1 /*
2  * Copyright © 2013 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
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21  * IN THE SOFTWARE.
22  */
23 
24 #include <drm/drm_managed.h>
25 #include <linux/pm_runtime.h>
26 
27 #include "gt/intel_engine_regs.h"
28 #include "gt/intel_gt_regs.h"
29 
30 #include "i915_drv.h"
31 #include "i915_iosf_mbi.h"
32 #include "i915_reg.h"
33 #include "i915_trace.h"
34 #include "i915_vgpu.h"
35 #include "intel_pm.h"
36 
37 #define FORCEWAKE_ACK_TIMEOUT_MS 50
38 #define GT_FIFO_TIMEOUT_MS	 10
39 
40 #define __raw_posting_read(...) ((void)__raw_uncore_read32(__VA_ARGS__))
41 
42 static void
43 fw_domains_get(struct intel_uncore *uncore, enum forcewake_domains fw_domains)
44 {
45 	uncore->fw_get_funcs->force_wake_get(uncore, fw_domains);
46 }
47 
48 void
49 intel_uncore_mmio_debug_init_early(struct drm_i915_private *i915)
50 {
51 	spin_lock_init(&i915->mmio_debug.lock);
52 	i915->mmio_debug.unclaimed_mmio_check = 1;
53 
54 	i915->uncore.debug = &i915->mmio_debug;
55 }
56 
57 static void mmio_debug_suspend(struct intel_uncore *uncore)
58 {
59 	if (!uncore->debug)
60 		return;
61 
62 	spin_lock(&uncore->debug->lock);
63 
64 	/* Save and disable mmio debugging for the user bypass */
65 	if (!uncore->debug->suspend_count++) {
66 		uncore->debug->saved_mmio_check = uncore->debug->unclaimed_mmio_check;
67 		uncore->debug->unclaimed_mmio_check = 0;
68 	}
69 
70 	spin_unlock(&uncore->debug->lock);
71 }
72 
73 static bool check_for_unclaimed_mmio(struct intel_uncore *uncore);
74 
75 static void mmio_debug_resume(struct intel_uncore *uncore)
76 {
77 	if (!uncore->debug)
78 		return;
79 
80 	spin_lock(&uncore->debug->lock);
81 
82 	if (!--uncore->debug->suspend_count)
83 		uncore->debug->unclaimed_mmio_check = uncore->debug->saved_mmio_check;
84 
85 	if (check_for_unclaimed_mmio(uncore))
86 		drm_info(&uncore->i915->drm,
87 			 "Invalid mmio detected during user access\n");
88 
89 	spin_unlock(&uncore->debug->lock);
90 }
91 
92 static const char * const forcewake_domain_names[] = {
93 	"render",
94 	"gt",
95 	"media",
96 	"vdbox0",
97 	"vdbox1",
98 	"vdbox2",
99 	"vdbox3",
100 	"vdbox4",
101 	"vdbox5",
102 	"vdbox6",
103 	"vdbox7",
104 	"vebox0",
105 	"vebox1",
106 	"vebox2",
107 	"vebox3",
108 	"gsc",
109 };
110 
111 const char *
112 intel_uncore_forcewake_domain_to_str(const enum forcewake_domain_id id)
113 {
114 	BUILD_BUG_ON(ARRAY_SIZE(forcewake_domain_names) != FW_DOMAIN_ID_COUNT);
115 
116 	if (id >= 0 && id < FW_DOMAIN_ID_COUNT)
117 		return forcewake_domain_names[id];
118 
119 	WARN_ON(id);
120 
121 	return "unknown";
122 }
123 
124 #define fw_ack(d) readl((d)->reg_ack)
125 #define fw_set(d, val) writel(_MASKED_BIT_ENABLE((val)), (d)->reg_set)
126 #define fw_clear(d, val) writel(_MASKED_BIT_DISABLE((val)), (d)->reg_set)
127 
128 static inline void
129 fw_domain_reset(const struct intel_uncore_forcewake_domain *d)
130 {
131 	/*
132 	 * We don't really know if the powerwell for the forcewake domain we are
133 	 * trying to reset here does exist at this point (engines could be fused
134 	 * off in ICL+), so no waiting for acks
135 	 */
136 	/* WaRsClearFWBitsAtReset */
137 	if (GRAPHICS_VER(d->uncore->i915) >= 12)
138 		fw_clear(d, 0xefff);
139 	else
140 		fw_clear(d, 0xffff);
141 }
142 
143 static inline void
144 fw_domain_arm_timer(struct intel_uncore_forcewake_domain *d)
145 {
146 	GEM_BUG_ON(d->uncore->fw_domains_timer & d->mask);
147 	d->uncore->fw_domains_timer |= d->mask;
148 	d->wake_count++;
149 	hrtimer_start_range_ns(&d->timer,
150 			       NSEC_PER_MSEC,
151 			       NSEC_PER_MSEC,
152 			       HRTIMER_MODE_REL);
153 }
154 
155 static inline int
156 __wait_for_ack(const struct intel_uncore_forcewake_domain *d,
157 	       const u32 ack,
158 	       const u32 value)
159 {
160 	return wait_for_atomic((fw_ack(d) & ack) == value,
161 			       FORCEWAKE_ACK_TIMEOUT_MS);
162 }
163 
164 static inline int
165 wait_ack_clear(const struct intel_uncore_forcewake_domain *d,
166 	       const u32 ack)
167 {
168 	return __wait_for_ack(d, ack, 0);
169 }
170 
171 static inline int
172 wait_ack_set(const struct intel_uncore_forcewake_domain *d,
173 	     const u32 ack)
174 {
175 	return __wait_for_ack(d, ack, ack);
176 }
177 
178 static inline void
179 fw_domain_wait_ack_clear(const struct intel_uncore_forcewake_domain *d)
180 {
181 	if (wait_ack_clear(d, FORCEWAKE_KERNEL)) {
182 		drm_err(&d->uncore->i915->drm,
183 			"%s: timed out waiting for forcewake ack to clear.\n",
184 			intel_uncore_forcewake_domain_to_str(d->id));
185 		add_taint_for_CI(d->uncore->i915, TAINT_WARN); /* CI now unreliable */
186 	}
187 }
188 
189 enum ack_type {
190 	ACK_CLEAR = 0,
191 	ACK_SET
192 };
193 
194 static int
195 fw_domain_wait_ack_with_fallback(const struct intel_uncore_forcewake_domain *d,
196 				 const enum ack_type type)
197 {
198 	const u32 ack_bit = FORCEWAKE_KERNEL;
199 	const u32 value = type == ACK_SET ? ack_bit : 0;
200 	unsigned int pass;
201 	bool ack_detected;
202 
203 	/*
204 	 * There is a possibility of driver's wake request colliding
205 	 * with hardware's own wake requests and that can cause
206 	 * hardware to not deliver the driver's ack message.
207 	 *
208 	 * Use a fallback bit toggle to kick the gpu state machine
209 	 * in the hope that the original ack will be delivered along with
210 	 * the fallback ack.
211 	 *
212 	 * This workaround is described in HSDES #1604254524 and it's known as:
213 	 * WaRsForcewakeAddDelayForAck:skl,bxt,kbl,glk,cfl,cnl,icl
214 	 * although the name is a bit misleading.
215 	 */
216 
217 	pass = 1;
218 	do {
219 		wait_ack_clear(d, FORCEWAKE_KERNEL_FALLBACK);
220 
221 		fw_set(d, FORCEWAKE_KERNEL_FALLBACK);
222 		/* Give gt some time to relax before the polling frenzy */
223 		udelay(10 * pass);
224 		wait_ack_set(d, FORCEWAKE_KERNEL_FALLBACK);
225 
226 		ack_detected = (fw_ack(d) & ack_bit) == value;
227 
228 		fw_clear(d, FORCEWAKE_KERNEL_FALLBACK);
229 	} while (!ack_detected && pass++ < 10);
230 
231 	drm_dbg(&d->uncore->i915->drm,
232 		"%s had to use fallback to %s ack, 0x%x (passes %u)\n",
233 		intel_uncore_forcewake_domain_to_str(d->id),
234 		type == ACK_SET ? "set" : "clear",
235 		fw_ack(d),
236 		pass);
237 
238 	return ack_detected ? 0 : -ETIMEDOUT;
239 }
240 
241 static inline void
242 fw_domain_wait_ack_clear_fallback(const struct intel_uncore_forcewake_domain *d)
243 {
244 	if (likely(!wait_ack_clear(d, FORCEWAKE_KERNEL)))
245 		return;
246 
247 	if (fw_domain_wait_ack_with_fallback(d, ACK_CLEAR))
248 		fw_domain_wait_ack_clear(d);
249 }
250 
251 static inline void
252 fw_domain_get(const struct intel_uncore_forcewake_domain *d)
253 {
254 	fw_set(d, FORCEWAKE_KERNEL);
255 }
256 
257 static inline void
258 fw_domain_wait_ack_set(const struct intel_uncore_forcewake_domain *d)
259 {
260 	if (wait_ack_set(d, FORCEWAKE_KERNEL)) {
261 		drm_err(&d->uncore->i915->drm,
262 			"%s: timed out waiting for forcewake ack request.\n",
263 			intel_uncore_forcewake_domain_to_str(d->id));
264 		add_taint_for_CI(d->uncore->i915, TAINT_WARN); /* CI now unreliable */
265 	}
266 }
267 
268 static inline void
269 fw_domain_wait_ack_set_fallback(const struct intel_uncore_forcewake_domain *d)
270 {
271 	if (likely(!wait_ack_set(d, FORCEWAKE_KERNEL)))
272 		return;
273 
274 	if (fw_domain_wait_ack_with_fallback(d, ACK_SET))
275 		fw_domain_wait_ack_set(d);
276 }
277 
278 static inline void
279 fw_domain_put(const struct intel_uncore_forcewake_domain *d)
280 {
281 	fw_clear(d, FORCEWAKE_KERNEL);
282 }
283 
284 static void
285 fw_domains_get_normal(struct intel_uncore *uncore, enum forcewake_domains fw_domains)
286 {
287 	struct intel_uncore_forcewake_domain *d;
288 	unsigned int tmp;
289 
290 	GEM_BUG_ON(fw_domains & ~uncore->fw_domains);
291 
292 	for_each_fw_domain_masked(d, fw_domains, uncore, tmp) {
293 		fw_domain_wait_ack_clear(d);
294 		fw_domain_get(d);
295 	}
296 
297 	for_each_fw_domain_masked(d, fw_domains, uncore, tmp)
298 		fw_domain_wait_ack_set(d);
299 
300 	uncore->fw_domains_active |= fw_domains;
301 }
302 
303 static void
304 fw_domains_get_with_fallback(struct intel_uncore *uncore,
305 			     enum forcewake_domains fw_domains)
306 {
307 	struct intel_uncore_forcewake_domain *d;
308 	unsigned int tmp;
309 
310 	GEM_BUG_ON(fw_domains & ~uncore->fw_domains);
311 
312 	for_each_fw_domain_masked(d, fw_domains, uncore, tmp) {
313 		fw_domain_wait_ack_clear_fallback(d);
314 		fw_domain_get(d);
315 	}
316 
317 	for_each_fw_domain_masked(d, fw_domains, uncore, tmp)
318 		fw_domain_wait_ack_set_fallback(d);
319 
320 	uncore->fw_domains_active |= fw_domains;
321 }
322 
323 static void
324 fw_domains_put(struct intel_uncore *uncore, enum forcewake_domains fw_domains)
325 {
326 	struct intel_uncore_forcewake_domain *d;
327 	unsigned int tmp;
328 
329 	GEM_BUG_ON(fw_domains & ~uncore->fw_domains);
330 
331 	for_each_fw_domain_masked(d, fw_domains, uncore, tmp)
332 		fw_domain_put(d);
333 
334 	uncore->fw_domains_active &= ~fw_domains;
335 }
336 
337 static void
338 fw_domains_reset(struct intel_uncore *uncore,
339 		 enum forcewake_domains fw_domains)
340 {
341 	struct intel_uncore_forcewake_domain *d;
342 	unsigned int tmp;
343 
344 	if (!fw_domains)
345 		return;
346 
347 	GEM_BUG_ON(fw_domains & ~uncore->fw_domains);
348 
349 	for_each_fw_domain_masked(d, fw_domains, uncore, tmp)
350 		fw_domain_reset(d);
351 }
352 
353 static inline u32 gt_thread_status(struct intel_uncore *uncore)
354 {
355 	u32 val;
356 
357 	val = __raw_uncore_read32(uncore, GEN6_GT_THREAD_STATUS_REG);
358 	val &= GEN6_GT_THREAD_STATUS_CORE_MASK;
359 
360 	return val;
361 }
362 
363 static void __gen6_gt_wait_for_thread_c0(struct intel_uncore *uncore)
364 {
365 	/*
366 	 * w/a for a sporadic read returning 0 by waiting for the GT
367 	 * thread to wake up.
368 	 */
369 	drm_WARN_ONCE(&uncore->i915->drm,
370 		      wait_for_atomic_us(gt_thread_status(uncore) == 0, 5000),
371 		      "GT thread status wait timed out\n");
372 }
373 
374 static void fw_domains_get_with_thread_status(struct intel_uncore *uncore,
375 					      enum forcewake_domains fw_domains)
376 {
377 	fw_domains_get_normal(uncore, fw_domains);
378 
379 	/* WaRsForcewakeWaitTC0:snb,ivb,hsw,bdw,vlv */
380 	__gen6_gt_wait_for_thread_c0(uncore);
381 }
382 
383 static inline u32 fifo_free_entries(struct intel_uncore *uncore)
384 {
385 	u32 count = __raw_uncore_read32(uncore, GTFIFOCTL);
386 
387 	return count & GT_FIFO_FREE_ENTRIES_MASK;
388 }
389 
390 static void __gen6_gt_wait_for_fifo(struct intel_uncore *uncore)
391 {
392 	u32 n;
393 
394 	/* On VLV, FIFO will be shared by both SW and HW.
395 	 * So, we need to read the FREE_ENTRIES everytime */
396 	if (IS_VALLEYVIEW(uncore->i915))
397 		n = fifo_free_entries(uncore);
398 	else
399 		n = uncore->fifo_count;
400 
401 	if (n <= GT_FIFO_NUM_RESERVED_ENTRIES) {
402 		if (wait_for_atomic((n = fifo_free_entries(uncore)) >
403 				    GT_FIFO_NUM_RESERVED_ENTRIES,
404 				    GT_FIFO_TIMEOUT_MS)) {
405 			drm_dbg(&uncore->i915->drm,
406 				"GT_FIFO timeout, entries: %u\n", n);
407 			return;
408 		}
409 	}
410 
411 	uncore->fifo_count = n - 1;
412 }
413 
414 static enum hrtimer_restart
415 intel_uncore_fw_release_timer(struct hrtimer *timer)
416 {
417 	struct intel_uncore_forcewake_domain *domain =
418 	       container_of(timer, struct intel_uncore_forcewake_domain, timer);
419 	struct intel_uncore *uncore = domain->uncore;
420 	unsigned long irqflags;
421 
422 	assert_rpm_device_not_suspended(uncore->rpm);
423 
424 	if (xchg(&domain->active, false))
425 		return HRTIMER_RESTART;
426 
427 	spin_lock_irqsave(&uncore->lock, irqflags);
428 
429 	uncore->fw_domains_timer &= ~domain->mask;
430 
431 	GEM_BUG_ON(!domain->wake_count);
432 	if (--domain->wake_count == 0)
433 		fw_domains_put(uncore, domain->mask);
434 
435 	spin_unlock_irqrestore(&uncore->lock, irqflags);
436 
437 	return HRTIMER_NORESTART;
438 }
439 
440 /* Note callers must have acquired the PUNIT->PMIC bus, before calling this. */
441 static unsigned int
442 intel_uncore_forcewake_reset(struct intel_uncore *uncore)
443 {
444 	unsigned long irqflags;
445 	struct intel_uncore_forcewake_domain *domain;
446 	int retry_count = 100;
447 	enum forcewake_domains fw, active_domains;
448 
449 	iosf_mbi_assert_punit_acquired();
450 
451 	/* Hold uncore.lock across reset to prevent any register access
452 	 * with forcewake not set correctly. Wait until all pending
453 	 * timers are run before holding.
454 	 */
455 	while (1) {
456 		unsigned int tmp;
457 
458 		active_domains = 0;
459 
460 		for_each_fw_domain(domain, uncore, tmp) {
461 			smp_store_mb(domain->active, false);
462 			if (hrtimer_cancel(&domain->timer) == 0)
463 				continue;
464 
465 			intel_uncore_fw_release_timer(&domain->timer);
466 		}
467 
468 		spin_lock_irqsave(&uncore->lock, irqflags);
469 
470 		for_each_fw_domain(domain, uncore, tmp) {
471 			if (hrtimer_active(&domain->timer))
472 				active_domains |= domain->mask;
473 		}
474 
475 		if (active_domains == 0)
476 			break;
477 
478 		if (--retry_count == 0) {
479 			drm_err(&uncore->i915->drm, "Timed out waiting for forcewake timers to finish\n");
480 			break;
481 		}
482 
483 		spin_unlock_irqrestore(&uncore->lock, irqflags);
484 		cond_resched();
485 	}
486 
487 	drm_WARN_ON(&uncore->i915->drm, active_domains);
488 
489 	fw = uncore->fw_domains_active;
490 	if (fw)
491 		fw_domains_put(uncore, fw);
492 
493 	fw_domains_reset(uncore, uncore->fw_domains);
494 	assert_forcewakes_inactive(uncore);
495 
496 	spin_unlock_irqrestore(&uncore->lock, irqflags);
497 
498 	return fw; /* track the lost user forcewake domains */
499 }
500 
501 static bool
502 fpga_check_for_unclaimed_mmio(struct intel_uncore *uncore)
503 {
504 	u32 dbg;
505 
506 	dbg = __raw_uncore_read32(uncore, FPGA_DBG);
507 	if (likely(!(dbg & FPGA_DBG_RM_NOCLAIM)))
508 		return false;
509 
510 	/*
511 	 * Bugs in PCI programming (or failing hardware) can occasionally cause
512 	 * us to lose access to the MMIO BAR.  When this happens, register
513 	 * reads will come back with 0xFFFFFFFF for every register and things
514 	 * go bad very quickly.  Let's try to detect that special case and at
515 	 * least try to print a more informative message about what has
516 	 * happened.
517 	 *
518 	 * During normal operation the FPGA_DBG register has several unused
519 	 * bits that will always read back as 0's so we can use them as canaries
520 	 * to recognize when MMIO accesses are just busted.
