1 /*
2  * Copyright © 2011 Intel Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21  * SOFTWARE.
22  *
23  * Authors:
24  *   Jesse Barnes <jbarnes@virtuousgeek.org>
25  *
26  * New plane/sprite handling.
27  *
28  * The older chips had a separate interface for programming plane related
29  * registers; newer ones are much simpler and we can use the new DRM plane
30  * support.
31  */
32 
33 #include <linux/string_helpers.h>
34 
35 #include <drm/drm_atomic.h>
36 #include <drm/drm_atomic_helper.h>
37 #include <drm/drm_blend.h>
38 #include <drm/drm_color_mgmt.h>
39 #include <drm/drm_crtc.h>
40 #include <drm/drm_damage_helper.h>
41 #include <drm/drm_fourcc.h>
42 #include <drm/drm_rect.h>
43 
44 #include "i915_drv.h"
45 #include "i915_reg.h"
46 #include "i915_vgpu.h"
47 #include "i9xx_plane.h"
48 #include "intel_atomic_plane.h"
49 #include "intel_crtc.h"
50 #include "intel_de.h"
51 #include "intel_display_types.h"
52 #include "intel_fb.h"
53 #include "intel_frontbuffer.h"
54 #include "intel_sprite.h"
55 #include "intel_vrr.h"
56 
57 int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state)
58 {
59 	struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev);
60 	const struct drm_framebuffer *fb = plane_state->hw.fb;
61 	struct drm_rect *src = &plane_state->uapi.src;
62 	u32 src_x, src_y, src_w, src_h, hsub, vsub;
63 	bool rotated = drm_rotation_90_or_270(plane_state->hw.rotation);
64 
65 	/*
66 	 * FIXME hsub/vsub vs. block size is a mess. Pre-tgl CCS
67 	 * abuses hsub/vsub so we can't use them here. But as they
68 	 * are limited to 32bpp RGB formats we don't actually need
69 	 * to check anything.
70 	 */
71 	if (fb->modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
72 	    fb->modifier == I915_FORMAT_MOD_Yf_TILED_CCS)
73 		return 0;
74 
75 	/*
76 	 * Hardware doesn't handle subpixel coordinates.
77 	 * Adjust to (macro)pixel boundary, but be careful not to
78 	 * increase the source viewport size, because that could
79 	 * push the downscaling factor out of bounds.
80 	 */
81 	src_x = src->x1 >> 16;
82 	src_w = drm_rect_width(src) >> 16;
83 	src_y = src->y1 >> 16;
84 	src_h = drm_rect_height(src) >> 16;
85 
86 	drm_rect_init(src, src_x << 16, src_y << 16,
87 		      src_w << 16, src_h << 16);
88 
89 	if (fb->format->format == DRM_FORMAT_RGB565 && rotated) {
90 		hsub = 2;
91 		vsub = 2;
92 	} else {
93 		hsub = fb->format->hsub;
94 		vsub = fb->format->vsub;
95 	}
96 
97 	if (rotated)
98 		hsub = vsub = max(hsub, vsub);
99 
100 	if (src_x % hsub || src_w % hsub) {
101 		drm_dbg_kms(&i915->drm, "src x/w (%u, %u) must be a multiple of %u (rotated: %s)\n",
102 			    src_x, src_w, hsub, str_yes_no(rotated));
103 		return -EINVAL;
104 	}
105 
106 	if (src_y % vsub || src_h % vsub) {
107 		drm_dbg_kms(&i915->drm, "src y/h (%u, %u) must be a multiple of %u (rotated: %s)\n",
108 			    src_y, src_h, vsub, str_yes_no(rotated));
109 		return -EINVAL;
110 	}
111 
112 	return 0;
113 }
114 
115 static void i9xx_plane_linear_gamma(u16 gamma[8])
116 {
117 	/* The points are not evenly spaced. */
118 	static const u8 in[8] = { 0, 1, 2, 4, 8, 16, 24, 32 };
119 	int i;
120 
121 	for (i = 0; i < 8; i++)
122 		gamma[i] = (in[i] << 8) / 32;
123 }
124 
125 static void
126 chv_sprite_update_csc(const struct intel_plane_state *plane_state)
127 {
128 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
129 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
130 	const struct drm_framebuffer *fb = plane_state->hw.fb;
131 	enum plane_id plane_id = plane->id;
132 	/*
133 	 * |r|   | c0 c1 c2 |   |cr|
134 	 * |g| = | c3 c4 c5 | x |y |
135 	 * |b|   | c6 c7 c8 |   |cb|
136 	 *
137 	 * Coefficients are s3.12.
138 	 *
139 	 * Cb and Cr apparently come in as signed already, and
140 	 * we always get full range data in on account of CLRC0/1.
141 	 */
142 	static const s16 csc_matrix[][9] = {
143 		/* BT.601 full range YCbCr -> full range RGB */
144 		[DRM_COLOR_YCBCR_BT601] = {
145 			 5743, 4096,     0,
146 			-2925, 4096, -1410,
147 			    0, 4096,  7258,
148 		},
149 		/* BT.709 full range YCbCr -> full range RGB */
150 		[DRM_COLOR_YCBCR_BT709] = {
151 			 6450, 4096,     0,
152 			-1917, 4096,  -767,
153 			    0, 4096,  7601,
154 		},
155 	};
156 	const s16 *csc = csc_matrix[plane_state->hw.color_encoding];
157 
158 	/* Seems RGB data bypasses the CSC always */
159 	if (!fb->format->is_yuv)
160 		return;
161 
162 	intel_de_write_fw(dev_priv, SPCSCYGOFF(plane_id),
163 			  SPCSC_OOFF(0) | SPCSC_IOFF(0));
164 	intel_de_write_fw(dev_priv, SPCSCCBOFF(plane_id),
165 			  SPCSC_OOFF(0) | SPCSC_IOFF(0));
166 	intel_de_write_fw(dev_priv, SPCSCCROFF(plane_id),
167 			  SPCSC_OOFF(0) | SPCSC_IOFF(0));
168 
169 	intel_de_write_fw(dev_priv, SPCSCC01(plane_id),
170 			  SPCSC_C1(csc[1]) | SPCSC_C0(csc[0]));
171 	intel_de_write_fw(dev_priv, SPCSCC23(plane_id),
172 			  SPCSC_C1(csc[3]) | SPCSC_C0(csc[2]));
173 	intel_de_write_fw(dev_priv, SPCSCC45(plane_id),
174 			  SPCSC_C1(csc[5]) | SPCSC_C0(csc[4]));
175 	intel_de_write_fw(dev_priv, SPCSCC67(plane_id),
176 			  SPCSC_C1(csc[7]) | SPCSC_C0(csc[6]));
177 	intel_de_write_fw(dev_priv, SPCSCC8(plane_id), SPCSC_C0(csc[8]));
178 
179 	intel_de_write_fw(dev_priv, SPCSCYGICLAMP(plane_id),
180 			  SPCSC_IMAX(1023) | SPCSC_IMIN(0));
181 	intel_de_write_fw(dev_priv, SPCSCCBICLAMP(plane_id),
182 			  SPCSC_IMAX(512) | SPCSC_IMIN(-512));
183 	intel_de_write_fw(dev_priv, SPCSCCRICLAMP(plane_id),
184 			  SPCSC_IMAX(512) | SPCSC_IMIN(-512));
185 
186 	intel_de_write_fw(dev_priv, SPCSCYGOCLAMP(plane_id),
187 			  SPCSC_OMAX(1023) | SPCSC_OMIN(0));
188 	intel_de_write_fw(dev_priv, SPCSCCBOCLAMP(plane_id),
189 			  SPCSC_OMAX(1023) | SPCSC_OMIN(0));
190 	intel_de_write_fw(dev_priv, SPCSCCROCLAMP(plane_id),
191 			  SPCSC_OMAX(1023) | SPCSC_OMIN(0));
192 }
193 
194 #define SIN_0 0
195 #define COS_0 1
196 
197 static void
198 vlv_sprite_update_clrc(const struct intel_plane_state *plane_state)
199 {
200 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
201 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
202 	const struct drm_framebuffer *fb = plane_state->hw.fb;
203 	enum pipe pipe = plane->pipe;
204 	enum plane_id plane_id = plane->id;
205 	int contrast, brightness, sh_scale, sh_sin, sh_cos;
206 
207 	if (fb->format->is_yuv &&
208 	    plane_state->hw.color_range == DRM_COLOR_YCBCR_LIMITED_RANGE) {
209 		/*
210 		 * Expand limited range to full range:
211 		 * Contrast is applied first and is used to expand Y range.
212 		 * Brightness is applied second and is used to remove the
213 		 * offset from Y. Saturation/hue is used to expand CbCr range.
