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Commit | Line | Data |
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d8f4a9ed TR |
1 | /* |
2 | * Copyright (C) 2012 Avionic Design GmbH | |
3 | * Copyright (C) 2012 NVIDIA CORPORATION. All rights reserved. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | */ | |
9 | ||
10 | #include <linux/clk.h> | |
9eb9b220 | 11 | #include <linux/debugfs.h> |
df06b759 | 12 | #include <linux/iommu.h> |
ca48080a | 13 | #include <linux/reset.h> |
d8f4a9ed | 14 | |
9c012700 TR |
15 | #include <soc/tegra/pmc.h> |
16 | ||
de2ba664 AM |
17 | #include "dc.h" |
18 | #include "drm.h" | |
19 | #include "gem.h" | |
d8f4a9ed | 20 | |
9d44189f | 21 | #include <drm/drm_atomic.h> |
4aa3df71 | 22 | #include <drm/drm_atomic_helper.h> |
3cb9ae4f DV |
23 | #include <drm/drm_plane_helper.h> |
24 | ||
8620fc62 | 25 | struct tegra_dc_soc_info { |
42d0659b | 26 | bool supports_border_color; |
8620fc62 | 27 | bool supports_interlacing; |
e687651b | 28 | bool supports_cursor; |
c134f019 | 29 | bool supports_block_linear; |
d1f3e1e0 | 30 | unsigned int pitch_align; |
9c012700 | 31 | bool has_powergate; |
8620fc62 TR |
32 | }; |
33 | ||
f34bc787 TR |
34 | struct tegra_plane { |
35 | struct drm_plane base; | |
36 | unsigned int index; | |
d8f4a9ed TR |
37 | }; |
38 | ||
f34bc787 TR |
39 | static inline struct tegra_plane *to_tegra_plane(struct drm_plane *plane) |
40 | { | |
41 | return container_of(plane, struct tegra_plane, base); | |
42 | } | |
43 | ||
ca915b10 TR |
44 | struct tegra_dc_state { |
45 | struct drm_crtc_state base; | |
46 | ||
47 | struct clk *clk; | |
48 | unsigned long pclk; | |
49 | unsigned int div; | |
47802b09 TR |
50 | |
51 | u32 planes; | |
ca915b10 TR |
52 | }; |
53 | ||
54 | static inline struct tegra_dc_state *to_dc_state(struct drm_crtc_state *state) | |
55 | { | |
56 | if (state) | |
57 | return container_of(state, struct tegra_dc_state, base); | |
58 | ||
59 | return NULL; | |
60 | } | |
61 | ||
8f604f8c TR |
62 | struct tegra_plane_state { |
63 | struct drm_plane_state base; | |
64 | ||
65 | struct tegra_bo_tiling tiling; | |
66 | u32 format; | |
67 | u32 swap; | |
68 | }; | |
69 | ||
70 | static inline struct tegra_plane_state * | |
71 | to_tegra_plane_state(struct drm_plane_state *state) | |
72 | { | |
73 | if (state) | |
74 | return container_of(state, struct tegra_plane_state, base); | |
75 | ||
76 | return NULL; | |
77 | } | |
78 | ||
791ddb1e TR |
79 | static void tegra_dc_stats_reset(struct tegra_dc_stats *stats) |
80 | { | |
81 | stats->frames = 0; | |
82 | stats->vblank = 0; | |
83 | stats->underflow = 0; | |
84 | stats->overflow = 0; | |
85 | } | |
86 | ||
86df256f TR |
87 | /* |
88 | * Reads the active copy of a register. This takes the dc->lock spinlock to | |
89 | * prevent races with the VBLANK processing which also needs access to the | |
90 | * active copy of some registers. | |
91 | */ | |
92 | static u32 tegra_dc_readl_active(struct tegra_dc *dc, unsigned long offset) | |
93 | { | |
94 | unsigned long flags; | |
95 | u32 value; | |
96 | ||
97 | spin_lock_irqsave(&dc->lock, flags); | |
98 | ||
99 | tegra_dc_writel(dc, READ_MUX, DC_CMD_STATE_ACCESS); | |
100 | value = tegra_dc_readl(dc, offset); | |
101 | tegra_dc_writel(dc, 0, DC_CMD_STATE_ACCESS); | |
102 | ||
103 | spin_unlock_irqrestore(&dc->lock, flags); | |
104 | return value; | |
105 | } | |
106 | ||
d700ba7a TR |
107 | /* |
108 | * Double-buffered registers have two copies: ASSEMBLY and ACTIVE. When the | |
109 | * *_ACT_REQ bits are set the ASSEMBLY copy is latched into the ACTIVE copy. | |
110 | * Latching happens mmediately if the display controller is in STOP mode or | |
111 | * on the next frame boundary otherwise. | |
112 | * | |
113 | * Triple-buffered registers have three copies: ASSEMBLY, ARM and ACTIVE. The | |
114 | * ASSEMBLY copy is latched into the ARM copy immediately after *_UPDATE bits | |
115 | * are written. When the *_ACT_REQ bits are written, the ARM copy is latched | |
116 | * into the ACTIVE copy, either immediately if the display controller is in | |
117 | * STOP mode, or at the next frame boundary otherwise. | |
118 | */ | |
62b9e063 | 119 | void tegra_dc_commit(struct tegra_dc *dc) |
205d48ed TR |
120 | { |
121 | tegra_dc_writel(dc, GENERAL_ACT_REQ << 8, DC_CMD_STATE_CONTROL); | |
122 | tegra_dc_writel(dc, GENERAL_ACT_REQ, DC_CMD_STATE_CONTROL); | |
123 | } | |
124 | ||
8f604f8c | 125 | static int tegra_dc_format(u32 fourcc, u32 *format, u32 *swap) |
10288eea TR |
126 | { |
127 | /* assume no swapping of fetched data */ | |
128 | if (swap) | |
129 | *swap = BYTE_SWAP_NOSWAP; | |
130 | ||
8f604f8c | 131 | switch (fourcc) { |
10288eea | 132 | case DRM_FORMAT_XBGR8888: |
8f604f8c TR |
133 | *format = WIN_COLOR_DEPTH_R8G8B8A8; |
134 | break; | |
10288eea TR |
135 | |
136 | case DRM_FORMAT_XRGB8888: | |
8f604f8c TR |
137 | *format = WIN_COLOR_DEPTH_B8G8R8A8; |
138 | break; | |
10288eea TR |
139 | |
140 | case DRM_FORMAT_RGB565: | |
8f604f8c TR |
141 | *format = WIN_COLOR_DEPTH_B5G6R5; |
142 | break; | |
10288eea TR |
143 | |
144 | case DRM_FORMAT_UYVY: | |
8f604f8c TR |
145 | *format = WIN_COLOR_DEPTH_YCbCr422; |
146 | break; | |
10288eea TR |
147 | |
148 | case DRM_FORMAT_YUYV: | |
149 | if (swap) | |
150 | *swap = BYTE_SWAP_SWAP2; | |
151 | ||
8f604f8c TR |
152 | *format = WIN_COLOR_DEPTH_YCbCr422; |
153 | break; | |
10288eea TR |
154 | |
155 | case DRM_FORMAT_YUV420: | |
8f604f8c TR |
156 | *format = WIN_COLOR_DEPTH_YCbCr420P; |
157 | break; | |
10288eea TR |
158 | |
159 | case DRM_FORMAT_YUV422: | |
8f604f8c TR |
160 | *format = WIN_COLOR_DEPTH_YCbCr422P; |
161 | break; | |
10288eea TR |
162 | |
163 | default: | |
8f604f8c | 164 | return -EINVAL; |
10288eea TR |
165 | } |
166 | ||
8f604f8c | 167 | return 0; |
10288eea TR |
168 | } |
169 | ||
170 | static bool tegra_dc_format_is_yuv(unsigned int format, bool *planar) | |
171 | { | |
172 | switch (format) { | |
173 | case WIN_COLOR_DEPTH_YCbCr422: | |
174 | case WIN_COLOR_DEPTH_YUV422: | |
175 | if (planar) | |
176 | *planar = false; | |
177 | ||
178 | return true; | |
179 | ||
180 | case WIN_COLOR_DEPTH_YCbCr420P: | |
181 | case WIN_COLOR_DEPTH_YUV420P: | |
182 | case WIN_COLOR_DEPTH_YCbCr422P: | |
183 | case WIN_COLOR_DEPTH_YUV422P: | |
184 | case WIN_COLOR_DEPTH_YCbCr422R: | |
185 | case WIN_COLOR_DEPTH_YUV422R: | |
186 | case WIN_COLOR_DEPTH_YCbCr422RA: | |
187 | case WIN_COLOR_DEPTH_YUV422RA: | |
188 | if (planar) | |
189 | *planar = true; | |
190 | ||
191 | return true; | |
192 | } | |
193 | ||
fb35c6b6 TR |
194 | if (planar) |
195 | *planar = false; | |
196 | ||
10288eea TR |
197 | return false; |
198 | } | |
199 | ||
200 | static inline u32 compute_dda_inc(unsigned int in, unsigned int out, bool v, | |
201 | unsigned int bpp) | |
202 | { | |
203 | fixed20_12 outf = dfixed_init(out); | |
204 | fixed20_12 inf = dfixed_init(in); | |
205 | u32 dda_inc; | |
206 | int max; | |
207 | ||
208 | if (v) | |
209 | max = 15; | |
210 | else { | |
211 | switch (bpp) { | |
212 | case 2: | |
213 | max = 8; | |
214 | break; | |
215 | ||
216 | default: | |
217 | WARN_ON_ONCE(1); | |
218 | /* fallthrough */ | |
219 | case 4: | |
220 | max = 4; | |
221 | break; | |
222 | } | |
223 | } | |
224 | ||
225 | outf.full = max_t(u32, outf.full - dfixed_const(1), dfixed_const(1)); | |
226 | inf.full -= dfixed_const(1); | |
227 | ||
228 | dda_inc = dfixed_div(inf, outf); | |
229 | dda_inc = min_t(u32, dda_inc, dfixed_const(max)); | |
230 | ||
231 | return dda_inc; | |
232 | } | |
233 | ||
234 | static inline u32 compute_initial_dda(unsigned int in) | |
235 | { | |
236 | fixed20_12 inf = dfixed_init(in); | |
237 | return dfixed_frac(inf); | |
238 | } | |
239 | ||
4aa3df71 TR |
240 | static void tegra_dc_setup_window(struct tegra_dc *dc, unsigned int index, |
241 | const struct tegra_dc_window *window) | |
10288eea TR |
242 | { |
243 | unsigned h_offset, v_offset, h_size, v_size, h_dda, v_dda, bpp; | |
93396d0f | 244 | unsigned long value, flags; |
10288eea TR |
245 | bool yuv, planar; |
246 | ||
247 | /* | |
248 | * For YUV planar modes, the number of bytes per pixel takes into | |
249 | * account only the luma component and therefore is 1. | |
250 | */ | |
251 | yuv = tegra_dc_format_is_yuv(window->format, &planar); | |
252 | if (!yuv) | |
253 | bpp = window->bits_per_pixel / 8; | |
254 | else | |
255 | bpp = planar ? 1 : 2; | |
256 | ||
93396d0f SP |
257 | spin_lock_irqsave(&dc->lock, flags); |
258 | ||
10288eea TR |
259 | value = WINDOW_A_SELECT << index; |
260 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER); | |
261 | ||
262 | tegra_dc_writel(dc, window->format, DC_WIN_COLOR_DEPTH); | |
263 | tegra_dc_writel(dc, window->swap, DC_WIN_BYTE_SWAP); | |
264 | ||
265 | value = V_POSITION(window->dst.y) | H_POSITION(window->dst.x); | |
266 | tegra_dc_writel(dc, value, DC_WIN_POSITION); | |
267 | ||
268 | value = V_SIZE(window->dst.h) | H_SIZE(window->dst.w); | |
269 | tegra_dc_writel(dc, value, DC_WIN_SIZE); | |
270 | ||
271 | h_offset = window->src.x * bpp; | |
272 | v_offset = window->src.y; | |
273 | h_size = window->src.w * bpp; | |
274 | v_size = window->src.h; | |
275 | ||
276 | value = V_PRESCALED_SIZE(v_size) | H_PRESCALED_SIZE(h_size); | |
277 | tegra_dc_writel(dc, value, DC_WIN_PRESCALED_SIZE); | |
278 | ||
279 | /* | |
280 | * For DDA computations the number of bytes per pixel for YUV planar | |
281 | * modes needs to take into account all Y, U and V components. | |
282 | */ | |
283 | if (yuv && planar) | |
284 | bpp = 2; | |
285 | ||
286 | h_dda = compute_dda_inc(window->src.w, window->dst.w, false, bpp); | |
287 | v_dda = compute_dda_inc(window->src.h, window->dst.h, true, bpp); | |
288 | ||
289 | value = V_DDA_INC(v_dda) | H_DDA_INC(h_dda); | |
290 | tegra_dc_writel(dc, value, DC_WIN_DDA_INC); | |
291 | ||
292 | h_dda = compute_initial_dda(window->src.x); | |
293 | v_dda = compute_initial_dda(window->src.y); | |
294 | ||
