xref: /linux/drivers/gpu/drm/i915/display/intel_sprite.c (revision 95298d63c67673c654c08952672d016212b26054)
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 <drm/drm_atomic.h>
34 #include <drm/drm_atomic_helper.h>
35 #include <drm/drm_color_mgmt.h>
36 #include <drm/drm_crtc.h>
37 #include <drm/drm_fourcc.h>
38 #include <drm/drm_plane_helper.h>
39 #include <drm/drm_rect.h>
40 
41 #include "i915_drv.h"
42 #include "i915_trace.h"
43 #include "i915_vgpu.h"
44 #include "intel_atomic_plane.h"
45 #include "intel_display_types.h"
46 #include "intel_frontbuffer.h"
47 #include "intel_pm.h"
48 #include "intel_psr.h"
49 #include "intel_sprite.h"
50 
51 int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
52 			     int usecs)
53 {
54 	/* paranoia */
55 	if (!adjusted_mode->crtc_htotal)
56 		return 1;
57 
58 	return DIV_ROUND_UP(usecs * adjusted_mode->crtc_clock,
59 			    1000 * adjusted_mode->crtc_htotal);
60 }
61 
62 /* FIXME: We should instead only take spinlocks once for the entire update
63  * instead of once per mmio. */
64 #if IS_ENABLED(CONFIG_PROVE_LOCKING)
65 #define VBLANK_EVASION_TIME_US 250
66 #else
67 #define VBLANK_EVASION_TIME_US 100
68 #endif
69 
70 /**
71  * intel_pipe_update_start() - start update of a set of display registers
72  * @new_crtc_state: the new crtc state
73  *
74  * Mark the start of an update to pipe registers that should be updated
75  * atomically regarding vblank. If the next vblank will happens within
76  * the next 100 us, this function waits until the vblank passes.
77  *
78  * After a successful call to this function, interrupts will be disabled
79  * until a subsequent call to intel_pipe_update_end(). That is done to
80  * avoid random delays.
81  */
82 void intel_pipe_update_start(const struct intel_crtc_state *new_crtc_state)
83 {
84 	struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc);
85 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
86 	const struct drm_display_mode *adjusted_mode = &new_crtc_state->hw.adjusted_mode;
87 	long timeout = msecs_to_jiffies_timeout(1);
88 	int scanline, min, max, vblank_start;
89 	wait_queue_head_t *wq = drm_crtc_vblank_waitqueue(&crtc->base);
90 	bool need_vlv_dsi_wa = (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
91 		intel_crtc_has_type(new_crtc_state, INTEL_OUTPUT_DSI);
92 	DEFINE_WAIT(wait);
93 	u32 psr_status;
94 
95 	vblank_start = adjusted_mode->crtc_vblank_start;
96 	if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE)
97 		vblank_start = DIV_ROUND_UP(vblank_start, 2);
98 
99 	/* FIXME needs to be calibrated sensibly */
100 	min = vblank_start - intel_usecs_to_scanlines(adjusted_mode,
101 						      VBLANK_EVASION_TIME_US);
102 	max = vblank_start - 1;
103 
104 	if (min <= 0 || max <= 0)
105 		goto irq_disable;
106 
107 	if (drm_WARN_ON(&dev_priv->drm, drm_crtc_vblank_get(&crtc->base)))
108 		goto irq_disable;
109 
110 	/*
111 	 * Wait for psr to idle out after enabling the VBL interrupts
112 	 * VBL interrupts will start the PSR exit and prevent a PSR
113 	 * re-entry as well.
114 	 */
115 	if (intel_psr_wait_for_idle(new_crtc_state, &psr_status))
116 		drm_err(&dev_priv->drm,
117 			"PSR idle timed out 0x%x, atomic update may fail\n",
118 			psr_status);
119 
120 	local_irq_disable();
121 
122 	crtc->debug.min_vbl = min;
123 	crtc->debug.max_vbl = max;
124 	trace_intel_pipe_update_start(crtc);
125 
126 	for (;;) {
127 		/*
128 		 * prepare_to_wait() has a memory barrier, which guarantees
129 		 * other CPUs can see the task state update by the time we
130 		 * read the scanline.
131 		 */
132 		prepare_to_wait(wq, &wait, TASK_UNINTERRUPTIBLE);
133 
134 		scanline = intel_get_crtc_scanline(crtc);
135 		if (scanline < min || scanline > max)
136 			break;
137 
138 		if (!timeout) {
139 			drm_err(&dev_priv->drm,
140 				"Potential atomic update failure on pipe %c\n",
141 				pipe_name(crtc->pipe));
142 			break;
143 		}
144 
145 		local_irq_enable();
146 
147 		timeout = schedule_timeout(timeout);
148 
149 		local_irq_disable();
150 	}
151 
152 	finish_wait(wq, &wait);
153 
154 	drm_crtc_vblank_put(&crtc->base);
155 
156 	/*
157 	 * On VLV/CHV DSI the scanline counter would appear to
158 	 * increment approx. 1/3 of a scanline before start of vblank.
159 	 * The registers still get latched at start of vblank however.
160 	 * This means we must not write any registers on the first
161 	 * line of vblank (since not the whole line is actually in
162 	 * vblank). And unfortunately we can't use the interrupt to
163 	 * wait here since it will fire too soon. We could use the
164 	 * frame start interrupt instead since it will fire after the
165 	 * critical scanline, but that would require more changes
166 	 * in the interrupt code. So for now we'll just do the nasty
167 	 * thing and poll for the bad scanline to pass us by.
168 	 *
169 	 * FIXME figure out if BXT+ DSI suffers from this as well
170 	 */
171 	while (need_vlv_dsi_wa && scanline == vblank_start)
172 		scanline = intel_get_crtc_scanline(crtc);
173 
174 	crtc->debug.scanline_start = scanline;
175 	crtc->debug.start_vbl_time = ktime_get();
176 	crtc->debug.start_vbl_count = intel_crtc_get_vblank_counter(crtc);
177 
178 	trace_intel_pipe_update_vblank_evaded(crtc);
179 	return;
180 
181 irq_disable:
182 	local_irq_disable();
183 }
184 
185 /**
186  * intel_pipe_update_end() - end update of a set of display registers
187  * @new_crtc_state: the new crtc state
188  *
189  * Mark the end of an update started with intel_pipe_update_start(). This
190  * re-enables interrupts and verifies the update was actually completed
191  * before a vblank.
192  */
193 void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state)
194 {
195 	struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc);
196 	enum pipe pipe = crtc->pipe;
197 	int scanline_end = intel_get_crtc_scanline(crtc);
198 	u32 end_vbl_count = intel_crtc_get_vblank_counter(crtc);
199 	ktime_t end_vbl_time = ktime_get();
200 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
201 
202 	trace_intel_pipe_update_end(crtc, end_vbl_count, scanline_end);
203 
204 	/* We're still in the vblank-evade critical section, this can't race.
205 	 * Would be slightly nice to just grab the vblank count and arm the
206 	 * event outside of the critical section - the spinlock might spin for a
207 	 * while ... */
208 	if (new_crtc_state->uapi.event) {
209 		drm_WARN_ON(&dev_priv->drm,
210 			    drm_crtc_vblank_get(&crtc->base) != 0);
211 
212 		spin_lock(&crtc->base.dev->event_lock);
213 		drm_crtc_arm_vblank_event(&crtc->base,
214 				          new_crtc_state->uapi.event);
215 		spin_unlock(&crtc->base.dev->event_lock);
216 
217 		new_crtc_state->uapi.event = NULL;
218 	}
219 
220 	local_irq_enable();
221 
222 	if (intel_vgpu_active(dev_priv))
223 		return;
224 
225 	if (crtc->debug.start_vbl_count &&
226 	    crtc->debug.start_vbl_count != end_vbl_count) {
227 		drm_err(&dev_priv->drm,
228 			"Atomic update failure on pipe %c (start=%u end=%u) time %lld us, min %d, max %d, scanline start %d, end %d\n",
229 			pipe_name(pipe), crtc->debug.start_vbl_count,
230 			end_vbl_count,
231 			ktime_us_delta(end_vbl_time,
232 				       crtc->debug.start_vbl_time),
233 			crtc->debug.min_vbl, crtc->debug.max_vbl,
234 			crtc->debug.scanline_start, scanline_end);
235 	}
236 #ifdef CONFIG_DRM_I915_DEBUG_VBLANK_EVADE
237 	else if (ktime_us_delta(end_vbl_time, crtc->debug.start_vbl_time) >
238 		 VBLANK_EVASION_TIME_US)
239 		drm_warn(&dev_priv->drm,
240 			 "Atomic update on pipe (%c) took %lld us, max time under evasion is %u us\n",
241 			 pipe_name(pipe),
242 			 ktime_us_delta(end_vbl_time, crtc->debug.start_vbl_time),
243 			 VBLANK_EVASION_TIME_US);
244 #endif
245 }
246 
247 int intel_plane_check_stride(const struct intel_plane_state *plane_state)
248 {
249 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
250 	const struct drm_framebuffer *fb = plane_state->hw.fb;
251 	unsigned int rotation = plane_state->hw.rotation;
252 	u32 stride, max_stride;
253 
254 	/*
255 	 * We ignore stride for all invisible planes that
256 	 * can be remapped. Otherwise we could end up
257 	 * with a false positive when the remapping didn't
258 	 * kick in due the plane being invisible.
259 	 */
260 	if (intel_plane_can_remap(plane_state) &&
261 	    !plane_state->uapi.visible)
262 		return 0;
263 
264 	/* FIXME other color planes? */
265 	stride = plane_state->color_plane[0].stride;
266 	max_stride = plane->max_stride(plane, fb->format->format,
267 				       fb->modifier, rotation);
268 
269 	if (stride > max_stride) {
270 		DRM_DEBUG_KMS("[FB:%d] stride (%d) exceeds [PLANE:%d:%s] max stride (%d)\n",
271 			      fb->base.id, stride,
272 			      plane->base.base.id, plane->base.name, max_stride);
273 		return -EINVAL;
274 	}
275 
276 	return 0;
277 }
278 
279 int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state)
280 {
281 	const struct drm_framebuffer *fb = plane_state->hw.fb;
282 	struct drm_rect *src = &plane_state->uapi.src;
283 	u32 src_x, src_y, src_w, src_h, hsub, vsub;
284 	bool rotated = drm_rotation_90_or_270(plane_state->hw.rotation);
285 
286 	/*
287 	 * FIXME hsub/vsub vs. block size is a mess. Pre-tgl CCS
288 	 * abuses hsub/vsub so we can't use them here. But as they
289 	 * are limited to 32bpp RGB formats we don't actually need
290 	 * to check anything.
291 	 */
292 	if (fb->modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
293 	    fb->modifier == I915_FORMAT_MOD_Yf_TILED_CCS)
294 		return 0;
295 
296 	/*
297 	 * Hardware doesn't handle subpixel coordinates.
298 	 * Adjust to (macro)pixel boundary, but be careful not to
299 	 * increase the source viewport size, because that could
300 	 * push the downscaling factor out of bounds.
301 	 */
302 	src_x = src->x1 >> 16;
303 	src_w = drm_rect_width(src) >> 16;
304 	src_y = src->y1 >> 16;
305 	src_h = drm_rect_height(src) >> 16;
306 
307 	drm_rect_init(src, src_x << 16, src_y << 16,
308 		      src_w << 16, src_h << 16);
309 
310 	if (fb->format->format == DRM_FORMAT_RGB565 && rotated) {
311 		hsub = 2;
312 		vsub = 2;
313 	} else {
314 		hsub = fb->format->hsub;
315 		vsub = fb->format->vsub;
316 	}
317 
318 	if (rotated)
319 		hsub = vsub = max(hsub, vsub);
320 
321 	if (src_x % hsub || src_w % hsub) {
322 		DRM_DEBUG_KMS("src x/w (%u, %u) must be a multiple of %u (rotated: %s)\n",
323 			      src_x, src_w, hsub, yesno(rotated));
324 		return -EINVAL;
325 	}
326 
327 	if (src_y % vsub || src_h % vsub) {
328 		DRM_DEBUG_KMS("src y/h (%u, %u) must be a multiple of %u (rotated: %s)\n",
329 			      src_y, src_h, vsub, yesno(rotated));
330 		return -EINVAL;
331 	}
332 
333 	return 0;
334 }
335 
336 bool icl_is_hdr_plane(struct drm_i915_private *dev_priv, enum plane_id plane_id)
337 {
338 	return INTEL_GEN(dev_priv) >= 11 &&
339 		icl_hdr_plane_mask() & BIT(plane_id);
340 }
341 
342 static void
343 skl_plane_ratio(const struct intel_crtc_state *crtc_state,
344 		const struct intel_plane_state *plane_state,
345 		unsigned int *num, unsigned int *den)
346 {
347 	struct drm_i915_private *dev_priv = to_i915(plane_state->uapi.plane->dev);
348 	const struct drm_framebuffer *fb = plane_state->hw.fb;
349 
350 	if (fb->format->cpp[0] == 8) {
351 		if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) {
352 			*num = 10;
353 			*den = 8;
354 		} else {
355 			*num = 9;
356 			*den = 8;
357 		}
358 	} else {
359 		*num = 1;
360 		*den = 1;
361 	}
362 }
363 
364 static int skl_plane_min_cdclk(const struct intel_crtc_state *crtc_state,
365 			       const struct intel_plane_state *plane_state)
366 {
367 	struct drm_i915_private *dev_priv = to_i915(plane_state->uapi.plane->dev);
368 	unsigned int num, den;
369 	unsigned int pixel_rate = intel_plane_pixel_rate(crtc_state, plane_state);
370 
371 	skl_plane_ratio(crtc_state, plane_state, &num, &den);
372 
373 	/* two pixels per clock on glk+ */
374 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
375 		den *= 2;
376 
377 	return DIV_ROUND_UP(pixel_rate * num, den);
378 }
379 
380 static unsigned int
381 skl_plane_max_stride(struct intel_plane *plane,
382 		     u32 pixel_format, u64 modifier,
383 		     unsigned int rotation)
384 {
385 	const struct drm_format_info *info = drm_format_info(pixel_format);
386 	int cpp = info->cpp[0];
387 
388 	/*
389 	 * "The stride in bytes must not exceed the
390 	 * of the size of 8K pixels and 32K bytes."
