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1/*
2 * rcar_du_vsp.h -- R-Car Display Unit VSP-Based Compositor
3 *
4 * Copyright (C) 2015 Renesas Electronics Corporation
5 *
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <drm/drmP.h>
15#include <drm/drm_atomic_helper.h>
16#include <drm/drm_crtc.h>
17#include <drm/drm_crtc_helper.h>
18#include <drm/drm_fb_cma_helper.h>
19#include <drm/drm_gem_cma_helper.h>
20#include <drm/drm_plane_helper.h>
21
22#include <linux/of_platform.h>
23#include <linux/videodev2.h>
24
25#include <media/vsp1.h>
26
27#include "rcar_du_drv.h"
28#include "rcar_du_kms.h"
29#include "rcar_du_vsp.h"
30
31void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
32{
33 const struct drm_display_mode *mode = &crtc->crtc.state->adjusted_mode;
34 struct rcar_du_device *rcdu = crtc->group->dev;
35 struct rcar_du_plane_state state = {
36 .state = {
37 .crtc = &crtc->crtc,
38 .crtc_x = 0,
39 .crtc_y = 0,
40 .crtc_w = mode->hdisplay,
41 .crtc_h = mode->vdisplay,
42 .src_x = 0,
43 .src_y = 0,
44 .src_w = mode->hdisplay << 16,
45 .src_h = mode->vdisplay << 16,
46 },
47 .format = rcar_du_format_info(DRM_FORMAT_ARGB8888),
48 .source = RCAR_DU_PLANE_VSPD1,
49 .alpha = 255,
50 .colorkey = 0,
51 .zpos = 0,
52 };
53
54 if (rcdu->info->gen >= 3)
55 state.hwindex = (crtc->index % 2) ? 2 : 0;
56 else
57 state.hwindex = crtc->index % 2;
58
59 __rcar_du_plane_setup(crtc->group, &state);
60
61 /* Ensure that the plane source configuration takes effect by requesting
62 * a restart of the group. See rcar_du_plane_atomic_update() for a more
63 * detailed explanation.
64 *
65 * TODO: Check whether this is still needed on Gen3.
66 */
67 crtc->group->need_restart = true;
68
69 vsp1_du_setup_lif(crtc->vsp->vsp, mode->hdisplay, mode->vdisplay);
70}
71
72void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
73{
74 vsp1_du_setup_lif(crtc->vsp->vsp, 0, 0);
75}
76
77void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc)
78{
79 vsp1_du_atomic_begin(crtc->vsp->vsp);
80}
81
82void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc)
83{
84 vsp1_du_atomic_flush(crtc->vsp->vsp);
85}
86
87/* Keep the two tables in sync. */
88static const u32 formats_kms[] = {
89 DRM_FORMAT_RGB332,
90 DRM_FORMAT_ARGB4444,
91 DRM_FORMAT_XRGB4444,
92 DRM_FORMAT_ARGB1555,
93 DRM_FORMAT_XRGB1555,
94 DRM_FORMAT_RGB565,
95 DRM_FORMAT_BGR888,
96 DRM_FORMAT_RGB888,
97 DRM_FORMAT_BGRA8888,
98 DRM_FORMAT_BGRX8888,
99 DRM_FORMAT_ARGB8888,
100 DRM_FORMAT_XRGB8888,
101 DRM_FORMAT_UYVY,
102 DRM_FORMAT_VYUY,
103 DRM_FORMAT_YUYV,
104 DRM_FORMAT_YVYU,
105 DRM_FORMAT_NV12,
106 DRM_FORMAT_NV21,
107 DRM_FORMAT_NV16,
108 DRM_FORMAT_NV61,
109 DRM_FORMAT_YUV420,
110 DRM_FORMAT_YVU420,
111 DRM_FORMAT_YUV422,
112 DRM_FORMAT_YVU422,
113 DRM_FORMAT_YUV444,
114 DRM_FORMAT_YVU444,
115};
116
117static const u32 formats_v4l2[] = {
118 V4L2_PIX_FMT_RGB332,
119 V4L2_PIX_FMT_ARGB444,
120 V4L2_PIX_FMT_XRGB444,
121 V4L2_PIX_FMT_ARGB555,
122 V4L2_PIX_FMT_XRGB555,
123 V4L2_PIX_FMT_RGB565,
124 V4L2_PIX_FMT_RGB24,
125 V4L2_PIX_FMT_BGR24,
126 V4L2_PIX_FMT_ARGB32,
127 V4L2_PIX_FMT_XRGB32,
128 V4L2_PIX_FMT_ABGR32,
129 V4L2_PIX_FMT_XBGR32,