214 		 */
215 		contrast = DIV_ROUND_CLOSEST(255 << 6, 235 - 16);
216 		brightness = -DIV_ROUND_CLOSEST(16 * 255, 235 - 16);
217 		sh_scale = DIV_ROUND_CLOSEST(128 << 7, 240 - 128);
218 		sh_sin = SIN_0 * sh_scale;
219 		sh_cos = COS_0 * sh_scale;
220 	} else {
221 		/* Pass-through everything. */
222 		contrast = 1 << 6;
223 		brightness = 0;
224 		sh_scale = 1 << 7;
225 		sh_sin = SIN_0 * sh_scale;
226 		sh_cos = COS_0 * sh_scale;
227 	}
228 
229 	/* FIXME these register are single buffered :( */
230 	intel_de_write_fw(dev_priv, SPCLRC0(pipe, plane_id),
231 			  SP_CONTRAST(contrast) | SP_BRIGHTNESS(brightness));
232 	intel_de_write_fw(dev_priv, SPCLRC1(pipe, plane_id),
233 			  SP_SH_SIN(sh_sin) | SP_SH_COS(sh_cos));
234 }
235 
236 static void
237 vlv_plane_ratio(const struct intel_crtc_state *crtc_state,
238 		const struct intel_plane_state *plane_state,
239 		unsigned int *num, unsigned int *den)
240 {
241 	u8 active_planes = crtc_state->active_planes & ~BIT(PLANE_CURSOR);
242 	const struct drm_framebuffer *fb = plane_state->hw.fb;
243 	unsigned int cpp = fb->format->cpp[0];
244 
245 	/*
246 	 * VLV bspec only considers cases where all three planes are
247 	 * enabled, and cases where the primary and one sprite is enabled.
248 	 * Let's assume the case with just two sprites enabled also
249 	 * maps to the latter case.
250 	 */
251 	if (hweight8(active_planes) == 3) {
252 		switch (cpp) {
253 		case 8:
254 			*num = 11;
255 			*den = 8;
256 			break;
257 		case 4:
258 			*num = 18;
259 			*den = 16;
260 			break;
261 		default:
262 			*num = 1;
263 			*den = 1;
264 			break;
265 		}
266 	} else if (hweight8(active_planes) == 2) {
267 		switch (cpp) {
268 		case 8:
269 			*num = 10;
270 			*den = 8;
271 			break;
272 		case 4:
273 			*num = 17;
274 			*den = 16;
275 			break;
276 		default:
277 			*num = 1;
278 			*den = 1;
279 			break;
280 		}
281 	} else {
282 		switch (cpp) {
283 		case 8:
284 			*num = 10;
285 			*den = 8;
286 			break;
287 		default:
288 			*num = 1;
289 			*den = 1;
290 			break;
291 		}
292 	}
293 }
294 
295 int vlv_plane_min_cdclk(const struct intel_crtc_state *crtc_state,
296 			const struct intel_plane_state *plane_state)
297 {
298 	unsigned int pixel_rate;
299 	unsigned int num, den;
300 
301 	/*
302 	 * Note that crtc_state->pixel_rate accounts for both
303 	 * horizontal and vertical panel fitter downscaling factors.
304 	 * Pre-HSW bspec tells us to only consider the horizontal
305 	 * downscaling factor here. We ignore that and just consider
306 	 * both for simplicity.
307 	 */
308 	pixel_rate = crtc_state->pixel_rate;
309 
310 	vlv_plane_ratio(crtc_state, plane_state, &num, &den);
311 
312 	return DIV_ROUND_UP(pixel_rate * num, den);
313 }
314 
315 static u32 vlv_sprite_ctl_crtc(const struct intel_crtc_state *crtc_state)
316 {
317 	u32 sprctl = 0;
318 
319 	if (crtc_state->gamma_enable)
320 		sprctl |= SP_PIPE_GAMMA_ENABLE;
321 
322 	return sprctl;
323 }
324 
325 static u32 vlv_sprite_ctl(const struct intel_crtc_state *crtc_state,
326 			  const struct intel_plane_state *plane_state)
327 {
328 	const struct drm_framebuffer *fb = plane_state->hw.fb;
329 	unsigned int rotation = plane_state->hw.rotation;
330 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
331 	u32 sprctl;
332 
333 	sprctl = SP_ENABLE;
334 
335 	switch (fb->format->format) {
336 	case DRM_FORMAT_YUYV:
337 		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YUYV;
338 		break;
339 	case DRM_FORMAT_YVYU:
340 		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YVYU;
341 		break;
342 	case DRM_FORMAT_UYVY:
343 		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_UYVY;
344 		break;
345 	case DRM_FORMAT_VYUY:
346 		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_VYUY;
347 		break;
348 	case DRM_FORMAT_C8:
349 		sprctl |= SP_FORMAT_8BPP;
350 		break;
351 	case DRM_FORMAT_RGB565:
352 		sprctl |= SP_FORMAT_BGR565;
353 		break;
354 	case DRM_FORMAT_XRGB8888:
355 		sprctl |= SP_FORMAT_BGRX8888;
356 		break;
357 	case DRM_FORMAT_ARGB8888:
358 		sprctl |= SP_FORMAT_BGRA8888;
359 		break;
360 	case DRM_FORMAT_XBGR2101010:
361 		sprctl |= SP_FORMAT_RGBX1010102;
362 		break;
363 	case DRM_FORMAT_ABGR2101010:
364 		sprctl |= SP_FORMAT_RGBA1010102;
365 		break;
366 	case DRM_FORMAT_XRGB2101010:
367 		sprctl |= SP_FORMAT_BGRX1010102;
368 		break;
369 	case DRM_FORMAT_ARGB2101010:
370 		sprctl |= SP_FORMAT_BGRA1010102;
371 		break;
372 	case DRM_FORMAT_XBGR8888:
373 		sprctl |= SP_FORMAT_RGBX8888;
374 		break;
375 	case DRM_FORMAT_ABGR8888:
376 		sprctl |= SP_FORMAT_RGBA8888;
377 		break;
378 	default:
379 		MISSING_CASE(fb->format->format);
380 		return 0;
381 	}
382 
383 	if (plane_state->hw.color_encoding == DRM_COLOR_YCBCR_BT709)
384 		sprctl |= SP_YUV_FORMAT_BT709;
385 
386 	if (fb->modifier == I915_FORMAT_MOD_X_TILED)
387 		sprctl |= SP_TILED;
388 
389 	if (rotation & DRM_MODE_ROTATE_180)
390 		sprctl |= SP_ROTATE_180;
391 
392 	if (rotation & DRM_MODE_REFLECT_X)
393 		sprctl |= SP_MIRROR;
394 
395 	if (key->flags & I915_SET_COLORKEY_SOURCE)
396 		sprctl |= SP_SOURCE_KEY;
397 
398 	return sprctl;
399 }
400 
401 static void vlv_sprite_update_gamma(const struct intel_plane_state *plane_state)
402 {
403 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
404 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
405 	const struct drm_framebuffer *fb = plane_state->hw.fb;
406 	enum pipe pipe = plane->pipe;
407 	enum plane_id plane_id = plane->id;
408 	u16 gamma[8];
409 	int i;
410 
411 	/* Seems RGB data bypasses the gamma always */
412 	if (!fb->format->is_yuv)
413 		return;
414 
415 	i9xx_plane_linear_gamma(gamma);
416 
417 	/* FIXME these register are single buffered :( */
418 	/* The two end points are implicit (0.0 and 1.0) */
419 	for (i = 1; i < 8 - 1; i++)
420 		intel_de_write_fw(dev_priv, SPGAMC(pipe, plane_id, i - 1),
421 				  gamma[i] << 16 | gamma[i] << 8 | gamma[i]);
422 }
423 
424 static void
425 vlv_sprite_update_noarm(struct intel_plane *plane,
426 			const struct intel_crtc_state *crtc_state,
427 			const struct intel_plane_state *plane_state)
428 {
429 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
430 	enum pipe pipe = plane->pipe;
431 	enum plane_id plane_id = plane->id;
432 	int crtc_x = plane_state->uapi.dst.x1;
433 	int crtc_y = plane_state->uapi.dst.y1;
434 	u32 crtc_w = drm_rect_width(&plane_state->uapi.dst);
435 	u32 crtc_h = drm_rect_height(&plane_state->uapi.dst);
436 
437 	intel_de_write_fw(dev_priv, SPSTRIDE(pipe, plane_id),
438 			  plane_state->view.color_plane[0].mapping_stride);
439 	intel_de_write_fw(dev_priv, SPPOS(pipe, plane_id),
440 			  SP_POS_Y(crtc_y) | SP_POS_X(crtc_x));
441 	intel_de_write_fw(dev_priv, SPSIZE(pipe, plane_id),
442 			  SP_HEIGHT(crtc_h - 1) | SP_WIDTH(crtc_w - 1));
443 }
444 
445 static void
446 vlv_sprite_update_arm(struct intel_plane *plane,
447 		      const struct intel_crtc_state *crtc_state,
448 		      const struct intel_plane_state *plane_state)
449 {
450 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
451 	enum pipe pipe = plane->pipe;
452 	enum plane_id plane_id = plane->id;
453 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
454 	u32 sprsurf_offset = plane_state->view.color_plane[0].offset;
455 	u32 x = plane_state->view.color_plane[0].x;
456 	u32 y = plane_state->view.color_plane[0].y;
457 	u32 sprctl, linear_offset;
458 
459 	sprctl = plane_state->ctl | vlv_sprite_ctl_crtc(crtc_state);
460 
461 	linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
462 
463 	if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B)
464 		chv_sprite_update_csc(plane_state);
465 
466 	if (key->flags) {
467 		intel_de_write_fw(dev_priv, SPKEYMINVAL(pipe, plane_id),
468 				  key->min_value);
469 		intel_de_write_fw(dev_priv, SPKEYMSK(pipe, plane_id),
470 				  key->channel_mask);
471 		intel_de_write_fw(dev_priv, SPKEYMAXVAL(pipe, plane_id),
472 				  key->max_value);
473 	}
474 
475 	intel_de_write_fw(dev_priv, SPCONSTALPHA(pipe, plane_id), 0);
476 
477 	intel_de_write_fw(dev_priv, SPLINOFF(pipe, plane_id), linear_offset);
478 	intel_de_write_fw(dev_priv, SPTILEOFF(pipe, plane_id),
479 			  SP_OFFSET_Y(y) | SP_OFFSET_X(x));
480 
481 	/*
482 	 * The control register self-arms if the plane was previously
483 	 * disabled. Try to make the plane enable atomic by writing
484 	 * the control register just before the surface register.