295 | tegra_dc_writel(dc, h_dda, DC_WIN_H_INITIAL_DDA); | |
296 | tegra_dc_writel(dc, v_dda, DC_WIN_V_INITIAL_DDA); | |
297 | ||
298 | tegra_dc_writel(dc, 0, DC_WIN_UV_BUF_STRIDE); | |
299 | tegra_dc_writel(dc, 0, DC_WIN_BUF_STRIDE); | |
300 | ||
301 | tegra_dc_writel(dc, window->base[0], DC_WINBUF_START_ADDR); | |
302 | ||
303 | if (yuv && planar) { | |
304 | tegra_dc_writel(dc, window->base[1], DC_WINBUF_START_ADDR_U); | |
305 | tegra_dc_writel(dc, window->base[2], DC_WINBUF_START_ADDR_V); | |
306 | value = window->stride[1] << 16 | window->stride[0]; | |
307 | tegra_dc_writel(dc, value, DC_WIN_LINE_STRIDE); | |
308 | } else { | |
309 | tegra_dc_writel(dc, window->stride[0], DC_WIN_LINE_STRIDE); | |
310 | } | |
311 | ||
312 | if (window->bottom_up) | |
313 | v_offset += window->src.h - 1; | |
314 | ||
315 | tegra_dc_writel(dc, h_offset, DC_WINBUF_ADDR_H_OFFSET); | |
316 | tegra_dc_writel(dc, v_offset, DC_WINBUF_ADDR_V_OFFSET); | |
317 | ||
c134f019 TR |
318 | if (dc->soc->supports_block_linear) { |
319 | unsigned long height = window->tiling.value; | |
320 | ||
321 | switch (window->tiling.mode) { | |
322 | case TEGRA_BO_TILING_MODE_PITCH: | |
323 | value = DC_WINBUF_SURFACE_KIND_PITCH; | |
324 | break; | |
325 | ||
326 | case TEGRA_BO_TILING_MODE_TILED: | |
327 | value = DC_WINBUF_SURFACE_KIND_TILED; | |
328 | break; | |
329 | ||
330 | case TEGRA_BO_TILING_MODE_BLOCK: | |
331 | value = DC_WINBUF_SURFACE_KIND_BLOCK_HEIGHT(height) | | |
332 | DC_WINBUF_SURFACE_KIND_BLOCK; | |
333 | break; | |
334 | } | |
335 | ||
336 | tegra_dc_writel(dc, value, DC_WINBUF_SURFACE_KIND); | |
10288eea | 337 | } else { |
c134f019 TR |
338 | switch (window->tiling.mode) { |
339 | case TEGRA_BO_TILING_MODE_PITCH: | |
340 | value = DC_WIN_BUFFER_ADDR_MODE_LINEAR_UV | | |
341 | DC_WIN_BUFFER_ADDR_MODE_LINEAR; | |
342 | break; | |
10288eea | 343 | |
c134f019 TR |
344 | case TEGRA_BO_TILING_MODE_TILED: |
345 | value = DC_WIN_BUFFER_ADDR_MODE_TILE_UV | | |
346 | DC_WIN_BUFFER_ADDR_MODE_TILE; | |
347 | break; | |
348 | ||
349 | case TEGRA_BO_TILING_MODE_BLOCK: | |
4aa3df71 TR |
350 | /* |
351 | * No need to handle this here because ->atomic_check | |
352 | * will already have filtered it out. | |
353 | */ | |
354 | break; | |
c134f019 TR |
355 | } |
356 | ||
357 | tegra_dc_writel(dc, value, DC_WIN_BUFFER_ADDR_MODE); | |
358 | } | |
10288eea TR |
359 | |
360 | value = WIN_ENABLE; | |
361 | ||
362 | if (yuv) { | |
363 | /* setup default colorspace conversion coefficients */ | |
364 | tegra_dc_writel(dc, 0x00f0, DC_WIN_CSC_YOF); | |
365 | tegra_dc_writel(dc, 0x012a, DC_WIN_CSC_KYRGB); | |
366 | tegra_dc_writel(dc, 0x0000, DC_WIN_CSC_KUR); | |
367 | tegra_dc_writel(dc, 0x0198, DC_WIN_CSC_KVR); | |
368 | tegra_dc_writel(dc, 0x039b, DC_WIN_CSC_KUG); | |
369 | tegra_dc_writel(dc, 0x032f, DC_WIN_CSC_KVG); | |
370 | tegra_dc_writel(dc, 0x0204, DC_WIN_CSC_KUB); | |
371 | tegra_dc_writel(dc, 0x0000, DC_WIN_CSC_KVB); | |
372 | ||
373 | value |= CSC_ENABLE; | |
374 | } else if (window->bits_per_pixel < 24) { | |
375 | value |= COLOR_EXPAND; | |
376 | } | |
377 | ||
378 | if (window->bottom_up) | |
379 | value |= V_DIRECTION; | |
380 | ||
381 | tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS); | |
382 | ||
383 | /* | |
384 | * Disable blending and assume Window A is the bottom-most window, | |
385 | * Window C is the top-most window and Window B is in the middle. | |
386 | */ | |
387 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_NOKEY); | |
388 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_1WIN); | |
389 | ||
390 | switch (index) { | |
391 | case 0: | |
392 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_2WIN_X); | |
393 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_2WIN_Y); | |
394 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_3WIN_XY); | |
395 | break; | |
396 | ||
397 | case 1: | |
398 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_2WIN_X); | |
399 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_2WIN_Y); | |
400 | tegra_dc_writel(dc, 0x000000, DC_WIN_BLEND_3WIN_XY); | |
401 | break; | |
402 | ||
403 | case 2: | |
404 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_2WIN_X); | |
405 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_2WIN_Y); | |
406 | tegra_dc_writel(dc, 0xffff00, DC_WIN_BLEND_3WIN_XY); | |
407 | break; | |
408 | } | |
409 | ||
93396d0f | 410 | spin_unlock_irqrestore(&dc->lock, flags); |
c7679306 TR |
411 | } |
412 | ||
413 | static void tegra_plane_destroy(struct drm_plane *plane) | |
414 | { | |
415 | struct tegra_plane *p = to_tegra_plane(plane); | |
416 | ||
417 | drm_plane_cleanup(plane); | |
418 | kfree(p); | |
419 | } | |
420 | ||
421 | static const u32 tegra_primary_plane_formats[] = { | |
422 | DRM_FORMAT_XBGR8888, | |
423 | DRM_FORMAT_XRGB8888, | |
424 | DRM_FORMAT_RGB565, | |
425 | }; | |
426 | ||
4aa3df71 | 427 | static void tegra_primary_plane_destroy(struct drm_plane *plane) |
c7679306 | 428 | { |
4aa3df71 TR |
429 | tegra_plane_destroy(plane); |
430 | } | |
431 | ||
8f604f8c TR |
432 | static void tegra_plane_reset(struct drm_plane *plane) |
433 | { | |
434 | struct tegra_plane_state *state; | |
435 | ||
3b59b7ac TR |
436 | if (plane->state) |
437 | __drm_atomic_helper_plane_destroy_state(plane, plane->state); | |
8f604f8c TR |
438 | |
439 | kfree(plane->state); | |
440 | plane->state = NULL; | |
441 | ||
442 | state = kzalloc(sizeof(*state), GFP_KERNEL); | |
443 | if (state) { | |
444 | plane->state = &state->base; | |
445 | plane->state->plane = plane; | |
446 | } | |
447 | } | |
448 | ||
449 | static struct drm_plane_state *tegra_plane_atomic_duplicate_state(struct drm_plane *plane) | |
450 | { | |
451 | struct tegra_plane_state *state = to_tegra_plane_state(plane->state); | |
452 | struct tegra_plane_state *copy; | |
453 | ||
3b59b7ac | 454 | copy = kmalloc(sizeof(*copy), GFP_KERNEL); |
8f604f8c TR |
455 | if (!copy) |
456 | return NULL; | |
457 | ||
3b59b7ac TR |
458 | __drm_atomic_helper_plane_duplicate_state(plane, ©->base); |
459 | copy->tiling = state->tiling; | |
460 | copy->format = state->format; | |
461 | copy->swap = state->swap; | |
8f604f8c TR |
462 | |
463 | return ©->base; | |
464 | } | |
465 | ||
466 | static void tegra_plane_atomic_destroy_state(struct drm_plane *plane, | |
467 | struct drm_plane_state *state) | |
468 | { | |
3b59b7ac | 469 | __drm_atomic_helper_plane_destroy_state(plane, state); |
8f604f8c TR |
470 | kfree(state); |
471 | } | |
472 | ||
4aa3df71 | 473 | static const struct drm_plane_funcs tegra_primary_plane_funcs = { |
07866963 TR |
474 | .update_plane = drm_atomic_helper_update_plane, |
475 | .disable_plane = drm_atomic_helper_disable_plane, | |
4aa3df71 | 476 | .destroy = tegra_primary_plane_destroy, |
8f604f8c TR |
477 | .reset = tegra_plane_reset, |
478 | .atomic_duplicate_state = tegra_plane_atomic_duplicate_state, | |
479 | .atomic_destroy_state = tegra_plane_atomic_destroy_state, | |
4aa3df71 TR |
480 | }; |
481 | ||
482 | static int tegra_plane_prepare_fb(struct drm_plane *plane, | |
d136dfee | 483 | const struct drm_plane_state *new_state) |
4aa3df71 TR |
484 | { |
485 | return 0; | |
486 | } | |
487 | ||
488 | static void tegra_plane_cleanup_fb(struct drm_plane *plane, | |
d136dfee | 489 | const struct drm_plane_state *old_fb) |
4aa3df71 TR |
490 | { |
491 | } | |
492 | ||
47802b09 TR |
493 | static int tegra_plane_state_add(struct tegra_plane *plane, |
494 | struct drm_plane_state *state) | |
495 | { | |
496 | struct drm_crtc_state *crtc_state; | |
497 | struct tegra_dc_state *tegra; | |
498 | ||
499 | /* Propagate errors from allocation or locking failures. */ | |
500 | crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc); | |
501 | if (IS_ERR(crtc_state)) | |
502 | return PTR_ERR(crtc_state); | |
503 | ||
504 | tegra = to_dc_state(crtc_state); | |
505 | ||
506 | tegra->planes |= WIN_A_ACT_REQ << plane->index; | |
507 | ||
508 | return 0; | |
509 | } | |
510 | ||
4aa3df71 TR |
511 | static int tegra_plane_atomic_check(struct drm_plane *plane, |
512 | struct drm_plane_state *state) | |
513 | { | |
8f604f8c TR |
514 | struct tegra_plane_state *plane_state = to_tegra_plane_state(state); |
515 | struct tegra_bo_tiling *tiling = &plane_state->tiling; | |
47802b09 | 516 | struct tegra_plane *tegra = to_tegra_plane(plane); |
4aa3df71 | 517 | struct tegra_dc *dc = to_tegra_dc(state->crtc); |
4aa3df71 TR |
518 | int err; |
519 | ||
520 | /* no need for further checks if the plane is being disabled */ | |
521 | if (!state->crtc) | |
522 | return 0; | |
523 | ||
8f604f8c TR |
524 | err = tegra_dc_format(state->fb->pixel_format, &plane_state->format, |
525 | &plane_state->swap); | |
4aa3df71 TR |
526 | if (err < 0) |
527 | return err; | |
528 | ||
8f604f8c TR |
529 | err = tegra_fb_get_tiling(state->fb, tiling); |
530 | if (err < 0) | |
531 | return err; | |
532 | ||
533 | if (tiling->mode == TEGRA_BO_TILING_MODE_BLOCK && | |
4aa3df71 TR |
534 | !dc->soc->supports_block_linear) { |
535 | DRM_ERROR("hardware doesn't support block linear mode\n"); | |
536 | return -EINVAL; | |
537 | } | |
538 | ||
539 | /* | |
540 | * Tegra doesn't support different strides for U and V planes so we | |
541 | * error out if the user tries to display a framebuffer with such a | |
542 | * configuration. | |
543 | */ | |
544 | if (drm_format_num_planes(state->fb->pixel_format) > 2) { | |
545 | if (state->fb->pitches[2] != state->fb->pitches[1]) { | |
546 | DRM_ERROR("unsupported UV-plane configuration\n"); | |
547 | return -EINVAL; | |
548 | } | |
549 | } | |
550 | ||
47802b09 TR |
551 | err = tegra_plane_state_add(tegra, state); |
552 | if (err < 0) | |
553 | return err; | |
554 | ||
4aa3df71 TR |
555 | return 0; |
556 | } | |
557 | ||
558 | static void tegra_plane_atomic_update(struct drm_plane *plane, | |
559 | struct drm_plane_state *old_state) | |
560 | { | |
8f604f8c | 561 | struct tegra_plane_state *state = to_tegra_plane_state(plane->state); |
