xref: /openbmc/linux/drivers/gpu/drm/i915/i915_drv.h (revision d59ce1ff)
1 /* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
2  */
3 /*
4  *
5  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6  * All Rights Reserved.
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a
9  * copy of this software and associated documentation files (the
10  * "Software"), to deal in the Software without restriction, including
11  * without limitation the rights to use, copy, modify, merge, publish,
12  * distribute, sub license, and/or sell copies of the Software, and to
13  * permit persons to whom the Software is furnished to do so, subject to
14  * the following conditions:
15  *
16  * The above copyright notice and this permission notice (including the
17  * next paragraph) shall be included in all copies or substantial portions
18  * of the Software.
19  *
20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
24  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27  *
28  */
29 
30 #ifndef _I915_DRV_H_
31 #define _I915_DRV_H_
32 
33 #include <uapi/drm/i915_drm.h>
34 
35 #include <linux/pm_qos.h>
36 
37 #include <drm/ttm/ttm_device.h>
38 
39 #include "display/intel_display_limits.h"
40 #include "display/intel_display_core.h"
41 
42 #include "gem/i915_gem_context_types.h"
43 #include "gem/i915_gem_shrinker.h"
44 #include "gem/i915_gem_stolen.h"
45 
46 #include "gt/intel_engine.h"
47 #include "gt/intel_gt_types.h"
48 #include "gt/intel_region_lmem.h"
49 #include "gt/intel_workarounds.h"
50 #include "gt/uc/intel_uc.h"
51 
52 #include "soc/intel_pch.h"
53 
54 #include "i915_drm_client.h"
55 #include "i915_gem.h"
56 #include "i915_gpu_error.h"
57 #include "i915_params.h"
58 #include "i915_perf_types.h"
59 #include "i915_scheduler.h"
60 #include "i915_utils.h"
61 #include "intel_device_info.h"
62 #include "intel_memory_region.h"
63 #include "intel_runtime_pm.h"
64 #include "intel_step.h"
65 #include "intel_uncore.h"
66 
67 struct drm_i915_clock_gating_funcs;
68 struct vlv_s0ix_state;
69 struct intel_pxp;
70 
71 #define GEM_QUIRK_PIN_SWIZZLED_PAGES	BIT(0)
72 
73 /* Data Stolen Memory (DSM) aka "i915 stolen memory" */
74 struct i915_dsm {
75 	/*
76 	 * The start and end of DSM which we can optionally use to create GEM
77 	 * objects backed by stolen memory.
78 	 *
79 	 * Note that usable_size tells us exactly how much of this we are
80 	 * actually allowed to use, given that some portion of it is in fact
81 	 * reserved for use by hardware functions.
82 	 */
83 	struct resource stolen;
84 
85 	/*
86 	 * Reserved portion of DSM.
87 	 */
88 	struct resource reserved;
89 
90 	/*
91 	 * Total size minus reserved ranges.
92 	 *
93 	 * DSM is segmented in hardware with different portions offlimits to
94 	 * certain functions.
95 	 *
96 	 * The drm_mm is initialised to the total accessible range, as found
97 	 * from the PCI config. On Broadwell+, this is further restricted to
98 	 * avoid the first page! The upper end of DSM is reserved for hardware
99 	 * functions and similarly removed from the accessible range.
100 	 */
101 	resource_size_t usable_size;
102 };
103 
104 struct i915_suspend_saved_registers {
105 	u32 saveDSPARB;
106 	u32 saveSWF0[16];
107 	u32 saveSWF1[16];
108 	u32 saveSWF3[3];
109 	u16 saveGCDGMBUS;
110 };
111 
112 #define MAX_L3_SLICES 2
113 struct intel_l3_parity {
114 	u32 *remap_info[MAX_L3_SLICES];
115 	struct work_struct error_work;
116 	int which_slice;
117 };
118 
119 struct i915_gem_mm {
120 	/*
121 	 * Shortcut for the stolen region. This points to either
122 	 * INTEL_REGION_STOLEN_SMEM for integrated platforms, or
123 	 * INTEL_REGION_STOLEN_LMEM for discrete, or NULL if the device doesn't
124 	 * support stolen.
