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29#include <drm/drm_fourcc.h>
30
31#include "gem/i915_gem_pm.h"
32#include "gt/intel_ring.h"
33
34#include "i915_drv.h"
35#include "i915_reg.h"
36#include "intel_display_types.h"
37#include "intel_frontbuffer.h"
38#include "intel_overlay.h"
39
40
41
42
43
44#define IMAGE_MAX_WIDTH 2048
45#define IMAGE_MAX_HEIGHT 2046
46
47#define IMAGE_MAX_WIDTH_LEGACY 1024
48#define IMAGE_MAX_HEIGHT_LEGACY 1088
49
50
51
52#define OCMD_TILED_SURFACE (0x1<<19)
53#define OCMD_MIRROR_MASK (0x3<<17)
54#define OCMD_MIRROR_MODE (0x3<<17)
55#define OCMD_MIRROR_HORIZONTAL (0x1<<17)
56#define OCMD_MIRROR_VERTICAL (0x2<<17)
57#define OCMD_MIRROR_BOTH (0x3<<17)
58#define OCMD_BYTEORDER_MASK (0x3<<14)
59#define OCMD_UV_SWAP (0x1<<14)
60#define OCMD_Y_SWAP (0x2<<14)
61#define OCMD_Y_AND_UV_SWAP (0x3<<14)
62#define OCMD_SOURCE_FORMAT_MASK (0xf<<10)
63#define OCMD_RGB_888 (0x1<<10)
64#define OCMD_RGB_555 (0x2<<10)
65#define OCMD_RGB_565 (0x3<<10)
66#define OCMD_YUV_422_PACKED (0x8<<10)
67#define OCMD_YUV_411_PACKED (0x9<<10)
68#define OCMD_YUV_420_PLANAR (0xc<<10)
69#define OCMD_YUV_422_PLANAR (0xd<<10)
70#define OCMD_YUV_410_PLANAR (0xe<<10)
71#define OCMD_TVSYNCFLIP_PARITY (0x1<<9)
72#define OCMD_TVSYNCFLIP_ENABLE (0x1<<7)
73#define OCMD_BUF_TYPE_MASK (0x1<<5)
74#define OCMD_BUF_TYPE_FRAME (0x0<<5)
75#define OCMD_BUF_TYPE_FIELD (0x1<<5)
76#define OCMD_TEST_MODE (0x1<<4)
77#define OCMD_BUFFER_SELECT (0x3<<2)
78#define OCMD_BUFFER0 (0x0<<2)
79#define OCMD_BUFFER1 (0x1<<2)
80#define OCMD_FIELD_SELECT (0x1<<2)
81#define OCMD_FIELD0 (0x0<<1)
82#define OCMD_FIELD1 (0x1<<1)
83#define OCMD_ENABLE (0x1<<0)
84
85
86#define OCONF_PIPE_MASK (0x1<<18)
87#define OCONF_PIPE_A (0x0<<18)
88#define OCONF_PIPE_B (0x1<<18)
89#define OCONF_GAMMA2_ENABLE (0x1<<16)
90#define OCONF_CSC_MODE_BT601 (0x0<<5)
91#define OCONF_CSC_MODE_BT709 (0x1<<5)
92#define OCONF_CSC_BYPASS (0x1<<4)
93#define OCONF_CC_OUT_8BIT (0x1<<3)
94#define OCONF_TEST_MODE (0x1<<2)
95#define OCONF_THREE_LINE_BUFFER (0x1<<0)
96#define OCONF_TWO_LINE_BUFFER (0x0<<0)
97
98
99#define DST_KEY_ENABLE (0x1<<31)
100#define CLK_RGB24_MASK 0x0
101#define CLK_RGB16_MASK 0x070307
102#define CLK_RGB15_MASK 0x070707
103#define CLK_RGB8I_MASK 0xffffff
104
105#define RGB16_TO_COLORKEY(c) \
106 (((c & 0xF800) << 8) | ((c & 0x07E0) << 5) | ((c & 0x001F) << 3))
107#define RGB15_TO_COLORKEY(c) \
108 (((c & 0x7c00) << 9) | ((c & 0x03E0) << 6) | ((c & 0x001F) << 3))
109
110
111#define OFC_UPDATE 0x1
112
113
114#define N_HORIZ_Y_TAPS 5
115#define N_VERT_Y_TAPS 3
116#define N_HORIZ_UV_TAPS 3
117#define N_VERT_UV_TAPS 3
118#define N_PHASES 17
119#define MAX_TAPS 5
120
121
122struct overlay_registers {
123 u32 OBUF_0Y;
124 u32 OBUF_1Y;
125 u32 OBUF_0U;
126 u32 OBUF_0V;
127 u32 OBUF_1U;
128 u32 OBUF_1V;
129 u32 OSTRIDE;
130 u32 YRGB_VPH;
131 u32 UV_VPH;
132 u32 HORZ_PH;
133 u32 INIT_PHS;
134 u32 DWINPOS;
135 u32 DWINSZ;
136 u32 SWIDTH;
137 u32 SWIDTHSW;
138 u32 SHEIGHT;
139 u32 YRGBSCALE;
140 u32 UVSCALE;
141 u32 OCLRC0;
142 u32 OCLRC1;
143 u32 DCLRKV;
144 u32 DCLRKM;
145 u32 SCLRKVH;
146 u32 SCLRKVL;
147 u32 SCLRKEN;
148 u32 OCONFIG;
149 u32 OCMD;
150 u32 RESERVED1;
151 u32 OSTART_0Y;
152 u32 OSTART_1Y;
153 u32 OSTART_0U;
154 u32 OSTART_0V;
155 u32 OSTART_1U;
156 u32 OSTART_1V;
157 u32 OTILEOFF_0Y;
158 u32 OTILEOFF_1Y;
159 u32 OTILEOFF_0U;
160 u32 OTILEOFF_0V;
161 u32 OTILEOFF_1U;
162 u32 OTILEOFF_1V;
163 u32 FASTHSCALE;
164 u32 UVSCALEV;
165 u32 RESERVEDC[(0x200 - 0xA8) / 4];
166 u16 Y_VCOEFS[N_VERT_Y_TAPS * N_PHASES];
167 u16 RESERVEDD[0x100 / 2 - N_VERT_Y_TAPS * N_PHASES];
168 u16 Y_HCOEFS[N_HORIZ_Y_TAPS * N_PHASES];
169 u16 RESERVEDE[0x200 / 2 - N_HORIZ_Y_TAPS * N_PHASES];
170 u16 UV_VCOEFS[N_VERT_UV_TAPS * N_PHASES];
171 u16 RESERVEDF[0x100 / 2 - N_VERT_UV_TAPS * N_PHASES];
172 u16 UV_HCOEFS[N_HORIZ_UV_TAPS * N_PHASES];
173 u16 RESERVEDG[0x100 / 2 - N_HORIZ_UV_TAPS * N_PHASES];
174};
175
176struct intel_overlay {
177 struct drm_i915_private *i915;
178 struct intel_context *context;
179 struct intel_crtc *crtc;
180 struct i915_vma *vma;
181 struct i915_vma *old_vma;
182 bool active;
183 bool pfit_active;
184 u32 pfit_vscale_ratio;
185 u32 color_key:24;
186 u32 color_key_enabled:1;
187 u32 brightness, contrast, saturation;
188 u32 old_xscale, old_yscale;
189
190 struct drm_i915_gem_object *reg_bo;
191 struct overlay_registers __iomem *regs;
192 u32 flip_addr;
193
194 struct i915_active last_flip;
195 void (*flip_complete)(struct intel_overlay *ovl);
196};
197
198static void i830_overlay_clock_gating(struct drm_i915_private *dev_priv,
199 bool enable)
200{
201 struct pci_dev *pdev = dev_priv->drm.pdev;
202 u8 val;
203
204
205 if (enable)
206 intel_de_write(dev_priv, DSPCLK_GATE_D, 0);
207 else
208 intel_de_write(dev_priv, DSPCLK_GATE_D,
209 OVRUNIT_CLOCK_GATE_DISABLE);
210
211
212 pci_bus_read_config_byte(pdev->bus,
