blob: 4d264fd554d8f7d80ba63011b9250b562db90253 [file] [log] [blame]
Rob Clarkcd5351f2011-11-12 12:09:40 -06001/*
Andrew F. Davisbb5cdf82017-12-05 14:29:31 -06002 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
Rob Clarkcd5351f2011-11-12 12:09:40 -06003 * Author: Rob Clark <rob@ti.com>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
Arnd Bergmann2d802452016-05-11 18:01:45 +020018#include <linux/seq_file.h>
19
Laurent Pinchart2d278f52015-03-05 21:31:37 +020020#include <drm/drm_crtc.h>
21#include <drm/drm_crtc_helper.h>
Daniel Stone3e442552018-03-30 15:11:20 +010022#include <drm/drm_gem_framebuffer_helper.h>
Rob Clarkcd5351f2011-11-12 12:09:40 -060023
Laurent Pinchart2d278f52015-03-05 21:31:37 +020024#include "omap_dmm_tiler.h"
25#include "omap_drv.h"
Rob Clarkcd5351f2011-11-12 12:09:40 -060026
Rob Clarkcd5351f2011-11-12 12:09:40 -060027/*
28 * framebuffer funcs
29 */
30
Tomi Valkeinenc2e52e32017-05-04 11:29:58 +030031static const u32 formats[] = {
Rob Clarkae43d7c2012-01-16 12:51:15 -060032 /* 16bpp [A]RGB: */
Tomi Valkeinenc2e52e32017-05-04 11:29:58 +030033 DRM_FORMAT_RGB565, /* RGB16-565 */
34 DRM_FORMAT_RGBX4444, /* RGB12x-4444 */
35 DRM_FORMAT_XRGB4444, /* xRGB12-4444 */
36 DRM_FORMAT_RGBA4444, /* RGBA12-4444 */
37 DRM_FORMAT_ARGB4444, /* ARGB16-4444 */
38 DRM_FORMAT_XRGB1555, /* xRGB15-1555 */
39 DRM_FORMAT_ARGB1555, /* ARGB16-1555 */
Rob Clarkae43d7c2012-01-16 12:51:15 -060040 /* 24bpp RGB: */
Tomi Valkeinenc2e52e32017-05-04 11:29:58 +030041 DRM_FORMAT_RGB888, /* RGB24-888 */
Rob Clarkae43d7c2012-01-16 12:51:15 -060042 /* 32bpp [A]RGB: */
Tomi Valkeinenc2e52e32017-05-04 11:29:58 +030043 DRM_FORMAT_RGBX8888, /* RGBx24-8888 */
44 DRM_FORMAT_XRGB8888, /* xRGB24-8888 */
45 DRM_FORMAT_RGBA8888, /* RGBA32-8888 */
46 DRM_FORMAT_ARGB8888, /* ARGB32-8888 */
Rob Clarkae43d7c2012-01-16 12:51:15 -060047 /* YUV: */
Tomi Valkeinenc2e52e32017-05-04 11:29:58 +030048 DRM_FORMAT_NV12,
49 DRM_FORMAT_YUYV,
50 DRM_FORMAT_UYVY,
Rob Clarkae43d7c2012-01-16 12:51:15 -060051};
52
Rob Clark9a0774e2012-01-16 12:51:17 -060053/* per-plane info for the fb: */
54struct plane {
Laurent Pinchart16869082017-04-21 00:33:51 +030055 dma_addr_t dma_addr;
Rob Clark9a0774e2012-01-16 12:51:17 -060056};
57
Rob Clarkcd5351f2011-11-12 12:09:40 -060058#define to_omap_framebuffer(x) container_of(x, struct omap_framebuffer, base)
59
60struct omap_framebuffer {
61 struct drm_framebuffer base;
Tomi Valkeinenf36eb5a2014-09-03 19:25:54 +000062 int pin_count;
Laurent Pinchartc9028b32016-06-07 00:45:35 +030063 const struct drm_format_info *format;
Laurent Pinchart4d20dfc2016-03-26 19:24:01 +020064 struct plane planes[2];
Laurent Pinchart16869082017-04-21 00:33:51 +030065 /* lock for pinning (pin_count and planes.dma_addr) */