485 	 */
486 	intel_de_write_fw(dev_priv, SPCNTR(pipe, plane_id), sprctl);
487 	intel_de_write_fw(dev_priv, SPSURF(pipe, plane_id),
488 			  intel_plane_ggtt_offset(plane_state) + sprsurf_offset);
489 
490 	vlv_sprite_update_clrc(plane_state);
491 	vlv_sprite_update_gamma(plane_state);
492 }
493 
494 static void
495 vlv_sprite_disable_arm(struct intel_plane *plane,
496 		       const struct intel_crtc_state *crtc_state)
497 {
498 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
499 	enum pipe pipe = plane->pipe;
500 	enum plane_id plane_id = plane->id;
501 
502 	intel_de_write_fw(dev_priv, SPCNTR(pipe, plane_id), 0);
503 	intel_de_write_fw(dev_priv, SPSURF(pipe, plane_id), 0);
504 }
505 
506 static bool
507 vlv_sprite_get_hw_state(struct intel_plane *plane,
508 			enum pipe *pipe)
509 {
510 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
511 	enum intel_display_power_domain power_domain;
512 	enum plane_id plane_id = plane->id;
513 	intel_wakeref_t wakeref;
514 	bool ret;
515 
516 	power_domain = POWER_DOMAIN_PIPE(plane->pipe);
517 	wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain);
518 	if (!wakeref)
519 		return false;
520 
521 	ret = intel_de_read(dev_priv, SPCNTR(plane->pipe, plane_id)) & SP_ENABLE;
522 
523 	*pipe = plane->pipe;
524 
525 	intel_display_power_put(dev_priv, power_domain, wakeref);
526 
527 	return ret;
528 }
529 
530 static void ivb_plane_ratio(const struct intel_crtc_state *crtc_state,
531 			    const struct intel_plane_state *plane_state,
532 			    unsigned int *num, unsigned int *den)
533 {
534 	u8 active_planes = crtc_state->active_planes & ~BIT(PLANE_CURSOR);
535 	const struct drm_framebuffer *fb = plane_state->hw.fb;
536 	unsigned int cpp = fb->format->cpp[0];
537 
538 	if (hweight8(active_planes) == 2) {
539 		switch (cpp) {
540 		case 8:
541 			*num = 10;
542 			*den = 8;
543 			break;
544 		case 4:
545 			*num = 17;
546 			*den = 16;
547 			break;
548 		default:
549 			*num = 1;
550 			*den = 1;
551 			break;
552 		}
553 	} else {
554 		switch (cpp) {
555 		case 8:
556 			*num = 9;
557 			*den = 8;
558 			break;
559 		default:
560 			*num = 1;
561 			*den = 1;
562 			break;
563 		}
564 	}
565 }
566 
567 static void ivb_plane_ratio_scaling(const struct intel_crtc_state *crtc_state,
568 				    const struct intel_plane_state *plane_state,
569 				    unsigned int *num, unsigned int *den)
570 {
571 	const struct drm_framebuffer *fb = plane_state->hw.fb;
572 	unsigned int cpp = fb->format->cpp[0];
573 
574 	switch (cpp) {
575 	case 8:
576 		*num = 12;
577 		*den = 8;
578 		break;
579 	case 4:
580 		*num = 19;
581 		*den = 16;
582 		break;
583 	case 2:
584 		*num = 33;
585 		*den = 32;
586 		break;
587 	default:
588 		*num = 1;
589 		*den = 1;
590 		break;
591 	}
592 }
593 
594 int ivb_plane_min_cdclk(const struct intel_crtc_state *crtc_state,
595 			const struct intel_plane_state *plane_state)
596 {
597 	unsigned int pixel_rate;
598 	unsigned int num, den;
599 
600 	/*
601 	 * Note that crtc_state->pixel_rate accounts for both
602 	 * horizontal and vertical panel fitter downscaling factors.
603 	 * Pre-HSW bspec tells us to only consider the horizontal
604 	 * downscaling factor here. We ignore that and just consider
605 	 * both for simplicity.
606 	 */
607 	pixel_rate = crtc_state->pixel_rate;
608 
609 	ivb_plane_ratio(crtc_state, plane_state, &num, &den);
610 
611 	return DIV_ROUND_UP(pixel_rate * num, den);
612 }
613 
614 static int ivb_sprite_min_cdclk(const struct intel_crtc_state *crtc_state,
615 				const struct intel_plane_state *plane_state)
616 {
617 	unsigned int src_w, dst_w, pixel_rate;
618 	unsigned int num, den;
619 
620 	/*
621 	 * Note that crtc_state->pixel_rate accounts for both
622 	 * horizontal and vertical panel fitter downscaling factors.
623 	 * Pre-HSW bspec tells us to only consider the horizontal
624 	 * downscaling factor here. We ignore that and just consider
625 	 * both for simplicity.
626 	 */
627 	pixel_rate = crtc_state->pixel_rate;
628 
629 	src_w = drm_rect_width(&plane_state->uapi.src) >> 16;
630 	dst_w = drm_rect_width(&plane_state->uapi.dst);
631 
632 	if (src_w != dst_w)
633 		ivb_plane_ratio_scaling(crtc_state, plane_state, &num, &den);
634 	else
635 		ivb_plane_ratio(crtc_state, plane_state, &num, &den);
636 
637 	/* Horizontal downscaling limits the maximum pixel rate */
638 	dst_w = min(src_w, dst_w);
639 
640 	return DIV_ROUND_UP_ULL(mul_u32_u32(pixel_rate, num * src_w),
641 				den * dst_w);
642 }
643 
644 static void hsw_plane_ratio(const struct intel_crtc_state *crtc_state,
645 			    const struct intel_plane_state *plane_state,
646 			    unsigned int *num, unsigned int *den)
647 {
648 	u8 active_planes = crtc_state->active_planes & ~BIT(PLANE_CURSOR);
649 	const struct drm_framebuffer *fb = plane_state->hw.fb;
650 	unsigned int cpp = fb->format->cpp[0];
651 
652 	if (hweight8(active_planes) == 2) {
653 		switch (cpp) {
654 		case 8:
655 			*num = 10;
656 			*den = 8;
657 			break;
658 		default:
659 			*num = 1;
660 			*den = 1;
661 			break;
662 		}
663 	} else {
664 		switch (cpp) {
665 		case 8:
666 			*num = 9;
667 			*den = 8;
668 			break;
669 		default:
670 			*num = 1;
671 			*den = 1;
672 			break;
673 		}
674 	}
675 }
676 
677 int hsw_plane_min_cdclk(const struct intel_crtc_state *crtc_state,
678 			const struct intel_plane_state *plane_state)
679 {
680 	unsigned int pixel_rate = crtc_state->pixel_rate;
681 	unsigned int num, den;
682 
683 	hsw_plane_ratio(crtc_state, plane_state, &num, &den);
684 
685 	return DIV_ROUND_UP(pixel_rate * num, den);
686 }
687 
688 static u32 ivb_sprite_ctl_crtc(const struct intel_crtc_state *crtc_state)
689 {
690 	u32 sprctl = 0;
691 
692 	if (crtc_state->gamma_enable)
693 		sprctl |= SPRITE_PIPE_GAMMA_ENABLE;
694 
695 	if (crtc_state->csc_enable)
696 		sprctl |= SPRITE_PIPE_CSC_ENABLE;
697 
698 	return sprctl;
699 }
700 
701 static bool ivb_need_sprite_gamma(const struct intel_plane_state *plane_state)
702 {
703 	struct drm_i915_private *dev_priv =
704 		to_i915(plane_state->uapi.plane->dev);
705 	const struct drm_framebuffer *fb = plane_state->hw.fb;
706 
707 	return fb->format->cpp[0] == 8 &&
708 		(IS_IVYBRIDGE(dev_priv) || IS_HASWELL(dev_priv));
709 }
710 
711 static u32 ivb_sprite_ctl(const struct intel_crtc_state *crtc_state,
712 			  const struct intel_plane_state *plane_state)
713 {
714 	struct drm_i915_private *dev_priv =
715 		to_i915(plane_state->uapi.plane->dev);
716 	const struct drm_framebuffer *fb = plane_state->hw.fb;
717 	unsigned int rotation = plane_state->hw.rotation;
718 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
719 	u32 sprctl;
720 
721 	sprctl = SPRITE_ENABLE;
722 
723 	if (IS_IVYBRIDGE(dev_priv))
724 		sprctl |= SPRITE_TRICKLE_FEED_DISABLE;
725 
726 	switch (fb->format->format) {
727 	case DRM_FORMAT_XBGR8888:
728 		sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
729 		break;
730 	case DRM_FORMAT_XRGB8888:
731 		sprctl |= SPRITE_FORMAT_RGBX888;
732 		break;
733 	case DRM_FORMAT_XBGR2101010:
734 		sprctl |= SPRITE_FORMAT_RGBX101010 | SPRITE_RGB_ORDER_RGBX;
735 		break;
736 	case DRM_FORMAT_XRGB2101010:
737 		sprctl |= SPRITE_FORMAT_RGBX101010;
738 		break;
739 	case DRM_FORMAT_XBGR16161616F:
740 		sprctl |= SPRITE_FORMAT_RGBX161616 | SPRITE_RGB_ORDER_RGBX;
741 		break;
742 	case DRM_FORMAT_XRGB16161616F:
743 		sprctl |= SPRITE_FORMAT_RGBX161616;
744 		break;
745 	case DRM_FORMAT_YUYV:
746 		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YUYV;
747 		break;
748 	case DRM_FORMAT_YVYU:
749 		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YVYU;
750 		break;
751 	case DRM_FORMAT_UYVY:
752 		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_UYVY;
753 		break;
754 	case DRM_FORMAT_VYUY:
755 		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_VYUY;
756 		break;
757 	default:
758 		MISSING_CASE(fb->format->format);
759 		return 0;
760 	}
761 
762 	if (!ivb_need_sprite_gamma(plane_state))
763 		sprctl |= SPRITE_PLANE_GAMMA_DISABLE;
764 
765 	if (plane_state->hw.color_encoding == DRM_COLOR_YCBCR_BT709)
766 		sprctl |= SPRITE_YUV_TO_RGB_CSC_FORMAT_BT709;
767 
768 	if (plane_state->hw.color_range == DRM_COLOR_YCBCR_FULL_RANGE)
769 		sprctl |= SPRITE_YUV_RANGE_CORRECTION_DISABLE;
770 
771 	if (fb->modifier == I915_FORMAT_MOD_X_TILED)
772 		sprctl |= SPRITE_TILED;
773 
774 	if (rotation & DRM_MODE_ROTATE_180)
775 		sprctl |= SPRITE_ROTATE_180;
776 
777 	if (key->flags & I915_SET_COLORKEY_DESTINATION)
778 		sprctl |= SPRITE_DEST_KEY;
779 	else if (key->flags & I915_SET_COLORKEY_SOURCE)
780 		sprctl |= SPRITE_SOURCE_KEY;
781 
782 	return sprctl;
783 }
784 
785 static void ivb_sprite_linear_gamma(const struct intel_plane_state *plane_state,
786 				    u16 gamma[18])
787 {
788 	int scale, i;
789 
790 	/*
791 	 * WaFP16GammaEnabling:ivb,hsw
792 	 * "Workaround : When using the 64-bit format, the sprite output
793 	 *  on each color channel has one quarter amplitude. It can be
794 	 *  brought up to full amplitude by using sprite internal gamma
795 	 *  correction, pipe gamma correction, or pipe color space
796 	 *  conversion to multiply the sprite output by four."