213 PCI_DEVFN(0, 0), I830_CLOCK_GATE, &val);
214 if (enable)
215 val &= ~I830_L2_CACHE_CLOCK_GATE_DISABLE;
216 else
217 val |= I830_L2_CACHE_CLOCK_GATE_DISABLE;
218 pci_bus_write_config_byte(pdev->bus,
219 PCI_DEVFN(0, 0), I830_CLOCK_GATE, val);
220}
221
222static struct i915_request *
223alloc_request(struct intel_overlay *overlay, void (*fn)(struct intel_overlay *))
224{
225 struct i915_request *rq;
226 int err;
227
228 overlay->flip_complete = fn;
229
230 rq = i915_request_create(overlay->context);
231 if (IS_ERR(rq))
232 return rq;
233
234 err = i915_active_add_request(&overlay->last_flip, rq);
235 if (err) {
236 i915_request_add(rq);
237 return ERR_PTR(err);
238 }
239
240 return rq;
241}
242
243
244static int intel_overlay_on(struct intel_overlay *overlay)
245{
246 struct drm_i915_private *dev_priv = overlay->i915;
247 struct i915_request *rq;
248 u32 *cs;
249
250 drm_WARN_ON(&dev_priv->drm, overlay->active);
251
252 rq = alloc_request(overlay, NULL);
253 if (IS_ERR(rq))
254 return PTR_ERR(rq);
255
256 cs = intel_ring_begin(rq, 4);
257 if (IS_ERR(cs)) {
258 i915_request_add(rq);
259 return PTR_ERR(cs);
260 }
261
262 overlay->active = true;
263
264 if (IS_I830(dev_priv))
265 i830_overlay_clock_gating(dev_priv, false);
266
267 *cs++ = MI_OVERLAY_FLIP | MI_OVERLAY_ON;
268 *cs++ = overlay->flip_addr | OFC_UPDATE;
269 *cs++ = MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP;
270 *cs++ = MI_NOOP;
271 intel_ring_advance(rq, cs);
272
273 i915_request_add(rq);
274
275 return i915_active_wait(&overlay->last_flip);
276}
277
278static void intel_overlay_flip_prepare(struct intel_overlay *overlay,
279 struct i915_vma *vma)
280{
281 enum pipe pipe = overlay->crtc->pipe;
282 struct intel_frontbuffer *from = NULL, *to = NULL;
283
284 WARN_ON(overlay->old_vma);
285
286 if (overlay->vma)
287 from = intel_frontbuffer_get(overlay->vma->obj);
288 if (vma)
289 to = intel_frontbuffer_get(vma->obj);
290
291 intel_frontbuffer_track(from, to, INTEL_FRONTBUFFER_OVERLAY(pipe));
292
293 if (to)
294 intel_frontbuffer_put(to);
295 if (from)
296 intel_frontbuffer_put(from);
297
298 intel_frontbuffer_flip_prepare(overlay->i915,
299 INTEL_FRONTBUFFER_OVERLAY(pipe));
300
301 overlay->old_vma = overlay->vma;
302 if (vma)
303 overlay->vma = i915_vma_get(vma);
304 else
305 overlay->vma = NULL;
306}
307
308
309static int intel_overlay_continue(struct intel_overlay *overlay,
310 struct i915_vma *vma,
311 bool load_polyphase_filter)
312{
313 struct drm_i915_private *dev_priv = overlay->i915;
314 struct i915_request *rq;
315 u32 flip_addr = overlay->flip_addr;
316 u32 tmp, *cs;
317
318 drm_WARN_ON(&dev_priv->drm, !overlay->active);
319
320 if (load_polyphase_filter)
321 flip_addr |= OFC_UPDATE;
322
323
324 tmp = intel_de_read(dev_priv, DOVSTA);
325 if (tmp & (1 << 17))
326 drm_dbg(&dev_priv->drm, "overlay underrun, DOVSTA: %x\n", tmp);
327
328 rq = alloc_request(overlay, NULL);
329 if (IS_ERR(rq))
330 return PTR_ERR(rq);
331
332 cs = intel_ring_begin(rq, 2);
333 if (IS_ERR(cs)) {
334 i915_request_add(rq);
335 return PTR_ERR(cs);
336 }
337
338 *cs++ = MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE;
339 *cs++ = flip_addr;
340 intel_ring_advance(rq, cs);
341
342 intel_overlay_flip_prepare(overlay, vma);
343 i915_request_add(rq);
344
345 return 0;
346}
347
348static void intel_overlay_release_old_vma(struct intel_overlay *overlay)
349{
350 struct i915_vma *vma;
351
352 vma = fetch_and_zero(&overlay->old_vma);
353 if (WARN_ON(!vma))
354 return;
355
356 intel_frontbuffer_flip_complete(overlay->i915,
357 INTEL_FRONTBUFFER_OVERLAY(overlay->crtc->pipe));
358
359 i915_gem_object_unpin_from_display_plane(vma);
360 i915_vma_put(vma);
361}
362
363static void
364intel_overlay_release_old_vid_tail(struct intel_overlay *overlay)
365{
366 intel_overlay_release_old_vma(overlay);
367}
368
369static void intel_overlay_off_tail(struct intel_overlay *overlay)
370{
371 struct drm_i915_private *dev_priv = overlay->i915;
372
373 intel_overlay_release_old_vma(overlay);
374
375 overlay->crtc->overlay = NULL;
376 overlay->crtc = NULL;
377 overlay->active = false;
378
379 if (IS_I830(dev_priv))
380 i830_overlay_clock_gating(dev_priv, true);
381}
382
383static void
384intel_overlay_last_flip_retire(struct i915_active *active)
385{
386 struct intel_overlay *overlay =
387 container_of(active, typeof(*overlay), last_flip);
388
389 if (overlay->flip_complete)
390 overlay->flip_complete(overlay);
391}
392
393
394static int intel_overlay_off(struct intel_overlay *overlay)
395{
396 struct i915_request *rq;
397 u32 *cs, flip_addr = overlay->flip_addr;
398
399 WARN_ON(!overlay->active);
400
401
402
403
404
405 flip_addr |= OFC_UPDATE;
406
407 rq = alloc_request(overlay, intel_overlay_off_tail);
408 if (IS_ERR(rq))
409 return PTR_ERR(rq);
410
411 cs = intel_ring_begin(rq, 6);
412 if (IS_ERR(cs)) {
413 i915_request_add(rq);
414 return PTR_ERR(cs);
415 }
416
417