391 	 */
392 	if (drm_rotation_90_or_270(rotation))
393 		return min(8192, 32768 / cpp);
394 	else
395 		return min(8192 * cpp, 32768);
396 }
397 
398 static void
399 skl_program_scaler(struct intel_plane *plane,
400 		   const struct intel_crtc_state *crtc_state,
401 		   const struct intel_plane_state *plane_state)
402 {
403 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
404 	const struct drm_framebuffer *fb = plane_state->hw.fb;
405 	enum pipe pipe = plane->pipe;
406 	int scaler_id = plane_state->scaler_id;
407 	const struct intel_scaler *scaler =
408 		&crtc_state->scaler_state.scalers[scaler_id];
409 	int crtc_x = plane_state->uapi.dst.x1;
410 	int crtc_y = plane_state->uapi.dst.y1;
411 	u32 crtc_w = drm_rect_width(&plane_state->uapi.dst);
412 	u32 crtc_h = drm_rect_height(&plane_state->uapi.dst);
413 	u16 y_hphase, uv_rgb_hphase;
414 	u16 y_vphase, uv_rgb_vphase;
415 	int hscale, vscale;
416 
417 	hscale = drm_rect_calc_hscale(&plane_state->uapi.src,
418 				      &plane_state->uapi.dst,
419 				      0, INT_MAX);
420 	vscale = drm_rect_calc_vscale(&plane_state->uapi.src,
421 				      &plane_state->uapi.dst,
422 				      0, INT_MAX);
423 
424 	/* TODO: handle sub-pixel coordinates */
425 	if (intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier) &&
426 	    !icl_is_hdr_plane(dev_priv, plane->id)) {
427 		y_hphase = skl_scaler_calc_phase(1, hscale, false);
428 		y_vphase = skl_scaler_calc_phase(1, vscale, false);
429 
430 		/* MPEG2 chroma siting convention */
431 		uv_rgb_hphase = skl_scaler_calc_phase(2, hscale, true);
432 		uv_rgb_vphase = skl_scaler_calc_phase(2, vscale, false);
433 	} else {
434 		/* not used */
435 		y_hphase = 0;
436 		y_vphase = 0;
437 
438 		uv_rgb_hphase = skl_scaler_calc_phase(1, hscale, false);
439 		uv_rgb_vphase = skl_scaler_calc_phase(1, vscale, false);
440 	}
441 
442 	intel_de_write_fw(dev_priv, SKL_PS_CTRL(pipe, scaler_id),
443 			  PS_SCALER_EN | PS_PLANE_SEL(plane->id) | scaler->mode);
444 	intel_de_write_fw(dev_priv, SKL_PS_VPHASE(pipe, scaler_id),
445 			  PS_Y_PHASE(y_vphase) | PS_UV_RGB_PHASE(uv_rgb_vphase));
446 	intel_de_write_fw(dev_priv, SKL_PS_HPHASE(pipe, scaler_id),
447 			  PS_Y_PHASE(y_hphase) | PS_UV_RGB_PHASE(uv_rgb_hphase));
448 	intel_de_write_fw(dev_priv, SKL_PS_WIN_POS(pipe, scaler_id),
449 			  (crtc_x << 16) | crtc_y);
450 	intel_de_write_fw(dev_priv, SKL_PS_WIN_SZ(pipe, scaler_id),
451 			  (crtc_w << 16) | crtc_h);
452 }
453 
454 /* Preoffset values for YUV to RGB Conversion */
455 #define PREOFF_YUV_TO_RGB_HI		0x1800
456 #define PREOFF_YUV_TO_RGB_ME		0x1F00
457 #define PREOFF_YUV_TO_RGB_LO		0x1800
458 
459 #define  ROFF(x)          (((x) & 0xffff) << 16)
460 #define  GOFF(x)          (((x) & 0xffff) << 0)
461 #define  BOFF(x)          (((x) & 0xffff) << 16)
462 
463 static void
464 icl_program_input_csc(struct intel_plane *plane,
465 		      const struct intel_crtc_state *crtc_state,
466 		      const struct intel_plane_state *plane_state)
467 {
468 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
469 	enum pipe pipe = plane->pipe;
470 	enum plane_id plane_id = plane->id;
471 
472 	static const u16 input_csc_matrix[][9] = {
473 		/*
474 		 * BT.601 full range YCbCr -> full range RGB
475 		 * The matrix required is :
476 		 * [1.000, 0.000, 1.371,
477 		 *  1.000, -0.336, -0.698,
478 		 *  1.000, 1.732, 0.0000]
479 		 */
480 		[DRM_COLOR_YCBCR_BT601] = {
481 			0x7AF8, 0x7800, 0x0,
482 			0x8B28, 0x7800, 0x9AC0,
483 			0x0, 0x7800, 0x7DD8,
484 		},
485 		/*
486 		 * BT.709 full range YCbCr -> full range RGB
487 		 * The matrix required is :
488 		 * [1.000, 0.000, 1.574,
489 		 *  1.000, -0.187, -0.468,
490 		 *  1.000, 1.855, 0.0000]
491 		 */
492 		[DRM_COLOR_YCBCR_BT709] = {
493 			0x7C98, 0x7800, 0x0,
494 			0x9EF8, 0x7800, 0xAC00,
495 			0x0, 0x7800,  0x7ED8,
496 		},
497 		/*
498 		 * BT.2020 full range YCbCr -> full range RGB
499 		 * The matrix required is :
500 		 * [1.000, 0.000, 1.474,
501 		 *  1.000, -0.1645, -0.5713,
502 		 *  1.000, 1.8814, 0.0000]
503 		 */
504 		[DRM_COLOR_YCBCR_BT2020] = {
505 			0x7BC8, 0x7800, 0x0,
506 			0x8928, 0x7800, 0xAA88,
507 			0x0, 0x7800, 0x7F10,
508 		},
509 	};
510 
511 	/* Matrix for Limited Range to Full Range Conversion */
512 	static const u16 input_csc_matrix_lr[][9] = {
513 		/*
514 		 * BT.601 Limted range YCbCr -> full range RGB
515 		 * The matrix required is :
516 		 * [1.164384, 0.000, 1.596027,
517 		 *  1.164384, -0.39175, -0.812813,
518 		 *  1.164384, 2.017232, 0.0000]
519 		 */
520 		[DRM_COLOR_YCBCR_BT601] = {
521 			0x7CC8, 0x7950, 0x0,
522 			0x8D00, 0x7950, 0x9C88,
523 			0x0, 0x7950, 0x6810,
524 		},
525 		/*
526 		 * BT.709 Limited range YCbCr -> full range RGB
527 		 * The matrix required is :
528 		 * [1.164384, 0.000, 1.792741,
529 		 *  1.164384, -0.213249, -0.532909,
530 		 *  1.164384, 2.112402, 0.0000]
531 		 */
532 		[DRM_COLOR_YCBCR_BT709] = {
533 			0x7E58, 0x7950, 0x0,
534 			0x8888, 0x7950, 0xADA8,
535 			0x0, 0x7950,  0x6870,
536 		},
537 		/*
538 		 * BT.2020 Limited range YCbCr -> full range RGB
539 		 * The matrix required is :
540 		 * [1.164, 0.000, 1.678,
541 		 *  1.164, -0.1873, -0.6504,
542 		 *  1.164, 2.1417, 0.0000]
543 		 */
544 		[DRM_COLOR_YCBCR_BT2020] = {
545 			0x7D70, 0x7950, 0x0,
546 			0x8A68, 0x7950, 0xAC00,
547 			0x0, 0x7950, 0x6890,
548 		},
549 	};
550 	const u16 *csc;
551 
552 	if (plane_state->hw.color_range == DRM_COLOR_YCBCR_FULL_RANGE)
553 		csc = input_csc_matrix[plane_state->hw.color_encoding];
554 	else
555 		csc = input_csc_matrix_lr[plane_state->hw.color_encoding];
556 
557 	intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 0),
558 			  ROFF(csc[0]) | GOFF(csc[1]));
559 	intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 1),
560 			  BOFF(csc[2]));
561 	intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 2),
562 			  ROFF(csc[3]) | GOFF(csc[4]));
563 	intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 3),
564 			  BOFF(csc[5]));
565 	intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 4),
566 			  ROFF(csc[6]) | GOFF(csc[7]));
567 	intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_COEFF(pipe, plane_id, 5),
568 			  BOFF(csc[8]));
569 
570 	intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 0),
571 			  PREOFF_YUV_TO_RGB_HI);
572 	if (plane_state->hw.color_range == DRM_COLOR_YCBCR_FULL_RANGE)
573 		intel_de_write_fw(dev_priv,
574 				  PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 1),
575 				  0);
576 	else
577 		intel_de_write_fw(dev_priv,
578 				  PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 1),
579 				  PREOFF_YUV_TO_RGB_ME);
580 	intel_de_write_fw(dev_priv, PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 2),
581 			  PREOFF_YUV_TO_RGB_LO);
582 	intel_de_write_fw(dev_priv,
583 			  PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 0), 0x0);
584 	intel_de_write_fw(dev_priv,
585 			  PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 1), 0x0);
586 	intel_de_write_fw(dev_priv,
587 			  PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 2), 0x0);
588 }
589 
590 static void
591 skl_program_plane(struct intel_plane *plane,
592 		  const struct intel_crtc_state *crtc_state,
593 		  const struct intel_plane_state *plane_state,
594 		  int color_plane)
595 {
596 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
597 	enum plane_id plane_id = plane->id;
598 	enum pipe pipe = plane->pipe;
599 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
600 	u32 surf_addr = plane_state->color_plane[color_plane].offset;
601 	u32 stride = skl_plane_stride(plane_state, color_plane);
602 	const struct drm_framebuffer *fb = plane_state->hw.fb;
603 	int aux_plane = intel_main_to_aux_plane(fb, color_plane);
604 	u32 aux_dist = plane_state->color_plane[aux_plane].offset - surf_addr;
605 	u32 aux_stride = skl_plane_stride(plane_state, aux_plane);
606 	int crtc_x = plane_state->uapi.dst.x1;
607 	int crtc_y = plane_state->uapi.dst.y1;
608 	u32 x = plane_state->color_plane[color_plane].x;
609 	u32 y = plane_state->color_plane[color_plane].y;
610 	u32 src_w = drm_rect_width(&plane_state->uapi.src) >> 16;
611 	u32 src_h = drm_rect_height(&plane_state->uapi.src) >> 16;
612 	u8 alpha = plane_state->hw.alpha >> 8;
613 	u32 plane_color_ctl = 0;
614 	unsigned long irqflags;
615 	u32 keymsk, keymax;
616 	u32 plane_ctl = plane_state->ctl;
617 
618 	plane_ctl |= skl_plane_ctl_crtc(crtc_state);
619 
620 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
621 		plane_color_ctl = plane_state->color_ctl |
622 			glk_plane_color_ctl_crtc(crtc_state);
623 
624 	/* Sizes are 0 based */
625 	src_w--;
626 	src_h--;
627 
628 	keymax = (key->max_value & 0xffffff) | PLANE_KEYMAX_ALPHA(alpha);
629 
630 	keymsk = key->channel_mask & 0x7ffffff;
631 	if (alpha < 0xff)
632 		keymsk |= PLANE_KEYMSK_ALPHA_ENABLE;
633 
634 	/* The scaler will handle the output position */
635 	if (plane_state->scaler_id >= 0) {
636 		crtc_x = 0;
637 		crtc_y = 0;
638 	}
639 
640 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
641 
642 	intel_de_write_fw(dev_priv, PLANE_STRIDE(pipe, plane_id), stride);
643 	intel_de_write_fw(dev_priv, PLANE_POS(pipe, plane_id),
644 			  (crtc_y << 16) | crtc_x);
645 	intel_de_write_fw(dev_priv, PLANE_SIZE(pipe, plane_id),
646 			  (src_h << 16) | src_w);
647 
648 	if (INTEL_GEN(dev_priv) < 12)
649 		aux_dist |= aux_stride;
650 	intel_de_write_fw(dev_priv, PLANE_AUX_DIST(pipe, plane_id), aux_dist);
651 
652 	if (icl_is_hdr_plane(dev_priv, plane_id))
653 		intel_de_write_fw(dev_priv, PLANE_CUS_CTL(pipe, plane_id),
654 				  plane_state->cus_ctl);
655 
656 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
657 		intel_de_write_fw(dev_priv, PLANE_COLOR_CTL(pipe, plane_id),
658 				  plane_color_ctl);
659 
660 	if (fb->format->is_yuv && icl_is_hdr_plane(dev_priv, plane_id))
661 		icl_program_input_csc(plane, crtc_state, plane_state);
662 
663 	skl_write_plane_wm(plane, crtc_state);
664 
665 	intel_de_write_fw(dev_priv, PLANE_KEYVAL(pipe, plane_id),
666 			  key->min_value);
667 	intel_de_write_fw(dev_priv, PLANE_KEYMSK(pipe, plane_id), keymsk);
668 	intel_de_write_fw(dev_priv, PLANE_KEYMAX(pipe, plane_id), keymax);
669 
670 	intel_de_write_fw(dev_priv, PLANE_OFFSET(pipe, plane_id),
671 			  (y << 16) | x);
672 
673 	if (INTEL_GEN(dev_priv) < 11)
674 		intel_de_write_fw(dev_priv, PLANE_AUX_OFFSET(pipe, plane_id),
675 				  (plane_state->color_plane[1].y << 16) | plane_state->color_plane[1].x);
676 
677 	/*
678 	 * The control register self-arms if the plane was previously
679 	 * disabled. Try to make the plane enable atomic by writing
680 	 * the control register just before the surface register.
681 	 */
682 	intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl);
683 	intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id),
684 			  intel_plane_ggtt_offset(plane_state) + surf_addr);
685 
686 	if (plane_state->scaler_id >= 0)
687 		skl_program_scaler(plane, crtc_state, plane_state);
688 
689 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
690 }
691 
692 static void
693 skl_update_plane(struct intel_plane *plane,
694 		 const struct intel_crtc_state *crtc_state,
695 		 const struct intel_plane_state *plane_state)
696 {
697 	int color_plane = 0;
698 
699 	if (plane_state->planar_linked_plane && !plane_state->planar_slave)
700 		/* Program the UV plane on planar master */
701 		color_plane = 1;
702 
703 	skl_program_plane(plane, crtc_state, plane_state, color_plane);
704 }
705 static void
706 skl_disable_plane(struct intel_plane *plane,
707 		  const struct intel_crtc_state *crtc_state)
708 {
709 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
710 	enum plane_id plane_id = plane->id;
711 	enum pipe pipe = plane->pipe;
712 	unsigned long irqflags;
713 
714 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
715 
716 	if (icl_is_hdr_plane(dev_priv, plane_id))
717 		intel_de_write_fw(dev_priv, PLANE_CUS_CTL(pipe, plane_id), 0);
718 
719 	skl_write_plane_wm(plane, crtc_state);
720 
721 	intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), 0);
722 	intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id), 0);
723 
724 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
725 }
726 
727 static bool
728 skl_plane_get_hw_state(struct intel_plane *plane,
729 		       enum pipe *pipe)
730 {
731 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
732 	enum intel_display_power_domain power_domain;
733 	enum plane_id plane_id = plane->id;
734 	intel_wakeref_t wakeref;
735 	bool ret;
736 
737 	power_domain = POWER_DOMAIN_PIPE(plane->pipe);
738 	wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain);
739 	if (!wakeref)
740 		return false;
741 
742 	ret = intel_de_read(dev_priv, PLANE_CTL(plane->pipe, plane_id)) & PLANE_CTL_ENABLE;
743 
744 	*pipe = plane->pipe;
745 
746 	intel_display_power_put(dev_priv, power_domain, wakeref);
747 
748 	return ret;
749 }
750 
751 static void i9xx_plane_linear_gamma(u16 gamma[8])
752 {
753 	/* The points are not evenly spaced. */
754 	static const u8 in[8] = { 0, 1, 2, 4, 8, 16, 24, 32 };
755 	int i;
756 
757 	for (i = 0; i < 8; i++)
758 		gamma[i] = (in[i] << 8) / 32;
759 }
760 
761 static void
762 chv_update_csc(const struct intel_plane_state *plane_state)
763 {
764 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
765 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
766 	const struct drm_framebuffer *fb = plane_state->hw.fb;
767 	enum plane_id plane_id = plane->id;
768 	/*
769 	 * |r|   | c0 c1 c2 |   |cr|
770 	 * |g| = | c3 c4 c5 | x |y |
771 	 * |b|   | c6 c7 c8 |   |cb|
772 	 *
773 	 * Coefficients are s3.12.
774 	 *
775 	 * Cb and Cr apparently come in as signed already, and
776 	 * we always get full range data in on account of CLRC0/1.
777 	 */
778 	static const s16 csc_matrix[][9] = {
779 		/* BT.601 full range YCbCr -> full range RGB */
780 		[DRM_COLOR_YCBCR_BT601] = {
781 			 5743, 4096,     0,
782 			-2925, 4096, -1410,
783 			    0, 4096,  7258,
784 		},
785 		/* BT.709 full range YCbCr -> full range RGB */
786 		[DRM_COLOR_YCBCR_BT709] = {
787 			 6450, 4096,     0,
788 			-1917, 4096,  -767,
789 			    0, 4096,  7601,
790 		},
791 	};
792 	const s16 *csc = csc_matrix[plane_state->hw.color_encoding];
793 
794 	/* Seems RGB data bypasses the CSC always */
795 	if (!fb->format->is_yuv)
796 		return;
797 
798 	intel_de_write_fw(dev_priv, SPCSCYGOFF(plane_id),
799 			  SPCSC_OOFF(0) | SPCSC_IOFF(0));
800 	intel_de_write_fw(dev_priv, SPCSCCBOFF(plane_id),
801 			  SPCSC_OOFF(0) | SPCSC_IOFF(0));
802 	intel_de_write_fw(dev_priv, SPCSCCROFF(plane_id),
803 			  SPCSC_OOFF(0) | SPCSC_IOFF(0));
804 
805 	intel_de_write_fw(dev_priv, SPCSCC01(plane_id),
806 			  SPCSC_C1(csc[1]) | SPCSC_C0(csc[0]));
807 	intel_de_write_fw(dev_priv, SPCSCC23(plane_id),
808 			  SPCSC_C1(csc[3]) | SPCSC_C0(csc[2]));
809 	intel_de_write_fw(dev_priv, SPCSCC45(plane_id),
810 			  SPCSC_C1(csc[5]) | SPCSC_C0(csc[4]));
811 	intel_de_write_fw(dev_priv, SPCSCC67(plane_id),
812 			  SPCSC_C1(csc[7]) | SPCSC_C0(csc[6]));
813 	intel_de_write_fw(dev_priv, SPCSCC8(plane_id), SPCSC_C0(csc[8]));
814 
815 	intel_de_write_fw(dev_priv, SPCSCYGICLAMP(plane_id),
816 			  SPCSC_IMAX(1023) | SPCSC_IMIN(0));
817 	intel_de_write_fw(dev_priv, SPCSCCBICLAMP(plane_id),
818 			  SPCSC_IMAX(512) | SPCSC_IMIN(-512));
819 	intel_de_write_fw(dev_priv, SPCSCCRICLAMP(plane_id),
820 			  SPCSC_IMAX(512) | SPCSC_IMIN(-512));
821 
822 	intel_de_write_fw(dev_priv, SPCSCYGOCLAMP(plane_id),
823 			  SPCSC_OMAX(1023) | SPCSC_OMIN(0));
824 	intel_de_write_fw(dev_priv, SPCSCCBOCLAMP(plane_id),
825 			  SPCSC_OMAX(1023) | SPCSC_OMIN(0));
826 	intel_de_write_fw(dev_priv, SPCSCCROCLAMP(plane_id),
827 			  SPCSC_OMAX(1023) | SPCSC_OMIN(0));
828 }
829 
830 #define SIN_0 0
831 #define COS_0 1
832 
833 static void
834 vlv_update_clrc(const struct intel_plane_state *plane_state)
835 {
836 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
837 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
838 	const struct drm_framebuffer *fb = plane_state->hw.fb;
839 	enum pipe pipe = plane->pipe;
840 	enum plane_id plane_id = plane->id;
841 	int contrast, brightness, sh_scale, sh_sin, sh_cos;
842 
843 	if (fb->format->is_yuv &&
844 	    plane_state->hw.color_range == DRM_COLOR_YCBCR_LIMITED_RANGE) {
845 		/*
846 		 * Expand limited range to full range:
847 		 * Contrast is applied first and is used to expand Y range.