797 	 */
798 	scale = 4;
799 
800 	for (i = 0; i < 16; i++)
801 		gamma[i] = min((scale * i << 10) / 16, (1 << 10) - 1);
802 
803 	gamma[i] = min((scale * i << 10) / 16, 1 << 10);
804 	i++;
805 
806 	gamma[i] = 3 << 10;
807 	i++;
808 }
809 
810 static void ivb_sprite_update_gamma(const struct intel_plane_state *plane_state)
811 {
812 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
813 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
814 	enum pipe pipe = plane->pipe;
815 	u16 gamma[18];
816 	int i;
817 
818 	if (!ivb_need_sprite_gamma(plane_state))
819 		return;
820 
821 	ivb_sprite_linear_gamma(plane_state, gamma);
822 
823 	/* FIXME these register are single buffered :( */
824 	for (i = 0; i < 16; i++)
825 		intel_de_write_fw(dev_priv, SPRGAMC(pipe, i),
826 				  gamma[i] << 20 | gamma[i] << 10 | gamma[i]);
827 
828 	intel_de_write_fw(dev_priv, SPRGAMC16(pipe, 0), gamma[i]);
829 	intel_de_write_fw(dev_priv, SPRGAMC16(pipe, 1), gamma[i]);
830 	intel_de_write_fw(dev_priv, SPRGAMC16(pipe, 2), gamma[i]);
831 	i++;
832 
833 	intel_de_write_fw(dev_priv, SPRGAMC17(pipe, 0), gamma[i]);
834 	intel_de_write_fw(dev_priv, SPRGAMC17(pipe, 1), gamma[i]);
835 	intel_de_write_fw(dev_priv, SPRGAMC17(pipe, 2), gamma[i]);
836 	i++;
837 }
838 
839 static void
840 ivb_sprite_update_noarm(struct intel_plane *plane,
841 			const struct intel_crtc_state *crtc_state,
842 			const struct intel_plane_state *plane_state)
843 {
844 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
845 	enum pipe pipe = plane->pipe;
846 	int crtc_x = plane_state->uapi.dst.x1;
847 	int crtc_y = plane_state->uapi.dst.y1;
848 	u32 crtc_w = drm_rect_width(&plane_state->uapi.dst);
849 	u32 crtc_h = drm_rect_height(&plane_state->uapi.dst);
850 	u32 src_w = drm_rect_width(&plane_state->uapi.src) >> 16;
851 	u32 src_h = drm_rect_height(&plane_state->uapi.src) >> 16;
852 	u32 sprscale = 0;
853 
854 	if (crtc_w != src_w || crtc_h != src_h)
855 		sprscale = SPRITE_SCALE_ENABLE |
856 			SPRITE_SRC_WIDTH(src_w - 1) |
857 			SPRITE_SRC_HEIGHT(src_h - 1);
858 
859 	intel_de_write_fw(dev_priv, SPRSTRIDE(pipe),
860 			  plane_state->view.color_plane[0].mapping_stride);
861 	intel_de_write_fw(dev_priv, SPRPOS(pipe),
862 			  SPRITE_POS_Y(crtc_y) | SPRITE_POS_X(crtc_x));
863 	intel_de_write_fw(dev_priv, SPRSIZE(pipe),
864 			  SPRITE_HEIGHT(crtc_h - 1) | SPRITE_WIDTH(crtc_w - 1));
865 	if (IS_IVYBRIDGE(dev_priv))
866 		intel_de_write_fw(dev_priv, SPRSCALE(pipe), sprscale);
867 }
868 
869 static void
870 ivb_sprite_update_arm(struct intel_plane *plane,
871 		      const struct intel_crtc_state *crtc_state,
872 		      const struct intel_plane_state *plane_state)
873 {
874 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
875 	enum pipe pipe = plane->pipe;
876 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
877 	u32 sprsurf_offset = plane_state->view.color_plane[0].offset;
878 	u32 x = plane_state->view.color_plane[0].x;
879 	u32 y = plane_state->view.color_plane[0].y;
880 	u32 sprctl, linear_offset;
881 
882 	sprctl = plane_state->ctl | ivb_sprite_ctl_crtc(crtc_state);
883 
884 	linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
885 
886 	if (key->flags) {
887 		intel_de_write_fw(dev_priv, SPRKEYVAL(pipe), key->min_value);
888 		intel_de_write_fw(dev_priv, SPRKEYMSK(pipe),
889 				  key->channel_mask);
890 		intel_de_write_fw(dev_priv, SPRKEYMAX(pipe), key->max_value);
891 	}
892 
893 	/* HSW consolidates SPRTILEOFF and SPRLINOFF into a single SPROFFSET
894 	 * register */
895 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
896 		intel_de_write_fw(dev_priv, SPROFFSET(pipe),
897 				  SPRITE_OFFSET_Y(y) | SPRITE_OFFSET_X(x));
898 	} else {
899 		intel_de_write_fw(dev_priv, SPRLINOFF(pipe), linear_offset);
900 		intel_de_write_fw(dev_priv, SPRTILEOFF(pipe),
901 				  SPRITE_OFFSET_Y(y) | SPRITE_OFFSET_X(x));
902 	}
903 
904 	/*
905 	 * The control register self-arms if the plane was previously
906 	 * disabled. Try to make the plane enable atomic by writing
907 	 * the control register just before the surface register.
908 	 */
909 	intel_de_write_fw(dev_priv, SPRCTL(pipe), sprctl);
910 	intel_de_write_fw(dev_priv, SPRSURF(pipe),
911 			  intel_plane_ggtt_offset(plane_state) + sprsurf_offset);
912 
913 	ivb_sprite_update_gamma(plane_state);
914 }
915 
916 static void
917 ivb_sprite_disable_arm(struct intel_plane *plane,
918 		       const struct intel_crtc_state *crtc_state)
919 {
920 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
921 	enum pipe pipe = plane->pipe;
922 
923 	intel_de_write_fw(dev_priv, SPRCTL(pipe), 0);
924 	/* Disable the scaler */
925 	if (IS_IVYBRIDGE(dev_priv))
926 		intel_de_write_fw(dev_priv, SPRSCALE(pipe), 0);
927 	intel_de_write_fw(dev_priv, SPRSURF(pipe), 0);
928 }
929 
930 static bool
931 ivb_sprite_get_hw_state(struct intel_plane *plane,
932 			enum pipe *pipe)
933 {
934 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
935 	enum intel_display_power_domain power_domain;
936 	intel_wakeref_t wakeref;
937 	bool ret;
938 
939 	power_domain = POWER_DOMAIN_PIPE(plane->pipe);
940 	wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain);
941 	if (!wakeref)
942 		return false;
943 
944 	ret =  intel_de_read(dev_priv, SPRCTL(plane->pipe)) & SPRITE_ENABLE;
945 
946 	*pipe = plane->pipe;
947 
948 	intel_display_power_put(dev_priv, power_domain, wakeref);
949 
950 	return ret;
951 }
952 
953 static int g4x_sprite_min_cdclk(const struct intel_crtc_state *crtc_state,
954 				const struct intel_plane_state *plane_state)
955 {
956 	const struct drm_framebuffer *fb = plane_state->hw.fb;
957 	unsigned int hscale, pixel_rate;
958 	unsigned int limit, decimate;
959 
960 	/*
961 	 * Note that crtc_state->pixel_rate accounts for both
962 	 * horizontal and vertical panel fitter downscaling factors.