418 *cs++ = MI_OVERLAY_FLIP | MI_OVERLAY_CONTINUE;
419 *cs++ = flip_addr;
420 *cs++ = MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP;
421
422
423 *cs++ = MI_OVERLAY_FLIP | MI_OVERLAY_OFF;
424 *cs++ = flip_addr;
425 *cs++ = MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP;
426
427 intel_ring_advance(rq, cs);
428
429 intel_overlay_flip_prepare(overlay, NULL);
430 i915_request_add(rq);
431
432 return i915_active_wait(&overlay->last_flip);
433}
434
435
436
437static int intel_overlay_recover_from_interrupt(struct intel_overlay *overlay)
438{
439 return i915_active_wait(&overlay->last_flip);
440}
441
442
443
444
445
446static int intel_overlay_release_old_vid(struct intel_overlay *overlay)
447{
448 struct drm_i915_private *dev_priv = overlay->i915;
449 struct i915_request *rq;
450 u32 *cs;
451
452
453
454
455
456 if (!overlay->old_vma)
457 return 0;
458
459 if (!(intel_de_read(dev_priv, GEN2_ISR) & I915_OVERLAY_PLANE_FLIP_PENDING_INTERRUPT)) {
460 intel_overlay_release_old_vid_tail(overlay);
461 return 0;
462 }
463
464 rq = alloc_request(overlay, intel_overlay_release_old_vid_tail);
465 if (IS_ERR(rq))
466 return PTR_ERR(rq);
467
468 cs = intel_ring_begin(rq, 2);
469 if (IS_ERR(cs)) {
470 i915_request_add(rq);
471 return PTR_ERR(cs);
472 }
473
474 *cs++ = MI_WAIT_FOR_EVENT | MI_WAIT_FOR_OVERLAY_FLIP;
475 *cs++ = MI_NOOP;
476 intel_ring_advance(rq, cs);
477
478 i915_request_add(rq);
479
480 return i915_active_wait(&overlay->last_flip);
481}
482
483void intel_overlay_reset(struct drm_i915_private *dev_priv)
484{
485 struct intel_overlay *overlay = dev_priv->overlay;
486
487 if (!overlay)
488 return;
489
490 overlay->old_xscale = 0;
491 overlay->old_yscale = 0;
492 overlay->crtc = NULL;
493 overlay->active = false;
494}
495
496static int packed_depth_bytes(u32 format)
497{
498 switch (format & I915_OVERLAY_DEPTH_MASK) {
499 case I915_OVERLAY_YUV422:
500 return 4;
501 case I915_OVERLAY_YUV411:
502
503 default:
504 return -EINVAL;
505 }
506}
507
508static int packed_width_bytes(u32 format, short width)
509{
510 switch (format & I915_OVERLAY_DEPTH_MASK) {
511 case I915_OVERLAY_YUV422:
512 return width << 1;
513 default:
514 return -EINVAL;
515 }
516}
517
518static int uv_hsubsampling(u32 format)
519{
520 switch (format & I915_OVERLAY_DEPTH_MASK) {
521 case I915_OVERLAY_YUV422:
522 case I915_OVERLAY_YUV420:
523 return 2;
524 case I915_OVERLAY_YUV411:
525 case I915_OVERLAY_YUV410:
526 return 4;
527 default:
528 return -EINVAL;
529 }
530}
531
532static int uv_vsubsampling(u32 format)
533{
534 switch (format & I915_OVERLAY_DEPTH_MASK) {
535 case I915_OVERLAY_YUV420:
536 case I915_OVERLAY_YUV410:
537 return 2;
538 case I915_OVERLAY_YUV422:
539 case I915_OVERLAY_YUV411:
540 return 1;
541 default:
542 return -EINVAL;
543 }
544}
545
546static u32 calc_swidthsw(struct drm_i915_private *dev_priv, u32 offset, u32 width)
547{
548 u32 sw;
549
550 if (IS_GEN(dev_priv, 2))
551 sw = ALIGN((offset & 31) + width, 32);
552 else
553 sw = ALIGN((offset & 63) + width, 64);
554
555 if (sw == 0)
556 return 0;
557
558 return (sw - 32) >> 3;
559}
560
561static const u16 y_static_hcoeffs[N_PHASES][N_HORIZ_Y_TAPS] = {
562 [ 0] = { 0x3000, 0xb4a0, 0x1930, 0x1920, 0xb4a0, },
563 [ 1] = { 0x3000, 0xb500, 0x19d0, 0x1880, 0xb440, },
564 [ 2] = { 0x3000, 0xb540, 0x1a88, 0x2f80, 0xb3e0, },
565 [ 3] = { 0x3000, 0xb580, 0x1b30, 0x2e20, 0xb380, },
566 [ 4] = { 0x3000, 0xb5c0, 0x1bd8, 0x2cc0, 0xb320, },
567 [ 5] = { 0x3020, 0xb5e0, 0x1c60, 0x2b80, 0xb2c0, },
568 [ 6] = { 0x3020, 0xb5e0, 0x1cf8, 0x2a20, 0xb260, },
569 [ 7] = { 0x3020, 0xb5e0, 0x1d80, 0x28e0, 0xb200, },
570 [ 8] = { 0x3020, 0xb5c0, 0x1e08, 0x3f40, 0xb1c0, },
571 [ 9] = { 0x3020, 0xb580, 0x1e78, 0x3ce0, 0xb160, },
572 [10] = { 0x3040, 0xb520, 0x1ed8, 0x3aa0, 0xb120, },
573 [11] = { 0x3040, 0xb4a0, 0x1f30, 0x3880, 0xb0e0, },
574 [12] = { 0x3040, 0xb400, 0x1f78, 0x3680, 0xb0a0, },
575 [13] = { 0x3020, 0xb340, 0x1fb8, 0x34a0, 0xb060, },
576 [14] = { 0x3020, 0xb240, 0x1fe0, 0x32e0, 0xb040, },
577 [15] = { 0x3020, 0xb140, 0x1ff8, 0x3160, 0xb020, },
578 [16] = { 0xb000, 0x3000, 0x0800, 0x3000, 0xb000, },
579};
580
581static const u16 uv_static_hcoeffs[N_PHASES][N_HORIZ_UV_TAPS] = {
582 [ 0] = { 0x3000, 0x1800, 0x1800, },
583 [ 1] = { 0xb000, 0x18d0, 0x2e60, },
584 [ 2] = { 0xb000, 0x1990, 0x2ce0, },
585 [ 3] = { 0xb020, 0x1a68, 0x2b40, },
586 [ 4] = { 0xb040, 0x1b20, 0x29e0, },
587 [ 5] = { 0xb060, 0x1bd8, 0x2880, },
588 [ 6] = { 0xb080, 0x1c88, 0x3e60, },
589 [ 7] = { 0xb0a0, 0x1d28, 0x3c00, },
590 [ 8] = { 0xb0c0, 0x1db8, 0x39e0, },
591 [ 9] = { 0xb0e0, 0x1e40, 0x37e0, },
592 [10] = { 0xb100, 0x1eb8, 0x3620, },
593 [11] = { 0xb100, 0x1f18, 0x34a0, },
594 [12] = { 0xb100, 0x1f68, 0x3360, },
595 [13] = { 0xb0e0, 0x1fa8, 0x3240, },
596 [14] = { 0xb0c0, 0x1fe0, 0x3140, },
597 [15] = { 0xb060, 0x1ff0, 0x30a0, },
598 [16] = { 0x3000, 0x0800, 0x3000, },
599};