125 	 */
126 	struct intel_memory_region *stolen_region;
127 	/** Memory allocator for GTT stolen memory */
128 	struct drm_mm stolen;
129 	/** Protects the usage of the GTT stolen memory allocator. This is
130 	 * always the inner lock when overlapping with struct_mutex. */
131 	struct mutex stolen_lock;
132 
133 	/* Protects bound_list/unbound_list and #drm_i915_gem_object.mm.link */
134 	spinlock_t obj_lock;
135 
136 	/**
137 	 * List of objects which are purgeable.
138 	 */
139 	struct list_head purge_list;
140 
141 	/**
142 	 * List of objects which have allocated pages and are shrinkable.
143 	 */
144 	struct list_head shrink_list;
145 
146 	/**
147 	 * List of objects which are pending destruction.
148 	 */
149 	struct llist_head free_list;
150 	struct work_struct free_work;
151 	/**
152 	 * Count of objects pending destructions. Used to skip needlessly
153 	 * waiting on an RCU barrier if no objects are waiting to be freed.
154 	 */
155 	atomic_t free_count;
156 
157 	/**
158 	 * tmpfs instance used for shmem backed objects
159 	 */
160 	struct vfsmount *gemfs;
161 
162 	struct intel_memory_region *regions[INTEL_REGION_UNKNOWN];
163 
164 	struct notifier_block oom_notifier;
165 	struct notifier_block vmap_notifier;
166 	struct shrinker shrinker;
167 
168 #ifdef CONFIG_MMU_NOTIFIER
169 	/**
170 	 * notifier_lock for mmu notifiers, memory may not be allocated
171 	 * while holding this lock.
172 	 */
173 	rwlock_t notifier_lock;
174 #endif
175 
176 	/* shrinker accounting, also useful for userland debugging */
177 	u64 shrink_memory;
178 	u32 shrink_count;
179 };
180 
181 struct i915_virtual_gpu {
182 	struct mutex lock; /* serialises sending of g2v_notify command pkts */
183 	bool active;
184 	u32 caps;
185 	u32 *initial_mmio;
186 	u8 *initial_cfg_space;
187 	struct list_head entry;
188 };
189 
190 struct i915_selftest_stash {
191 	atomic_t counter;
192 	struct ida mock_region_instances;
193 };
194 
195 struct drm_i915_private {
196 	struct drm_device drm;
197 
198 	struct intel_display display;
199 
200 	/* FIXME: Device release actions should all be moved to drmm_ */
201 	bool do_release;
202 
203 	/* i915 device parameters */
204 	struct i915_params params;
205 
206 	const struct intel_device_info __info; /* Use INTEL_INFO() to access. */
207 	struct intel_runtime_info __runtime; /* Use RUNTIME_INFO() to access. */
208 	struct intel_driver_caps caps;
209 
210 	struct i915_dsm dsm;
211 
212 	struct intel_uncore uncore;
213 	struct intel_uncore_mmio_debug mmio_debug;
214 
215 	struct i915_virtual_gpu vgpu;
216 
217 	struct intel_gvt *gvt;
218 
219 	struct {
220 		struct pci_dev *pdev;
221 		struct resource mch_res;
222 		bool mchbar_need_disable;
223 	} gmch;
224 
225 	struct rb_root uabi_engines;
226 	unsigned int engine_uabi_class_count[I915_LAST_UABI_ENGINE_CLASS + 1];
227 
228 	/* protects the irq masks */
229 	spinlock_t irq_lock;
230 
231 	bool display_irqs_enabled;
232 
233 	/* Sideband mailbox protection */
234 	struct mutex sb_lock;
235 	struct pm_qos_request sb_qos;
236 
237 	/** Cached value of IMR to avoid reads in updating the bitfield */
238 	union {
239 		u32 irq_mask;
240 		u32 de_irq_mask[I915_MAX_PIPES];
241 	};
242 	u32 pipestat_irq_mask[I915_MAX_PIPES];
243 
244 	bool preserve_bios_swizzle;
245 
246 	unsigned int fsb_freq, mem_freq, is_ddr3;
247 	unsigned int skl_preferred_vco_freq;
248 
249 	unsigned int max_dotclk_freq;
250 	unsigned int hpll_freq;
251 	unsigned int czclk_freq;
252 
253 	/**
254 	 * wq - Driver workqueue for GEM.
255 	 *
256 	 * NOTE: Work items scheduled here are not allowed to grab any modeset
257 	 * locks, for otherwise the flushing done in the pageflip code will
258 	 * result in deadlocks.