521 	 */
522 	if (unlikely(dbg == ~0))
523 		drm_err(&uncore->i915->drm,
524 			"Lost access to MMIO BAR; all registers now read back as 0xFFFFFFFF!\n");
525 
526 	__raw_uncore_write32(uncore, FPGA_DBG, FPGA_DBG_RM_NOCLAIM);
527 
528 	return true;
529 }
530 
531 static bool
532 vlv_check_for_unclaimed_mmio(struct intel_uncore *uncore)
533 {
534 	u32 cer;
535 
536 	cer = __raw_uncore_read32(uncore, CLAIM_ER);
537 	if (likely(!(cer & (CLAIM_ER_OVERFLOW | CLAIM_ER_CTR_MASK))))
538 		return false;
539 
540 	__raw_uncore_write32(uncore, CLAIM_ER, CLAIM_ER_CLR);
541 
542 	return true;
543 }
544 
545 static bool
546 gen6_check_for_fifo_debug(struct intel_uncore *uncore)
547 {
548 	u32 fifodbg;
549 
550 	fifodbg = __raw_uncore_read32(uncore, GTFIFODBG);
551 
552 	if (unlikely(fifodbg)) {
553 		drm_dbg(&uncore->i915->drm, "GTFIFODBG = 0x08%x\n", fifodbg);
554 		__raw_uncore_write32(uncore, GTFIFODBG, fifodbg);
555 	}
556 
557 	return fifodbg;
558 }
559 
560 static bool
561 check_for_unclaimed_mmio(struct intel_uncore *uncore)
562 {
563 	bool ret = false;
564 
565 	lockdep_assert_held(&uncore->debug->lock);
566 
567 	if (uncore->debug->suspend_count)
568 		return false;
569 
570 	if (intel_uncore_has_fpga_dbg_unclaimed(uncore))
571 		ret |= fpga_check_for_unclaimed_mmio(uncore);
572 
573 	if (intel_uncore_has_dbg_unclaimed(uncore))
574 		ret |= vlv_check_for_unclaimed_mmio(uncore);
575 
576 	if (intel_uncore_has_fifo(uncore))
577 		ret |= gen6_check_for_fifo_debug(uncore);
578 
579 	return ret;
580 }
581 
582 static void forcewake_early_sanitize(struct intel_uncore *uncore,
583 				     unsigned int restore_forcewake)
584 {
585 	GEM_BUG_ON(!intel_uncore_has_forcewake(uncore));
586 
587 	/* WaDisableShadowRegForCpd:chv */
588 	if (IS_CHERRYVIEW(uncore->i915)) {
589 		__raw_uncore_write32(uncore, GTFIFOCTL,
590 				     __raw_uncore_read32(uncore, GTFIFOCTL) |
591 				     GT_FIFO_CTL_BLOCK_ALL_POLICY_STALL |
592 				     GT_FIFO_CTL_RC6_POLICY_STALL);
593 	}
594 
595 	iosf_mbi_punit_acquire();
596 	intel_uncore_forcewake_reset(uncore);
597 	if (restore_forcewake) {
598 		spin_lock_irq(&uncore->lock);
599 		fw_domains_get(uncore, restore_forcewake);
600 
601 		if (intel_uncore_has_fifo(uncore))
602 			uncore->fifo_count = fifo_free_entries(uncore);
603 		spin_unlock_irq(&uncore->lock);
604 	}
605 	iosf_mbi_punit_release();
606 }
607 
608 void intel_uncore_suspend(struct intel_uncore *uncore)
609 {
610 	if (!intel_uncore_has_forcewake(uncore))
611 		return;
612 
613 	iosf_mbi_punit_acquire();
614 	iosf_mbi_unregister_pmic_bus_access_notifier_unlocked(
615 		&uncore->pmic_bus_access_nb);
616 	uncore->fw_domains_saved = intel_uncore_forcewake_reset(uncore);
617 	iosf_mbi_punit_release();
618 }
619 
620 void intel_uncore_resume_early(struct intel_uncore *uncore)
621 {
622 	unsigned int restore_forcewake;
623 
624 	if (intel_uncore_unclaimed_mmio(uncore))
625 		drm_dbg(&uncore->i915->drm, "unclaimed mmio detected on resume, clearing\n");
626 
627 	if (!intel_uncore_has_forcewake(uncore))
628 		return;
629 
630 	restore_forcewake = fetch_and_zero(&uncore->fw_domains_saved);
631 	forcewake_early_sanitize(uncore, restore_forcewake);
632 
633 	iosf_mbi_register_pmic_bus_access_notifier(&uncore->pmic_bus_access_nb);
634 }
635 
636 void intel_uncore_runtime_resume(struct intel_uncore *uncore)
637 {
638 	if (!intel_uncore_has_forcewake(uncore))
639 		return;
640 
641 	iosf_mbi_register_pmic_bus_access_notifier(&uncore->pmic_bus_access_nb);
642 }
643 
644 static void __intel_uncore_forcewake_get(struct intel_uncore *uncore,
645 					 enum forcewake_domains fw_domains)
646 {
647 	struct intel_uncore_forcewake_domain *domain;
648 	unsigned int tmp;
649 
650 	fw_domains &= uncore->fw_domains;
651 
652 	for_each_fw_domain_masked(domain, fw_domains, uncore, tmp) {
653 		if (domain->wake_count++) {
654 			fw_domains &= ~domain->mask;
655 			domain->active = true;
656 		}
657 	}
658 
659 	if (fw_domains)
660 		fw_domains_get(uncore, fw_domains);
661 }
662 
663 /**
664  * intel_uncore_forcewake_get - grab forcewake domain references
665  * @uncore: the intel_uncore structure
666  * @fw_domains: forcewake domains to get reference on
667  *
668  * This function can be used get GT's forcewake domain references.
669  * Normal register access will handle the forcewake domains automatically.
670  * However if some sequence requires the GT to not power down a particular
671  * forcewake domains this function should be called at the beginning of the
672  * sequence. And subsequently the reference should be dropped by symmetric
673  * call to intel_unforce_forcewake_put(). Usually caller wants all the domains
674  * to be kept awake so the @fw_domains would be then FORCEWAKE_ALL.
675  */
676 void intel_uncore_forcewake_get(struct intel_uncore *uncore,
677 				enum forcewake_domains fw_domains)
678 {
679 	unsigned long irqflags;
680 
681 	if (!uncore->fw_get_funcs)
682 		return;
683 
684 	assert_rpm_wakelock_held(uncore->rpm);
685 
686 	spin_lock_irqsave(&uncore->lock, irqflags);
687 	__intel_uncore_forcewake_get(uncore, fw_domains);
688 	spin_unlock_irqrestore(&uncore->lock, irqflags);
689 }
690 
691 /**
692  * intel_uncore_forcewake_user_get - claim forcewake on behalf of userspace
693  * @uncore: the intel_uncore structure
694  *
695  * This function is a wrapper around intel_uncore_forcewake_get() to acquire
696  * the GT powerwell and in the process disable our debugging for the
697  * duration of userspace's bypass.
698  */
699 void intel_uncore_forcewake_user_get(struct intel_uncore *uncore)
700 {
701 	spin_lock_irq(&uncore->lock);
702 	if (!uncore->user_forcewake_count++) {
703 		intel_uncore_forcewake_get__locked(uncore, FORCEWAKE_ALL);
704 		mmio_debug_suspend(uncore);
705 	}
706 	spin_unlock_irq(&uncore->lock);
707 }
708 
709 /**
710  * intel_uncore_forcewake_user_put - release forcewake on behalf of userspace
711  * @uncore: the intel_uncore structure
712  *
713  * This function complements intel_uncore_forcewake_user_get() and releases
714  * the GT powerwell taken on behalf of the userspace bypass.
715  */
716 void intel_uncore_forcewake_user_put(struct intel_uncore *uncore)
717 {
718 	spin_lock_irq(&uncore->lock);
719 	if (!--uncore->user_forcewake_count) {
720 		mmio_debug_resume(uncore);
721 		intel_uncore_forcewake_put__locked(uncore, FORCEWAKE_ALL);
722 	}
723 	spin_unlock_irq(&uncore->lock);
724 }
725 
726 /**
727  * intel_uncore_forcewake_get__locked - grab forcewake domain references
728  * @uncore: the intel_uncore structure
729  * @fw_domains: forcewake domains to get reference on
730  *
731  * See intel_uncore_forcewake_get(). This variant places the onus
732  * on the caller to explicitly handle the dev_priv->uncore.lock spinlock.
733  */
734 void intel_uncore_forcewake_get__locked(struct intel_uncore *uncore,
735 					enum forcewake_domains fw_domains)
736 {
737 	lockdep_assert_held(&uncore->lock);
738 
739 	if (!uncore->fw_get_funcs)
740 		return;
741 
742 	__intel_uncore_forcewake_get(uncore, fw_domains);
743 }
744 
745 static void __intel_uncore_forcewake_put(struct intel_uncore *uncore,
746 					 enum forcewake_domains fw_domains,
747 					 bool delayed)
748 {
749 	struct intel_uncore_forcewake_domain *domain;
750 	unsigned int tmp;
751 
752 	fw_domains &= uncore->fw_domains;
753 
754 	for_each_fw_domain_masked(domain, fw_domains, uncore, tmp) {
755 		GEM_BUG_ON(!domain->wake_count);
756 
757 		if (--domain->wake_count) {
758 			domain->active = true;
759 			continue;
760 		}
761 
762 		if (delayed &&
763 		    !(domain->uncore->fw_domains_timer & domain->mask))
764 			fw_domain_arm_timer(domain);
765 		else
766 			fw_domains_put(uncore, domain->mask);
767 	}
768 }
769 
770 /**
771  * intel_uncore_forcewake_put - release a forcewake domain reference
772  * @uncore: the intel_uncore structure
773  * @fw_domains: forcewake domains to put references
774  *
775  * This function drops the device-level forcewakes for specified
776  * domains obtained by intel_uncore_forcewake_get().
777  */
778 void intel_uncore_forcewake_put(struct intel_uncore *uncore,
779 				enum forcewake_domains fw_domains)
780 {
781 	unsigned long irqflags;
782 
783 	if (!uncore->fw_get_funcs)
784 		return;
785 
786 	spin_lock_irqsave(&uncore->lock, irqflags);
787 	__intel_uncore_forcewake_put(uncore, fw_domains, false);
788 	spin_unlock_irqrestore(&uncore->lock, irqflags);
789 }
790 
791 void intel_uncore_forcewake_put_delayed(struct intel_uncore *uncore,
792 					enum forcewake_domains fw_domains)
793 {
794 	unsigned long irqflags;
795 
796 	if (!uncore->fw_get_funcs)
797 		return;
798 
799 	spin_lock_irqsave(&uncore->lock, irqflags);
800 	__intel_uncore_forcewake_put(uncore, fw_domains, true);
801 	spin_unlock_irqrestore(&uncore->lock, irqflags);
802 }
803 
804 /**
805  * intel_uncore_forcewake_flush - flush the delayed release
806  * @uncore: the intel_uncore structure
807  * @fw_domains: forcewake domains to flush
808  */
809 void intel_uncore_forcewake_flush(struct intel_uncore *uncore,
810 				  enum forcewake_domains fw_domains)
811 {
812 	struct intel_uncore_forcewake_domain *domain;
813 	unsigned int tmp;
814 
815 	if (!uncore->fw_get_funcs)
816 		return;
817 
818 	fw_domains &= uncore->fw_domains;
819 	for_each_fw_domain_masked(domain, fw_domains, uncore, tmp) {
820 		WRITE_ONCE(domain->active, false);
821 		if (hrtimer_cancel(&domain->timer))
822 			intel_uncore_fw_release_timer(&domain->timer);
823 	}
824 }
825 
826 /**
827  * intel_uncore_forcewake_put__locked - grab forcewake domain references
828  * @uncore: the intel_uncore structure
829  * @fw_domains: forcewake domains to get reference on
830  *
831  * See intel_uncore_forcewake_put(). This variant places the onus
832  * on the caller to explicitly handle the dev_priv->uncore.lock spinlock.
833  */
834 void intel_uncore_forcewake_put__locked(struct intel_uncore *uncore,
835 					enum forcewake_domains fw_domains)
836 {
837 	lockdep_assert_held(&uncore->lock);
838 
839 	if (!uncore->fw_get_funcs)
840 		return;
841 
842 	__intel_uncore_forcewake_put(uncore, fw_domains, false);
843 }
844 
845 void assert_forcewakes_inactive(struct intel_uncore *uncore)
846 {
847 	if (!uncore->fw_get_funcs)
848 		return;
849 
850 	drm_WARN(&uncore->i915->drm, uncore->fw_domains_active,
851 		 "Expected all fw_domains to be inactive, but %08x are still on\n",
852 		 uncore->fw_domains_active);
853 }
854 
855 void assert_forcewakes_active(struct intel_uncore *uncore,
856 			      enum forcewake_domains fw_domains)
857 {
858 	struct intel_uncore_forcewake_domain *domain;
859 	unsigned int tmp;
860 
861 	if (!IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM))
862 		return;
863 
864 	if (!uncore->fw_get_funcs)
865 		return;
866 
867 	spin_lock_irq(&uncore->lock);
868 
869 	assert_rpm_wakelock_held(uncore->rpm);
870 
871 	fw_domains &= uncore->fw_domains;
872 	drm_WARN(&uncore->i915->drm, fw_domains & ~uncore->fw_domains_active,
873 		 "Expected %08x fw_domains to be active, but %08x are off\n",
874 		 fw_domains, fw_domains & ~uncore->fw_domains_active);
875 
876 	/*
877 	 * Check that the caller has an explicit wakeref and we don't mistake
878 	 * it for the auto wakeref.
879 	 */
880 	for_each_fw_domain_masked(domain, fw_domains, uncore, tmp) {
881 		unsigned int actual = READ_ONCE(domain->wake_count);
882 		unsigned int expect = 1;
883 
884 		if (uncore->fw_domains_timer & domain->mask)
885 			expect++; /* pending automatic release */
886 
887 		if (drm_WARN(&uncore->i915->drm, actual < expect,
888 			     "Expected domain %d to be held awake by caller, count=%d\n",
889 			     domain->id, actual))
890 			break;
891 	}
892 
893 	spin_unlock_irq(&uncore->lock);
894 }
895 
896 /*
897  * We give fast paths for the really cool registers.  The second range includes
898  * media domains (and the GSC starting from Xe_LPM+)
899  */
900 #define NEEDS_FORCE_WAKE(reg) ({ \
901 	u32 __reg = (reg); \
902 	__reg < 0x40000 || __reg >= 0x116000; \
903 })
904 
905 static int fw_range_cmp(u32 offset, const struct intel_forcewake_range *entry)
906 {
907 	if (offset < entry->start)
908 		return -1;
909 	else if (offset > entry->end)
910 		return 1;
911 	else
912 		return 0;
913 }
914 
915 /* Copied and "macroized" from lib/bsearch.c */
916 #define BSEARCH(key, base, num, cmp) ({                                 \
917 	unsigned int start__ = 0, end__ = (num);                        \
918 	typeof(base) result__ = NULL;                                   \
919 	while (start__ < end__) {                                       \
920 		unsigned int mid__ = start__ + (end__ - start__) / 2;   \
921 		int ret__ = (cmp)((key), (base) + mid__);               \
922 		if (ret__ < 0) {                                        \
923 			end__ = mid__;                                  \
924 		} else if (ret__ > 0) {                                 \
925 			start__ = mid__ + 1;                            \
926 		} else {                                                \
927 			result__ = (base) + mid__;                      \
928 			break;                                          \
929 		}                                                       \
930 	}                                                               \
931 	result__;                                                       \
932 })
933 
934 static enum forcewake_domains
935 find_fw_domain(struct intel_uncore *uncore, u32 offset)
936 {
937 	const struct intel_forcewake_range *entry;
938 
939 	if (IS_GSI_REG(offset))
940 		offset += uncore->gsi_offset;
941 
942 	entry = BSEARCH(offset,
943 			uncore->fw_domains_table,
944 			uncore->fw_domains_table_entries,
945 			fw_range_cmp);
946 
947 	if (!entry)
948 		return 0;
949 
950 	/*
951 	 * The list of FW domains depends on the SKU in gen11+ so we
952 	 * can't determine it statically. We use FORCEWAKE_ALL and
953 	 * translate it here to the list of available domains.
954 	 */
955 	if (entry->domains == FORCEWAKE_ALL)
956 		return uncore->fw_domains;
957 
958 	drm_WARN(&uncore->i915->drm, entry->domains & ~uncore->fw_domains,
959 		 "Uninitialized forcewake domain(s) 0x%x accessed at 0x%x\n",
960 		 entry->domains & ~uncore->fw_domains, offset);
961 
962 	return entry->domains;
963 }
964 
965 /*
966  * Shadowed register tables describe special register ranges that i915 is
967  * allowed to write to without acquiring forcewake.  If these registers' power
968  * wells are down, the hardware will save values written by i915 to a shadow
969  * copy and automatically transfer them into the real register the next time
970  * the power well is woken up.  Shadowing only applies to writes; forcewake
971  * must still be acquired when reading from registers in these ranges.
972  *
973  * The documentation for shadowed registers is somewhat spotty on older
974  * platforms.  However missing registers from these lists is non-fatal; it just
975  * means we'll wake up the hardware for some register accesses where we didn't
976  * really need to.
977  *
978  * The ranges listed in these tables must be sorted by offset.
979  *
980  * When adding new tables here, please also add them to
981  * intel_shadow_table_check() in selftests/intel_uncore.c so that they will be
982  * scanned for obvious mistakes or typos by the selftests.