600
601static void update_polyphase_filter(struct overlay_registers __iomem *regs)
602{
603 memcpy_toio(regs->Y_HCOEFS, y_static_hcoeffs, sizeof(y_static_hcoeffs));
604 memcpy_toio(regs->UV_HCOEFS, uv_static_hcoeffs,
605 sizeof(uv_static_hcoeffs));
606}
607
608static bool update_scaling_factors(struct intel_overlay *overlay,
609 struct overlay_registers __iomem *regs,
610 struct drm_intel_overlay_put_image *params)
611{
612
613 u32 xscale, yscale, xscale_UV, yscale_UV;
614#define FP_SHIFT 12
615#define FRACT_MASK 0xfff
616 bool scale_changed = false;
617 int uv_hscale = uv_hsubsampling(params->flags);
618 int uv_vscale = uv_vsubsampling(params->flags);
619
620 if (params->dst_width > 1)
621 xscale = ((params->src_scan_width - 1) << FP_SHIFT) /
622 params->dst_width;
623 else
624 xscale = 1 << FP_SHIFT;
625
626 if (params->dst_height > 1)
627 yscale = ((params->src_scan_height - 1) << FP_SHIFT) /
628 params->dst_height;
629 else
630 yscale = 1 << FP_SHIFT;
631
632
633 xscale_UV = xscale/uv_hscale;
634 yscale_UV = yscale/uv_vscale;
635
636 xscale = xscale_UV * uv_hscale;
637 yscale = yscale_UV * uv_vscale;
638
639
640
641
642
643 if (xscale != overlay->old_xscale || yscale != overlay->old_yscale)
644 scale_changed = true;
645 overlay->old_xscale = xscale;
646 overlay->old_yscale = yscale;
647
648 iowrite32(((yscale & FRACT_MASK) << 20) |
649 ((xscale >> FP_SHIFT) << 16) |
650 ((xscale & FRACT_MASK) << 3),
651 ®s->YRGBSCALE);
652
653 iowrite32(((yscale_UV & FRACT_MASK) << 20) |
654 ((xscale_UV >> FP_SHIFT) << 16) |
655 ((xscale_UV & FRACT_MASK) << 3),
656 ®s->UVSCALE);
657
658 iowrite32((((yscale >> FP_SHIFT) << 16) |
659 ((yscale_UV >> FP_SHIFT) << 0)),
660 ®s->UVSCALEV);
661
662 if (scale_changed)
663 update_polyphase_filter(regs);
664
665 return scale_changed;
666}
667
668static void update_colorkey(struct intel_overlay *overlay,
669 struct overlay_registers __iomem *regs)
670{
671 const struct intel_plane_state *state =
672 to_intel_plane_state(overlay->crtc->base.primary->state);
673 u32 key = overlay->color_key;
674 u32 format = 0;
675 u32 flags = 0;
676
677 if (overlay->color_key_enabled)
678 flags |= DST_KEY_ENABLE;
679
680 if (state->uapi.visible)
681 format = state->hw.fb->format->format;
682
683 switch (format) {
684 case DRM_FORMAT_C8:
685 key = 0;
686 flags |= CLK_RGB8I_MASK;
687 break;
688 case DRM_FORMAT_XRGB1555:
689 key = RGB15_TO_COLORKEY(key);
690 flags |= CLK_RGB15_MASK;
691 break;
692 case DRM_FORMAT_RGB565:
693 key = RGB16_TO_COLORKEY(key);
694 flags |= CLK_RGB16_MASK;
695 break;
696 default:
697 flags |= CLK_RGB24_MASK;
698 break;
699 }
700
701 iowrite32(key, ®s->DCLRKV);
702 iowrite32(flags, ®s->DCLRKM);
703}
704
705static u32 overlay_cmd_reg(struct drm_intel_overlay_put_image *params)
706{
707 u32 cmd = OCMD_ENABLE | OCMD_BUF_TYPE_FRAME | OCMD_BUFFER0;
708
709 if (params->flags & I915_OVERLAY_YUV_PLANAR) {
710 switch (params->flags & I915_OVERLAY_DEPTH_MASK) {
711 case I915_OVERLAY_YUV422:
712 cmd |= OCMD_YUV_422_PLANAR;
713 break;
714 case I915_OVERLAY_YUV420:
715 cmd |= OCMD_YUV_420_PLANAR;
716 break;
717 case I915_OVERLAY_YUV411:
718 case I915_OVERLAY_YUV410:
719 cmd |= OCMD_YUV_410_PLANAR;
720 break;
721 }
722 } else {
723 switch (params->flags & I915_OVERLAY_DEPTH_MASK) {
724 case I915_OVERLAY_YUV422:
725 cmd |= OCMD_YUV_422_PACKED;
726 break;
727 case I915_OVERLAY_YUV411:
728 cmd |= OCMD_YUV_411_PACKED;
729 break;
730 }
731
732 switch (params->flags & I915_OVERLAY_SWAP_MASK) {
733 case I915_OVERLAY_NO_SWAP:
734 break;
735 case I915_OVERLAY_UV_SWAP:
736 cmd |= OCMD_UV_SWAP;
737 break;
738 case I915_OVERLAY_Y_SWAP:
739 cmd |= OCMD_Y_SWAP;
740 break;
741 case I915_OVERLAY_Y_AND_UV_SWAP:
742 cmd |= OCMD_Y_AND_UV_SWAP;
743 break;
744 }
745 }
746
747 return cmd;
748}
749
750static int intel_overlay_do_put_image(struct intel_overlay *overlay,
751 struct drm_i915_gem_object *new_bo,
752 struct drm_intel_overlay_put_image *params)
753{
754 struct overlay_registers __iomem *regs = overlay->regs;
755 struct drm_i915_private *dev_priv = overlay->i915;
756 u32 swidth, swidthsw, sheight, ostride;
757 enum pipe pipe = overlay->crtc->pipe;
758 bool scale_changed = false;
759 struct i915_vma *vma;
760 int ret, tmp_width;
761
762 drm_WARN_ON(&dev_priv->drm,
763 !drm_modeset_is_locked(&dev_priv->drm.mode_config.connection_mutex));
764
765 ret = intel_overlay_release_old_vid(overlay);
766 if (ret != 0)
767 return ret;
768
769 atomic_inc(&dev_priv->gpu_error.pending_fb_pin);
770
771 vma = i915_gem_object_pin_to_display_plane(new_bo,
772 0, NULL, PIN_MAPPABLE);
773 if (IS_ERR(vma)) {
774 ret = PTR_ERR(vma);
775 goto out_pin_section;
776 }
777 i915_gem_object_flush_frontbuffer(new_bo, ORIGIN_DIRTYFB);
778
779 if (!overlay->active) {
780 u32 oconfig;
781
782 oconfig = OCONF_CC_OUT_8BIT;
783 if (IS_GEN(dev_priv, 4))
784 oconfig |= OCONF_CSC_MODE_BT709;
785 oconfig |= pipe == 0 ?
