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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2016 BayLibre, SAS
4 * Author: Neil Armstrong <narmstrong@baylibre.com>
5 * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
6 * Copyright (C) 2014 Endless Mobile
7 *
8 * Written by:
9 * Jasper St. Pierre <jstpierre@mecheye.net>
10 */
11
12#include <linux/bitfield.h>
13
14#include <drm/drm_atomic.h>
15#include <drm/drm_atomic_helper.h>
16#include <drm/drm_device.h>
17#include <drm/drm_fb_cma_helper.h>
18#include <drm/drm_fourcc.h>
19#include <drm/drm_gem_cma_helper.h>
20#include <drm/drm_gem_framebuffer_helper.h>
21#include <drm/drm_plane_helper.h>
22
23#include "meson_plane.h"
24#include "meson_registers.h"
25#include "meson_viu.h"
26#include "meson_osd_afbcd.h"
27
28/* OSD_SCI_WH_M1 */
29#define SCI_WH_M1_W(w) FIELD_PREP(GENMASK(28, 16), w)
30#define SCI_WH_M1_H(h) FIELD_PREP(GENMASK(12, 0), h)
31
32/* OSD_SCO_H_START_END */
33/* OSD_SCO_V_START_END */
34#define SCO_HV_START(start) FIELD_PREP(GENMASK(27, 16), start)
35#define SCO_HV_END(end) FIELD_PREP(GENMASK(11, 0), end)
36
37/* OSD_SC_CTRL0 */
38#define SC_CTRL0_PATH_EN BIT(3)
39#define SC_CTRL0_SEL_OSD1 BIT(2)
40
41/* OSD_VSC_CTRL0 */
42#define VSC_BANK_LEN(value) FIELD_PREP(GENMASK(2, 0), value)
43#define VSC_TOP_INI_RCV_NUM(value) FIELD_PREP(GENMASK(6, 3), value)
44#define VSC_TOP_RPT_L0_NUM(value) FIELD_PREP(GENMASK(9, 8), value)
45#define VSC_BOT_INI_RCV_NUM(value) FIELD_PREP(GENMASK(14, 11), value)
46#define VSC_BOT_RPT_L0_NUM(value) FIELD_PREP(GENMASK(17, 16), value)
47#define VSC_PROG_INTERLACE BIT(23)
48#define VSC_VERTICAL_SCALER_EN BIT(24)
49
50/* OSD_VSC_INI_PHASE */
51#define VSC_INI_PHASE_BOT(bottom) FIELD_PREP(GENMASK(31, 16), bottom)
52#define VSC_INI_PHASE_TOP(top) FIELD_PREP(GENMASK(15, 0), top)
53
54/* OSD_HSC_CTRL0 */
55#define HSC_BANK_LENGTH(value) FIELD_PREP(GENMASK(2, 0), value)
56#define HSC_INI_RCV_NUM0(value) FIELD_PREP(GENMASK(6, 3), value)
57#define HSC_RPT_P0_NUM0(value) FIELD_PREP(GENMASK(9, 8), value)
58#define HSC_HORIZ_SCALER_EN BIT(22)
59
60/* VPP_OSD_VSC_PHASE_STEP */
61/* VPP_OSD_HSC_PHASE_STEP */
62#define SC_PHASE_STEP(value) FIELD_PREP(GENMASK(27, 0), value)
63
64struct meson_plane {
65 struct drm_plane base;
66 struct meson_drm *priv;
67 bool enabled;
68};
69#define to_meson_plane(x) container_of(x, struct meson_plane, base)
70
71#define FRAC_16_16(mult, div) (((mult) << 16) / (div))
72
73static int meson_plane_atomic_check(struct drm_plane *plane,
74 struct drm_plane_state *state)
75{
76 struct drm_crtc_state *crtc_state;
77
78 if (!state->crtc)
79 return 0;
80
81 crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
82 if (IS_ERR(crtc_state))
83 return PTR_ERR(crtc_state);
84
85 /*
86 * Only allow :
87 * - Upscaling up to 5x, vertical and horizontal
88 * - Final coordinates must match crtc size
89 */