259 	 */
260 	struct workqueue_struct *wq;
261 
262 	/* pm private clock gating functions */
263 	const struct drm_i915_clock_gating_funcs *clock_gating_funcs;
264 
265 	/* PCH chipset type */
266 	enum intel_pch pch_type;
267 	unsigned short pch_id;
268 
269 	unsigned long gem_quirks;
270 
271 	struct i915_gem_mm mm;
272 
273 	struct intel_l3_parity l3_parity;
274 
275 	/*
276 	 * edram size in MB.
277 	 * Cannot be determined by PCIID. You must always read a register.
278 	 */
279 	u32 edram_size_mb;
280 
281 	struct i915_gpu_error gpu_error;
282 
283 	u32 suspend_count;
284 	struct i915_suspend_saved_registers regfile;
285 	struct vlv_s0ix_state *vlv_s0ix_state;
286 
287 	struct dram_info {
288 		bool wm_lv_0_adjust_needed;
289 		u8 num_channels;
290 		bool symmetric_memory;
291 		enum intel_dram_type {
292 			INTEL_DRAM_UNKNOWN,
293 			INTEL_DRAM_DDR3,
294 			INTEL_DRAM_DDR4,
295 			INTEL_DRAM_LPDDR3,
296 			INTEL_DRAM_LPDDR4,
297 			INTEL_DRAM_DDR5,
298 			INTEL_DRAM_LPDDR5,
299 		} type;
300 		u8 num_qgv_points;
301 		u8 num_psf_gv_points;
302 	} dram_info;
303 
304 	struct intel_runtime_pm runtime_pm;
305 
306 	struct i915_perf perf;
307 
308 	struct i915_hwmon *hwmon;
309 
310 	/* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
311 	struct intel_gt gt0;
312 
313 	/*
314 	 * i915->gt[0] == &i915->gt0
315 	 */
316 #define I915_MAX_GT 4
317 	struct intel_gt *gt[I915_MAX_GT];
318 
319 	struct kobject *sysfs_gt;
320 
321 	/* Quick lookup of media GT (current platforms only have one) */
322 	struct intel_gt *media_gt;
323 
324 	struct {
325 		struct i915_gem_contexts {
326 			spinlock_t lock; /* locks list */
327 			struct list_head list;
328 		} contexts;
329 
330 		/*
331 		 * We replace the local file with a global mappings as the
332 		 * backing storage for the mmap is on the device and not
333 		 * on the struct file, and we do not want to prolong the
334 		 * lifetime of the local fd. To minimise the number of
335 		 * anonymous inodes we create, we use a global singleton to
336 		 * share the global mapping.
337 		 */
338 		struct file *mmap_singleton;
339 	} gem;
340 
341 	struct intel_pxp *pxp;
342 
343 	/* For i915gm/i945gm vblank irq workaround */
344 	u8 vblank_enabled;
345 
346 	bool irq_enabled;
347 
348 	struct i915_pmu pmu;
349 
350 	struct i915_drm_clients clients;
351 
352 	/* The TTM device structure. */
353 	struct ttm_device bdev;
354 
355 	I915_SELFTEST_DECLARE(struct i915_selftest_stash selftest;)
356 
357 	/*
358 	 * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch
359 	 * will be rejected. Instead look for a better place.