4aa3df71 TR |
562 | struct tegra_dc *dc = to_tegra_dc(plane->state->crtc); |
563 | struct drm_framebuffer *fb = plane->state->fb; | |
c7679306 | 564 | struct tegra_plane *p = to_tegra_plane(plane); |
c7679306 | 565 | struct tegra_dc_window window; |
4aa3df71 | 566 | unsigned int i; |
c7679306 | 567 | |
4aa3df71 TR |
568 | /* rien ne va plus */ |
569 | if (!plane->state->crtc || !plane->state->fb) | |
570 | return; | |
571 | ||
c7679306 | 572 | memset(&window, 0, sizeof(window)); |
4aa3df71 TR |
573 | window.src.x = plane->state->src_x >> 16; |
574 | window.src.y = plane->state->src_y >> 16; | |
575 | window.src.w = plane->state->src_w >> 16; | |
576 | window.src.h = plane->state->src_h >> 16; | |
577 | window.dst.x = plane->state->crtc_x; | |
578 | window.dst.y = plane->state->crtc_y; | |
579 | window.dst.w = plane->state->crtc_w; | |
580 | window.dst.h = plane->state->crtc_h; | |
c7679306 TR |
581 | window.bits_per_pixel = fb->bits_per_pixel; |
582 | window.bottom_up = tegra_fb_is_bottom_up(fb); | |
583 | ||
8f604f8c TR |
584 | /* copy from state */ |
585 | window.tiling = state->tiling; | |
586 | window.format = state->format; | |
587 | window.swap = state->swap; | |
c7679306 | 588 | |
4aa3df71 TR |
589 | for (i = 0; i < drm_format_num_planes(fb->pixel_format); i++) { |
590 | struct tegra_bo *bo = tegra_fb_get_plane(fb, i); | |
c7679306 | 591 | |
4aa3df71 TR |
592 | window.base[i] = bo->paddr + fb->offsets[i]; |
593 | window.stride[i] = fb->pitches[i]; | |
594 | } | |
10288eea | 595 | |
4aa3df71 | 596 | tegra_dc_setup_window(dc, p->index, &window); |
10288eea TR |
597 | } |
598 | ||
4aa3df71 TR |
599 | static void tegra_plane_atomic_disable(struct drm_plane *plane, |
600 | struct drm_plane_state *old_state) | |
c7679306 | 601 | { |
4aa3df71 TR |
602 | struct tegra_plane *p = to_tegra_plane(plane); |
603 | struct tegra_dc *dc; | |
604 | unsigned long flags; | |
605 | u32 value; | |
606 | ||
607 | /* rien ne va plus */ | |
608 | if (!old_state || !old_state->crtc) | |
609 | return; | |
610 | ||
611 | dc = to_tegra_dc(old_state->crtc); | |
612 | ||
613 | spin_lock_irqsave(&dc->lock, flags); | |
614 | ||
615 | value = WINDOW_A_SELECT << p->index; | |
616 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_WINDOW_HEADER); | |
617 | ||
618 | value = tegra_dc_readl(dc, DC_WIN_WIN_OPTIONS); | |
619 | value &= ~WIN_ENABLE; | |
620 | tegra_dc_writel(dc, value, DC_WIN_WIN_OPTIONS); | |
621 | ||
4aa3df71 | 622 | spin_unlock_irqrestore(&dc->lock, flags); |
c7679306 TR |
623 | } |
624 | ||
4aa3df71 TR |
625 | static const struct drm_plane_helper_funcs tegra_primary_plane_helper_funcs = { |
626 | .prepare_fb = tegra_plane_prepare_fb, | |
627 | .cleanup_fb = tegra_plane_cleanup_fb, | |
628 | .atomic_check = tegra_plane_atomic_check, | |
629 | .atomic_update = tegra_plane_atomic_update, | |
630 | .atomic_disable = tegra_plane_atomic_disable, | |
c7679306 TR |
631 | }; |
632 | ||
633 | static struct drm_plane *tegra_dc_primary_plane_create(struct drm_device *drm, | |
634 | struct tegra_dc *dc) | |
635 | { | |
518e6227 TR |
636 | /* |
637 | * Ideally this would use drm_crtc_mask(), but that would require the | |
638 | * CRTC to already be in the mode_config's list of CRTCs. However, it | |
639 | * will only be added to that list in the drm_crtc_init_with_planes() | |
640 | * (in tegra_dc_init()), which in turn requires registration of these | |
641 | * planes. So we have ourselves a nice little chicken and egg problem | |
642 | * here. | |
643 | * | |
644 | * We work around this by manually creating the mask from the number | |
645 | * of CRTCs that have been registered, and should therefore always be | |
646 | * the same as drm_crtc_index() after registration. | |
647 | */ | |
648 | unsigned long possible_crtcs = 1 << drm->mode_config.num_crtc; | |
c7679306 TR |
649 | struct tegra_plane *plane; |
650 | unsigned int num_formats; | |
651 | const u32 *formats; | |
652 | int err; | |
653 | ||
654 | plane = kzalloc(sizeof(*plane), GFP_KERNEL); | |
655 | if (!plane) | |
656 | return ERR_PTR(-ENOMEM); | |
657 | ||
658 | num_formats = ARRAY_SIZE(tegra_primary_plane_formats); | |
659 | formats = tegra_primary_plane_formats; | |
660 | ||
518e6227 | 661 | err = drm_universal_plane_init(drm, &plane->base, possible_crtcs, |
c7679306 | 662 | &tegra_primary_plane_funcs, formats, |
b0b3b795 VS |
663 | num_formats, DRM_PLANE_TYPE_PRIMARY, |
664 | NULL); | |
c7679306 TR |
665 | if (err < 0) { |
666 | kfree(plane); | |
667 | return ERR_PTR(err); | |
668 | } | |
669 | ||
4aa3df71 TR |
670 | drm_plane_helper_add(&plane->base, &tegra_primary_plane_helper_funcs); |
671 | ||
c7679306 TR |
672 | return &plane->base; |
673 | } | |
674 | ||
675 | static const u32 tegra_cursor_plane_formats[] = { | |
676 | DRM_FORMAT_RGBA8888, | |
677 | }; | |
678 | ||
4aa3df71 TR |
679 | static int tegra_cursor_atomic_check(struct drm_plane *plane, |
680 | struct drm_plane_state *state) | |
c7679306 | 681 | { |
47802b09 TR |
682 | struct tegra_plane *tegra = to_tegra_plane(plane); |
683 | int err; | |
684 | ||
4aa3df71 TR |
685 | /* no need for further checks if the plane is being disabled */ |
686 | if (!state->crtc) | |
687 | return 0; | |
c7679306 TR |
688 | |
689 | /* scaling not supported for cursor */ | |
4aa3df71 TR |
690 | if ((state->src_w >> 16 != state->crtc_w) || |
691 | (state->src_h >> 16 != state->crtc_h)) | |
c7679306 TR |
692 | return -EINVAL; |
693 | ||
694 | /* only square cursors supported */ | |
4aa3df71 TR |
695 | if (state->src_w != state->src_h) |
696 | return -EINVAL; | |
697 | ||
698 | if (state->crtc_w != 32 && state->crtc_w != 64 && | |
699 | state->crtc_w != 128 && state->crtc_w != 256) | |
c7679306 TR |
700 | return -EINVAL; |
701 | ||
47802b09 TR |
702 | err = tegra_plane_state_add(tegra, state); |
703 | if (err < 0) | |
704 | return err; | |
705 | ||
4aa3df71 TR |
706 | return 0; |
707 | } | |
708 | ||
709 | static void tegra_cursor_atomic_update(struct drm_plane *plane, | |
710 | struct drm_plane_state *old_state) | |
711 | { | |
712 | struct tegra_bo *bo = tegra_fb_get_plane(plane->state->fb, 0); | |
713 | struct tegra_dc *dc = to_tegra_dc(plane->state->crtc); | |
714 | struct drm_plane_state *state = plane->state; | |
715 | u32 value = CURSOR_CLIP_DISPLAY; | |
716 | ||
717 | /* rien ne va plus */ | |
718 | if (!plane->state->crtc || !plane->state->fb) | |
719 | return; | |
720 | ||
721 | switch (state->crtc_w) { | |
c7679306 TR |
722 | case 32: |
723 | value |= CURSOR_SIZE_32x32; | |
724 | break; | |
725 | ||
726 | case 64: | |
727 | value |= CURSOR_SIZE_64x64; | |
728 | break; | |
729 | ||
730 | case 128: | |
731 | value |= CURSOR_SIZE_128x128; | |
732 | break; | |
733 | ||
734 | case 256: | |
735 | value |= CURSOR_SIZE_256x256; | |
736 | break; | |
737 | ||
738 | default: | |
4aa3df71 TR |
739 | WARN(1, "cursor size %ux%u not supported\n", state->crtc_w, |
740 | state->crtc_h); | |
741 | return; | |
c7679306 TR |
742 | } |
743 | ||
744 | value |= (bo->paddr >> 10) & 0x3fffff; | |
745 | tegra_dc_writel(dc, value, DC_DISP_CURSOR_START_ADDR); | |
746 | ||
747 | #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT | |
748 | value = (bo->paddr >> 32) & 0x3; | |
749 | tegra_dc_writel(dc, value, DC_DISP_CURSOR_START_ADDR_HI); | |
750 | #endif | |
751 | ||
752 | /* enable cursor and set blend mode */ | |
753 | value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); | |
754 | value |= CURSOR_ENABLE; | |
755 | tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); | |
756 | ||
757 | value = tegra_dc_readl(dc, DC_DISP_BLEND_CURSOR_CONTROL); | |
758 | value &= ~CURSOR_DST_BLEND_MASK; | |
759 | value &= ~CURSOR_SRC_BLEND_MASK; | |
760 | value |= CURSOR_MODE_NORMAL; | |
761 | value |= CURSOR_DST_BLEND_NEG_K1_TIMES_SRC; | |
762 | value |= CURSOR_SRC_BLEND_K1_TIMES_SRC; | |
763 | value |= CURSOR_ALPHA; | |
764 | tegra_dc_writel(dc, value, DC_DISP_BLEND_CURSOR_CONTROL); | |
765 | ||
766 | /* position the cursor */ | |
4aa3df71 | 767 | value = (state->crtc_y & 0x3fff) << 16 | (state->crtc_x & 0x3fff); |
c7679306 | 768 | tegra_dc_writel(dc, value, DC_DISP_CURSOR_POSITION); |
c7679306 TR |
769 | } |
770 | ||
4aa3df71 TR |
771 | static void tegra_cursor_atomic_disable(struct drm_plane *plane, |
772 | struct drm_plane_state *old_state) | |
c7679306 | 773 | { |
4aa3df71 | 774 | struct tegra_dc *dc; |
c7679306 TR |
775 | u32 value; |
776 | ||
4aa3df71 TR |
777 | /* rien ne va plus */ |
778 | if (!old_state || !old_state->crtc) | |
779 | return; | |
780 | ||
781 | dc = to_tegra_dc(old_state->crtc); | |
c7679306 TR |
782 | |
783 | value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS); | |
784 | value &= ~CURSOR_ENABLE; | |
785 | tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS); | |
c7679306 TR |
786 | } |
787 | ||
788 | static const struct drm_plane_funcs tegra_cursor_plane_funcs = { | |
07866963 TR |
789 | .update_plane = drm_atomic_helper_update_plane, |
790 | .disable_plane = drm_atomic_helper_disable_plane, | |
c7679306 | 791 | .destroy = tegra_plane_destroy, |
8f604f8c TR |
792 | .reset = tegra_plane_reset, |
793 | .atomic_duplicate_state = tegra_plane_atomic_duplicate_state, | |
794 | .atomic_destroy_state = tegra_plane_atomic_destroy_state, | |
4aa3df71 TR |
795 | }; |
796 | ||
797 | static const struct drm_plane_helper_funcs tegra_cursor_plane_helper_funcs = { | |
798 | .prepare_fb = tegra_plane_prepare_fb, | |
799 | .cleanup_fb = tegra_plane_cleanup_fb, | |
800 | .atomic_check = tegra_cursor_atomic_check, | |
801 | .atomic_update = tegra_cursor_atomic_update, | |
802 | .atomic_disable = tegra_cursor_atomic_disable, | |
c7679306 TR |
803 | }; |
804 | ||
805 | static struct drm_plane *tegra_dc_cursor_plane_create(struct drm_device *drm, | |
806 | struct tegra_dc *dc) | |
807 | { | |
808 | struct tegra_plane *plane; | |
809 | unsigned int num_formats; | |
810 | const u32 *formats; | |
811 | int err; | |
812 | ||
