1caab277bSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
28bb0daffSRob Clark /*
31b409fdaSAlexander A. Klimov * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
48bb0daffSRob Clark * Author: Rob Clark <rob@ti.com>
58bb0daffSRob Clark */
68bb0daffSRob Clark
781f6156cSSam Ravnborg #include <linux/dma-mapping.h>
82d802453SArnd Bergmann
9*90bb087fSVille Syrjälä #include <drm/drm_blend.h>
10fcd70cd3SDaniel Vetter #include <drm/drm_modeset_helper.h>
1181f6156cSSam Ravnborg #include <drm/drm_fourcc.h>
12720cf96dSVille Syrjälä #include <drm/drm_framebuffer.h>
133e442552SDaniel Stone #include <drm/drm_gem_framebuffer_helper.h>
148bb0daffSRob Clark
152d278f54SLaurent Pinchart #include "omap_dmm_tiler.h"
162d278f54SLaurent Pinchart #include "omap_drv.h"
178bb0daffSRob Clark
188bb0daffSRob Clark /*
198bb0daffSRob Clark * framebuffer funcs
208bb0daffSRob Clark */
218bb0daffSRob Clark
22c2e52e32STomi Valkeinen static const u32 formats[] = {
238bb0daffSRob Clark /* 16bpp [A]RGB: */
24c2e52e32STomi Valkeinen DRM_FORMAT_RGB565, /* RGB16-565 */
25c2e52e32STomi Valkeinen DRM_FORMAT_RGBX4444, /* RGB12x-4444 */
26c2e52e32STomi Valkeinen DRM_FORMAT_XRGB4444, /* xRGB12-4444 */
27c2e52e32STomi Valkeinen DRM_FORMAT_RGBA4444, /* RGBA12-4444 */
28c2e52e32STomi Valkeinen DRM_FORMAT_ARGB4444, /* ARGB16-4444 */
29c2e52e32STomi Valkeinen DRM_FORMAT_XRGB1555, /* xRGB15-1555 */
30c2e52e32STomi Valkeinen DRM_FORMAT_ARGB1555, /* ARGB16-1555 */
318bb0daffSRob Clark /* 24bpp RGB: */
32c2e52e32STomi Valkeinen DRM_FORMAT_RGB888, /* RGB24-888 */
338bb0daffSRob Clark /* 32bpp [A]RGB: */
34c2e52e32STomi Valkeinen DRM_FORMAT_RGBX8888, /* RGBx24-8888 */
35c2e52e32STomi Valkeinen DRM_FORMAT_XRGB8888, /* xRGB24-8888 */
36c2e52e32STomi Valkeinen DRM_FORMAT_RGBA8888, /* RGBA32-8888 */
37c2e52e32STomi Valkeinen DRM_FORMAT_ARGB8888, /* ARGB32-8888 */
388bb0daffSRob Clark /* YUV: */
39c2e52e32STomi Valkeinen DRM_FORMAT_NV12,
40c2e52e32STomi Valkeinen DRM_FORMAT_YUYV,
41c2e52e32STomi Valkeinen DRM_FORMAT_UYVY,
428bb0daffSRob Clark };
438bb0daffSRob Clark
448bb0daffSRob Clark /* per-plane info for the fb: */
458bb0daffSRob Clark struct plane {
4616869083SLaurent Pinchart dma_addr_t dma_addr;
478bb0daffSRob Clark };
488bb0daffSRob Clark
498bb0daffSRob Clark #define to_omap_framebuffer(x) container_of(x, struct omap_framebuffer, base)
508bb0daffSRob Clark
518bb0daffSRob Clark struct omap_framebuffer {
528bb0daffSRob Clark struct drm_framebuffer base;
53f36eb5a8STomi Valkeinen int pin_count;
54c9028b39SLaurent Pinchart const struct drm_format_info *format;
554d20dfc0SLaurent Pinchart struct plane planes[2];
5616869083SLaurent Pinchart /* lock for pinning (pin_count and planes.dma_addr) */
57f524ab7cSTomi Valkeinen struct mutex lock;
588bb0daffSRob Clark };
598bb0daffSRob Clark
omap_framebuffer_dirty(struct drm_framebuffer * fb,struct drm_file * file_priv,unsigned flags,unsigned color,struct drm_clip_rect * clips,unsigned num_clips)601bb418bfSSebastian Reichel static int omap_framebuffer_dirty(struct drm_framebuffer *fb,