848 		 * Brightness is applied second and is used to remove the
849 		 * offset from Y. Saturation/hue is used to expand CbCr range.
850 		 */
851 		contrast = DIV_ROUND_CLOSEST(255 << 6, 235 - 16);
852 		brightness = -DIV_ROUND_CLOSEST(16 * 255, 235 - 16);
853 		sh_scale = DIV_ROUND_CLOSEST(128 << 7, 240 - 128);
854 		sh_sin = SIN_0 * sh_scale;
855 		sh_cos = COS_0 * sh_scale;
856 	} else {
857 		/* Pass-through everything. */
858 		contrast = 1 << 6;
859 		brightness = 0;
860 		sh_scale = 1 << 7;
861 		sh_sin = SIN_0 * sh_scale;
862 		sh_cos = COS_0 * sh_scale;
863 	}
864 
865 	/* FIXME these register are single buffered :( */
866 	intel_de_write_fw(dev_priv, SPCLRC0(pipe, plane_id),
867 			  SP_CONTRAST(contrast) | SP_BRIGHTNESS(brightness));
868 	intel_de_write_fw(dev_priv, SPCLRC1(pipe, plane_id),
869 			  SP_SH_SIN(sh_sin) | SP_SH_COS(sh_cos));
870 }
871 
872 static void
873 vlv_plane_ratio(const struct intel_crtc_state *crtc_state,
874 		const struct intel_plane_state *plane_state,
875 		unsigned int *num, unsigned int *den)
876 {
877 	u8 active_planes = crtc_state->active_planes & ~BIT(PLANE_CURSOR);
878 	const struct drm_framebuffer *fb = plane_state->hw.fb;
879 	unsigned int cpp = fb->format->cpp[0];
880 
881 	/*
882 	 * VLV bspec only considers cases where all three planes are
883 	 * enabled, and cases where the primary and one sprite is enabled.
884 	 * Let's assume the case with just two sprites enabled also
885 	 * maps to the latter case.
886 	 */
887 	if (hweight8(active_planes) == 3) {
888 		switch (cpp) {
889 		case 8:
890 			*num = 11;
891 			*den = 8;
892 			break;
893 		case 4:
894 			*num = 18;
895 			*den = 16;
896 			break;
897 		default:
898 			*num = 1;
899 			*den = 1;
900 			break;
901 		}
902 	} else if (hweight8(active_planes) == 2) {
903 		switch (cpp) {
904 		case 8:
905 			*num = 10;
906 			*den = 8;
907 			break;
908 		case 4:
909 			*num = 17;
910 			*den = 16;
911 			break;
912 		default:
913 			*num = 1;
914 			*den = 1;
915 			break;
916 		}
917 	} else {
918 		switch (cpp) {
919 		case 8:
920 			*num = 10;
921 			*den = 8;
922 			break;
923 		default:
924 			*num = 1;
925 			*den = 1;
926 			break;
927 		}
928 	}
929 }
930 
931 int vlv_plane_min_cdclk(const struct intel_crtc_state *crtc_state,
932 			const struct intel_plane_state *plane_state)
933 {
934 	unsigned int pixel_rate;
935 	unsigned int num, den;
936 
937 	/*
938 	 * Note that crtc_state->pixel_rate accounts for both
939 	 * horizontal and vertical panel fitter downscaling factors.
940 	 * Pre-HSW bspec tells us to only consider the horizontal
941 	 * downscaling factor here. We ignore that and just consider
942 	 * both for simplicity.
943 	 */
944 	pixel_rate = crtc_state->pixel_rate;
945 
946 	vlv_plane_ratio(crtc_state, plane_state, &num, &den);
947 
948 	return DIV_ROUND_UP(pixel_rate * num, den);
949 }
950 
951 static u32 vlv_sprite_ctl_crtc(const struct intel_crtc_state *crtc_state)
952 {
953 	u32 sprctl = 0;
954 
955 	if (crtc_state->gamma_enable)
956 		sprctl |= SP_GAMMA_ENABLE;
957 
958 	return sprctl;
959 }
960 
961 static u32 vlv_sprite_ctl(const struct intel_crtc_state *crtc_state,
962 			  const struct intel_plane_state *plane_state)
963 {
964 	const struct drm_framebuffer *fb = plane_state->hw.fb;
965 	unsigned int rotation = plane_state->hw.rotation;
966 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
967 	u32 sprctl;
968 
969 	sprctl = SP_ENABLE;
970 
971 	switch (fb->format->format) {
972 	case DRM_FORMAT_YUYV:
973 		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YUYV;
974 		break;
975 	case DRM_FORMAT_YVYU:
976 		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YVYU;
977 		break;
978 	case DRM_FORMAT_UYVY:
979 		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_UYVY;
980 		break;
981 	case DRM_FORMAT_VYUY:
982 		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_VYUY;
983 		break;
984 	case DRM_FORMAT_C8:
985 		sprctl |= SP_FORMAT_8BPP;
986 		break;
987 	case DRM_FORMAT_RGB565:
988 		sprctl |= SP_FORMAT_BGR565;
989 		break;
990 	case DRM_FORMAT_XRGB8888:
991 		sprctl |= SP_FORMAT_BGRX8888;
992 		break;
993 	case DRM_FORMAT_ARGB8888:
994 		sprctl |= SP_FORMAT_BGRA8888;
995 		break;
996 	case DRM_FORMAT_XBGR2101010:
997 		sprctl |= SP_FORMAT_RGBX1010102;
998 		break;
999 	case DRM_FORMAT_ABGR2101010:
1000 		sprctl |= SP_FORMAT_RGBA1010102;
1001 		break;
1002 	case DRM_FORMAT_XRGB2101010:
1003 		sprctl |= SP_FORMAT_BGRX1010102;
1004 		break;
1005 	case DRM_FORMAT_ARGB2101010:
1006 		sprctl |= SP_FORMAT_BGRA1010102;
1007 		break;
1008 	case DRM_FORMAT_XBGR8888:
1009 		sprctl |= SP_FORMAT_RGBX8888;
1010 		break;
1011 	case DRM_FORMAT_ABGR8888:
1012 		sprctl |= SP_FORMAT_RGBA8888;
1013 		break;
1014 	default:
1015 		MISSING_CASE(fb->format->format);
1016 		return 0;
1017 	}
1018 
1019 	if (plane_state->hw.color_encoding == DRM_COLOR_YCBCR_BT709)
1020 		sprctl |= SP_YUV_FORMAT_BT709;
1021 
1022 	if (fb->modifier == I915_FORMAT_MOD_X_TILED)
1023 		sprctl |= SP_TILED;
1024 
1025 	if (rotation & DRM_MODE_ROTATE_180)
1026 		sprctl |= SP_ROTATE_180;
1027 
1028 	if (rotation & DRM_MODE_REFLECT_X)
1029 		sprctl |= SP_MIRROR;
1030 
1031 	if (key->flags & I915_SET_COLORKEY_SOURCE)
1032 		sprctl |= SP_SOURCE_KEY;
1033 
1034 	return sprctl;
1035 }
1036 
1037 static void vlv_update_gamma(const struct intel_plane_state *plane_state)
1038 {
1039 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
1040 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1041 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1042 	enum pipe pipe = plane->pipe;
1043 	enum plane_id plane_id = plane->id;
1044 	u16 gamma[8];
1045 	int i;
1046 
1047 	/* Seems RGB data bypasses the gamma always */
1048 	if (!fb->format->is_yuv)
1049 		return;
1050 
1051 	i9xx_plane_linear_gamma(gamma);
1052 
1053 	/* FIXME these register are single buffered :( */
1054 	/* The two end points are implicit (0.0 and 1.0) */
1055 	for (i = 1; i < 8 - 1; i++)
1056 		intel_de_write_fw(dev_priv, SPGAMC(pipe, plane_id, i - 1),
1057 				  gamma[i] << 16 | gamma[i] << 8 | gamma[i]);
1058 }
1059 
1060 static void
1061 vlv_update_plane(struct intel_plane *plane,
1062 		 const struct intel_crtc_state *crtc_state,
1063 		 const struct intel_plane_state *plane_state)
1064 {
1065 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1066 	enum pipe pipe = plane->pipe;
1067 	enum plane_id plane_id = plane->id;
1068 	u32 sprsurf_offset = plane_state->color_plane[0].offset;
1069 	u32 linear_offset;
1070 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
1071 	int crtc_x = plane_state->uapi.dst.x1;
1072 	int crtc_y = plane_state->uapi.dst.y1;
1073 	u32 crtc_w = drm_rect_width(&plane_state->uapi.dst);
1074 	u32 crtc_h = drm_rect_height(&plane_state->uapi.dst);
1075 	u32 x = plane_state->color_plane[0].x;
1076 	u32 y = plane_state->color_plane[0].y;
1077 	unsigned long irqflags;
1078 	u32 sprctl;
1079 
1080 	sprctl = plane_state->ctl | vlv_sprite_ctl_crtc(crtc_state);
1081 
1082 	/* Sizes are 0 based */
1083 	crtc_w--;
1084 	crtc_h--;
1085 
1086 	linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
1087 
1088 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
1089 
1090 	intel_de_write_fw(dev_priv, SPSTRIDE(pipe, plane_id),
1091 			  plane_state->color_plane[0].stride);
1092 	intel_de_write_fw(dev_priv, SPPOS(pipe, plane_id),
1093 			  (crtc_y << 16) | crtc_x);
1094 	intel_de_write_fw(dev_priv, SPSIZE(pipe, plane_id),
1095 			  (crtc_h << 16) | crtc_w);
1096 	intel_de_write_fw(dev_priv, SPCONSTALPHA(pipe, plane_id), 0);
1097 
1098 	if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B)
1099 		chv_update_csc(plane_state);
1100 
1101 	if (key->flags) {
1102 		intel_de_write_fw(dev_priv, SPKEYMINVAL(pipe, plane_id),
1103 				  key->min_value);
1104 		intel_de_write_fw(dev_priv, SPKEYMSK(pipe, plane_id),
1105 				  key->channel_mask);
1106 		intel_de_write_fw(dev_priv, SPKEYMAXVAL(pipe, plane_id),
1107 				  key->max_value);
1108 	}
1109 
1110 	intel_de_write_fw(dev_priv, SPLINOFF(pipe, plane_id), linear_offset);
1111 	intel_de_write_fw(dev_priv, SPTILEOFF(pipe, plane_id), (y << 16) | x);
1112 
1113 	/*
1114 	 * The control register self-arms if the plane was previously
1115 	 * disabled. Try to make the plane enable atomic by writing
1116 	 * the control register just before the surface register.
1117 	 */
1118 	intel_de_write_fw(dev_priv, SPCNTR(pipe, plane_id), sprctl);
1119 	intel_de_write_fw(dev_priv, SPSURF(pipe, plane_id),
1120 			  intel_plane_ggtt_offset(plane_state) + sprsurf_offset);
1121 
1122 	vlv_update_clrc(plane_state);
1123 	vlv_update_gamma(plane_state);
1124 
1125 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
1126 }
1127 
1128 static void
1129 vlv_disable_plane(struct intel_plane *plane,
1130 		  const struct intel_crtc_state *crtc_state)
1131 {
1132 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1133 	enum pipe pipe = plane->pipe;
1134 	enum plane_id plane_id = plane->id;
1135 	unsigned long irqflags;
1136 
1137 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
1138 
1139 	intel_de_write_fw(dev_priv, SPCNTR(pipe, plane_id), 0);
1140 	intel_de_write_fw(dev_priv, SPSURF(pipe, plane_id), 0);
1141 
1142 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
1143 }
1144 
1145 static bool
1146 vlv_plane_get_hw_state(struct intel_plane *plane,
1147 		       enum pipe *pipe)
1148 {
1149 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1150 	enum intel_display_power_domain power_domain;
1151 	enum plane_id plane_id = plane->id;
1152 	intel_wakeref_t wakeref;
1153 	bool ret;
1154 
1155 	power_domain = POWER_DOMAIN_PIPE(plane->pipe);
1156 	wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain);
1157 	if (!wakeref)
1158 		return false;
1159 
1160 	ret = intel_de_read(dev_priv, SPCNTR(plane->pipe, plane_id)) & SP_ENABLE;
1161 
1162 	*pipe = plane->pipe;
1163 
1164 	intel_display_power_put(dev_priv, power_domain, wakeref);
1165 
1166 	return ret;
1167 }
1168 
1169 static void ivb_plane_ratio(const struct intel_crtc_state *crtc_state,
1170 			    const struct intel_plane_state *plane_state,
1171 			    unsigned int *num, unsigned int *den)
1172 {
1173 	u8 active_planes = crtc_state->active_planes & ~BIT(PLANE_CURSOR);
1174 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1175 	unsigned int cpp = fb->format->cpp[0];
1176 
1177 	if (hweight8(active_planes) == 2) {
1178 		switch (cpp) {
1179 		case 8:
1180 			*num = 10;
1181 			*den = 8;
1182 			break;
1183 		case 4:
1184 			*num = 17;
1185 			*den = 16;
1186 			break;
1187 		default:
1188 			*num = 1;
1189 			*den = 1;
1190 			break;
1191 		}
1192 	} else {
1193 		switch (cpp) {
1194 		case 8:
1195 			*num = 9;
1196 			*den = 8;
1197 			break;
1198 		default:
1199 			*num = 1;
1200 			*den = 1;
1201 			break;
1202 		}
1203 	}
1204 }
1205 
1206 static void ivb_plane_ratio_scaling(const struct intel_crtc_state *crtc_state,
1207 				    const struct intel_plane_state *plane_state,
1208 				    unsigned int *num, unsigned int *den)
1209 {
1210 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1211 	unsigned int cpp = fb->format->cpp[0];
1212 
1213 	switch (cpp) {
1214 	case 8:
1215 		*num = 12;
1216 		*den = 8;
1217 		break;
1218 	case 4:
1219 		*num = 19;
1220 		*den = 16;
1221 		break;
1222 	case 2:
1223 		*num = 33;
1224 		*den = 32;
1225 		break;
1226 	default:
1227 		*num = 1;
1228 		*den = 1;
1229 		break;
1230 	}
1231 }
1232 
1233 int ivb_plane_min_cdclk(const struct intel_crtc_state *crtc_state,
1234 			const struct intel_plane_state *plane_state)
1235 {
1236 	unsigned int pixel_rate;
1237 	unsigned int num, den;
1238 
1239 	/*
1240 	 * Note that crtc_state->pixel_rate accounts for both
1241 	 * horizontal and vertical panel fitter downscaling factors.
1242 	 * Pre-HSW bspec tells us to only consider the horizontal
1243 	 * downscaling factor here. We ignore that and just consider
1244 	 * both for simplicity.
1245 	 */
1246 	pixel_rate = crtc_state->pixel_rate;
1247 
1248 	ivb_plane_ratio(crtc_state, plane_state, &num, &den);
1249 
1250 	return DIV_ROUND_UP(pixel_rate * num, den);
1251 }
1252 
1253 static int ivb_sprite_min_cdclk(const struct intel_crtc_state *crtc_state,
1254 				const struct intel_plane_state *plane_state)
1255 {
1256 	unsigned int src_w, dst_w, pixel_rate;
1257 	unsigned int num, den;
1258 
1259 	/*
1260 	 * Note that crtc_state->pixel_rate accounts for both
1261 	 * horizontal and vertical panel fitter downscaling factors.
1262 	 * Pre-HSW bspec tells us to only consider the horizontal
1263 	 * downscaling factor here. We ignore that and just consider
1264 	 * both for simplicity.