90 return drm_atomic_helper_check_plane_state(state, crtc_state,
91 FRAC_16_16(1, 5),
92 DRM_PLANE_HELPER_NO_SCALING,
93 false, true);
94}
95
96#define MESON_MOD_AFBC_VALID_BITS (AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 | \
97 AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 | \
98 AFBC_FORMAT_MOD_YTR | \
99 AFBC_FORMAT_MOD_SPARSE | \
100 AFBC_FORMAT_MOD_SPLIT)
101
102/* Takes a fixed 16.16 number and converts it to integer. */
103static inline int64_t fixed16_to_int(int64_t value)
104{
105 return value >> 16;
106}
107
108static u32 meson_g12a_afbcd_line_stride(struct meson_drm *priv)
109{
110 u32 line_stride = 0;
111
112 switch (priv->afbcd.format) {
113 case DRM_FORMAT_RGB565:
114 line_stride = ((priv->viu.osd1_width << 4) + 127) >> 7;
115 break;
116 case DRM_FORMAT_RGB888:
117 case DRM_FORMAT_XRGB8888:
118 case DRM_FORMAT_ARGB8888:
119 case DRM_FORMAT_XBGR8888:
120 case DRM_FORMAT_ABGR8888:
121 line_stride = ((priv->viu.osd1_width << 5) + 127) >> 7;
122 break;
123 }
124
125 return ((line_stride + 1) >> 1) << 1;
126}
127
128static void meson_plane_atomic_update(struct drm_plane *plane,
129 struct drm_plane_state *old_state)
130{
131 struct meson_plane *meson_plane = to_meson_plane(plane);
132 struct drm_plane_state *state = plane->state;
133 struct drm_rect dest = drm_plane_state_dest(state);
134 struct meson_drm *priv = meson_plane->priv;
135 struct drm_framebuffer *fb = state->fb;
136 struct drm_gem_cma_object *gem;
137 unsigned long flags;
138 int vsc_ini_rcv_num, vsc_ini_rpt_p0_num;
139 int vsc_bot_rcv_num, vsc_bot_rpt_p0_num;
140 int hsc_ini_rcv_num, hsc_ini_rpt_p0_num;
141 int hf_phase_step, vf_phase_step;
142 int src_w, src_h, dst_w, dst_h;
143 int bot_ini_phase;
144 int hf_bank_len;
145 int vf_bank_len;
146 u8 canvas_id_osd1;
147
148 /*
149 * Update Coordinates
150 * Update Formats
151 * Update Buffer
152 * Enable Plane
153 */
154 spin_lock_irqsave(&priv->drm->event_lock, flags);
155
156 /* Check if AFBC decoder is required for this buffer */
157 if ((meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
158 meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) &&
159 fb->modifier & DRM_FORMAT_MOD_ARM_AFBC(MESON_MOD_AFBC_VALID_BITS))
160 priv->viu.osd1_afbcd = true;
161 else
162 priv->viu.osd1_afbcd = false;
163
164 /* Enable OSD and BLK0, set max global alpha */
165 priv->viu.osd1_ctrl_stat = OSD_ENABLE |
166 (0xFF << OSD_GLOBAL_ALPHA_SHIFT) |
167 OSD_BLK0_ENABLE;
168
169 priv->viu.osd1_ctrl_stat2 = readl(priv->io_base +
170 _REG(VIU_OSD1_CTRL_STAT2));
171
172 canvas_id_osd1 = priv->canvas_id_osd1;
173
174 /* Set up BLK0 to point to the right canvas */
175 priv->viu.osd1_blk0_cfg[0] = canvas_id_osd1 << OSD_CANVAS_SEL;
176
177 if (priv->viu.osd1_afbcd) {
178 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
179 /* This is the internal decoding memory address */
180 priv->viu.osd1_blk1_cfg4 = MESON_G12A_AFBCD_OUT_ADDR;