813 | plane = kzalloc(sizeof(*plane), GFP_KERNEL); | |
814 | if (!plane) | |
815 | return ERR_PTR(-ENOMEM); | |
816 | ||
47802b09 | 817 | /* |
a1df3b24 TR |
818 | * This index is kind of fake. The cursor isn't a regular plane, but |
819 | * its update and activation request bits in DC_CMD_STATE_CONTROL do | |
820 | * use the same programming. Setting this fake index here allows the | |
821 | * code in tegra_add_plane_state() to do the right thing without the | |
822 | * need to special-casing the cursor plane. | |
47802b09 TR |
823 | */ |
824 | plane->index = 6; | |
825 | ||
c7679306 TR |
826 | num_formats = ARRAY_SIZE(tegra_cursor_plane_formats); |
827 | formats = tegra_cursor_plane_formats; | |
828 | ||
829 | err = drm_universal_plane_init(drm, &plane->base, 1 << dc->pipe, | |
830 | &tegra_cursor_plane_funcs, formats, | |
b0b3b795 VS |
831 | num_formats, DRM_PLANE_TYPE_CURSOR, |
832 | NULL); | |
c7679306 TR |
833 | if (err < 0) { |
834 | kfree(plane); | |
835 | return ERR_PTR(err); | |
836 | } | |
837 | ||
4aa3df71 | 838 | drm_plane_helper_add(&plane->base, &tegra_cursor_plane_helper_funcs); |
f34bc787 | 839 | |
4aa3df71 | 840 | return &plane->base; |
f34bc787 TR |
841 | } |
842 | ||
c7679306 | 843 | static void tegra_overlay_plane_destroy(struct drm_plane *plane) |
f34bc787 | 844 | { |
c7679306 | 845 | tegra_plane_destroy(plane); |
f34bc787 TR |
846 | } |
847 | ||
c7679306 | 848 | static const struct drm_plane_funcs tegra_overlay_plane_funcs = { |
07866963 TR |
849 | .update_plane = drm_atomic_helper_update_plane, |
850 | .disable_plane = drm_atomic_helper_disable_plane, | |
c7679306 | 851 | .destroy = tegra_overlay_plane_destroy, |
8f604f8c TR |
852 | .reset = tegra_plane_reset, |
853 | .atomic_duplicate_state = tegra_plane_atomic_duplicate_state, | |
854 | .atomic_destroy_state = tegra_plane_atomic_destroy_state, | |
f34bc787 TR |
855 | }; |
856 | ||
c7679306 | 857 | static const uint32_t tegra_overlay_plane_formats[] = { |
dbe4d9a7 | 858 | DRM_FORMAT_XBGR8888, |
f34bc787 | 859 | DRM_FORMAT_XRGB8888, |
dbe4d9a7 | 860 | DRM_FORMAT_RGB565, |
f34bc787 | 861 | DRM_FORMAT_UYVY, |
f925390e | 862 | DRM_FORMAT_YUYV, |
f34bc787 TR |
863 | DRM_FORMAT_YUV420, |
864 | DRM_FORMAT_YUV422, | |
865 | }; | |
866 | ||
4aa3df71 TR |
867 | static const struct drm_plane_helper_funcs tegra_overlay_plane_helper_funcs = { |
868 | .prepare_fb = tegra_plane_prepare_fb, | |
869 | .cleanup_fb = tegra_plane_cleanup_fb, | |
870 | .atomic_check = tegra_plane_atomic_check, | |
871 | .atomic_update = tegra_plane_atomic_update, | |
872 | .atomic_disable = tegra_plane_atomic_disable, | |
873 | }; | |
874 | ||
c7679306 TR |
875 | static struct drm_plane *tegra_dc_overlay_plane_create(struct drm_device *drm, |
876 | struct tegra_dc *dc, | |
877 | unsigned int index) | |
f34bc787 | 878 | { |
c7679306 TR |
879 | struct tegra_plane *plane; |
880 | unsigned int num_formats; | |
881 | const u32 *formats; | |
882 | int err; | |
f34bc787 | 883 | |
c7679306 TR |
884 | plane = kzalloc(sizeof(*plane), GFP_KERNEL); |
885 | if (!plane) | |
886 | return ERR_PTR(-ENOMEM); | |
f34bc787 | 887 | |
c7679306 | 888 | plane->index = index; |
f34bc787 | 889 | |
c7679306 TR |
890 | num_formats = ARRAY_SIZE(tegra_overlay_plane_formats); |
891 | formats = tegra_overlay_plane_formats; | |
f34bc787 | 892 | |
c7679306 TR |
893 | err = drm_universal_plane_init(drm, &plane->base, 1 << dc->pipe, |
894 | &tegra_overlay_plane_funcs, formats, | |
b0b3b795 VS |
895 | num_formats, DRM_PLANE_TYPE_OVERLAY, |
896 | NULL); | |
c7679306 TR |
897 | if (err < 0) { |
898 | kfree(plane); | |
899 | return ERR_PTR(err); | |
900 | } | |
901 | ||
4aa3df71 TR |
902 | drm_plane_helper_add(&plane->base, &tegra_overlay_plane_helper_funcs); |
903 | ||
c7679306 TR |
904 | return &plane->base; |
905 | } | |
906 | ||
907 | static int tegra_dc_add_planes(struct drm_device *drm, struct tegra_dc *dc) | |
908 | { | |
909 | struct drm_plane *plane; | |
910 | unsigned int i; | |
911 | ||
912 | for (i = 0; i < 2; i++) { | |
913 | plane = tegra_dc_overlay_plane_create(drm, dc, 1 + i); | |
914 | if (IS_ERR(plane)) | |
915 | return PTR_ERR(plane); | |
f34bc787 TR |
916 | } |
917 | ||
918 | return 0; | |
919 | } | |
920 | ||
42e9ce05 TR |
921 | u32 tegra_dc_get_vblank_counter(struct tegra_dc *dc) |
922 | { | |
923 | if (dc->syncpt) | |
924 | return host1x_syncpt_read(dc->syncpt); | |
925 | ||
926 | /* fallback to software emulated VBLANK counter */ | |
927 | return drm_crtc_vblank_count(&dc->base); | |
928 | } | |
929 | ||
6e5ff998 TR |
930 | void tegra_dc_enable_vblank(struct tegra_dc *dc) |
931 | { | |
932 | unsigned long value, flags; | |
933 | ||
934 | spin_lock_irqsave(&dc->lock, flags); | |
935 | ||
936 | value = tegra_dc_readl(dc, DC_CMD_INT_MASK); | |
937 | value |= VBLANK_INT; | |
938 | tegra_dc_writel(dc, value, DC_CMD_INT_MASK); | |
939 | ||
940 | spin_unlock_irqrestore(&dc->lock, flags); | |
941 | } | |
942 | ||
943 | void tegra_dc_disable_vblank(struct tegra_dc *dc) | |
944 | { | |
945 | unsigned long value, flags; | |
946 | ||
947 | spin_lock_irqsave(&dc->lock, flags); | |
948 | ||
949 | value = tegra_dc_readl(dc, DC_CMD_INT_MASK); | |
950 | value &= ~VBLANK_INT; | |
951 | tegra_dc_writel(dc, value, DC_CMD_INT_MASK); | |
952 | ||
953 | spin_unlock_irqrestore(&dc->lock, flags); | |
954 | } | |
955 | ||
3c03c46a TR |
956 | static void tegra_dc_finish_page_flip(struct tegra_dc *dc) |
957 | { | |
958 | struct drm_device *drm = dc->base.dev; | |
959 | struct drm_crtc *crtc = &dc->base; | |
3c03c46a | 960 | unsigned long flags, base; |
de2ba664 | 961 | struct tegra_bo *bo; |
3c03c46a | 962 | |
6b59cc1c TR |
963 | spin_lock_irqsave(&drm->event_lock, flags); |
964 | ||
965 | if (!dc->event) { | |
966 | spin_unlock_irqrestore(&drm->event_lock, flags); | |
3c03c46a | 967 | return; |
6b59cc1c | 968 | } |
3c03c46a | 969 | |
f4510a27 | 970 | bo = tegra_fb_get_plane(crtc->primary->fb, 0); |
3c03c46a | 971 | |
8643bc6d | 972 | spin_lock(&dc->lock); |
93396d0f | 973 | |
3c03c46a | 974 | /* check if new start address has been latched */ |
93396d0f | 975 | tegra_dc_writel(dc, WINDOW_A_SELECT, DC_CMD_DISPLAY_WINDOW_HEADER); |
3c03c46a TR |
976 | tegra_dc_writel(dc, READ_MUX, DC_CMD_STATE_ACCESS); |
977 | base = tegra_dc_readl(dc, DC_WINBUF_START_ADDR); | |
978 | tegra_dc_writel(dc, 0, DC_CMD_STATE_ACCESS); | |
979 | ||
8643bc6d | 980 | spin_unlock(&dc->lock); |
93396d0f | 981 | |
f4510a27 | 982 | if (base == bo->paddr + crtc->primary->fb->offsets[0]) { |
ed7dae58 TR |
983 | drm_crtc_send_vblank_event(crtc, dc->event); |
984 | drm_crtc_vblank_put(crtc); | |
3c03c46a | 985 | dc->event = NULL; |
3c03c46a | 986 | } |
6b59cc1c TR |
987 | |
988 | spin_unlock_irqrestore(&drm->event_lock, flags); | |
3c03c46a TR |
989 | } |
990 | ||
f002abc1 TR |
991 | static void tegra_dc_destroy(struct drm_crtc *crtc) |
992 | { | |
993 | drm_crtc_cleanup(crtc); | |
f002abc1 TR |
994 | } |
995 | ||
ca915b10 TR |
996 | static void tegra_crtc_reset(struct drm_crtc *crtc) |
997 | { | |
998 | struct tegra_dc_state *state; | |
999 | ||
3b59b7ac | 1000 | if (crtc->state) |
ec2dc6a0 | 1001 | __drm_atomic_helper_crtc_destroy_state(crtc->state); |
3b59b7ac | 1002 | |
ca915b10 TR |
1003 | kfree(crtc->state); |
1004 | crtc->state = NULL; | |
1005 | ||
1006 | state = kzalloc(sizeof(*state), GFP_KERNEL); | |
332bbe70 | 1007 | if (state) { |
ca915b10 | 1008 | crtc->state = &state->base; |
332bbe70 TR |
1009 | crtc->state->crtc = crtc; |
1010 | } | |
31930d4d TR |
1011 | |
1012 | drm_crtc_vblank_reset(crtc); | |
ca915b10 TR |
1013 | } |
1014 | ||
1015 | static struct drm_crtc_state * | |
1016 | tegra_crtc_atomic_duplicate_state(struct drm_crtc *crtc) | |
1017 | { | |
1018 | struct tegra_dc_state *state = to_dc_state(crtc->state); | |
1019 | struct tegra_dc_state *copy; | |
1020 | ||
3b59b7ac | 1021 | copy = kmalloc(sizeof(*copy), GFP_KERNEL); |
ca915b10 TR |
1022 | if (!copy) |
1023 | return NULL; | |
1024 | ||
3b59b7ac TR |
1025 | __drm_atomic_helper_crtc_duplicate_state(crtc, ©->base); |
1026 | copy->clk = state->clk; | |
1027 | copy->pclk = state->pclk; | |
1028 | copy->div = state->div; | |
1029 | copy->planes = state->planes; | |
ca915b10 TR |
1030 | |
1031 | return ©->base; | |
1032 | } | |
1033 | ||
1034 | static void tegra_crtc_atomic_destroy_state(struct drm_crtc *crtc, | |
1035 | struct drm_crtc_state *state) | |
1036 | { | |
ec2dc6a0 | 1037 | __drm_atomic_helper_crtc_destroy_state(state); |
ca915b10 TR |
1038 | kfree(state); |
1039 | } | |
1040 | ||
d8f4a9ed | 1041 | static const struct drm_crtc_funcs tegra_crtc_funcs = { |
1503ca47 | 1042 | .page_flip = drm_atomic_helper_page_flip, |
74f48791 | 1043 | .set_config = drm_atomic_helper_set_config, |
f002abc1 | 1044 | .destroy = tegra_dc_destroy, |
ca915b10 TR |
1045 | .reset = tegra_crtc_reset, |
1046 | .atomic_duplicate_state = tegra_crtc_atomic_duplicate_state, | |
1047 | .atomic_destroy_state = tegra_crtc_atomic_destroy_state, | |
d8f4a9ed TR |
1048 | }; |
1049 | ||
d8f4a9ed TR |
1050 | static int tegra_dc_set_timings(struct tegra_dc *dc, |
1051 | struct drm_display_mode *mode) | |
1052 | { | |
0444c0ff TR |
1053 | unsigned int h_ref_to_sync = 1; |
1054 | unsigned int v_ref_to_sync = 1; | |
d8f4a9ed TR |
1055 | unsigned long value; |
1056 | ||
1057 | tegra_dc_writel(dc, 0x0, DC_DISP_DISP_TIMING_OPTIONS); | |
1058 | ||
1059 | value = (v_ref_to_sync << 16) | h_ref_to_sync; | |
1060 | tegra_dc_writel(dc, value, DC_DISP_REF_TO_SYNC); | |
1061 | ||
1062 | value = ((mode->vsync_end - mode->vsync_start) << 16) | | |
1063 | ((mode->hsync_end - mode->hsync_start) << 0); | |
1064 | tegra_dc_writel(dc, value, DC_DISP_SYNC_WIDTH); | |
1065 | ||
d8f4a9ed TR |
1066 | value = ((mode->vtotal - mode->vsync_end) << 16) | |
1067 | ((mode->htotal - mode->hsync_end) << 0); | |
40495089 LS |
1068 | tegra_dc_writel(dc, value, DC_DISP_BACK_PORCH); |
1069 | ||
1070 | value = ((mode->vsync_start - mode->vdisplay) << 16) | | |