1265 	 */
1266 	pixel_rate = crtc_state->pixel_rate;
1267 
1268 	src_w = drm_rect_width(&plane_state->uapi.src) >> 16;
1269 	dst_w = drm_rect_width(&plane_state->uapi.dst);
1270 
1271 	if (src_w != dst_w)
1272 		ivb_plane_ratio_scaling(crtc_state, plane_state, &num, &den);
1273 	else
1274 		ivb_plane_ratio(crtc_state, plane_state, &num, &den);
1275 
1276 	/* Horizontal downscaling limits the maximum pixel rate */
1277 	dst_w = min(src_w, dst_w);
1278 
1279 	return DIV_ROUND_UP_ULL(mul_u32_u32(pixel_rate, num * src_w),
1280 				den * dst_w);
1281 }
1282 
1283 static void hsw_plane_ratio(const struct intel_crtc_state *crtc_state,
1284 			    const struct intel_plane_state *plane_state,
1285 			    unsigned int *num, unsigned int *den)
1286 {
1287 	u8 active_planes = crtc_state->active_planes & ~BIT(PLANE_CURSOR);
1288 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1289 	unsigned int cpp = fb->format->cpp[0];
1290 
1291 	if (hweight8(active_planes) == 2) {
1292 		switch (cpp) {
1293 		case 8:
1294 			*num = 10;
1295 			*den = 8;
1296 			break;
1297 		default:
1298 			*num = 1;
1299 			*den = 1;
1300 			break;
1301 		}
1302 	} else {
1303 		switch (cpp) {
1304 		case 8:
1305 			*num = 9;
1306 			*den = 8;
1307 			break;
1308 		default:
1309 			*num = 1;
1310 			*den = 1;
1311 			break;
1312 		}
1313 	}
1314 }
1315 
1316 int hsw_plane_min_cdclk(const struct intel_crtc_state *crtc_state,
1317 			const struct intel_plane_state *plane_state)
1318 {
1319 	unsigned int pixel_rate = crtc_state->pixel_rate;
1320 	unsigned int num, den;
1321 
1322 	hsw_plane_ratio(crtc_state, plane_state, &num, &den);
1323 
1324 	return DIV_ROUND_UP(pixel_rate * num, den);
1325 }
1326 
1327 static u32 ivb_sprite_ctl_crtc(const struct intel_crtc_state *crtc_state)
1328 {
1329 	u32 sprctl = 0;
1330 
1331 	if (crtc_state->gamma_enable)
1332 		sprctl |= SPRITE_GAMMA_ENABLE;
1333 
1334 	if (crtc_state->csc_enable)
1335 		sprctl |= SPRITE_PIPE_CSC_ENABLE;
1336 
1337 	return sprctl;
1338 }
1339 
1340 static bool ivb_need_sprite_gamma(const struct intel_plane_state *plane_state)
1341 {
1342 	struct drm_i915_private *dev_priv =
1343 		to_i915(plane_state->uapi.plane->dev);
1344 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1345 
1346 	return fb->format->cpp[0] == 8 &&
1347 		(IS_IVYBRIDGE(dev_priv) || IS_HASWELL(dev_priv));
1348 }
1349 
1350 static u32 ivb_sprite_ctl(const struct intel_crtc_state *crtc_state,
1351 			  const struct intel_plane_state *plane_state)
1352 {
1353 	struct drm_i915_private *dev_priv =
1354 		to_i915(plane_state->uapi.plane->dev);
1355 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1356 	unsigned int rotation = plane_state->hw.rotation;
1357 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
1358 	u32 sprctl;
1359 
1360 	sprctl = SPRITE_ENABLE;
1361 
1362 	if (IS_IVYBRIDGE(dev_priv))
1363 		sprctl |= SPRITE_TRICKLE_FEED_DISABLE;
1364 
1365 	switch (fb->format->format) {
1366 	case DRM_FORMAT_XBGR8888:
1367 		sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
1368 		break;
1369 	case DRM_FORMAT_XRGB8888:
1370 		sprctl |= SPRITE_FORMAT_RGBX888;
1371 		break;
1372 	case DRM_FORMAT_XBGR2101010:
1373 		sprctl |= SPRITE_FORMAT_RGBX101010 | SPRITE_RGB_ORDER_RGBX;
1374 		break;
1375 	case DRM_FORMAT_XRGB2101010:
1376 		sprctl |= SPRITE_FORMAT_RGBX101010;
1377 		break;
1378 	case DRM_FORMAT_XBGR16161616F:
1379 		sprctl |= SPRITE_FORMAT_RGBX161616 | SPRITE_RGB_ORDER_RGBX;
1380 		break;
1381 	case DRM_FORMAT_XRGB16161616F:
1382 		sprctl |= SPRITE_FORMAT_RGBX161616;
1383 		break;
1384 	case DRM_FORMAT_YUYV:
1385 		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YUYV;
1386 		break;
1387 	case DRM_FORMAT_YVYU:
1388 		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YVYU;
1389 		break;
1390 	case DRM_FORMAT_UYVY:
1391 		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_UYVY;
1392 		break;
1393 	case DRM_FORMAT_VYUY:
1394 		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_VYUY;
1395 		break;
1396 	default:
1397 		MISSING_CASE(fb->format->format);
1398 		return 0;
1399 	}
1400 
1401 	if (!ivb_need_sprite_gamma(plane_state))
1402 		sprctl |= SPRITE_INT_GAMMA_DISABLE;
1403 
1404 	if (plane_state->hw.color_encoding == DRM_COLOR_YCBCR_BT709)
1405 		sprctl |= SPRITE_YUV_TO_RGB_CSC_FORMAT_BT709;
1406 
1407 	if (plane_state->hw.color_range == DRM_COLOR_YCBCR_FULL_RANGE)
1408 		sprctl |= SPRITE_YUV_RANGE_CORRECTION_DISABLE;
1409 
1410 	if (fb->modifier == I915_FORMAT_MOD_X_TILED)
1411 		sprctl |= SPRITE_TILED;
1412 
1413 	if (rotation & DRM_MODE_ROTATE_180)
1414 		sprctl |= SPRITE_ROTATE_180;
1415 
1416 	if (key->flags & I915_SET_COLORKEY_DESTINATION)
1417 		sprctl |= SPRITE_DEST_KEY;
1418 	else if (key->flags & I915_SET_COLORKEY_SOURCE)
1419 		sprctl |= SPRITE_SOURCE_KEY;
1420 
1421 	return sprctl;
1422 }
1423 
1424 static void ivb_sprite_linear_gamma(const struct intel_plane_state *plane_state,
1425 				    u16 gamma[18])
1426 {
1427 	int scale, i;
1428 
1429 	/*
1430 	 * WaFP16GammaEnabling:ivb,hsw
1431 	 * "Workaround : When using the 64-bit format, the sprite output
1432 	 *  on each color channel has one quarter amplitude. It can be
1433 	 *  brought up to full amplitude by using sprite internal gamma
1434 	 *  correction, pipe gamma correction, or pipe color space
1435 	 *  conversion to multiply the sprite output by four."
1436 	 */
1437 	scale = 4;
1438 
1439 	for (i = 0; i < 16; i++)
1440 		gamma[i] = min((scale * i << 10) / 16, (1 << 10) - 1);
1441 
1442 	gamma[i] = min((scale * i << 10) / 16, 1 << 10);
1443 	i++;
1444 
1445 	gamma[i] = 3 << 10;
1446 	i++;
1447 }
1448 
1449 static void ivb_update_gamma(const struct intel_plane_state *plane_state)
1450 {
1451 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
1452 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1453 	enum pipe pipe = plane->pipe;
1454 	u16 gamma[18];
1455 	int i;
1456 
1457 	if (!ivb_need_sprite_gamma(plane_state))
1458 		return;
1459 
1460 	ivb_sprite_linear_gamma(plane_state, gamma);
1461 
1462 	/* FIXME these register are single buffered :( */
1463 	for (i = 0; i < 16; i++)
1464 		intel_de_write_fw(dev_priv, SPRGAMC(pipe, i),
1465 				  gamma[i] << 20 | gamma[i] << 10 | gamma[i]);
1466 
1467 	intel_de_write_fw(dev_priv, SPRGAMC16(pipe, 0), gamma[i]);
1468 	intel_de_write_fw(dev_priv, SPRGAMC16(pipe, 1), gamma[i]);
1469 	intel_de_write_fw(dev_priv, SPRGAMC16(pipe, 2), gamma[i]);
1470 	i++;
1471 
1472 	intel_de_write_fw(dev_priv, SPRGAMC17(pipe, 0), gamma[i]);
1473 	intel_de_write_fw(dev_priv, SPRGAMC17(pipe, 1), gamma[i]);
1474 	intel_de_write_fw(dev_priv, SPRGAMC17(pipe, 2), gamma[i]);
1475 	i++;
1476 }
1477 
1478 static void
1479 ivb_update_plane(struct intel_plane *plane,
1480 		 const struct intel_crtc_state *crtc_state,
1481 		 const struct intel_plane_state *plane_state)
1482 {
1483 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1484 	enum pipe pipe = plane->pipe;
1485 	u32 sprsurf_offset = plane_state->color_plane[0].offset;
1486 	u32 linear_offset;
1487 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
1488 	int crtc_x = plane_state->uapi.dst.x1;
1489 	int crtc_y = plane_state->uapi.dst.y1;
1490 	u32 crtc_w = drm_rect_width(&plane_state->uapi.dst);
1491 	u32 crtc_h = drm_rect_height(&plane_state->uapi.dst);
1492 	u32 x = plane_state->color_plane[0].x;
1493 	u32 y = plane_state->color_plane[0].y;
1494 	u32 src_w = drm_rect_width(&plane_state->uapi.src) >> 16;
1495 	u32 src_h = drm_rect_height(&plane_state->uapi.src) >> 16;
1496 	u32 sprctl, sprscale = 0;
1497 	unsigned long irqflags;
1498 
1499 	sprctl = plane_state->ctl | ivb_sprite_ctl_crtc(crtc_state);
1500 
1501 	/* Sizes are 0 based */
1502 	src_w--;
1503 	src_h--;
1504 	crtc_w--;
1505 	crtc_h--;
1506 
1507 	if (crtc_w != src_w || crtc_h != src_h)
1508 		sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h;
1509 
1510 	linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
1511 
1512 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
1513 
1514 	intel_de_write_fw(dev_priv, SPRSTRIDE(pipe),
1515 			  plane_state->color_plane[0].stride);
1516 	intel_de_write_fw(dev_priv, SPRPOS(pipe), (crtc_y << 16) | crtc_x);
1517 	intel_de_write_fw(dev_priv, SPRSIZE(pipe), (crtc_h << 16) | crtc_w);
1518 	if (IS_IVYBRIDGE(dev_priv))
1519 		intel_de_write_fw(dev_priv, SPRSCALE(pipe), sprscale);
1520 
1521 	if (key->flags) {
1522 		intel_de_write_fw(dev_priv, SPRKEYVAL(pipe), key->min_value);
1523 		intel_de_write_fw(dev_priv, SPRKEYMSK(pipe),
1524 				  key->channel_mask);
1525 		intel_de_write_fw(dev_priv, SPRKEYMAX(pipe), key->max_value);
1526 	}
1527 
1528 	/* HSW consolidates SPRTILEOFF and SPRLINOFF into a single SPROFFSET
1529 	 * register */
1530 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
1531 		intel_de_write_fw(dev_priv, SPROFFSET(pipe), (y << 16) | x);
1532 	} else {
1533 		intel_de_write_fw(dev_priv, SPRLINOFF(pipe), linear_offset);
1534 		intel_de_write_fw(dev_priv, SPRTILEOFF(pipe), (y << 16) | x);
1535 	}
1536 
1537 	/*
1538 	 * The control register self-arms if the plane was previously
1539 	 * disabled. Try to make the plane enable atomic by writing
1540 	 * the control register just before the surface register.
1541 	 */
1542 	intel_de_write_fw(dev_priv, SPRCTL(pipe), sprctl);
1543 	intel_de_write_fw(dev_priv, SPRSURF(pipe),
1544 			  intel_plane_ggtt_offset(plane_state) + sprsurf_offset);
1545 
1546 	ivb_update_gamma(plane_state);
1547 
1548 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
1549 }
1550 
1551 static void
1552 ivb_disable_plane(struct intel_plane *plane,
1553 		  const struct intel_crtc_state *crtc_state)
1554 {
1555 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1556 	enum pipe pipe = plane->pipe;
1557 	unsigned long irqflags;
1558 
1559 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
1560 
1561 	intel_de_write_fw(dev_priv, SPRCTL(pipe), 0);
1562 	/* Disable the scaler */
1563 	if (IS_IVYBRIDGE(dev_priv))
1564 		intel_de_write_fw(dev_priv, SPRSCALE(pipe), 0);
1565 	intel_de_write_fw(dev_priv, SPRSURF(pipe), 0);
1566 
1567 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
1568 }
1569 
1570 static bool
1571 ivb_plane_get_hw_state(struct intel_plane *plane,
1572 		       enum pipe *pipe)
1573 {
1574 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1575 	enum intel_display_power_domain power_domain;
1576 	intel_wakeref_t wakeref;
1577 	bool ret;
1578 
1579 	power_domain = POWER_DOMAIN_PIPE(plane->pipe);
1580 	wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain);
1581 	if (!wakeref)
1582 		return false;
1583 
1584 	ret =  intel_de_read(dev_priv, SPRCTL(plane->pipe)) & SPRITE_ENABLE;
1585 
1586 	*pipe = plane->pipe;
1587 
1588 	intel_display_power_put(dev_priv, power_domain, wakeref);
1589 
1590 	return ret;
1591 }
1592 
1593 static int g4x_sprite_min_cdclk(const struct intel_crtc_state *crtc_state,
1594 				const struct intel_plane_state *plane_state)
1595 {
1596 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1597 	unsigned int hscale, pixel_rate;
1598 	unsigned int limit, decimate;
1599 
1600 	/*
1601 	 * Note that crtc_state->pixel_rate accounts for both
1602 	 * horizontal and vertical panel fitter downscaling factors.
1603 	 * Pre-HSW bspec tells us to only consider the horizontal
1604 	 * downscaling factor here. We ignore that and just consider
1605 	 * both for simplicity.
1606 	 */
1607 	pixel_rate = crtc_state->pixel_rate;
1608 
1609 	/* Horizontal downscaling limits the maximum pixel rate */
1610 	hscale = drm_rect_calc_hscale(&plane_state->uapi.src,
1611 				      &plane_state->uapi.dst,
1612 				      0, INT_MAX);
1613 	if (hscale < 0x10000)
1614 		return pixel_rate;
1615 
1616 	/* Decimation steps at 2x,4x,8x,16x */
1617 	decimate = ilog2(hscale >> 16);
1618 	hscale >>= decimate;
1619 
1620 	/* Starting limit is 90% of cdclk */
1621 	limit = 9;
1622 
1623 	/* -10% per decimation step */
1624 	limit -= decimate;
1625 
1626 	/* -10% for RGB */
1627 	if (fb->format->cpp[0] >= 4)
1628 		limit--; /* -10% for RGB */
1629 
1630 	/*
1631 	 * We should also do -10% if sprite scaling is enabled
1632 	 * on the other pipe, but we can't really check for that,
1633 	 * so we ignore it.