983  */
984 
985 static const struct i915_range gen8_shadowed_regs[] = {
986 	{ .start =  0x2030, .end =  0x2030 },
987 	{ .start =  0xA008, .end =  0xA00C },
988 	{ .start = 0x12030, .end = 0x12030 },
989 	{ .start = 0x1a030, .end = 0x1a030 },
990 	{ .start = 0x22030, .end = 0x22030 },
991 };
992 
993 static const struct i915_range gen11_shadowed_regs[] = {
994 	{ .start =   0x2030, .end =   0x2030 },
995 	{ .start =   0x2550, .end =   0x2550 },
996 	{ .start =   0xA008, .end =   0xA00C },
997 	{ .start =  0x22030, .end =  0x22030 },
998 	{ .start =  0x22230, .end =  0x22230 },
999 	{ .start =  0x22510, .end =  0x22550 },
1000 	{ .start = 0x1C0030, .end = 0x1C0030 },
1001 	{ .start = 0x1C0230, .end = 0x1C0230 },
1002 	{ .start = 0x1C0510, .end = 0x1C0550 },
1003 	{ .start = 0x1C4030, .end = 0x1C4030 },
1004 	{ .start = 0x1C4230, .end = 0x1C4230 },
1005 	{ .start = 0x1C4510, .end = 0x1C4550 },
1006 	{ .start = 0x1C8030, .end = 0x1C8030 },
1007 	{ .start = 0x1C8230, .end = 0x1C8230 },
1008 	{ .start = 0x1C8510, .end = 0x1C8550 },
1009 	{ .start = 0x1D0030, .end = 0x1D0030 },
1010 	{ .start = 0x1D0230, .end = 0x1D0230 },
1011 	{ .start = 0x1D0510, .end = 0x1D0550 },
1012 	{ .start = 0x1D4030, .end = 0x1D4030 },
1013 	{ .start = 0x1D4230, .end = 0x1D4230 },
1014 	{ .start = 0x1D4510, .end = 0x1D4550 },
1015 	{ .start = 0x1D8030, .end = 0x1D8030 },
1016 	{ .start = 0x1D8230, .end = 0x1D8230 },
1017 	{ .start = 0x1D8510, .end = 0x1D8550 },
1018 };
1019 
1020 static const struct i915_range gen12_shadowed_regs[] = {
1021 	{ .start =   0x2030, .end =   0x2030 },
1022 	{ .start =   0x2510, .end =   0x2550 },
1023 	{ .start =   0xA008, .end =   0xA00C },
1024 	{ .start =   0xA188, .end =   0xA188 },
1025 	{ .start =   0xA278, .end =   0xA278 },
1026 	{ .start =   0xA540, .end =   0xA56C },
1027 	{ .start =   0xC4C8, .end =   0xC4C8 },
1028 	{ .start =   0xC4D4, .end =   0xC4D4 },
1029 	{ .start =   0xC600, .end =   0xC600 },
1030 	{ .start =  0x22030, .end =  0x22030 },
1031 	{ .start =  0x22510, .end =  0x22550 },
1032 	{ .start = 0x1C0030, .end = 0x1C0030 },
1033 	{ .start = 0x1C0510, .end = 0x1C0550 },
1034 	{ .start = 0x1C4030, .end = 0x1C4030 },
1035 	{ .start = 0x1C4510, .end = 0x1C4550 },
1036 	{ .start = 0x1C8030, .end = 0x1C8030 },
1037 	{ .start = 0x1C8510, .end = 0x1C8550 },
1038 	{ .start = 0x1D0030, .end = 0x1D0030 },
1039 	{ .start = 0x1D0510, .end = 0x1D0550 },
1040 	{ .start = 0x1D4030, .end = 0x1D4030 },
1041 	{ .start = 0x1D4510, .end = 0x1D4550 },
1042 	{ .start = 0x1D8030, .end = 0x1D8030 },
1043 	{ .start = 0x1D8510, .end = 0x1D8550 },
1044 
1045 	/*
1046 	 * The rest of these ranges are specific to Xe_HP and beyond, but
1047 	 * are reserved/unused ranges on earlier gen12 platforms, so they can
1048 	 * be safely added to the gen12 table.
1049 	 */
1050 	{ .start = 0x1E0030, .end = 0x1E0030 },
1051 	{ .start = 0x1E0510, .end = 0x1E0550 },
1052 	{ .start = 0x1E4030, .end = 0x1E4030 },
1053 	{ .start = 0x1E4510, .end = 0x1E4550 },
1054 	{ .start = 0x1E8030, .end = 0x1E8030 },
1055 	{ .start = 0x1E8510, .end = 0x1E8550 },
1056 	{ .start = 0x1F0030, .end = 0x1F0030 },
1057 	{ .start = 0x1F0510, .end = 0x1F0550 },
1058 	{ .start = 0x1F4030, .end = 0x1F4030 },
1059 	{ .start = 0x1F4510, .end = 0x1F4550 },
1060 	{ .start = 0x1F8030, .end = 0x1F8030 },
1061 	{ .start = 0x1F8510, .end = 0x1F8550 },
1062 };
1063 
1064 static const struct i915_range dg2_shadowed_regs[] = {
1065 	{ .start =   0x2030, .end =   0x2030 },
1066 	{ .start =   0x2510, .end =   0x2550 },
1067 	{ .start =   0xA008, .end =   0xA00C },
1068 	{ .start =   0xA188, .end =   0xA188 },
1069 	{ .start =   0xA278, .end =   0xA278 },
1070 	{ .start =   0xA540, .end =   0xA56C },
1071 	{ .start =   0xC4C8, .end =   0xC4C8 },
1072 	{ .start =   0xC4E0, .end =   0xC4E0 },
1073 	{ .start =   0xC600, .end =   0xC600 },
1074 	{ .start =   0xC658, .end =   0xC658 },
1075 	{ .start =  0x22030, .end =  0x22030 },
1076 	{ .start =  0x22510, .end =  0x22550 },
1077 	{ .start = 0x1C0030, .end = 0x1C0030 },
1078 	{ .start = 0x1C0510, .end = 0x1C0550 },
1079 	{ .start = 0x1C4030, .end = 0x1C4030 },
1080 	{ .start = 0x1C4510, .end = 0x1C4550 },
1081 	{ .start = 0x1C8030, .end = 0x1C8030 },
1082 	{ .start = 0x1C8510, .end = 0x1C8550 },
1083 	{ .start = 0x1D0030, .end = 0x1D0030 },
1084 	{ .start = 0x1D0510, .end = 0x1D0550 },
1085 	{ .start = 0x1D4030, .end = 0x1D4030 },
1086 	{ .start = 0x1D4510, .end = 0x1D4550 },
1087 	{ .start = 0x1D8030, .end = 0x1D8030 },
1088 	{ .start = 0x1D8510, .end = 0x1D8550 },
1089 	{ .start = 0x1E0030, .end = 0x1E0030 },
1090 	{ .start = 0x1E0510, .end = 0x1E0550 },
1091 	{ .start = 0x1E4030, .end = 0x1E4030 },
1092 	{ .start = 0x1E4510, .end = 0x1E4550 },
1093 	{ .start = 0x1E8030, .end = 0x1E8030 },
1094 	{ .start = 0x1E8510, .end = 0x1E8550 },
1095 	{ .start = 0x1F0030, .end = 0x1F0030 },
1096 	{ .start = 0x1F0510, .end = 0x1F0550 },
1097 	{ .start = 0x1F4030, .end = 0x1F4030 },
1098 	{ .start = 0x1F4510, .end = 0x1F4550 },
1099 	{ .start = 0x1F8030, .end = 0x1F8030 },
1100 	{ .start = 0x1F8510, .end = 0x1F8550 },
1101 };
1102 
1103 static const struct i915_range pvc_shadowed_regs[] = {
1104 	{ .start =   0x2030, .end =   0x2030 },
1105 	{ .start =   0x2510, .end =   0x2550 },
1106 	{ .start =   0xA008, .end =   0xA00C },
1107 	{ .start =   0xA188, .end =   0xA188 },
1108 	{ .start =   0xA278, .end =   0xA278 },
1109 	{ .start =   0xA540, .end =   0xA56C },
1110 	{ .start =   0xC4C8, .end =   0xC4C8 },
1111 	{ .start =   0xC4E0, .end =   0xC4E0 },
1112 	{ .start =   0xC600, .end =   0xC600 },
1113 	{ .start =   0xC658, .end =   0xC658 },
1114 	{ .start =  0x22030, .end =  0x22030 },
1115 	{ .start =  0x22510, .end =  0x22550 },
1116 	{ .start = 0x1C0030, .end = 0x1C0030 },
1117 	{ .start = 0x1C0510, .end = 0x1C0550 },
1118 	{ .start = 0x1C4030, .end = 0x1C4030 },
1119 	{ .start = 0x1C4510, .end = 0x1C4550 },
1120 	{ .start = 0x1C8030, .end = 0x1C8030 },
1121 	{ .start = 0x1C8510, .end = 0x1C8550 },
1122 	{ .start = 0x1D0030, .end = 0x1D0030 },
1123 	{ .start = 0x1D0510, .end = 0x1D0550 },
1124 	{ .start = 0x1D4030, .end = 0x1D4030 },
1125 	{ .start = 0x1D4510, .end = 0x1D4550 },
1126 	{ .start = 0x1D8030, .end = 0x1D8030 },
1127 	{ .start = 0x1D8510, .end = 0x1D8550 },
1128 	{ .start = 0x1E0030, .end = 0x1E0030 },
1129 	{ .start = 0x1E0510, .end = 0x1E0550 },
1130 	{ .start = 0x1E4030, .end = 0x1E4030 },
1131 	{ .start = 0x1E4510, .end = 0x1E4550 },
1132 	{ .start = 0x1E8030, .end = 0x1E8030 },
1133 	{ .start = 0x1E8510, .end = 0x1E8550 },
1134 	{ .start = 0x1F0030, .end = 0x1F0030 },
1135 	{ .start = 0x1F0510, .end = 0x1F0550 },
1136 	{ .start = 0x1F4030, .end = 0x1F4030 },
1137 	{ .start = 0x1F4510, .end = 0x1F4550 },
1138 	{ .start = 0x1F8030, .end = 0x1F8030 },
1139 	{ .start = 0x1F8510, .end = 0x1F8550 },
1140 };
1141 
1142 static const struct i915_range mtl_shadowed_regs[] = {
1143 	{ .start =   0x2030, .end =   0x2030 },
1144 	{ .start =   0x2510, .end =   0x2550 },
1145 	{ .start =   0xA008, .end =   0xA00C },
1146 	{ .start =   0xA188, .end =   0xA188 },
1147 	{ .start =   0xA278, .end =   0xA278 },
1148 	{ .start =   0xA540, .end =   0xA56C },
1149 	{ .start =   0xC050, .end =   0xC050 },
1150 	{ .start =   0xC340, .end =   0xC340 },
1151 	{ .start =   0xC4C8, .end =   0xC4C8 },
1152 	{ .start =   0xC4E0, .end =   0xC4E0 },
1153 	{ .start =   0xC600, .end =   0xC600 },
1154 	{ .start =   0xC658, .end =   0xC658 },
1155 	{ .start =   0xCFD4, .end =   0xCFDC },
1156 	{ .start =  0x22030, .end =  0x22030 },
1157 	{ .start =  0x22510, .end =  0x22550 },
1158 };
1159 
1160 static const struct i915_range xelpmp_shadowed_regs[] = {
1161 	{ .start = 0x1C0030, .end = 0x1C0030 },
1162 	{ .start = 0x1C0510, .end = 0x1C0550 },
1163 	{ .start = 0x1C8030, .end = 0x1C8030 },
1164 	{ .start = 0x1C8510, .end = 0x1C8550 },
1165 	{ .start = 0x1D0030, .end = 0x1D0030 },
1166 	{ .start = 0x1D0510, .end = 0x1D0550 },
1167 	{ .start = 0x38A008, .end = 0x38A00C },
1168 	{ .start = 0x38A188, .end = 0x38A188 },
1169 	{ .start = 0x38A278, .end = 0x38A278 },
1170 	{ .start = 0x38A540, .end = 0x38A56C },
1171 	{ .start = 0x38A618, .end = 0x38A618 },
1172 	{ .start = 0x38C050, .end = 0x38C050 },
1173 	{ .start = 0x38C340, .end = 0x38C340 },
1174 	{ .start = 0x38C4C8, .end = 0x38C4C8 },
1175 	{ .start = 0x38C4E0, .end = 0x38C4E4 },
1176 	{ .start = 0x38C600, .end = 0x38C600 },
1177 	{ .start = 0x38C658, .end = 0x38C658 },
1178 	{ .start = 0x38CFD4, .end = 0x38CFDC },
1179 };
1180 
1181 static int mmio_range_cmp(u32 key, const struct i915_range *range)
1182 {
1183 	if (key < range->start)
1184 		return -1;
1185 	else if (key > range->end)
1186 		return 1;
1187 	else
1188 		return 0;
1189 }
1190 
1191 static bool is_shadowed(struct intel_uncore *uncore, u32 offset)
1192 {
1193 	if (drm_WARN_ON(&uncore->i915->drm, !uncore->shadowed_reg_table))
1194 		return false;
1195 
1196 	if (IS_GSI_REG(offset))
1197 		offset += uncore->gsi_offset;
1198 
1199 	return BSEARCH(offset,
1200 		       uncore->shadowed_reg_table,
1201 		       uncore->shadowed_reg_table_entries,
1202 		       mmio_range_cmp);
1203 }
1204 
1205 static enum forcewake_domains
1206 gen6_reg_write_fw_domains(struct intel_uncore *uncore, i915_reg_t reg)
1207 {
1208 	return FORCEWAKE_RENDER;
1209 }
1210 
1211 #define __fwtable_reg_read_fw_domains(uncore, offset) \
1212 ({ \
1213 	enum forcewake_domains __fwd = 0; \
1214 	if (NEEDS_FORCE_WAKE((offset))) \
1215 		__fwd = find_fw_domain(uncore, offset); \
1216 	__fwd; \
1217 })
1218 
1219 #define __fwtable_reg_write_fw_domains(uncore, offset) \
1220 ({ \
1221 	enum forcewake_domains __fwd = 0; \
1222 	const u32 __offset = (offset); \
1223 	if (NEEDS_FORCE_WAKE((__offset)) && !is_shadowed(uncore, __offset)) \
1224 		__fwd = find_fw_domain(uncore, __offset); \
1225 	__fwd; \
1226 })
1227 
1228 #define GEN_FW_RANGE(s, e, d) \
1229 	{ .start = (s), .end = (e), .domains = (d) }
1230 
1231 /*
1232  * All platforms' forcewake tables below must be sorted by offset ranges.
1233  * Furthermore, new forcewake tables added should be "watertight" and have
1234  * no gaps between ranges.
1235  *
1236  * When there are multiple consecutive ranges listed in the bspec with
1237  * the same forcewake domain, it is customary to combine them into a single
1238  * row in the tables below to keep the tables small and lookups fast.
1239  * Likewise, reserved/unused ranges may be combined with the preceding and/or
1240  * following ranges since the driver will never be making MMIO accesses in
1241  * those ranges.
1242  *
1243  * For example, if the bspec were to list:
1244  *
1245  *    ...
1246  *    0x1000 - 0x1fff:  GT
1247  *    0x2000 - 0x2cff:  GT
1248  *    0x2d00 - 0x2fff:  unused/reserved
1249  *    0x3000 - 0xffff:  GT
1250  *    ...
1251  *
1252  * these could all be represented by a single line in the code:
1253  *
1254  *   GEN_FW_RANGE(0x1000, 0xffff, FORCEWAKE_GT)
1255  *
1256  * When adding new forcewake tables here, please also add them to
1257  * intel_uncore_mock_selftests in selftests/intel_uncore.c so that they will be
1258  * scanned for obvious mistakes or typos by the selftests.