963 	 * Pre-HSW bspec tells us to only consider the horizontal
964 	 * downscaling factor here. We ignore that and just consider
965 	 * both for simplicity.
966 	 */
967 	pixel_rate = crtc_state->pixel_rate;
968 
969 	/* Horizontal downscaling limits the maximum pixel rate */
970 	hscale = drm_rect_calc_hscale(&plane_state->uapi.src,
971 				      &plane_state->uapi.dst,
972 				      0, INT_MAX);
973 	hscale = max(hscale, 0x10000u);
974 
975 	/* Decimation steps at 2x,4x,8x,16x */
976 	decimate = ilog2(hscale >> 16);
977 	hscale >>= decimate;
978 
979 	/* Starting limit is 90% of cdclk */
980 	limit = 9;
981 
982 	/* -10% per decimation step */
983 	limit -= decimate;
984 
985 	/* -10% for RGB */
986 	if (!fb->format->is_yuv)
987 		limit--;
988 
989 	/*
990 	 * We should also do -10% if sprite scaling is enabled
991 	 * on the other pipe, but we can't really check for that,
992 	 * so we ignore it.
993 	 */
994 
995 	return DIV_ROUND_UP_ULL(mul_u32_u32(pixel_rate, 10 * hscale),
996 				limit << 16);
997 }
998 
999 static unsigned int
1000 g4x_sprite_max_stride(struct intel_plane *plane,
1001 		      u32 pixel_format, u64 modifier,
1002 		      unsigned int rotation)
1003 {
1004 	const struct drm_format_info *info = drm_format_info(pixel_format);
1005 	int cpp = info->cpp[0];
1006 
1007 	/* Limit to 4k pixels to guarantee TILEOFF.x doesn't get too big. */
1008 	if (modifier == I915_FORMAT_MOD_X_TILED)
1009 		return min(4096 * cpp, 16 * 1024);
1010 	else
1011 		return 16 * 1024;
1012 }
1013 
1014 static unsigned int
1015 hsw_sprite_max_stride(struct intel_plane *plane,
1016 		      u32 pixel_format, u64 modifier,
1017 		      unsigned int rotation)
1018 {
1019 	const struct drm_format_info *info = drm_format_info(pixel_format);
1020 	int cpp = info->cpp[0];
1021 
1022 	/* Limit to 8k pixels to guarantee OFFSET.x doesn't get too big. */
1023 	return min(8192 * cpp, 16 * 1024);
1024 }
1025 
1026 static u32 g4x_sprite_ctl_crtc(const struct intel_crtc_state *crtc_state)
1027 {
1028 	u32 dvscntr = 0;
1029 
1030 	if (crtc_state->gamma_enable)
1031 		dvscntr |= DVS_PIPE_GAMMA_ENABLE;
1032 
1033 	if (crtc_state->csc_enable)
1034 		dvscntr |= DVS_PIPE_CSC_ENABLE;
1035 
1036 	return dvscntr;
1037 }
1038 
1039 static u32 g4x_sprite_ctl(const struct intel_crtc_state *crtc_state,
1040 			  const struct intel_plane_state *plane_state)
1041 {
1042 	struct drm_i915_private *dev_priv =
1043 		to_i915(plane_state->uapi.plane->dev);
1044 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1045 	unsigned int rotation = plane_state->hw.rotation;
1046 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
1047 	u32 dvscntr;
1048 
1049 	dvscntr = DVS_ENABLE;
1050 
1051 	if (IS_SANDYBRIDGE(dev_priv))
1052 		dvscntr |= DVS_TRICKLE_FEED_DISABLE;
1053 
1054 	switch (fb->format->format) {
1055 	case DRM_FORMAT_XBGR8888:
1056 		dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_XBGR;
1057 		break;
1058 	case DRM_FORMAT_XRGB8888:
1059 		dvscntr |= DVS_FORMAT_RGBX888;
1060 		break;
1061 	case DRM_FORMAT_XBGR2101010:
1062 		dvscntr |= DVS_FORMAT_RGBX101010 | DVS_RGB_ORDER_XBGR;
1063 		break;
1064 	case DRM_FORMAT_XRGB2101010:
1065 		dvscntr |= DVS_FORMAT_RGBX101010;
1066 		break;
1067 	case DRM_FORMAT_XBGR16161616F:
1068 		dvscntr |= DVS_FORMAT_RGBX161616 | DVS_RGB_ORDER_XBGR;
1069 		break;
1070 	case DRM_FORMAT_XRGB16161616F:
1071 		dvscntr |= DVS_FORMAT_RGBX161616;
1072 		break;
1073 	case DRM_FORMAT_YUYV:
1074 		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YUYV;
1075 		break;
1076 	case DRM_FORMAT_YVYU:
1077 		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YVYU;
1078 		break;
1079 	case DRM_FORMAT_UYVY:
1080 		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_UYVY;
1081 		break;
1082 	case DRM_FORMAT_VYUY:
1083 		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_VYUY;
1084 		break;
1085 	default:
1086 		MISSING_CASE(fb->format->format);
1087 		return 0;
1088 	}
1089 
1090 	if (plane_state->hw.color_encoding == DRM_COLOR_YCBCR_BT709)
1091 		dvscntr |= DVS_YUV_FORMAT_BT709;
1092 
1093 	if (plane_state->hw.color_range == DRM_COLOR_YCBCR_FULL_RANGE)
1094 		dvscntr |= DVS_YUV_RANGE_CORRECTION_DISABLE;
1095 
1096 	if (fb->modifier == I915_FORMAT_MOD_X_TILED)
1097 		dvscntr |= DVS_TILED;
1098 
1099 	if (rotation & DRM_MODE_ROTATE_180)
1100 		dvscntr |= DVS_ROTATE_180;
1101 
1102 	if (key->flags & I915_SET_COLORKEY_DESTINATION)
1103 		dvscntr |= DVS_DEST_KEY;
1104 	else if (key->flags & I915_SET_COLORKEY_SOURCE)
1105 		dvscntr |= DVS_SOURCE_KEY;
1106 
1107 	return dvscntr;
1108 }
1109 
1110 static void g4x_sprite_update_gamma(const struct intel_plane_state *plane_state)
1111 {
1112 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
1113 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1114 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1115 	enum pipe pipe = plane->pipe;
1116 	u16 gamma[8];
1117 	int i;
1118 
1119 	/* Seems RGB data bypasses the gamma always */
1120 	if (!fb->format->is_yuv)
1121 		return;
1122 
1123 	i9xx_plane_linear_gamma(gamma);
1124 
1125 	/* FIXME these register are single buffered :( */
1126 	/* The two end points are implicit (0.0 and 1.0) */
1127 	for (i = 1; i < 8 - 1; i++)
1128 		intel_de_write_fw(dev_priv, DVSGAMC_G4X(pipe, i - 1),
1129 				  gamma[i] << 16 | gamma[i] << 8 | gamma[i]);
1130 }
1131 
1132 static void ilk_sprite_linear_gamma(u16 gamma[17])
1133 {
1134 	int i;
1135 
1136 	for (i = 0; i < 17; i++)
1137 		gamma[i] = (i << 10) / 16;
1138 }
1139 
1140 static void ilk_sprite_update_gamma(const struct intel_plane_state *plane_state)
1141 {
1142 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
1143 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1144 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1145 	enum pipe pipe = plane->pipe;
1146 	u16 gamma[17];
1147 	int i;
1148 
1149 	/* Seems RGB data bypasses the gamma always */
1150 	if (!fb->format->is_yuv)
1151 		return;
1152 
1153 	ilk_sprite_linear_gamma(gamma);
1154 
1155 	/* FIXME these register are single buffered :( */
1156 	for (i = 0; i < 16; i++)
1157 		intel_de_write_fw(dev_priv, DVSGAMC_ILK(pipe, i),
1158 				  gamma[i] << 20 | gamma[i] << 10 | gamma[i]);
1159 
1160 	intel_de_write_fw(dev_priv, DVSGAMCMAX_ILK(pipe, 0), gamma[i]);
1161 	intel_de_write_fw(dev_priv, DVSGAMCMAX_ILK(pipe, 1), gamma[i]);
1162 	intel_de_write_fw(dev_priv, DVSGAMCMAX_ILK(pipe, 2), gamma[i]);
1163 	i++;
1164 }
1165 
1166 static void
1167 g4x_sprite_update_noarm(struct intel_plane *plane,
1168 			const struct intel_crtc_state *crtc_state,
1169 			const struct intel_plane_state *plane_state)
1170 {
1171 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1172 	enum pipe pipe = plane->pipe;
1173 	int crtc_x = plane_state->uapi.dst.x1;
1174 	int crtc_y = plane_state->uapi.dst.y1;
1175 	u32 crtc_w = drm_rect_width(&plane_state->uapi.dst);
1176 	u32 crtc_h = drm_rect_height(&plane_state->uapi.dst);
1177 	u32 src_w = drm_rect_width(&plane_state->uapi.src) >> 16;
1178 	u32 src_h = drm_rect_height(&plane_state->uapi.src) >> 16;
1179 	u32 dvsscale = 0;
1180 
1181 	if (crtc_w != src_w || crtc_h != src_h)
1182 		dvsscale = DVS_SCALE_ENABLE |
1183 			DVS_SRC_WIDTH(src_w - 1) |
1184 			DVS_SRC_HEIGHT(src_h - 1);
1185 
1186 	intel_de_write_fw(dev_priv, DVSSTRIDE(pipe),
1187 			  plane_state->view.color_plane[0].mapping_stride);
1188 	intel_de_write_fw(dev_priv, DVSPOS(pipe),
1189 			  DVS_POS_Y(crtc_y) | DVS_POS_X(crtc_x));
1190 	intel_de_write_fw(dev_priv, DVSSIZE(pipe),
1191 			  DVS_HEIGHT(crtc_h - 1) | DVS_WIDTH(crtc_w - 1));
1192 	intel_de_write_fw(dev_priv, DVSSCALE(pipe), dvsscale);
1193 }
1194 
1195 static void
1196 g4x_sprite_update_arm(struct intel_plane *plane,
1197 		      const struct intel_crtc_state *crtc_state,
1198 		      const struct intel_plane_state *plane_state)
1199 {
1200 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1201 	enum pipe pipe = plane->pipe;
1202 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
1203 	u32 dvssurf_offset = plane_state->view.color_plane[0].offset;
1204 	u32 x = plane_state->view.color_plane[0].x;
1205 	u32 y = plane_state->view.color_plane[0].y;
1206 	u32 dvscntr, linear_offset;
1207 
1208 	dvscntr = plane_state->ctl | g4x_sprite_ctl_crtc(crtc_state);
1209 
1210 	linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
1211 
1212 	if (key->flags) {
1213 		intel_de_write_fw(dev_priv, DVSKEYVAL(pipe), key->min_value);
1214 		intel_de_write_fw(dev_priv, DVSKEYMSK(pipe),
1215 				  key->channel_mask);
1216 		intel_de_write_fw(dev_priv, DVSKEYMAX(pipe), key->max_value);
1217 	}
1218 
1219 	intel_de_write_fw(dev_priv, DVSLINOFF(pipe), linear_offset);
1220 	intel_de_write_fw(dev_priv, DVSTILEOFF(pipe), (y << 16) | x);
1221 
1222 	/*
1223 	 * The control register self-arms if the plane was previously
1224 	 * disabled. Try to make the plane enable atomic by writing
1225 	 * the control register just before the surface register.