1071 | ((mode->hsync_start - mode->hdisplay) << 0); | |
d8f4a9ed TR |
1072 | tegra_dc_writel(dc, value, DC_DISP_FRONT_PORCH); |
1073 | ||
1074 | value = (mode->vdisplay << 16) | mode->hdisplay; | |
1075 | tegra_dc_writel(dc, value, DC_DISP_ACTIVE); | |
1076 | ||
1077 | return 0; | |
1078 | } | |
1079 | ||
9d910b60 TR |
1080 | /** |
1081 | * tegra_dc_state_setup_clock - check clock settings and store them in atomic | |
1082 | * state | |
1083 | * @dc: display controller | |
1084 | * @crtc_state: CRTC atomic state | |
1085 | * @clk: parent clock for display controller | |
1086 | * @pclk: pixel clock | |
1087 | * @div: shift clock divider | |
1088 | * | |
1089 | * Returns: | |
1090 | * 0 on success or a negative error-code on failure. | |
1091 | */ | |
ca915b10 TR |
1092 | int tegra_dc_state_setup_clock(struct tegra_dc *dc, |
1093 | struct drm_crtc_state *crtc_state, | |
1094 | struct clk *clk, unsigned long pclk, | |
1095 | unsigned int div) | |
1096 | { | |
1097 | struct tegra_dc_state *state = to_dc_state(crtc_state); | |
1098 | ||
d2982748 TR |
1099 | if (!clk_has_parent(dc->clk, clk)) |
1100 | return -EINVAL; | |
1101 | ||
ca915b10 TR |
1102 | state->clk = clk; |
1103 | state->pclk = pclk; | |
1104 | state->div = div; | |
1105 | ||
1106 | return 0; | |
1107 | } | |
1108 | ||
76d59ed0 TR |
1109 | static void tegra_dc_commit_state(struct tegra_dc *dc, |
1110 | struct tegra_dc_state *state) | |
1111 | { | |
1112 | u32 value; | |
1113 | int err; | |
1114 | ||
1115 | err = clk_set_parent(dc->clk, state->clk); | |
1116 | if (err < 0) | |
1117 | dev_err(dc->dev, "failed to set parent clock: %d\n", err); | |
1118 | ||
1119 | /* | |
1120 | * Outputs may not want to change the parent clock rate. This is only | |
1121 | * relevant to Tegra20 where only a single display PLL is available. | |
1122 | * Since that PLL would typically be used for HDMI, an internal LVDS | |
1123 | * panel would need to be driven by some other clock such as PLL_P | |
1124 | * which is shared with other peripherals. Changing the clock rate | |
1125 | * should therefore be avoided. | |
1126 | */ | |
1127 | if (state->pclk > 0) { | |
1128 | err = clk_set_rate(state->clk, state->pclk); | |
1129 | if (err < 0) | |
1130 | dev_err(dc->dev, | |
1131 | "failed to set clock rate to %lu Hz\n", | |
1132 | state->pclk); | |
1133 | } | |
1134 | ||
1135 | DRM_DEBUG_KMS("rate: %lu, div: %u\n", clk_get_rate(dc->clk), | |
1136 | state->div); | |
1137 | DRM_DEBUG_KMS("pclk: %lu\n", state->pclk); | |
1138 | ||
1139 | value = SHIFT_CLK_DIVIDER(state->div) | PIXEL_CLK_DIVIDER_PCD1; | |
1140 | tegra_dc_writel(dc, value, DC_DISP_DISP_CLOCK_CONTROL); | |
1141 | } | |
1142 | ||
003fc848 TR |
1143 | static void tegra_dc_stop(struct tegra_dc *dc) |
1144 | { | |
1145 | u32 value; | |
1146 | ||
1147 | /* stop the display controller */ | |
1148 | value = tegra_dc_readl(dc, DC_CMD_DISPLAY_COMMAND); | |
1149 | value &= ~DISP_CTRL_MODE_MASK; | |
1150 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_COMMAND); | |
1151 | ||
1152 | tegra_dc_commit(dc); | |
1153 | } | |
1154 | ||
1155 | static bool tegra_dc_idle(struct tegra_dc *dc) | |
1156 | { | |
1157 | u32 value; | |
1158 | ||
1159 | value = tegra_dc_readl_active(dc, DC_CMD_DISPLAY_COMMAND); | |
1160 | ||
1161 | return (value & DISP_CTRL_MODE_MASK) == 0; | |
1162 | } | |
1163 | ||
1164 | static int tegra_dc_wait_idle(struct tegra_dc *dc, unsigned long timeout) | |
1165 | { | |
1166 | timeout = jiffies + msecs_to_jiffies(timeout); | |
1167 | ||
1168 | while (time_before(jiffies, timeout)) { | |
1169 | if (tegra_dc_idle(dc)) | |
1170 | return 0; | |
1171 | ||
1172 | usleep_range(1000, 2000); | |
1173 | } | |
1174 | ||
1175 | dev_dbg(dc->dev, "timeout waiting for DC to become idle\n"); | |
1176 | return -ETIMEDOUT; | |
1177 | } | |
1178 | ||
1179 | static void tegra_crtc_disable(struct drm_crtc *crtc) | |
1180 | { | |
1181 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
1182 | u32 value; | |
1183 | ||
1184 | if (!tegra_dc_idle(dc)) { | |
1185 | tegra_dc_stop(dc); | |
1186 | ||
1187 | /* | |
1188 | * Ignore the return value, there isn't anything useful to do | |
1189 | * in case this fails. | |
1190 | */ | |
1191 | tegra_dc_wait_idle(dc, 100); | |
1192 | } | |
1193 | ||
1194 | /* | |
1195 | * This should really be part of the RGB encoder driver, but clearing | |
1196 | * these bits has the side-effect of stopping the display controller. | |
1197 | * When that happens no VBLANK interrupts will be raised. At the same | |
1198 | * time the encoder is disabled before the display controller, so the | |
1199 | * above code is always going to timeout waiting for the controller | |
1200 | * to go idle. | |
1201 | * | |
1202 | * Given the close coupling between the RGB encoder and the display | |
1203 | * controller doing it here is still kind of okay. None of the other | |
1204 | * encoder drivers require these bits to be cleared. | |
1205 | * | |
1206 | * XXX: Perhaps given that the display controller is switched off at | |
1207 | * this point anyway maybe clearing these bits isn't even useful for | |
1208 | * the RGB encoder? | |
1209 | */ | |
1210 | if (dc->rgb) { | |
1211 | value = tegra_dc_readl(dc, DC_CMD_DISPLAY_POWER_CONTROL); | |
1212 | value &= ~(PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE | | |
1213 | PW4_ENABLE | PM0_ENABLE | PM1_ENABLE); | |
1214 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL); | |
1215 | } | |
1216 | ||
1217 | tegra_dc_stats_reset(&dc->stats); | |
1218 | drm_crtc_vblank_off(crtc); | |
1219 | } | |
1220 | ||
1221 | static void tegra_crtc_enable(struct drm_crtc *crtc) | |
d8f4a9ed | 1222 | { |
4aa3df71 | 1223 | struct drm_display_mode *mode = &crtc->state->adjusted_mode; |
76d59ed0 | 1224 | struct tegra_dc_state *state = to_dc_state(crtc->state); |
d8f4a9ed | 1225 | struct tegra_dc *dc = to_tegra_dc(crtc); |
dbb3f2f7 | 1226 | u32 value; |
d8f4a9ed | 1227 | |
76d59ed0 TR |
1228 | tegra_dc_commit_state(dc, state); |
1229 | ||
d8f4a9ed TR |
1230 | /* program display mode */ |
1231 | tegra_dc_set_timings(dc, mode); | |
1232 | ||
8620fc62 TR |
1233 | /* interlacing isn't supported yet, so disable it */ |
1234 | if (dc->soc->supports_interlacing) { | |
1235 | value = tegra_dc_readl(dc, DC_DISP_INTERLACE_CONTROL); | |
1236 | value &= ~INTERLACE_ENABLE; | |
1237 | tegra_dc_writel(dc, value, DC_DISP_INTERLACE_CONTROL); | |
1238 | } | |
666cb873 TR |
1239 | |
1240 | value = tegra_dc_readl(dc, DC_CMD_DISPLAY_COMMAND); | |
1241 | value &= ~DISP_CTRL_MODE_MASK; | |
1242 | value |= DISP_CTRL_MODE_C_DISPLAY; | |
1243 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_COMMAND); | |
1244 | ||
1245 | value = tegra_dc_readl(dc, DC_CMD_DISPLAY_POWER_CONTROL); | |
1246 | value |= PW0_ENABLE | PW1_ENABLE | PW2_ENABLE | PW3_ENABLE | | |
1247 | PW4_ENABLE | PM0_ENABLE | PM1_ENABLE; | |
1248 | tegra_dc_writel(dc, value, DC_CMD_DISPLAY_POWER_CONTROL); | |
1249 | ||
1250 | tegra_dc_commit(dc); | |
d8f4a9ed | 1251 | |
8ff64c17 | 1252 | drm_crtc_vblank_on(crtc); |
d8f4a9ed TR |
1253 | } |
1254 | ||
4aa3df71 TR |
1255 | static int tegra_crtc_atomic_check(struct drm_crtc *crtc, |
1256 | struct drm_crtc_state *state) | |
1257 | { | |
1258 | return 0; | |
1259 | } | |
1260 | ||
613d2b27 ML |
1261 | static void tegra_crtc_atomic_begin(struct drm_crtc *crtc, |
1262 | struct drm_crtc_state *old_crtc_state) | |
4aa3df71 | 1263 | { |
1503ca47 TR |
1264 | struct tegra_dc *dc = to_tegra_dc(crtc); |
1265 | ||
1266 | if (crtc->state->event) { | |
1267 | crtc->state->event->pipe = drm_crtc_index(crtc); | |
1268 | ||
1269 | WARN_ON(drm_crtc_vblank_get(crtc) != 0); | |
1270 | ||
1271 | dc->event = crtc->state->event; | |
1272 | crtc->state->event = NULL; | |
1273 | } | |
4aa3df71 TR |
1274 | } |
1275 | ||
613d2b27 ML |
1276 | static void tegra_crtc_atomic_flush(struct drm_crtc *crtc, |
1277 | struct drm_crtc_state *old_crtc_state) | |
4aa3df71 | 1278 | { |
47802b09 TR |
1279 | struct tegra_dc_state *state = to_dc_state(crtc->state); |
1280 | struct tegra_dc *dc = to_tegra_dc(crtc); | |
1281 | ||
1282 | tegra_dc_writel(dc, state->planes << 8, DC_CMD_STATE_CONTROL); | |
1283 | tegra_dc_writel(dc, state->planes, DC_CMD_STATE_CONTROL); | |
4aa3df71 TR |
1284 | } |
1285 | ||
d8f4a9ed | 1286 | static const struct drm_crtc_helper_funcs tegra_crtc_helper_funcs = { |
f34bc787 | 1287 | .disable = tegra_crtc_disable, |
003fc848 | 1288 | .enable = tegra_crtc_enable, |
4aa3df71 TR |
1289 | .atomic_check = tegra_crtc_atomic_check, |
1290 | .atomic_begin = tegra_crtc_atomic_begin, | |
1291 | .atomic_flush = tegra_crtc_atomic_flush, | |
d8f4a9ed TR |
1292 | }; |
1293 | ||
6e5ff998 | 1294 | static irqreturn_t tegra_dc_irq(int irq, void *data) |
d8f4a9ed TR |
1295 | { |
1296 | struct tegra_dc *dc = data; | |
1297 | unsigned long status; | |
1298 | ||
1299 | status = tegra_dc_readl(dc, DC_CMD_INT_STATUS); | |
1300 | tegra_dc_writel(dc, status, DC_CMD_INT_STATUS); | |
1301 | ||
1302 | if (status & FRAME_END_INT) { | |
1303 | /* | |
1304 | dev_dbg(dc->dev, "%s(): frame end\n", __func__); | |
1305 | */ | |
791ddb1e | 1306 | dc->stats.frames++; |
d8f4a9ed TR |
1307 | } |
1308 | ||
1309 | if (status & VBLANK_INT) { | |
1310 | /* | |
1311 | dev_dbg(dc->dev, "%s(): vertical blank\n", __func__); | |
1312 | */ | |
ed7dae58 | 1313 | drm_crtc_handle_vblank(&dc->base); |
3c03c46a | 1314 | tegra_dc_finish_page_flip(dc); |
791ddb1e | 1315 | dc->stats.vblank++; |
d8f4a9ed TR |
1316 | } |
1317 | ||
1318 | if (status & (WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT)) { | |
1319 | /* | |
1320 | dev_dbg(dc->dev, "%s(): underflow\n", __func__); | |
1321 | */ | |
791ddb1e TR |
1322 | dc->stats.underflow++; |
1323 | } | |
1324 | ||
1325 | if (status & (WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT)) { | |
1326 | /* | |
1327 | dev_dbg(dc->dev, "%s(): overflow\n", __func__); | |
1328 | */ | |
1329 | dc->stats.overflow++; | |
d8f4a9ed TR |
1330 | } |
1331 | ||
1332 | return IRQ_HANDLED; | |