786 OCONF_PIPE_A : OCONF_PIPE_B;
787 iowrite32(oconfig, ®s->OCONFIG);
788
789 ret = intel_overlay_on(overlay);
790 if (ret != 0)
791 goto out_unpin;
792 }
793
794 iowrite32(params->dst_y << 16 | params->dst_x, ®s->DWINPOS);
795 iowrite32(params->dst_height << 16 | params->dst_width, ®s->DWINSZ);
796
797 if (params->flags & I915_OVERLAY_YUV_PACKED)
798 tmp_width = packed_width_bytes(params->flags,
799 params->src_width);
800 else
801 tmp_width = params->src_width;
802
803 swidth = params->src_width;
804 swidthsw = calc_swidthsw(dev_priv, params->offset_Y, tmp_width);
805 sheight = params->src_height;
806 iowrite32(i915_ggtt_offset(vma) + params->offset_Y, ®s->OBUF_0Y);
807 ostride = params->stride_Y;
808
809 if (params->flags & I915_OVERLAY_YUV_PLANAR) {
810 int uv_hscale = uv_hsubsampling(params->flags);
811 int uv_vscale = uv_vsubsampling(params->flags);
812 u32 tmp_U, tmp_V;
813
814 swidth |= (params->src_width / uv_hscale) << 16;
815 sheight |= (params->src_height / uv_vscale) << 16;
816
817 tmp_U = calc_swidthsw(dev_priv, params->offset_U,
818 params->src_width / uv_hscale);
819 tmp_V = calc_swidthsw(dev_priv, params->offset_V,
820 params->src_width / uv_hscale);
821 swidthsw |= max(tmp_U, tmp_V) << 16;
822
823 iowrite32(i915_ggtt_offset(vma) + params->offset_U,
824 ®s->OBUF_0U);
825 iowrite32(i915_ggtt_offset(vma) + params->offset_V,
826 ®s->OBUF_0V);
827
828 ostride |= params->stride_UV << 16;
829 }
830
831 iowrite32(swidth, ®s->SWIDTH);
832 iowrite32(swidthsw, ®s->SWIDTHSW);
833 iowrite32(sheight, ®s->SHEIGHT);
834 iowrite32(ostride, ®s->OSTRIDE);
835
836 scale_changed = update_scaling_factors(overlay, regs, params);
837
838 update_colorkey(overlay, regs);
839
840 iowrite32(overlay_cmd_reg(params), ®s->OCMD);
841
842 ret = intel_overlay_continue(overlay, vma, scale_changed);
843 if (ret)
844 goto out_unpin;
845
846 return 0;
847
848out_unpin:
849 i915_gem_object_unpin_from_display_plane(vma);
850out_pin_section:
851 atomic_dec(&dev_priv->gpu_error.pending_fb_pin);
852
853 return ret;
854}
855
856int intel_overlay_switch_off(struct intel_overlay *overlay)
857{
858 struct drm_i915_private *dev_priv = overlay->i915;
859 int ret;
860
861 drm_WARN_ON(&dev_priv->drm,
862 !drm_modeset_is_locked(&dev_priv->drm.mode_config.connection_mutex));
863
864 ret = intel_overlay_recover_from_interrupt(overlay);
865 if (ret != 0)
866 return ret;
867
868 if (!overlay->active)
869 return 0;
870
871 ret = intel_overlay_release_old_vid(overlay);
872 if (ret != 0)
873 return ret;
874
875 iowrite32(0, &overlay->regs->OCMD);
876
877 return intel_overlay_off(overlay);
878}
879
880static int check_overlay_possible_on_crtc(struct intel_overlay *overlay,
881 struct intel_crtc *crtc)
882{
883 if (!crtc->active)
884 return -EINVAL;
885
886
887 if (crtc->config->double_wide)
888 return -EINVAL;
889
890 return 0;
891}
892
893static void update_pfit_vscale_ratio(struct intel_overlay *overlay)
894{
895 struct drm_i915_private *dev_priv = overlay->i915;
896 u32 pfit_control = intel_de_read(dev_priv, PFIT_CONTROL);
897 u32 ratio;
898
899
900
901
902 if (INTEL_GEN(dev_priv) >= 4) {
903
904 ratio = intel_de_read(dev_priv, PFIT_PGM_RATIOS) >> PFIT_VERT_SCALE_SHIFT_965;
905 } else {
906 if (pfit_control & VERT_AUTO_SCALE)
907 ratio = intel_de_read(dev_priv, PFIT_AUTO_RATIOS);
908 else
909 ratio = intel_de_read(dev_priv, PFIT_PGM_RATIOS);
910 ratio >>= PFIT_VERT_SCALE_SHIFT;
911 }
912
913 overlay->pfit_vscale_ratio = ratio;
914}
915
916static int check_overlay_dst(struct intel_overlay *overlay,
917 struct drm_intel_overlay_put_image *rec)
918{
919 const struct intel_crtc_state *pipe_config =
920 overlay->crtc->config;
921
922 if (rec->dst_x < pipe_config->pipe_src_w &&
923 rec->dst_x + rec->dst_width <= pipe_config->pipe_src_w &&
924 rec->dst_y < pipe_config->pipe_src_h &&
925 rec->dst_y + rec->dst_height <= pipe_config->pipe_src_h)
926 return 0;
927 else
928 return -EINVAL;
929}
930
931static int check_overlay_scaling(struct drm_intel_overlay_put_image *rec)
932{
933 u32 tmp;
934
935
936 tmp = ((rec->src_scan_height << 16) / rec->dst_height) >> 16;
937 if (tmp > 7)
938 return -EINVAL;
939
940 tmp = ((rec->src_scan_width << 16) / rec->dst_width) >> 16;
941 if (tmp > 7)
942 return -EINVAL;
943
944 return 0;
945}
946
947static int check_overlay_src(struct drm_i915_private *dev_priv,
948 struct drm_intel_overlay_put_image *rec,
949 struct drm_i915_gem_object *new_bo)
950{
951 int uv_hscale = uv_hsubsampling(rec->flags);
952 int uv_vscale = uv_vsubsampling(rec->flags);
953 u32 stride_mask;
954 int depth;