1634 	 */
1635 
1636 	return DIV_ROUND_UP_ULL(mul_u32_u32(pixel_rate, 10 * hscale),
1637 				limit << 16);
1638 }
1639 
1640 static unsigned int
1641 g4x_sprite_max_stride(struct intel_plane *plane,
1642 		      u32 pixel_format, u64 modifier,
1643 		      unsigned int rotation)
1644 {
1645 	return 16384;
1646 }
1647 
1648 static u32 g4x_sprite_ctl_crtc(const struct intel_crtc_state *crtc_state)
1649 {
1650 	u32 dvscntr = 0;
1651 
1652 	if (crtc_state->gamma_enable)
1653 		dvscntr |= DVS_GAMMA_ENABLE;
1654 
1655 	if (crtc_state->csc_enable)
1656 		dvscntr |= DVS_PIPE_CSC_ENABLE;
1657 
1658 	return dvscntr;
1659 }
1660 
1661 static u32 g4x_sprite_ctl(const struct intel_crtc_state *crtc_state,
1662 			  const struct intel_plane_state *plane_state)
1663 {
1664 	struct drm_i915_private *dev_priv =
1665 		to_i915(plane_state->uapi.plane->dev);
1666 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1667 	unsigned int rotation = plane_state->hw.rotation;
1668 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
1669 	u32 dvscntr;
1670 
1671 	dvscntr = DVS_ENABLE;
1672 
1673 	if (IS_GEN(dev_priv, 6))
1674 		dvscntr |= DVS_TRICKLE_FEED_DISABLE;
1675 
1676 	switch (fb->format->format) {
1677 	case DRM_FORMAT_XBGR8888:
1678 		dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_XBGR;
1679 		break;
1680 	case DRM_FORMAT_XRGB8888:
1681 		dvscntr |= DVS_FORMAT_RGBX888;
1682 		break;
1683 	case DRM_FORMAT_XBGR2101010:
1684 		dvscntr |= DVS_FORMAT_RGBX101010 | DVS_RGB_ORDER_XBGR;
1685 		break;
1686 	case DRM_FORMAT_XRGB2101010:
1687 		dvscntr |= DVS_FORMAT_RGBX101010;
1688 		break;
1689 	case DRM_FORMAT_XBGR16161616F:
1690 		dvscntr |= DVS_FORMAT_RGBX161616 | DVS_RGB_ORDER_XBGR;
1691 		break;
1692 	case DRM_FORMAT_XRGB16161616F:
1693 		dvscntr |= DVS_FORMAT_RGBX161616;
1694 		break;
1695 	case DRM_FORMAT_YUYV:
1696 		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YUYV;
1697 		break;
1698 	case DRM_FORMAT_YVYU:
1699 		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YVYU;
1700 		break;
1701 	case DRM_FORMAT_UYVY:
1702 		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_UYVY;
1703 		break;
1704 	case DRM_FORMAT_VYUY:
1705 		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_VYUY;
1706 		break;
1707 	default:
1708 		MISSING_CASE(fb->format->format);
1709 		return 0;
1710 	}
1711 
1712 	if (plane_state->hw.color_encoding == DRM_COLOR_YCBCR_BT709)
1713 		dvscntr |= DVS_YUV_FORMAT_BT709;
1714 
1715 	if (plane_state->hw.color_range == DRM_COLOR_YCBCR_FULL_RANGE)
1716 		dvscntr |= DVS_YUV_RANGE_CORRECTION_DISABLE;
1717 
1718 	if (fb->modifier == I915_FORMAT_MOD_X_TILED)
1719 		dvscntr |= DVS_TILED;
1720 
1721 	if (rotation & DRM_MODE_ROTATE_180)
1722 		dvscntr |= DVS_ROTATE_180;
1723 
1724 	if (key->flags & I915_SET_COLORKEY_DESTINATION)
1725 		dvscntr |= DVS_DEST_KEY;
1726 	else if (key->flags & I915_SET_COLORKEY_SOURCE)
1727 		dvscntr |= DVS_SOURCE_KEY;
1728 
1729 	return dvscntr;
1730 }
1731 
1732 static void g4x_update_gamma(const struct intel_plane_state *plane_state)
1733 {
1734 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
1735 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1736 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1737 	enum pipe pipe = plane->pipe;
1738 	u16 gamma[8];
1739 	int i;
1740 
1741 	/* Seems RGB data bypasses the gamma always */
1742 	if (!fb->format->is_yuv)
1743 		return;
1744 
1745 	i9xx_plane_linear_gamma(gamma);
1746 
1747 	/* FIXME these register are single buffered :( */
1748 	/* The two end points are implicit (0.0 and 1.0) */
1749 	for (i = 1; i < 8 - 1; i++)
1750 		intel_de_write_fw(dev_priv, DVSGAMC_G4X(pipe, i - 1),
1751 				  gamma[i] << 16 | gamma[i] << 8 | gamma[i]);
1752 }
1753 
1754 static void ilk_sprite_linear_gamma(u16 gamma[17])
1755 {
1756 	int i;
1757 
1758 	for (i = 0; i < 17; i++)
1759 		gamma[i] = (i << 10) / 16;
1760 }
1761 
1762 static void ilk_update_gamma(const struct intel_plane_state *plane_state)
1763 {
1764 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
1765 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1766 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1767 	enum pipe pipe = plane->pipe;
1768 	u16 gamma[17];
1769 	int i;
1770 
1771 	/* Seems RGB data bypasses the gamma always */
1772 	if (!fb->format->is_yuv)
1773 		return;
1774 
1775 	ilk_sprite_linear_gamma(gamma);
1776 
1777 	/* FIXME these register are single buffered :( */
1778 	for (i = 0; i < 16; i++)
1779 		intel_de_write_fw(dev_priv, DVSGAMC_ILK(pipe, i),
1780 				  gamma[i] << 20 | gamma[i] << 10 | gamma[i]);
1781 
1782 	intel_de_write_fw(dev_priv, DVSGAMCMAX_ILK(pipe, 0), gamma[i]);
1783 	intel_de_write_fw(dev_priv, DVSGAMCMAX_ILK(pipe, 1), gamma[i]);
1784 	intel_de_write_fw(dev_priv, DVSGAMCMAX_ILK(pipe, 2), gamma[i]);
1785 	i++;
1786 }
1787 
1788 static void
1789 g4x_update_plane(struct intel_plane *plane,
1790 		 const struct intel_crtc_state *crtc_state,
1791 		 const struct intel_plane_state *plane_state)
1792 {
1793 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1794 	enum pipe pipe = plane->pipe;
1795 	u32 dvssurf_offset = plane_state->color_plane[0].offset;
1796 	u32 linear_offset;
1797 	const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
1798 	int crtc_x = plane_state->uapi.dst.x1;
1799 	int crtc_y = plane_state->uapi.dst.y1;
1800 	u32 crtc_w = drm_rect_width(&plane_state->uapi.dst);
1801 	u32 crtc_h = drm_rect_height(&plane_state->uapi.dst);
1802 	u32 x = plane_state->color_plane[0].x;
1803 	u32 y = plane_state->color_plane[0].y;
1804 	u32 src_w = drm_rect_width(&plane_state->uapi.src) >> 16;
1805 	u32 src_h = drm_rect_height(&plane_state->uapi.src) >> 16;
1806 	u32 dvscntr, dvsscale = 0;
1807 	unsigned long irqflags;
1808 
1809 	dvscntr = plane_state->ctl | g4x_sprite_ctl_crtc(crtc_state);
1810 
1811 	/* Sizes are 0 based */
1812 	src_w--;
1813 	src_h--;
1814 	crtc_w--;
1815 	crtc_h--;
1816 
1817 	if (crtc_w != src_w || crtc_h != src_h)
1818 		dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h;
1819 
1820 	linear_offset = intel_fb_xy_to_linear(x, y, plane_state, 0);
1821 
1822 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
1823 
1824 	intel_de_write_fw(dev_priv, DVSSTRIDE(pipe),
1825 			  plane_state->color_plane[0].stride);
1826 	intel_de_write_fw(dev_priv, DVSPOS(pipe), (crtc_y << 16) | crtc_x);
1827 	intel_de_write_fw(dev_priv, DVSSIZE(pipe), (crtc_h << 16) | crtc_w);
1828 	intel_de_write_fw(dev_priv, DVSSCALE(pipe), dvsscale);
1829 
1830 	if (key->flags) {
1831 		intel_de_write_fw(dev_priv, DVSKEYVAL(pipe), key->min_value);
1832 		intel_de_write_fw(dev_priv, DVSKEYMSK(pipe),
1833 				  key->channel_mask);
1834 		intel_de_write_fw(dev_priv, DVSKEYMAX(pipe), key->max_value);
1835 	}
1836 
1837 	intel_de_write_fw(dev_priv, DVSLINOFF(pipe), linear_offset);
1838 	intel_de_write_fw(dev_priv, DVSTILEOFF(pipe), (y << 16) | x);
1839 
1840 	/*
1841 	 * The control register self-arms if the plane was previously
1842 	 * disabled. Try to make the plane enable atomic by writing
1843 	 * the control register just before the surface register.
1844 	 */
1845 	intel_de_write_fw(dev_priv, DVSCNTR(pipe), dvscntr);
1846 	intel_de_write_fw(dev_priv, DVSSURF(pipe),
1847 			  intel_plane_ggtt_offset(plane_state) + dvssurf_offset);
1848 
1849 	if (IS_G4X(dev_priv))
1850 		g4x_update_gamma(plane_state);
1851 	else
1852 		ilk_update_gamma(plane_state);
1853 
1854 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
1855 }
1856 
1857 static void
1858 g4x_disable_plane(struct intel_plane *plane,
1859 		  const struct intel_crtc_state *crtc_state)
1860 {
1861 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1862 	enum pipe pipe = plane->pipe;
1863 	unsigned long irqflags;
1864 
1865 	spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
1866 
1867 	intel_de_write_fw(dev_priv, DVSCNTR(pipe), 0);
1868 	/* Disable the scaler */
1869 	intel_de_write_fw(dev_priv, DVSSCALE(pipe), 0);
1870 	intel_de_write_fw(dev_priv, DVSSURF(pipe), 0);
1871 
1872 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
1873 }
1874 
1875 static bool
1876 g4x_plane_get_hw_state(struct intel_plane *plane,
1877 		       enum pipe *pipe)
1878 {
1879 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1880 	enum intel_display_power_domain power_domain;
1881 	intel_wakeref_t wakeref;
1882 	bool ret;
1883 
1884 	power_domain = POWER_DOMAIN_PIPE(plane->pipe);
1885 	wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain);
1886 	if (!wakeref)
1887 		return false;
1888 
1889 	ret = intel_de_read(dev_priv, DVSCNTR(plane->pipe)) & DVS_ENABLE;
1890 
1891 	*pipe = plane->pipe;
1892 
1893 	intel_display_power_put(dev_priv, power_domain, wakeref);
1894 
1895 	return ret;
1896 }
1897 
1898 static bool intel_fb_scalable(const struct drm_framebuffer *fb)
1899 {
1900 	if (!fb)
1901 		return false;
1902 
1903 	switch (fb->format->format) {
1904 	case DRM_FORMAT_C8:
1905 		return false;
1906 	case DRM_FORMAT_XRGB16161616F:
1907 	case DRM_FORMAT_ARGB16161616F:
1908 	case DRM_FORMAT_XBGR16161616F:
1909 	case DRM_FORMAT_ABGR16161616F:
1910 		return INTEL_GEN(to_i915(fb->dev)) >= 11;
1911 	default:
1912 		return true;
1913 	}
1914 }
1915 
1916 static int
1917 g4x_sprite_check_scaling(struct intel_crtc_state *crtc_state,
1918 			 struct intel_plane_state *plane_state)
1919 {
1920 	const struct drm_framebuffer *fb = plane_state->hw.fb;
1921 	const struct drm_rect *src = &plane_state->uapi.src;
1922 	const struct drm_rect *dst = &plane_state->uapi.dst;
1923 	int src_x, src_w, src_h, crtc_w, crtc_h;
1924 	const struct drm_display_mode *adjusted_mode =
1925 		&crtc_state->hw.adjusted_mode;
1926 	unsigned int stride = plane_state->color_plane[0].stride;
1927 	unsigned int cpp = fb->format->cpp[0];
1928 	unsigned int width_bytes;
1929 	int min_width, min_height;
1930 
1931 	crtc_w = drm_rect_width(dst);
1932 	crtc_h = drm_rect_height(dst);
1933 
1934 	src_x = src->x1 >> 16;
1935 	src_w = drm_rect_width(src) >> 16;
1936 	src_h = drm_rect_height(src) >> 16;
1937 
1938 	if (src_w == crtc_w && src_h == crtc_h)
1939 		return 0;
1940 
1941 	min_width = 3;
1942 
1943 	if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
1944 		if (src_h & 1) {
1945 			DRM_DEBUG_KMS("Source height must be even with interlaced modes\n");
1946 			return -EINVAL;
1947 		}
1948 		min_height = 6;
1949 	} else {
1950 		min_height = 3;
1951 	}
1952 
1953 	width_bytes = ((src_x * cpp) & 63) + src_w * cpp;
1954 
1955 	if (src_w < min_width || src_h < min_height ||
1956 	    src_w > 2048 || src_h > 2048) {
1957 		DRM_DEBUG_KMS("Source dimensions (%dx%d) exceed hardware limits (%dx%d - %dx%d)\n",
1958 			      src_w, src_h, min_width, min_height, 2048, 2048);
1959 		return -EINVAL;
1960 	}
1961 
1962 	if (width_bytes > 4096) {
1963 		DRM_DEBUG_KMS("Fetch width (%d) exceeds hardware max with scaling (%u)\n",
1964 			      width_bytes, 4096);
1965 		return -EINVAL;
1966 	}
1967 
1968 	if (stride > 4096) {
1969 		DRM_DEBUG_KMS("Stride (%u) exceeds hardware max with scaling (%u)\n",
1970 			      stride, 4096);
1971 		return -EINVAL;
1972 	}
1973 
1974 	return 0;
1975 }
1976 
1977 static int
1978 g4x_sprite_check(struct intel_crtc_state *crtc_state,
1979 		 struct intel_plane_state *plane_state)
1980 {
1981 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
1982 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
1983 	int min_scale = DRM_PLANE_HELPER_NO_SCALING;
1984 	int max_scale = DRM_PLANE_HELPER_NO_SCALING;
1985 	int ret;
1986 
1987 	if (intel_fb_scalable(plane_state->hw.fb)) {
1988 		if (INTEL_GEN(dev_priv) < 7) {
1989 			min_scale = 1;
1990 			max_scale = 16 << 16;
1991 		} else if (IS_IVYBRIDGE(dev_priv)) {
1992 			min_scale = 1;
1993 			max_scale = 2 << 16;
1994 		}
1995 	}
1996 
1997 	ret = drm_atomic_helper_check_plane_state(&plane_state->uapi,
1998 						  &crtc_state->uapi,
1999 						  min_scale, max_scale,
2000 						  true, true);
2001 	if (ret)
2002 		return ret;
2003 
2004 	ret = i9xx_check_plane_surface(plane_state);
2005 	if (ret)
2006 		return ret;
2007 
2008 	if (!plane_state->uapi.visible)
2009 		return 0;
2010 
2011 	ret = intel_plane_check_src_coordinates(plane_state);
2012 	if (ret)
2013 		return ret;
2014 
2015 	ret = g4x_sprite_check_scaling(crtc_state, plane_state);
2016 	if (ret)
2017 		return ret;
2018 
2019 	if (INTEL_GEN(dev_priv) >= 7)
2020 		plane_state->ctl = ivb_sprite_ctl(crtc_state, plane_state);
2021 	else
2022 		plane_state->ctl = g4x_sprite_ctl(crtc_state, plane_state);
2023 
2024 	return 0;
2025 }
2026 
2027 int chv_plane_check_rotation(const struct intel_plane_state *plane_state)
2028 {
2029 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
2030 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
2031 	unsigned int rotation = plane_state->hw.rotation;
2032 
2033 	/* CHV ignores the mirror bit when the rotate bit is set :( */
2034 	if (IS_CHERRYVIEW(dev_priv) &&
2035 	    rotation & DRM_MODE_ROTATE_180 &&
2036 	    rotation & DRM_MODE_REFLECT_X) {
2037 		drm_dbg_kms(&dev_priv->drm,
2038 			    "Cannot rotate and reflect at the same time\n");
2039 		return -EINVAL;
2040 	}
2041 
2042 	return 0;
2043 }
2044 
2045 static int
2046 vlv_sprite_check(struct intel_crtc_state *crtc_state,
2047 		 struct intel_plane_state *plane_state)
2048 {
2049 	int ret;
2050 
2051 	ret = chv_plane_check_rotation(plane_state);
2052 	if (ret)
2053 		return ret;
2054 
2055 	ret = drm_atomic_helper_check_plane_state(&plane_state->uapi,
2056 						  &crtc_state->uapi,
2057 						  DRM_PLANE_HELPER_NO_SCALING,
2058 						  DRM_PLANE_HELPER_NO_SCALING,
2059 						  true, true);
2060 	if (ret)
2061 		return ret;
2062 
2063 	ret = i9xx_check_plane_surface(plane_state);
2064 	if (ret)
2065 		return ret;
2066 
2067 	if (!plane_state->uapi.visible)
2068 		return 0;
2069 
2070 	ret = intel_plane_check_src_coordinates(plane_state);
2071 	if (ret)
2072 		return ret;
2073 
2074 	plane_state->ctl = vlv_sprite_ctl(crtc_state, plane_state);
2075 
2076 	return 0;
2077 }
2078 
2079 static bool intel_format_is_p01x(u32 format)
2080 {
2081 	switch (format) {
2082 	case DRM_FORMAT_P010:
2083 	case DRM_FORMAT_P012:
2084 	case DRM_FORMAT_P016:
2085 		return true;
2086 	default:
2087 		return false;
2088 	}
2089 }
2090 
2091 static int skl_plane_check_fb(const struct intel_crtc_state *crtc_state,
2092 			      const struct intel_plane_state *plane_state)
2093 {
2094 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
2095 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
2096 	const struct drm_framebuffer *fb = plane_state->hw.fb;
2097 	unsigned int rotation = plane_state->hw.rotation;
2098 	struct drm_format_name_buf format_name;
2099 
2100 	if (!fb)
2101 		return 0;
2102 
2103 	if (rotation & ~(DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180) &&
2104 	    is_ccs_modifier(fb->modifier)) {
2105 		drm_dbg_kms(&dev_priv->drm,
2106 			    "RC support only with 0/180 degree rotation (%x)\n",
2107 			    rotation);
2108 		return -EINVAL;
2109 	}
2110 
2111 	if (rotation & DRM_MODE_REFLECT_X &&
2112 	    fb->modifier == DRM_FORMAT_MOD_LINEAR) {
2113 		drm_dbg_kms(&dev_priv->drm,
2114 			    "horizontal flip is not supported with linear surface formats\n");
2115 		return -EINVAL;
2116 	}
2117 
2118 	if (drm_rotation_90_or_270(rotation)) {
2119 		if (fb->modifier != I915_FORMAT_MOD_Y_TILED &&
2120 		    fb->modifier != I915_FORMAT_MOD_Yf_TILED) {
2121 			drm_dbg_kms(&dev_priv->drm,
2122 				    "Y/Yf tiling required for 90/270!\n");
2123 			return -EINVAL;
2124 		}
2125 
2126 		/*
2127 		 * 90/270 is not allowed with RGB64 16:16:16:16 and
2128 		 * Indexed 8-bit. RGB 16-bit 5:6:5 is allowed gen11 onwards.