360 	 */
361 };
362 
363 static inline struct drm_i915_private *to_i915(const struct drm_device *dev)
364 {
365 	return container_of(dev, struct drm_i915_private, drm);
366 }
367 
368 static inline struct drm_i915_private *kdev_to_i915(struct device *kdev)
369 {
370 	return dev_get_drvdata(kdev);
371 }
372 
373 static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
374 {
375 	return pci_get_drvdata(pdev);
376 }
377 
378 static inline struct intel_gt *to_gt(struct drm_i915_private *i915)
379 {
380 	return &i915->gt0;
381 }
382 
383 /* Simple iterator over all initialised engines */
384 #define for_each_engine(engine__, gt__, id__) \
385 	for ((id__) = 0; \
386 	     (id__) < I915_NUM_ENGINES; \
387 	     (id__)++) \
388 		for_each_if ((engine__) = (gt__)->engine[(id__)])
389 
390 /* Iterator over subset of engines selected by mask */
391 #define for_each_engine_masked(engine__, gt__, mask__, tmp__) \
392 	for ((tmp__) = (mask__) & (gt__)->info.engine_mask; \
393 	     (tmp__) ? \
394 	     ((engine__) = (gt__)->engine[__mask_next_bit(tmp__)]), 1 : \
395 	     0;)
396 
397 #define rb_to_uabi_engine(rb) \
398 	rb_entry_safe(rb, struct intel_engine_cs, uabi_node)
399 
400 #define for_each_uabi_engine(engine__, i915__) \
401 	for ((engine__) = rb_to_uabi_engine(rb_first(&(i915__)->uabi_engines));\
402 	     (engine__); \
403 	     (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
404 
405 #define for_each_uabi_class_engine(engine__, class__, i915__) \
406 	for ((engine__) = intel_engine_lookup_user((i915__), (class__), 0); \
407 	     (engine__) && (engine__)->uabi_class == (class__); \
408 	     (engine__) = rb_to_uabi_engine(rb_next(&(engine__)->uabi_node)))
409 
410 #define INTEL_INFO(i915)	(&(i915)->__info)
411 #define RUNTIME_INFO(i915)	(&(i915)->__runtime)
412 #define DRIVER_CAPS(i915)	(&(i915)->caps)
413 
414 #define INTEL_DEVID(i915)	(RUNTIME_INFO(i915)->device_id)
415 
416 #define IP_VER(ver, rel)		((ver) << 8 | (rel))
417 
418 #define GRAPHICS_VER(i915)		(RUNTIME_INFO(i915)->graphics.ip.ver)
419 #define GRAPHICS_VER_FULL(i915)		IP_VER(RUNTIME_INFO(i915)->graphics.ip.ver, \
420 					       RUNTIME_INFO(i915)->graphics.ip.rel)
421 #define IS_GRAPHICS_VER(i915, from, until) \
422 	(GRAPHICS_VER(i915) >= (from) && GRAPHICS_VER(i915) <= (until))
423 
424 #define MEDIA_VER(i915)			(RUNTIME_INFO(i915)->media.ip.ver)
425 #define MEDIA_VER_FULL(i915)		IP_VER(RUNTIME_INFO(i915)->media.ip.ver, \
426 					       RUNTIME_INFO(i915)->media.ip.rel)
427 #define IS_MEDIA_VER(i915, from, until) \
428 	(MEDIA_VER(i915) >= (from) && MEDIA_VER(i915) <= (until))
429 
430 #define DISPLAY_VER(i915)	(RUNTIME_INFO(i915)->display.ip.ver)
431 #define IS_DISPLAY_VER(i915, from, until) \
432 	(DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until))
433 
434 #define INTEL_REVID(i915)	(to_pci_dev((i915)->drm.dev)->revision)
435 
436 #define INTEL_DISPLAY_STEP(__i915) (RUNTIME_INFO(__i915)->step.display_step)
437 #define INTEL_GRAPHICS_STEP(__i915) (RUNTIME_INFO(__i915)->step.graphics_step)
438 #define INTEL_MEDIA_STEP(__i915) (RUNTIME_INFO(__i915)->step.media_step)