955 u32 tmp;
956
957
958 if (IS_I845G(dev_priv) || IS_I830(dev_priv)) {
959 if (rec->src_height > IMAGE_MAX_HEIGHT_LEGACY ||
960 rec->src_width > IMAGE_MAX_WIDTH_LEGACY)
961 return -EINVAL;
962 } else {
963 if (rec->src_height > IMAGE_MAX_HEIGHT ||
964 rec->src_width > IMAGE_MAX_WIDTH)
965 return -EINVAL;
966 }
967
968
969 if (rec->src_height < N_VERT_Y_TAPS*4 ||
970 rec->src_width < N_HORIZ_Y_TAPS*4)
971 return -EINVAL;
972
973
974 switch (rec->flags & I915_OVERLAY_TYPE_MASK) {
975 case I915_OVERLAY_RGB:
976
977 return -EINVAL;
978
979 case I915_OVERLAY_YUV_PACKED:
980 if (uv_vscale != 1)
981 return -EINVAL;
982
983 depth = packed_depth_bytes(rec->flags);
984 if (depth < 0)
985 return depth;
986
987
988 rec->stride_UV = 0;
989 rec->offset_U = 0;
990 rec->offset_V = 0;
991
992 if (rec->offset_Y % depth)
993 return -EINVAL;
994 break;
995
996 case I915_OVERLAY_YUV_PLANAR:
997 if (uv_vscale < 0 || uv_hscale < 0)
998 return -EINVAL;
999
1000 break;
1001
1002 default:
1003 return -EINVAL;
1004 }
1005
1006 if (rec->src_width % uv_hscale)
1007 return -EINVAL;
1008
1009
1010 if (IS_I830(dev_priv) || IS_I845G(dev_priv))
1011 stride_mask = 255;
1012 else
1013 stride_mask = 63;
1014
1015 if (rec->stride_Y & stride_mask || rec->stride_UV & stride_mask)
1016 return -EINVAL;
1017 if (IS_GEN(dev_priv, 4) && rec->stride_Y < 512)
1018 return -EINVAL;
1019
1020 tmp = (rec->flags & I915_OVERLAY_TYPE_MASK) == I915_OVERLAY_YUV_PLANAR ?
1021 4096 : 8192;
1022 if (rec->stride_Y > tmp || rec->stride_UV > 2*1024)
1023 return -EINVAL;
1024
1025
1026 switch (rec->flags & I915_OVERLAY_TYPE_MASK) {
1027 case I915_OVERLAY_RGB:
1028 case I915_OVERLAY_YUV_PACKED:
1029
1030 if (packed_width_bytes(rec->flags, rec->src_width) > rec->stride_Y)
1031 return -EINVAL;
1032
1033 tmp = rec->stride_Y*rec->src_height;
1034 if (rec->offset_Y + tmp > new_bo->base.size)
1035 return -EINVAL;
1036 break;
1037
1038 case I915_OVERLAY_YUV_PLANAR:
1039 if (rec->src_width > rec->stride_Y)
1040 return -EINVAL;
1041 if (rec->src_width/uv_hscale > rec->stride_UV)
1042 return -EINVAL;
1043
1044 tmp = rec->stride_Y * rec->src_height;
1045 if (rec->offset_Y + tmp > new_bo->base.size)
1046 return -EINVAL;
1047
1048 tmp = rec->stride_UV * (rec->src_height / uv_vscale);
1049 if (rec->offset_U + tmp > new_bo->base.size ||
1050 rec->offset_V + tmp > new_bo->base.size)
1051 return -EINVAL;
1052 break;
1053 }
1054
1055 return 0;
1056}
1057
1058int intel_overlay_put_image_ioctl(struct drm_device *dev, void *data,
1059 struct drm_file *file_priv)
1060{
1061 struct drm_intel_overlay_put_image *params = data;
1062 struct drm_i915_private *dev_priv = to_i915(dev);
1063 struct intel_overlay *overlay;
1064 struct drm_crtc *drmmode_crtc;
1065 struct intel_crtc *crtc;
1066 struct drm_i915_gem_object *new_bo;
1067 int ret;
1068
1069 overlay = dev_priv->overlay;
1070 if (!overlay) {
1071 drm_dbg(&dev_priv->drm, "userspace bug: no overlay\n");
1072 return -ENODEV;
1073 }
1074
1075 if (!(params->flags & I915_OVERLAY_ENABLE)) {
1076 drm_modeset_lock_all(dev);
1077 ret = intel_overlay_switch_off(overlay);
1078 drm_modeset_unlock_all(dev);
1079
1080 return ret;
1081 }
1082
1083 drmmode_crtc = drm_crtc_find(dev, file_priv, params->crtc_id);
1084 if (!drmmode_crtc)
1085 return -ENOENT;
1086 crtc = to_intel_crtc(drmmode_crtc);
1087
1088 new_bo = i915_gem_object_lookup(file_priv, params->bo_handle);
1089 if (!new_bo)
1090 return -ENOENT;
1091
1092 drm_modeset_lock_all(dev);
1093
1094 if (i915_gem_object_is_tiled(new_bo)) {
1095 drm_dbg_kms(&dev_priv->drm,
1096 "buffer used for overlay image can not be tiled\n");
1097 ret = -EINVAL;
1098 goto out_unlock;
1099 }
1100
1101 ret = intel_overlay_recover_from_interrupt(overlay);
1102 if (ret != 0)
1103 goto out_unlock;
1104
1105 if (overlay->crtc != crtc) {
1106 ret = intel_overlay_switch_off(overlay);
1107 if (ret != 0)
1108 goto out_unlock;
1109
1110 ret = check_overlay_possible_on_crtc(overlay, crtc);
1111 if (ret != 0)
1112 goto out_unlock;
1113
1114 overlay->crtc = crtc;
1115 crtc->overlay = overlay;
1116
1117
1118 if (crtc->config->pipe_src_w > 1024 &&
1119 crtc->config->gmch_pfit.control & PFIT_ENABLE) {
1120 overlay->pfit_active = true;
1121 update_pfit_vscale_ratio(overlay);
1122 } else
1123 overlay->pfit_active = false;
1124 }
1125
1126 ret = check_overlay_dst(overlay, params);
1127 if (ret != 0)
1128 goto out_unlock;
1129
1130 if (overlay->pfit_active) {
1131 params->dst_y = (((u32)params->dst_y << 12) /
1132 overlay->pfit_vscale_ratio);
1133
1134 params->dst_height = (((u32)params->dst_height << 12) /
