Commit | Line | Data |
---|---|---|
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 | ||
126 | for (i = 0; i < num_clips; i++) { | |
127 | omap_framebuffer_flush(fb, clips[i].x1, clips[i].y1, | |
128 | clips[i].x2 - clips[i].x1, | |
129 | clips[i].y2 - clips[i].y1); | |
130 | } | |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
135 | static const struct drm_framebuffer_funcs omap_framebuffer_funcs = { | |
136 | .create_handle = omap_framebuffer_create_handle, | |
137 | .destroy = omap_framebuffer_destroy, | |
138 | .dirty = omap_framebuffer_dirty, | |
139 | }; | |
140 | ||
3c810c61 RC |
141 | static uint32_t get_linear_addr(struct plane *plane, |
142 | const struct format *format, int n, int x, int y) | |
143 | { | |
144 | uint32_t offset; | |
145 | ||
146 | offset = plane->offset + | |
147 | (x * format->planes[n].stride_bpp) + | |
148 | (y * plane->pitch / format->planes[n].sub_y); | |
149 | ||
150 | return plane->paddr + offset; | |
151 | } | |
152 | ||
9a0774e0 RC |
153 | /* update ovl info for scanout, handles cases of multi-planar fb's, etc. |
154 | */ | |
3c810c61 RC |
155 | void omap_framebuffer_update_scanout(struct drm_framebuffer *fb, |
156 | struct omap_drm_window *win, struct omap_overlay_info *info) | |
9a0774e0 RC |
157 | { |
158 | struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); | |
159 | const struct format *format = omap_fb->format; | |
160 | struct plane *plane = &omap_fb->planes[0]; | |
3c810c61 RC |
161 | uint32_t x, y, orient = 0; |
162 | ||
163 | info->color_mode = format->dss_format; | |
164 | ||
165 | info->pos_x = win->crtc_x; | |
166 | info->pos_y = win->crtc_y; | |
167 | info->out_width = win->crtc_w; | |
168 | info->out_height = win->crtc_h; | |
169 | info->width = win->src_w; | |
170 | info->height = win->src_h; | |
171 | ||
172 | x = win->src_x; | |
173 | y = win->src_y; | |
174 | ||
175 | if (omap_gem_flags(plane->bo) & OMAP_BO_TILED) { | |
176 | uint32_t w = win->src_w; | |
177 | uint32_t h = win->src_h; | |
178 | ||
179 | switch (win->rotation & 0xf) { | |
180 | default: | |
181 | dev_err(fb->dev->dev, "invalid rotation: %02x", | |
182 | (uint32_t)win->rotation); | |
183 | /* fallthru to default to no rotation */ | |
184 | case 0: | |
185 | case BIT(DRM_ROTATE_0): | |
186 | orient = 0; | |
187 | break; | |
188 | case BIT(DRM_ROTATE_90): | |
189 | orient = MASK_XY_FLIP | MASK_X_INVERT; | |
190 | break; | |
191 | case BIT(DRM_ROTATE_180): | |
192 | orient = MASK_X_INVERT | MASK_Y_INVERT; | |
193 | break; | |
194 | case BIT(DRM_ROTATE_270): | |
195 | orient = MASK_XY_FLIP | MASK_Y_INVERT; | |
196 | break; | |
197 | } | |
9a0774e0 | 198 | |
3c810c61 RC |
199 | if (win->rotation & BIT(DRM_REFLECT_X)) |
200 | orient ^= MASK_X_INVERT; | |
201 | ||
202 | if (win->rotation & BIT(DRM_REFLECT_Y)) | |
203 | orient ^= MASK_Y_INVERT; | |
204 | ||
205 | /* adjust x,y offset for flip/invert: */ | |
206 | if (orient & MASK_XY_FLIP) | |
207 | swap(w, h); | |
208 | if (orient & MASK_Y_INVERT) | |
209 | y += h - 1; | |
210 | if (orient & MASK_X_INVERT) | |
211 | x += w - 1; | |
9a0774e0 | 212 | |
3c810c61 RC |
213 | omap_gem_rotated_paddr(plane->bo, orient, x, y, &info->paddr); |
214 | info->rotation_type = OMAP_DSS_ROT_TILER; | |
215 | info->screen_width = omap_gem_tiled_stride(plane->bo, orient); | |