1333 | } | |
1334 | ||
1335 | static int tegra_dc_show_regs(struct seq_file *s, void *data) | |
1336 | { | |
1337 | struct drm_info_node *node = s->private; | |
1338 | struct tegra_dc *dc = node->info_ent->data; | |
003fc848 TR |
1339 | int err = 0; |
1340 | ||
1341 | drm_modeset_lock_crtc(&dc->base, NULL); | |
1342 | ||
1343 | if (!dc->base.state->active) { | |
1344 | err = -EBUSY; | |
1345 | goto unlock; | |
1346 | } | |
d8f4a9ed TR |
1347 | |
1348 | #define DUMP_REG(name) \ | |
03a60569 | 1349 | seq_printf(s, "%-40s %#05x %08x\n", #name, name, \ |
d8f4a9ed TR |
1350 | tegra_dc_readl(dc, name)) |
1351 | ||
1352 | DUMP_REG(DC_CMD_GENERAL_INCR_SYNCPT); | |
1353 | DUMP_REG(DC_CMD_GENERAL_INCR_SYNCPT_CNTRL); | |
1354 | DUMP_REG(DC_CMD_GENERAL_INCR_SYNCPT_ERROR); | |
1355 | DUMP_REG(DC_CMD_WIN_A_INCR_SYNCPT); | |
1356 | DUMP_REG(DC_CMD_WIN_A_INCR_SYNCPT_CNTRL); | |
1357 | DUMP_REG(DC_CMD_WIN_A_INCR_SYNCPT_ERROR); | |
1358 | DUMP_REG(DC_CMD_WIN_B_INCR_SYNCPT); | |
1359 | DUMP_REG(DC_CMD_WIN_B_INCR_SYNCPT_CNTRL); | |
1360 | DUMP_REG(DC_CMD_WIN_B_INCR_SYNCPT_ERROR); | |
1361 | DUMP_REG(DC_CMD_WIN_C_INCR_SYNCPT); | |
1362 | DUMP_REG(DC_CMD_WIN_C_INCR_SYNCPT_CNTRL); | |
1363 | DUMP_REG(DC_CMD_WIN_C_INCR_SYNCPT_ERROR); | |
1364 | DUMP_REG(DC_CMD_CONT_SYNCPT_VSYNC); | |
1365 | DUMP_REG(DC_CMD_DISPLAY_COMMAND_OPTION0); | |
1366 | DUMP_REG(DC_CMD_DISPLAY_COMMAND); | |
1367 | DUMP_REG(DC_CMD_SIGNAL_RAISE); | |
1368 | DUMP_REG(DC_CMD_DISPLAY_POWER_CONTROL); | |
1369 | DUMP_REG(DC_CMD_INT_STATUS); | |
1370 | DUMP_REG(DC_CMD_INT_MASK); | |
1371 | DUMP_REG(DC_CMD_INT_ENABLE); | |
1372 | DUMP_REG(DC_CMD_INT_TYPE); | |
1373 | DUMP_REG(DC_CMD_INT_POLARITY); | |
1374 | DUMP_REG(DC_CMD_SIGNAL_RAISE1); | |
1375 | DUMP_REG(DC_CMD_SIGNAL_RAISE2); | |
1376 | DUMP_REG(DC_CMD_SIGNAL_RAISE3); | |
1377 | DUMP_REG(DC_CMD_STATE_ACCESS); | |
1378 | DUMP_REG(DC_CMD_STATE_CONTROL); | |
1379 | DUMP_REG(DC_CMD_DISPLAY_WINDOW_HEADER); | |
1380 | DUMP_REG(DC_CMD_REG_ACT_CONTROL); | |
1381 | DUMP_REG(DC_COM_CRC_CONTROL); | |
1382 | DUMP_REG(DC_COM_CRC_CHECKSUM); | |
1383 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(0)); | |
1384 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(1)); | |
1385 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(2)); | |
1386 | DUMP_REG(DC_COM_PIN_OUTPUT_ENABLE(3)); | |
1387 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(0)); | |
1388 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(1)); | |
1389 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(2)); | |
1390 | DUMP_REG(DC_COM_PIN_OUTPUT_POLARITY(3)); | |
1391 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(0)); | |
1392 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(1)); | |
1393 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(2)); | |
1394 | DUMP_REG(DC_COM_PIN_OUTPUT_DATA(3)); | |
1395 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(0)); | |
1396 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(1)); | |
1397 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(2)); | |
1398 | DUMP_REG(DC_COM_PIN_INPUT_ENABLE(3)); | |
1399 | DUMP_REG(DC_COM_PIN_INPUT_DATA(0)); | |
1400 | DUMP_REG(DC_COM_PIN_INPUT_DATA(1)); | |
1401 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(0)); | |
1402 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(1)); | |
1403 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(2)); | |
1404 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(3)); | |
1405 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(4)); | |
1406 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(5)); | |
1407 | DUMP_REG(DC_COM_PIN_OUTPUT_SELECT(6)); | |
1408 | DUMP_REG(DC_COM_PIN_MISC_CONTROL); | |
1409 | DUMP_REG(DC_COM_PIN_PM0_CONTROL); | |
1410 | DUMP_REG(DC_COM_PIN_PM0_DUTY_CYCLE); | |
1411 | DUMP_REG(DC_COM_PIN_PM1_CONTROL); | |
1412 | DUMP_REG(DC_COM_PIN_PM1_DUTY_CYCLE); | |
1413 | DUMP_REG(DC_COM_SPI_CONTROL); | |
1414 | DUMP_REG(DC_COM_SPI_START_BYTE); | |
1415 | DUMP_REG(DC_COM_HSPI_WRITE_DATA_AB); | |
1416 | DUMP_REG(DC_COM_HSPI_WRITE_DATA_CD); | |
1417 | DUMP_REG(DC_COM_HSPI_CS_DC); | |
1418 | DUMP_REG(DC_COM_SCRATCH_REGISTER_A); | |
1419 | DUMP_REG(DC_COM_SCRATCH_REGISTER_B); | |
1420 | DUMP_REG(DC_COM_GPIO_CTRL); | |
1421 | DUMP_REG(DC_COM_GPIO_DEBOUNCE_COUNTER); | |
1422 | DUMP_REG(DC_COM_CRC_CHECKSUM_LATCHED); | |
1423 | DUMP_REG(DC_DISP_DISP_SIGNAL_OPTIONS0); | |
1424 | DUMP_REG(DC_DISP_DISP_SIGNAL_OPTIONS1); | |
1425 | DUMP_REG(DC_DISP_DISP_WIN_OPTIONS); | |
1426 | DUMP_REG(DC_DISP_DISP_MEM_HIGH_PRIORITY); | |
1427 | DUMP_REG(DC_DISP_DISP_MEM_HIGH_PRIORITY_TIMER); | |
1428 | DUMP_REG(DC_DISP_DISP_TIMING_OPTIONS); | |
1429 | DUMP_REG(DC_DISP_REF_TO_SYNC); | |
1430 | DUMP_REG(DC_DISP_SYNC_WIDTH); | |
1431 | DUMP_REG(DC_DISP_BACK_PORCH); | |
1432 | DUMP_REG(DC_DISP_ACTIVE); | |
1433 | DUMP_REG(DC_DISP_FRONT_PORCH); | |
1434 | DUMP_REG(DC_DISP_H_PULSE0_CONTROL); | |
1435 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_A); | |
1436 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_B); | |
1437 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_C); | |
1438 | DUMP_REG(DC_DISP_H_PULSE0_POSITION_D); | |
1439 | DUMP_REG(DC_DISP_H_PULSE1_CONTROL); | |
1440 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_A); | |
1441 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_B); | |
1442 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_C); | |
1443 | DUMP_REG(DC_DISP_H_PULSE1_POSITION_D); | |
1444 | DUMP_REG(DC_DISP_H_PULSE2_CONTROL); | |
1445 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_A); | |
1446 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_B); | |
1447 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_C); | |
1448 | DUMP_REG(DC_DISP_H_PULSE2_POSITION_D); | |
1449 | DUMP_REG(DC_DISP_V_PULSE0_CONTROL); | |
1450 | DUMP_REG(DC_DISP_V_PULSE0_POSITION_A); | |
1451 | DUMP_REG(DC_DISP_V_PULSE0_POSITION_B); | |
1452 | DUMP_REG(DC_DISP_V_PULSE0_POSITION_C); | |
1453 | DUMP_REG(DC_DISP_V_PULSE1_CONTROL); | |
1454 | DUMP_REG(DC_DISP_V_PULSE1_POSITION_A); | |
1455 | DUMP_REG(DC_DISP_V_PULSE1_POSITION_B); | |
1456 | DUMP_REG(DC_DISP_V_PULSE1_POSITION_C); | |
1457 | DUMP_REG(DC_DISP_V_PULSE2_CONTROL); | |
1458 | DUMP_REG(DC_DISP_V_PULSE2_POSITION_A); | |
1459 | DUMP_REG(DC_DISP_V_PULSE3_CONTROL); | |
1460 | DUMP_REG(DC_DISP_V_PULSE3_POSITION_A); | |
1461 | DUMP_REG(DC_DISP_M0_CONTROL); | |
1462 | DUMP_REG(DC_DISP_M1_CONTROL); | |
1463 | DUMP_REG(DC_DISP_DI_CONTROL); | |
1464 | DUMP_REG(DC_DISP_PP_CONTROL); | |
1465 | DUMP_REG(DC_DISP_PP_SELECT_A); | |
1466 | DUMP_REG(DC_DISP_PP_SELECT_B); | |
1467 | DUMP_REG(DC_DISP_PP_SELECT_C); | |
1468 | DUMP_REG(DC_DISP_PP_SELECT_D); | |
1469 | DUMP_REG(DC_DISP_DISP_CLOCK_CONTROL); | |
1470 | DUMP_REG(DC_DISP_DISP_INTERFACE_CONTROL); | |
1471 | DUMP_REG(DC_DISP_DISP_COLOR_CONTROL); | |
1472 | DUMP_REG(DC_DISP_SHIFT_CLOCK_OPTIONS); | |
1473 | DUMP_REG(DC_DISP_DATA_ENABLE_OPTIONS); | |
1474 | DUMP_REG(DC_DISP_SERIAL_INTERFACE_OPTIONS); | |
1475 | DUMP_REG(DC_DISP_LCD_SPI_OPTIONS); | |
1476 | DUMP_REG(DC_DISP_BORDER_COLOR); | |
1477 | DUMP_REG(DC_DISP_COLOR_KEY0_LOWER); | |
1478 | DUMP_REG(DC_DISP_COLOR_KEY0_UPPER); | |
1479 | DUMP_REG(DC_DISP_COLOR_KEY1_LOWER); | |
1480 | DUMP_REG(DC_DISP_COLOR_KEY1_UPPER); | |
1481 | DUMP_REG(DC_DISP_CURSOR_FOREGROUND); | |
1482 | DUMP_REG(DC_DISP_CURSOR_BACKGROUND); | |
1483 | DUMP_REG(DC_DISP_CURSOR_START_ADDR); | |
1484 | DUMP_REG(DC_DISP_CURSOR_START_ADDR_NS); | |
1485 | DUMP_REG(DC_DISP_CURSOR_POSITION); | |
1486 | DUMP_REG(DC_DISP_CURSOR_POSITION_NS); | |
1487 | DUMP_REG(DC_DISP_INIT_SEQ_CONTROL); | |
1488 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_A); | |
1489 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_B); | |
1490 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_C); | |
1491 | DUMP_REG(DC_DISP_SPI_INIT_SEQ_DATA_D); | |
1492 | DUMP_REG(DC_DISP_DC_MCCIF_FIFOCTRL); | |
1493 | DUMP_REG(DC_DISP_MCCIF_DISPLAY0A_HYST); | |
1494 | DUMP_REG(DC_DISP_MCCIF_DISPLAY0B_HYST); | |
1495 | DUMP_REG(DC_DISP_MCCIF_DISPLAY1A_HYST); | |
1496 | DUMP_REG(DC_DISP_MCCIF_DISPLAY1B_HYST); | |
1497 | DUMP_REG(DC_DISP_DAC_CRT_CTRL); | |
1498 | DUMP_REG(DC_DISP_DISP_MISC_CONTROL); | |
1499 | DUMP_REG(DC_DISP_SD_CONTROL); | |
1500 | DUMP_REG(DC_DISP_SD_CSC_COEFF); | |
1501 | DUMP_REG(DC_DISP_SD_LUT(0)); | |
1502 | DUMP_REG(DC_DISP_SD_LUT(1)); | |
1503 | DUMP_REG(DC_DISP_SD_LUT(2)); | |
1504 | DUMP_REG(DC_DISP_SD_LUT(3)); | |
1505 | DUMP_REG(DC_DISP_SD_LUT(4)); | |
1506 | DUMP_REG(DC_DISP_SD_LUT(5)); | |
1507 | DUMP_REG(DC_DISP_SD_LUT(6)); | |
1508 | DUMP_REG(DC_DISP_SD_LUT(7)); | |
1509 | DUMP_REG(DC_DISP_SD_LUT(8)); | |
1510 | DUMP_REG(DC_DISP_SD_FLICKER_CONTROL); | |
1511 | DUMP_REG(DC_DISP_DC_PIXEL_COUNT); | |
1512 | DUMP_REG(DC_DISP_SD_HISTOGRAM(0)); | |
1513 | DUMP_REG(DC_DISP_SD_HISTOGRAM(1)); | |
1514 | DUMP_REG(DC_DISP_SD_HISTOGRAM(2)); | |
1515 | DUMP_REG(DC_DISP_SD_HISTOGRAM(3)); | |
1516 | DUMP_REG(DC_DISP_SD_HISTOGRAM(4)); | |
1517 | DUMP_REG(DC_DISP_SD_HISTOGRAM(5)); | |
1518 | DUMP_REG(DC_DISP_SD_HISTOGRAM(6)); | |
1519 | DUMP_REG(DC_DISP_SD_HISTOGRAM(7)); | |
1520 | DUMP_REG(DC_DISP_SD_BL_TF(0)); | |
1521 | DUMP_REG(DC_DISP_SD_BL_TF(1)); | |
1522 | DUMP_REG(DC_DISP_SD_BL_TF(2)); | |
1523 | DUMP_REG(DC_DISP_SD_BL_TF(3)); | |
1524 | DUMP_REG(DC_DISP_SD_BL_CONTROL); | |
1525 | DUMP_REG(DC_DISP_SD_HW_K_VALUES); | |
1526 | DUMP_REG(DC_DISP_SD_MAN_K_VALUES); | |
e687651b TR |
1527 | DUMP_REG(DC_DISP_CURSOR_START_ADDR_HI); |
1528 | DUMP_REG(DC_DISP_BLEND_CURSOR_CONTROL); | |
d8f4a9ed TR |
1529 | DUMP_REG(DC_WIN_WIN_OPTIONS); |
1530 | DUMP_REG(DC_WIN_BYTE_SWAP); | |
1531 | DUMP_REG(DC_WIN_BUFFER_CONTROL); | |
1532 | DUMP_REG(DC_WIN_COLOR_DEPTH); | |
1533 | DUMP_REG(DC_WIN_POSITION); | |
1534 | DUMP_REG(DC_WIN_SIZE); | |
1535 | DUMP_REG(DC_WIN_PRESCALED_SIZE); | |
1536 | DUMP_REG(DC_WIN_H_INITIAL_DDA); | |
1537 | DUMP_REG(DC_WIN_V_INITIAL_DDA); | |
1538 | DUMP_REG(DC_WIN_DDA_INC); | |