611bb418bfSSebastian Reichel struct drm_file *file_priv,
621bb418bfSSebastian Reichel unsigned flags, unsigned color,
631bb418bfSSebastian Reichel struct drm_clip_rect *clips,
641bb418bfSSebastian Reichel unsigned num_clips)
651bb418bfSSebastian Reichel {
661bb418bfSSebastian Reichel struct drm_crtc *crtc;
671bb418bfSSebastian Reichel
68ff6c898fSSean Paul drm_modeset_lock_all(fb->dev);
691bb418bfSSebastian Reichel
701bb418bfSSebastian Reichel drm_for_each_crtc(crtc, fb->dev)
711bb418bfSSebastian Reichel omap_crtc_flush(crtc);
721bb418bfSSebastian Reichel
73ff6c898fSSean Paul drm_modeset_unlock_all(fb->dev);
741bb418bfSSebastian Reichel
75ff6c898fSSean Paul return 0;
761bb418bfSSebastian Reichel }
771bb418bfSSebastian Reichel
788bb0daffSRob Clark static const struct drm_framebuffer_funcs omap_framebuffer_funcs = {
793e442552SDaniel Stone .create_handle = drm_gem_fb_create_handle,
801bb418bfSSebastian Reichel .dirty = omap_framebuffer_dirty,
813e442552SDaniel Stone .destroy = drm_gem_fb_destroy,
828bb0daffSRob Clark };
838bb0daffSRob Clark
get_linear_addr(struct drm_framebuffer * fb,const struct drm_format_info * format,int n,int x,int y)842ecceeb5SDaniel Stone static u32 get_linear_addr(struct drm_framebuffer *fb,
85c9028b39SLaurent Pinchart const struct drm_format_info *format, int n, int x, int y)
868bb0daffSRob Clark {
872ecceeb5SDaniel Stone struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
882ecceeb5SDaniel Stone struct plane *plane = &omap_fb->planes[n];
89dfe9cfccSLaurent Pinchart u32 offset;
908bb0daffSRob Clark
912ecceeb5SDaniel Stone offset = fb->offsets[n]
92c9028b39SLaurent Pinchart + (x * format->cpp[n] / (n == 0 ? 1 : format->hsub))
932ecceeb5SDaniel Stone + (y * fb->pitches[n] / (n == 0 ? 1 : format->vsub));
948bb0daffSRob Clark
9516869083SLaurent Pinchart return plane->dma_addr + offset;
968bb0daffSRob Clark }
978bb0daffSRob Clark
omap_framebuffer_supports_rotation(struct drm_framebuffer * fb)98bfeece55STomi Valkeinen bool omap_framebuffer_supports_rotation(struct drm_framebuffer *fb)
99bfeece55STomi Valkeinen {
10048b34ac0STomi Valkeinen return omap_gem_flags(fb->obj[0]) & OMAP_BO_TILED_MASK;
101bfeece55STomi Valkeinen }
102bfeece55STomi Valkeinen
1038958aeb9STomi Valkeinen /* Note: DRM rotates counter-clockwise, TILER & DSS rotates clockwise */
drm_rotation_to_tiler(unsigned int drm_rot)104dfe9cfccSLaurent Pinchart static u32 drm_rotation_to_tiler(unsigned int drm_rot)
1058958aeb9STomi Valkeinen {
106dfe9cfccSLaurent Pinchart u32 orient;
1078958aeb9STomi Valkeinen
1088958aeb9STomi Valkeinen switch (drm_rot & DRM_MODE_ROTATE_MASK) {
1098958aeb9STomi Valkeinen default:
1108958aeb9STomi Valkeinen case DRM_MODE_ROTATE_0:
1118958aeb9STomi Valkeinen orient = 0;
1128958aeb9STomi Valkeinen break;
1138958aeb9STomi Valkeinen case DRM_MODE_ROTATE_90:
1148958aeb9STomi Valkeinen orient = MASK_XY_FLIP | MASK_X_INVERT;
1158958aeb9STomi Valkeinen break;
1168958aeb9STomi Valkeinen case DRM_MODE_ROTATE_180:
1178958aeb9STomi Valkeinen orient = MASK_X_INVERT | MASK_Y_INVERT;
1188958aeb9STomi Valkeinen break;
1198958aeb9STomi Valkeinen case DRM_MODE_ROTATE_270:
1208958aeb9STomi Valkeinen orient = MASK_XY_FLIP | MASK_Y_INVERT;
1218958aeb9STomi Valkeinen break;
1228958aeb9STomi Valkeinen }
1238958aeb9STomi Valkeinen
1248958aeb9STomi Valkeinen if (drm_rot & DRM_MODE_REFLECT_X)
1258958aeb9STomi Valkeinen orient ^= MASK_X_INVERT;
1268958aeb9STomi Valkeinen
1278958aeb9STomi Valkeinen if (drm_rot & DRM_MODE_REFLECT_Y)
1288958aeb9STomi Valkeinen orient ^= MASK_Y_INVERT;
1298958aeb9STomi Valkeinen
1308958aeb9STomi Valkeinen return orient;
1318958aeb9STomi Valkeinen }
1328958aeb9STomi Valkeinen
1338bb0daffSRob Clark /* update ovl info for scanout, handles cases of multi-planar fb's, etc.
1348bb0daffSRob Clark */
omap_framebuffer_update_scanout(struct drm_framebuffer * fb,struct drm_plane_state * state,struct omap_overlay_info * info,struct omap_overlay_info * r_info)1358bb0daffSRob Clark void omap_framebuffer_update_scanout(struct drm_framebuffer *fb,
136e02b5cc9SBenoit Parrot struct drm_plane_state *state,
137e02b5cc9SBenoit Parrot struct omap_overlay_info *info,
138e02b5cc9SBenoit Parrot struct omap_overlay_info *r_info)
1398bb0daffSRob Clark {
1408bb0daffSRob Clark struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
141c9028b39SLaurent Pinchart const struct drm_format_info *format = omap_fb->format;
142dfe9cfccSLaurent Pinchart u32 x, y, orient = 0;
1438bb0daffSRob Clark
14441aff42aSTomi Valkeinen info->fourcc = fb->format->format;
1458bb0daffSRob Clark
146218ed535STomi Valkeinen info->pos_x = state->crtc_x;
147218ed535STomi Valkeinen info->pos_y = state->crtc_y;
148218ed535STomi Valkeinen info->out_width = state->crtc_w;
149218ed535STomi Valkeinen info->out_height = state->crtc_h;
150218ed535STomi Valkeinen info->width = state->src_w >> 16;
151218ed535STomi Valkeinen info->height = state->src_h >> 16;
1528bb0daffSRob Clark
153218ed535STomi Valkeinen /* DSS driver wants the w & h in rotated orientation */
154218ed535STomi Valkeinen if (drm_rotation_90_or_270(state->rotation))
155218ed535STomi Valkeinen swap(info->width, info->height);
156218ed535STomi Valkeinen
157218ed535STomi Valkeinen x = state->src_x >> 16;
158218ed535STomi Valkeinen y = state->src_y >> 16;
1598bb0daffSRob Clark
16048b34ac0STomi Valkeinen if (omap_gem_flags(fb->obj[0]) & OMAP_BO_TILED_MASK) {
161dfe9cfccSLaurent Pinchart u32 w = state->src_w >> 16;
162dfe9cfccSLaurent Pinchart u32 h = state->src_h >> 16;
1638bb0daffSRob Clark
164218ed535STomi Valkeinen orient = drm_rotation_to_tiler(state->rotation);
1658bb0daffSRob Clark
166c4df6e42STomi Valkeinen /*
167c4df6e42STomi Valkeinen * omap_gem_rotated_paddr() wants the x & y in tiler units.