1226 	 */
1227 	intel_de_write_fw(dev_priv, DVSCNTR(pipe), dvscntr);
1228 	intel_de_write_fw(dev_priv, DVSSURF(pipe),
1229 			  intel_plane_ggtt_offset(plane_state) + dvssurf_offset);
1230 
1231 	if (IS_G4X(dev_priv))
1232 		g4x_sprite_update_gamma(plane_state);
1233 	else
1234 		ilk_sprite_update_gamma(plane_state);
1235 }
1236 
1237 static void
1238 g4x_sprite_disable_arm(struct intel_plane *plane,
1239 		       const struct intel_crtc_state *crtc_state)
1240 {
1241 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1242 	enum pipe pipe = plane->pipe;
1243 
1244 	intel_de_write_fw(dev_priv, DVSCNTR(pipe), 0);
1245 	/* Disable the scaler */
1246 	intel_de_write_fw(dev_priv, DVSSCALE(pipe), 0);
1247 	intel_de_write_fw(dev_priv, DVSSURF(pipe), 0);
1248 }
1249 
1250 static bool
1251 g4x_sprite_get_hw_state(struct intel_plane *plane,
1252 			enum pipe *pipe)
1253 {
1254 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1255 	enum intel_display_power_domain power_domain;
1256 	intel_wakeref_t wakeref;
1257 	bool ret;
1258 
1259 	power_domain = POWER_DOMAIN_PIPE(plane->pipe);
1260 	wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain);
1261 	if (!wakeref)
1262 		return false;
1263 
1264 	ret = intel_de_read(dev_priv, DVSCNTR(plane->pipe)) & DVS_ENABLE;
1265 
1266 	*pipe = plane->pipe;
1267 
1268 	intel_display_power_put(dev_priv, power_domain, wakeref);
1269 
1270 	return ret;
1271 }
1272 
1273 static bool g4x_fb_scalable(const struct drm_framebuffer *fb)
1274 {
1275 	if (!fb)
1276 		return false;
1277 
1278 	switch (fb->format->format) {
1279 	case DRM_FORMAT_C8:
1280 	case DRM_FORMAT_XRGB16161616F:
1281 	case DRM_FORMAT_ARGB16161616F:
1282 	case DRM_FORMAT_XBGR16161616F:
1283 	case DRM_FORMAT_ABGR16161616F:
1284 		return false;
1285 	default:
1286 		return true;
1287 	}
1288 }
1289 
1290 static int
1291 g4x_sprite_check_scaling(struct intel_crtc_state *crtc_state,
1292 			 struct intel_plane_state *plane_state)
1293 {
1294 	struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev);
1295 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1296 	const struct drm_rect *src = &plane_state->uapi.src;
1297 	const struct drm_rect *dst = &plane_state->uapi.dst;
1298 	int src_x, src_w, src_h, crtc_w, crtc_h;
1299 	const struct drm_display_mode *adjusted_mode =
1300 		&crtc_state->hw.adjusted_mode;
1301 	unsigned int stride = plane_state->view.color_plane[0].mapping_stride;
1302 	unsigned int cpp = fb->format->cpp[0];
1303 	unsigned int width_bytes;
1304 	int min_width, min_height;
1305 
1306 	crtc_w = drm_rect_width(dst);
1307 	crtc_h = drm_rect_height(dst);
1308 
1309 	src_x = src->x1 >> 16;
1310 	src_w = drm_rect_width(src) >> 16;
1311 	src_h = drm_rect_height(src) >> 16;
1312 
1313 	if (src_w == crtc_w && src_h == crtc_h)
1314 		return 0;
1315 
1316 	min_width = 3;
1317 
1318 	if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
1319 		if (src_h & 1) {
1320 			drm_dbg_kms(&i915->drm, "Source height must be even with interlaced modes\n");
1321 			return -EINVAL;
1322 		}
1323 		min_height = 6;
1324 	} else {
1325 		min_height = 3;
1326 	}
1327 
1328 	width_bytes = ((src_x * cpp) & 63) + src_w * cpp;
1329 
1330 	if (src_w < min_width || src_h < min_height ||
1331 	    src_w > 2048 || src_h > 2048) {
1332 		drm_dbg_kms(&i915->drm, "Source dimensions (%dx%d) exceed hardware limits (%dx%d - %dx%d)\n",
1333 			    src_w, src_h, min_width, min_height, 2048, 2048);
1334 		return -EINVAL;
1335 	}
1336 
1337 	if (width_bytes > 4096) {
1338 		drm_dbg_kms(&i915->drm, "Fetch width (%d) exceeds hardware max with scaling (%u)\n",
1339 			    width_bytes, 4096);
1340 		return -EINVAL;
1341 	}
1342 
1343 	if (stride > 4096) {
1344 		drm_dbg_kms(&i915->drm, "Stride (%u) exceeds hardware max with scaling (%u)\n",
1345 			    stride, 4096);
1346 		return -EINVAL;
1347 	}
1348 
1349 	return 0;
1350 }
1351 
1352 static int
1353 g4x_sprite_check(struct intel_crtc_state *crtc_state,
1354 		 struct intel_plane_state *plane_state)
1355 {
1356 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
1357 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1358 	int min_scale = DRM_PLANE_NO_SCALING;
1359 	int max_scale = DRM_PLANE_NO_SCALING;
1360 	int ret;
1361 
1362 	if (g4x_fb_scalable(plane_state->hw.fb)) {
1363 		if (DISPLAY_VER(dev_priv) < 7) {
1364 			min_scale = 1;
1365 			max_scale = 16 << 16;
1366 		} else if (IS_IVYBRIDGE(dev_priv)) {
1367 			min_scale = 1;
1368 			max_scale = 2 << 16;
1369 		}
1370 	}
1371 
1372 	ret = intel_atomic_plane_check_clipping(plane_state, crtc_state,
1373 						min_scale, max_scale, true);
1374 	if (ret)
1375 		return ret;
1376 
1377 	ret = i9xx_check_plane_surface(plane_state);
1378 	if (ret)
1379 		return ret;
1380 
1381 	if (!plane_state->uapi.visible)
1382 		return 0;
1383 
1384 	ret = intel_plane_check_src_coordinates(plane_state);
1385 	if (ret)
1386 		return ret;
1387 
1388 	ret = g4x_sprite_check_scaling(crtc_state, plane_state);
1389 	if (ret)
1390 		return ret;
1391 
1392 	if (DISPLAY_VER(dev_priv) >= 7)
1393 		plane_state->ctl = ivb_sprite_ctl(crtc_state, plane_state);
1394 	else
1395 		plane_state->ctl = g4x_sprite_ctl(crtc_state, plane_state);
1396 
1397 	return 0;
1398 }
1399 
1400 int chv_plane_check_rotation(const struct intel_plane_state *plane_state)
1401 {
1402 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
1403 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1404 	unsigned int rotation = plane_state->hw.rotation;
1405 
1406 	/* CHV ignores the mirror bit when the rotate bit is set :( */
1407 	if (IS_CHERRYVIEW(dev_priv) &&
1408 	    rotation & DRM_MODE_ROTATE_180 &&
1409 	    rotation & DRM_MODE_REFLECT_X) {
1410 		drm_dbg_kms(&dev_priv->drm,
1411 			    "Cannot rotate and reflect at the same time\n");
1412 		return -EINVAL;
1413 	}
1414 
1415 	return 0;
1416 }
1417 
1418 static int
1419 vlv_sprite_check(struct intel_crtc_state *crtc_state,
1420 		 struct intel_plane_state *plane_state)
1421 {
1422 	int ret;
1423 
1424 	ret = chv_plane_check_rotation(plane_state);
1425 	if (ret)
1426 		return ret;
1427 
1428 	ret = intel_atomic_plane_check_clipping(plane_state, crtc_state,
1429 						DRM_PLANE_NO_SCALING,
1430 						DRM_PLANE_NO_SCALING,
1431 						true);
1432 	if (ret)
1433 		return ret;
1434 
1435 	ret = i9xx_check_plane_surface(plane_state);
1436 	if (ret)
1437 		return ret;
1438 
1439 	if (!plane_state->uapi.visible)
1440 		return 0;
1441 
1442 	ret = intel_plane_check_src_coordinates(plane_state);
1443 	if (ret)
1444 		return ret;
1445 
1446 	plane_state->ctl = vlv_sprite_ctl(crtc_state, plane_state);
1447 
1448 	return 0;
1449 }
1450 
1451 static bool has_dst_key_in_primary_plane(struct drm_i915_private *dev_priv)
1452 {
1453 	return DISPLAY_VER(dev_priv) >= 9;
1454 }
1455 
1456 static void intel_plane_set_ckey(struct intel_plane_state *plane_state,
1457 				 const struct drm_intel_sprite_colorkey *set)
1458 {
1459 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
1460 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1461 	struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
1462 
1463 	*key = *set;
1464 
1465 	/*
1466 	 * We want src key enabled on the
1467 	 * sprite and not on the primary.