1539 | DUMP_REG(DC_WIN_LINE_STRIDE); | |
1540 | DUMP_REG(DC_WIN_BUF_STRIDE); | |
1541 | DUMP_REG(DC_WIN_UV_BUF_STRIDE); | |
1542 | DUMP_REG(DC_WIN_BUFFER_ADDR_MODE); | |
1543 | DUMP_REG(DC_WIN_DV_CONTROL); | |
1544 | DUMP_REG(DC_WIN_BLEND_NOKEY); | |
1545 | DUMP_REG(DC_WIN_BLEND_1WIN); | |
1546 | DUMP_REG(DC_WIN_BLEND_2WIN_X); | |
1547 | DUMP_REG(DC_WIN_BLEND_2WIN_Y); | |
f34bc787 | 1548 | DUMP_REG(DC_WIN_BLEND_3WIN_XY); |
d8f4a9ed TR |
1549 | DUMP_REG(DC_WIN_HP_FETCH_CONTROL); |
1550 | DUMP_REG(DC_WINBUF_START_ADDR); | |
1551 | DUMP_REG(DC_WINBUF_START_ADDR_NS); | |
1552 | DUMP_REG(DC_WINBUF_START_ADDR_U); | |
1553 | DUMP_REG(DC_WINBUF_START_ADDR_U_NS); | |
1554 | DUMP_REG(DC_WINBUF_START_ADDR_V); | |
1555 | DUMP_REG(DC_WINBUF_START_ADDR_V_NS); | |
1556 | DUMP_REG(DC_WINBUF_ADDR_H_OFFSET); | |
1557 | DUMP_REG(DC_WINBUF_ADDR_H_OFFSET_NS); | |
1558 | DUMP_REG(DC_WINBUF_ADDR_V_OFFSET); | |
1559 | DUMP_REG(DC_WINBUF_ADDR_V_OFFSET_NS); | |
1560 | DUMP_REG(DC_WINBUF_UFLOW_STATUS); | |
1561 | DUMP_REG(DC_WINBUF_AD_UFLOW_STATUS); | |
1562 | DUMP_REG(DC_WINBUF_BD_UFLOW_STATUS); | |
1563 | DUMP_REG(DC_WINBUF_CD_UFLOW_STATUS); | |
1564 | ||
1565 | #undef DUMP_REG | |
1566 | ||
003fc848 TR |
1567 | unlock: |
1568 | drm_modeset_unlock_crtc(&dc->base); | |
1569 | return err; | |
d8f4a9ed TR |
1570 | } |
1571 | ||
6ca1f62f TR |
1572 | static int tegra_dc_show_crc(struct seq_file *s, void *data) |
1573 | { | |
1574 | struct drm_info_node *node = s->private; | |
1575 | struct tegra_dc *dc = node->info_ent->data; | |
003fc848 | 1576 | int err = 0; |
6ca1f62f TR |
1577 | u32 value; |
1578 | ||
003fc848 TR |
1579 | drm_modeset_lock_crtc(&dc->base, NULL); |
1580 | ||
1581 | if (!dc->base.state->active) { | |
1582 | err = -EBUSY; | |
1583 | goto unlock; | |
1584 | } | |
1585 | ||
6ca1f62f TR |
1586 | value = DC_COM_CRC_CONTROL_ACTIVE_DATA | DC_COM_CRC_CONTROL_ENABLE; |
1587 | tegra_dc_writel(dc, value, DC_COM_CRC_CONTROL); | |
1588 | tegra_dc_commit(dc); | |
1589 | ||
1590 | drm_crtc_wait_one_vblank(&dc->base); | |
1591 | drm_crtc_wait_one_vblank(&dc->base); | |
1592 | ||
1593 | value = tegra_dc_readl(dc, DC_COM_CRC_CHECKSUM); | |
1594 | seq_printf(s, "%08x\n", value); | |
1595 | ||
1596 | tegra_dc_writel(dc, 0, DC_COM_CRC_CONTROL); | |
1597 | ||
003fc848 TR |
1598 | unlock: |
1599 | drm_modeset_unlock_crtc(&dc->base); | |
1600 | return err; | |
6ca1f62f TR |
1601 | } |
1602 | ||
791ddb1e TR |
1603 | static int tegra_dc_show_stats(struct seq_file *s, void *data) |
1604 | { | |
1605 | struct drm_info_node *node = s->private; | |
1606 | struct tegra_dc *dc = node->info_ent->data; | |
1607 | ||
1608 | seq_printf(s, "frames: %lu\n", dc->stats.frames); | |
1609 | seq_printf(s, "vblank: %lu\n", dc->stats.vblank); | |
1610 | seq_printf(s, "underflow: %lu\n", dc->stats.underflow); | |
1611 | seq_printf(s, "overflow: %lu\n", dc->stats.overflow); | |
1612 | ||
d8f4a9ed TR |
1613 | return 0; |
1614 | } | |
1615 | ||
1616 | static struct drm_info_list debugfs_files[] = { | |
1617 | { "regs", tegra_dc_show_regs, 0, NULL }, | |
6ca1f62f | 1618 | { "crc", tegra_dc_show_crc, 0, NULL }, |
791ddb1e | 1619 | { "stats", tegra_dc_show_stats, 0, NULL }, |
d8f4a9ed TR |
1620 | }; |
1621 | ||
1622 | static int tegra_dc_debugfs_init(struct tegra_dc *dc, struct drm_minor *minor) | |
1623 | { | |
1624 | unsigned int i; | |
1625 | char *name; | |
1626 | int err; | |
1627 | ||
1628 | name = kasprintf(GFP_KERNEL, "dc.%d", dc->pipe); | |
1629 | dc->debugfs = debugfs_create_dir(name, minor->debugfs_root); | |
1630 | kfree(name); | |
1631 | ||
1632 | if (!dc->debugfs) | |
1633 | return -ENOMEM; | |
1634 | ||
1635 | dc->debugfs_files = kmemdup(debugfs_files, sizeof(debugfs_files), | |
1636 | GFP_KERNEL); | |
1637 | if (!dc->debugfs_files) { | |
1638 | err = -ENOMEM; | |
1639 | goto remove; | |
1640 | } | |
1641 | ||
1642 | for (i = 0; i < ARRAY_SIZE(debugfs_files); i++) | |
1643 | dc->debugfs_files[i].data = dc; | |
1644 | ||
1645 | err = drm_debugfs_create_files(dc->debugfs_files, | |
1646 | ARRAY_SIZE(debugfs_files), | |
1647 | dc->debugfs, minor); | |
1648 | if (err < 0) | |
1649 | goto free; | |
1650 | ||
1651 | dc->minor = minor; | |
1652 | ||
1653 | return 0; | |
1654 | ||
1655 | free: | |
1656 | kfree(dc->debugfs_files); | |
1657 | dc->debugfs_files = NULL; | |
1658 | remove: | |
1659 | debugfs_remove(dc->debugfs); | |
1660 | dc->debugfs = NULL; | |
1661 | ||
1662 | return err; | |
1663 | } | |
1664 | ||
1665 | static int tegra_dc_debugfs_exit(struct tegra_dc *dc) | |
1666 | { | |
1667 | drm_debugfs_remove_files(dc->debugfs_files, ARRAY_SIZE(debugfs_files), | |
1668 | dc->minor); | |
1669 | dc->minor = NULL; | |
1670 | ||
1671 | kfree(dc->debugfs_files); | |
1672 | dc->debugfs_files = NULL; | |
1673 | ||
1674 | debugfs_remove(dc->debugfs); | |
1675 | dc->debugfs = NULL; | |
1676 | ||
1677 | return 0; | |
1678 | } | |
1679 | ||
53fa7f72 | 1680 | static int tegra_dc_init(struct host1x_client *client) |
d8f4a9ed | 1681 | { |
9910f5c4 | 1682 | struct drm_device *drm = dev_get_drvdata(client->parent); |
2bcdcbfa | 1683 | unsigned long flags = HOST1X_SYNCPT_CLIENT_MANAGED; |
776dc384 | 1684 | struct tegra_dc *dc = host1x_client_to_dc(client); |
d1f3e1e0 | 1685 | struct tegra_drm *tegra = drm->dev_private; |
c7679306 TR |
1686 | struct drm_plane *primary = NULL; |
1687 | struct drm_plane *cursor = NULL; | |
07d05cbf | 1688 | u32 value; |
d8f4a9ed TR |
1689 | int err; |
1690 | ||
2bcdcbfa TR |
1691 | dc->syncpt = host1x_syncpt_request(dc->dev, flags); |
1692 | if (!dc->syncpt) | |
1693 | dev_warn(dc->dev, "failed to allocate syncpoint\n"); | |
1694 | ||
df06b759 TR |
1695 | if (tegra->domain) { |
1696 | err = iommu_attach_device(tegra->domain, dc->dev); | |
1697 | if (err < 0) { | |
1698 | dev_err(dc->dev, "failed to attach to domain: %d\n", | |
1699 | err); | |
1700 | return err; | |
1701 | } | |
1702 | ||
1703 | dc->domain = tegra->domain; | |
1704 | } | |
1705 | ||
c7679306 TR |
1706 | primary = tegra_dc_primary_plane_create(drm, dc); |
1707 | if (IS_ERR(primary)) { | |
1708 | err = PTR_ERR(primary); | |
1709 | goto cleanup; | |
1710 | } | |
1711 | ||
1712 | if (dc->soc->supports_cursor) { | |
1713 | cursor = tegra_dc_cursor_plane_create(drm, dc); | |
1714 | if (IS_ERR(cursor)) { | |
1715 | err = PTR_ERR(cursor); | |
1716 | goto cleanup; | |
1717 | } | |
1718 | } | |
1719 | ||
1720 | err = drm_crtc_init_with_planes(drm, &dc->base, primary, cursor, | |
f9882876 | 1721 | &tegra_crtc_funcs, NULL); |
c7679306 TR |
1722 | if (err < 0) |
1723 | goto cleanup; | |
1724 | ||
d8f4a9ed TR |
1725 | drm_crtc_helper_add(&dc->base, &tegra_crtc_helper_funcs); |
1726 | ||
d1f3e1e0 TR |
1727 | /* |
1728 | * Keep track of the minimum pitch alignment across all display | |
1729 | * controllers. | |
1730 | */ | |
1731 | if (dc->soc->pitch_align > tegra->pitch_align) | |
1732 | tegra->pitch_align = dc->soc->pitch_align; | |
1733 | ||
9910f5c4 | 1734 | err = tegra_dc_rgb_init(drm, dc); |
d8f4a9ed TR |
1735 | if (err < 0 && err != -ENODEV) { |
1736 | dev_err(dc->dev, "failed to initialize RGB output: %d\n", err); | |
c7679306 | 1737 | goto cleanup; |
d8f4a9ed TR |
1738 | } |
1739 | ||
9910f5c4 | 1740 | err = tegra_dc_add_planes(drm, dc); |
f34bc787 | 1741 | if (err < 0) |
c7679306 | 1742 | goto cleanup; |
f34bc787 | 1743 | |
d8f4a9ed | 1744 | if (IS_ENABLED(CONFIG_DEBUG_FS)) { |
9910f5c4 | 1745 | err = tegra_dc_debugfs_init(dc, drm->primary); |
d8f4a9ed TR |
1746 | if (err < 0) |
1747 | dev_err(dc->dev, "debugfs setup failed: %d\n", err); | |
1748 | } | |
1749 | ||
6e5ff998 | 1750 | err = devm_request_irq(dc->dev, dc->irq, tegra_dc_irq, 0, |
d8f4a9ed TR |
1751 | dev_name(dc->dev), dc); |
1752 | if (err < 0) { | |
1753 | dev_err(dc->dev, "failed to request IRQ#%u: %d\n", dc->irq, | |
1754 | err); | |
c7679306 | 1755 | goto cleanup; |
d8f4a9ed TR |
1756 | } |
1757 | ||
07d05cbf | 1758 | /* initialize display controller */ |
42e9ce05 TR |
1759 | if (dc->syncpt) { |
1760 | u32 syncpt = host1x_syncpt_id(dc->syncpt); | |
07d05cbf | 1761 | |
42e9ce05 TR |
1762 | value = SYNCPT_CNTRL_NO_STALL; |
1763 | tegra_dc_writel(dc, value, DC_CMD_GENERAL_INCR_SYNCPT_CNTRL); | |
1764 | ||
1765 | value = SYNCPT_VSYNC_ENABLE | syncpt; | |
1766 | tegra_dc_writel(dc, value, DC_CMD_CONT_SYNCPT_VSYNC); | |
1767 | } | |
07d05cbf | 1768 | |
791ddb1e TR |
1769 | value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT | |
1770 | WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT; | |
07d05cbf TR |
1771 | tegra_dc_writel(dc, value, DC_CMD_INT_TYPE); |
1772 | ||
1773 | value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT | | |
1774 | WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT; | |
1775 | tegra_dc_writel(dc, value, DC_CMD_INT_POLARITY); | |
1776 | ||
1777 | /* initialize timer */ | |
1778 | value = CURSOR_THRESHOLD(0) | WINDOW_A_THRESHOLD(0x20) | | |
1779 | WINDOW_B_THRESHOLD(0x20) | WINDOW_C_THRESHOLD(0x20); | |
1780 | tegra_dc_writel(dc, value, DC_DISP_DISP_MEM_HIGH_PRIORITY); | |
1781 | ||
1782 | value = CURSOR_THRESHOLD(0) | WINDOW_A_THRESHOLD(1) | | |
1783 | WINDOW_B_THRESHOLD(1) | WINDOW_C_THRESHOLD(1); | |
1784 | tegra_dc_writel(dc, value, DC_DISP_DISP_MEM_HIGH_PRIORITY_TIMER); | |
1785 | ||
791ddb1e TR |
1786 | value = VBLANK_INT | WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT | |
1787 | WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT; | |
07d05cbf TR |
1788 | tegra_dc_writel(dc, value, DC_CMD_INT_ENABLE); |
1789 | ||
791ddb1e TR |
1790 | value = WIN_A_UF_INT | WIN_B_UF_INT | WIN_C_UF_INT | |
1791 | WIN_A_OF_INT | WIN_B_OF_INT | WIN_C_OF_INT; | |
07d05cbf TR |
1792 | tegra_dc_writel(dc, value, DC_CMD_INT_MASK); |
1793 | ||
1794 | if (dc->soc->supports_border_color) | |
1795 | tegra_dc_writel(dc, 0, DC_DISP_BORDER_COLOR); | |
1796 | ||
791ddb1e TR |
1797 | tegra_dc_stats_reset(&dc->stats); |
1798 | ||
d8f4a9ed | 1799 | return 0; |
c7679306 TR |
1800 | |
1801 | cleanup: | |