168c4df6e42STomi Valkeinen * Usually tiler unit size is the same as the pixel size, except
169c4df6e42STomi Valkeinen * for YUV422 formats, for which the tiler unit size is 32 bits
170c4df6e42STomi Valkeinen * and pixel size is 16 bits.
171c4df6e42STomi Valkeinen */
172c4df6e42STomi Valkeinen if (fb->format->format == DRM_FORMAT_UYVY ||
173c4df6e42STomi Valkeinen fb->format->format == DRM_FORMAT_YUYV) {
174c4df6e42STomi Valkeinen x /= 2;
175c4df6e42STomi Valkeinen w /= 2;
176c4df6e42STomi Valkeinen }
177c4df6e42STomi Valkeinen
178218ed535STomi Valkeinen /* adjust x,y offset for invert: */
1798bb0daffSRob Clark if (orient & MASK_Y_INVERT)
1808bb0daffSRob Clark y += h - 1;
1818bb0daffSRob Clark if (orient & MASK_X_INVERT)
1828bb0daffSRob Clark x += w - 1;
1838bb0daffSRob Clark
184c4df6e42STomi Valkeinen /* Note: x and y are in TILER units, not pixels */
1853e442552SDaniel Stone omap_gem_rotated_dma_addr(fb->obj[0], orient, x, y,
18616869083SLaurent Pinchart &info->paddr);
1878bb0daffSRob Clark info->rotation_type = OMAP_DSS_ROT_TILER;
18816f9ede5STomi Valkeinen info->rotation = state->rotation ?: DRM_MODE_ROTATE_0;
189c4df6e42STomi Valkeinen /* Note: stride in TILER units, not pixels */
1903e442552SDaniel Stone info->screen_width = omap_gem_tiled_stride(fb->obj[0], orient);
1918bb0daffSRob Clark } else {
192218ed535STomi Valkeinen switch (state->rotation & DRM_MODE_ROTATE_MASK) {
1935ac96345STomi Valkeinen case 0:
194c2c446adSRobert Foss case DRM_MODE_ROTATE_0:
1955ac96345STomi Valkeinen /* OK */
1965ac96345STomi Valkeinen break;
1975ac96345STomi Valkeinen
1985ac96345STomi Valkeinen default:
1995ac96345STomi Valkeinen dev_warn(fb->dev->dev,
2005ac96345STomi Valkeinen "rotation '%d' ignored for non-tiled fb\n",
201218ed535STomi Valkeinen state->rotation);
2025ac96345STomi Valkeinen break;
2035ac96345STomi Valkeinen }
2045ac96345STomi Valkeinen
2052ecceeb5SDaniel Stone info->paddr = get_linear_addr(fb, format, 0, x, y);
206517a8a95STomi Valkeinen info->rotation_type = OMAP_DSS_ROT_NONE;
20716f9ede5STomi Valkeinen info->rotation = DRM_MODE_ROTATE_0;
2082ecceeb5SDaniel Stone info->screen_width = fb->pitches[0];
2098bb0daffSRob Clark }
2108bb0daffSRob Clark
2118bb0daffSRob Clark /* convert to pixels: */
212c9028b39SLaurent Pinchart info->screen_width /= format->cpp[0];
2138bb0daffSRob Clark
214c2e52e32STomi Valkeinen if (fb->format->format == DRM_FORMAT_NV12) {
2158bb0daffSRob Clark if (info->rotation_type == OMAP_DSS_ROT_TILER) {
21648b34ac0STomi Valkeinen WARN_ON(!(omap_gem_flags(fb->obj[1]) & OMAP_BO_TILED_MASK));
2173e442552SDaniel Stone omap_gem_rotated_dma_addr(fb->obj[1], orient, x/2, y/2,
21816869083SLaurent Pinchart &info->p_uv_addr);
2198bb0daffSRob Clark } else {
2202ecceeb5SDaniel Stone info->p_uv_addr = get_linear_addr(fb, format, 1, x, y);
2218bb0daffSRob Clark }
2228bb0daffSRob Clark } else {
2238bb0daffSRob Clark info->p_uv_addr = 0;