216 | } else { | |
217 | info->paddr = get_linear_addr(plane, format, 0, x, y); | |
218 | info->rotation_type = OMAP_DSS_ROT_DMA; | |
219 | info->screen_width = plane->pitch; | |
220 | } | |
221 | ||
222 | /* convert to pixels: */ | |
223 | info->screen_width /= format->planes[0].stride_bpp; | |
9a0774e0 RC |
224 | |
225 | if (format->dss_format == OMAP_DSS_COLOR_NV12) { | |
226 | plane = &omap_fb->planes[1]; | |
3c810c61 RC |
227 | |
228 | if (info->rotation_type == OMAP_DSS_ROT_TILER) { | |
229 | WARN_ON(!(omap_gem_flags(plane->bo) & OMAP_BO_TILED)); | |
230 | omap_gem_rotated_paddr(plane->bo, orient, | |
231 | x/2, y/2, &info->p_uv_addr); | |
232 | } else { | |
233 | info->p_uv_addr = get_linear_addr(plane, format, 1, x, y); | |
234 | } | |
9a0774e0 RC |
235 | } else { |
236 | info->p_uv_addr = 0; | |
237 | } | |
238 | } | |
239 | ||
b33f34d3 | 240 | /* Call for unpin 'a' (if not NULL), and pin 'b' (if not NULL). Although |
6354eb81 | 241 | * buffers to unpin are just pushed to the unpin fifo so that the |
b33f34d3 RC |
242 | * caller can defer unpin until vblank. |
243 | * | |
244 | * Note if this fails (ie. something went very wrong!), all buffers are | |
245 | * unpinned, and the caller disables the overlay. We could have tried | |
246 | * to revert back to the previous set of pinned buffers but if things are | |
247 | * hosed there is no guarantee that would succeed. | |
248 | */ | |
249 | int omap_framebuffer_replace(struct drm_framebuffer *a, | |
250 | struct drm_framebuffer *b, void *arg, | |
251 | void (*unpin)(void *arg, struct drm_gem_object *bo)) | |
252 | { | |
253 | int ret = 0, i, na, nb; | |
254 | struct omap_framebuffer *ofba = to_omap_framebuffer(a); | |
255 | struct omap_framebuffer *ofbb = to_omap_framebuffer(b); | |
b74af83d | 256 | uint32_t pinned_mask = 0; |
b33f34d3 RC |
257 | |
258 | na = a ? drm_format_num_planes(a->pixel_format) : 0; | |
259 | nb = b ? drm_format_num_planes(b->pixel_format) : 0; | |
260 | ||
261 | for (i = 0; i < max(na, nb); i++) { | |
262 | struct plane *pa, *pb; | |
263 | ||
264 | pa = (i < na) ? &ofba->planes[i] : NULL; | |
265 | pb = (i < nb) ? &ofbb->planes[i] : NULL; | |
266 | ||
b74af83d | 267 | if (pa) |
b33f34d3 | 268 | unpin(arg, pa->bo); |
b33f34d3 | 269 | |
8b6b569e | 270 | if (pb && !ret) { |
b33f34d3 | 271 | ret = omap_gem_get_paddr(pb->bo, &pb->paddr, true); |
b74af83d | 272 | if (!ret) { |
8b6b569e | 273 | omap_gem_dma_sync(pb->bo, DMA_TO_DEVICE); |
b74af83d RC |
274 | pinned_mask |= (1 << i); |
275 | } | |
8b6b569e | 276 | } |
b33f34d3 RC |
277 | } |
278 | ||
279 | if (ret) { | |
280 | /* something went wrong.. unpin what has been pinned */ | |
281 | for (i = 0; i < nb; i++) { | |
b74af83d RC |
282 | if (pinned_mask & (1 << i)) { |
283 | struct plane *pb = &ofba->planes[i]; | |
b33f34d3 | 284 | unpin(arg, pb->bo); |
b33f34d3 RC |
285 | } |
286 | } | |
287 | } | |
288 | ||
289 | return ret; | |
290 | } | |
291 | ||
9a0774e0 RC |
292 | struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb, int p) |
293 | { | |
294 | struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); | |
9f18c95a | 295 | if (p >= drm_format_num_planes(fb->pixel_format)) |
9a0774e0 RC |
296 | return NULL; |
297 | return omap_fb->planes[p].bo; | |