439 #define INTEL_BASEDIE_STEP(__i915) (RUNTIME_INFO(__i915)->step.basedie_step)
440 
441 #define IS_DISPLAY_STEP(__i915, since, until) \
442 	(drm_WARN_ON(&(__i915)->drm, INTEL_DISPLAY_STEP(__i915) == STEP_NONE), \
443 	 INTEL_DISPLAY_STEP(__i915) >= (since) && INTEL_DISPLAY_STEP(__i915) < (until))
444 
445 #define IS_GRAPHICS_STEP(__i915, since, until) \
446 	(drm_WARN_ON(&(__i915)->drm, INTEL_GRAPHICS_STEP(__i915) == STEP_NONE), \
447 	 INTEL_GRAPHICS_STEP(__i915) >= (since) && INTEL_GRAPHICS_STEP(__i915) < (until))
448 
449 #define IS_MEDIA_STEP(__i915, since, until) \
450 	(drm_WARN_ON(&(__i915)->drm, INTEL_MEDIA_STEP(__i915) == STEP_NONE), \
451 	 INTEL_MEDIA_STEP(__i915) >= (since) && INTEL_MEDIA_STEP(__i915) < (until))
452 
453 #define IS_BASEDIE_STEP(__i915, since, until) \
454 	(drm_WARN_ON(&(__i915)->drm, INTEL_BASEDIE_STEP(__i915) == STEP_NONE), \
455 	 INTEL_BASEDIE_STEP(__i915) >= (since) && INTEL_BASEDIE_STEP(__i915) < (until))
456 
457 static __always_inline unsigned int
458 __platform_mask_index(const struct intel_runtime_info *info,
459 		      enum intel_platform p)
460 {
461 	const unsigned int pbits =
462 		BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
463 
464 	/* Expand the platform_mask array if this fails. */
465 	BUILD_BUG_ON(INTEL_MAX_PLATFORMS >
466 		     pbits * ARRAY_SIZE(info->platform_mask));
467 
468 	return p / pbits;
469 }
470 
471 static __always_inline unsigned int
472 __platform_mask_bit(const struct intel_runtime_info *info,
473 		    enum intel_platform p)
474 {
475 	const unsigned int pbits =
476 		BITS_PER_TYPE(info->platform_mask[0]) - INTEL_SUBPLATFORM_BITS;
477 
478 	return p % pbits + INTEL_SUBPLATFORM_BITS;
479 }
480 
481 static inline u32
482 intel_subplatform(const struct intel_runtime_info *info, enum intel_platform p)
483 {
484 	const unsigned int pi = __platform_mask_index(info, p);
485 
486 	return info->platform_mask[pi] & INTEL_SUBPLATFORM_MASK;
487 }
488 
489 static __always_inline bool
490 IS_PLATFORM(const struct drm_i915_private *i915, enum intel_platform p)
491 {
492 	const struct intel_runtime_info *info = RUNTIME_INFO(i915);
493 	const unsigned int pi = __platform_mask_index(info, p);
494 	const unsigned int pb = __platform_mask_bit(info, p);
495 
496 	BUILD_BUG_ON(!__builtin_constant_p(p));
497 
498 	return info->platform_mask[pi] & BIT(pb);
499 }
500 
501 static __always_inline bool
502 IS_SUBPLATFORM(const struct drm_i915_private *i915,
503 	       enum intel_platform p, unsigned int s)
504 {
505 	const struct intel_runtime_info *info = RUNTIME_INFO(i915);
506 	const unsigned int pi = __platform_mask_index(info, p);
507 	const unsigned int pb = __platform_mask_bit(info, p);
508 	const unsigned int msb = BITS_PER_TYPE(info->platform_mask[0]) - 1;
509 	const u32 mask = info->platform_mask[pi];
510 
511 	BUILD_BUG_ON(!__builtin_constant_p(p));
512 	BUILD_BUG_ON(!__builtin_constant_p(s));
513 	BUILD_BUG_ON((s) >= INTEL_SUBPLATFORM_BITS);
514 
515 	/* Shift and test on the MSB position so sign flag can be used. */
516 	return ((mask << (msb - pb)) & (mask << (msb - s))) & BIT(msb);