1135 overlay->pfit_vscale_ratio) + 1;
1136 }
1137
1138 if (params->src_scan_height > params->src_height ||
1139 params->src_scan_width > params->src_width) {
1140 ret = -EINVAL;
1141 goto out_unlock;
1142 }
1143
1144 ret = check_overlay_src(dev_priv, params, new_bo);
1145 if (ret != 0)
1146 goto out_unlock;
1147
1148
1149 ret = check_overlay_scaling(params);
1150 if (ret != 0)
1151 goto out_unlock;
1152
1153 ret = intel_overlay_do_put_image(overlay, new_bo, params);
1154 if (ret != 0)
1155 goto out_unlock;
1156
1157 drm_modeset_unlock_all(dev);
1158 i915_gem_object_put(new_bo);
1159
1160 return 0;
1161
1162out_unlock:
1163 drm_modeset_unlock_all(dev);
1164 i915_gem_object_put(new_bo);
1165
1166 return ret;
1167}
1168
1169static void update_reg_attrs(struct intel_overlay *overlay,
1170 struct overlay_registers __iomem *regs)
1171{
1172 iowrite32((overlay->contrast << 18) | (overlay->brightness & 0xff),
1173 ®s->OCLRC0);
1174 iowrite32(overlay->saturation, ®s->OCLRC1);
1175}
1176
1177static bool check_gamma_bounds(u32 gamma1, u32 gamma2)
1178{
1179 int i;
1180
1181 if (gamma1 & 0xff000000 || gamma2 & 0xff000000)
1182 return false;
1183
1184 for (i = 0; i < 3; i++) {
1185 if (((gamma1 >> i*8) & 0xff) >= ((gamma2 >> i*8) & 0xff))
1186 return false;
1187 }
1188
1189 return true;
1190}
1191
1192static bool check_gamma5_errata(u32 gamma5)
1193{
1194 int i;
1195
1196 for (i = 0; i < 3; i++) {
1197 if (((gamma5 >> i*8) & 0xff) == 0x80)
1198 return false;
1199 }
1200
1201 return true;
1202}
1203
1204static int check_gamma(struct drm_intel_overlay_attrs *attrs)
1205{
1206 if (!check_gamma_bounds(0, attrs->gamma0) ||
1207 !check_gamma_bounds(attrs->gamma0, attrs->gamma1) ||
1208 !check_gamma_bounds(attrs->gamma1, attrs->gamma2) ||
1209 !check_gamma_bounds(attrs->gamma2, attrs->gamma3) ||
1210 !check_gamma_bounds(attrs->gamma3, attrs->gamma4) ||
1211 !check_gamma_bounds(attrs->gamma4, attrs->gamma5) ||
1212 !check_gamma_bounds(attrs->gamma5, 0x00ffffff))
1213 return -EINVAL;
1214
1215 if (!check_gamma5_errata(attrs->gamma5))
1216 return -EINVAL;
1217
1218 return 0;
1219}
1220
1221int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
1222 struct drm_file *file_priv)
1223{
1224 struct drm_intel_overlay_attrs *attrs = data;
1225 struct drm_i915_private *dev_priv = to_i915(dev);
1226 struct intel_overlay *overlay;
1227 int ret;
1228
1229 overlay = dev_priv->overlay;
1230 if (!overlay) {
1231 drm_dbg(&dev_priv->drm, "userspace bug: no overlay\n");
1232 return -ENODEV;
1233 }
1234
1235 drm_modeset_lock_all(dev);
1236
1237 ret = -EINVAL;
1238 if (!(attrs->flags & I915_OVERLAY_UPDATE_ATTRS)) {
1239 attrs->color_key = overlay->color_key;
1240 attrs->brightness = overlay->brightness;
1241 attrs->contrast = overlay->contrast;
1242 attrs->saturation = overlay->saturation;
1243
1244 if (!IS_GEN(dev_priv, 2)) {
1245 attrs->gamma0 = intel_de_read(dev_priv, OGAMC0);
1246 attrs->gamma1 = intel_de_read(dev_priv, OGAMC1);
1247 attrs->gamma2 = intel_de_read(dev_priv, OGAMC2);
1248 attrs->gamma3 = intel_de_read(dev_priv, OGAMC3);
1249 attrs->gamma4 = intel_de_read(dev_priv, OGAMC4);
1250 attrs->gamma5 = intel_de_read(dev_priv, OGAMC5);
1251 }
1252 } else {
1253 if (attrs->brightness < -128 || attrs->brightness > 127)
1254 goto out_unlock;
1255 if (attrs->contrast > 255)
1256 goto out_unlock;
1257 if (attrs->saturation > 1023)
1258 goto out_unlock;
1259
1260 overlay->color_key = attrs->color_key;
1261 overlay->brightness = attrs->brightness;
1262 overlay->contrast = attrs->contrast;
1263 overlay->saturation = attrs->saturation;
1264
1265 update_reg_attrs(overlay, overlay->regs);
1266
1267 if (attrs->flags & I915_OVERLAY_UPDATE_GAMMA) {
1268 if (IS_GEN(dev_priv, 2))
1269 goto out_unlock;
1270
1271 if (overlay->active) {
1272 ret = -EBUSY;
1273 goto out_unlock;
1274 }
1275
1276 ret = check_gamma(attrs);
1277 if (ret)
1278 goto out_unlock;
1279
1280 intel_de_write(dev_priv, OGAMC0, attrs->gamma0);
1281 intel_de_write(dev_priv, OGAMC1, attrs->gamma1);
1282 intel_de_write(dev_priv, OGAMC2, attrs->gamma2);
1283 intel_de_write(dev_priv, OGAMC3, attrs->gamma3);
1284 intel_de_write(dev_priv, OGAMC4, attrs->gamma4);
1285 intel_de_write(dev_priv, OGAMC5, attrs->gamma5);
1286 }
1287 }
1288 overlay->color_key_enabled = (attrs->flags & I915_OVERLAY_DISABLE_DEST_COLORKEY) == 0;
1289
1290 ret = 0;
1291out_unlock:
1292 drm_modeset_unlock_all(dev);
1293
1294 return ret;
1295}
1296
1297static int get_registers(struct intel_overlay *overlay, bool use_phys)
1298{
1299 struct drm_i915_private *i915 = overlay->i915;