1259  */
1260 
1261 static const struct intel_forcewake_range __gen6_fw_ranges[] = {
1262 	GEN_FW_RANGE(0x0, 0x3ffff, FORCEWAKE_RENDER),
1263 };
1264 
1265 static const struct intel_forcewake_range __vlv_fw_ranges[] = {
1266 	GEN_FW_RANGE(0x2000, 0x3fff, FORCEWAKE_RENDER),
1267 	GEN_FW_RANGE(0x5000, 0x7fff, FORCEWAKE_RENDER),
1268 	GEN_FW_RANGE(0xb000, 0x11fff, FORCEWAKE_RENDER),
1269 	GEN_FW_RANGE(0x12000, 0x13fff, FORCEWAKE_MEDIA),
1270 	GEN_FW_RANGE(0x22000, 0x23fff, FORCEWAKE_MEDIA),
1271 	GEN_FW_RANGE(0x2e000, 0x2ffff, FORCEWAKE_RENDER),
1272 	GEN_FW_RANGE(0x30000, 0x3ffff, FORCEWAKE_MEDIA),
1273 };
1274 
1275 static const struct intel_forcewake_range __chv_fw_ranges[] = {
1276 	GEN_FW_RANGE(0x2000, 0x3fff, FORCEWAKE_RENDER),
1277 	GEN_FW_RANGE(0x4000, 0x4fff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA),
1278 	GEN_FW_RANGE(0x5200, 0x7fff, FORCEWAKE_RENDER),
1279 	GEN_FW_RANGE(0x8000, 0x82ff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA),
1280 	GEN_FW_RANGE(0x8300, 0x84ff, FORCEWAKE_RENDER),
1281 	GEN_FW_RANGE(0x8500, 0x85ff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA),
1282 	GEN_FW_RANGE(0x8800, 0x88ff, FORCEWAKE_MEDIA),
1283 	GEN_FW_RANGE(0x9000, 0xafff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA),
1284 	GEN_FW_RANGE(0xb000, 0xb47f, FORCEWAKE_RENDER),
1285 	GEN_FW_RANGE(0xd000, 0xd7ff, FORCEWAKE_MEDIA),
1286 	GEN_FW_RANGE(0xe000, 0xe7ff, FORCEWAKE_RENDER),
1287 	GEN_FW_RANGE(0xf000, 0xffff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA),
1288 	GEN_FW_RANGE(0x12000, 0x13fff, FORCEWAKE_MEDIA),
1289 	GEN_FW_RANGE(0x1a000, 0x1bfff, FORCEWAKE_MEDIA),
1290 	GEN_FW_RANGE(0x1e800, 0x1e9ff, FORCEWAKE_MEDIA),
1291 	GEN_FW_RANGE(0x30000, 0x37fff, FORCEWAKE_MEDIA),
1292 };
1293 
1294 static const struct intel_forcewake_range __gen9_fw_ranges[] = {
1295 	GEN_FW_RANGE(0x0, 0xaff, FORCEWAKE_GT),
1296 	GEN_FW_RANGE(0xb00, 0x1fff, 0), /* uncore range */
1297 	GEN_FW_RANGE(0x2000, 0x26ff, FORCEWAKE_RENDER),
1298 	GEN_FW_RANGE(0x2700, 0x2fff, FORCEWAKE_GT),
1299 	GEN_FW_RANGE(0x3000, 0x3fff, FORCEWAKE_RENDER),
1300 	GEN_FW_RANGE(0x4000, 0x51ff, FORCEWAKE_GT),
1301 	GEN_FW_RANGE(0x5200, 0x7fff, FORCEWAKE_RENDER),
1302 	GEN_FW_RANGE(0x8000, 0x812f, FORCEWAKE_GT),
1303 	GEN_FW_RANGE(0x8130, 0x813f, FORCEWAKE_MEDIA),
1304 	GEN_FW_RANGE(0x8140, 0x815f, FORCEWAKE_RENDER),
1305 	GEN_FW_RANGE(0x8160, 0x82ff, FORCEWAKE_GT),
1306 	GEN_FW_RANGE(0x8300, 0x84ff, FORCEWAKE_RENDER),
1307 	GEN_FW_RANGE(0x8500, 0x87ff, FORCEWAKE_GT),
1308 	GEN_FW_RANGE(0x8800, 0x89ff, FORCEWAKE_MEDIA),
1309 	GEN_FW_RANGE(0x8a00, 0x8bff, FORCEWAKE_GT),
1310 	GEN_FW_RANGE(0x8c00, 0x8cff, FORCEWAKE_RENDER),
1311 	GEN_FW_RANGE(0x8d00, 0x93ff, FORCEWAKE_GT),
1312 	GEN_FW_RANGE(0x9400, 0x97ff, FORCEWAKE_RENDER | FORCEWAKE_MEDIA),
1313 	GEN_FW_RANGE(0x9800, 0xafff, FORCEWAKE_GT),
1314 	GEN_FW_RANGE(0xb000, 0xb47f, FORCEWAKE_RENDER),
1315 	GEN_FW_RANGE(0xb480, 0xcfff, FORCEWAKE_GT),
1316 	GEN_FW_RANGE(0xd000, 0xd7ff, FORCEWAKE_MEDIA),
1317 	GEN_FW_RANGE(0xd800, 0xdfff, FORCEWAKE_GT),
1318 	GEN_FW_RANGE(0xe000, 0xe8ff, FORCEWAKE_RENDER),
1319 	GEN_FW_RANGE(0xe900, 0x11fff, FORCEWAKE_GT),
1320 	GEN_FW_RANGE(0x12000, 0x13fff, FORCEWAKE_MEDIA),
1321 	GEN_FW_RANGE(0x14000, 0x19fff, FORCEWAKE_GT),
1322 	GEN_FW_RANGE(0x1a000, 0x1e9ff, FORCEWAKE_MEDIA),
1323 	GEN_FW_RANGE(0x1ea00, 0x243ff, FORCEWAKE_GT),
1324 	GEN_FW_RANGE(0x24400, 0x247ff, FORCEWAKE_RENDER),
1325 	GEN_FW_RANGE(0x24800, 0x2ffff, FORCEWAKE_GT),
1326 	GEN_FW_RANGE(0x30000, 0x3ffff, FORCEWAKE_MEDIA),
1327 };
1328 
1329 static const struct intel_forcewake_range __gen11_fw_ranges[] = {
1330 	GEN_FW_RANGE(0x0, 0x1fff, 0), /* uncore range */
1331 	GEN_FW_RANGE(0x2000, 0x26ff, FORCEWAKE_RENDER),
1332 	GEN_FW_RANGE(0x2700, 0x2fff, FORCEWAKE_GT),
1333 	GEN_FW_RANGE(0x3000, 0x3fff, FORCEWAKE_RENDER),
1334 	GEN_FW_RANGE(0x4000, 0x51ff, FORCEWAKE_GT),
1335 	GEN_FW_RANGE(0x5200, 0x7fff, FORCEWAKE_RENDER),
1336 	GEN_FW_RANGE(0x8000, 0x813f, FORCEWAKE_GT),
1337 	GEN_FW_RANGE(0x8140, 0x815f, FORCEWAKE_RENDER),
1338 	GEN_FW_RANGE(0x8160, 0x82ff, FORCEWAKE_GT),
1339 	GEN_FW_RANGE(0x8300, 0x84ff, FORCEWAKE_RENDER),
1340 	GEN_FW_RANGE(0x8500, 0x87ff, FORCEWAKE_GT),
1341 	GEN_FW_RANGE(0x8800, 0x8bff, 0),
1342 	GEN_FW_RANGE(0x8c00, 0x8cff, FORCEWAKE_RENDER),
1343 	GEN_FW_RANGE(0x8d00, 0x94cf, FORCEWAKE_GT),
1344 	GEN_FW_RANGE(0x94d0, 0x955f, FORCEWAKE_RENDER),
1345 	GEN_FW_RANGE(0x9560, 0x95ff, 0),
1346 	GEN_FW_RANGE(0x9600, 0xafff, FORCEWAKE_GT),
1347 	GEN_FW_RANGE(0xb000, 0xb47f, FORCEWAKE_RENDER),
1348 	GEN_FW_RANGE(0xb480, 0xdeff, FORCEWAKE_GT),
1349 	GEN_FW_RANGE(0xdf00, 0xe8ff, FORCEWAKE_RENDER),
1350 	GEN_FW_RANGE(0xe900, 0x16dff, FORCEWAKE_GT),
1351 	GEN_FW_RANGE(0x16e00, 0x19fff, FORCEWAKE_RENDER),
1352 	GEN_FW_RANGE(0x1a000, 0x23fff, FORCEWAKE_GT),
1353 	GEN_FW_RANGE(0x24000, 0x2407f, 0),
1354 	GEN_FW_RANGE(0x24080, 0x2417f, FORCEWAKE_GT),
1355 	GEN_FW_RANGE(0x24180, 0x242ff, FORCEWAKE_RENDER),
1356 	GEN_FW_RANGE(0x24300, 0x243ff, FORCEWAKE_GT),
1357 	GEN_FW_RANGE(0x24400, 0x24fff, FORCEWAKE_RENDER),
1358 	GEN_FW_RANGE(0x25000, 0x3ffff, FORCEWAKE_GT),
1359 	GEN_FW_RANGE(0x40000, 0x1bffff, 0),
1360 	GEN_FW_RANGE(0x1c0000, 0x1c3fff, FORCEWAKE_MEDIA_VDBOX0),
1361 	GEN_FW_RANGE(0x1c4000, 0x1c7fff, 0),
1362 	GEN_FW_RANGE(0x1c8000, 0x1cffff, FORCEWAKE_MEDIA_VEBOX0),
1363 	GEN_FW_RANGE(0x1d0000, 0x1d3fff, FORCEWAKE_MEDIA_VDBOX2),
1364 	GEN_FW_RANGE(0x1d4000, 0x1dbfff, 0)
1365 };
1366 
1367 static const struct intel_forcewake_range __gen12_fw_ranges[] = {
1368 	GEN_FW_RANGE(0x0, 0x1fff, 0), /*
1369 		0x0   -  0xaff: reserved
1370 		0xb00 - 0x1fff: always on */
1371 	GEN_FW_RANGE(0x2000, 0x26ff, FORCEWAKE_RENDER),
1372 	GEN_FW_RANGE(0x2700, 0x27ff, FORCEWAKE_GT),
1373 	GEN_FW_RANGE(0x2800, 0x2aff, FORCEWAKE_RENDER),
1374 	GEN_FW_RANGE(0x2b00, 0x2fff, FORCEWAKE_GT),
1375 	GEN_FW_RANGE(0x3000, 0x3fff, FORCEWAKE_RENDER),
1376 	GEN_FW_RANGE(0x4000, 0x51ff, FORCEWAKE_GT), /*
1377 		0x4000 - 0x48ff: gt
1378 		0x4900 - 0x51ff: reserved */
1379 	GEN_FW_RANGE(0x5200, 0x7fff, FORCEWAKE_RENDER), /*
1380 		0x5200 - 0x53ff: render
1381 		0x5400 - 0x54ff: reserved
1382 		0x5500 - 0x7fff: render */
1383 	GEN_FW_RANGE(0x8000, 0x813f, FORCEWAKE_GT),
1384 	GEN_FW_RANGE(0x8140, 0x815f, FORCEWAKE_RENDER),
1385 	GEN_FW_RANGE(0x8160, 0x81ff, 0), /*
1386 		0x8160 - 0x817f: reserved
1387 		0x8180 - 0x81ff: always on */
1388 	GEN_FW_RANGE(0x8200, 0x82ff, FORCEWAKE_GT),
1389 	GEN_FW_RANGE(0x8300, 0x84ff, FORCEWAKE_RENDER),
1390 	GEN_FW_RANGE(0x8500, 0x94cf, FORCEWAKE_GT), /*
1391 		0x8500 - 0x87ff: gt
1392 		0x8800 - 0x8fff: reserved
1393 		0x9000 - 0x947f: gt
1394 		0x9480 - 0x94cf: reserved */
1395 	GEN_FW_RANGE(0x94d0, 0x955f, FORCEWAKE_RENDER),
1396 	GEN_FW_RANGE(0x9560, 0x97ff, 0), /*
1397 		0x9560 - 0x95ff: always on
1398 		0x9600 - 0x97ff: reserved */
1399 	GEN_FW_RANGE(0x9800, 0xafff, FORCEWAKE_GT),
1400 	GEN_FW_RANGE(0xb000, 0xb3ff, FORCEWAKE_RENDER),
1401 	GEN_FW_RANGE(0xb400, 0xcfff, FORCEWAKE_GT), /*
1402 		0xb400 - 0xbf7f: gt
1403 		0xb480 - 0xbfff: reserved
1404 		0xc000 - 0xcfff: gt */
1405 	GEN_FW_RANGE(0xd000, 0xd7ff, 0),
1406 	GEN_FW_RANGE(0xd800, 0xd8ff, FORCEWAKE_RENDER),
1407 	GEN_FW_RANGE(0xd900, 0xdbff, FORCEWAKE_GT),
1408 	GEN_FW_RANGE(0xdc00, 0xefff, FORCEWAKE_RENDER), /*
1409 		0xdc00 - 0xddff: render
1410 		0xde00 - 0xde7f: reserved
1411 		0xde80 - 0xe8ff: render
1412 		0xe900 - 0xefff: reserved */
1413 	GEN_FW_RANGE(0xf000, 0x147ff, FORCEWAKE_GT), /*
1414 		 0xf000 - 0xffff: gt
1415 		0x10000 - 0x147ff: reserved */
1416 	GEN_FW_RANGE(0x14800, 0x1ffff, FORCEWAKE_RENDER), /*
1417 		0x14800 - 0x14fff: render
1418 		0x15000 - 0x16dff: reserved
1419 		0x16e00 - 0x1bfff: render
1420 		0x1c000 - 0x1ffff: reserved */
1421 	GEN_FW_RANGE(0x20000, 0x20fff, FORCEWAKE_MEDIA_VDBOX0),
1422 	GEN_FW_RANGE(0x21000, 0x21fff, FORCEWAKE_MEDIA_VDBOX2),
1423 	GEN_FW_RANGE(0x22000, 0x23fff, FORCEWAKE_GT),
1424 	GEN_FW_RANGE(0x24000, 0x2417f, 0), /*
1425 		0x24000 - 0x2407f: always on
1426 		0x24080 - 0x2417f: reserved */
1427 	GEN_FW_RANGE(0x24180, 0x249ff, FORCEWAKE_GT), /*
1428 		0x24180 - 0x241ff: gt
1429 		0x24200 - 0x249ff: reserved */
1430 	GEN_FW_RANGE(0x24a00, 0x251ff, FORCEWAKE_RENDER), /*
1431 		0x24a00 - 0x24a7f: render
1432 		0x24a80 - 0x251ff: reserved */
1433 	GEN_FW_RANGE(0x25200, 0x255ff, FORCEWAKE_GT), /*
1434 		0x25200 - 0x252ff: gt
1435 		0x25300 - 0x255ff: reserved */
1436 	GEN_FW_RANGE(0x25600, 0x2567f, FORCEWAKE_MEDIA_VDBOX0),
1437 	GEN_FW_RANGE(0x25680, 0x259ff, FORCEWAKE_MEDIA_VDBOX2), /*
1438 		0x25680 - 0x256ff: VD2
1439 		0x25700 - 0x259ff: reserved */
1440 	GEN_FW_RANGE(0x25a00, 0x25a7f, FORCEWAKE_MEDIA_VDBOX0),
1441 	GEN_FW_RANGE(0x25a80, 0x2ffff, FORCEWAKE_MEDIA_VDBOX2), /*
1442 		0x25a80 - 0x25aff: VD2
1443 		0x25b00 - 0x2ffff: reserved */
1444 	GEN_FW_RANGE(0x30000, 0x3ffff, FORCEWAKE_GT),
1445 	GEN_FW_RANGE(0x40000, 0x1bffff, 0),
1446 	GEN_FW_RANGE(0x1c0000, 0x1c3fff, FORCEWAKE_MEDIA_VDBOX0), /*
1447 		0x1c0000 - 0x1c2bff: VD0
1448 		0x1c2c00 - 0x1c2cff: reserved
1449 		0x1c2d00 - 0x1c2dff: VD0
1450 		0x1c2e00 - 0x1c3eff: reserved
1451 		0x1c3f00 - 0x1c3fff: VD0 */
1452 	GEN_FW_RANGE(0x1c4000, 0x1c7fff, 0),
1453 	GEN_FW_RANGE(0x1c8000, 0x1cbfff, FORCEWAKE_MEDIA_VEBOX0), /*
1454 		0x1c8000 - 0x1ca0ff: VE0
1455 		0x1ca100 - 0x1cbeff: reserved
1456 		0x1cbf00 - 0x1cbfff: VE0 */
1457 	GEN_FW_RANGE(0x1cc000, 0x1cffff, FORCEWAKE_MEDIA_VDBOX0), /*
1458 		0x1cc000 - 0x1ccfff: VD0
1459 		0x1cd000 - 0x1cffff: reserved */
1460 	GEN_FW_RANGE(0x1d0000, 0x1d3fff, FORCEWAKE_MEDIA_VDBOX2), /*
1461 		0x1d0000 - 0x1d2bff: VD2
1462 		0x1d2c00 - 0x1d2cff: reserved
1463 		0x1d2d00 - 0x1d2dff: VD2
1464 		0x1d2e00 - 0x1d3eff: reserved
1465 		0x1d3f00 - 0x1d3fff: VD2 */
1466 };
1467 
1468 /*
1469  * Graphics IP version 12.55 brings a slight change to the 0xd800 range,
1470  * switching it from the GT domain to the render domain.