130 V4L2_PIX_FMT_UYVY,
131 V4L2_PIX_FMT_VYUY,
132 V4L2_PIX_FMT_YUYV,
133 V4L2_PIX_FMT_YVYU,
134 V4L2_PIX_FMT_NV12M,
135 V4L2_PIX_FMT_NV21M,
136 V4L2_PIX_FMT_NV16M,
137 V4L2_PIX_FMT_NV61M,
138 V4L2_PIX_FMT_YUV420M,
139 V4L2_PIX_FMT_YVU420M,
140 V4L2_PIX_FMT_YUV422M,
141 V4L2_PIX_FMT_YVU422M,
142 V4L2_PIX_FMT_YUV444M,
143 V4L2_PIX_FMT_YVU444M,
144};
145
146static void rcar_du_vsp_plane_setup(struct rcar_du_vsp_plane *plane)
147{
148 struct rcar_du_vsp_plane_state *state =
149 to_rcar_vsp_plane_state(plane->plane.state);
150 struct drm_framebuffer *fb = plane->plane.state->fb;
151 struct v4l2_rect src;
152 struct v4l2_rect dst;
153 dma_addr_t paddr[2] = { 0, };
154 u32 pixelformat = 0;
155 unsigned int i;
156
157 src.left = state->state.src_x >> 16;
158 src.top = state->state.src_y >> 16;
159 src.width = state->state.src_w >> 16;
160 src.height = state->state.src_h >> 16;
161
162 dst.left = state->state.crtc_x;
163 dst.top = state->state.crtc_y;
164 dst.width = state->state.crtc_w;
165 dst.height = state->state.crtc_h;
166
167 for (i = 0; i < state->format->planes; ++i) {
168 struct drm_gem_cma_object *gem;
169
170 gem = drm_fb_cma_get_gem_obj(fb, i);
171 paddr[i] = gem->paddr + fb->offsets[i];
172 }
173
174 for (i = 0; i < ARRAY_SIZE(formats_kms); ++i) {
175 if (formats_kms[i] == state->format->fourcc) {
176 pixelformat = formats_v4l2[i];
177 break;
178 }
179 }
180
181 WARN_ON(!pixelformat);
182
183 vsp1_du_atomic_update(plane->vsp->vsp, plane->index, pixelformat,
184 fb->pitches[0], paddr, &src, &dst);
185}
186
187static int rcar_du_vsp_plane_atomic_check(struct drm_plane *plane,
188 struct drm_plane_state *state)
189{
190 struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
191 struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
192 struct rcar_du_device *rcdu = rplane->vsp->dev;
193
194 if (!state->fb || !state->crtc) {
195 rstate->format = NULL;
196 return 0;
197 }
198
199 if (state->src_w >> 16 != state->crtc_w ||
200 state->src_h >> 16 != state->crtc_h) {
201 dev_dbg(rcdu->dev, "%s: scaling not supported\n", __func__);
202 return -EINVAL;
203 }
204
205 rstate->format = rcar_du_format_info(state->fb->pixel_format);
206 if (rstate->format == NULL) {
207 dev_dbg(rcdu->dev, "%s: unsupported format %08x\n", __func__,
208 state->fb->pixel_format);
209 return -EINVAL;
210 }
211
212 return 0;
213}
214
215static void rcar_du_vsp_plane_atomic_update(struct drm_plane *plane,
216 struct drm_plane_state *old_state)
217{
218 struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
219
220 if (plane->state->crtc)
221 rcar_du_vsp_plane_setup(rplane);
222 else
223 vsp1_du_atomic_update(rplane->vsp->vsp, rplane->index, 0, 0, 0,
224 NULL, NULL);
225}
226
227static const struct drm_plane_helper_funcs rcar_du_vsp_plane_helper_funcs = {
228 .atomic_check = rcar_du_vsp_plane_atomic_check,
229 .atomic_update = rcar_du_vsp_plane_atomic_update,
230};
231
232static struct drm_plane_state *
233rcar_du_vsp_plane_atomic_duplicate_state(struct drm_plane *plane)
234{
235 struct rcar_du_vsp_plane_state *state;
236 struct rcar_du_vsp_plane_state *copy;
237
238 if (WARN_ON(!plane->state))