Tomi Valkeinenf524ab72015-06-04 10:56:33 +030066 struct mutex lock;
Rob Clarkcd5351f2011-11-12 12:09:40 -060067};
68
Rob Clarkcd5351f2011-11-12 12:09:40 -060069static const struct drm_framebuffer_funcs omap_framebuffer_funcs = {
Daniel Stone3e442552018-03-30 15:11:20 +010070 .create_handle = drm_gem_fb_create_handle,
71 .destroy = drm_gem_fb_destroy,
Rob Clarkcd5351f2011-11-12 12:09:40 -060072};
73
Daniel Stone2ecceeb2018-03-30 15:11:21 +010074static u32 get_linear_addr(struct drm_framebuffer *fb,
Laurent Pinchartc9028b32016-06-07 00:45:35 +030075 const struct drm_format_info *format, int n, int x, int y)
Rob Clark3c810c62012-08-15 15:18:01 -050076{
Daniel Stone2ecceeb2018-03-30 15:11:21 +010077 struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
78 struct plane *plane = &omap_fb->planes[n];
Laurent Pinchartdfe9cfc2018-02-11 15:07:33 +020079 u32 offset;
Rob Clark3c810c62012-08-15 15:18:01 -050080
Daniel Stone2ecceeb2018-03-30 15:11:21 +010081 offset = fb->offsets[n]
Laurent Pinchartc9028b32016-06-07 00:45:35 +030082 + (x * format->cpp[n] / (n == 0 ? 1 : format->hsub))
Daniel Stone2ecceeb2018-03-30 15:11:21 +010083 + (y * fb->pitches[n] / (n == 0 ? 1 : format->vsub));
Rob Clark3c810c62012-08-15 15:18:01 -050084
Laurent Pinchart16869082017-04-21 00:33:51 +030085 return plane->dma_addr + offset;
Rob Clark3c810c62012-08-15 15:18:01 -050086}
87
Tomi Valkeinenbfeece52015-08-27 13:09:22 +030088bool omap_framebuffer_supports_rotation(struct drm_framebuffer *fb)
89{
Daniel Stone3e442552018-03-30 15:11:20 +010090 return omap_gem_flags(fb->obj[0]) & OMAP_BO_TILED;
Tomi Valkeinenbfeece52015-08-27 13:09:22 +030091}
92
Tomi Valkeinen8958aeb2017-05-15 12:57:46 +030093/* Note: DRM rotates counter-clockwise, TILER & DSS rotates clockwise */
Laurent Pinchartdfe9cfc2018-02-11 15:07:33 +020094static u32 drm_rotation_to_tiler(unsigned int drm_rot)
Tomi Valkeinen8958aeb2017-05-15 12:57:46 +030095{
Laurent Pinchartdfe9cfc2018-02-11 15:07:33 +020096 u32 orient;
Tomi Valkeinen8958aeb2017-05-15 12:57:46 +030097
98 switch (drm_rot & DRM_MODE_ROTATE_MASK) {
99 default:
100 case DRM_MODE_ROTATE_0:
101 orient = 0;
102 break;
103 case DRM_MODE_ROTATE_90:
104 orient = MASK_XY_FLIP | MASK_X_INVERT;
105 break;
106 case DRM_MODE_ROTATE_180:
107 orient = MASK_X_INVERT | MASK_Y_INVERT;
108 break;
109 case DRM_MODE_ROTATE_270:
110 orient = MASK_XY_FLIP | MASK_Y_INVERT;
111 break;
112 }
113
114 if (drm_rot & DRM_MODE_REFLECT_X)
115 orient ^= MASK_X_INVERT;
116
117 if (drm_rot & DRM_MODE_REFLECT_Y)
118 orient ^= MASK_Y_INVERT;
119
120 return orient;
121}
122
Rob Clark9a0774e2012-01-16 12:51:17 -0600123/* update ovl info for scanout, handles cases of multi-planar fb's, etc.