181 priv->viu.osd1_blk0_cfg[0] |= OSD_ENDIANNESS_BE;
182 priv->viu.osd1_ctrl_stat2 |= OSD_PENDING_STAT_CLEAN;
183 priv->viu.osd1_ctrl_stat |= VIU_OSD1_CFG_SYN_EN;
184 }
185
186 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM)) {
187 priv->viu.osd1_blk0_cfg[0] |= OSD_ENDIANNESS_LE;
188 priv->viu.osd1_ctrl_stat2 |= OSD_DPATH_MALI_AFBCD;
189 }
190 } else {
191 priv->viu.osd1_blk0_cfg[0] |= OSD_ENDIANNESS_LE;
192
193 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM))
194 priv->viu.osd1_ctrl_stat2 &= ~OSD_DPATH_MALI_AFBCD;
195 }
196
197 /* On GXBB, Use the old non-HDR RGB2YUV converter */
198 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXBB))
199 priv->viu.osd1_blk0_cfg[0] |= OSD_OUTPUT_COLOR_RGB;
200
201 if (priv->viu.osd1_afbcd &&
202 meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
203 priv->viu.osd1_blk0_cfg[0] |= OSD_MALI_SRC_EN |
204 priv->afbcd.ops->fmt_to_blk_mode(fb->modifier,
205 fb->format->format);
206 } else {
207 switch (fb->format->format) {
208 case DRM_FORMAT_XRGB8888:
209 case DRM_FORMAT_ARGB8888:
210 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
211 OSD_COLOR_MATRIX_32_ARGB;
212 break;
213 case DRM_FORMAT_XBGR8888:
214 case DRM_FORMAT_ABGR8888:
215 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
216 OSD_COLOR_MATRIX_32_ABGR;
217 break;
218 case DRM_FORMAT_RGB888:
219 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_24 |
220 OSD_COLOR_MATRIX_24_RGB;
221 break;
222 case DRM_FORMAT_RGB565:
223 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_16 |
224 OSD_COLOR_MATRIX_16_RGB565;
225 break;
226 }
227 }
228
229 switch (fb->format->format) {
230 case DRM_FORMAT_XRGB8888:
231 case DRM_FORMAT_XBGR8888:
232 /* For XRGB, replace the pixel's alpha by 0xFF */
233 priv->viu.osd1_ctrl_stat2 |= OSD_REPLACE_EN;
234 break;
235 case DRM_FORMAT_ARGB8888:
236 case DRM_FORMAT_ABGR8888:
237 /* For ARGB, use the pixel's alpha */
238 priv->viu.osd1_ctrl_stat2 &= ~OSD_REPLACE_EN;
239 break;
240 }
241
242 /* Default scaler parameters */
243 vsc_bot_rcv_num = 0;
244 vsc_bot_rpt_p0_num = 0;
245 hf_bank_len = 4;
246 vf_bank_len = 4;
247
248 if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) {
249 vsc_bot_rcv_num = 6;
250 vsc_bot_rpt_p0_num = 2;
251 }
252
253 hsc_ini_rcv_num = hf_bank_len;
254 vsc_ini_rcv_num = vf_bank_len;
255 hsc_ini_rpt_p0_num = (hf_bank_len / 2) - 1;
256 vsc_ini_rpt_p0_num = (vf_bank_len / 2) - 1;
257
258 src_w = fixed16_to_int(state->src_w);
259 src_h = fixed16_to_int(state->src_h);
260 dst_w = state->crtc_w;
261 dst_h = state->crtc_h;
262
263 /*
264 * When the output is interlaced, the OSD must switch between
265 * each field using the INTERLACE_SEL_ODD (0) of VIU_OSD1_BLK0_CFG_W0
266 * at each vsync.
267 * But the vertical scaler can provide such funtionnality if
268 * is configured for 2:1 scaling with interlace options enabled.
