap(w, h); | |
212 | if (orient & MASK_Y_INVERT) | |
213 | y += h - 1; | |
214 | if (orient & MASK_X_INVERT) | |
215 | x += w - 1; | |
9a0774e0 | 216 | |
3c810c61 RC |
217 | omap_gem_rotated_paddr(plane->bo, orient, x, y, &info->paddr); |
218 | info->rotation_type = OMAP_DSS_ROT_TILER; | |
219 | info->screen_width = omap_gem_tiled_stride(plane->bo, orient); | |
220 | } else { | |
221 | info->paddr = get_linear_addr(plane, format, 0, x, y); | |
222 | info->rotation_type = OMAP_DSS_ROT_DMA; | |
223 | info->screen_width = plane->pitch; | |
224 | } | |
225 | ||
226 | /* convert to pixels: */ | |
227 | info->screen_width /= format->planes[0].stride_bpp; | |
9a0774e0 RC |
228 | |
229 | if (format->dss_format == OMAP_DSS_COLOR_NV12) { | |
230 | plane = &omap_fb->planes[1]; | |
3c810c61 RC |
231 | |
232 | if (info->rotation_type == OMAP_DSS_ROT_TILER) { | |
233 | WARN_ON(!(omap_gem_flags(plane->bo) & OMAP_BO_TILED)); | |
234 | omap_gem_rotated_paddr(plane->bo, orient, | |
235 | x/2, y/2, &info->p_uv_addr); | |
236 | } else { | |
237 | info->p_uv_addr = get_linear_addr(plane, format, 1, x, y); | |
238 | } | |
9a0774e0 RC |
239 | } else { |
240 | info->p_uv_addr = 0; | |
241 | } | |
242 | } | |
243 | ||
5833bd2f RC |
244 | /* pin, prepare for scanout: */ |
245 | int omap_framebuffer_pin(struct drm_framebuffer *fb) | |
b33f34d3 | 246 | { |
5833bd2f RC |
247 | struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); |
248 | int ret, i, n = drm_format_num_planes(fb->pixel_format); | |
249 | ||
250 | for (i = 0; i < n; i++) { | |
251 | struct plane *plane = &omap_fb->planes[i]; | |
252 | ret = omap_gem_get_paddr(plane->bo, &plane->paddr, true); | |
253 | if (ret) | |
254 | goto fail; | |
255 | omap_gem_dma_sync(plane->bo, DMA_TO_DEVICE); | |
256 | } | |
b33f34d3 | 257 | |
5833bd2f | 258 | return 0; |
b33f34d3 | 259 | |
5833bd2f RC |
260 | fail: |
261 | for (i--; i >= 0; i--) { | |
262 | struct plane *plane = &omap_fb->planes[i]; | |
263 | omap_gem_put_paddr(plane->bo); | |
264 | plane->paddr = 0; | |
265 | } | |
b33f34d3 | 266 | |
5833bd2f RC |
267 | return ret; |
268 | } | |
b33f34d3 | 269 | |
5833bd2f RC |
270 | /* unpin, no longer being scanned out: */ |
271 | int omap_framebuffer_unpin(struct drm_framebuffer *fb) | |
272 | { | |
273 | struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); | |
274 | int ret, i, n = drm_format_num_planes(fb->pixel_format); | |
b33f34d3 | 275 | |
5833bd2f RC |
276 | for (i = 0; i < n; i++) { |
277 | struct plane *plane = &omap_fb->planes[i]; | |
278 | ret = omap_gem_put_paddr(plane->bo); | |
279 | if (ret) | |
280 | goto fail; | |
281 | plane->paddr = 0; | |
b33f34d3 RC |
282 | } |
283 | ||
5833bd2f | 284 | return 0; |
b33f34d3 | 285 | |
5833bd2f | 286 | fail: |
b33f34d3 RC |
287 | return ret; |
288 | } | |
289 | ||
9a0774e0 RC |
290 | struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p) |
291 | { | |
292 | struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); | |
9f18c95a | 293 | if (p >= drm_format_num_planes(fb->pixel_format)) |
9a0774e0 RC |
294 | return NULL; |
295 | return omap_fb->planes[p].bo; | |
cd5351f4 RC |
296 | } |
297 | ||
298 | /* iterate thru all the connectors, returning ones that are attached | |