124 */
Rob Clark3c810c62012-08-15 15:18:01 -0500125void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
Tomi Valkeinen218ed532017-05-15 13:40:08 +0300126 struct drm_plane_state *state, struct omap_overlay_info *info)
Rob Clark9a0774e2012-01-16 12:51:17 -0600127{
128 struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
Laurent Pinchartc9028b32016-06-07 00:45:35 +0300129 const struct drm_format_info *format = omap_fb->format;
Rob Clark9a0774e2012-01-16 12:51:17 -0600130 struct plane *plane = &omap_fb->planes[0];
Laurent Pinchartdfe9cfc2018-02-11 15:07:33 +0200131 u32 x, y, orient = 0;
Rob Clark9a0774e2012-01-16 12:51:17 -0600132
Tomi Valkeinen41aff422017-05-04 11:31:56 +0300133 info->fourcc = fb->format->format;
Rob Clark9a0774e2012-01-16 12:51:17 -0600134
Tomi Valkeinen218ed532017-05-15 13:40:08 +0300135 info->pos_x = state->crtc_x;
136 info->pos_y = state->crtc_y;
137 info->out_width = state->crtc_w;
138 info->out_height = state->crtc_h;
139 info->width = state->src_w >> 16;
140 info->height = state->src_h >> 16;
Rob Clark3c810c62012-08-15 15:18:01 -0500141
Tomi Valkeinen218ed532017-05-15 13:40:08 +0300142 /* DSS driver wants the w & h in rotated orientation */
143 if (drm_rotation_90_or_270(state->rotation))
144 swap(info->width, info->height);
145
146 x = state->src_x >> 16;
147 y = state->src_y >> 16;
Rob Clark3c810c62012-08-15 15:18:01 -0500148
Daniel Stone3e442552018-03-30 15:11:20 +0100149 if (omap_gem_flags(fb->obj[0]) & OMAP_BO_TILED) {
Laurent Pinchartdfe9cfc2018-02-11 15:07:33 +0200150 u32 w = state->src_w >> 16;
151 u32 h = state->src_h >> 16;
Rob Clark3c810c62012-08-15 15:18:01 -0500152
Tomi Valkeinen218ed532017-05-15 13:40:08 +0300153 orient = drm_rotation_to_tiler(state->rotation);
Rob Clark3c810c62012-08-15 15:18:01 -0500154
Tomi Valkeinenc4df6e42017-05-15 11:09:25 +0300155 /*
156 * omap_gem_rotated_paddr() wants the x & y in tiler units.
157 * Usually tiler unit size is the same as the pixel size, except
158 * for YUV422 formats, for which the tiler unit size is 32 bits
159 * and pixel size is 16 bits.
160 */
161 if (fb->format->format == DRM_FORMAT_UYVY ||
162 fb->format->format == DRM_FORMAT_YUYV) {
163 x /= 2;
164 w /= 2;
165 }
166
Tomi Valkeinen218ed532017-05-15 13:40:08 +0300167 /* adjust x,y offset for invert: */
Rob Clark3c810c62012-08-15 15:18:01 -0500168 if (orient & MASK_Y_INVERT)
169 y += h - 1;
170 if (orient & MASK_X_INVERT)
171 x += w - 1;
172
Tomi Valkeinenc4df6e42017-05-15 11:09:25 +0300173 /* Note: x and y are in TILER units, not pixels */
Daniel Stone3e442552018-03-30 15:11:20 +0100174 omap_gem_rotated_dma_addr(fb->obj[0], orient, x, y,
Laurent Pinchart16869082017-04-21 00:33:51 +0300175 &info->paddr);
Rob Clark3c810c62012-08-15 15:18:01 -0500176 info->rotation_type = OMAP_DSS_ROT_TILER;
Tomi Valkeinen16f9ede2017-05-16 12:48:58 +0300177 info->rotation = state->rotation ?: DRM_MODE_ROTATE_0;
Tomi Valkeinenc4df6e42017-05-15 11:09:25 +0300178 /* Note: stride in TILER units, not pixels */
Daniel Stone3e442552018-03-30 15:11:20 +0100179 info->screen_width = omap_gem_tiled_stride(fb->obj[0], orient);
Rob Clark3c810c62012-08-15 15:18:01 -0500180 } else {