2129 		 */
2130 		switch (fb->format->format) {
2131 		case DRM_FORMAT_RGB565:
2132 			if (INTEL_GEN(dev_priv) >= 11)
2133 				break;
2134 			/* fall through */
2135 		case DRM_FORMAT_C8:
2136 		case DRM_FORMAT_XRGB16161616F:
2137 		case DRM_FORMAT_XBGR16161616F:
2138 		case DRM_FORMAT_ARGB16161616F:
2139 		case DRM_FORMAT_ABGR16161616F:
2140 		case DRM_FORMAT_Y210:
2141 		case DRM_FORMAT_Y212:
2142 		case DRM_FORMAT_Y216:
2143 		case DRM_FORMAT_XVYU12_16161616:
2144 		case DRM_FORMAT_XVYU16161616:
2145 			drm_dbg_kms(&dev_priv->drm,
2146 				    "Unsupported pixel format %s for 90/270!\n",
2147 				    drm_get_format_name(fb->format->format,
2148 							&format_name));
2149 			return -EINVAL;
2150 		default:
2151 			break;
2152 		}
2153 	}
2154 
2155 	/* Y-tiling is not supported in IF-ID Interlace mode */
2156 	if (crtc_state->hw.enable &&
2157 	    crtc_state->hw.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE &&
2158 	    (fb->modifier == I915_FORMAT_MOD_Y_TILED ||
2159 	     fb->modifier == I915_FORMAT_MOD_Yf_TILED ||
2160 	     fb->modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
2161 	     fb->modifier == I915_FORMAT_MOD_Yf_TILED_CCS ||
2162 	     fb->modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
2163 	     fb->modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS)) {
2164 		drm_dbg_kms(&dev_priv->drm,
2165 			    "Y/Yf tiling not supported in IF-ID mode\n");
2166 		return -EINVAL;
2167 	}
2168 
2169 	/* Wa_1606054188:tgl */
2170 	if (IS_TIGERLAKE(dev_priv) &&
2171 	    plane_state->ckey.flags & I915_SET_COLORKEY_SOURCE &&
2172 	    intel_format_is_p01x(fb->format->format)) {
2173 		drm_dbg_kms(&dev_priv->drm,
2174 			    "Source color keying not supported with P01x formats\n");
2175 		return -EINVAL;
2176 	}
2177 
2178 	return 0;
2179 }
2180 
2181 static int skl_plane_check_dst_coordinates(const struct intel_crtc_state *crtc_state,
2182 					   const struct intel_plane_state *plane_state)
2183 {
2184 	struct drm_i915_private *dev_priv =
2185 		to_i915(plane_state->uapi.plane->dev);
2186 	int crtc_x = plane_state->uapi.dst.x1;
2187 	int crtc_w = drm_rect_width(&plane_state->uapi.dst);
2188 	int pipe_src_w = crtc_state->pipe_src_w;
2189 
2190 	/*
2191 	 * Display WA #1175: cnl,glk
2192 	 * Planes other than the cursor may cause FIFO underflow and display
2193 	 * corruption if starting less than 4 pixels from the right edge of
2194 	 * the screen.
2195 	 * Besides the above WA fix the similar problem, where planes other
2196 	 * than the cursor ending less than 4 pixels from the left edge of the
2197 	 * screen may cause FIFO underflow and display corruption.
2198 	 */
2199 	if ((IS_GEMINILAKE(dev_priv) || IS_CANNONLAKE(dev_priv)) &&
2200 	    (crtc_x + crtc_w < 4 || crtc_x > pipe_src_w - 4)) {
2201 		drm_dbg_kms(&dev_priv->drm,
2202 			    "requested plane X %s position %d invalid (valid range %d-%d)\n",
2203 			    crtc_x + crtc_w < 4 ? "end" : "start",
2204 			    crtc_x + crtc_w < 4 ? crtc_x + crtc_w : crtc_x,
2205 			    4, pipe_src_w - 4);
2206 		return -ERANGE;
2207 	}
2208 
2209 	return 0;
2210 }
2211 
2212 static int skl_plane_check_nv12_rotation(const struct intel_plane_state *plane_state)
2213 {
2214 	const struct drm_framebuffer *fb = plane_state->hw.fb;
2215 	unsigned int rotation = plane_state->hw.rotation;
2216 	int src_w = drm_rect_width(&plane_state->uapi.src) >> 16;
2217 
2218 	/* Display WA #1106 */
2219 	if (intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier) &&
2220 	    src_w & 3 &&
2221 	    (rotation == DRM_MODE_ROTATE_270 ||
2222 	     rotation == (DRM_MODE_REFLECT_X | DRM_MODE_ROTATE_90))) {
2223 		DRM_DEBUG_KMS("src width must be multiple of 4 for rotated planar YUV\n");
2224 		return -EINVAL;
2225 	}
2226 
2227 	return 0;
2228 }
2229 
2230 static int skl_plane_max_scale(struct drm_i915_private *dev_priv,
2231 			       const struct drm_framebuffer *fb)
2232 {
2233 	/*
2234 	 * We don't yet know the final source width nor
2235 	 * whether we can use the HQ scaler mode. Assume
2236 	 * the best case.
2237 	 * FIXME need to properly check this later.
2238 	 */
2239 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv) ||
2240 	    !intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier))
2241 		return 0x30000 - 1;
2242 	else
2243 		return 0x20000 - 1;
2244 }
2245 
2246 static int skl_plane_check(struct intel_crtc_state *crtc_state,
2247 			   struct intel_plane_state *plane_state)
2248 {
2249 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
2250 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
2251 	const struct drm_framebuffer *fb = plane_state->hw.fb;
2252 	int min_scale = DRM_PLANE_HELPER_NO_SCALING;
2253 	int max_scale = DRM_PLANE_HELPER_NO_SCALING;
2254 	int ret;
2255 
2256 	ret = skl_plane_check_fb(crtc_state, plane_state);
2257 	if (ret)
2258 		return ret;
2259 
2260 	/* use scaler when colorkey is not required */
2261 	if (!plane_state->ckey.flags && intel_fb_scalable(fb)) {
2262 		min_scale = 1;
2263 		max_scale = skl_plane_max_scale(dev_priv, fb);
2264 	}
2265 
2266 	ret = drm_atomic_helper_check_plane_state(&plane_state->uapi,
2267 						  &crtc_state->uapi,
2268 						  min_scale, max_scale,
2269 						  true, true);
2270 	if (ret)
2271 		return ret;
2272 
2273 	ret = skl_check_plane_surface(plane_state);
2274 	if (ret)
2275 		return ret;
2276 
2277 	if (!plane_state->uapi.visible)
2278 		return 0;
2279 
2280 	ret = skl_plane_check_dst_coordinates(crtc_state, plane_state);
2281 	if (ret)
2282 		return ret;
2283 
2284 	ret = intel_plane_check_src_coordinates(plane_state);
2285 	if (ret)
2286 		return ret;
2287 
2288 	ret = skl_plane_check_nv12_rotation(plane_state);
2289 	if (ret)
2290 		return ret;
2291 
2292 	/* HW only has 8 bits pixel precision, disable plane if invisible */
2293 	if (!(plane_state->hw.alpha >> 8))
2294 		plane_state->uapi.visible = false;
2295 
2296 	plane_state->ctl = skl_plane_ctl(crtc_state, plane_state);
2297 
2298 	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
2299 		plane_state->color_ctl = glk_plane_color_ctl(crtc_state,
2300 							     plane_state);
2301 
2302 	if (intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier) &&
2303 	    icl_is_hdr_plane(dev_priv, plane->id))
2304 		/* Enable and use MPEG-2 chroma siting */
2305 		plane_state->cus_ctl = PLANE_CUS_ENABLE |
2306 			PLANE_CUS_HPHASE_0 |
2307 			PLANE_CUS_VPHASE_SIGN_NEGATIVE | PLANE_CUS_VPHASE_0_25;
2308 	else
2309 		plane_state->cus_ctl = 0;
2310 
2311 	return 0;
2312 }
2313 
2314 static bool has_dst_key_in_primary_plane(struct drm_i915_private *dev_priv)
2315 {
2316 	return INTEL_GEN(dev_priv) >= 9;
2317 }
2318 
2319 static void intel_plane_set_ckey(struct intel_plane_state *plane_state,
2320 				 const struct drm_intel_sprite_colorkey *set)
2321 {
2322 	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
2323 	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
2324 	struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
2325 
2326 	*key = *set;
2327 
2328 	/*
2329 	 * We want src key enabled on the
2330 	 * sprite and not on the primary.
2331 	 */
2332 	if (plane->id == PLANE_PRIMARY &&
2333 	    set->flags & I915_SET_COLORKEY_SOURCE)
2334 		key->flags = 0;
2335 
2336 	/*
2337 	 * On SKL+ we want dst key enabled on
2338 	 * the primary and not on the sprite.
2339 	 */
2340 	if (INTEL_GEN(dev_priv) >= 9 && plane->id != PLANE_PRIMARY &&
2341 	    set->flags & I915_SET_COLORKEY_DESTINATION)
2342 		key->flags = 0;
2343 }
2344 
2345 int intel_sprite_set_colorkey_ioctl(struct drm_device *dev, void *data,
2346 				    struct drm_file *file_priv)
2347 {
2348 	struct drm_i915_private *dev_priv = to_i915(dev);
2349 	struct drm_intel_sprite_colorkey *set = data;
2350 	struct drm_plane *plane;
2351 	struct drm_plane_state *plane_state;
2352 	struct drm_atomic_state *state;
2353 	struct drm_modeset_acquire_ctx ctx;
2354 	int ret = 0;
2355 
2356 	/* ignore the pointless "none" flag */
2357 	set->flags &= ~I915_SET_COLORKEY_NONE;
2358 
2359 	if (set->flags & ~(I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
2360 		return -EINVAL;
2361 
2362 	/* Make sure we don't try to enable both src & dest simultaneously */
2363 	if ((set->flags & (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE)) == (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
2364 		return -EINVAL;
2365 
2366 	if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) &&
2367 	    set->flags & I915_SET_COLORKEY_DESTINATION)
2368 		return -EINVAL;
2369 
2370 	plane = drm_plane_find(dev, file_priv, set->plane_id);
2371 	if (!plane || plane->type != DRM_PLANE_TYPE_OVERLAY)
2372 		return -ENOENT;
2373 
2374 	/*
2375 	 * SKL+ only plane 2 can do destination keying against plane 1.
2376 	 * Also multiple planes can't do destination keying on the same
2377 	 * pipe simultaneously.
2378 	 */
2379 	if (INTEL_GEN(dev_priv) >= 9 &&
2380 	    to_intel_plane(plane)->id >= PLANE_SPRITE1 &&
2381 	    set->flags & I915_SET_COLORKEY_DESTINATION)
2382 		return -EINVAL;
2383 
2384 	drm_modeset_acquire_init(&ctx, 0);
2385 
2386 	state = drm_atomic_state_alloc(plane->dev);
2387 	if (!state) {
2388 		ret = -ENOMEM;
2389 		goto out;
2390 	}
2391 	state->acquire_ctx = &ctx;
2392 
2393 	while (1) {
2394 		plane_state = drm_atomic_get_plane_state(state, plane);
2395 		ret = PTR_ERR_OR_ZERO(plane_state);
2396 		if (!ret)
2397 			intel_plane_set_ckey(to_intel_plane_state(plane_state), set);
2398 
2399 		/*
2400 		 * On some platforms we have to configure
2401 		 * the dst colorkey on the primary plane.
