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7#include <drm/drm_damage_helper.h>
8#include <drm/drm_fourcc.h>
9
10#include "mdp4_kms.h"
11
12#define DOWN_SCALE_MAX 8
13#define UP_SCALE_MAX 8
14
15struct mdp4_plane {
16 struct drm_plane base;
17 const char *name;
18
19 enum mdp4_pipe pipe;
20
21 uint32_t caps;
22 uint32_t nformats;
23 uint32_t formats[32];
24
25 bool enabled;
26};
27#define to_mdp4_plane(x) container_of(x, struct mdp4_plane, base)
28
29
30static inline
31enum mdp4_frame_format mdp4_get_frame_format(struct drm_framebuffer *fb)
32{
33 bool is_tile = false;
34
35 if (fb->modifier == DRM_FORMAT_MOD_SAMSUNG_64_32_TILE)
36 is_tile = true;
37
38 if (fb->format->format == DRM_FORMAT_NV12 && is_tile)
39 return FRAME_TILE_YCBCR_420;
40
41 return FRAME_LINEAR;
42}
43
44static void mdp4_plane_set_scanout(struct drm_plane *plane,
45 struct drm_framebuffer *fb);
46static int mdp4_plane_mode_set(struct drm_plane *plane,
47 struct drm_crtc *crtc, struct drm_framebuffer *fb,
48 int crtc_x, int crtc_y,
49 unsigned int crtc_w, unsigned int crtc_h,
50 uint32_t src_x, uint32_t src_y,
51 uint32_t src_w, uint32_t src_h);
52
53static struct mdp4_kms *get_kms(struct drm_plane *plane)
54{
55 struct msm_drm_private *priv = plane->dev->dev_private;
56 return to_mdp4_kms(to_mdp_kms(priv->kms));
57}
58
59static void mdp4_plane_destroy(struct drm_plane *plane)
60{
61 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
62
63 drm_plane_cleanup(plane);
64
65 kfree(mdp4_plane);
66}
67
68
69static void mdp4_plane_install_properties(struct drm_plane *plane,
70 struct drm_mode_object *obj)
71{
72
73}
74
75static int mdp4_plane_set_property(struct drm_plane *plane,
76 struct drm_property *property, uint64_t val)
77{
78
79 return -EINVAL;
80}
81
82static const struct drm_plane_funcs mdp4_plane_funcs = {
83 .update_plane = drm_atomic_helper_update_plane,
84 .disable_plane = drm_atomic_helper_disable_plane,
85 .destroy = mdp4_plane_destroy,
86 .set_property = mdp4_plane_set_property,
87 .reset = drm_atomic_helper_plane_reset,
88 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
89 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
90};
91
92static void mdp4_plane_cleanup_fb(struct drm_plane *plane,
93 struct drm_plane_state *old_state)
94{
95 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
96 struct mdp4_kms *mdp4_kms = get_kms(plane);
97 struct msm_kms *kms = &mdp4_kms->base.base;
98 struct drm_framebuffer *fb = old_state->fb;
99
100 if (!fb)
101 return;
102
103 DBG("%s: cleanup: FB[%u]", mdp4_plane->name, fb->base.id);
104 msm_framebuffer_cleanup(fb, kms->aspace);
105}
106
107
108static int mdp4_plane_atomic_check(struct drm_plane *plane,
109 struct drm_plane_state *state)
110{
111 return 0;
112}
113
114static void mdp4_plane_atomic_update(struct drm_plane *plane,
115 struct drm_plane_state *old_state)
116{
117 struct drm_plane_state *state = plane->state;
118 int ret;