Tomi Valkeinen218ed532017-05-15 13:40:08 +0300181 switch (state->rotation & DRM_MODE_ROTATE_MASK) {
Tomi Valkeinen5ac96342014-04-08 16:18:41 +0300182 case 0:
Robert Fossc2c446a2017-05-19 16:50:17 -0400183 case DRM_MODE_ROTATE_0:
Tomi Valkeinen5ac96342014-04-08 16:18:41 +0300184 /* OK */
185 break;
186
187 default:
188 dev_warn(fb->dev->dev,
189 "rotation '%d' ignored for non-tiled fb\n",
Tomi Valkeinen218ed532017-05-15 13:40:08 +0300190 state->rotation);
Tomi Valkeinen5ac96342014-04-08 16:18:41 +0300191 break;
192 }
193
Daniel Stone2ecceeb2018-03-30 15:11:21 +0100194 info->paddr = get_linear_addr(fb, format, 0, x, y);
Tomi Valkeinen517a8a952017-05-03 14:14:27 +0300195 info->rotation_type = OMAP_DSS_ROT_NONE;
Tomi Valkeinen16f9ede2017-05-16 12:48:58 +0300196 info->rotation = DRM_MODE_ROTATE_0;
Daniel Stone2ecceeb2018-03-30 15:11:21 +0100197 info->screen_width = fb->pitches[0];
Rob Clark3c810c62012-08-15 15:18:01 -0500198 }
199
200 /* convert to pixels: */
Laurent Pinchartc9028b32016-06-07 00:45:35 +0300201 info->screen_width /= format->cpp[0];
Rob Clark9a0774e2012-01-16 12:51:17 -0600202
Tomi Valkeinenc2e52e32017-05-04 11:29:58 +0300203 if (fb->format->format == DRM_FORMAT_NV12) {
Rob Clark9a0774e2012-01-16 12:51:17 -0600204 plane = &omap_fb->planes[1];
Rob Clark3c810c62012-08-15 15:18:01 -0500205
206 if (info->rotation_type == OMAP_DSS_ROT_TILER) {
Daniel Stone3e442552018-03-30 15:11:20 +0100207 WARN_ON(!(omap_gem_flags(fb->obj[1]) & OMAP_BO_TILED));
208 omap_gem_rotated_dma_addr(fb->obj[1], orient, x/2, y/2,
Laurent Pinchart16869082017-04-21 00:33:51 +0300209 &info->p_uv_addr);
Rob Clark3c810c62012-08-15 15:18:01 -0500210 } else {
Daniel Stone2ecceeb2018-03-30 15:11:21 +0100211 info->p_uv_addr = get_linear_addr(fb, format, 1, x, y);
Rob Clark3c810c62012-08-15 15:18:01 -0500212 }
Rob Clark9a0774e2012-01-16 12:51:17 -0600213 } else {
214 info->p_uv_addr = 0;
215 }
216}
217
Rob Clark5833bd22013-08-07 13:41:21 -0400218/* pin, prepare for scanout: */
219int omap_framebuffer_pin(struct drm_framebuffer *fb)
Rob Clarkb33f34d2012-03-05 10:48:35 -0600220{
Rob Clark5833bd22013-08-07 13:41:21 -0400221 struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
Ville Syrjäläbcb0b462016-12-14 23:30:22 +0200222 int ret, i, n = fb->format->num_planes;
Rob Clarkb33f34d2012-03-05 10:48:35 -0600223
Tomi Valkeinenf524ab72015-06-04 10:56:33 +0300224 mutex_lock(&omap_fb->lock);
225
Tomi Valkeinenf36eb5a2014-09-03 19:25:54 +0000226 if (omap_fb->pin_count > 0) {
227 omap_fb->pin_count++;
Tomi Valkeinenf524ab72015-06-04 10:56:33 +0300228 mutex_unlock(&omap_fb->lock);
Tomi Valkeinenf36eb5a2014-09-03 19:25:54 +0000229 return 0;
230 }
231
Rob Clark5833bd22013-08-07 13:41:21 -0400232 for (i = 0; i < n; i++) {
233 struct plane *plane = &omap_fb->planes[i];
Daniel Stone3e442552018-03-30 15:11:20 +0100234 ret = omap_gem_pin(fb->obj[i], &plane->dma_addr);
Rob Clark5833bd22013-08-07 13:41:21 -0400235 if (ret)
236 goto fail;
Daniel Stone3e442552018-03-30 15:11:20 +0100237 omap_gem_dma_sync_buffer(fb->obj[i], DMA_TO_DEVICE);
Rob Clarkb33f34d2012-03-05 10:48:35 -0600238 }
239
Tomi Valkeinenf36eb5a2014-09-03 19:25:54 +0000240 omap_fb->pin_count++;
241
Tomi Valkeinenf524ab72015-06-04 10:56:33 +0300242 mutex_unlock(&omap_fb->lock);