1300 struct drm_i915_gem_object *obj;
1301 struct i915_vma *vma;
1302 int err;
1303
1304 obj = i915_gem_object_create_stolen(i915, PAGE_SIZE);
1305 if (IS_ERR(obj))
1306 obj = i915_gem_object_create_internal(i915, PAGE_SIZE);
1307 if (IS_ERR(obj))
1308 return PTR_ERR(obj);
1309
1310 vma = i915_gem_object_ggtt_pin(obj, NULL, 0, 0, PIN_MAPPABLE);
1311 if (IS_ERR(vma)) {
1312 err = PTR_ERR(vma);
1313 goto err_put_bo;
1314 }
1315
1316 if (use_phys)
1317 overlay->flip_addr = sg_dma_address(obj->mm.pages->sgl);
1318 else
1319 overlay->flip_addr = i915_ggtt_offset(vma);
1320 overlay->regs = i915_vma_pin_iomap(vma);
1321 i915_vma_unpin(vma);
1322
1323 if (IS_ERR(overlay->regs)) {
1324 err = PTR_ERR(overlay->regs);
1325 goto err_put_bo;
1326 }
1327
1328 overlay->reg_bo = obj;
1329 return 0;
1330
1331err_put_bo:
1332 i915_gem_object_put(obj);
1333 return err;
1334}
1335
1336void intel_overlay_setup(struct drm_i915_private *dev_priv)
1337{
1338 struct intel_overlay *overlay;
1339 struct intel_engine_cs *engine;
1340 int ret;
1341
1342 if (!HAS_OVERLAY(dev_priv))
1343 return;
1344
1345 engine = dev_priv->engine[RCS0];
1346 if (!engine || !engine->kernel_context)
1347 return;
1348
1349 overlay = kzalloc(sizeof(*overlay), GFP_KERNEL);
1350 if (!overlay)
1351 return;
1352
1353 overlay->i915 = dev_priv;
1354 overlay->context = engine->kernel_context;
1355 GEM_BUG_ON(!overlay->context);
1356
1357 overlay->color_key = 0x0101fe;
1358 overlay->color_key_enabled = true;
1359 overlay->brightness = -19;
1360 overlay->contrast = 75;
1361 overlay->saturation = 146;
1362
1363 i915_active_init(&overlay->last_flip,
1364 NULL, intel_overlay_last_flip_retire);
1365
1366 ret = get_registers(overlay, OVERLAY_NEEDS_PHYSICAL(dev_priv));
1367 if (ret)
1368 goto out_free;
1369
1370 memset_io(overlay->regs, 0, sizeof(struct overlay_registers));
1371 update_polyphase_filter(overlay->regs);
1372 update_reg_attrs(overlay, overlay->regs);
1373
1374 dev_priv->overlay = overlay;
1375 drm_info(&dev_priv->drm, "Initialized overlay support.\n");
1376 return;
1377
1378out_free:
1379 kfree(overlay);
1380}
1381
1382void intel_overlay_cleanup(struct drm_i915_private *dev_priv)
1383{
1384 struct intel_overlay *overlay;
1385
1386 overlay = fetch_and_zero(&dev_priv->overlay);
1387 if (!overlay)
1388 return;
1389
1390
1391
1392
1393
1394
1395 drm_WARN_ON(&dev_priv->drm, overlay->active);
1396
1397 i915_gem_object_put(overlay->reg_bo);
1398 i915_active_fini(&overlay->last_flip);
1399
1400 kfree(overlay);
1401}
1402
1403#if IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR)
1404
1405struct intel_overlay_error_state {
1406 struct overlay_registers regs;
1407 unsigned long base;
1408 u32 dovsta;
1409 u32 isr;
1410};
1411
1412struct intel_overlay_error_state *
1413intel_overlay_capture_error_state(struct drm_i915_private *dev_priv)
1414{
1415 struct intel_overlay *overlay = dev_priv->overlay;
1416 struct intel_overlay_error_state *error;
1417
1418 if (!overlay || !overlay->active)
1419 return NULL;
1420
1421 error = kmalloc(sizeof(*error), GFP_ATOMIC);
1422 if (error == NULL)
1423 return NULL;
1424
1425 error->dovsta = intel_de_read(dev_priv, DOVSTA);
1426 error->isr = intel_de_read(dev_priv, GEN2_ISR);
1427 error->base = overlay->flip_addr;
1428
1429 memcpy_fromio(&error->regs, overlay->regs, sizeof(error->regs));
1430
1431 return error;
1432}
1433
1434void
1435intel_overlay_print_error_state(struct drm_i915_error_state_buf *m,
1436 struct intel_overlay_error_state *error)
1437{
1438 i915_error_printf(m, "Overlay, status: 0x%08x, interrupt: 0x%08x\n",
1439 error->dovsta, error->isr);
1440 i915_error_printf(m, " Register file at 0x%08lx:\n",
1441 error->base);
1442
1443#define P(x) i915_error_printf(m, " " #x ": 0x%08x\n", error->regs.x)
1444 P(OBUF_0Y);
1445 P(OBUF_1Y);
1446 P(OBUF_0U);
1447 P(OBUF_0V);
1448 P(OBUF_1U);
1449 P(OBUF_1V);
1450 P(OSTRIDE);
1451 P(YRGB_VPH);
1452 P(UV_VPH);
1453 P(HORZ_PH);
1454 P(INIT_PHS);
1455 P(DWINPOS);
1456 P(DWINSZ);
1457 P(SWIDTH);
1458 P(SWIDTHSW);
1459 P(SHEIGHT);
1460 P(YRGBSCALE);
1461 P(UVSCALE);
1462 P(OCLRC0);
1463 P(OCLRC1);
1464 P(DCLRKV);
1465 P(DCLRKM);
1466 P(SCLRKVH);
1467 P(SCLRKVL);
1468 P(SCLRKEN);
1469 P(OCONFIG);
1470 P(OCMD);
1471 P(OSTART_0Y);
1472 P(OSTART_1Y);
1473 P(OSTART_0U);
1474 P(OSTART_0V);
1475 P(OSTART_1U);
1476 P(OSTART_1V);
1477 P(OTILEOFF_0Y);
1478 P(OTILEOFF_1Y);
1479 P(OTILEOFF_0U);
1480 P(OTILEOFF_0V);
1481 P(OTILEOFF_1U);
1482 P(OTILEOFF_1V);
1483 P(FASTHSCALE);
1484 P(UVSCALEV);
1485#undef P
1486}
1487
1488#endif
1489