1471  */
1472 #define XEHP_FWRANGES(FW_RANGE_D800)					\
1473 	GEN_FW_RANGE(0x0, 0x1fff, 0), /*					\
1474 		  0x0 -  0xaff: reserved					\
1475 		0xb00 - 0x1fff: always on */					\
1476 	GEN_FW_RANGE(0x2000, 0x26ff, FORCEWAKE_RENDER),				\
1477 	GEN_FW_RANGE(0x2700, 0x4aff, FORCEWAKE_GT),				\
1478 	GEN_FW_RANGE(0x4b00, 0x51ff, 0), /*					\
1479 		0x4b00 - 0x4fff: reserved					\
1480 		0x5000 - 0x51ff: always on */					\
1481 	GEN_FW_RANGE(0x5200, 0x7fff, FORCEWAKE_RENDER),				\
1482 	GEN_FW_RANGE(0x8000, 0x813f, FORCEWAKE_GT),				\
1483 	GEN_FW_RANGE(0x8140, 0x815f, FORCEWAKE_RENDER),				\
1484 	GEN_FW_RANGE(0x8160, 0x81ff, 0), /*					\
1485 		0x8160 - 0x817f: reserved					\
1486 		0x8180 - 0x81ff: always on */					\
1487 	GEN_FW_RANGE(0x8200, 0x82ff, FORCEWAKE_GT),				\
1488 	GEN_FW_RANGE(0x8300, 0x84ff, FORCEWAKE_RENDER),				\
1489 	GEN_FW_RANGE(0x8500, 0x8cff, FORCEWAKE_GT), /*				\
1490 		0x8500 - 0x87ff: gt						\
1491 		0x8800 - 0x8c7f: reserved					\
1492 		0x8c80 - 0x8cff: gt (DG2 only) */				\
1493 	GEN_FW_RANGE(0x8d00, 0x8fff, FORCEWAKE_RENDER), /*			\
1494 		0x8d00 - 0x8dff: render (DG2 only)				\
1495 		0x8e00 - 0x8fff: reserved */					\
1496 	GEN_FW_RANGE(0x9000, 0x94cf, FORCEWAKE_GT), /*				\
1497 		0x9000 - 0x947f: gt						\
1498 		0x9480 - 0x94cf: reserved */					\
1499 	GEN_FW_RANGE(0x94d0, 0x955f, FORCEWAKE_RENDER),				\
1500 	GEN_FW_RANGE(0x9560, 0x967f, 0), /*					\
1501 		0x9560 - 0x95ff: always on					\
1502 		0x9600 - 0x967f: reserved */					\
1503 	GEN_FW_RANGE(0x9680, 0x97ff, FORCEWAKE_RENDER), /*			\
1504 		0x9680 - 0x96ff: render (DG2 only)				\
1505 		0x9700 - 0x97ff: reserved */					\
1506 	GEN_FW_RANGE(0x9800, 0xcfff, FORCEWAKE_GT), /*				\
1507 		0x9800 - 0xb4ff: gt						\
1508 		0xb500 - 0xbfff: reserved					\
1509 		0xc000 - 0xcfff: gt */						\
1510 	GEN_FW_RANGE(0xd000, 0xd7ff, 0),					\
1511 	GEN_FW_RANGE(0xd800, 0xd87f, FW_RANGE_D800),			\
1512 	GEN_FW_RANGE(0xd880, 0xdbff, FORCEWAKE_GT),				\
1513 	GEN_FW_RANGE(0xdc00, 0xdcff, FORCEWAKE_RENDER),				\
1514 	GEN_FW_RANGE(0xdd00, 0xde7f, FORCEWAKE_GT), /*				\
1515 		0xdd00 - 0xddff: gt						\
1516 		0xde00 - 0xde7f: reserved */					\
1517 	GEN_FW_RANGE(0xde80, 0xe8ff, FORCEWAKE_RENDER), /*			\
1518 		0xde80 - 0xdfff: render						\
1519 		0xe000 - 0xe0ff: reserved					\
1520 		0xe100 - 0xe8ff: render */					\
1521 	GEN_FW_RANGE(0xe900, 0xffff, FORCEWAKE_GT), /*				\
1522 		0xe900 - 0xe9ff: gt						\
1523 		0xea00 - 0xefff: reserved					\
1524 		0xf000 - 0xffff: gt */						\
1525 	GEN_FW_RANGE(0x10000, 0x12fff, 0), /*					\
1526 		0x10000 - 0x11fff: reserved					\
1527 		0x12000 - 0x127ff: always on					\
1528 		0x12800 - 0x12fff: reserved */					\
1529 	GEN_FW_RANGE(0x13000, 0x131ff, FORCEWAKE_MEDIA_VDBOX0), /* DG2 only */	\
1530 	GEN_FW_RANGE(0x13200, 0x13fff, FORCEWAKE_MEDIA_VDBOX2), /*		\
1531 		0x13200 - 0x133ff: VD2 (DG2 only)				\
1532 		0x13400 - 0x13fff: reserved */					\
1533 	GEN_FW_RANGE(0x14000, 0x141ff, FORCEWAKE_MEDIA_VDBOX0), /* XEHPSDV only */	\
1534 	GEN_FW_RANGE(0x14200, 0x143ff, FORCEWAKE_MEDIA_VDBOX2), /* XEHPSDV only */	\
1535 	GEN_FW_RANGE(0x14400, 0x145ff, FORCEWAKE_MEDIA_VDBOX4), /* XEHPSDV only */	\
1536 	GEN_FW_RANGE(0x14600, 0x147ff, FORCEWAKE_MEDIA_VDBOX6), /* XEHPSDV only */	\
1537 	GEN_FW_RANGE(0x14800, 0x14fff, FORCEWAKE_RENDER),			\
1538 	GEN_FW_RANGE(0x15000, 0x16dff, FORCEWAKE_GT), /*			\
1539 		0x15000 - 0x15fff: gt (DG2 only)				\
1540 		0x16000 - 0x16dff: reserved */					\
1541 	GEN_FW_RANGE(0x16e00, 0x1ffff, FORCEWAKE_RENDER),			\
1542 	GEN_FW_RANGE(0x20000, 0x21fff, FORCEWAKE_MEDIA_VDBOX0), /*		\
1543 		0x20000 - 0x20fff: VD0 (XEHPSDV only)				\
1544 		0x21000 - 0x21fff: reserved */					\
1545 	GEN_FW_RANGE(0x22000, 0x23fff, FORCEWAKE_GT),				\
1546 	GEN_FW_RANGE(0x24000, 0x2417f, 0), /*					\
1547 		0x24000 - 0x2407f: always on					\
1548 		0x24080 - 0x2417f: reserved */					\
1549 	GEN_FW_RANGE(0x24180, 0x249ff, FORCEWAKE_GT), /*			\
1550 		0x24180 - 0x241ff: gt						\
1551 		0x24200 - 0x249ff: reserved */					\
1552 	GEN_FW_RANGE(0x24a00, 0x251ff, FORCEWAKE_RENDER), /*			\
1553 		0x24a00 - 0x24a7f: render					\
1554 		0x24a80 - 0x251ff: reserved */					\
1555 	GEN_FW_RANGE(0x25200, 0x25fff, FORCEWAKE_GT), /*			\
1556 		0x25200 - 0x252ff: gt						\
1557 		0x25300 - 0x25fff: reserved */					\
1558 	GEN_FW_RANGE(0x26000, 0x2ffff, FORCEWAKE_RENDER), /*			\
1559 		0x26000 - 0x27fff: render					\
1560 		0x28000 - 0x29fff: reserved					\
1561 		0x2a000 - 0x2ffff: undocumented */				\
1562 	GEN_FW_RANGE(0x30000, 0x3ffff, FORCEWAKE_GT),				\
1563 	GEN_FW_RANGE(0x40000, 0x1bffff, 0),					\
1564 	GEN_FW_RANGE(0x1c0000, 0x1c3fff, FORCEWAKE_MEDIA_VDBOX0), /*		\
1565 		0x1c0000 - 0x1c2bff: VD0					\
1566 		0x1c2c00 - 0x1c2cff: reserved					\
1567 		0x1c2d00 - 0x1c2dff: VD0					\
1568 		0x1c2e00 - 0x1c3eff: VD0 (DG2 only)				\
1569 		0x1c3f00 - 0x1c3fff: VD0 */					\
1570 	GEN_FW_RANGE(0x1c4000, 0x1c7fff, FORCEWAKE_MEDIA_VDBOX1), /*		\
1571 		0x1c4000 - 0x1c6bff: VD1					\
1572 		0x1c6c00 - 0x1c6cff: reserved					\
1573 		0x1c6d00 - 0x1c6dff: VD1					\
1574 		0x1c6e00 - 0x1c7fff: reserved */				\
1575 	GEN_FW_RANGE(0x1c8000, 0x1cbfff, FORCEWAKE_MEDIA_VEBOX0), /*		\
1576 		0x1c8000 - 0x1ca0ff: VE0					\
1577 		0x1ca100 - 0x1cbfff: reserved */				\
1578 	GEN_FW_RANGE(0x1cc000, 0x1ccfff, FORCEWAKE_MEDIA_VDBOX0),		\
1579 	GEN_FW_RANGE(0x1cd000, 0x1cdfff, FORCEWAKE_MEDIA_VDBOX2),		\
1580 	GEN_FW_RANGE(0x1ce000, 0x1cefff, FORCEWAKE_MEDIA_VDBOX4),		\
1581 	GEN_FW_RANGE(0x1cf000, 0x1cffff, FORCEWAKE_MEDIA_VDBOX6),		\
1582 	GEN_FW_RANGE(0x1d0000, 0x1d3fff, FORCEWAKE_MEDIA_VDBOX2), /*		\
1583 		0x1d0000 - 0x1d2bff: VD2					\
1584 		0x1d2c00 - 0x1d2cff: reserved					\
1585 		0x1d2d00 - 0x1d2dff: VD2					\
1586 		0x1d2e00 - 0x1d3dff: VD2 (DG2 only)				\
1587 		0x1d3e00 - 0x1d3eff: reserved					\
1588 		0x1d3f00 - 0x1d3fff: VD2 */					\
1589 	GEN_FW_RANGE(0x1d4000, 0x1d7fff, FORCEWAKE_MEDIA_VDBOX3), /*		\
1590 		0x1d4000 - 0x1d6bff: VD3					\
1591 		0x1d6c00 - 0x1d6cff: reserved					\
1592 		0x1d6d00 - 0x1d6dff: VD3					\
1593 		0x1d6e00 - 0x1d7fff: reserved */				\
1594 	GEN_FW_RANGE(0x1d8000, 0x1dffff, FORCEWAKE_MEDIA_VEBOX1), /*		\
1595 		0x1d8000 - 0x1da0ff: VE1					\
1596 		0x1da100 - 0x1dffff: reserved */				\
1597 	GEN_FW_RANGE(0x1e0000, 0x1e3fff, FORCEWAKE_MEDIA_VDBOX4), /*		\
1598 		0x1e0000 - 0x1e2bff: VD4					\
1599 		0x1e2c00 - 0x1e2cff: reserved					\
1600 		0x1e2d00 - 0x1e2dff: VD4					\
1601 		0x1e2e00 - 0x1e3eff: reserved					\
1602 		0x1e3f00 - 0x1e3fff: VD4 */					\
1603 	GEN_FW_RANGE(0x1e4000, 0x1e7fff, FORCEWAKE_MEDIA_VDBOX5), /*		\
1604 		0x1e4000 - 0x1e6bff: VD5					\
1605 		0x1e6c00 - 0x1e6cff: reserved					\
1606 		0x1e6d00 - 0x1e6dff: VD5					\
1607 		0x1e6e00 - 0x1e7fff: reserved */				\
1608 	GEN_FW_RANGE(0x1e8000, 0x1effff, FORCEWAKE_MEDIA_VEBOX2), /*		\
1609 		0x1e8000 - 0x1ea0ff: VE2					\
1610 		0x1ea100 - 0x1effff: reserved */				\
1611 	GEN_FW_RANGE(0x1f0000, 0x1f3fff, FORCEWAKE_MEDIA_VDBOX6), /*		\
1612 		0x1f0000 - 0x1f2bff: VD6					\
1613 		0x1f2c00 - 0x1f2cff: reserved					\
1614 		0x1f2d00 - 0x1f2dff: VD6					\
1615 		0x1f2e00 - 0x1f3eff: reserved					\
1616 		0x1f3f00 - 0x1f3fff: VD6 */					\
1617 	GEN_FW_RANGE(0x1f4000, 0x1f7fff, FORCEWAKE_MEDIA_VDBOX7), /*		\
1618 		0x1f4000 - 0x1f6bff: VD7					\
1619 		0x1f6c00 - 0x1f6cff: reserved					\
1620 		0x1f6d00 - 0x1f6dff: VD7					\
1621 		0x1f6e00 - 0x1f7fff: reserved */				\
1622 	GEN_FW_RANGE(0x1f8000, 0x1fa0ff, FORCEWAKE_MEDIA_VEBOX3),
1623 
1624 static const struct intel_forcewake_range __xehp_fw_ranges[] = {
1625 	XEHP_FWRANGES(FORCEWAKE_GT)
1626 };
1627 
1628 static const struct intel_forcewake_range __dg2_fw_ranges[] = {
1629 	XEHP_FWRANGES(FORCEWAKE_RENDER)
1630 };
1631 
1632 static const struct intel_forcewake_range __pvc_fw_ranges[] = {
1633 	GEN_FW_RANGE(0x0, 0xaff, 0),
1634 	GEN_FW_RANGE(0xb00, 0xbff, FORCEWAKE_GT),
1635 	GEN_FW_RANGE(0xc00, 0xfff, 0),
1636 	GEN_FW_RANGE(0x1000, 0x1fff, FORCEWAKE_GT),
1637 	GEN_FW_RANGE(0x2000, 0x26ff, FORCEWAKE_RENDER),
1638 	GEN_FW_RANGE(0x2700, 0x2fff, FORCEWAKE_GT),
1639 	GEN_FW_RANGE(0x3000, 0x3fff, FORCEWAKE_RENDER),
1640 	GEN_FW_RANGE(0x4000, 0x813f, FORCEWAKE_GT), /*
1641 		0x4000 - 0x4aff: gt
1642 		0x4b00 - 0x4fff: reserved
1643 		0x5000 - 0x51ff: gt
1644 		0x5200 - 0x52ff: reserved
1645 		0x5300 - 0x53ff: gt
1646 		0x5400 - 0x7fff: reserved
1647 		0x8000 - 0x813f: gt */
1648 	GEN_FW_RANGE(0x8140, 0x817f, FORCEWAKE_RENDER),
1649 	GEN_FW_RANGE(0x8180, 0x81ff, 0),
1650 	GEN_FW_RANGE(0x8200, 0x94cf, FORCEWAKE_GT), /*
1651 		0x8200 - 0x82ff: gt
1652 		0x8300 - 0x84ff: reserved
1653 		0x8500 - 0x887f: gt
1654 		0x8880 - 0x8a7f: reserved
1655 		0x8a80 - 0x8aff: gt
1656 		0x8b00 - 0x8fff: reserved
1657 		0x9000 - 0x947f: gt
1658 		0x9480 - 0x94cf: reserved */
1659 	GEN_FW_RANGE(0x94d0, 0x955f, FORCEWAKE_RENDER),
1660 	GEN_FW_RANGE(0x9560, 0x967f, 0), /*
1661 		0x9560 - 0x95ff: always on
1662 		0x9600 - 0x967f: reserved */
1663 	GEN_FW_RANGE(0x9680, 0x97ff, FORCEWAKE_RENDER), /*
1664 		0x9680 - 0x96ff: render
1665 		0x9700 - 0x97ff: reserved */
1666 	GEN_FW_RANGE(0x9800, 0xcfff, FORCEWAKE_GT), /*
1667 		0x9800 - 0xb4ff: gt
1668 		0xb500 - 0xbfff: reserved
1669 		0xc000 - 0xcfff: gt */
1670 	GEN_FW_RANGE(0xd000, 0xd3ff, 0),
1671 	GEN_FW_RANGE(0xd400, 0xdbff, FORCEWAKE_GT),
1672 	GEN_FW_RANGE(0xdc00, 0xdcff, FORCEWAKE_RENDER),
1673 	GEN_FW_RANGE(0xdd00, 0xde7f, FORCEWAKE_GT), /*
1674 		0xdd00 - 0xddff: gt
1675 		0xde00 - 0xde7f: reserved */
1676 	GEN_FW_RANGE(0xde80, 0xe8ff, FORCEWAKE_RENDER), /*
1677 		0xde80 - 0xdeff: render
1678 		0xdf00 - 0xe1ff: reserved
1679 		0xe200 - 0xe7ff: render
1680 		0xe800 - 0xe8ff: reserved */
1681 	GEN_FW_RANGE(0xe900, 0x11fff, FORCEWAKE_GT), /*
1682 		 0xe900 -  0xe9ff: gt
1683 		 0xea00 -  0xebff: reserved
1684 		 0xec00 -  0xffff: gt
1685 		0x10000 - 0x11fff: reserved */
1686 	GEN_FW_RANGE(0x12000, 0x12fff, 0), /*
1687 		0x12000 - 0x127ff: always on
1688 		0x12800 - 0x12fff: reserved */
1689 	GEN_FW_RANGE(0x13000, 0x19fff, FORCEWAKE_GT), /*
1690 		0x13000 - 0x135ff: gt
1691 		0x13600 - 0x147ff: reserved
1692 		0x14800 - 0x153ff: gt
1693 		0x15400 - 0x19fff: reserved */
1694 	GEN_FW_RANGE(0x1a000, 0x21fff, FORCEWAKE_RENDER), /*
1695 		0x1a000 - 0x1ffff: render
1696 		0x20000 - 0x21fff: reserved */
1697 	GEN_FW_RANGE(0x22000, 0x23fff, FORCEWAKE_GT),
1698 	GEN_FW_RANGE(0x24000, 0x2417f, 0), /*
1699 		24000 - 0x2407f: always on
1700 		24080 - 0x2417f: reserved */
1701 	GEN_FW_RANGE(0x24180, 0x25fff, FORCEWAKE_GT), /*
1702 		0x24180 - 0x241ff: gt
1703 		0x24200 - 0x251ff: reserved
1704 		0x25200 - 0x252ff: gt
1705 		0x25300 - 0x25fff: reserved */
1706 	GEN_FW_RANGE(0x26000, 0x2ffff, FORCEWAKE_RENDER), /*
1707 		0x26000 - 0x27fff: render
1708 		0x28000 - 0x2ffff: reserved */
1709 	GEN_FW_RANGE(0x30000, 0x3ffff, FORCEWAKE_GT),
1710 	GEN_FW_RANGE(0x40000, 0x1bffff, 0),
1711 	GEN_FW_RANGE(0x1c0000, 0x1c3fff, FORCEWAKE_MEDIA_VDBOX0), /*
1712 		0x1c0000 - 0x1c2bff: VD0
1713 		0x1c2c00 - 0x1c2cff: reserved
1714 		0x1c2d00 - 0x1c2dff: VD0
1715 		0x1c2e00 - 0x1c3eff: reserved
1716 		0x1c3f00 - 0x1c3fff: VD0 */
1717 	GEN_FW_RANGE(0x1c4000, 0x1cffff, FORCEWAKE_MEDIA_VDBOX1), /*
1718 		0x1c4000 - 0x1c6aff: VD1
1719 		0x1c6b00 - 0x1c7eff: reserved
1720 		0x1c7f00 - 0x1c7fff: VD1
1721 		0x1c8000 - 0x1cffff: reserved */
1722 	GEN_FW_RANGE(0x1d0000, 0x23ffff, FORCEWAKE_MEDIA_VDBOX2), /*
1723 		0x1d0000 - 0x1d2aff: VD2
1724 		0x1d2b00 - 0x1d3eff: reserved
1725 		0x1d3f00 - 0x1d3fff: VD2
1726 		0x1d4000 - 0x23ffff: reserved */
1727 	GEN_FW_RANGE(0x240000, 0x3dffff, 0),
1728 	GEN_FW_RANGE(0x3e0000, 0x3effff, FORCEWAKE_GT),
1729 };
1730 
1731 static const struct intel_forcewake_range __mtl_fw_ranges[] = {
1732 	GEN_FW_RANGE(0x0, 0xaff, 0),
1733 	GEN_FW_RANGE(0xb00, 0xbff, FORCEWAKE_GT),
1734 	GEN_FW_RANGE(0xc00, 0xfff, 0),
1735 	GEN_FW_RANGE(0x1000, 0x1fff, FORCEWAKE_GT),
1736 	GEN_FW_RANGE(0x2000, 0x26ff, FORCEWAKE_RENDER),
1737 	GEN_FW_RANGE(0x2700, 0x2fff, FORCEWAKE_GT),
1738 	GEN_FW_RANGE(0x3000, 0x3fff, FORCEWAKE_RENDER),
1739 	GEN_FW_RANGE(0x4000, 0x51ff, FORCEWAKE_GT), /*
1740 		0x4000 - 0x48ff: render
1741 		0x4900 - 0x51ff: reserved */
1742 	GEN_FW_RANGE(0x5200, 0x7fff, FORCEWAKE_RENDER), /*
1743 		0x5200 - 0x53ff: render
1744 		0x5400 - 0x54ff: reserved
1745 		0x5500 - 0x7fff: render */
1746 	GEN_FW_RANGE(0x8000, 0x813f, FORCEWAKE_GT),
1747 	GEN_FW_RANGE(0x8140, 0x817f, FORCEWAKE_RENDER), /*
1748 		0x8140 - 0x815f: render
1749 		0x8160 - 0x817f: reserved */
1750 	GEN_FW_RANGE(0x8180, 0x81ff, 0),
1751 	GEN_FW_RANGE(0x8200, 0x94cf, FORCEWAKE_GT), /*
1752 		0x8200 - 0x87ff: gt
1753 		0x8800 - 0x8dff: reserved
1754 		0x8e00 - 0x8f7f: gt
1755 		0x8f80 - 0x8fff: reserved
1756 		0x9000 - 0x947f: gt
1757 		0x9480 - 0x94cf: reserved */
1758 	GEN_FW_RANGE(0x94d0, 0x955f, FORCEWAKE_RENDER),
1759 	GEN_FW_RANGE(0x9560, 0x967f, 0), /*
1760 		0x9560 - 0x95ff: always on
1761 		0x9600 - 0x967f: reserved */
1762 	GEN_FW_RANGE(0x9680, 0x97ff, FORCEWAKE_RENDER), /*
1763 		0x9680 - 0x96ff: render
1764 		0x9700 - 0x97ff: reserved */
1765 	GEN_FW_RANGE(0x9800, 0xcfff, FORCEWAKE_GT), /*
1766 		0x9800 - 0xb4ff: gt
1767 		0xb500 - 0xbfff: reserved
1768 		0xc000 - 0xcfff: gt */
1769 	GEN_FW_RANGE(0xd000, 0xd7ff, 0), /*
1770 		0xd000 - 0xd3ff: always on
1771 		0xd400 - 0xd7ff: reserved */
1772 	GEN_FW_RANGE(0xd800, 0xd87f, FORCEWAKE_RENDER),
1773 	GEN_FW_RANGE(0xd880, 0xdbff, FORCEWAKE_GT),
1774 	GEN_FW_RANGE(0xdc00, 0xdcff, FORCEWAKE_RENDER),
1775 	GEN_FW_RANGE(0xdd00, 0xde7f, FORCEWAKE_GT), /*
1776 		0xdd00 - 0xddff: gt
1777 		0xde00 - 0xde7f: reserved */
1778 	GEN_FW_RANGE(0xde80, 0xe8ff, FORCEWAKE_RENDER), /*
1779 		0xde80 - 0xdfff: render
1780 		0xe000 - 0xe0ff: reserved
1781 		0xe100 - 0xe8ff: render */
1782 	GEN_FW_RANGE(0xe900, 0xe9ff, FORCEWAKE_GT),
1783 	GEN_FW_RANGE(0xea00, 0x147ff, 0), /*
1784 		 0xea00 - 0x11fff: reserved
1785 		0x12000 - 0x127ff: always on
1786 		0x12800 - 0x147ff: reserved */
1787 	GEN_FW_RANGE(0x14800, 0x19fff, FORCEWAKE_GT), /*
1788 		0x14800 - 0x153ff: gt
1789 		0x15400 - 0x19fff: reserved */
1790 	GEN_FW_RANGE(0x1a000, 0x21fff, FORCEWAKE_RENDER), /*
1791 		0x1a000 - 0x1bfff: render
1792 		0x1c000 - 0x21fff: reserved */
1793 	GEN_FW_RANGE(0x22000, 0x23fff, FORCEWAKE_GT),
1794 	GEN_FW_RANGE(0x24000, 0x2ffff, 0), /*
1795 		0x24000 - 0x2407f: always on
1796 		0x24080 - 0x2ffff: reserved */
1797 	GEN_FW_RANGE(0x30000, 0x3ffff, FORCEWAKE_GT)
1798 };
1799 
1800 /*
1801  * Note that the register ranges here are the final offsets after
1802  * translation of the GSI block to the 0x380000 offset.