269 */
270 if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) {
271 dest.y1 /= 2;
272 dest.y2 /= 2;
273 dst_h /= 2;
274 }
275
276 hf_phase_step = ((src_w << 18) / dst_w) << 6;
277 vf_phase_step = (src_h << 20) / dst_h;
278
279 if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE)
280 bot_ini_phase = ((vf_phase_step / 2) >> 4);
281 else
282 bot_ini_phase = 0;
283
284 vf_phase_step = (vf_phase_step << 4);
285
286 /* In interlaced mode, scaler is always active */
287 if (src_h != dst_h || src_w != dst_w) {
288 priv->viu.osd_sc_i_wh_m1 = SCI_WH_M1_W(src_w - 1) |
289 SCI_WH_M1_H(src_h - 1);
290 priv->viu.osd_sc_o_h_start_end = SCO_HV_START(dest.x1) |
291 SCO_HV_END(dest.x2 - 1);
292 priv->viu.osd_sc_o_v_start_end = SCO_HV_START(dest.y1) |
293 SCO_HV_END(dest.y2 - 1);
294 /* Enable OSD Scaler */
295 priv->viu.osd_sc_ctrl0 = SC_CTRL0_PATH_EN | SC_CTRL0_SEL_OSD1;
296 } else {
297 priv->viu.osd_sc_i_wh_m1 = 0;
298 priv->viu.osd_sc_o_h_start_end = 0;
299 priv->viu.osd_sc_o_v_start_end = 0;
300 priv->viu.osd_sc_ctrl0 = 0;
301 }
302
303 /* In interlaced mode, vertical scaler is always active */
304 if (src_h != dst_h) {
305 priv->viu.osd_sc_v_ctrl0 =
306 VSC_BANK_LEN(vf_bank_len) |
307 VSC_TOP_INI_RCV_NUM(vsc_ini_rcv_num) |
308 VSC_TOP_RPT_L0_NUM(vsc_ini_rpt_p0_num) |
309 VSC_VERTICAL_SCALER_EN;
310
311 if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE)
312 priv->viu.osd_sc_v_ctrl0 |=
313 VSC_BOT_INI_RCV_NUM(vsc_bot_rcv_num) |
314 VSC_BOT_RPT_L0_NUM(vsc_bot_rpt_p0_num) |
315 VSC_PROG_INTERLACE;
316
317 priv->viu.osd_sc_v_phase_step = SC_PHASE_STEP(vf_phase_step);
318 priv->viu.osd_sc_v_ini_phase = VSC_INI_PHASE_BOT(bot_ini_phase);
319 } else {
320 priv->viu.osd_sc_v_ctrl0 = 0;
321 priv->viu.osd_sc_v_phase_step = 0;
322 priv->viu.osd_sc_v_ini_phase = 0;
323 }
324
325 /* Horizontal scaler is only used if width does not match */
326 if (src_w != dst_w) {
327 priv->viu.osd_sc_h_ctrl0 =
328 HSC_BANK_LENGTH(hf_bank_len) |
329 HSC_INI_RCV_NUM0(hsc_ini_rcv_num) |
330 HSC_RPT_P0_NUM0(hsc_ini_rpt_p0_num) |
331 HSC_HORIZ_SCALER_EN;
332 priv->viu.osd_sc_h_phase_step = SC_PHASE_STEP(hf_phase_step);
333 priv->viu.osd_sc_h_ini_phase = 0;
334 } else {
335 priv->viu.osd_sc_h_ctrl0 = 0;
336 priv->viu.osd_sc_h_phase_step = 0;
337 priv->viu.osd_sc_h_ini_phase = 0;
338 }
339
340 /*
341 * The format of these registers is (x2 << 16 | x1),
342 * where x2 is exclusive.