2248bb0daffSRob Clark }
225e02b5cc9SBenoit Parrot
226e02b5cc9SBenoit Parrot if (r_info) {
227e02b5cc9SBenoit Parrot info->width /= 2;
228e02b5cc9SBenoit Parrot info->out_width /= 2;
229e02b5cc9SBenoit Parrot
230e02b5cc9SBenoit Parrot *r_info = *info;
231e02b5cc9SBenoit Parrot
232e02b5cc9SBenoit Parrot if (fb->format->is_yuv) {
233e02b5cc9SBenoit Parrot if (info->width & 1) {
234e02b5cc9SBenoit Parrot info->width++;
235e02b5cc9SBenoit Parrot r_info->width--;
236e02b5cc9SBenoit Parrot }
237e02b5cc9SBenoit Parrot
238e02b5cc9SBenoit Parrot if (info->out_width & 1) {
239e02b5cc9SBenoit Parrot info->out_width++;
240e02b5cc9SBenoit Parrot r_info->out_width--;
241e02b5cc9SBenoit Parrot }
242e02b5cc9SBenoit Parrot }
243e02b5cc9SBenoit Parrot
244e02b5cc9SBenoit Parrot r_info->pos_x = info->pos_x + info->out_width;
245e02b5cc9SBenoit Parrot
246e02b5cc9SBenoit Parrot r_info->paddr = get_linear_addr(fb, format, 0,
247e02b5cc9SBenoit Parrot x + info->width, y);
248e02b5cc9SBenoit Parrot if (fb->format->format == DRM_FORMAT_NV12) {
249e02b5cc9SBenoit Parrot r_info->p_uv_addr =
250e02b5cc9SBenoit Parrot get_linear_addr(fb, format, 1,
251e02b5cc9SBenoit Parrot x + info->width, y);
252e02b5cc9SBenoit Parrot }
253e02b5cc9SBenoit Parrot }
2548bb0daffSRob Clark }
2558bb0daffSRob Clark
2565833bd2fSRob Clark /* pin, prepare for scanout: */
omap_framebuffer_pin(struct drm_framebuffer * fb)2575833bd2fSRob Clark int omap_framebuffer_pin(struct drm_framebuffer *fb)
2588bb0daffSRob Clark {
2595833bd2fSRob Clark struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
260bcb0b461SVille Syrjälä int ret, i, n = fb->format->num_planes;
2618bb0daffSRob Clark
262f524ab7cSTomi Valkeinen mutex_lock(&omap_fb->lock);
263f524ab7cSTomi Valkeinen
264f36eb5a8STomi Valkeinen if (omap_fb->pin_count > 0) {
265f36eb5a8STomi Valkeinen omap_fb->pin_count++;
266f524ab7cSTomi Valkeinen mutex_unlock(&omap_fb->lock);
267f36eb5a8STomi Valkeinen return 0;
268f36eb5a8STomi Valkeinen }
269f36eb5a8STomi Valkeinen
2705833bd2fSRob Clark for (i = 0; i < n; i++) {
2715833bd2fSRob Clark struct plane *plane = &omap_fb->planes[i];
2723e442552SDaniel Stone ret = omap_gem_pin(fb->obj[i], &plane->dma_addr);
2735833bd2fSRob Clark if (ret)
2745833bd2fSRob Clark goto fail;
2753e442552SDaniel Stone omap_gem_dma_sync_buffer(fb->obj[i], DMA_TO_DEVICE);
2768bb0daffSRob Clark }
2778bb0daffSRob Clark
278f36eb5a8STomi Valkeinen omap_fb->pin_count++;
279f36eb5a8STomi Valkeinen
280f524ab7cSTomi Valkeinen mutex_unlock(&omap_fb->lock);
281f524ab7cSTomi Valkeinen
2825833bd2fSRob Clark return 0;
2835833bd2fSRob Clark
2845833bd2fSRob Clark fail:
2855833bd2fSRob Clark for (i--; i >= 0; i--) {
2865833bd2fSRob Clark struct plane *plane = &omap_fb->planes[i];
2873e442552SDaniel Stone omap_gem_unpin(fb->obj[i]);
28816869083SLaurent Pinchart plane->dma_addr = 0;
2898bb0daffSRob Clark }
2908bb0daffSRob Clark