1803  *
1804  * NOTE:  There are a couple MCR ranges near the bottom of this table
1805  * that need to power up either VD0 or VD2 depending on which replicated
1806  * instance of the register we're trying to access.  Our forcewake logic
1807  * at the moment doesn't have a good way to take steering into consideration,
1808  * and the driver doesn't even access any registers in those ranges today,
1809  * so for now we just mark those ranges as FORCEWAKE_ALL.  That will ensure
1810  * proper operation if we do start using the ranges in the future, and we
1811  * can determine at that time whether it's worth adding extra complexity to
1812  * the forcewake handling to take steering into consideration.
1813  */
1814 static const struct intel_forcewake_range __xelpmp_fw_ranges[] = {
1815 	GEN_FW_RANGE(0x0, 0x115fff, 0), /* render GT range */
1816 	GEN_FW_RANGE(0x116000, 0x11ffff, FORCEWAKE_GSC), /*
1817 		0x116000 - 0x117fff: gsc
1818 		0x118000 - 0x119fff: reserved
1819 		0x11a000 - 0x11efff: gsc
1820 		0x11f000 - 0x11ffff: reserved */
1821 	GEN_FW_RANGE(0x120000, 0x1bffff, 0), /* non-GT range */
1822 	GEN_FW_RANGE(0x1c0000, 0x1c7fff, FORCEWAKE_MEDIA_VDBOX0), /*
1823 		0x1c0000 - 0x1c3dff: VD0
1824 		0x1c3e00 - 0x1c3eff: reserved
1825 		0x1c3f00 - 0x1c3fff: VD0
1826 		0x1c4000 - 0x1c7fff: reserved */
1827 	GEN_FW_RANGE(0x1c8000, 0x1cbfff, FORCEWAKE_MEDIA_VEBOX0), /*
1828 		0x1c8000 - 0x1ca0ff: VE0
1829 		0x1ca100 - 0x1cbfff: reserved */
1830 	GEN_FW_RANGE(0x1cc000, 0x1cffff, FORCEWAKE_MEDIA_VDBOX0), /*
1831 		0x1cc000 - 0x1cdfff: VD0
1832 		0x1ce000 - 0x1cffff: reserved */
1833 	GEN_FW_RANGE(0x1d0000, 0x1d7fff, FORCEWAKE_MEDIA_VDBOX2), /*
1834 		0x1d0000 - 0x1d3dff: VD2
1835 		0x1d3e00 - 0x1d3eff: reserved
1836 		0x1d4000 - 0x1d7fff: VD2 */
1837 	GEN_FW_RANGE(0x1d8000, 0x1da0ff, FORCEWAKE_MEDIA_VEBOX1),
1838 	GEN_FW_RANGE(0x1da100, 0x380aff, 0), /*
1839 		0x1da100 - 0x23ffff: reserved
1840 		0x240000 - 0x37ffff: non-GT range
1841 		0x380000 - 0x380aff: reserved */
1842 	GEN_FW_RANGE(0x380b00, 0x380bff, FORCEWAKE_GT),
1843 	GEN_FW_RANGE(0x380c00, 0x380fff, 0),
1844 	GEN_FW_RANGE(0x381000, 0x38817f, FORCEWAKE_GT), /*
1845 		0x381000 - 0x381fff: gt
1846 		0x382000 - 0x383fff: reserved
1847 		0x384000 - 0x384aff: gt
1848 		0x384b00 - 0x3851ff: reserved
1849 		0x385200 - 0x3871ff: gt
1850 		0x387200 - 0x387fff: reserved
1851 		0x388000 - 0x38813f: gt
1852 		0x388140 - 0x38817f: reserved */
1853 	GEN_FW_RANGE(0x388180, 0x3882ff, 0), /*
1854 		0x388180 - 0x3881ff: always on
1855 		0x388200 - 0x3882ff: reserved */
1856 	GEN_FW_RANGE(0x388300, 0x38955f, FORCEWAKE_GT), /*
1857 		0x388300 - 0x38887f: gt
1858 		0x388880 - 0x388fff: reserved
1859 		0x389000 - 0x38947f: gt
1860 		0x389480 - 0x38955f: reserved */
1861 	GEN_FW_RANGE(0x389560, 0x389fff, 0), /*
1862 		0x389560 - 0x3895ff: always on
1863 		0x389600 - 0x389fff: reserved */
1864 	GEN_FW_RANGE(0x38a000, 0x38cfff, FORCEWAKE_GT), /*
1865 		0x38a000 - 0x38afff: gt
1866 		0x38b000 - 0x38bfff: reserved
1867 		0x38c000 - 0x38cfff: gt */
1868 	GEN_FW_RANGE(0x38d000, 0x38d11f, 0),
1869 	GEN_FW_RANGE(0x38d120, 0x391fff, FORCEWAKE_GT), /*
1870 		0x38d120 - 0x38dfff: gt
1871 		0x38e000 - 0x38efff: reserved
1872 		0x38f000 - 0x38ffff: gt
1873 		0x389000 - 0x391fff: reserved */
1874 	GEN_FW_RANGE(0x392000, 0x392fff, 0), /*
1875 		0x392000 - 0x3927ff: always on
1876 		0x392800 - 0x292fff: reserved */
1877 	GEN_FW_RANGE(0x393000, 0x3931ff, FORCEWAKE_GT),
1878 	GEN_FW_RANGE(0x393200, 0x39323f, FORCEWAKE_ALL), /* instance-based, see note above */
1879 	GEN_FW_RANGE(0x393240, 0x3933ff, FORCEWAKE_GT),
1880 	GEN_FW_RANGE(0x393400, 0x3934ff, FORCEWAKE_ALL), /* instance-based, see note above */
1881 	GEN_FW_RANGE(0x393500, 0x393c7f, 0), /*
1882 		0x393500 - 0x393bff: reserved
1883 		0x393c00 - 0x393c7f: always on */
1884 	GEN_FW_RANGE(0x393c80, 0x393dff, FORCEWAKE_GT),
1885 };
1886 
1887 static void
1888 ilk_dummy_write(struct intel_uncore *uncore)
1889 {
1890 	/* WaIssueDummyWriteToWakeupFromRC6:ilk Issue a dummy write to wake up
1891 	 * the chip from rc6 before touching it for real. MI_MODE is masked,
1892 	 * hence harmless to write 0 into. */
1893 	__raw_uncore_write32(uncore, RING_MI_MODE(RENDER_RING_BASE), 0);
1894 }
1895 
1896 static void
1897 __unclaimed_reg_debug(struct intel_uncore *uncore,
1898 		      const i915_reg_t reg,
1899 		      const bool read)
1900 {
1901 	if (drm_WARN(&uncore->i915->drm,
1902 		     check_for_unclaimed_mmio(uncore),
1903 		     "Unclaimed %s register 0x%x\n",
1904 		     read ? "read from" : "write to",
1905 		     i915_mmio_reg_offset(reg)))
1906 		/* Only report the first N failures */
1907 		uncore->i915->params.mmio_debug--;
1908 }
1909 
1910 static void
1911 __unclaimed_previous_reg_debug(struct intel_uncore *uncore,
1912 			       const i915_reg_t reg,
1913 			       const bool read)
1914 {
1915 	if (check_for_unclaimed_mmio(uncore))
1916 		drm_dbg(&uncore->i915->drm,
1917 			"Unclaimed access detected before %s register 0x%x\n",
1918 			read ? "read from" : "write to",
1919 			i915_mmio_reg_offset(reg));
1920 }
1921 
1922 static inline void
1923 unclaimed_reg_debug(struct intel_uncore *uncore,
1924 		    const i915_reg_t reg,
1925 		    const bool read,
1926 		    const bool before)
1927 {
1928 	if (likely(!uncore->i915->params.mmio_debug) || !uncore->debug)
1929 		return;
1930 
1931 	/* interrupts are disabled and re-enabled around uncore->lock usage */
1932 	lockdep_assert_held(&uncore->lock);
1933 
1934 	if (before) {
1935 		spin_lock(&uncore->debug->lock);
1936 		__unclaimed_previous_reg_debug(uncore, reg, read);
1937 	} else {
1938 		__unclaimed_reg_debug(uncore, reg, read);
1939 		spin_unlock(&uncore->debug->lock);
1940 	}
1941 }
1942 
1943 #define __vgpu_read(x) \
1944 static u##x \
1945 vgpu_read##x(struct intel_uncore *uncore, i915_reg_t reg, bool trace) { \
1946 	u##x val = __raw_uncore_read##x(uncore, reg); \
1947 	trace_i915_reg_rw(false, reg, val, sizeof(val), trace); \
1948 	return val; \
1949 }
1950 __vgpu_read(8)
1951 __vgpu_read(16)
1952 __vgpu_read(32)
1953 __vgpu_read(64)
1954 
1955 #define GEN2_READ_HEADER(x) \
1956 	u##x val = 0; \
1957 	assert_rpm_wakelock_held(uncore->rpm);
1958 
1959 #define GEN2_READ_FOOTER \
1960 	trace_i915_reg_rw(false, reg, val, sizeof(val), trace); \
1961 	return val
1962 
1963 #define __gen2_read(x) \
1964 static u##x \
1965 gen2_read##x(struct intel_uncore *uncore, i915_reg_t reg, bool trace) { \
1966 	GEN2_READ_HEADER(x); \
1967 	val = __raw_uncore_read##x(uncore, reg); \
1968 	GEN2_READ_FOOTER; \
1969 }
1970 
1971 #define __gen5_read(x) \
1972 static u##x \
1973 gen5_read##x(struct intel_uncore *uncore, i915_reg_t reg, bool trace) { \
1974 	GEN2_READ_HEADER(x); \
1975 	ilk_dummy_write(uncore); \
1976 	val = __raw_uncore_read##x(uncore, reg); \
1977 	GEN2_READ_FOOTER; \
1978 }
1979 
1980 __gen5_read(8)
1981 __gen5_read(16)
1982 __gen5_read(32)
1983 __gen5_read(64)
1984 __gen2_read(8)
1985 __gen2_read(16)
1986 __gen2_read(32)
1987 __gen2_read(64)
1988 
1989 #undef __gen5_read
1990 #undef __gen2_read
1991 
1992 #undef GEN2_READ_FOOTER
1993 #undef GEN2_READ_HEADER
1994 
1995 #define GEN6_READ_HEADER(x) \
1996 	u32 offset = i915_mmio_reg_offset(reg); \
1997 	unsigned long irqflags; \
1998 	u##x val = 0; \
1999 	assert_rpm_wakelock_held(uncore->rpm); \
2000 	spin_lock_irqsave(&uncore->lock, irqflags); \
2001 	unclaimed_reg_debug(uncore, reg, true, true)
2002 
2003 #define GEN6_READ_FOOTER \
2004 	unclaimed_reg_debug(uncore, reg, true, false); \
2005 	spin_unlock_irqrestore(&uncore->lock, irqflags); \
2006 	trace_i915_reg_rw(false, reg, val, sizeof(val), trace); \
2007 	return val
2008 
2009 static noinline void ___force_wake_auto(struct intel_uncore *uncore,
2010 					enum forcewake_domains fw_domains)
2011 {
2012 	struct intel_uncore_forcewake_domain *domain;
2013 	unsigned int tmp;
2014 
2015 	GEM_BUG_ON(fw_domains & ~uncore->fw_domains);
2016 
2017 	for_each_fw_domain_masked(domain, fw_domains, uncore, tmp)
2018 		fw_domain_arm_timer(domain);
2019 
2020 	fw_domains_get(uncore, fw_domains);
2021 }
2022 
2023 static inline void __force_wake_auto(struct intel_uncore *uncore,
2024 				     enum forcewake_domains fw_domains)
2025 {
2026 	GEM_BUG_ON(!fw_domains);
2027 
2028 	/* Turn on all requested but inactive supported forcewake domains. */
2029 	fw_domains &= uncore->fw_domains;
2030 	fw_domains &= ~uncore->fw_domains_active;
2031 
2032 	if (fw_domains)
2033 		___force_wake_auto(uncore, fw_domains);
2034 }
2035 
2036 #define __gen_fwtable_read(x) \
2037 static u##x \
2038 fwtable_read##x(struct intel_uncore *uncore, i915_reg_t reg, bool trace) \
2039 { \
2040 	enum forcewake_domains fw_engine; \
2041 	GEN6_READ_HEADER(x); \
2042 	fw_engine = __fwtable_reg_read_fw_domains(uncore, offset); \
2043 	if (fw_engine) \
2044 		__force_wake_auto(uncore, fw_engine); \
2045 	val = __raw_uncore_read##x(uncore, reg); \
2046 	GEN6_READ_FOOTER; \
2047 }
2048 
2049 static enum forcewake_domains
2050 fwtable_reg_read_fw_domains(struct intel_uncore *uncore, i915_reg_t reg) {
2051 	return __fwtable_reg_read_fw_domains(uncore, i915_mmio_reg_offset(reg));
2052 }
2053 
2054 __gen_fwtable_read(8)
2055 __gen_fwtable_read(16)
2056 __gen_fwtable_read(32)
2057 __gen_fwtable_read(64)
2058 
2059 #undef __gen_fwtable_read
2060 #undef GEN6_READ_FOOTER
2061 #undef GEN6_READ_HEADER
2062 
2063 #define GEN2_WRITE_HEADER \
2064 	trace_i915_reg_rw(true, reg, val, sizeof(val), trace); \
2065 	assert_rpm_wakelock_held(uncore->rpm); \
2066 
2067 #define GEN2_WRITE_FOOTER
2068 
2069 #define __gen2_write(x) \
2070 static void \
2071 gen2_write##x(struct intel_uncore *uncore, i915_reg_t reg, u##x val, bool trace) { \
2072 	GEN2_WRITE_HEADER; \
2073 	__raw_uncore_write##x(uncore, reg, val); \
2074 	GEN2_WRITE_FOOTER; \
2075 }
2076 
2077 #define __gen5_write(x) \
2078 static void \
2079 gen5_write##x(struct intel_uncore *uncore, i915_reg_t reg, u##x val, bool trace) { \
2080 	GEN2_WRITE_HEADER; \
2081 	ilk_dummy_write(uncore); \
2082 	__raw_uncore_write##x(uncore, reg, val); \
2083 	GEN2_WRITE_FOOTER; \
2084 }
2085 
2086 __gen5_write(8)
2087 __gen5_write(16)
2088 __gen5_write(32)
2089 __gen2_write(8)
2090 __gen2_write(16)
2091 __gen2_write(32)
2092 
2093 #undef __gen5_write
2094 #undef __gen2_write
2095 
2096 #undef GEN2_WRITE_FOOTER
2097 #undef GEN2_WRITE_HEADER
2098 
2099 #define GEN6_WRITE_HEADER \
2100 	u32 offset = i915_mmio_reg_offset(reg); \
2101 	unsigned long irqflags; \
2102 	trace_i915_reg_rw(true, reg, val, sizeof(val), trace); \
2103 	assert_rpm_wakelock_held(uncore->rpm); \
2104 	spin_lock_irqsave(&uncore->lock, irqflags); \
2105 	unclaimed_reg_debug(uncore, reg, false, true)
2106 
2107 #define GEN6_WRITE_FOOTER \
2108 	unclaimed_reg_debug(uncore, reg, false, false); \
2109 	spin_unlock_irqrestore(&uncore->lock, irqflags)
2110 
2111 #define __gen6_write(x) \
2112 static void \
2113 gen6_write##x(struct intel_uncore *uncore, i915_reg_t reg, u##x val, bool trace) { \
2114 	GEN6_WRITE_HEADER; \
2115 	if (NEEDS_FORCE_WAKE(offset)) \
2116 		__gen6_gt_wait_for_fifo(uncore); \
2117 	__raw_uncore_write##x(uncore, reg, val); \
2118 	GEN6_WRITE_FOOTER; \
2119 }
2120 __gen6_write(8)
2121 __gen6_write(16)
2122 __gen6_write(32)
2123 
2124 #define __gen_fwtable_write(x) \
2125 static void \
2126 fwtable_write##x(struct intel_uncore *uncore, i915_reg_t reg, u##x val, bool trace) { \
2127 	enum forcewake_domains fw_engine; \
2128 	GEN6_WRITE_HEADER; \
2129 	fw_engine = __fwtable_reg_write_fw_domains(uncore, offset); \
2130 	if (fw_engine) \
2131 		__force_wake_auto(uncore, fw_engine); \
2132 	__raw_uncore_write##x(uncore, reg, val); \
2133 	GEN6_WRITE_FOOTER; \
2134 }
2135 
2136 static enum forcewake_domains
2137 fwtable_reg_write_fw_domains(struct intel_uncore *uncore, i915_reg_t reg)
2138 {
2139 	return __fwtable_reg_write_fw_domains(uncore, i915_mmio_reg_offset(reg));
2140 }
2141 
2142 __gen_fwtable_write(8)
2143 __gen_fwtable_write(16)
2144 __gen_fwtable_write(32)
2145 
2146 #undef __gen_fwtable_write
2147 #undef GEN6_WRITE_FOOTER
2148 #undef GEN6_WRITE_HEADER
2149 
2150 #define __vgpu_write(x) \
2151 static void \
2152 vgpu_write##x(struct intel_uncore *uncore, i915_reg_t reg, u##x val, bool trace) { \
2153 	trace_i915_reg_rw(true, reg, val, sizeof(val), trace); \
2154 	__raw_uncore_write##x(uncore, reg, val); \
2155 }
2156 __vgpu_write(8)
2157 __vgpu_write(16)
2158 __vgpu_write(32)
2159 