343 * e.g. +30x1920 would be (1919 << 16) | 30
344 */
345 priv->viu.osd1_blk0_cfg[1] =
346 ((fixed16_to_int(state->src.x2) - 1) << 16) |
347 fixed16_to_int(state->src.x1);
348 priv->viu.osd1_blk0_cfg[2] =
349 ((fixed16_to_int(state->src.y2) - 1) << 16) |
350 fixed16_to_int(state->src.y1);
351 priv->viu.osd1_blk0_cfg[3] = ((dest.x2 - 1) << 16) | dest.x1;
352 priv->viu.osd1_blk0_cfg[4] = ((dest.y2 - 1) << 16) | dest.y1;
353
354 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) {
355 priv->viu.osd_blend_din0_scope_h = ((dest.x2 - 1) << 16) | dest.x1;
356 priv->viu.osd_blend_din0_scope_v = ((dest.y2 - 1) << 16) | dest.y1;
357 priv->viu.osb_blend0_size = dst_h << 16 | dst_w;
358 priv->viu.osb_blend1_size = dst_h << 16 | dst_w;
359 }
360
361 /* Update Canvas with buffer address */
362 gem = drm_fb_cma_get_gem_obj(fb, 0);
363
364 priv->viu.osd1_addr = gem->paddr;
365 priv->viu.osd1_stride = fb->pitches[0];
366 priv->viu.osd1_height = fb->height;
367 priv->viu.osd1_width = fb->width;
368
369 if (priv->viu.osd1_afbcd) {
370 priv->afbcd.modifier = fb->modifier;
371 priv->afbcd.format = fb->format->format;
372
373 /* Calculate decoder write stride */
374 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
375 priv->viu.osd1_blk2_cfg4 =
376 meson_g12a_afbcd_line_stride(priv);
377 }
378
379 if (!meson_plane->enabled) {
380 /* Reset OSD1 before enabling it on GXL+ SoCs */
381 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) ||
382 meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXL))
383 meson_viu_osd1_reset(priv);
384
385 meson_plane->enabled = true;
386 }
387
388 priv->viu.osd1_enabled = true;
389
390 spin_unlock_irqrestore(&priv->drm->event_lock, flags);
391}
392
393static void meson_plane_atomic_disable(struct drm_plane *plane,
394 struct drm_plane_state *old_state)
395{
396 struct meson_plane *meson_plane = to_meson_plane(plane);
397 struct meson_drm *priv = meson_plane->priv;
398
399 if (priv->afbcd.ops) {
400 priv->afbcd.ops->reset(priv);
401 priv->afbcd.ops->disable(priv);
402 }
403
404 /* Disable OSD1 */
405 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
406 writel_bits_relaxed(VIU_OSD1_POSTBLD_SRC_OSD1, 0,
407 priv->io_base + _REG(OSD1_BLEND_SRC_CTRL));
408 else
409 writel_bits_relaxed(VPP_OSD1_POSTBLEND, 0,
410 priv->io_base + _REG(VPP_MISC));
411
412 meson_plane->enabled = false;
413 priv->viu.osd1_enabled = false;
414}
415
416static const struct drm_plane_helper_funcs meson_plane_helper_funcs = {
417 .atomic_check = meson_plane_atomic_check,
418 .atomic_disable = meson_plane_atomic_disable,
419 .atomic_update = meson_plane_atomic_update,
420 .prepare_fb = drm_gem_fb_prepare_fb,
421};
422
423static bool meson_plane_format_mod_supported(struct drm_plane *plane,
424 u32 format, u64 modifier)
425{
426 struct meson_plane *meson_plane = to_meson_plane(plane);
427 struct meson_drm *priv = meson_plane->priv;
428 int i;
429
430 if (modifier == DRM_FORMAT_MOD_INVALID)
431 return false;
432
433 if (modifier == DRM_FORMAT_MOD_LINEAR)
434 return true;
435
436 if (!meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM) &&
437 !meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
438 return false;
439
440 if (modifier & ~DRM_FORMAT_MOD_ARM_AFBC(MESON_MOD_AFBC_VALID_BITS))
441 return false;
442
443 for (i = 0 ; i < plane->modifier_count ; ++i)
444 if (plane->modifiers[i] == modifier)
445 break;
446
447 if (i == plane->modifier_count) {
448 DRM_DEBUG_KMS("Unsupported modifier\n");
449 return false;
450 }
451
452 if (priv->afbcd.ops && priv->afbcd.ops->supported_fmt)
453 return priv->afbcd.ops->supported_fmt(modifier, format);
454