243
Rob Clark5833bd22013-08-07 13:41:21 -0400244 return 0;
245
246fail:
247 for (i--; i >= 0; i--) {
248 struct plane *plane = &omap_fb->planes[i];
Daniel Stone3e442552018-03-30 15:11:20 +0100249 omap_gem_unpin(fb->obj[i]);
Laurent Pinchart16869082017-04-21 00:33:51 +0300250 plane->dma_addr = 0;
Rob Clarkb33f34d2012-03-05 10:48:35 -0600251 }
252
Tomi Valkeinenf524ab72015-06-04 10:56:33 +0300253 mutex_unlock(&omap_fb->lock);
254
Rob Clarkb33f34d2012-03-05 10:48:35 -0600255 return ret;
256}
257
Rob Clark5833bd22013-08-07 13:41:21 -0400258/* unpin, no longer being scanned out: */
Tomi Valkeinen9c368502015-04-28 14:01:35 +0300259void omap_framebuffer_unpin(struct drm_framebuffer *fb)
Rob Clark5833bd22013-08-07 13:41:21 -0400260{
261 struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
Ville Syrjäläbcb0b462016-12-14 23:30:22 +0200262 int i, n = fb->format->num_planes;
Rob Clark5833bd22013-08-07 13:41:21 -0400263
Tomi Valkeinenf524ab72015-06-04 10:56:33 +0300264 mutex_lock(&omap_fb->lock);
265
Tomi Valkeinenf36eb5a2014-09-03 19:25:54 +0000266 omap_fb->pin_count--;
267
Tomi Valkeinenf524ab72015-06-04 10:56:33 +0300268 if (omap_fb->pin_count > 0) {
269 mutex_unlock(&omap_fb->lock);
Tomi Valkeinen9c368502015-04-28 14:01:35 +0300270 return;
Tomi Valkeinenf524ab72015-06-04 10:56:33 +0300271 }
Tomi Valkeinenf36eb5a2014-09-03 19:25:54 +0000272
Rob Clark5833bd22013-08-07 13:41:21 -0400273 for (i = 0; i < n; i++) {
274 struct plane *plane = &omap_fb->planes[i];
Daniel Stone3e442552018-03-30 15:11:20 +0100275 omap_gem_unpin(fb->obj[i]);
Laurent Pinchart16869082017-04-21 00:33:51 +0300276 plane->dma_addr = 0;
Rob Clark5833bd22013-08-07 13:41:21 -0400277 }
278
Tomi Valkeinenf524ab72015-06-04 10:56:33 +0300279 mutex_unlock(&omap_fb->lock);
Rob Clark5833bd22013-08-07 13:41:21 -0400280}
281
Rob Clarkf6b60362012-03-05 10:48:36 -0600282#ifdef CONFIG_DEBUG_FS
283void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m)
284{
Ville Syrjäläbcb0b462016-12-14 23:30:22 +0200285 int i, n = fb->format->num_planes;
Rob Clarkf6b60362012-03-05 10:48:36 -0600286
287 seq_printf(m, "fb: %dx%d@%4.4s\n", fb->width, fb->height,
Ville Syrjälä438b74a2016-12-14 23:32:55 +0200288 (char *)&fb->format->format);
Rob Clarkf6b60362012-03-05 10:48:36 -0600289
290 for (i = 0; i < n; i++) {
Rob Clarkf6b60362012-03-05 10:48:36 -0600291 seq_printf(m, " %d: offset=%d pitch=%d, obj: ",
Daniel Stone2ecceeb2018-03-30 15:11:21 +0100292 i, fb->offsets[n], fb->pitches[i]);
Daniel Stone3e442552018-03-30 15:11:20 +0100293 omap_gem_describe(fb->obj[i], m);
Rob Clarkf6b60362012-03-05 10:48:36 -0600294 }
295}
296#endif
297
Rob Clarkcd5351f2011-11-12 12:09:40 -0600298struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
Ville Syrjälä1eb834512015-11-11 19:11:29 +0200299 struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd)
Rob Clarkcd5351f2011-11-12 12:09:40 -0600300{
Laurent Pincharta39c94e2016-03-26 19:51:57 +0200301 unsigned int num_planes = drm_format_num_planes(mode_cmd->pixel_format);
Rob Clarkae43d7c2012-01-16 12:51:15 -0600302 struct drm_gem_object *bos[4];
Rob Clarkcd5351f2011-11-12 12:09:40 -0600303 struct drm_framebuffer *fb;
Laurent Pincharta39c94e2016-03-26 19:51:57 +0200304 int i;