239 return NULL;
240
241 state = to_rcar_vsp_plane_state(plane->state);
242 copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
243 if (copy == NULL)
244 return NULL;
245
246 __drm_atomic_helper_plane_duplicate_state(plane, ©->state);
247
248 return ©->state;
249}
250
251static void rcar_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
252 struct drm_plane_state *state)
253{
254 __drm_atomic_helper_plane_destroy_state(plane, state);
255 kfree(to_rcar_vsp_plane_state(state));
256}
257
258static void rcar_du_vsp_plane_reset(struct drm_plane *plane)
259{
260 struct rcar_du_vsp_plane_state *state;
261
262 if (plane->state) {
263 rcar_du_vsp_plane_atomic_destroy_state(plane, plane->state);
264 plane->state = NULL;
265 }
266
267 state = kzalloc(sizeof(*state), GFP_KERNEL);
268 if (state == NULL)
269 return;
270
271 state->alpha = 255;
272
273 plane->state = &state->state;
274 plane->state->plane = plane;
275}
276
277static int rcar_du_vsp_plane_atomic_set_property(struct drm_plane *plane,
278 struct drm_plane_state *state, struct drm_property *property,
279 uint64_t val)
280{
281 struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
282 struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
283
284 if (property == rcdu->props.alpha)
285 rstate->alpha = val;
286 else
287 return -EINVAL;
288
289 return 0;
290}
291
292static int rcar_du_vsp_plane_atomic_get_property(struct drm_plane *plane,
293 const struct drm_plane_state *state, struct drm_property *property,
294 uint64_t *val)
295{
296 const struct rcar_du_vsp_plane_state *rstate =
297 container_of(state, const struct rcar_du_vsp_plane_state, state);
298 struct rcar_du_device *rcdu = to_rcar_vsp_plane(plane)->vsp->dev;
299
300 if (property == rcdu->props.alpha)
301 *val = rstate->alpha;
302 else
303 return -EINVAL;
304
305 return 0;
306}
307
308static const struct drm_plane_funcs rcar_du_vsp_plane_funcs = {
309 .update_plane = drm_atomic_helper_update_plane,
310 .disable_plane = drm_atomic_helper_disable_plane,
311 .reset = rcar_du_vsp_plane_reset,
312 .set_property = drm_atomic_helper_plane_set_property,
313 .destroy = drm_plane_cleanup,
314 .atomic_duplicate_state = rcar_du_vsp_plane_atomic_duplicate_state,
315 .atomic_destroy_state = rcar_du_vsp_plane_atomic_destroy_state,
316 .atomic_set_property = rcar_du_vsp_plane_atomic_set_property,
317 .atomic_get_property = rcar_du_vsp_plane_atomic_get_property,
318};
319
320int rcar_du_vsp_init(struct rcar_du_vsp *vsp)
321{
322 struct rcar_du_device *rcdu = vsp->dev;
323 struct platform_device *pdev;
324 struct device_node *np;
325 unsigned int i;
326 int ret;
327
328 /* Find the VSP device and initialize it. */
329 np = of_parse_phandle(rcdu->dev->of_node, "vsps", vsp->index);
330 if (!np) {
331 dev_err(rcdu->dev, "vsps node not found\n");
332 return -ENXIO;
333 }
334
335 pdev = of_find_device_by_node(np);
336 of_node_put(np);
337 if (!pdev)
338 return -ENXIO;
339
340 vsp->vsp = &pdev->dev;
341
342 ret = vsp1_du_init(vsp->vsp);
343 if (ret < 0)
344 return ret;
345
346 /* The VSP2D (Gen3) has 5 RPFs, but the VSP1D (Gen2) is limited to
347 * 4 RPFs.