1468 	 */
1469 	if (plane->id == PLANE_PRIMARY &&
1470 	    set->flags & I915_SET_COLORKEY_SOURCE)
1471 		key->flags = 0;
1472 
1473 	/*
1474 	 * On SKL+ we want dst key enabled on
1475 	 * the primary and not on the sprite.
1476 	 */
1477 	if (DISPLAY_VER(dev_priv) >= 9 && plane->id != PLANE_PRIMARY &&
1478 	    set->flags & I915_SET_COLORKEY_DESTINATION)
1479 		key->flags = 0;
1480 }
1481 
1482 int intel_sprite_set_colorkey_ioctl(struct drm_device *dev, void *data,
1483 				    struct drm_file *file_priv)
1484 {
1485 	struct drm_i915_private *dev_priv = to_i915(dev);
1486 	struct drm_intel_sprite_colorkey *set = data;
1487 	struct drm_plane *plane;
1488 	struct drm_plane_state *plane_state;
1489 	struct drm_atomic_state *state;
1490 	struct drm_modeset_acquire_ctx ctx;
1491 	int ret = 0;
1492 
1493 	/* ignore the pointless "none" flag */
1494 	set->flags &= ~I915_SET_COLORKEY_NONE;
1495 
1496 	if (set->flags & ~(I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
1497 		return -EINVAL;
1498 
1499 	/* Make sure we don't try to enable both src & dest simultaneously */
1500 	if ((set->flags & (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE)) == (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
1501 		return -EINVAL;
1502 
1503 	if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
1504 	    set->flags & I915_SET_COLORKEY_DESTINATION)
1505 		return -EINVAL;
1506 
1507 	plane = drm_plane_find(dev, file_priv, set->plane_id);
1508 	if (!plane || plane->type != DRM_PLANE_TYPE_OVERLAY)
1509 		return -ENOENT;
1510 
1511 	/*
1512 	 * SKL+ only plane 2 can do destination keying against plane 1.
1513 	 * Also multiple planes can't do destination keying on the same
1514 	 * pipe simultaneously.
1515 	 */
1516 	if (DISPLAY_VER(dev_priv) >= 9 &&
1517 	    to_intel_plane(plane)->id >= PLANE_SPRITE1 &&
1518 	    set->flags & I915_SET_COLORKEY_DESTINATION)
1519 		return -EINVAL;
1520 
1521 	drm_modeset_acquire_init(&ctx, 0);
1522 
1523 	state = drm_atomic_state_alloc(plane->dev);
1524 	if (!state) {
1525 		ret = -ENOMEM;
1526 		goto out;
1527 	}
1528 	state->acquire_ctx = &ctx;
1529 
1530 	while (1) {
1531 		plane_state = drm_atomic_get_plane_state(state, plane);
1532 		ret = PTR_ERR_OR_ZERO(plane_state);
1533 		if (!ret)
1534 			intel_plane_set_ckey(to_intel_plane_state(plane_state), set);
1535 
1536 		/*
1537 		 * On some platforms we have to configure
1538 		 * the dst colorkey on the primary plane.
1539 		 */
1540 		if (!ret && has_dst_key_in_primary_plane(dev_priv)) {
1541 			struct intel_crtc *crtc =
1542 				intel_crtc_for_pipe(dev_priv,
1543 						    to_intel_plane(plane)->pipe);
1544 
1545 			plane_state = drm_atomic_get_plane_state(state,
1546 								 crtc->base.primary);
1547 			ret = PTR_ERR_OR_ZERO(plane_state);
1548 			if (!ret)
1549 				intel_plane_set_ckey(to_intel_plane_state(plane_state), set);
1550 		}
1551 
1552 		if (!ret)
1553 			ret = drm_atomic_commit(state);
1554 
1555 		if (ret != -EDEADLK)
1556 			break;
1557 
1558 		drm_atomic_state_clear(state);
1559 		drm_modeset_backoff(&ctx);
1560 	}
1561 
1562 	drm_atomic_state_put(state);
1563 out:
1564 	drm_modeset_drop_locks(&ctx);
1565 	drm_modeset_acquire_fini(&ctx);
1566 	return ret;
1567 }
1568 
1569 static const u32 g4x_sprite_formats[] = {
1570 	DRM_FORMAT_XRGB8888,
1571 	DRM_FORMAT_YUYV,
1572 	DRM_FORMAT_YVYU,
1573 	DRM_FORMAT_UYVY,
1574 	DRM_FORMAT_VYUY,
1575 };
1576 
1577 static const u32 snb_sprite_formats[] = {
1578 	DRM_FORMAT_XRGB8888,
1579 	DRM_FORMAT_XBGR8888,
1580 	DRM_FORMAT_XRGB2101010,
1581 	DRM_FORMAT_XBGR2101010,
1582 	DRM_FORMAT_XRGB16161616F,
1583 	DRM_FORMAT_XBGR16161616F,
1584 	DRM_FORMAT_YUYV,
1585 	DRM_FORMAT_YVYU,
1586 	DRM_FORMAT_UYVY,
1587 	DRM_FORMAT_VYUY,
1588 };
1589 
1590 static const u32 vlv_sprite_formats[] = {
1591 	DRM_FORMAT_C8,
1592 	DRM_FORMAT_RGB565,
1593 	DRM_FORMAT_XRGB8888,
1594 	DRM_FORMAT_XBGR8888,
1595 	DRM_FORMAT_ARGB8888,
1596 	DRM_FORMAT_ABGR8888,
1597 	DRM_FORMAT_XBGR2101010,
1598 	DRM_FORMAT_ABGR2101010,
1599 	DRM_FORMAT_YUYV,
1600 	DRM_FORMAT_YVYU,
1601 	DRM_FORMAT_UYVY,
1602 	DRM_FORMAT_VYUY,
1603 };
1604 
1605 static const u32 chv_pipe_b_sprite_formats[] = {
1606 	DRM_FORMAT_C8,
1607 	DRM_FORMAT_RGB565,
1608 	DRM_FORMAT_XRGB8888,
1609 	DRM_FORMAT_XBGR8888,
1610 	DRM_FORMAT_ARGB8888,
1611 	DRM_FORMAT_ABGR8888,
1612 	DRM_FORMAT_XRGB2101010,
1613 	DRM_FORMAT_XBGR2101010,
1614 	DRM_FORMAT_ARGB2101010,
1615 	DRM_FORMAT_ABGR2101010,
1616 	DRM_FORMAT_YUYV,
1617 	DRM_FORMAT_YVYU,
1618 	DRM_FORMAT_UYVY,
1619 	DRM_FORMAT_VYUY,
1620 };
1621 
1622 static bool g4x_sprite_format_mod_supported(struct drm_plane *_plane,
1623 					    u32 format, u64 modifier)
1624 {
1625 	if (!intel_fb_plane_supports_modifier(to_intel_plane(_plane), modifier))
1626 		return false;
1627 
1628 	switch (format) {
1629 	case DRM_FORMAT_XRGB8888:
1630 	case DRM_FORMAT_YUYV:
1631 	case DRM_FORMAT_YVYU:
1632 	case DRM_FORMAT_UYVY:
1633 	case DRM_FORMAT_VYUY:
1634 		if (modifier == DRM_FORMAT_MOD_LINEAR ||
1635 		    modifier == I915_FORMAT_MOD_X_TILED)
1636 			return true;
1637 		fallthrough;
1638 	default:
1639 		return false;
1640 	}
1641 }
1642 
1643 static bool snb_sprite_format_mod_supported(struct drm_plane *_plane,
1644 					    u32 format, u64 modifier)
1645 {
1646 	if (!intel_fb_plane_supports_modifier(to_intel_plane(_plane), modifier))
1647 		return false;
1648 
1649 	switch (format) {
1650 	case DRM_FORMAT_XRGB8888:
1651 	case DRM_FORMAT_XBGR8888:
1652 	case DRM_FORMAT_XRGB2101010:
1653 	case DRM_FORMAT_XBGR2101010:
1654 	case DRM_FORMAT_XRGB16161616F:
1655 	case DRM_FORMAT_XBGR16161616F:
1656 	case DRM_FORMAT_YUYV:
1657 	case DRM_FORMAT_YVYU:
1658 	case DRM_FORMAT_UYVY:
1659 	case DRM_FORMAT_VYUY:
1660 		if (modifier == DRM_FORMAT_MOD_LINEAR ||
1661 		    modifier == I915_FORMAT_MOD_X_TILED)
1662 			return true;
1663 		fallthrough;
1664 	default:
1665 		return false;
1666 	}
1667 }
1668 
1669 static bool vlv_sprite_format_mod_supported(struct drm_plane *_plane,
1670 					    u32 format, u64 modifier)
1671 {
1672 	if (!intel_fb_plane_supports_modifier(to_intel_plane(_plane), modifier))
1673 		return false;
1674 