299 | * to the same fb.. | |
300 | */ | |
301 | struct drm_connector *omap_framebuffer_get_next_connector( | |
302 | struct drm_framebuffer *fb, struct drm_connector *from) | |
303 | { | |
304 | struct drm_device *dev = fb->dev; | |
305 | struct list_head *connector_list = &dev->mode_config.connector_list; | |
306 | struct drm_connector *connector = from; | |
307 | ||
ddcd49ed | 308 | if (!from) |
cd5351f4 | 309 | return list_first_entry(connector_list, typeof(*from), head); |
cd5351f4 RC |
310 | |
311 | list_for_each_entry_from(connector, connector_list, head) { | |
312 | if (connector != from) { | |
313 | struct drm_encoder *encoder = connector->encoder; | |
314 | struct drm_crtc *crtc = encoder ? encoder->crtc : NULL; | |
ddcd49ed | 315 | if (crtc && crtc->fb == fb) |
cd5351f4 | 316 | return connector; |
ddcd49ed | 317 | |
cd5351f4 RC |
318 | } |
319 | } | |
320 | ||
321 | return NULL; | |
322 | } | |
323 | ||
324 | /* flush an area of the framebuffer (in case of manual update display that | |
325 | * is not automatically flushed) | |
326 | */ | |
327 | void omap_framebuffer_flush(struct drm_framebuffer *fb, | |
328 | int x, int y, int w, int h) | |
329 | { | |
330 | struct drm_connector *connector = NULL; | |
331 | ||
332 | VERB("flush: %d,%d %dx%d, fb=%p", x, y, w, h, fb); | |
333 | ||
334 | while ((connector = omap_framebuffer_get_next_connector(fb, connector))) { | |
335 | /* only consider connectors that are part of a chain */ | |
336 | if (connector->encoder && connector->encoder->crtc) { | |
337 | /* TODO: maybe this should propagate thru the crtc who | |
338 | * could do the coordinate translation.. | |
339 | */ | |
340 | struct drm_crtc *crtc = connector->encoder->crtc; | |
341 | int cx = max(0, x - crtc->x); | |
342 | int cy = max(0, y - crtc->y); | |
343 | int cw = w + (x - crtc->x) - cx; | |
344 | int ch = h + (y - crtc->y) - cy; | |
345 | ||
346 | omap_connector_flush(connector, cx, cy, cw, ch); | |
347 | } | |
348 | } | |
349 | } | |
350 | ||
f6b6036e RC |
351 | #ifdef CONFIG_DEBUG_FS |
352 | void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m) | |
353 | { | |
354 | struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); | |
355 | int i, n = drm_format_num_planes(fb->pixel_format); | |
356 | ||
357 | seq_printf(m, "fb: %dx%d@%4.4s\n", fb->width, fb->height, | |
358 | (char *)&fb->pixel_format); | |
359 | ||
360 | for (i = 0; i < n; i++) { | |
361 | struct plane *plane = &omap_fb->planes[i]; | |
362 | seq_printf(m, " %d: offset=%d pitch=%d, obj: ", | |
363 | i, plane->offset, plane->pitch); | |
364 | omap_gem_describe(plane->bo, m); | |
365 | } | |
366 | } | |
367 | #endif | |
368 | ||
cd5351f4 | 369 | struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev, |
ae43d7ca | 370 | struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd) |
cd5351f4 | 371 | { |
ae43d7ca | 372 | struct drm_gem_object *bos[4]; |
cd5351f4 | 373 | struct drm_framebuffer *fb; |
ae43d7ca RC |
374 | int ret; |
375 | ||
376 | ret = objects_lookup(dev, file, mode_cmd->pixel_format, | |
377 | bos, mode_cmd->handles); | |
378 | if (ret) | |
379 | return ERR_PTR(ret); | |
380 | ||
381 | fb = omap_framebuffer_init(dev, mode_cmd, bos); | |