Rob Clarkae43d7c2012-01-16 12:51:15 -0600305
Laurent Pincharta39c94e2016-03-26 19:51:57 +0200306 for (i = 0; i < num_planes; i++) {
307 bos[i] = drm_gem_object_lookup(file, mode_cmd->handles[i]);
308 if (!bos[i]) {
309 fb = ERR_PTR(-ENOENT);
310 goto error;
311 }
312 }
Rob Clarkae43d7c2012-01-16 12:51:15 -0600313
314 fb = omap_framebuffer_init(dev, mode_cmd, bos);
Laurent Pincharta39c94e2016-03-26 19:51:57 +0200315 if (IS_ERR(fb))
316 goto error;
317
318 return fb;
319
320error:
Tomi Valkeinen95552192017-08-04 12:20:03 +0300321 while (--i >= 0)
Thomas Zimmermanne64d0222018-06-18 15:07:26 +0200322 drm_gem_object_put_unlocked(bos[i]);
Laurent Pincharta39c94e2016-03-26 19:51:57 +0200323
Rob Clarkcd5351f2011-11-12 12:09:40 -0600324 return fb;
325}
326
327struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
Ville Syrjälä1eb834512015-11-11 19:11:29 +0200328 const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos)
Rob Clarkcd5351f2011-11-12 12:09:40 -0600329{
Laurent Pinchartc9028b32016-06-07 00:45:35 +0300330 const struct drm_format_info *format = NULL;
Tomi Valkeinen925e4942014-09-25 19:24:27 +0000331 struct omap_framebuffer *omap_fb = NULL;
Rob Clarkcd5351f2011-11-12 12:09:40 -0600332 struct drm_framebuffer *fb = NULL;
Laurent Pinchart6941e3d2016-03-26 20:01:13 +0200333 unsigned int pitch = mode_cmd->pitches[0];
Laurent Pinchartc9028b32016-06-07 00:45:35 +0300334 int ret, i;
Rob Clarkcd5351f2011-11-12 12:09:40 -0600335
Rob Clarkae43d7c2012-01-16 12:51:15 -0600336 DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%4.4s)",
Rob Clarkcd5351f2011-11-12 12:09:40 -0600337 dev, mode_cmd, mode_cmd->width, mode_cmd->height,
Rob Clarkae43d7c2012-01-16 12:51:15 -0600338 (char *)&mode_cmd->pixel_format);
339
Laurent Pinchartc9028b32016-06-07 00:45:35 +0300340 format = drm_format_info(mode_cmd->pixel_format);
341
Rob Clarkae43d7c2012-01-16 12:51:15 -0600342 for (i = 0; i < ARRAY_SIZE(formats); i++) {
Tomi Valkeinenc2e52e32017-05-04 11:29:58 +0300343 if (formats[i] == mode_cmd->pixel_format)
Rob Clarkae43d7c2012-01-16 12:51:15 -0600344 break;
Rob Clarkae43d7c2012-01-16 12:51:15 -0600345 }
346
Tomi Valkeinenc2e52e32017-05-04 11:29:58 +0300347 if (!format || i == ARRAY_SIZE(formats)) {
Laurent Pincharta078a3d2016-03-26 20:02:49 +0200348 dev_dbg(dev->dev, "unsupported pixel format: %4.4s\n",
349 (char *)&mode_cmd->pixel_format);
Rob Clarkae43d7c2012-01-16 12:51:15 -0600350 ret = -EINVAL;
351 goto fail;
352 }
Rob Clarkcd5351f2011-11-12 12:09:40 -0600353
Rob Clarkcd5351f2011-11-12 12:09:40 -0600354 omap_fb = kzalloc(sizeof(*omap_fb), GFP_KERNEL);
355 if (!omap_fb) {
Rob Clarkae43d7c2012-01-16 12:51:15 -0600356 ret = -ENOMEM;
Rob Clarkcd5351f2011-11-12 12:09:40 -0600357 goto fail;
358 }
359
360 fb = &omap_fb->base;
Rob Clark9a0774e2012-01-16 12:51:17 -0600361 omap_fb->format = format;
Tomi Valkeinenf524ab72015-06-04 10:56:33 +0300362 mutex_init(&omap_fb->lock);
Rob Clarkcd5351f2011-11-12 12:09:40 -0600363
Laurent Pinchart6941e3d2016-03-26 20:01:13 +0200364 /*
365 * The code below assumes that no format use more than two planes, and
366 * that the two planes of multiplane formats need the same number of
367 * bytes per pixel.