1802 | if (cursor) | |
1803 | drm_plane_cleanup(cursor); | |
1804 | ||
1805 | if (primary) | |
1806 | drm_plane_cleanup(primary); | |
1807 | ||
1808 | if (tegra->domain) { | |
1809 | iommu_detach_device(tegra->domain, dc->dev); | |
1810 | dc->domain = NULL; | |
1811 | } | |
1812 | ||
1813 | return err; | |
d8f4a9ed TR |
1814 | } |
1815 | ||
53fa7f72 | 1816 | static int tegra_dc_exit(struct host1x_client *client) |
d8f4a9ed | 1817 | { |
776dc384 | 1818 | struct tegra_dc *dc = host1x_client_to_dc(client); |
d8f4a9ed TR |
1819 | int err; |
1820 | ||
1821 | devm_free_irq(dc->dev, dc->irq, dc); | |
1822 | ||
1823 | if (IS_ENABLED(CONFIG_DEBUG_FS)) { | |
1824 | err = tegra_dc_debugfs_exit(dc); | |
1825 | if (err < 0) | |
1826 | dev_err(dc->dev, "debugfs cleanup failed: %d\n", err); | |
1827 | } | |
1828 | ||
1829 | err = tegra_dc_rgb_exit(dc); | |
1830 | if (err) { | |
1831 | dev_err(dc->dev, "failed to shutdown RGB output: %d\n", err); | |
1832 | return err; | |
1833 | } | |
1834 | ||
df06b759 TR |
1835 | if (dc->domain) { |
1836 | iommu_detach_device(dc->domain, dc->dev); | |
1837 | dc->domain = NULL; | |
1838 | } | |
1839 | ||
2bcdcbfa TR |
1840 | host1x_syncpt_free(dc->syncpt); |
1841 | ||
d8f4a9ed TR |
1842 | return 0; |
1843 | } | |
1844 | ||
1845 | static const struct host1x_client_ops dc_client_ops = { | |
53fa7f72 TR |
1846 | .init = tegra_dc_init, |
1847 | .exit = tegra_dc_exit, | |
d8f4a9ed TR |
1848 | }; |
1849 | ||
8620fc62 | 1850 | static const struct tegra_dc_soc_info tegra20_dc_soc_info = { |
42d0659b | 1851 | .supports_border_color = true, |
8620fc62 | 1852 | .supports_interlacing = false, |
e687651b | 1853 | .supports_cursor = false, |
c134f019 | 1854 | .supports_block_linear = false, |
d1f3e1e0 | 1855 | .pitch_align = 8, |
9c012700 | 1856 | .has_powergate = false, |
8620fc62 TR |
1857 | }; |
1858 | ||
1859 | static const struct tegra_dc_soc_info tegra30_dc_soc_info = { | |
42d0659b | 1860 | .supports_border_color = true, |
8620fc62 | 1861 | .supports_interlacing = false, |
e687651b | 1862 | .supports_cursor = false, |
c134f019 | 1863 | .supports_block_linear = false, |
d1f3e1e0 | 1864 | .pitch_align = 8, |
9c012700 | 1865 | .has_powergate = false, |
d1f3e1e0 TR |
1866 | }; |
1867 | ||
1868 | static const struct tegra_dc_soc_info tegra114_dc_soc_info = { | |
42d0659b | 1869 | .supports_border_color = true, |
d1f3e1e0 TR |
1870 | .supports_interlacing = false, |
1871 | .supports_cursor = false, | |
1872 | .supports_block_linear = false, | |
1873 | .pitch_align = 64, | |
9c012700 | 1874 | .has_powergate = true, |
8620fc62 TR |
1875 | }; |
1876 | ||
1877 | static const struct tegra_dc_soc_info tegra124_dc_soc_info = { | |
42d0659b | 1878 | .supports_border_color = false, |
8620fc62 | 1879 | .supports_interlacing = true, |
e687651b | 1880 | .supports_cursor = true, |
c134f019 | 1881 | .supports_block_linear = true, |
d1f3e1e0 | 1882 | .pitch_align = 64, |
9c012700 | 1883 | .has_powergate = true, |
8620fc62 TR |
1884 | }; |
1885 | ||
5b4f516f TR |
1886 | static const struct tegra_dc_soc_info tegra210_dc_soc_info = { |
1887 | .supports_border_color = false, | |
1888 | .supports_interlacing = true, | |
1889 | .supports_cursor = true, | |
1890 | .supports_block_linear = true, | |
1891 | .pitch_align = 64, | |
1892 | .has_powergate = true, | |
1893 | }; | |
1894 | ||
8620fc62 TR |
1895 | static const struct of_device_id tegra_dc_of_match[] = { |
1896 | { | |
5b4f516f TR |
1897 | .compatible = "nvidia,tegra210-dc", |
1898 | .data = &tegra210_dc_soc_info, | |
1899 | }, { | |
8620fc62 TR |
1900 | .compatible = "nvidia,tegra124-dc", |
1901 | .data = &tegra124_dc_soc_info, | |
9c012700 TR |
1902 | }, { |
1903 | .compatible = "nvidia,tegra114-dc", | |
1904 | .data = &tegra114_dc_soc_info, | |
8620fc62 TR |
1905 | }, { |
1906 | .compatible = "nvidia,tegra30-dc", | |
1907 | .data = &tegra30_dc_soc_info, | |
1908 | }, { | |
1909 | .compatible = "nvidia,tegra20-dc", | |
1910 | .data = &tegra20_dc_soc_info, | |
1911 | }, { | |
1912 | /* sentinel */ | |
1913 | } | |
1914 | }; | |
ef70728c | 1915 | MODULE_DEVICE_TABLE(of, tegra_dc_of_match); |
8620fc62 | 1916 | |
13411ddd TR |
1917 | static int tegra_dc_parse_dt(struct tegra_dc *dc) |
1918 | { | |
1919 | struct device_node *np; | |
1920 | u32 value = 0; | |
1921 | int err; | |
1922 | ||
1923 | err = of_property_read_u32(dc->dev->of_node, "nvidia,head", &value); | |
1924 | if (err < 0) { | |
1925 | dev_err(dc->dev, "missing \"nvidia,head\" property\n"); | |
1926 | ||
1927 | /* | |
1928 | * If the nvidia,head property isn't present, try to find the | |
1929 | * correct head number by looking up the position of this | |
1930 | * display controller's node within the device tree. Assuming | |
1931 | * that the nodes are ordered properly in the DTS file and | |
1932 | * that the translation into a flattened device tree blob | |
1933 | * preserves that ordering this will actually yield the right | |
1934 | * head number. | |
1935 | * | |
1936 | * If those assumptions don't hold, this will still work for | |
1937 | * cases where only a single display controller is used. | |
1938 | */ | |
1939 | for_each_matching_node(np, tegra_dc_of_match) { | |
cf6b1744 JL |
1940 | if (np == dc->dev->of_node) { |
1941 | of_node_put(np); | |
13411ddd | 1942 | break; |
cf6b1744 | 1943 | } |
13411ddd TR |
1944 | |
1945 | value++; | |
1946 | } | |
1947 | } | |
1948 | ||
1949 | dc->pipe = value; | |
1950 | ||
1951 | return 0; | |
1952 | } | |
1953 | ||
d8f4a9ed TR |
1954 | static int tegra_dc_probe(struct platform_device *pdev) |
1955 | { | |
8620fc62 | 1956 | const struct of_device_id *id; |
d8f4a9ed TR |
1957 | struct resource *regs; |
1958 | struct tegra_dc *dc; | |
1959 | int err; | |
1960 | ||
1961 | dc = devm_kzalloc(&pdev->dev, sizeof(*dc), GFP_KERNEL); | |
1962 | if (!dc) | |
1963 | return -ENOMEM; | |
1964 | ||
8620fc62 TR |
1965 | id = of_match_node(tegra_dc_of_match, pdev->dev.of_node); |
1966 | if (!id) | |
1967 | return -ENODEV; | |
1968 | ||
6e5ff998 | 1969 | spin_lock_init(&dc->lock); |
d8f4a9ed TR |
1970 | INIT_LIST_HEAD(&dc->list); |
1971 | dc->dev = &pdev->dev; | |
8620fc62 | 1972 | dc->soc = id->data; |
d8f4a9ed | 1973 | |
13411ddd TR |
1974 | err = tegra_dc_parse_dt(dc); |
1975 | if (err < 0) | |
1976 | return err; | |
1977 | ||
d8f4a9ed TR |
1978 | dc->clk = devm_clk_get(&pdev->dev, NULL); |
1979 | if (IS_ERR(dc->clk)) { | |
1980 | dev_err(&pdev->dev, "failed to get clock\n"); | |
1981 | return PTR_ERR(dc->clk); | |
1982 | } | |
1983 | ||
ca48080a SW |
1984 | dc->rst = devm_reset_control_get(&pdev->dev, "dc"); |
1985 | if (IS_ERR(dc->rst)) { | |
1986 | dev_err(&pdev->dev, "failed to get reset\n"); | |
1987 | return PTR_ERR(dc->rst); | |
1988 | } | |
1989 | ||
9c012700 TR |
1990 | if (dc->soc->has_powergate) { |
1991 | if (dc->pipe == 0) | |
1992 | dc->powergate = TEGRA_POWERGATE_DIS; | |
1993 | else | |
1994 | dc->powergate = TEGRA_POWERGATE_DISB; | |
1995 | ||
1996 | err = tegra_powergate_sequence_power_up(dc->powergate, dc->clk, | |
1997 | dc->rst); | |
1998 | if (err < 0) { | |
1999 | dev_err(&pdev->dev, "failed to power partition: %d\n", | |
2000 | err); | |
2001 | return err; | |
2002 | } | |
2003 | } else { | |
2004 | err = clk_prepare_enable(dc->clk); | |
2005 | if (err < 0) { | |
2006 | dev_err(&pdev->dev, "failed to enable clock: %d\n", | |
2007 | err); | |
2008 | return err; | |
2009 | } | |
2010 | ||
2011 | err = reset_control_deassert(dc->rst); | |
2012 | if (err < 0) { | |
2013 | dev_err(&pdev->dev, "failed to deassert reset: %d\n", | |
2014 | err); | |
2015 | return err; | |
2016 | } | |
2017 | } | |
d8f4a9ed TR |
2018 | |
2019 | regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
d4ed6025 TR |
2020 | dc->regs = devm_ioremap_resource(&pdev->dev, regs); |
2021 | if (IS_ERR(dc->regs)) | |
2022 | return PTR_ERR(dc->regs); | |
d8f4a9ed TR |
2023 | |
2024 | dc->irq = platform_get_irq(pdev, 0); | |
2025 | if (dc->irq < 0) { | |
2026 | dev_err(&pdev->dev, "failed to get IRQ\n"); | |
2027 | return -ENXIO; | |
2028 | } | |
2029 | ||
776dc384 TR |
2030 | INIT_LIST_HEAD(&dc->client.list); |
2031 | dc->client.ops = &dc_client_ops; | |
2032 | dc->client.dev = &pdev->dev; | |
d8f4a9ed TR |
2033 | |
2034 | err = tegra_dc_rgb_probe(dc); | |
2035 | if (err < 0 && err != -ENODEV) { | |
2036 | dev_err(&pdev->dev, "failed to probe RGB output: %d\n", err); | |
2037 | return err; | |
2038 | } | |
2039 | ||
776dc384 | 2040 | err = host1x_client_register(&dc->client); |
d8f4a9ed TR |
2041 | if (err < 0) { |
2042 | dev_err(&pdev->dev, "failed to register host1x client: %d\n", | |
2043 | err); | |
2044 | return err; | |
2045 | } | |
2046 | ||
2047 | platform_set_drvdata(pdev, dc); | |
2048 | ||
2049 | return 0; | |
2050 | } | |
2051 | ||
2052 | static int tegra_dc_remove(struct platform_device *pdev) | |
2053 | { | |
d8f4a9ed TR |
2054 | struct tegra_dc *dc = platform_get_drvdata(pdev); |
2055 | int err; | |
2056 | ||
776dc384 | 2057 | err = host1x_client_unregister(&dc->client); |
d8f4a9ed TR |
2058 | if (err < 0) { |
2059 | dev_err(&pdev->dev, "failed to unregister host1x client: %d\n", | |
2060 | err); | |
2061 | return err; | |
2062 | } | |
2063 | ||
59d29c0e TR |
2064 | err = tegra_dc_rgb_remove(dc); |
2065 | if (err < 0) { | |
2066 | dev_err(&pdev->dev, "failed to remove RGB output: %d\n", err); | |
2067 | return err; | |
2068 | } | |
2069 | ||
5482d75a | 2070 | reset_control_assert(dc->rst); |
9c012700 TR |
2071 | |
2072 | if (dc->soc->has_powergate) | |
2073 | tegra_powergate_power_off(dc->powergate); | |
2074 | ||
d8f4a9ed TR |
2075 | clk_disable_unprepare(dc->clk); |
2076 | ||
2077 | return 0; | |
2078 | } | |
2079 | ||
d8f4a9ed TR |
2080 | struct platform_driver tegra_dc_driver = { |
2081 | .driver = { | |
2082 | .name = "tegra-dc", | |
d8f4a9ed TR |
2083 | .of_match_table = tegra_dc_of_match, |
2084 | }, | |
2085 | .probe = tegra_dc_probe, | |
2086 | .remove = tegra_dc_remove, | |
2087 | }; |