348 */
349 vsp->num_planes = rcdu->info->gen >= 3 ? 5 : 4;
350
351 vsp->planes = devm_kcalloc(rcdu->dev, vsp->num_planes,
352 sizeof(*vsp->planes), GFP_KERNEL);
353 if (!vsp->planes)
354 return -ENOMEM;
355
356 for (i = 0; i < vsp->num_planes; ++i) {
357 enum drm_plane_type type = i ? DRM_PLANE_TYPE_OVERLAY
358 : DRM_PLANE_TYPE_PRIMARY;
359 struct rcar_du_vsp_plane *plane = &vsp->planes[i];
360
361 plane->vsp = vsp;
362 plane->index = i;
363
364 ret = drm_universal_plane_init(rcdu->ddev, &plane->plane,
365 1 << vsp->index,
366 &rcar_du_vsp_plane_funcs,
367 formats_kms,
368 ARRAY_SIZE(formats_kms), type,
369 NULL);
370 if (ret < 0)
371 return ret;
372
373 drm_plane_helper_add(&plane->plane,
374 &rcar_du_vsp_plane_helper_funcs);
375
376 if (type == DRM_PLANE_TYPE_PRIMARY)
377 continue;
378
379 drm_object_attach_property(&plane->plane.base,
380 rcdu->props.alpha, 255);
381 }
382
383 return 0;
384}
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * rcar_du_vsp.h -- R-Car Display Unit VSP-Based Compositor
4 *
5 * Copyright (C) 2015 Renesas Electronics Corporation
6 *
7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
8 */
9
10#include <drm/drm_atomic_helper.h>
11#include <drm/drm_crtc.h>
12#include <drm/drm_fb_cma_helper.h>
13#include <drm/drm_fourcc.h>
14#include <drm/drm_gem_cma_helper.h>
15#include <drm/drm_gem_framebuffer_helper.h>
16#include <drm/drm_plane_helper.h>
17#include <drm/drm_vblank.h>
18
19#include <linux/bitops.h>
20#include <linux/dma-mapping.h>
21#include <linux/of_platform.h>
22#include <linux/scatterlist.h>
23#include <linux/videodev2.h>
24
25#include <media/vsp1.h>
26
27#include "rcar_du_drv.h"
28#include "rcar_du_kms.h"
29#include "rcar_du_vsp.h"
30#include "rcar_du_writeback.h"
31
32static void rcar_du_vsp_complete(void *private, unsigned int status, u32 crc)
33{
34 struct rcar_du_crtc *crtc = private;
35
36 if (crtc->vblank_enable)
37 drm_crtc_handle_vblank(&crtc->crtc);
38
39 if (status & VSP1_DU_STATUS_COMPLETE)
40 rcar_du_crtc_finish_page_flip(crtc);
41 if (status & VSP1_DU_STATUS_WRITEBACK)
42 rcar_du_writeback_complete(crtc);
43
44 drm_crtc_add_crc_entry(&crtc->crtc, false, 0, &crc);
45}
46
47void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
48{
49 const struct drm_display_mode *mode = &crtc->crtc.state->adjusted_mode;
50 struct rcar_du_device *rcdu = crtc->dev;
51 struct vsp1_du_lif_config cfg = {
52 .width = mode->hdisplay,
53 .height = mode->vdisplay,
54 .interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE,
55 .callback = rcar_du_vsp_complete,
56 .callback_data = crtc,
57 };
58 struct rcar_du_plane_state state = {
59 .state = {
60 .alpha = DRM_BLEND_ALPHA_OPAQUE,
61 .crtc = &crtc->crtc,
62 .dst.x1 = 0,
63 .dst.y1 = 0,
64 .dst.x2 = mode->hdisplay,
65 .dst.y2 = mode->vdisplay,
66 .src.x1 = 0,
67 .src.y1 = 0,
68 .src.x2 = mode->hdisplay << 16,
69 .src.y2 = mode->vdisplay << 16,
70 .zpos = 0,
71 },
72 .format = rcar_du_format_info(DRM_FORMAT_ARGB8888),
73 .source = RCAR_DU_PLANE_VSPD1,
74 .colorkey = 0,
75 };
76
77 if (rcdu->info->gen >= 3)
78 state.hwindex = (crtc->index % 2) ? 2 : 0;
79 else
80 state.hwindex = crtc->index % 2;
81
82 __rcar_du_plane_setup(crtc->group, &state);
83
84 /*
85 * Ensure that the plane source configuration takes effect by requesting
86 * a restart of the group. See rcar_du_plane_atomic_update() for a more
87 * detailed explanation.