119
120 ret = mdp4_plane_mode_set(plane,
121 state->crtc, state->fb,
122 state->crtc_x, state->crtc_y,
123 state->crtc_w, state->crtc_h,
124 state->src_x, state->src_y,
125 state->src_w, state->src_h);
126
127 WARN_ON(ret < 0);
128}
129
130static const struct drm_plane_helper_funcs mdp4_plane_helper_funcs = {
131 .prepare_fb = msm_atomic_prepare_fb,
132 .cleanup_fb = mdp4_plane_cleanup_fb,
133 .atomic_check = mdp4_plane_atomic_check,
134 .atomic_update = mdp4_plane_atomic_update,
135};
136
137static void mdp4_plane_set_scanout(struct drm_plane *plane,
138 struct drm_framebuffer *fb)
139{
140 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
141 struct mdp4_kms *mdp4_kms = get_kms(plane);
142 struct msm_kms *kms = &mdp4_kms->base.base;
143 enum mdp4_pipe pipe = mdp4_plane->pipe;
144
145 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_A(pipe),
146 MDP4_PIPE_SRC_STRIDE_A_P0(fb->pitches[0]) |
147 MDP4_PIPE_SRC_STRIDE_A_P1(fb->pitches[1]));
148
149 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_STRIDE_B(pipe),
150 MDP4_PIPE_SRC_STRIDE_B_P2(fb->pitches[2]) |
151 MDP4_PIPE_SRC_STRIDE_B_P3(fb->pitches[3]));
152
153 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP0_BASE(pipe),
154 msm_framebuffer_iova(fb, kms->aspace, 0));
155 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP1_BASE(pipe),
156 msm_framebuffer_iova(fb, kms->aspace, 1));
157 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP2_BASE(pipe),
158 msm_framebuffer_iova(fb, kms->aspace, 2));
159 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRCP3_BASE(pipe),
160 msm_framebuffer_iova(fb, kms->aspace, 3));
161}
162
163static void mdp4_write_csc_config(struct mdp4_kms *mdp4_kms,
164 enum mdp4_pipe pipe, struct csc_cfg *csc)
165{
166 int i;
167
168 for (i = 0; i < ARRAY_SIZE(csc->matrix); i++) {
169 mdp4_write(mdp4_kms, REG_MDP4_PIPE_CSC_MV(pipe, i),
170 csc->matrix[i]);
171 }
172
173 for (i = 0; i < ARRAY_SIZE(csc->post_bias) ; i++) {
174 mdp4_write(mdp4_kms, REG_MDP4_PIPE_CSC_PRE_BV(pipe, i),
175 csc->pre_bias[i]);
176
177 mdp4_write(mdp4_kms, REG_MDP4_PIPE_CSC_POST_BV(pipe, i),
178 csc->post_bias[i]);
179 }
180
181 for (i = 0; i < ARRAY_SIZE(csc->post_clamp) ; i++) {
182 mdp4_write(mdp4_kms, REG_MDP4_PIPE_CSC_PRE_LV(pipe, i),
183 csc->pre_clamp[i]);
184
185 mdp4_write(mdp4_kms, REG_MDP4_PIPE_CSC_POST_LV(pipe, i),
186 csc->post_clamp[i]);
187 }
188}
189
190#define MDP4_VG_PHASE_STEP_DEFAULT 0x20000000
191
192static int mdp4_plane_mode_set(struct drm_plane *plane,
193 struct drm_crtc *crtc, struct drm_framebuffer *fb,
194 int crtc_x, int crtc_y,
195 unsigned int crtc_w, unsigned int crtc_h,
196 uint32_t src_x, uint32_t src_y,
197 uint32_t src_w, uint32_t src_h)
198{
199 struct drm_device *dev = plane->dev;
200 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
201 struct mdp4_kms *mdp4_kms = get_kms(plane);
202 enum mdp4_pipe pipe = mdp4_plane->pipe;
203 const struct mdp_format *format;