291f524ab7cSTomi Valkeinen mutex_unlock(&omap_fb->lock);
292f524ab7cSTomi Valkeinen
2938bb0daffSRob Clark return ret;
2948bb0daffSRob Clark }
2958bb0daffSRob Clark
2965833bd2fSRob Clark /* unpin, no longer being scanned out: */
omap_framebuffer_unpin(struct drm_framebuffer * fb)2979c368506STomi Valkeinen void omap_framebuffer_unpin(struct drm_framebuffer *fb)
2985833bd2fSRob Clark {
2995833bd2fSRob Clark struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
300bcb0b461SVille Syrjälä int i, n = fb->format->num_planes;
3015833bd2fSRob Clark
302f524ab7cSTomi Valkeinen mutex_lock(&omap_fb->lock);
303f524ab7cSTomi Valkeinen
304f36eb5a8STomi Valkeinen omap_fb->pin_count--;
305f36eb5a8STomi Valkeinen
306f524ab7cSTomi Valkeinen if (omap_fb->pin_count > 0) {
307f524ab7cSTomi Valkeinen mutex_unlock(&omap_fb->lock);
3089c368506STomi Valkeinen return;
309f524ab7cSTomi Valkeinen }
310f36eb5a8STomi Valkeinen
3115833bd2fSRob Clark for (i = 0; i < n; i++) {
3125833bd2fSRob Clark struct plane *plane = &omap_fb->planes[i];
3133e442552SDaniel Stone omap_gem_unpin(fb->obj[i]);
31416869083SLaurent Pinchart plane->dma_addr = 0;
3155833bd2fSRob Clark }
3165833bd2fSRob Clark
317f524ab7cSTomi Valkeinen mutex_unlock(&omap_fb->lock);
3185833bd2fSRob Clark }
3195833bd2fSRob Clark
3208bb0daffSRob Clark #ifdef CONFIG_DEBUG_FS
omap_framebuffer_describe(struct drm_framebuffer * fb,struct seq_file * m)3218bb0daffSRob Clark void omap_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m)
3228bb0daffSRob Clark {
323bcb0b461SVille Syrjälä int i, n = fb->format->num_planes;
3248bb0daffSRob Clark
3258bb0daffSRob Clark seq_printf(m, "fb: %dx%d@%4.4s\n", fb->width, fb->height,
326438b74a5SVille Syrjälä (char *)&fb->format->format);
3278bb0daffSRob Clark
3288bb0daffSRob Clark for (i = 0; i < n; i++) {
3298bb0daffSRob Clark seq_printf(m, " %d: offset=%d pitch=%d, obj: ",
3302ecceeb5SDaniel Stone i, fb->offsets[n], fb->pitches[i]);
3313e442552SDaniel Stone omap_gem_describe(fb->obj[i], m);
3328bb0daffSRob Clark }
3338bb0daffSRob Clark }
3348bb0daffSRob Clark #endif
3358bb0daffSRob Clark
omap_framebuffer_create(struct drm_device * dev,struct drm_file * file,const struct drm_mode_fb_cmd2 * mode_cmd)3368bb0daffSRob Clark struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
3371eb83451SVille Syrjälä struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd)
3388bb0daffSRob Clark {
33905c452c1SMaxime Ripard const struct drm_format_info *info = drm_get_format_info(dev,
34005c452c1SMaxime Ripard mode_cmd);
34105c452c1SMaxime Ripard unsigned int num_planes = info->num_planes;
3428bb0daffSRob Clark struct drm_gem_object *bos[4];
3438bb0daffSRob Clark struct drm_framebuffer *fb;
344a39c94e8SLaurent Pinchart int i;
3458bb0daffSRob Clark
346a39c94e8SLaurent Pinchart for (i = 0; i < num_planes; i++) {
347a39c94e8SLaurent Pinchart bos[i] = drm_gem_object_lookup(file, mode_cmd->handles[i]);