88 *
89 * TODO: Check whether this is still needed on Gen3.
90 */
91 crtc->group->need_restart = true;
92
93 vsp1_du_setup_lif(crtc->vsp->vsp, crtc->vsp_pipe, &cfg);
94}
95
96void rcar_du_vsp_disable(struct rcar_du_crtc *crtc)
97{
98 vsp1_du_setup_lif(crtc->vsp->vsp, crtc->vsp_pipe, NULL);
99}
100
101void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc)
102{
103 vsp1_du_atomic_begin(crtc->vsp->vsp, crtc->vsp_pipe);
104}
105
106void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc)
107{
108 struct vsp1_du_atomic_pipe_config cfg = { { 0, } };
109 struct rcar_du_crtc_state *state;
110
111 state = to_rcar_crtc_state(crtc->crtc.state);
112 cfg.crc = state->crc;
113
114 rcar_du_writeback_setup(crtc, &cfg.writeback);
115
116 vsp1_du_atomic_flush(crtc->vsp->vsp, crtc->vsp_pipe, &cfg);
117}
118
119static const u32 rcar_du_vsp_formats[] = {
120 DRM_FORMAT_RGB332,
121 DRM_FORMAT_ARGB4444,
122 DRM_FORMAT_XRGB4444,
123 DRM_FORMAT_ARGB1555,
124 DRM_FORMAT_XRGB1555,
125 DRM_FORMAT_RGB565,
126 DRM_FORMAT_BGR888,
127 DRM_FORMAT_RGB888,
128 DRM_FORMAT_BGRA8888,
129 DRM_FORMAT_BGRX8888,
130 DRM_FORMAT_ARGB8888,
131 DRM_FORMAT_XRGB8888,
132 DRM_FORMAT_UYVY,
133 DRM_FORMAT_YUYV,
134 DRM_FORMAT_YVYU,
135 DRM_FORMAT_NV12,
136 DRM_FORMAT_NV21,
137 DRM_FORMAT_NV16,
138 DRM_FORMAT_NV61,
139 DRM_FORMAT_YUV420,
140 DRM_FORMAT_YVU420,
141 DRM_FORMAT_YUV422,
142 DRM_FORMAT_YVU422,
143 DRM_FORMAT_YUV444,
144 DRM_FORMAT_YVU444,
145};
146
147static void rcar_du_vsp_plane_setup(struct rcar_du_vsp_plane *plane)
148{
149 struct rcar_du_vsp_plane_state *state =
150 to_rcar_vsp_plane_state(plane->plane.state);
151 struct rcar_du_crtc *crtc = to_rcar_crtc(state->state.crtc);
152 struct drm_framebuffer *fb = plane->plane.state->fb;
153 const struct rcar_du_format_info *format;
154 struct vsp1_du_atomic_config cfg = {
155 .pixelformat = 0,
156 .pitch = fb->pitches[0],
157 .alpha = state->state.alpha >> 8,
158 .zpos = state->state.zpos,
159 };
160 unsigned int i;
161
162 cfg.src.left = state->state.src.x1 >> 16;
163 cfg.src.top = state->state.src.y1 >> 16;
164 cfg.src.width = drm_rect_width(&state->state.src) >> 16;
165 cfg.src.height = drm_rect_height(&state->state.src) >> 16;
166
167 cfg.dst.left = state->state.dst.x1;
168 cfg.dst.top = state->state.dst.y1;
169 cfg.dst.width = drm_rect_width(&state->state.dst);
170 cfg.dst.height = drm_rect_height(&state->state.dst);
171
172 for (i = 0; i < state->format->planes; ++i)
173 cfg.mem[i] = sg_dma_address(state->sg_tables[i].sgl)
174 + fb->offsets[i];
175
176 format = rcar_du_format_info(state->format->fourcc);
177 cfg.pixelformat = format->v4l2;
178
179 vsp1_du_atomic_update(plane->vsp->vsp, crtc->vsp_pipe,
180 plane->index, &cfg);
181}
182
183int rcar_du_vsp_map_fb(struct rcar_du_vsp *vsp, struct drm_framebuffer *fb,
184 struct sg_table sg_tables[3])
185{
186 struct rcar_du_device *rcdu = vsp->dev;
187 unsigned int i;
188 int ret;
189
190 for (i = 0; i < fb->format->num_planes; ++i) {