517 }
518 
519 #define IS_MOBILE(i915)	(INTEL_INFO(i915)->is_mobile)
520 #define IS_DGFX(i915)   (INTEL_INFO(i915)->is_dgfx)
521 
522 #define IS_I830(i915)	IS_PLATFORM(i915, INTEL_I830)
523 #define IS_I845G(i915)	IS_PLATFORM(i915, INTEL_I845G)
524 #define IS_I85X(i915)	IS_PLATFORM(i915, INTEL_I85X)
525 #define IS_I865G(i915)	IS_PLATFORM(i915, INTEL_I865G)
526 #define IS_I915G(i915)	IS_PLATFORM(i915, INTEL_I915G)
527 #define IS_I915GM(i915)	IS_PLATFORM(i915, INTEL_I915GM)
528 #define IS_I945G(i915)	IS_PLATFORM(i915, INTEL_I945G)
529 #define IS_I945GM(i915)	IS_PLATFORM(i915, INTEL_I945GM)
530 #define IS_I965G(i915)	IS_PLATFORM(i915, INTEL_I965G)
531 #define IS_I965GM(i915)	IS_PLATFORM(i915, INTEL_I965GM)
532 #define IS_G45(i915)	IS_PLATFORM(i915, INTEL_G45)
533 #define IS_GM45(i915)	IS_PLATFORM(i915, INTEL_GM45)
534 #define IS_G4X(i915)	(IS_G45(i915) || IS_GM45(i915))
535 #define IS_PINEVIEW(i915)	IS_PLATFORM(i915, INTEL_PINEVIEW)
536 #define IS_G33(i915)	IS_PLATFORM(i915, INTEL_G33)
537 #define IS_IRONLAKE(i915)	IS_PLATFORM(i915, INTEL_IRONLAKE)
538 #define IS_IRONLAKE_M(i915) \
539 	(IS_PLATFORM(i915, INTEL_IRONLAKE) && IS_MOBILE(i915))
540 #define IS_SANDYBRIDGE(i915) IS_PLATFORM(i915, INTEL_SANDYBRIDGE)
541 #define IS_IVYBRIDGE(i915)	IS_PLATFORM(i915, INTEL_IVYBRIDGE)
542 #define IS_IVB_GT1(i915)	(IS_IVYBRIDGE(i915) && \
543 				 INTEL_INFO(i915)->gt == 1)
544 #define IS_VALLEYVIEW(i915)	IS_PLATFORM(i915, INTEL_VALLEYVIEW)
545 #define IS_CHERRYVIEW(i915)	IS_PLATFORM(i915, INTEL_CHERRYVIEW)
546 #define IS_HASWELL(i915)	IS_PLATFORM(i915, INTEL_HASWELL)
547 #define IS_BROADWELL(i915)	IS_PLATFORM(i915, INTEL_BROADWELL)
548 #define IS_SKYLAKE(i915)	IS_PLATFORM(i915, INTEL_SKYLAKE)
549 #define IS_BROXTON(i915)	IS_PLATFORM(i915, INTEL_BROXTON)
550 #define IS_KABYLAKE(i915)	IS_PLATFORM(i915, INTEL_KABYLAKE)
551 #define IS_GEMINILAKE(i915)	IS_PLATFORM(i915, INTEL_GEMINILAKE)
552 #define IS_COFFEELAKE(i915)	IS_PLATFORM(i915, INTEL_COFFEELAKE)
553 #define IS_COMETLAKE(i915)	IS_PLATFORM(i915, INTEL_COMETLAKE)
554 #define IS_ICELAKE(i915)	IS_PLATFORM(i915, INTEL_ICELAKE)
555 #define IS_JSL_EHL(i915)	(IS_PLATFORM(i915, INTEL_JASPERLAKE) || \
556 				IS_PLATFORM(i915, INTEL_ELKHARTLAKE))
557 #define IS_TIGERLAKE(i915)	IS_PLATFORM(i915, INTEL_TIGERLAKE)
558 #define IS_ROCKETLAKE(i915)	IS_PLATFORM(i915, INTEL_ROCKETLAKE)
559 #define IS_DG1(i915)        IS_PLATFORM(i915, INTEL_DG1)
560 #define IS_ALDERLAKE_S(i915) IS_PLATFORM(i915, INTEL_ALDERLAKE_S)
561 #define IS_ALDERLAKE_P(i915) IS_PLATFORM(i915, INTEL_ALDERLAKE_P)
562 #define IS_XEHPSDV(i915) IS_PLATFORM(i915, INTEL_XEHPSDV)
563 #define IS_DG2(i915)	IS_PLATFORM(i915, INTEL_DG2)
564 #define IS_PONTEVECCHIO(i915) IS_PLATFORM(i915, INTEL_PONTEVECCHIO)
565 #define IS_METEORLAKE(i915) IS_PLATFORM(i915, INTEL_METEORLAKE)
566 
567 #define IS_METEORLAKE_M(i915) \
568 	IS_SUBPLATFORM(i915, INTEL_METEORLAKE, INTEL_SUBPLATFORM_M)
569 #define IS_METEORLAKE_P(i915) \
570 	IS_SUBPLATFORM(i915, INTEL_METEORLAKE, INTEL_SUBPLATFORM_P)
571 #define IS_DG2_G10(i915) \
572 	IS_SUBPLATFORM(i915, INTEL_DG2, INTEL_SUBPLATFORM_G10)