455 DRM_DEBUG_KMS("AFBC Unsupported\n");
456 return false;
457}
458
459static const struct drm_plane_funcs meson_plane_funcs = {
460 .update_plane = drm_atomic_helper_update_plane,
461 .disable_plane = drm_atomic_helper_disable_plane,
462 .destroy = drm_plane_cleanup,
463 .reset = drm_atomic_helper_plane_reset,
464 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
465 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
466 .format_mod_supported = meson_plane_format_mod_supported,
467};
468
469static const uint32_t supported_drm_formats[] = {
470 DRM_FORMAT_ARGB8888,
471 DRM_FORMAT_ABGR8888,
472 DRM_FORMAT_XRGB8888,
473 DRM_FORMAT_XBGR8888,
474 DRM_FORMAT_RGB888,
475 DRM_FORMAT_RGB565,
476};
477
478static const uint64_t format_modifiers_afbc_gxm[] = {
479 DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
480 AFBC_FORMAT_MOD_SPARSE |
481 AFBC_FORMAT_MOD_YTR),
482 /* SPLIT mandates SPARSE, RGB modes mandates YTR */
483 DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
484 AFBC_FORMAT_MOD_YTR |
485 AFBC_FORMAT_MOD_SPARSE |
486 AFBC_FORMAT_MOD_SPLIT),
487 DRM_FORMAT_MOD_LINEAR,
488 DRM_FORMAT_MOD_INVALID,
489};
490
491static const uint64_t format_modifiers_afbc_g12a[] = {
492 /*
493 * - TOFIX Support AFBC modifiers for YUV formats (16x16 + TILED)
494 * - SPLIT is mandatory for performances reasons when in 16x16
495 * block size
496 * - 32x8 block size + SPLIT is mandatory with 4K frame size
497 * for performances reasons
498 */
499 DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
500 AFBC_FORMAT_MOD_SPARSE |
501 AFBC_FORMAT_MOD_SPLIT),
502 DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 |
503 AFBC_FORMAT_MOD_YTR |
504 AFBC_FORMAT_MOD_SPARSE |
505 AFBC_FORMAT_MOD_SPLIT),
506 DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
507 AFBC_FORMAT_MOD_SPARSE),
508 DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
509 AFBC_FORMAT_MOD_YTR |
510 AFBC_FORMAT_MOD_SPARSE),
511 DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
512 AFBC_FORMAT_MOD_SPARSE |
513 AFBC_FORMAT_MOD_SPLIT),
514 DRM_FORMAT_MOD_ARM_AFBC(AFBC_FORMAT_MOD_BLOCK_SIZE_32x8 |
515 AFBC_FORMAT_MOD_YTR |
516 AFBC_FORMAT_MOD_SPARSE |
517 AFBC_FORMAT_MOD_SPLIT),
518 DRM_FORMAT_MOD_LINEAR,
519 DRM_FORMAT_MOD_INVALID,
520};
521
522static const uint64_t format_modifiers_default[] = {
523 DRM_FORMAT_MOD_LINEAR,
524 DRM_FORMAT_MOD_INVALID,
525};
526
527int meson_plane_create(struct meson_drm *priv)
528{
529 struct meson_plane *meson_plane;
530 struct drm_plane *plane;
531 const uint64_t *format_modifiers = format_modifiers_default;
532
533 meson_plane = devm_kzalloc(priv->drm->dev, sizeof(*meson_plane),
534 GFP_KERNEL);
535 if (!meson_plane)
536 return -ENOMEM;
537
538 meson_plane->priv = priv;
539 plane = &meson_plane->base;
540
541 if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_GXM))
542 format_modifiers = format_modifiers_afbc_gxm;
543 else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A))
544 format_modifiers = format_modifiers_afbc_g12a;
545
546 drm_universal_plane_init(priv->drm, plane, 0xFF,
547 &meson_plane_funcs,
548 supported_drm_formats,
549 ARRAY_SIZE(supported_drm_formats),
550 format_modifiers,
551 DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane");
552
553 drm_plane_helper_add(plane, &meson_plane_helper_funcs);
554
555 /* For now, OSD Primary plane is always on the front */
556 drm_plane_create_zpos_immutable_property(plane, 1);
557
558 priv->primary_plane = plane;
559
560 return 0;
561}
1/*
2 * Copyright (C) 2016 BayLibre, SAS
3 * Author: Neil Armstrong <narmstrong@baylibre.com>
4 * Copyright (C) 2015 Amlogic, Inc. All rights reserved.