191 struct drm_gem_cma_object *gem = drm_fb_cma_get_gem_obj(fb, i);
192 struct sg_table *sgt = &sg_tables[i];
193
194 ret = dma_get_sgtable(rcdu->dev, sgt, gem->vaddr, gem->paddr,
195 gem->base.size);
196 if (ret)
197 goto fail;
198
199 ret = vsp1_du_map_sg(vsp->vsp, sgt);
200 if (!ret) {
201 sg_free_table(sgt);
202 ret = -ENOMEM;
203 goto fail;
204 }
205 }
206
207 return 0;
208
209fail:
210 while (i--) {
211 struct sg_table *sgt = &sg_tables[i];
212
213 vsp1_du_unmap_sg(vsp->vsp, sgt);
214 sg_free_table(sgt);
215 }
216
217 return ret;
218}
219
220static int rcar_du_vsp_plane_prepare_fb(struct drm_plane *plane,
221 struct drm_plane_state *state)
222{
223 struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
224 struct rcar_du_vsp *vsp = to_rcar_vsp_plane(plane)->vsp;
225 int ret;
226
227 /*
228 * There's no need to prepare (and unprepare) the framebuffer when the
229 * plane is not visible, as it will not be displayed.
230 */
231 if (!state->visible)
232 return 0;
233
234 ret = rcar_du_vsp_map_fb(vsp, state->fb, rstate->sg_tables);
235 if (ret < 0)
236 return ret;
237
238 return drm_gem_fb_prepare_fb(plane, state);
239}
240
241void rcar_du_vsp_unmap_fb(struct rcar_du_vsp *vsp, struct drm_framebuffer *fb,
242 struct sg_table sg_tables[3])
243{
244 unsigned int i;
245
246 for (i = 0; i < fb->format->num_planes; ++i) {
247 struct sg_table *sgt = &sg_tables[i];
248
249 vsp1_du_unmap_sg(vsp->vsp, sgt);
250 sg_free_table(sgt);
251 }
252}
253
254static void rcar_du_vsp_plane_cleanup_fb(struct drm_plane *plane,
255 struct drm_plane_state *state)
256{
257 struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
258 struct rcar_du_vsp *vsp = to_rcar_vsp_plane(plane)->vsp;
259
260 if (!state->visible)
261 return;
262
263 rcar_du_vsp_unmap_fb(vsp, state->fb, rstate->sg_tables);
264}
265
266static int rcar_du_vsp_plane_atomic_check(struct drm_plane *plane,
267 struct drm_plane_state *state)
268{
269 struct rcar_du_vsp_plane_state *rstate = to_rcar_vsp_plane_state(state);
270
271 return __rcar_du_plane_atomic_check(plane, state, &rstate->format);
272}
273
274static void rcar_du_vsp_plane_atomic_update(struct drm_plane *plane,
275 struct drm_plane_state *old_state)
276{
277 struct rcar_du_vsp_plane *rplane = to_rcar_vsp_plane(plane);
278 struct rcar_du_crtc *crtc = to_rcar_crtc(old_state->crtc);
279
280 if (plane->state->visible)
281 rcar_du_vsp_plane_setup(rplane);
282 else
283 vsp1_du_atomic_update(rplane->vsp->vsp, crtc->vsp_pipe,
284 rplane->index, NULL);
285}
286
287static const struct drm_plane_helper_funcs rcar_du_vsp_plane_helper_funcs = {
288 .prepare_fb = rcar_du_vsp_plane_prepare_fb,
289 .cleanup_fb = rcar_du_vsp_plane_cleanup_fb,
290 .atomic_check = rcar_du_vsp_plane_atomic_check,
291 .atomic_update = rcar_du_vsp_plane_atomic_update,
292};
293
294static struct drm_plane_state *
295rcar_du_vsp_plane_atomic_duplicate_state(struct drm_plane *plane)
296{
297 struct rcar_du_vsp_plane_state *copy;
298