cd5351f4 RC |
298 | } |
299 | ||
300 | /* iterate thru all the connectors, returning ones that are attached | |
301 | * to the same fb.. | |
302 | */ | |
303 | struct drm_connector *omap_framebuffer_get_next_connector( | |
304 | struct drm_framebuffer *fb, struct drm_connector *from) | |
305 | { | |
306 | struct drm_device *dev = fb->dev; | |
307 | struct list_head *connector_list = &dev->mode_config.connector_list; | |
308 | struct drm_connector *connector = from; | |
309 | ||
ddcd49ed | 310 | if (!from) |
cd5351f4 | 311 | return list_first_entry(connector_list, typeof(*from), head); |
cd5351f4 RC |
312 | |
313 | list_for_each_entry_from(connector, connector_list, head) { | |
314 | if (connector != from) { | |
315 | struct drm_encoder *encoder = connector->encoder; | |
316 | struct drm_crtc *crtc = encoder ? encoder->crtc : NULL; | |
ddcd49ed | 317 | if (crtc && crtc->fb == fb) |
cd5351f4 | 318 | return connector; |
ddcd49ed | 319 | |
cd5351f4 RC |
320 | } |
321 | } | |
322 | ||
323 | return NULL; | |
324 | } | |
325 | ||
326 | /* flush an area of the framebuffer (in case of manual update display that | |
327 | * is not automatically flushed) | |
328 | */ | |
329 | void omap_framebuffer_flush(struct drm_framebuffer *fb, | |
330 | int x, int y, int w, int h) | |
331 | { | |
332 | struct drm_connector *connector = NULL; | |
333 | ||
334 | VERB("flush: %d,%d %dx%d, fb=%p", x, y, w, h, fb); | |
335 | ||
336 | while ((connector = omap_framebuffer_get_next_connector(fb, connector))) { | |
337 | /* only consider connectors that are part of a chain */ | |
338 | if (connector->encoder && connector->encoder->crtc) { | |
339 | /* TODO: maybe this should propagate thru the crtc who | |
340 | * could do the coordinate translation.. | |
341 | */ | |
342 | struct drm_crtc *crtc = connector->encoder->crtc; | |
343 | int cx = max(0, x - crtc->x); | |
344 | int cy = max(0, y - crtc->y); | |
345 | int cw = w + (x - crtc->x) - cx; | |
346 | int ch = h + (y - crtc->y) - cy; | |
347 | ||
348 | omap_connector_flush(connector, cx, cy, cw, ch); | |
349 | } | |
350 | } | |
351 | } | |
352 | ||
f6b6036e RC |
353 | #ifdef CONFIG_DEBUG_FS |
354 | void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m) | |
355 | { | |
356 | struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb); | |
357 | int i, n = drm_format_num_planes(fb->pixel_format); | |
358 | ||
359 | seq_printf(m, "fb: %dx%d@%4.4s\n", fb->width, fb->height, | |
360 | (char *)&fb->pixel_format); | |
361 | ||
362 | for (i = 0; i < n; i++) { | |
363 | struct plane *plane = &omap_fb->planes[i]; | |
364 | seq_printf(m, " %d: offset=%d pitch=%d, obj: ", | |
365 | i, plane->offset, plane->pitch); | |
366 | omap_gem_describe(plane->bo, m); | |
367 | } | |
368 | } | |
369 | #endif | |
370 | ||
cd5351f4 | 371 | struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev, |
ae43d7ca | 372 | struct drm_file *file, struct drm_mode_fb_cmd2 *mode_cmd) |
cd5351f4 | 373 | { |
ae43d7ca | 374 | struct drm_gem_object *bos[4]; |
cd5351f4 | 375 | struct drm_framebuffer *fb; |
ae43d7ca RC |
376 | int ret; |
377 | ||
378 | ret = objects_lookup(dev, file, mode_cmd->pixel_format, | |
379 | bos, mode_cmd->handles); | |
380 | if (ret) | |
381 | return ERR_PTR(ret); | |
382 | ||