5 * Copyright (C) 2014 Endless Mobile
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of the
10 * License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
19 *
20 * Written by:
21 * Jasper St. Pierre <jstpierre@mecheye.net>
22 */
23
24#include <linux/kernel.h>
25#include <linux/module.h>
26#include <linux/mutex.h>
27#include <linux/platform_device.h>
28#include <drm/drmP.h>
29#include <drm/drm_atomic.h>
30#include <drm/drm_atomic_helper.h>
31#include <drm/drm_plane_helper.h>
32#include <drm/drm_gem_cma_helper.h>
33#include <drm/drm_fb_cma_helper.h>
34#include <drm/drm_rect.h>
35
36#include "meson_plane.h"
37#include "meson_vpp.h"
38#include "meson_viu.h"
39#include "meson_canvas.h"
40#include "meson_registers.h"
41
42struct meson_plane {
43 struct drm_plane base;
44 struct meson_drm *priv;
45};
46#define to_meson_plane(x) container_of(x, struct meson_plane, base)
47
48static int meson_plane_atomic_check(struct drm_plane *plane,
49 struct drm_plane_state *state)
50{
51 struct drm_crtc_state *crtc_state;
52 struct drm_rect clip = { 0, };
53
54 if (!state->crtc)
55 return 0;
56
57 crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc);
58 if (IS_ERR(crtc_state))
59 return PTR_ERR(crtc_state);
60
61 clip.x2 = crtc_state->mode.hdisplay;
62 clip.y2 = crtc_state->mode.vdisplay;
63
64 return drm_plane_helper_check_state(state, &clip,
65 DRM_PLANE_HELPER_NO_SCALING,
66 DRM_PLANE_HELPER_NO_SCALING,
67 true, true);
68}
69
70/* Takes a fixed 16.16 number and converts it to integer. */
71static inline int64_t fixed16_to_int(int64_t value)
72{
73 return value >> 16;
74}
75
76static void meson_plane_atomic_update(struct drm_plane *plane,
77 struct drm_plane_state *old_state)
78{
79 struct meson_plane *meson_plane = to_meson_plane(plane);
80 struct drm_plane_state *state = plane->state;
81 struct drm_framebuffer *fb = state->fb;
82 struct meson_drm *priv = meson_plane->priv;
83 struct drm_gem_cma_object *gem;
84 struct drm_rect src = {
85 .x1 = (state->src_x),
86 .y1 = (state->src_y),
87 .x2 = (state->src_x + state->src_w),
88 .y2 = (state->src_y + state->src_h),
89 };
90 struct drm_rect dest = {
91 .x1 = state->crtc_x,
92 .y1 = state->crtc_y,
93 .x2 = state->crtc_x + state->crtc_w,
94 .y2 = state->crtc_y + state->crtc_h,
95 };
96 unsigned long flags;
97
98 /*
99 * Update Coordinates
100 * Update Formats
101 * Update Buffer
102 * Enable Plane
103 */
104 spin_lock_irqsave(&priv->drm->event_lock, flags);
105
106 /* Enable OSD and BLK0, set max global alpha */
107 priv->viu.osd1_ctrl_stat = OSD_ENABLE |
108 (0xFF << OSD_GLOBAL_ALPHA_SHIFT) |
109 OSD_BLK0_ENABLE;
110
111 /* Set up BLK0 to point to the right canvas */
112 priv->viu.osd1_blk0_cfg[0] = ((MESON_CANVAS_ID_OSD1 << OSD_CANVAS_SEL) |
113 OSD_ENDIANNESS_LE);
114
115 /* On GXBB, Use the old non-HDR RGB2YUV converter */
116 if (meson_vpu_is_compatible(priv, "amlogic,meson-gxbb-vpu"))
117 priv->viu.osd1_blk0_cfg[0] |= OSD_OUTPUT_COLOR_RGB;
118
119 switch (fb->pixel_format) {
120 case DRM_FORMAT_XRGB8888:
121 /* For XRGB, replace the pixel's alpha by 0xFF */
122 writel_bits_relaxed(OSD_REPLACE_EN, OSD_REPLACE_EN,
123 priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
124 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
125 OSD_COLOR_MATRIX_32_ARGB;
126 break;
127 case DRM_FORMAT_ARGB8888:
128 /* For ARGB, use the pixel's alpha */
129 writel_bits_relaxed(OSD_REPLACE_EN, 0,
130 priv->io_base + _REG(VIU_OSD1_CTRL_STAT2));
131 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_32 |
132 OSD_COLOR_MATRIX_32_ARGB;
133 break;
134 case DRM_FORMAT_RGB888:
135 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_24 |
136 OSD_COLOR_MATRIX_24_RGB;
137 break;
138 case DRM_FORMAT_RGB565:
139 priv->viu.osd1_blk0_cfg[0] |= OSD_BLK_MODE_16 |
140 OSD_COLOR_MATRIX_16_RGB565;
141 break;
142 };
143
144 if (state->crtc->mode.flags & DRM_MODE_FLAG_INTERLACE) {
145 priv->viu.osd1_interlace = true;
146
147 dest.y1 /= 2;
148 dest.y2 /= 2;
149 } else
150 priv->viu.osd1_interlace = false;
151
152 /*
153 * The format of these registers is (x2 << 16 | x1),
154 * where x2 is exclusive.