2160 #define ASSIGN_RAW_WRITE_MMIO_VFUNCS(uncore, x) \
2161 do { \
2162 	(uncore)->funcs.mmio_writeb = x##_write8; \
2163 	(uncore)->funcs.mmio_writew = x##_write16; \
2164 	(uncore)->funcs.mmio_writel = x##_write32; \
2165 } while (0)
2166 
2167 #define ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, x) \
2168 do { \
2169 	(uncore)->funcs.mmio_readb = x##_read8; \
2170 	(uncore)->funcs.mmio_readw = x##_read16; \
2171 	(uncore)->funcs.mmio_readl = x##_read32; \
2172 	(uncore)->funcs.mmio_readq = x##_read64; \
2173 } while (0)
2174 
2175 #define ASSIGN_WRITE_MMIO_VFUNCS(uncore, x) \
2176 do { \
2177 	ASSIGN_RAW_WRITE_MMIO_VFUNCS((uncore), x); \
2178 	(uncore)->funcs.write_fw_domains = x##_reg_write_fw_domains; \
2179 } while (0)
2180 
2181 #define ASSIGN_READ_MMIO_VFUNCS(uncore, x) \
2182 do { \
2183 	ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, x); \
2184 	(uncore)->funcs.read_fw_domains = x##_reg_read_fw_domains; \
2185 } while (0)
2186 
2187 static int __fw_domain_init(struct intel_uncore *uncore,
2188 			    enum forcewake_domain_id domain_id,
2189 			    i915_reg_t reg_set,
2190 			    i915_reg_t reg_ack)
2191 {
2192 	struct intel_uncore_forcewake_domain *d;
2193 
2194 	GEM_BUG_ON(domain_id >= FW_DOMAIN_ID_COUNT);
2195 	GEM_BUG_ON(uncore->fw_domain[domain_id]);
2196 
2197 	if (i915_inject_probe_failure(uncore->i915))
2198 		return -ENOMEM;
2199 
2200 	d = kzalloc(sizeof(*d), GFP_KERNEL);
2201 	if (!d)
2202 		return -ENOMEM;
2203 
2204 	drm_WARN_ON(&uncore->i915->drm, !i915_mmio_reg_valid(reg_set));
2205 	drm_WARN_ON(&uncore->i915->drm, !i915_mmio_reg_valid(reg_ack));
2206 
2207 	d->uncore = uncore;
2208 	d->wake_count = 0;
2209 	d->reg_set = uncore->regs + i915_mmio_reg_offset(reg_set) + uncore->gsi_offset;
2210 	d->reg_ack = uncore->regs + i915_mmio_reg_offset(reg_ack) + uncore->gsi_offset;
2211 
2212 	d->id = domain_id;
2213 
2214 	BUILD_BUG_ON(FORCEWAKE_RENDER != (1 << FW_DOMAIN_ID_RENDER));
2215 	BUILD_BUG_ON(FORCEWAKE_GT != (1 << FW_DOMAIN_ID_GT));
2216 	BUILD_BUG_ON(FORCEWAKE_MEDIA != (1 << FW_DOMAIN_ID_MEDIA));
2217 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VDBOX0 != (1 << FW_DOMAIN_ID_MEDIA_VDBOX0));
2218 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VDBOX1 != (1 << FW_DOMAIN_ID_MEDIA_VDBOX1));
2219 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VDBOX2 != (1 << FW_DOMAIN_ID_MEDIA_VDBOX2));
2220 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VDBOX3 != (1 << FW_DOMAIN_ID_MEDIA_VDBOX3));
2221 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VDBOX4 != (1 << FW_DOMAIN_ID_MEDIA_VDBOX4));
2222 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VDBOX5 != (1 << FW_DOMAIN_ID_MEDIA_VDBOX5));
2223 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VDBOX6 != (1 << FW_DOMAIN_ID_MEDIA_VDBOX6));
2224 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VDBOX7 != (1 << FW_DOMAIN_ID_MEDIA_VDBOX7));
2225 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VEBOX0 != (1 << FW_DOMAIN_ID_MEDIA_VEBOX0));
2226 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VEBOX1 != (1 << FW_DOMAIN_ID_MEDIA_VEBOX1));
2227 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VEBOX2 != (1 << FW_DOMAIN_ID_MEDIA_VEBOX2));
2228 	BUILD_BUG_ON(FORCEWAKE_MEDIA_VEBOX3 != (1 << FW_DOMAIN_ID_MEDIA_VEBOX3));
2229 	BUILD_BUG_ON(FORCEWAKE_GSC != (1 << FW_DOMAIN_ID_GSC));
2230 
2231 	d->mask = BIT(domain_id);
2232 
2233 	hrtimer_init(&d->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
2234 	d->timer.function = intel_uncore_fw_release_timer;
2235 
2236 	uncore->fw_domains |= BIT(domain_id);
2237 
2238 	fw_domain_reset(d);
2239 
2240 	uncore->fw_domain[domain_id] = d;
2241 
2242 	return 0;
2243 }
2244 
2245 static void fw_domain_fini(struct intel_uncore *uncore,
2246 			   enum forcewake_domain_id domain_id)
2247 {
2248 	struct intel_uncore_forcewake_domain *d;
2249 
2250 	GEM_BUG_ON(domain_id >= FW_DOMAIN_ID_COUNT);
2251 
2252 	d = fetch_and_zero(&uncore->fw_domain[domain_id]);
2253 	if (!d)
2254 		return;
2255 
2256 	uncore->fw_domains &= ~BIT(domain_id);
2257 	drm_WARN_ON(&uncore->i915->drm, d->wake_count);
2258 	drm_WARN_ON(&uncore->i915->drm, hrtimer_cancel(&d->timer));
2259 	kfree(d);
2260 }
2261 
2262 static void intel_uncore_fw_domains_fini(struct intel_uncore *uncore)
2263 {
2264 	struct intel_uncore_forcewake_domain *d;
2265 	int tmp;
2266 
2267 	for_each_fw_domain(d, uncore, tmp)
2268 		fw_domain_fini(uncore, d->id);
2269 }
2270 
2271 static const struct intel_uncore_fw_get uncore_get_fallback = {
2272 	.force_wake_get = fw_domains_get_with_fallback
2273 };
2274 
2275 static const struct intel_uncore_fw_get uncore_get_normal = {
2276 	.force_wake_get = fw_domains_get_normal,
2277 };
2278 
2279 static const struct intel_uncore_fw_get uncore_get_thread_status = {
2280 	.force_wake_get = fw_domains_get_with_thread_status
2281 };
2282 
2283 static int intel_uncore_fw_domains_init(struct intel_uncore *uncore)
2284 {
2285 	struct drm_i915_private *i915 = uncore->i915;
2286 	int ret = 0;
2287 
2288 	GEM_BUG_ON(!intel_uncore_has_forcewake(uncore));
2289 
2290 #define fw_domain_init(uncore__, id__, set__, ack__) \
2291 	(ret ?: (ret = __fw_domain_init((uncore__), (id__), (set__), (ack__))))
2292 
2293 	if (GRAPHICS_VER(i915) >= 11) {
2294 		intel_engine_mask_t emask;
2295 		int i;
2296 
2297 		/* we'll prune the domains of missing engines later */
2298 		emask = uncore->gt->info.engine_mask;
2299 
2300 		uncore->fw_get_funcs = &uncore_get_fallback;
2301 		if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70))
2302 			fw_domain_init(uncore, FW_DOMAIN_ID_GT,
2303 				       FORCEWAKE_GT_GEN9,
2304 				       FORCEWAKE_ACK_GT_MTL);
2305 		else
2306 			fw_domain_init(uncore, FW_DOMAIN_ID_GT,
2307 				       FORCEWAKE_GT_GEN9,
2308 				       FORCEWAKE_ACK_GT_GEN9);
2309 
2310 		if (RCS_MASK(uncore->gt) || CCS_MASK(uncore->gt))
2311 			fw_domain_init(uncore, FW_DOMAIN_ID_RENDER,
2312 				       FORCEWAKE_RENDER_GEN9,
2313 				       FORCEWAKE_ACK_RENDER_GEN9);
2314 
2315 		for (i = 0; i < I915_MAX_VCS; i++) {
2316 			if (!__HAS_ENGINE(emask, _VCS(i)))
2317 				continue;
2318 
2319 			fw_domain_init(uncore, FW_DOMAIN_ID_MEDIA_VDBOX0 + i,
2320 				       FORCEWAKE_MEDIA_VDBOX_GEN11(i),
2321 				       FORCEWAKE_ACK_MEDIA_VDBOX_GEN11(i));
2322 		}
2323 		for (i = 0; i < I915_MAX_VECS; i++) {
2324 			if (!__HAS_ENGINE(emask, _VECS(i)))
2325 				continue;
2326 
2327 			fw_domain_init(uncore, FW_DOMAIN_ID_MEDIA_VEBOX0 + i,
2328 				       FORCEWAKE_MEDIA_VEBOX_GEN11(i),
2329 				       FORCEWAKE_ACK_MEDIA_VEBOX_GEN11(i));
2330 		}
2331 
2332 		if (uncore->gt->type == GT_MEDIA)
2333 			fw_domain_init(uncore, FW_DOMAIN_ID_GSC,
2334 				       FORCEWAKE_REQ_GSC, FORCEWAKE_ACK_GSC);
2335 	} else if (IS_GRAPHICS_VER(i915, 9, 10)) {
2336 		uncore->fw_get_funcs = &uncore_get_fallback;
2337 		fw_domain_init(uncore, FW_DOMAIN_ID_RENDER,
2338 			       FORCEWAKE_RENDER_GEN9,
2339 			       FORCEWAKE_ACK_RENDER_GEN9);
2340 		fw_domain_init(uncore, FW_DOMAIN_ID_GT,
2341 			       FORCEWAKE_GT_GEN9,
2342 			       FORCEWAKE_ACK_GT_GEN9);
2343 		fw_domain_init(uncore, FW_DOMAIN_ID_MEDIA,
2344 			       FORCEWAKE_MEDIA_GEN9, FORCEWAKE_ACK_MEDIA_GEN9);
2345 	} else if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915)) {
2346 		uncore->fw_get_funcs = &uncore_get_normal;
2347 		fw_domain_init(uncore, FW_DOMAIN_ID_RENDER,
2348 			       FORCEWAKE_VLV, FORCEWAKE_ACK_VLV);
2349 		fw_domain_init(uncore, FW_DOMAIN_ID_MEDIA,
2350 			       FORCEWAKE_MEDIA_VLV, FORCEWAKE_ACK_MEDIA_VLV);
2351 	} else if (IS_HASWELL(i915) || IS_BROADWELL(i915)) {
2352 		uncore->fw_get_funcs = &uncore_get_thread_status;
2353 		fw_domain_init(uncore, FW_DOMAIN_ID_RENDER,
2354 			       FORCEWAKE_MT, FORCEWAKE_ACK_HSW);
2355 	} else if (IS_IVYBRIDGE(i915)) {
2356 		u32 ecobus;
2357 
2358 		/* IVB configs may use multi-threaded forcewake */
2359 
2360 		/* A small trick here - if the bios hasn't configured
2361 		 * MT forcewake, and if the device is in RC6, then
2362 		 * force_wake_mt_get will not wake the device and the
2363 		 * ECOBUS read will return zero. Which will be
2364 		 * (correctly) interpreted by the test below as MT
2365 		 * forcewake being disabled.
2366 		 */
2367 		uncore->fw_get_funcs = &uncore_get_thread_status;
2368 
2369 		/* We need to init first for ECOBUS access and then
2370 		 * determine later if we want to reinit, in case of MT access is
2371 		 * not working. In this stage we don't know which flavour this
2372 		 * ivb is, so it is better to reset also the gen6 fw registers
2373 		 * before the ecobus check.
2374 		 */
2375 
2376 		__raw_uncore_write32(uncore, FORCEWAKE, 0);
2377 		__raw_posting_read(uncore, ECOBUS);
2378 
2379 		ret = __fw_domain_init(uncore, FW_DOMAIN_ID_RENDER,
2380 				       FORCEWAKE_MT, FORCEWAKE_MT_ACK);
2381 		if (ret)
2382 			goto out;
2383 
2384 		spin_lock_irq(&uncore->lock);
2385 		fw_domains_get_with_thread_status(uncore, FORCEWAKE_RENDER);
2386 		ecobus = __raw_uncore_read32(uncore, ECOBUS);
2387 		fw_domains_put(uncore, FORCEWAKE_RENDER);
2388 		spin_unlock_irq(&uncore->lock);
2389 
2390 		if (!(ecobus & FORCEWAKE_MT_ENABLE)) {
2391 			drm_info(&i915->drm, "No MT forcewake available on Ivybridge, this can result in issues\n");
2392 			drm_info(&i915->drm, "when using vblank-synced partial screen updates.\n");
2393 			fw_domain_fini(uncore, FW_DOMAIN_ID_RENDER);
2394 			fw_domain_init(uncore, FW_DOMAIN_ID_RENDER,
2395 				       FORCEWAKE, FORCEWAKE_ACK);
2396 		}
2397 	} else if (GRAPHICS_VER(i915) == 6) {
2398 		uncore->fw_get_funcs = &uncore_get_thread_status;
2399 		fw_domain_init(uncore, FW_DOMAIN_ID_RENDER,
2400 			       FORCEWAKE, FORCEWAKE_ACK);
2401 	}
2402 
2403 #undef fw_domain_init
2404 
2405 	/* All future platforms are expected to require complex power gating */
2406 	drm_WARN_ON(&i915->drm, !ret && uncore->fw_domains == 0);
2407 
2408 out:
2409 	if (ret)
2410 		intel_uncore_fw_domains_fini(uncore);
2411 
2412 	return ret;
2413 }
2414 
2415 #define ASSIGN_FW_DOMAINS_TABLE(uncore, d) \
2416 { \
2417 	(uncore)->fw_domains_table = \
2418 			(struct intel_forcewake_range *)(d); \
2419 	(uncore)->fw_domains_table_entries = ARRAY_SIZE((d)); \
2420 }
2421 
2422 #define ASSIGN_SHADOW_TABLE(uncore, d) \
2423 { \
2424 	(uncore)->shadowed_reg_table = d; \
2425 	(uncore)->shadowed_reg_table_entries = ARRAY_SIZE((d)); \
2426 }
2427 
2428 static int i915_pmic_bus_access_notifier(struct notifier_block *nb,
2429 					 unsigned long action, void *data)
2430 {
2431 	struct intel_uncore *uncore = container_of(nb,
2432 			struct intel_uncore, pmic_bus_access_nb);
2433 
2434 	switch (action) {
2435 	case MBI_PMIC_BUS_ACCESS_BEGIN:
2436 		/*
2437 		 * forcewake all now to make sure that we don't need to do a
2438 		 * forcewake later which on systems where this notifier gets
2439 		 * called requires the punit to access to the shared pmic i2c
2440 		 * bus, which will be busy after this notification, leading to:
2441 		 * "render: timed out waiting for forcewake ack request."
2442 		 * errors.
2443 		 *
2444 		 * The notifier is unregistered during intel_runtime_suspend(),
2445 		 * so it's ok to access the HW here without holding a RPM
2446 		 * wake reference -> disable wakeref asserts for the time of
2447 		 * the access.
2448 		 */
2449 		disable_rpm_wakeref_asserts(uncore->rpm);
2450 		intel_uncore_forcewake_get(uncore, FORCEWAKE_ALL);
2451 		enable_rpm_wakeref_asserts(uncore->rpm);
2452 		break;
2453 	case MBI_PMIC_BUS_ACCESS_END:
2454 		intel_uncore_forcewake_put(uncore, FORCEWAKE_ALL);
2455 		break;
2456 	}
2457 
2458 	return NOTIFY_OK;
2459 }
2460 
2461 static void uncore_unmap_mmio(struct drm_device *drm, void *regs)
2462 {
2463 	iounmap(regs);
2464 }
2465 
2466 int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
2467 {
2468 	struct drm_i915_private *i915 = uncore->i915;
2469 	int mmio_size;
2470 
2471 	/*
2472 	 * Before gen4, the registers and the GTT are behind different BARs.
2473 	 * However, from gen4 onwards, the registers and the GTT are shared
2474 	 * in the same BAR, so we want to restrict this ioremap from
2475 	 * clobbering the GTT which we want ioremap_wc instead. Fortunately,
2476 	 * the register BAR remains the same size for all the earlier
2477 	 * generations up to Ironlake.
2478 	 * For dgfx chips register range is expanded to 4MB, and this larger
2479 	 * range is also used for integrated gpus beginning with Meteor Lake.