299 if (WARN_ON(!plane->state))
300 return NULL;
301
302 copy = kzalloc(sizeof(*copy), GFP_KERNEL);
303 if (copy == NULL)
304 return NULL;
305
306 __drm_atomic_helper_plane_duplicate_state(plane, ©->state);
307
308 return ©->state;
309}
310
311static void rcar_du_vsp_plane_atomic_destroy_state(struct drm_plane *plane,
312 struct drm_plane_state *state)
313{
314 __drm_atomic_helper_plane_destroy_state(state);
315 kfree(to_rcar_vsp_plane_state(state));
316}
317
318static void rcar_du_vsp_plane_reset(struct drm_plane *plane)
319{
320 struct rcar_du_vsp_plane_state *state;
321
322 if (plane->state) {
323 rcar_du_vsp_plane_atomic_destroy_state(plane, plane->state);
324 plane->state = NULL;
325 }
326
327 state = kzalloc(sizeof(*state), GFP_KERNEL);
328 if (state == NULL)
329 return;
330
331 __drm_atomic_helper_plane_reset(plane, &state->state);
332 state->state.zpos = plane->type == DRM_PLANE_TYPE_PRIMARY ? 0 : 1;
333}
334
335static const struct drm_plane_funcs rcar_du_vsp_plane_funcs = {
336 .update_plane = drm_atomic_helper_update_plane,
337 .disable_plane = drm_atomic_helper_disable_plane,
338 .reset = rcar_du_vsp_plane_reset,
339 .destroy = drm_plane_cleanup,
340 .atomic_duplicate_state = rcar_du_vsp_plane_atomic_duplicate_state,
341 .atomic_destroy_state = rcar_du_vsp_plane_atomic_destroy_state,
342};
343
344int rcar_du_vsp_init(struct rcar_du_vsp *vsp, struct device_node *np,
345 unsigned int crtcs)
346{
347 struct rcar_du_device *rcdu = vsp->dev;
348 struct platform_device *pdev;
349 unsigned int num_crtcs = hweight32(crtcs);
350 unsigned int i;
351 int ret;
352
353 /* Find the VSP device and initialize it. */
354 pdev = of_find_device_by_node(np);
355 if (!pdev)
356 return -ENXIO;
357
358 vsp->vsp = &pdev->dev;
359
360 ret = vsp1_du_init(vsp->vsp);
361 if (ret < 0)
362 return ret;
363
364 /*
365 * The VSP2D (Gen3) has 5 RPFs, but the VSP1D (Gen2) is limited to
366 * 4 RPFs.
367 */
368 vsp->num_planes = rcdu->info->gen >= 3 ? 5 : 4;
369
370 vsp->planes = devm_kcalloc(rcdu->dev, vsp->num_planes,
371 sizeof(*vsp->planes), GFP_KERNEL);
372 if (!vsp->planes)
373 return -ENOMEM;
374
375 for (i = 0; i < vsp->num_planes; ++i) {
376 enum drm_plane_type type = i < num_crtcs
377 ? DRM_PLANE_TYPE_PRIMARY
378 : DRM_PLANE_TYPE_OVERLAY;
379 struct rcar_du_vsp_plane *plane = &vsp->planes[i];
380
381 plane->vsp = vsp;
382 plane->index = i;
383
384 ret = drm_universal_plane_init(rcdu->ddev, &plane->plane, crtcs,
385 &rcar_du_vsp_plane_funcs,
386 rcar_du_vsp_formats,
387 ARRAY_SIZE(rcar_du_vsp_formats),
388 NULL, type, NULL);
389 if (ret < 0)
390 return ret;
391
392 drm_plane_helper_add(&plane->plane,
393 &rcar_du_vsp_plane_helper_funcs);
394
395 if (type == DRM_PLANE_TYPE_PRIMARY) {
396 drm_plane_create_zpos_immutable_property(&plane->plane,
397 0);
398 } else {
399 drm_plane_create_alpha_property(&plane->plane);
400 drm_plane_create_zpos_property(&plane->plane, 1, 1,
401 vsp->num_planes - 1);
402 }
403 }
404
405 return 0;
406}