2402 		 */
2403 		if (!ret && has_dst_key_in_primary_plane(dev_priv)) {
2404 			struct intel_crtc *crtc =
2405 				intel_get_crtc_for_pipe(dev_priv,
2406 							to_intel_plane(plane)->pipe);
2407 
2408 			plane_state = drm_atomic_get_plane_state(state,
2409 								 crtc->base.primary);
2410 			ret = PTR_ERR_OR_ZERO(plane_state);
2411 			if (!ret)
2412 				intel_plane_set_ckey(to_intel_plane_state(plane_state), set);
2413 		}
2414 
2415 		if (!ret)
2416 			ret = drm_atomic_commit(state);
2417 
2418 		if (ret != -EDEADLK)
2419 			break;
2420 
2421 		drm_atomic_state_clear(state);
2422 		drm_modeset_backoff(&ctx);
2423 	}
2424 
2425 	drm_atomic_state_put(state);
2426 out:
2427 	drm_modeset_drop_locks(&ctx);
2428 	drm_modeset_acquire_fini(&ctx);
2429 	return ret;
2430 }
2431 
2432 static const u32 g4x_plane_formats[] = {
2433 	DRM_FORMAT_XRGB8888,
2434 	DRM_FORMAT_YUYV,
2435 	DRM_FORMAT_YVYU,
2436 	DRM_FORMAT_UYVY,
2437 	DRM_FORMAT_VYUY,
2438 };
2439 
2440 static const u64 i9xx_plane_format_modifiers[] = {
2441 	I915_FORMAT_MOD_X_TILED,
2442 	DRM_FORMAT_MOD_LINEAR,
2443 	DRM_FORMAT_MOD_INVALID
2444 };
2445 
2446 static const u32 snb_plane_formats[] = {
2447 	DRM_FORMAT_XRGB8888,
2448 	DRM_FORMAT_XBGR8888,
2449 	DRM_FORMAT_XRGB2101010,
2450 	DRM_FORMAT_XBGR2101010,
2451 	DRM_FORMAT_XRGB16161616F,
2452 	DRM_FORMAT_XBGR16161616F,
2453 	DRM_FORMAT_YUYV,
2454 	DRM_FORMAT_YVYU,
2455 	DRM_FORMAT_UYVY,
2456 	DRM_FORMAT_VYUY,
2457 };
2458 
2459 static const u32 vlv_plane_formats[] = {
2460 	DRM_FORMAT_C8,
2461 	DRM_FORMAT_RGB565,
2462 	DRM_FORMAT_XRGB8888,
2463 	DRM_FORMAT_XBGR8888,
2464 	DRM_FORMAT_ARGB8888,
2465 	DRM_FORMAT_ABGR8888,
2466 	DRM_FORMAT_XBGR2101010,
2467 	DRM_FORMAT_ABGR2101010,
2468 	DRM_FORMAT_YUYV,
2469 	DRM_FORMAT_YVYU,
2470 	DRM_FORMAT_UYVY,
2471 	DRM_FORMAT_VYUY,
2472 };
2473 
2474 static const u32 chv_pipe_b_sprite_formats[] = {
2475 	DRM_FORMAT_C8,
2476 	DRM_FORMAT_RGB565,
2477 	DRM_FORMAT_XRGB8888,
2478 	DRM_FORMAT_XBGR8888,
2479 	DRM_FORMAT_ARGB8888,
2480 	DRM_FORMAT_ABGR8888,
2481 	DRM_FORMAT_XRGB2101010,
2482 	DRM_FORMAT_XBGR2101010,
2483 	DRM_FORMAT_ARGB2101010,
2484 	DRM_FORMAT_ABGR2101010,
2485 	DRM_FORMAT_YUYV,
2486 	DRM_FORMAT_YVYU,
2487 	DRM_FORMAT_UYVY,
2488 	DRM_FORMAT_VYUY,
2489 };
2490 
2491 static const u32 skl_plane_formats[] = {
2492 	DRM_FORMAT_C8,
2493 	DRM_FORMAT_RGB565,
2494 	DRM_FORMAT_XRGB8888,
2495 	DRM_FORMAT_XBGR8888,
2496 	DRM_FORMAT_ARGB8888,
2497 	DRM_FORMAT_ABGR8888,
2498 	DRM_FORMAT_XRGB2101010,
2499 	DRM_FORMAT_XBGR2101010,
2500 	DRM_FORMAT_XRGB16161616F,
2501 	DRM_FORMAT_XBGR16161616F,
2502 	DRM_FORMAT_YUYV,
2503 	DRM_FORMAT_YVYU,
2504 	DRM_FORMAT_UYVY,
2505 	DRM_FORMAT_VYUY,
2506 	DRM_FORMAT_XYUV8888,
2507 };
2508 
2509 static const u32 skl_planar_formats[] = {
2510 	DRM_FORMAT_C8,
2511 	DRM_FORMAT_RGB565,
2512 	DRM_FORMAT_XRGB8888,
2513 	DRM_FORMAT_XBGR8888,
2514 	DRM_FORMAT_ARGB8888,
2515 	DRM_FORMAT_ABGR8888,
2516 	DRM_FORMAT_XRGB2101010,
2517 	DRM_FORMAT_XBGR2101010,
2518 	DRM_FORMAT_XRGB16161616F,
2519 	DRM_FORMAT_XBGR16161616F,
2520 	DRM_FORMAT_YUYV,
2521 	DRM_FORMAT_YVYU,
2522 	DRM_FORMAT_UYVY,
2523 	DRM_FORMAT_VYUY,
2524 	DRM_FORMAT_NV12,
2525 	DRM_FORMAT_XYUV8888,
2526 };
2527 
2528 static const u32 glk_planar_formats[] = {
2529 	DRM_FORMAT_C8,
2530 	DRM_FORMAT_RGB565,
2531 	DRM_FORMAT_XRGB8888,
2532 	DRM_FORMAT_XBGR8888,
2533 	DRM_FORMAT_ARGB8888,
2534 	DRM_FORMAT_ABGR8888,
2535 	DRM_FORMAT_XRGB2101010,
2536 	DRM_FORMAT_XBGR2101010,
2537 	DRM_FORMAT_XRGB16161616F,
2538 	DRM_FORMAT_XBGR16161616F,
2539 	DRM_FORMAT_YUYV,
2540 	DRM_FORMAT_YVYU,
2541 	DRM_FORMAT_UYVY,
2542 	DRM_FORMAT_VYUY,
2543 	DRM_FORMAT_NV12,
2544 	DRM_FORMAT_XYUV8888,
2545 	DRM_FORMAT_P010,
2546 	DRM_FORMAT_P012,
2547 	DRM_FORMAT_P016,
2548 };
2549 
2550 static const u32 icl_sdr_y_plane_formats[] = {
2551 	DRM_FORMAT_C8,
2552 	DRM_FORMAT_RGB565,
2553 	DRM_FORMAT_XRGB8888,
2554 	DRM_FORMAT_XBGR8888,
2555 	DRM_FORMAT_ARGB8888,
2556 	DRM_FORMAT_ABGR8888,
2557 	DRM_FORMAT_XRGB2101010,
2558 	DRM_FORMAT_XBGR2101010,
2559 	DRM_FORMAT_ARGB2101010,
2560 	DRM_FORMAT_ABGR2101010,
2561 	DRM_FORMAT_YUYV,
2562 	DRM_FORMAT_YVYU,
2563 	DRM_FORMAT_UYVY,
2564 	DRM_FORMAT_VYUY,
2565 	DRM_FORMAT_Y210,
2566 	DRM_FORMAT_Y212,
2567 	DRM_FORMAT_Y216,
2568 	DRM_FORMAT_XYUV8888,
2569 	DRM_FORMAT_XVYU2101010,
2570 	DRM_FORMAT_XVYU12_16161616,
2571 	DRM_FORMAT_XVYU16161616,
2572 };
2573 
2574 static const u32 icl_sdr_uv_plane_formats[] = {
2575 	DRM_FORMAT_C8,
2576 	DRM_FORMAT_RGB565,
2577 	DRM_FORMAT_XRGB8888,
2578 	DRM_FORMAT_XBGR8888,
2579 	DRM_FORMAT_ARGB8888,
2580 	DRM_FORMAT_ABGR8888,
2581 	DRM_FORMAT_XRGB2101010,
2582 	DRM_FORMAT_XBGR2101010,
2583 	DRM_FORMAT_ARGB2101010,
2584 	DRM_FORMAT_ABGR2101010,
2585 	DRM_FORMAT_YUYV,
2586 	DRM_FORMAT_YVYU,
2587 	DRM_FORMAT_UYVY,
2588 	DRM_FORMAT_VYUY,
2589 	DRM_FORMAT_NV12,
2590 	DRM_FORMAT_P010,
2591 	DRM_FORMAT_P012,
2592 	DRM_FORMAT_P016,
2593 	DRM_FORMAT_Y210,
2594 	DRM_FORMAT_Y212,
2595 	DRM_FORMAT_Y216,
2596 	DRM_FORMAT_XYUV8888,
2597 	DRM_FORMAT_XVYU2101010,
2598 	DRM_FORMAT_XVYU12_16161616,
2599 	DRM_FORMAT_XVYU16161616,
2600 };
2601 
2602 static const u32 icl_hdr_plane_formats[] = {
2603 	DRM_FORMAT_C8,
2604 	DRM_FORMAT_RGB565,
2605 	DRM_FORMAT_XRGB8888,
2606 	DRM_FORMAT_XBGR8888,
2607 	DRM_FORMAT_ARGB8888,
2608 	DRM_FORMAT_ABGR8888,
2609 	DRM_FORMAT_XRGB2101010,
2610 	DRM_FORMAT_XBGR2101010,
2611 	DRM_FORMAT_ARGB2101010,
2612 	DRM_FORMAT_ABGR2101010,
2613 	DRM_FORMAT_XRGB16161616F,
2614 	DRM_FORMAT_XBGR16161616F,
2615 	DRM_FORMAT_ARGB16161616F,
2616 	DRM_FORMAT_ABGR16161616F,
2617 	DRM_FORMAT_YUYV,
2618 	DRM_FORMAT_YVYU,
2619 	DRM_FORMAT_UYVY,
2620 	DRM_FORMAT_VYUY,
2621 	DRM_FORMAT_NV12,
2622 	DRM_FORMAT_P010,
2623 	DRM_FORMAT_P012,
2624 	DRM_FORMAT_P016,
2625 	DRM_FORMAT_Y210,
2626 	DRM_FORMAT_Y212,
2627 	DRM_FORMAT_Y216,
2628 	DRM_FORMAT_XYUV8888,
2629 	DRM_FORMAT_XVYU2101010,
2630 	DRM_FORMAT_XVYU12_16161616,
2631 	DRM_FORMAT_XVYU16161616,
2632 };
2633 
2634 static const u64 skl_plane_format_modifiers_noccs[] = {
2635 	I915_FORMAT_MOD_Yf_TILED,
2636 	I915_FORMAT_MOD_Y_TILED,
2637 	I915_FORMAT_MOD_X_TILED,
2638 	DRM_FORMAT_MOD_LINEAR,
2639 	DRM_FORMAT_MOD_INVALID
2640 };
2641 
2642 static const u64 skl_plane_format_modifiers_ccs[] = {
2643 	I915_FORMAT_MOD_Yf_TILED_CCS,
2644 	I915_FORMAT_MOD_Y_TILED_CCS,
2645 	I915_FORMAT_MOD_Yf_TILED,
2646 	I915_FORMAT_MOD_Y_TILED,
2647 	I915_FORMAT_MOD_X_TILED,
2648 	DRM_FORMAT_MOD_LINEAR,
2649 	DRM_FORMAT_MOD_INVALID
2650 };
2651 
2652 static const u64 gen12_plane_format_modifiers_mc_ccs[] = {
2653 	I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS,
2654 	I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS,
2655 	I915_FORMAT_MOD_Y_TILED,
2656 	I915_FORMAT_MOD_X_TILED,
2657 	DRM_FORMAT_MOD_LINEAR,
2658 	DRM_FORMAT_MOD_INVALID
2659 };
2660 
2661 static const u64 gen12_plane_format_modifiers_rc_ccs[] = {
2662 	I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS,
2663 	I915_FORMAT_MOD_Y_TILED,
2664 	I915_FORMAT_MOD_X_TILED,
2665 	DRM_FORMAT_MOD_LINEAR,
2666 	DRM_FORMAT_MOD_INVALID
2667 };
2668 
2669 static bool g4x_sprite_format_mod_supported(struct drm_plane *_plane,
2670 					    u32 format, u64 modifier)
2671 {
2672 	switch (modifier) {
2673 	case DRM_FORMAT_MOD_LINEAR:
2674 	case I915_FORMAT_MOD_X_TILED:
2675 		break;
2676 	default:
2677 		return false;
2678 	}
2679 
2680 	switch (format) {
2681 	case DRM_FORMAT_XRGB8888:
2682 	case DRM_FORMAT_YUYV:
2683 	case DRM_FORMAT_YVYU:
2684 	case DRM_FORMAT_UYVY:
2685 	case DRM_FORMAT_VYUY:
2686 		if (modifier == DRM_FORMAT_MOD_LINEAR ||
2687 		    modifier == I915_FORMAT_MOD_X_TILED)
2688 			return true;
2689 		/* fall through */
2690 	default:
2691 		return false;
2692 	}
2693 }
2694 
2695 static bool snb_sprite_format_mod_supported(struct drm_plane *_plane,
2696 					    u32 format, u64 modifier)
2697 {
2698 	switch (modifier) {
2699 	case DRM_FORMAT_MOD_LINEAR:
2700 	case I915_FORMAT_MOD_X_TILED:
2701 		break;
2702 	default:
2703 		return false;
2704 	}
2705 
2706 	switch (format) {
2707 	case DRM_FORMAT_XRGB8888:
2708 	case DRM_FORMAT_XBGR8888:
2709 	case DRM_FORMAT_XRGB2101010:
2710 	case DRM_FORMAT_XBGR2101010:
2711 	case DRM_FORMAT_XRGB16161616F:
2712 	case DRM_FORMAT_XBGR16161616F:
2713 	case DRM_FORMAT_YUYV:
2714 	case DRM_FORMAT_YVYU:
2715 	case DRM_FORMAT_UYVY:
2716 	case DRM_FORMAT_VYUY:
2717 		if (modifier == DRM_FORMAT_MOD_LINEAR ||
2718 		    modifier == I915_FORMAT_MOD_X_TILED)
2719 			return true;
2720 		/* fall through */
2721 	default:
2722 		return false;
2723 	}
2724 }
2725 
2726 static bool vlv_sprite_format_mod_supported(struct drm_plane *_plane,
2727 					    u32 format, u64 modifier)
2728 {
2729 	switch (modifier) {
2730 	case DRM_FORMAT_MOD_LINEAR:
2731 	case I915_FORMAT_MOD_X_TILED:
2732 		break;
2733 	default:
2734 		return false;
2735 	}
2736 
2737 	switch (format) {
2738 	case DRM_FORMAT_C8:
2739 	case DRM_FORMAT_RGB565:
2740 	case DRM_FORMAT_ABGR8888:
2741 	case DRM_FORMAT_ARGB8888:
2742 	case DRM_FORMAT_XBGR8888:
2743 	case DRM_FORMAT_XRGB8888:
2744 	case DRM_FORMAT_XBGR2101010:
2745 	case DRM_FORMAT_ABGR2101010:
2746 	case DRM_FORMAT_XRGB2101010:
2747 	case DRM_FORMAT_ARGB2101010:
2748 	case DRM_FORMAT_YUYV:
2749 	case DRM_FORMAT_YVYU:
2750 	case DRM_FORMAT_UYVY:
2751 	case DRM_FORMAT_VYUY:
2752 		if (modifier == DRM_FORMAT_MOD_LINEAR ||
2753 		    modifier == I915_FORMAT_MOD_X_TILED)
2754 			return true;
2755 		/* fall through */
2756 	default:
2757 		return false;
2758 	}
2759 }
2760 
2761 static bool skl_plane_format_mod_supported(struct drm_plane *_plane,
2762 					   u32 format, u64 modifier)
2763 {
2764 	struct intel_plane *plane = to_intel_plane(_plane);
2765 
2766 	switch (modifier) {
2767 	case DRM_FORMAT_MOD_LINEAR:
2768 	case I915_FORMAT_MOD_X_TILED:
2769 	case I915_FORMAT_MOD_Y_TILED:
2770 	case I915_FORMAT_MOD_Yf_TILED:
2771 		break;
2772 	case I915_FORMAT_MOD_Y_TILED_CCS:
2773 	case I915_FORMAT_MOD_Yf_TILED_CCS:
2774 		if (!plane->has_ccs)
2775 			return false;
2776 		break;
2777 	default:
2778 		return false;
2779 	}
2780 
2781 	switch (format) {
2782 	case DRM_FORMAT_XRGB8888:
2783 	case DRM_FORMAT_XBGR8888:
2784 	case DRM_FORMAT_ARGB8888:
2785 	case DRM_FORMAT_ABGR8888:
2786 		if (is_ccs_modifier(modifier))
2787 			return true;
2788 		/* fall through */
2789 	case DRM_FORMAT_RGB565:
2790 	case DRM_FORMAT_XRGB2101010:
2791 	case DRM_FORMAT_XBGR2101010:
2792 	case DRM_FORMAT_ARGB2101010:
2793 	case DRM_FORMAT_ABGR2101010:
2794 	case DRM_FORMAT_YUYV:
2795 	case DRM_FORMAT_YVYU:
2796 	case DRM_FORMAT_UYVY:
2797 	case DRM_FORMAT_VYUY:
2798 	case DRM_FORMAT_NV12:
2799 	case DRM_FORMAT_XYUV8888:
2800 	case DRM_FORMAT_P010:
2801 	case DRM_FORMAT_P012:
2802 	case DRM_FORMAT_P016:
2803 	case DRM_FORMAT_XVYU2101010:
2804 		if (modifier == I915_FORMAT_MOD_Yf_TILED)
2805 			return true;
2806 		/* fall through */
2807 	case DRM_FORMAT_C8:
2808 	case DRM_FORMAT_XBGR16161616F:
2809 	case DRM_FORMAT_ABGR16161616F:
2810 	case DRM_FORMAT_XRGB16161616F:
2811 	case DRM_FORMAT_ARGB16161616F:
2812 	case DRM_FORMAT_Y210:
2813 	case DRM_FORMAT_Y212:
2814 	case DRM_FORMAT_Y216:
2815 	case DRM_FORMAT_XVYU12_16161616:
2816 	case DRM_FORMAT_XVYU16161616:
2817 		if (modifier == DRM_FORMAT_MOD_LINEAR ||
2818 		    modifier == I915_FORMAT_MOD_X_TILED ||
2819 		    modifier == I915_FORMAT_MOD_Y_TILED)
2820 			return true;
2821 		/* fall through */
2822 	default:
2823 		return false;
2824 	}
2825 }
2826 
2827 static bool gen12_plane_supports_mc_ccs(struct drm_i915_private *dev_priv,
2828 					enum plane_id plane_id)
2829 {
2830 	/* Wa_14010477008:tgl[a0..c0] */
2831 	if (IS_TGL_REVID(dev_priv, TGL_REVID_A0, TGL_REVID_C0))
2832 		return false;
2833 
2834 	return plane_id < PLANE_SPRITE4;
2835 }
2836 
2837 static bool gen12_plane_format_mod_supported(struct drm_plane *_plane,
2838 					     u32 format, u64 modifier)
2839 {
2840 	struct drm_i915_private *dev_priv = to_i915(_plane->dev);
2841 	struct intel_plane *plane = to_intel_plane(_plane);
2842 
2843 	switch (modifier) {
2844 	case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
2845 		if (!gen12_plane_supports_mc_ccs(dev_priv, plane->id))
2846 			return false;
2847 		/* fall through */
2848 	case DRM_FORMAT_MOD_LINEAR:
2849 	case I915_FORMAT_MOD_X_TILED:
2850 	case I915_FORMAT_MOD_Y_TILED:
2851 	case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
2852 		break;
2853 	default:
2854 		return false;
2855 	}
2856 
2857 	switch (format) {
2858 	case DRM_FORMAT_XRGB8888:
2859 	case DRM_FORMAT_XBGR8888:
2860 	case DRM_FORMAT_ARGB8888:
2861 	case DRM_FORMAT_ABGR8888:
2862 		if (is_ccs_modifier(modifier))
2863 			return true;
2864 		/* fall through */
2865 	case DRM_FORMAT_YUYV:
2866 	case DRM_FORMAT_YVYU:
2867 	case DRM_FORMAT_UYVY:
2868 	case DRM_FORMAT_VYUY:
2869 	case DRM_FORMAT_NV12:
2870 	case DRM_FORMAT_XYUV8888:
2871 	case DRM_FORMAT_P010:
2872 	case DRM_FORMAT_P012:
2873 	case DRM_FORMAT_P016:
2874 		if (modifier == I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS)
2875 			return true;
2876 		/* fall through */
2877 	case DRM_FORMAT_RGB565:
2878 	case DRM_FORMAT_XRGB2101010:
2879 	case DRM_FORMAT_XBGR2101010:
2880 	case DRM_FORMAT_ARGB2101010:
2881 	case DRM_FORMAT_ABGR2101010:
2882 	case DRM_FORMAT_XVYU2101010:
2883 	case DRM_FORMAT_C8:
2884 	case DRM_FORMAT_XBGR16161616F:
2885 	case DRM_FORMAT_ABGR16161616F:
2886 	case DRM_FORMAT_XRGB16161616F:
2887 	case DRM_FORMAT_ARGB16161616F:
2888 	case DRM_FORMAT_Y210:
2889 	case DRM_FORMAT_Y212:
2890 	case DRM_FORMAT_Y216:
2891 	case DRM_FORMAT_XVYU12_16161616:
2892 	case DRM_FORMAT_XVYU16161616:
2893 		if (modifier == DRM_FORMAT_MOD_LINEAR ||
2894 		    modifier == I915_FORMAT_MOD_X_TILED ||
2895 		    modifier == I915_FORMAT_MOD_Y_TILED)
2896 			return true;
2897 		/* fall through */
2898 	default:
2899 		return false;
2900 	}
2901 }
2902 
2903 static const struct drm_plane_funcs g4x_sprite_funcs = {
2904 	.update_plane = drm_atomic_helper_update_plane,
2905 	.disable_plane = drm_atomic_helper_disable_plane,
2906 	.destroy = intel_plane_destroy,
2907 	.atomic_duplicate_state = intel_plane_duplicate_state,
2908 	.atomic_destroy_state = intel_plane_destroy_state,
2909 	.format_mod_supported = g4x_sprite_format_mod_supported,
2910 };
2911 
2912 static const struct drm_plane_funcs snb_sprite_funcs = {
2913 	.update_plane = drm_atomic_helper_update_plane,
2914 	.disable_plane = drm_atomic_helper_disable_plane,
2915 	.destroy = intel_plane_destroy,
2916 	.atomic_duplicate_state = intel_plane_duplicate_state,
2917 	.atomic_destroy_state = intel_plane_destroy_state,
2918 	.format_mod_supported = snb_sprite_format_mod_supported,
2919 };
2920 
2921 static const struct drm_plane_funcs vlv_sprite_funcs = {
2922 	.update_plane = drm_atomic_helper_update_plane,
2923 	.disable_plane = drm_atomic_helper_disable_plane,
2924 	.destroy = intel_plane_destroy,
2925 	.atomic_duplicate_state = intel_plane_duplicate_state,
2926 	.atomic_destroy_state = intel_plane_destroy_state,
2927 	.format_mod_supported = vlv_sprite_format_mod_supported,
2928 };
2929 
2930 static const struct drm_plane_funcs skl_plane_funcs = {
2931 	.update_plane = drm_atomic_helper_update_plane,
2932 	.disable_plane = drm_atomic_helper_disable_plane,
2933 	.destroy = intel_plane_destroy,
2934 	.atomic_duplicate_state = intel_plane_duplicate_state,
2935 	.atomic_destroy_state = intel_plane_destroy_state,
2936 	.format_mod_supported = skl_plane_format_mod_supported,
2937 };
2938 
2939 static const struct drm_plane_funcs gen12_plane_funcs = {
2940 	.update_plane = drm_atomic_helper_update_plane,
2941 	.disable_plane = drm_atomic_helper_disable_plane,
2942 	.destroy = intel_plane_destroy,
2943 	.atomic_duplicate_state = intel_plane_duplicate_state,
2944 	.atomic_destroy_state = intel_plane_destroy_state,
2945 	.format_mod_supported = gen12_plane_format_mod_supported,
2946 };
2947 
2948 static bool skl_plane_has_fbc(struct drm_i915_private *dev_priv,
2949 			      enum pipe pipe, enum plane_id plane_id)
2950 {
2951 	if (!HAS_FBC(dev_priv))
2952 		return false;
2953 
2954 	return pipe == PIPE_A && plane_id == PLANE_PRIMARY;
2955 }
2956 
2957 static bool skl_plane_has_planar(struct drm_i915_private *dev_priv,
2958 				 enum pipe pipe, enum plane_id plane_id)
2959 {
2960 	/* Display WA #0870: skl, bxt */
2961 	if (IS_SKYLAKE(dev_priv) || IS_BROXTON(dev_priv))
2962 		return false;
2963 
2964 	if (IS_GEN(dev_priv, 9) && !IS_GEMINILAKE(dev_priv) && pipe == PIPE_C)
2965 		return false;
2966 
2967 	if (plane_id != PLANE_PRIMARY && plane_id != PLANE_SPRITE0)
2968 		return false;
2969 
2970 	return true;
2971 }
2972 
2973 static const u32 *skl_get_plane_formats(struct drm_i915_private *dev_priv,
2974 					enum pipe pipe, enum plane_id plane_id,
2975 					int *num_formats)
2976 {
2977 	if (skl_plane_has_planar(dev_priv, pipe, plane_id)) {
2978 		*num_formats = ARRAY_SIZE(skl_planar_formats);
2979 		return skl_planar_formats;
2980 	} else {
2981 		*num_formats = ARRAY_SIZE(skl_plane_formats);
2982 		return skl_plane_formats;
2983 	}
2984 }
2985 
2986 static const u32 *glk_get_plane_formats(struct drm_i915_private *dev_priv,
2987 					enum pipe pipe, enum plane_id plane_id,
2988 					int *num_formats)
2989 {
2990 	if (skl_plane_has_planar(dev_priv, pipe, plane_id)) {
2991 		*num_formats = ARRAY_SIZE(glk_planar_formats);
2992 		return glk_planar_formats;
2993 	} else {
2994 		*num_formats = ARRAY_SIZE(skl_plane_formats);
2995 		return skl_plane_formats;
2996 	}
2997 }
2998 
2999 static const u32 *icl_get_plane_formats(struct drm_i915_private *dev_priv,
3000 					enum pipe pipe, enum plane_id plane_id,
3001 					int *num_formats)
3002 {
3003 	if (icl_is_hdr_plane(dev_priv, plane_id)) {
3004 		*num_formats = ARRAY_SIZE(icl_hdr_plane_formats);
3005 		return icl_hdr_plane_formats;
3006 	} else if (icl_is_nv12_y_plane(plane_id)) {
3007 		*num_formats = ARRAY_SIZE(icl_sdr_y_plane_formats);
3008 		return icl_sdr_y_plane_formats;
3009 	} else {
3010 		*num_formats = ARRAY_SIZE(icl_sdr_uv_plane_formats);
3011 		return icl_sdr_uv_plane_formats;
3012 	}
3013 }
3014 
3015 static const u64 *gen12_get_plane_modifiers(struct drm_i915_private *dev_priv,
3016 					    enum plane_id plane_id)
3017 {
3018 	if (gen12_plane_supports_mc_ccs(dev_priv, plane_id))
3019 		return gen12_plane_format_modifiers_mc_ccs;
3020 	else
3021 		return gen12_plane_format_modifiers_rc_ccs;
3022 }
3023 
3024 static bool skl_plane_has_ccs(struct drm_i915_private *dev_priv,
3025 			      enum pipe pipe, enum plane_id plane_id)
3026 {
3027 	if (plane_id == PLANE_CURSOR)
3028 		return false;
3029 
3030 	if (INTEL_GEN(dev_priv) >= 10)
3031 		return true;
3032 
3033 	if (IS_GEMINILAKE(dev_priv))
3034 		return pipe != PIPE_C;
3035 
3036 	return pipe != PIPE_C &&
3037 		(plane_id == PLANE_PRIMARY ||
3038 		 plane_id == PLANE_SPRITE0);
3039 }
3040 
3041 struct intel_plane *
3042 skl_universal_plane_create(struct drm_i915_private *dev_priv,
3043 			   enum pipe pipe, enum plane_id plane_id)
3044 {
3045 	const struct drm_plane_funcs *plane_funcs;
3046 	struct intel_plane *plane;
3047 	enum drm_plane_type plane_type;
3048 	unsigned int supported_rotations;
3049 	const u64 *modifiers;
3050 	const u32 *formats;
3051 	int num_formats;
3052 	int ret;
3053 
3054 	plane = intel_plane_alloc();
3055 	if (IS_ERR(plane))
3056 		return plane;
3057 
3058 	plane->pipe = pipe;
3059 	plane->id = plane_id;
3060 	plane->frontbuffer_bit = INTEL_FRONTBUFFER(pipe, plane_id);
3061 
3062 	plane->has_fbc = skl_plane_has_fbc(dev_priv, pipe, plane_id);
3063 	if (plane->has_fbc) {
3064 		struct intel_fbc *fbc = &dev_priv->fbc;
3065 
3066 		fbc->possible_framebuffer_bits |= plane->frontbuffer_bit;
3067 	}
3068 
3069 	plane->max_stride = skl_plane_max_stride;
3070 	plane->update_plane = skl_update_plane;
3071 	plane->disable_plane = skl_disable_plane;
3072 	plane->get_hw_state = skl_plane_get_hw_state;
3073 	plane->check_plane = skl_plane_check;
3074 	plane->min_cdclk = skl_plane_min_cdclk;
3075 
3076 	if (INTEL_GEN(dev_priv) >= 11)
3077 		formats = icl_get_plane_formats(dev_priv, pipe,
3078 						plane_id, &num_formats);
3079 	else if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
3080 		formats = glk_get_plane_formats(dev_priv, pipe,
3081 						plane_id, &num_formats);
3082 	else
3083 		formats = skl_get_plane_formats(dev_priv, pipe,
3084 						plane_id, &num_formats);
3085 
3086 	plane->has_ccs = skl_plane_has_ccs(dev_priv, pipe, plane_id);
3087 	if (INTEL_GEN(dev_priv) >= 12) {
3088 		modifiers = gen12_get_plane_modifiers(dev_priv, plane_id);
3089 		plane_funcs = &gen12_plane_funcs;
3090 	} else {
3091 		if (plane->has_ccs)
3092 			modifiers = skl_plane_format_modifiers_ccs;
3093 		else
3094 			modifiers = skl_plane_format_modifiers_noccs;
3095 		plane_funcs = &skl_plane_funcs;
3096 	}
3097 
3098 	if (plane_id == PLANE_PRIMARY)
3099 		plane_type = DRM_PLANE_TYPE_PRIMARY;
3100 	else
3101 		plane_type = DRM_PLANE_TYPE_OVERLAY;
3102 
3103 	ret = drm_universal_plane_init(&dev_priv->drm, &plane->base,
3104 				       0, plane_funcs,
3105 				       formats, num_formats, modifiers,
3106 				       plane_type,
3107 				       "plane %d%c", plane_id + 1,
3108 				       pipe_name(pipe));
3109 	if (ret)
3110 		goto fail;
3111 
3112 	supported_rotations =
3113 		DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
3114 		DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270;
3115 
3116 	if (INTEL_GEN(dev_priv) >= 10)
3117 		supported_rotations |= DRM_MODE_REFLECT_X;
3118 
3119 	drm_plane_create_rotation_property(&plane->base,
3120 					   DRM_MODE_ROTATE_0,
3121 					   supported_rotations);
3122 
3123 	drm_plane_create_color_properties(&plane->base,
3124 					  BIT(DRM_COLOR_YCBCR_BT601) |
3125 					  BIT(DRM_COLOR_YCBCR_BT709),
3126 					  BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
3127 					  BIT(DRM_COLOR_YCBCR_FULL_RANGE),
3128 					  DRM_COLOR_YCBCR_BT709,
3129 					  DRM_COLOR_YCBCR_LIMITED_RANGE);
3130 
3131 	drm_plane_create_alpha_property(&plane->base);
3132 	drm_plane_create_blend_mode_property(&plane->base,
3133 					     BIT(DRM_MODE_BLEND_PIXEL_NONE) |
3134 					     BIT(DRM_MODE_BLEND_PREMULTI) |
3135 					     BIT(DRM_MODE_BLEND_COVERAGE));
3136 
3137 	drm_plane_create_zpos_immutable_property(&plane->base, plane_id);
3138 
3139 	drm_plane_helper_add(&plane->base, &intel_plane_helper_funcs);
3140 
3141 	return plane;
3142 
3143 fail:
3144 	intel_plane_free(plane);
3145 
3146 	return ERR_PTR(ret);
3147 }
3148 
3149 struct intel_plane *
3150 intel_sprite_plane_create(struct drm_i915_private *dev_priv,
3151 			  enum pipe pipe, int sprite)
3152 {
3153 	struct intel_plane *plane;
3154 	const struct drm_plane_funcs *plane_funcs;
3155 	unsigned int supported_rotations;
3156 	const u64 *modifiers;
3157 	const u32 *formats;
3158 	int num_formats;
3159 	int ret, zpos;
3160 
3161 	if (INTEL_GEN(dev_priv) >= 9)
3162 		return skl_universal_plane_create(dev_priv, pipe,
3163 						  PLANE_SPRITE0 + sprite);
3164 
3165 	plane = intel_plane_alloc();
3166 	if (IS_ERR(plane))
3167 		return plane;
3168 
3169 	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
3170 		plane->max_stride = i9xx_plane_max_stride;
3171 		plane->update_plane = vlv_update_plane;
3172 		plane->disable_plane = vlv_disable_plane;
3173 		plane->get_hw_state = vlv_plane_get_hw_state;
3174 		plane->check_plane = vlv_sprite_check;
3175 		plane->min_cdclk = vlv_plane_min_cdclk;
3176 
3177 		if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) {
3178 			formats = chv_pipe_b_sprite_formats;
3179 			num_formats = ARRAY_SIZE(chv_pipe_b_sprite_formats);
3180 		} else {
3181 			formats = vlv_plane_formats;
3182 			num_formats = ARRAY_SIZE(vlv_plane_formats);
3183 		}
3184 		modifiers = i9xx_plane_format_modifiers;
3185 
3186 		plane_funcs = &vlv_sprite_funcs;
3187 	} else if (INTEL_GEN(dev_priv) >= 7) {
3188 		plane->max_stride = g4x_sprite_max_stride;
3189 		plane->update_plane = ivb_update_plane;
3190 		plane->disable_plane = ivb_disable_plane;
3191 		plane->get_hw_state = ivb_plane_get_hw_state;
3192 		plane->check_plane = g4x_sprite_check;
3193 
3194 		if (IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv))
3195 			plane->min_cdclk = hsw_plane_min_cdclk;
3196 		else
3197 			plane->min_cdclk = ivb_sprite_min_cdclk;
3198 
3199 		formats = snb_plane_formats;
3200 		num_formats = ARRAY_SIZE(snb_plane_formats);
3201 		modifiers = i9xx_plane_format_modifiers;
3202 
3203 		plane_funcs = &snb_sprite_funcs;
3204 	} else {
3205 		plane->max_stride = g4x_sprite_max_stride;
3206 		plane->update_plane = g4x_update_plane;
3207 		plane->disable_plane = g4x_disable_plane;
3208 		plane->get_hw_state = g4x_plane_get_hw_state;
3209 		plane->check_plane = g4x_sprite_check;
3210 		plane->min_cdclk = g4x_sprite_min_cdclk;
3211 
3212 		modifiers = i9xx_plane_format_modifiers;
3213 		if (IS_GEN(dev_priv, 6)) {
3214 			formats = snb_plane_formats;
3215 			num_formats = ARRAY_SIZE(snb_plane_formats);
3216 
3217 			plane_funcs = &snb_sprite_funcs;
3218 		} else {
3219 			formats = g4x_plane_formats;
3220 			num_formats = ARRAY_SIZE(g4x_plane_formats);
3221 
3222 			plane_funcs = &g4x_sprite_funcs;
3223 		}
3224 	}
3225 
3226 	if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) {
3227 		supported_rotations =
3228 			DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 |
3229 			DRM_MODE_REFLECT_X;
3230 	} else {
3231 		supported_rotations =
3232 			DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180;
3233 	}
3234 
3235 	plane->pipe = pipe;
3236 	plane->id = PLANE_SPRITE0 + sprite;
3237 	plane->frontbuffer_bit = INTEL_FRONTBUFFER(pipe, plane->id);
3238 
3239 	ret = drm_universal_plane_init(&dev_priv->drm, &plane->base,
3240 				       0, plane_funcs,
3241 				       formats, num_formats, modifiers,
3242 				       DRM_PLANE_TYPE_OVERLAY,
3243 				       "sprite %c", sprite_name(pipe, sprite));
3244 	if (ret)
3245 		goto fail;
3246 
3247 	drm_plane_create_rotation_property(&plane->base,
3248 					   DRM_MODE_ROTATE_0,
3249 					   supported_rotations);
3250 
3251 	drm_plane_create_color_properties(&plane->base,
3252 					  BIT(DRM_COLOR_YCBCR_BT601) |
3253 					  BIT(DRM_COLOR_YCBCR_BT709),
3254 					  BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
3255 					  BIT(DRM_COLOR_YCBCR_FULL_RANGE),
3256 					  DRM_COLOR_YCBCR_BT709,
3257 					  DRM_COLOR_YCBCR_LIMITED_RANGE);
3258 
3259 	zpos = sprite + 1;
3260 	drm_plane_create_zpos_immutable_property(&plane->base, zpos);
3261 
3262 	drm_plane_helper_add(&plane->base, &intel_plane_helper_funcs);
3263 
3264 	return plane;
3265 
3266 fail:
3267 	intel_plane_free(plane);
3268 
3269 	return ERR_PTR(ret);
3270 }
3271