204 uint32_t op_mode = 0;
205 uint32_t phasex_step = MDP4_VG_PHASE_STEP_DEFAULT;
206 uint32_t phasey_step = MDP4_VG_PHASE_STEP_DEFAULT;
207 enum mdp4_frame_format frame_type;
208
209 if (!(crtc && fb)) {
210 DBG("%s: disabled!", mdp4_plane->name);
211 return 0;
212 }
213
214 frame_type = mdp4_get_frame_format(fb);
215
216
217 src_x = src_x >> 16;
218 src_y = src_y >> 16;
219 src_w = src_w >> 16;
220 src_h = src_h >> 16;
221
222 DBG("%s: FB[%u] %u,%u,%u,%u -> CRTC[%u] %d,%d,%u,%u", mdp4_plane->name,
223 fb->base.id, src_x, src_y, src_w, src_h,
224 crtc->base.id, crtc_x, crtc_y, crtc_w, crtc_h);
225
226 format = to_mdp_format(msm_framebuffer_format(fb));
227
228 if (src_w > (crtc_w * DOWN_SCALE_MAX)) {
229 DRM_DEV_ERROR(dev->dev, "Width down scaling exceeds limits!\n");
230 return -ERANGE;
231 }
232
233 if (src_h > (crtc_h * DOWN_SCALE_MAX)) {
234 DRM_DEV_ERROR(dev->dev, "Height down scaling exceeds limits!\n");
235 return -ERANGE;
236 }
237
238 if (crtc_w > (src_w * UP_SCALE_MAX)) {
239 DRM_DEV_ERROR(dev->dev, "Width up scaling exceeds limits!\n");
240 return -ERANGE;
241 }
242
243 if (crtc_h > (src_h * UP_SCALE_MAX)) {
244 DRM_DEV_ERROR(dev->dev, "Height up scaling exceeds limits!\n");
245 return -ERANGE;
246 }
247
248 if (src_w != crtc_w) {
249 uint32_t sel_unit = SCALE_FIR;
250 op_mode |= MDP4_PIPE_OP_MODE_SCALEX_EN;
251
252 if (MDP_FORMAT_IS_YUV(format)) {
253 if (crtc_w > src_w)
254 sel_unit = SCALE_PIXEL_RPT;
255 else if (crtc_w <= (src_w / 4))
256 sel_unit = SCALE_MN_PHASE;
257
258 op_mode |= MDP4_PIPE_OP_MODE_SCALEX_UNIT_SEL(sel_unit);
259 phasex_step = mult_frac(MDP4_VG_PHASE_STEP_DEFAULT,
260 src_w, crtc_w);
261 }
262 }
263
264 if (src_h != crtc_h) {
265 uint32_t sel_unit = SCALE_FIR;
266 op_mode |= MDP4_PIPE_OP_MODE_SCALEY_EN;
267
268 if (MDP_FORMAT_IS_YUV(format)) {
269
270 if (crtc_h > src_h)
271 sel_unit = SCALE_PIXEL_RPT;
272 else if (crtc_h <= (src_h / 4))
273 sel_unit = SCALE_MN_PHASE;
274
275 op_mode |= MDP4_PIPE_OP_MODE_SCALEY_UNIT_SEL(sel_unit);
276 phasey_step = mult_frac(MDP4_VG_PHASE_STEP_DEFAULT,
277 src_h, crtc_h);
278 }
279 }
280
281 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_SIZE(pipe),
282 MDP4_PIPE_SRC_SIZE_WIDTH(src_w) |
283 MDP4_PIPE_SRC_SIZE_HEIGHT(src_h));
284
285 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_XY(pipe),
286 MDP4_PIPE_SRC_XY_X(src_x) |
287 MDP4_PIPE_SRC_XY_Y(src_y));
288
289 mdp4_write(mdp4_kms, REG_MDP4_PIPE_DST_SIZE(pipe),
290 MDP4_PIPE_DST_SIZE_WIDTH(crtc_w) |
291 MDP4_PIPE_DST_SIZE_HEIGHT(crtc_h));
292
293 mdp4_write(mdp4_kms, REG_MDP4_PIPE_DST_XY(pipe),
294 MDP4_PIPE_DST_XY_X(crtc_x) |
295 MDP4_PIPE_DST_XY_Y(crtc_y));
296
297 mdp4_plane_set_scanout(plane, fb);
298
299 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_FORMAT(pipe),
300 MDP4_PIPE_SRC_FORMAT_A_BPC(format->bpc_a) |
301 MDP4_PIPE_SRC_FORMAT_R_BPC(format->bpc_r) |
302 MDP4_PIPE_SRC_FORMAT_G_BPC(format->bpc_g) |
303 MDP4_PIPE_SRC_FORMAT_B_BPC(format->bpc_b) |