1675 	switch (format) {
1676 	case DRM_FORMAT_C8:
1677 	case DRM_FORMAT_RGB565:
1678 	case DRM_FORMAT_ABGR8888:
1679 	case DRM_FORMAT_ARGB8888:
1680 	case DRM_FORMAT_XBGR8888:
1681 	case DRM_FORMAT_XRGB8888:
1682 	case DRM_FORMAT_XBGR2101010:
1683 	case DRM_FORMAT_ABGR2101010:
1684 	case DRM_FORMAT_XRGB2101010:
1685 	case DRM_FORMAT_ARGB2101010:
1686 	case DRM_FORMAT_YUYV:
1687 	case DRM_FORMAT_YVYU:
1688 	case DRM_FORMAT_UYVY:
1689 	case DRM_FORMAT_VYUY:
1690 		if (modifier == DRM_FORMAT_MOD_LINEAR ||
1691 		    modifier == I915_FORMAT_MOD_X_TILED)
1692 			return true;
1693 		fallthrough;
1694 	default:
1695 		return false;
1696 	}
1697 }
1698 
1699 static const struct drm_plane_funcs g4x_sprite_funcs = {
1700 	.update_plane = drm_atomic_helper_update_plane,
1701 	.disable_plane = drm_atomic_helper_disable_plane,
1702 	.destroy = intel_plane_destroy,
1703 	.atomic_duplicate_state = intel_plane_duplicate_state,
1704 	.atomic_destroy_state = intel_plane_destroy_state,
1705 	.format_mod_supported = g4x_sprite_format_mod_supported,
1706 };
1707 
1708 static const struct drm_plane_funcs snb_sprite_funcs = {
1709 	.update_plane = drm_atomic_helper_update_plane,
1710 	.disable_plane = drm_atomic_helper_disable_plane,
1711 	.destroy = intel_plane_destroy,
1712 	.atomic_duplicate_state = intel_plane_duplicate_state,
1713 	.atomic_destroy_state = intel_plane_destroy_state,
1714 	.format_mod_supported = snb_sprite_format_mod_supported,
1715 };
1716 
1717 static const struct drm_plane_funcs vlv_sprite_funcs = {
1718 	.update_plane = drm_atomic_helper_update_plane,
1719 	.disable_plane = drm_atomic_helper_disable_plane,
1720 	.destroy = intel_plane_destroy,
1721 	.atomic_duplicate_state = intel_plane_duplicate_state,
1722 	.atomic_destroy_state = intel_plane_destroy_state,
1723 	.format_mod_supported = vlv_sprite_format_mod_supported,
1724 };
1725 
1726 struct intel_plane *
1727 intel_sprite_plane_create(struct drm_i915_private *dev_priv,
1728 			  enum pipe pipe, int sprite)
1729 {
1730 	struct intel_plane *plane;
1731 	const struct drm_plane_funcs *plane_funcs;
1732 	unsigned int supported_rotations;
1733 	const u64 *modifiers;
1734 	const u32 *formats;
1735 	int num_formats;
1736 	int ret, zpos;
1737 
1738 	plane = intel_plane_alloc();
1739 	if (IS_ERR(plane))
1740 		return plane;
1741 
1742 	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
1743 		plane->update_noarm = vlv_sprite_update_noarm;
1744 		plane->update_arm = vlv_sprite_update_arm;
1745 		plane->disable_arm = vlv_sprite_disable_arm;
1746 		plane->get_hw_state = vlv_sprite_get_hw_state;
1747 		plane->check_plane = vlv_sprite_check;
1748 		plane->max_stride = i965_plane_max_stride;
1749 		plane->min_cdclk = vlv_plane_min_cdclk;
1750 
1751 		if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) {
1752 			formats = chv_pipe_b_sprite_formats;
1753 			num_formats = ARRAY_SIZE(chv_pipe_b_sprite_formats);
1754 		} else {
1755 			formats = vlv_sprite_formats;
1756 			num_formats = ARRAY_SIZE(vlv_sprite_formats);
1757 		}
1758 
1759 		plane_funcs = &vlv_sprite_funcs;
1760 	} else if (DISPLAY_VER(dev_priv) >= 7) {
1761 		plane->update_noarm = ivb_sprite_update_noarm;
1762 		plane->update_arm = ivb_sprite_update_arm;
1763 		plane->disable_arm = ivb_sprite_disable_arm;
1764 		plane->get_hw_state = ivb_sprite_get_hw_state;
1765 		plane->check_plane = g4x_sprite_check;
1766 
1767 		if (IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv)) {
1768 			plane->max_stride = hsw_sprite_max_stride;
1769 			plane->min_cdclk = hsw_plane_min_cdclk;
1770 		} else {
1771 			plane->max_stride = g4x_sprite_max_stride;
1772 			plane->min_cdclk = ivb_sprite_min_cdclk;
1773 		}
1774 
1775 		formats = snb_sprite_formats;
1776 		num_formats = ARRAY_SIZE(snb_sprite_formats);
1777 
1778 		plane_funcs = &snb_sprite_funcs;
1779 	} else {
1780 		plane->update_noarm = g4x_sprite_update_noarm;
1781 		plane->update_arm = g4x_sprite_update_arm;
1782 		plane->disable_arm = g4x_sprite_disable_arm;
1783 		plane->get_hw_state = g4x_sprite_get_hw_state;
1784 		plane->check_plane = g4x_sprite_check;
1785 		plane->max_stride = g4x_sprite_max_stride;
1786 		plane->min_cdclk = g4x_sprite_min_cdclk;
1787 
1788 		if (IS_SANDYBRIDGE(dev_priv)) {
1789 			formats = snb_sprite_formats;
1790 			num_formats = ARRAY_SIZE(snb_sprite_formats);
1791 
1792 			plane_funcs = &snb_sprite_funcs;
1793 		} else {
1794 			formats = g4x_sprite_formats;
1795 			num_formats = ARRAY_SIZE(g4x_sprite_formats);
1796 
1797 			plane_funcs = &g4x_sprite_funcs;
1798 		}
1799 	}
1800 
1801 	if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) {
1802 		supported_rotations =
1803 			DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 |
1804 			DRM_MODE_REFLECT_X;
1805 	} else {
1806 		supported_rotations =
1807 			DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180;
1808 	}
1809 
1810 	plane->pipe = pipe;
1811 	plane->id = PLANE_SPRITE0 + sprite;
1812 	plane->frontbuffer_bit = INTEL_FRONTBUFFER(pipe, plane->id);
1813 
1814 	modifiers = intel_fb_plane_get_modifiers(dev_priv, INTEL_PLANE_CAP_TILING_X);
1815 
1816 	ret = drm_universal_plane_init(&dev_priv->drm, &plane->base,
1817 				       0, plane_funcs,
1818 				       formats, num_formats, modifiers,
1819 				       DRM_PLANE_TYPE_OVERLAY,
1820 				       "sprite %c", sprite_name(pipe, sprite));
1821 	kfree(modifiers);
1822 
1823 	if (ret)
1824 		goto fail;
1825 
1826 	drm_plane_create_rotation_property(&plane->base,
1827 					   DRM_MODE_ROTATE_0,
1828 					   supported_rotations);
1829 
1830 	drm_plane_create_color_properties(&plane->base,
1831 					  BIT(DRM_COLOR_YCBCR_BT601) |
1832 					  BIT(DRM_COLOR_YCBCR_BT709),
1833 					  BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
1834 					  BIT(DRM_COLOR_YCBCR_FULL_RANGE),
1835 					  DRM_COLOR_YCBCR_BT709,
1836 					  DRM_COLOR_YCBCR_LIMITED_RANGE);
1837 
1838 	zpos = sprite + 1;
1839 	drm_plane_create_zpos_immutable_property(&plane->base, zpos);
1840 
1841 	intel_plane_helper_add(plane);
1842 
1843 	return plane;
1844 
1845 fail:
1846 	intel_plane_free(plane);
1847 
1848 	return ERR_PTR(ret);
1849 }
1850