348a39c94e8SLaurent Pinchart if (!bos[i]) {
349a39c94e8SLaurent Pinchart fb = ERR_PTR(-ENOENT);
350a39c94e8SLaurent Pinchart goto error;
351a39c94e8SLaurent Pinchart }
352a39c94e8SLaurent Pinchart }
3538bb0daffSRob Clark
3548bb0daffSRob Clark fb = omap_framebuffer_init(dev, mode_cmd, bos);
355a39c94e8SLaurent Pinchart if (IS_ERR(fb))
356a39c94e8SLaurent Pinchart goto error;
357a39c94e8SLaurent Pinchart
3588bb0daffSRob Clark return fb;
359a39c94e8SLaurent Pinchart
360a39c94e8SLaurent Pinchart error:
36195552191STomi Valkeinen while (--i >= 0)
362d742cdd6SEmil Velikov drm_gem_object_put(bos[i]);
363a39c94e8SLaurent Pinchart
3648bb0daffSRob Clark return fb;
3658bb0daffSRob Clark }
3668bb0daffSRob Clark
omap_framebuffer_init(struct drm_device * dev,const struct drm_mode_fb_cmd2 * mode_cmd,struct drm_gem_object ** bos)3678bb0daffSRob Clark struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
3681eb83451SVille Syrjälä const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos)
3698bb0daffSRob Clark {
370c9028b39SLaurent Pinchart const struct drm_format_info *format = NULL;
371925e4940STomi Valkeinen struct omap_framebuffer *omap_fb = NULL;
3728bb0daffSRob Clark struct drm_framebuffer *fb = NULL;
3736941e3d1SLaurent Pinchart unsigned int pitch = mode_cmd->pitches[0];
374c9028b39SLaurent Pinchart int ret, i;
3758bb0daffSRob Clark
3768bb0daffSRob Clark DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%4.4s)",
3778bb0daffSRob Clark dev, mode_cmd, mode_cmd->width, mode_cmd->height,
3788bb0daffSRob Clark (char *)&mode_cmd->pixel_format);
3798bb0daffSRob Clark
38092f08076SMaxime Ripard format = drm_get_format_info(dev, mode_cmd);
381c9028b39SLaurent Pinchart
3828bb0daffSRob Clark for (i = 0; i < ARRAY_SIZE(formats); i++) {
383c2e52e32STomi Valkeinen if (formats[i] == mode_cmd->pixel_format)
3848bb0daffSRob Clark break;
3858bb0daffSRob Clark }
3868bb0daffSRob Clark
387c2e52e32STomi Valkeinen if (!format || i == ARRAY_SIZE(formats)) {
388a078a3ddSLaurent Pinchart dev_dbg(dev->dev, "unsupported pixel format: %4.4s\n",
3898bb0daffSRob Clark (char *)&mode_cmd->pixel_format);
3908bb0daffSRob Clark ret = -EINVAL;
3918bb0daffSRob Clark goto fail;
3928bb0daffSRob Clark }
3938bb0daffSRob Clark
3948bb0daffSRob Clark omap_fb = kzalloc(sizeof(*omap_fb), GFP_KERNEL);
3958bb0daffSRob Clark if (!omap_fb) {
3968bb0daffSRob Clark ret = -ENOMEM;
3978bb0daffSRob Clark goto fail;
3988bb0daffSRob Clark }
3998bb0daffSRob Clark
4008bb0daffSRob Clark fb = &omap_fb->base;
4018bb0daffSRob Clark omap_fb->format = format;
402f524ab7cSTomi Valkeinen mutex_init(&omap_fb->lock);
4038bb0daffSRob Clark
4046941e3d1SLaurent Pinchart /*
4056941e3d1SLaurent Pinchart * The code below assumes that no format use more than two planes, and
4066941e3d1SLaurent Pinchart * that the two planes of multiplane formats need the same number of
4076941e3d1SLaurent Pinchart * bytes per pixel.