382 | if (IS_ERR(fb)) { | |
383 | int i, n = drm_format_num_planes(mode_cmd->pixel_format); | |
384 | for (i = 0; i < n; i++) | |
385 | drm_gem_object_unreference_unlocked(bos[i]); | |
386 | return fb; | |
cd5351f4 RC |
387 | } |
388 | return fb; | |
389 | } | |
390 | ||
391 | struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev, | |
ae43d7ca | 392 | struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos) |
cd5351f4 RC |
393 | { |
394 | struct omap_framebuffer *omap_fb; | |
395 | struct drm_framebuffer *fb = NULL; | |
ae43d7ca | 396 | const struct format *format = NULL; |
9a0774e0 | 397 | int ret, i, n = drm_format_num_planes(mode_cmd->pixel_format); |
cd5351f4 | 398 | |
ae43d7ca | 399 | DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%4.4s)", |
cd5351f4 | 400 | dev, mode_cmd, mode_cmd->width, mode_cmd->height, |
ae43d7ca RC |
401 | (char *)&mode_cmd->pixel_format); |
402 | ||
403 | for (i = 0; i < ARRAY_SIZE(formats); i++) { | |
404 | if (formats[i].pixel_format == mode_cmd->pixel_format) { | |
405 | format = &formats[i]; | |
406 | break; | |
407 | } | |
408 | } | |
409 | ||
410 | if (!format) { | |
411 | dev_err(dev->dev, "unsupported pixel format: %4.4s\n", | |
412 | (char *)&mode_cmd->pixel_format); | |
413 | ret = -EINVAL; | |
414 | goto fail; | |
415 | } | |
cd5351f4 | 416 | |
cd5351f4 RC |
417 | omap_fb = kzalloc(sizeof(*omap_fb), GFP_KERNEL); |
418 | if (!omap_fb) { | |
ae43d7ca | 419 | ret = -ENOMEM; |
cd5351f4 RC |
420 | goto fail; |
421 | } | |
422 | ||
423 | fb = &omap_fb->base; | |
9a0774e0 | 424 | omap_fb->format = format; |
cd5351f4 | 425 | |
9a0774e0 RC |
426 | for (i = 0; i < n; i++) { |
427 | struct plane *plane = &omap_fb->planes[i]; | |
428 | int size, pitch = mode_cmd->pitches[i]; | |
cd5351f4 | 429 | |
9a0774e0 RC |
430 | if (pitch < (mode_cmd->width * format->planes[i].stride_bpp)) { |
431 | dev_err(dev->dev, "provided buffer pitch is too small! %d < %d\n", | |
432 | pitch, mode_cmd->width * format->planes[i].stride_bpp); | |
433 | ret = -EINVAL; | |
434 | goto fail; | |
435 | } | |
cd5351f4 | 436 | |
9a0774e0 RC |
437 | size = pitch * mode_cmd->height / format->planes[i].sub_y; |
438 | ||
3c810c61 | 439 | if (size > (omap_gem_mmap_size(bos[i]) - mode_cmd->offsets[i])) { |
9a0774e0 RC |
440 | dev_err(dev->dev, "provided buffer object is too small! %d < %d\n", |
441 | bos[i]->size - mode_cmd->offsets[i], size); | |
442 | ret = -EINVAL; | |
443 | goto fail; | |
444 | } | |
445 | ||
446 | plane->bo = bos[i]; | |
447 | plane->offset = mode_cmd->offsets[i]; | |
9f18c95a RC |
448 | plane->pitch = pitch; |
449 | plane->paddr = 0; | |
cd5351f4 RC |
450 | } |
451 | ||
452 | drm_helper_mode_fill_fb_struct(fb, mode_cmd); | |
453 | ||
c7d73f6a DV |
454 | ret = drm_framebuffer_init(dev, fb, &omap_framebuffer_funcs); |
455 | if (ret) { | |
456 | dev_err(dev->dev, "framebuffer init failed: %d\n", ret); | |
457 | goto fail; | |
458 | } | |
459 | ||
460 | DBG("create: FB ID: %d (%p)", fb->base.id, fb); | |
461 | ||
cd5351f4 RC |
462 | return fb; |
463 | ||
464 | fail: | |
ddcd49ed | 465 | if (fb) |
cd5351f4 | 466 | omap_framebuffer_destroy(fb); |
ddcd49ed | 467 | |
ae43d7ca | 468 | return ERR_PTR(ret); |
cd5351f4 | 469 | } |