2480 	 */
2481 	if (IS_DGFX(i915) || GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70))
2482 		mmio_size = 4 * 1024 * 1024;
2483 	else if (GRAPHICS_VER(i915) >= 5)
2484 		mmio_size = 2 * 1024 * 1024;
2485 	else
2486 		mmio_size = 512 * 1024;
2487 
2488 	uncore->regs = ioremap(phys_addr, mmio_size);
2489 	if (uncore->regs == NULL) {
2490 		drm_err(&i915->drm, "failed to map registers\n");
2491 		return -EIO;
2492 	}
2493 
2494 	return drmm_add_action_or_reset(&i915->drm, uncore_unmap_mmio, uncore->regs);
2495 }
2496 
2497 void intel_uncore_init_early(struct intel_uncore *uncore,
2498 			     struct intel_gt *gt)
2499 {
2500 	spin_lock_init(&uncore->lock);
2501 	uncore->i915 = gt->i915;
2502 	uncore->gt = gt;
2503 	uncore->rpm = &gt->i915->runtime_pm;
2504 }
2505 
2506 static void uncore_raw_init(struct intel_uncore *uncore)
2507 {
2508 	GEM_BUG_ON(intel_uncore_has_forcewake(uncore));
2509 
2510 	if (intel_vgpu_active(uncore->i915)) {
2511 		ASSIGN_RAW_WRITE_MMIO_VFUNCS(uncore, vgpu);
2512 		ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, vgpu);
2513 	} else if (GRAPHICS_VER(uncore->i915) == 5) {
2514 		ASSIGN_RAW_WRITE_MMIO_VFUNCS(uncore, gen5);
2515 		ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, gen5);
2516 	} else {
2517 		ASSIGN_RAW_WRITE_MMIO_VFUNCS(uncore, gen2);
2518 		ASSIGN_RAW_READ_MMIO_VFUNCS(uncore, gen2);
2519 	}
2520 }
2521 
2522 static int uncore_media_forcewake_init(struct intel_uncore *uncore)
2523 {
2524 	struct drm_i915_private *i915 = uncore->i915;
2525 
2526 	if (MEDIA_VER(i915) >= 13) {
2527 		ASSIGN_FW_DOMAINS_TABLE(uncore, __xelpmp_fw_ranges);
2528 		ASSIGN_SHADOW_TABLE(uncore, xelpmp_shadowed_regs);
2529 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
2530 	} else {
2531 		MISSING_CASE(MEDIA_VER(i915));
2532 		return -ENODEV;
2533 	}
2534 
2535 	return 0;
2536 }
2537 
2538 static int uncore_forcewake_init(struct intel_uncore *uncore)
2539 {
2540 	struct drm_i915_private *i915 = uncore->i915;
2541 	int ret;
2542 
2543 	GEM_BUG_ON(!intel_uncore_has_forcewake(uncore));
2544 
2545 	ret = intel_uncore_fw_domains_init(uncore);
2546 	if (ret)
2547 		return ret;
2548 	forcewake_early_sanitize(uncore, 0);
2549 
2550 	ASSIGN_READ_MMIO_VFUNCS(uncore, fwtable);
2551 
2552 	if (uncore->gt->type == GT_MEDIA)
2553 		return uncore_media_forcewake_init(uncore);
2554 
2555 	if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70)) {
2556 		ASSIGN_FW_DOMAINS_TABLE(uncore, __mtl_fw_ranges);
2557 		ASSIGN_SHADOW_TABLE(uncore, mtl_shadowed_regs);
2558 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
2559 	} else if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 60)) {
2560 		ASSIGN_FW_DOMAINS_TABLE(uncore, __pvc_fw_ranges);
2561 		ASSIGN_SHADOW_TABLE(uncore, pvc_shadowed_regs);
2562 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
2563 	} else if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 55)) {
2564 		ASSIGN_FW_DOMAINS_TABLE(uncore, __dg2_fw_ranges);
2565 		ASSIGN_SHADOW_TABLE(uncore, dg2_shadowed_regs);
2566 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
2567 	} else if (GRAPHICS_VER_FULL(i915) >= IP_VER(12, 50)) {
2568 		ASSIGN_FW_DOMAINS_TABLE(uncore, __xehp_fw_ranges);
2569 		ASSIGN_SHADOW_TABLE(uncore, gen12_shadowed_regs);
2570 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
2571 	} else if (GRAPHICS_VER(i915) >= 12) {
2572 		ASSIGN_FW_DOMAINS_TABLE(uncore, __gen12_fw_ranges);
2573 		ASSIGN_SHADOW_TABLE(uncore, gen12_shadowed_regs);
2574 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
2575 	} else if (GRAPHICS_VER(i915) == 11) {
2576 		ASSIGN_FW_DOMAINS_TABLE(uncore, __gen11_fw_ranges);
2577 		ASSIGN_SHADOW_TABLE(uncore, gen11_shadowed_regs);
2578 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
2579 	} else if (IS_GRAPHICS_VER(i915, 9, 10)) {
2580 		ASSIGN_FW_DOMAINS_TABLE(uncore, __gen9_fw_ranges);
2581 		ASSIGN_SHADOW_TABLE(uncore, gen8_shadowed_regs);
2582 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
2583 	} else if (IS_CHERRYVIEW(i915)) {
2584 		ASSIGN_FW_DOMAINS_TABLE(uncore, __chv_fw_ranges);
2585 		ASSIGN_SHADOW_TABLE(uncore, gen8_shadowed_regs);
2586 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
2587 	} else if (GRAPHICS_VER(i915) == 8) {
2588 		ASSIGN_FW_DOMAINS_TABLE(uncore, __gen6_fw_ranges);
2589 		ASSIGN_SHADOW_TABLE(uncore, gen8_shadowed_regs);
2590 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, fwtable);
2591 	} else if (IS_VALLEYVIEW(i915)) {
2592 		ASSIGN_FW_DOMAINS_TABLE(uncore, __vlv_fw_ranges);
2593 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen6);
2594 	} else if (IS_GRAPHICS_VER(i915, 6, 7)) {
2595 		ASSIGN_FW_DOMAINS_TABLE(uncore, __gen6_fw_ranges);
2596 		ASSIGN_WRITE_MMIO_VFUNCS(uncore, gen6);
2597 	}
2598 
2599 	uncore->pmic_bus_access_nb.notifier_call = i915_pmic_bus_access_notifier;
2600 	iosf_mbi_register_pmic_bus_access_notifier(&uncore->pmic_bus_access_nb);
2601 
2602 	return 0;
2603 }
2604 
2605 int intel_uncore_init_mmio(struct intel_uncore *uncore)
2606 {
2607 	struct drm_i915_private *i915 = uncore->i915;
2608 	int ret;
2609 
2610 	/*
2611 	 * The boot firmware initializes local memory and assesses its health.
2612 	 * If memory training fails, the punit will have been instructed to
2613 	 * keep the GT powered down; we won't be able to communicate with it
2614 	 * and we should not continue with driver initialization.
2615 	 */
2616 	if (IS_DGFX(i915) &&
2617 	    !(__raw_uncore_read32(uncore, GU_CNTL) & LMEM_INIT)) {
2618 		drm_err(&i915->drm, "LMEM not initialized by firmware\n");
2619 		return -ENODEV;
2620 	}
2621 
2622 	if (GRAPHICS_VER(i915) > 5 && !intel_vgpu_active(i915))
2623 		uncore->flags |= UNCORE_HAS_FORCEWAKE;
2624 
2625 	if (!intel_uncore_has_forcewake(uncore)) {
2626 		uncore_raw_init(uncore);
2627 	} else {
2628 		ret = uncore_forcewake_init(uncore);
2629 		if (ret)
2630 			return ret;
2631 	}
2632 
2633 	/* make sure fw funcs are set if and only if we have fw*/
2634 	GEM_BUG_ON(intel_uncore_has_forcewake(uncore) != !!uncore->fw_get_funcs);
2635 	GEM_BUG_ON(intel_uncore_has_forcewake(uncore) != !!uncore->funcs.read_fw_domains);
2636 	GEM_BUG_ON(intel_uncore_has_forcewake(uncore) != !!uncore->funcs.write_fw_domains);
2637 
2638 	if (HAS_FPGA_DBG_UNCLAIMED(i915))
2639 		uncore->flags |= UNCORE_HAS_FPGA_DBG_UNCLAIMED;
2640 
2641 	if (IS_VALLEYVIEW(i915) || IS_CHERRYVIEW(i915))
2642 		uncore->flags |= UNCORE_HAS_DBG_UNCLAIMED;
2643 
2644 	if (IS_GRAPHICS_VER(i915, 6, 7))
2645 		uncore->flags |= UNCORE_HAS_FIFO;
2646 
2647 	/* clear out unclaimed reg detection bit */
2648 	if (intel_uncore_unclaimed_mmio(uncore))
2649 		drm_dbg(&i915->drm, "unclaimed mmio detected on uncore init, clearing\n");
2650 
2651 	return 0;
2652 }
2653 
2654 /*
2655  * We might have detected that some engines are fused off after we initialized
2656  * the forcewake domains. Prune them, to make sure they only reference existing
2657  * engines.
2658  */
2659 void intel_uncore_prune_engine_fw_domains(struct intel_uncore *uncore,
2660 					  struct intel_gt *gt)
2661 {
2662 	enum forcewake_domains fw_domains = uncore->fw_domains;
2663 	enum forcewake_domain_id domain_id;
2664 	int i;
2665 
2666 	if (!intel_uncore_has_forcewake(uncore) || GRAPHICS_VER(uncore->i915) < 11)
2667 		return;
2668 
2669 	for (i = 0; i < I915_MAX_VCS; i++) {
2670 		domain_id = FW_DOMAIN_ID_MEDIA_VDBOX0 + i;
2671 
2672 		if (HAS_ENGINE(gt, _VCS(i)))
2673 			continue;
2674 
2675 		/*
2676 		 * Starting with XeHP, the power well for an even-numbered
2677 		 * VDBOX is also used for shared units within the
2678 		 * media slice such as SFC.  So even if the engine
2679 		 * itself is fused off, we still need to initialize
2680 		 * the forcewake domain if any of the other engines
2681 		 * in the same media slice are present.
2682 		 */
2683 		if (GRAPHICS_VER_FULL(uncore->i915) >= IP_VER(12, 50) && i % 2 == 0) {
2684 			if ((i + 1 < I915_MAX_VCS) && HAS_ENGINE(gt, _VCS(i + 1)))
2685 				continue;
2686 
2687 			if (HAS_ENGINE(gt, _VECS(i / 2)))
2688 				continue;
2689 		}
2690 
2691 		if (fw_domains & BIT(domain_id))
2692 			fw_domain_fini(uncore, domain_id);
2693 	}
2694 
2695 	for (i = 0; i < I915_MAX_VECS; i++) {
2696 		domain_id = FW_DOMAIN_ID_MEDIA_VEBOX0 + i;
2697 
2698 		if (HAS_ENGINE(gt, _VECS(i)))
2699 			continue;
2700 
2701 		if (fw_domains & BIT(domain_id))
2702 			fw_domain_fini(uncore, domain_id);
2703 	}
2704 }
2705 
2706 /* Called via drm-managed action */
2707 void intel_uncore_fini_mmio(struct drm_device *dev, void *data)
2708 {
2709 	struct intel_uncore *uncore = data;
2710 
2711 	if (intel_uncore_has_forcewake(uncore)) {
2712 		iosf_mbi_punit_acquire();
2713 		iosf_mbi_unregister_pmic_bus_access_notifier_unlocked(
2714 			&uncore->pmic_bus_access_nb);
2715 		intel_uncore_forcewake_reset(uncore);
2716 		intel_uncore_fw_domains_fini(uncore);
2717 		iosf_mbi_punit_release();
2718 	}
2719 }
2720 
2721 /**
2722  * __intel_wait_for_register_fw - wait until register matches expected state
2723  * @uncore: the struct intel_uncore
2724  * @reg: the register to read
2725  * @mask: mask to apply to register value
2726  * @value: expected value
2727  * @fast_timeout_us: fast timeout in microsecond for atomic/tight wait
2728  * @slow_timeout_ms: slow timeout in millisecond
2729  * @out_value: optional placeholder to hold registry value
2730  *
2731  * This routine waits until the target register @reg contains the expected
2732  * @value after applying the @mask, i.e. it waits until ::
2733  *
2734  *     (intel_uncore_read_fw(uncore, reg) & mask) == value
2735  *
2736  * Otherwise, the wait will timeout after @slow_timeout_ms milliseconds.
2737  * For atomic context @slow_timeout_ms must be zero and @fast_timeout_us
2738  * must be not larger than 20,0000 microseconds.
2739  *
2740  * Note that this routine assumes the caller holds forcewake asserted, it is
2741  * not suitable for very long waits. See intel_wait_for_register() if you
2742  * wish to wait without holding forcewake for the duration (i.e. you expect
2743  * the wait to be slow).
2744  *
2745  * Return: 0 if the register matches the desired condition, or -ETIMEDOUT.
2746  */
2747 int __intel_wait_for_register_fw(struct intel_uncore *uncore,
2748 				 i915_reg_t reg,
2749 				 u32 mask,
2750 				 u32 value,
2751 				 unsigned int fast_timeout_us,
2752 				 unsigned int slow_timeout_ms,
2753 				 u32 *out_value)
2754 {
2755 	u32 reg_value = 0;
2756 #define done (((reg_value = intel_uncore_read_fw(uncore, reg)) & mask) == value)
2757 	int ret;
2758 
2759 	/* Catch any overuse of this function */
2760 	might_sleep_if(slow_timeout_ms);
2761 	GEM_BUG_ON(fast_timeout_us > 20000);
2762 	GEM_BUG_ON(!fast_timeout_us && !slow_timeout_ms);
2763 
2764 	ret = -ETIMEDOUT;
2765 	if (fast_timeout_us && fast_timeout_us <= 20000)
2766 		ret = _wait_for_atomic(done, fast_timeout_us, 0);
2767 	if (ret && slow_timeout_ms)
2768 		ret = wait_for(done, slow_timeout_ms);
2769 
2770 	if (out_value)
2771 		*out_value = reg_value;
2772 
2773 	return ret;
2774 #undef done
2775 }
2776 
2777 /**
2778  * __intel_wait_for_register - wait until register matches expected state
2779  * @uncore: the struct intel_uncore
2780  * @reg: the register to read
2781  * @mask: mask to apply to register value
2782  * @value: expected value
2783  * @fast_timeout_us: fast timeout in microsecond for atomic/tight wait
2784  * @slow_timeout_ms: slow timeout in millisecond
2785  * @out_value: optional placeholder to hold registry value
2786  *
2787  * This routine waits until the target register @reg contains the expected
2788  * @value after applying the @mask, i.e. it waits until ::
2789  *
2790  *     (intel_uncore_read(uncore, reg) & mask) == value
2791  *
2792  * Otherwise, the wait will timeout after @timeout_ms milliseconds.
2793  *
2794  * Return: 0 if the register matches the desired condition, or -ETIMEDOUT.
2795  */
2796 int __intel_wait_for_register(struct intel_uncore *uncore,
2797 			      i915_reg_t reg,
2798 			      u32 mask,
2799 			      u32 value,
2800 			      unsigned int fast_timeout_us,
2801 			      unsigned int slow_timeout_ms,
2802 			      u32 *out_value)
2803 {
2804 	unsigned fw =
2805 		intel_uncore_forcewake_for_reg(uncore, reg, FW_REG_READ);
2806 	u32 reg_value;
2807 	int ret;
2808 
2809 	might_sleep_if(slow_timeout_ms);
2810 
2811 	spin_lock_irq(&uncore->lock);
2812 	intel_uncore_forcewake_get__locked(uncore, fw);
2813 
2814 	ret = __intel_wait_for_register_fw(uncore,
2815 					   reg, mask, value,
2816 					   fast_timeout_us, 0, &reg_value);
2817 
2818 	intel_uncore_forcewake_put__locked(uncore, fw);
2819 	spin_unlock_irq(&uncore->lock);
2820 
2821 	if (ret && slow_timeout_ms)
2822 		ret = __wait_for(reg_value = intel_uncore_read_notrace(uncore,
2823 								       reg),
2824 				 (reg_value & mask) == value,
2825 				 slow_timeout_ms * 1000, 10, 1000);
2826 
2827 	/* just trace the final value */
2828 	trace_i915_reg_rw(false, reg, reg_value, sizeof(reg_value), true);
2829 
2830 	if (out_value)
2831 		*out_value = reg_value;
2832 
2833 	return ret;
2834 }
2835 
2836 bool intel_uncore_unclaimed_mmio(struct intel_uncore *uncore)
2837 {
2838 	bool ret;
2839 
2840 	if (!uncore->debug)
2841 		return false;
2842 
2843 	spin_lock_irq(&uncore->debug->lock);
2844 	ret = check_for_unclaimed_mmio(uncore);
2845 	spin_unlock_irq(&uncore->debug->lock);
2846 
2847 	return ret;
2848 }
2849 
2850 bool
2851 intel_uncore_arm_unclaimed_mmio_detection(struct intel_uncore *uncore)
2852 {
2853 	bool ret = false;
2854 
2855 	if (drm_WARN_ON(&uncore->i915->drm, !uncore->debug))
2856 		return false;
2857 
2858 	spin_lock_irq(&uncore->debug->lock);
2859 
2860 	if (unlikely(uncore->debug->unclaimed_mmio_check <= 0))
2861 		goto out;
2862 
2863 	if (unlikely(check_for_unclaimed_mmio(uncore))) {
2864 		if (!uncore->i915->params.mmio_debug) {
2865 			drm_dbg(&uncore->i915->drm,
2866 				"Unclaimed register detected, "
2867 				"enabling oneshot unclaimed register reporting. "
2868 				"Please use i915.mmio_debug=N for more information.\n");
2869 			uncore->i915->params.mmio_debug++;
2870 		}
2871 		uncore->debug->unclaimed_mmio_check--;
2872 		ret = true;
2873 	}
2874 
2875 out:
2876 	spin_unlock_irq(&uncore->debug->lock);
2877 
2878 	return ret;
2879 }
2880 
2881 /**
2882  * intel_uncore_forcewake_for_reg - which forcewake domains are needed to access
2883  * 				    a register
2884  * @uncore: pointer to struct intel_uncore
2885  * @reg: register in question
2886  * @op: operation bitmask of FW_REG_READ and/or FW_REG_WRITE
2887  *
2888  * Returns a set of forcewake domains required to be taken with for example
2889  * intel_uncore_forcewake_get for the specified register to be accessible in the
2890  * specified mode (read, write or read/write) with raw mmio accessors.
2891  *
2892  * NOTE: On Gen6 and Gen7 write forcewake domain (FORCEWAKE_RENDER) requires the
2893  * callers to do FIFO management on their own or risk losing writes.
2894  */
2895 enum forcewake_domains
2896 intel_uncore_forcewake_for_reg(struct intel_uncore *uncore,
2897 			       i915_reg_t reg, unsigned int op)
2898 {
2899 	enum forcewake_domains fw_domains = 0;
2900 
2901 	drm_WARN_ON(&uncore->i915->drm, !op);
2902 
2903 	if (!intel_uncore_has_forcewake(uncore))
2904 		return 0;
2905 
2906 	if (op & FW_REG_READ)
2907 		fw_domains = uncore->funcs.read_fw_domains(uncore, reg);
2908 
2909 	if (op & FW_REG_WRITE)
2910 		fw_domains |= uncore->funcs.write_fw_domains(uncore, reg);
2911 
2912 	drm_WARN_ON(&uncore->i915->drm, fw_domains & ~uncore->fw_domains);
2913 
2914 	return fw_domains;
2915 }
2916 
2917 #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
2918 #include "selftests/mock_uncore.c"
2919 #include "selftests/intel_uncore.c"
2920 #endif
2921