383 | fb = omap_framebuffer_init(dev, mode_cmd, bos); | |
384 | if (IS_ERR(fb)) { | |
385 | int i, n = drm_format_num_planes(mode_cmd->pixel_format); | |
386 | for (i = 0; i < n; i++) | |
387 | drm_gem_object_unreference_unlocked(bos[i]); | |
388 | return fb; | |
cd5351f4 RC |
389 | } |
390 | return fb; | |
391 | } | |
392 | ||
393 | struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev, | |
ae43d7ca | 394 | struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos) |
cd5351f4 RC |
395 | { |
396 | struct omap_framebuffer *omap_fb; | |
397 | struct drm_framebuffer *fb = NULL; | |
ae43d7ca | 398 | const struct format *format = NULL; |
9a0774e0 | 399 | int ret, i, n = drm_format_num_planes(mode_cmd->pixel_format); |
cd5351f4 | 400 | |
ae43d7ca | 401 | DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%4.4s)", |
cd5351f4 | 402 | dev, mode_cmd, mode_cmd->width, mode_cmd->height, |
ae43d7ca RC |
403 | (char *)&mode_cmd->pixel_format); |
404 | ||
405 | for (i = 0; i < ARRAY_SIZE(formats); i++) { | |
406 | if (formats[i].pixel_format == mode_cmd->pixel_format) { | |
407 | format = &formats[i]; | |
408 | break; | |
409 | } | |
410 | } | |
411 | ||
412 | if (!format) { | |
413 | dev_err(dev->dev, "unsupported pixel format: %4.4s\n", | |
414 | (char *)&mode_cmd->pixel_format); | |
415 | ret = -EINVAL; | |
416 | goto fail; | |
417 | } | |
cd5351f4 | 418 | |
cd5351f4 RC |
419 | omap_fb = kzalloc(sizeof(*omap_fb), GFP_KERNEL); |
420 | if (!omap_fb) { | |
ae43d7ca | 421 | ret = -ENOMEM; |
cd5351f4 RC |
422 | goto fail; |
423 | } | |
424 | ||
425 | fb = &omap_fb->base; | |
9a0774e0 | 426 | omap_fb->format = format; |
cd5351f4 | 427 | |
9a0774e0 RC |
428 | for (i = 0; i < n; i++) { |
429 | struct plane *plane = &omap_fb->planes[i]; | |
430 | int size, pitch = mode_cmd->pitches[i]; | |
cd5351f4 | 431 | |
9a0774e0 RC |
432 | if (pitch < (mode_cmd->width * format->planes[i].stride_bpp)) { |
433 | dev_err(dev->dev, "provided buffer pitch is too small! %d < %d\n", | |
434 | pitch, mode_cmd->width * format->planes[i].stride_bpp); | |
435 | ret = -EINVAL; | |
436 | goto fail; | |
437 | } | |
cd5351f4 | 438 | |
9a0774e0 RC |
439 | size = pitch * mode_cmd->height / format->planes[i].sub_y; |
440 | ||
3c810c61 | 441 | if (size > (omap_gem_mmap_size(bos[i]) - mode_cmd->offsets[i])) { |
9a0774e0 RC |
442 | dev_err(dev->dev, "provided buffer object is too small! %d < %d\n", |
443 | bos[i]->size - mode_cmd->offsets[i], size); | |
444 | ret = -EINVAL; | |
445 | goto fail; | |
446 | } | |
447 | ||
448 | plane->bo = bos[i]; | |
449 | plane->offset = mode_cmd->offsets[i]; | |
9f18c95a RC |
450 | plane->pitch = pitch; |
451 | plane->paddr = 0; | |
cd5351f4 RC |
452 | } |
453 | ||
454 | drm_helper_mode_fill_fb_struct(fb, mode_cmd); | |
455 | ||
c7d73f6a DV |
456 | ret = drm_framebuffer_init(dev, fb, &omap_framebuffer_funcs); |
457 | if (ret) { | |
458 | dev_err(dev->dev, "framebuffer init failed: %d\n", ret); | |
459 | goto fail; | |
460 | } | |
461 | ||
462 | DBG("create: FB ID: %d (%p)", fb->base.id, fb); | |
463 | ||
cd5351f4 RC |
464 | return fb; |
465 | ||
466 | fail: | |
ddcd49ed | 467 | if (fb) |
cd5351f4 | 468 | omap_framebuffer_destroy(fb); |
ddcd49ed | 469 | |
ae43d7ca | 470 | return ERR_PTR(ret); |
cd5351f4 | 471 | } |