304 COND(format->alpha_enable, MDP4_PIPE_SRC_FORMAT_ALPHA_ENABLE) |
305 MDP4_PIPE_SRC_FORMAT_CPP(format->cpp - 1) |
306 MDP4_PIPE_SRC_FORMAT_UNPACK_COUNT(format->unpack_count - 1) |
307 MDP4_PIPE_SRC_FORMAT_FETCH_PLANES(format->fetch_type) |
308 MDP4_PIPE_SRC_FORMAT_CHROMA_SAMP(format->chroma_sample) |
309 MDP4_PIPE_SRC_FORMAT_FRAME_FORMAT(frame_type) |
310 COND(format->unpack_tight, MDP4_PIPE_SRC_FORMAT_UNPACK_TIGHT));
311
312 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SRC_UNPACK(pipe),
313 MDP4_PIPE_SRC_UNPACK_ELEM0(format->unpack[0]) |
314 MDP4_PIPE_SRC_UNPACK_ELEM1(format->unpack[1]) |
315 MDP4_PIPE_SRC_UNPACK_ELEM2(format->unpack[2]) |
316 MDP4_PIPE_SRC_UNPACK_ELEM3(format->unpack[3]));
317
318 if (MDP_FORMAT_IS_YUV(format)) {
319 struct csc_cfg *csc = mdp_get_default_csc_cfg(CSC_YUV2RGB);
320
321 op_mode |= MDP4_PIPE_OP_MODE_SRC_YCBCR;
322 op_mode |= MDP4_PIPE_OP_MODE_CSC_EN;
323 mdp4_write_csc_config(mdp4_kms, pipe, csc);
324 }
325
326 mdp4_write(mdp4_kms, REG_MDP4_PIPE_OP_MODE(pipe), op_mode);
327 mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEX_STEP(pipe), phasex_step);
328 mdp4_write(mdp4_kms, REG_MDP4_PIPE_PHASEY_STEP(pipe), phasey_step);
329
330 if (frame_type != FRAME_LINEAR)
331 mdp4_write(mdp4_kms, REG_MDP4_PIPE_SSTILE_FRAME_SIZE(pipe),
332 MDP4_PIPE_SSTILE_FRAME_SIZE_WIDTH(src_w) |
333 MDP4_PIPE_SSTILE_FRAME_SIZE_HEIGHT(src_h));
334
335 return 0;
336}
337
338static const char *pipe_names[] = {
339 "VG1", "VG2",
340 "RGB1", "RGB2", "RGB3",
341 "VG3", "VG4",
342};
343
344enum mdp4_pipe mdp4_plane_pipe(struct drm_plane *plane)
345{
346 struct mdp4_plane *mdp4_plane = to_mdp4_plane(plane);
347 return mdp4_plane->pipe;
348}
349
350
351struct drm_plane *mdp4_plane_init(struct drm_device *dev,
352 enum mdp4_pipe pipe_id, bool private_plane)
353{
354 struct drm_plane *plane = NULL;
355 struct mdp4_plane *mdp4_plane;
356 int ret;
357 enum drm_plane_type type;
358
359 mdp4_plane = kzalloc(sizeof(*mdp4_plane), GFP_KERNEL);
360 if (!mdp4_plane) {
361 ret = -ENOMEM;
362 goto fail;
363 }
364
365 plane = &mdp4_plane->base;
366
367 mdp4_plane->pipe = pipe_id;
368 mdp4_plane->name = pipe_names[pipe_id];
369 mdp4_plane->caps = mdp4_pipe_caps(pipe_id);
370
371 mdp4_plane->nformats = mdp_get_formats(mdp4_plane->formats,
372 ARRAY_SIZE(mdp4_plane->formats),
373 !pipe_supports_yuv(mdp4_plane->caps));
374
375 type = private_plane ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY;
376 ret = drm_universal_plane_init(dev, plane, 0xff, &mdp4_plane_funcs,
377 mdp4_plane->formats, mdp4_plane->nformats,
378 NULL, type, NULL);
379 if (ret)
380 goto fail;
381
382 drm_plane_helper_add(plane, &mdp4_plane_helper_funcs);
383
384 mdp4_plane_install_properties(plane, &plane->base);
385
386 drm_plane_enable_fb_damage_clips(plane);
387
388 return plane;
389
390fail:
391 if (plane)
392 mdp4_plane_destroy(plane);
393
394 return ERR_PTR(ret);
395}
396