155 * e.g. +30x1920 would be (1919 << 16) | 30
156 */
157 priv->viu.osd1_blk0_cfg[1] = ((fixed16_to_int(src.x2) - 1) << 16) |
158 fixed16_to_int(src.x1);
159 priv->viu.osd1_blk0_cfg[2] = ((fixed16_to_int(src.y2) - 1) << 16) |
160 fixed16_to_int(src.y1);
161 priv->viu.osd1_blk0_cfg[3] = ((dest.x2 - 1) << 16) | dest.x1;
162 priv->viu.osd1_blk0_cfg[4] = ((dest.y2 - 1) << 16) | dest.y1;
163
164 /* Update Canvas with buffer address */
165 gem = drm_fb_cma_get_gem_obj(fb, 0);
166
167 meson_canvas_setup(priv, MESON_CANVAS_ID_OSD1,
168 gem->paddr, fb->pitches[0],
169 fb->height, MESON_CANVAS_WRAP_NONE,
170 MESON_CANVAS_BLKMODE_LINEAR);
171
172 spin_unlock_irqrestore(&priv->drm->event_lock, flags);
173}
174
175static void meson_plane_atomic_disable(struct drm_plane *plane,
176 struct drm_plane_state *old_state)
177{
178 struct meson_plane *meson_plane = to_meson_plane(plane);
179 struct meson_drm *priv = meson_plane->priv;
180
181 /* Disable OSD1 */
182 writel_bits_relaxed(VPP_OSD1_POSTBLEND, 0,
183 priv->io_base + _REG(VPP_MISC));
184
185}
186
187static const struct drm_plane_helper_funcs meson_plane_helper_funcs = {
188 .atomic_check = meson_plane_atomic_check,
189 .atomic_disable = meson_plane_atomic_disable,
190 .atomic_update = meson_plane_atomic_update,
191};
192
193static const struct drm_plane_funcs meson_plane_funcs = {
194 .update_plane = drm_atomic_helper_update_plane,
195 .disable_plane = drm_atomic_helper_disable_plane,
196 .destroy = drm_plane_cleanup,
197 .reset = drm_atomic_helper_plane_reset,
198 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
199 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
200};
201
202static const uint32_t supported_drm_formats[] = {
203 DRM_FORMAT_ARGB8888,
204 DRM_FORMAT_XRGB8888,
205 DRM_FORMAT_RGB888,
206 DRM_FORMAT_RGB565,
207};
208
209int meson_plane_create(struct meson_drm *priv)
210{
211 struct meson_plane *meson_plane;
212 struct drm_plane *plane;
213
214 meson_plane = devm_kzalloc(priv->drm->dev, sizeof(*meson_plane),
215 GFP_KERNEL);
216 if (!meson_plane)
217 return -ENOMEM;
218
219 meson_plane->priv = priv;
220 plane = &meson_plane->base;
221
222 drm_universal_plane_init(priv->drm, plane, 0xFF,
223 &meson_plane_funcs,
224 supported_drm_formats,
225 ARRAY_SIZE(supported_drm_formats),
226 DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane");
227
228 drm_plane_helper_add(plane, &meson_plane_helper_funcs);
229
230 priv->primary_plane = plane;
231
232 return 0;
233}