4086941e3d1SLaurent Pinchart */
4096941e3d1SLaurent Pinchart if (format->num_planes == 2 && pitch != mode_cmd->pitches[1]) {
410a078a3ddSLaurent Pinchart dev_dbg(dev->dev, "pitches differ between planes 0 and 1\n");
4116941e3d1SLaurent Pinchart ret = -EINVAL;
4126941e3d1SLaurent Pinchart goto fail;
4136941e3d1SLaurent Pinchart }
4146941e3d1SLaurent Pinchart
4156941e3d1SLaurent Pinchart if (pitch % format->cpp[0]) {
416a078a3ddSLaurent Pinchart dev_dbg(dev->dev,
4176941e3d1SLaurent Pinchart "buffer pitch (%u bytes) is not a multiple of pixel size (%u bytes)\n",
4186941e3d1SLaurent Pinchart pitch, format->cpp[0]);
4196941e3d1SLaurent Pinchart ret = -EINVAL;
4206941e3d1SLaurent Pinchart goto fail;
4216941e3d1SLaurent Pinchart }
4226941e3d1SLaurent Pinchart
423c9028b39SLaurent Pinchart for (i = 0; i < format->num_planes; i++) {
4248bb0daffSRob Clark struct plane *plane = &omap_fb->planes[i];
425c9028b39SLaurent Pinchart unsigned int vsub = i == 0 ? 1 : format->vsub;
426c9028b39SLaurent Pinchart unsigned int size;
4278bb0daffSRob Clark
428c9028b39SLaurent Pinchart size = pitch * mode_cmd->height / vsub;
4298bb0daffSRob Clark
4306941e3d1SLaurent Pinchart if (size > omap_gem_mmap_size(bos[i]) - mode_cmd->offsets[i]) {
431a078a3ddSLaurent Pinchart dev_dbg(dev->dev,
4322150c19bSTomi Valkeinen "provided buffer object is too small! %zu < %d\n",
4338bb0daffSRob Clark bos[i]->size - mode_cmd->offsets[i], size);
4348bb0daffSRob Clark ret = -EINVAL;
4358bb0daffSRob Clark goto fail;
4368bb0daffSRob Clark }
4378bb0daffSRob Clark
4383e442552SDaniel Stone fb->obj[i] = bos[i];
43916869083SLaurent Pinchart plane->dma_addr = 0;
4408bb0daffSRob Clark }
4418bb0daffSRob Clark
442a3f913caSVille Syrjälä drm_helper_mode_fill_fb_struct(dev, fb, mode_cmd);
4438bb0daffSRob Clark
4448bb0daffSRob Clark ret = drm_framebuffer_init(dev, fb, &omap_framebuffer_funcs);
4458bb0daffSRob Clark if (ret) {
4468bb0daffSRob Clark dev_err(dev->dev, "framebuffer init failed: %d\n", ret);
4478bb0daffSRob Clark goto fail;
4488bb0daffSRob Clark }
4498bb0daffSRob Clark
4508bb0daffSRob Clark DBG("create: FB ID: %d (%p)", fb->base.id, fb);
4518bb0daffSRob Clark
4528bb0daffSRob Clark return fb;
4538bb0daffSRob Clark
4548bb0daffSRob Clark fail:
455925e4940STomi Valkeinen kfree(omap_fb);
4568bb0daffSRob Clark
4578bb0daffSRob Clark return ERR_PTR(ret);
4588bb0daffSRob Clark }
459