368 */
369 if (format->num_planes == 2 && pitch != mode_cmd->pitches[1]) {
Laurent Pincharta078a3d2016-03-26 20:02:49 +0200370 dev_dbg(dev->dev, "pitches differ between planes 0 and 1\n");
Laurent Pinchart6941e3d2016-03-26 20:01:13 +0200371 ret = -EINVAL;
372 goto fail;
373 }
374
375 if (pitch % format->cpp[0]) {
Laurent Pincharta078a3d2016-03-26 20:02:49 +0200376 dev_dbg(dev->dev,
Laurent Pinchart6941e3d2016-03-26 20:01:13 +0200377 "buffer pitch (%u bytes) is not a multiple of pixel size (%u bytes)\n",
378 pitch, format->cpp[0]);
379 ret = -EINVAL;
380 goto fail;
381 }
382
Laurent Pinchartc9028b32016-06-07 00:45:35 +0300383 for (i = 0; i < format->num_planes; i++) {
Rob Clark9a0774e2012-01-16 12:51:17 -0600384 struct plane *plane = &omap_fb->planes[i];
Laurent Pinchartc9028b32016-06-07 00:45:35 +0300385 unsigned int vsub = i == 0 ? 1 : format->vsub;
386 unsigned int size;
Rob Clarkcd5351f2011-11-12 12:09:40 -0600387
Laurent Pinchartc9028b32016-06-07 00:45:35 +0300388 size = pitch * mode_cmd->height / vsub;
Rob Clarkcd5351f2011-11-12 12:09:40 -0600389
Laurent Pinchart6941e3d2016-03-26 20:01:13 +0200390 if (size > omap_gem_mmap_size(bos[i]) - mode_cmd->offsets[i]) {
Laurent Pincharta078a3d2016-03-26 20:02:49 +0200391 dev_dbg(dev->dev,
Tomi Valkeinen2150c192017-02-21 09:57:12 +0200392 "provided buffer object is too small! %zu < %d\n",
Laurent Pinchart6941e3d2016-03-26 20:01:13 +0200393 bos[i]->size - mode_cmd->offsets[i], size);
Tomi Valkeinenbe4f2352016-01-08 15:51:02 +0200394 ret = -EINVAL;
395 goto fail;
396 }
397
Daniel Stone3e442552018-03-30 15:11:20 +0100398 fb->obj[i] = bos[i];
Laurent Pinchart16869082017-04-21 00:33:51 +0300399 plane->dma_addr = 0;
Rob Clarkcd5351f2011-11-12 12:09:40 -0600400 }
401
Ville Syrjäläa3f913c2016-12-14 22:48:59 +0200402 drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
Rob Clarkcd5351f2011-11-12 12:09:40 -0600403
Daniel Vetterc7d73f62012-12-13 23:38:38 +0100404 ret = drm_framebuffer_init(dev, fb, &omap_framebuffer_funcs);
405 if (ret) {
406 dev_err(dev->dev, "framebuffer init failed: %d\n", ret);
407 goto fail;
408 }
409
410 DBG("create: FB ID: %d (%p)", fb->base.id, fb);
411
Rob Clarkcd5351f2011-11-12 12:09:40 -0600412 return fb;
413
414fail:
Tomi Valkeinen925e4942014-09-25 19:24:27 +0000415 kfree(omap_fb);
YAMANE Toshiakiddcd49e2012-11-14 19:32:17 +0900416
Rob Clarkae43d7c2012-01-16 12:51:15 -0600417 return ERR_PTR(ret);
Rob Clarkcd5351f2011-11-12 12:09:40 -0600418}