573 #define IS_DG2_G11(i915) \
574 	IS_SUBPLATFORM(i915, INTEL_DG2, INTEL_SUBPLATFORM_G11)
575 #define IS_DG2_G12(i915) \
576 	IS_SUBPLATFORM(i915, INTEL_DG2, INTEL_SUBPLATFORM_G12)
577 #define IS_ADLS_RPLS(i915) \
578 	IS_SUBPLATFORM(i915, INTEL_ALDERLAKE_S, INTEL_SUBPLATFORM_RPL)
579 #define IS_ADLP_N(i915) \
580 	IS_SUBPLATFORM(i915, INTEL_ALDERLAKE_P, INTEL_SUBPLATFORM_N)
581 #define IS_ADLP_RPLP(i915) \
582 	IS_SUBPLATFORM(i915, INTEL_ALDERLAKE_P, INTEL_SUBPLATFORM_RPL)
583 #define IS_ADLP_RPLU(i915) \
584 	IS_SUBPLATFORM(i915, INTEL_ALDERLAKE_P, INTEL_SUBPLATFORM_RPLU)
585 #define IS_HSW_EARLY_SDV(i915) (IS_HASWELL(i915) && \
586 				    (INTEL_DEVID(i915) & 0xFF00) == 0x0C00)
587 #define IS_BDW_ULT(i915) \
588 	IS_SUBPLATFORM(i915, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULT)
589 #define IS_BDW_ULX(i915) \
590 	IS_SUBPLATFORM(i915, INTEL_BROADWELL, INTEL_SUBPLATFORM_ULX)
591 #define IS_BDW_GT3(i915)	(IS_BROADWELL(i915) && \
592 				 INTEL_INFO(i915)->gt == 3)
593 #define IS_HSW_ULT(i915) \
594 	IS_SUBPLATFORM(i915, INTEL_HASWELL, INTEL_SUBPLATFORM_ULT)
595 #define IS_HSW_GT3(i915)	(IS_HASWELL(i915) && \
596 				 INTEL_INFO(i915)->gt == 3)
597 #define IS_HSW_GT1(i915)	(IS_HASWELL(i915) && \
598 				 INTEL_INFO(i915)->gt == 1)
599 /* ULX machines are also considered ULT. */
600 #define IS_HSW_ULX(i915) \
601 	IS_SUBPLATFORM(i915, INTEL_HASWELL, INTEL_SUBPLATFORM_ULX)
602 #define IS_SKL_ULT(i915) \
603 	IS_SUBPLATFORM(i915, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULT)
604 #define IS_SKL_ULX(i915) \
605 	IS_SUBPLATFORM(i915, INTEL_SKYLAKE, INTEL_SUBPLATFORM_ULX)
606 #define IS_KBL_ULT(i915) \
607 	IS_SUBPLATFORM(i915, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULT)
608 #define IS_KBL_ULX(i915) \
609 	IS_SUBPLATFORM(i915, INTEL_KABYLAKE, INTEL_SUBPLATFORM_ULX)
610 #define IS_SKL_GT2(i915)	(IS_SKYLAKE(i915) && \
611 				 INTEL_INFO(i915)->gt == 2)
612 #define IS_SKL_GT3(i915)	(IS_SKYLAKE(i915) && \
613 				 INTEL_INFO(i915)->gt == 3)
614 #define IS_SKL_GT4(i915)	(IS_SKYLAKE(i915) && \
615 				 INTEL_INFO(i915)->gt == 4)
616 #define IS_KBL_GT2(i915)	(IS_KABYLAKE(i915) && \
617 				 INTEL_INFO(i915)->gt == 2)
618 #define IS_KBL_GT3(i915)	(IS_KABYLAKE(i915) && \
619 				 INTEL_INFO(i915)->gt == 3)
620 #define IS_CFL_ULT(i915) \
621 	IS_SUBPLATFORM(i915, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULT)
622 #define IS_CFL_ULX(i915) \
623 	IS_SUBPLATFORM(i915, INTEL_COFFEELAKE, INTEL_SUBPLATFORM_ULX)
624 #define IS_CFL_GT2(i915)	(IS_COFFEELAKE(i915) && \
625 				 INTEL_INFO(i915)->gt == 2)
626 #define IS_CFL_GT3(i915)	(IS_COFFEELAKE(i915) && \
627 				 INTEL_INFO(i915)->gt == 3)
628 
629 #define IS_CML_ULT(i915) \
630 	IS_SUBPLATFORM(i915, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULT)
631 #define IS_CML_ULX(i915) \
632 	IS_SUBPLATFORM(i915, INTEL_COMETLAKE, INTEL_SUBPLATFORM_ULX)
633 #define IS_CML_GT2(i915)	(IS_COMETLAKE(i915) && \
634 				 INTEL_INFO(i915)->gt == 2)
635 
636 #define IS_ICL_WITH_PORT_F(i915) \
637 	IS_SUBPLATFORM(i915, INTEL_ICELAKE, INTEL_SUBPLATFORM_PORTF)
638 
639 #define IS_TGL_UY(i915) \
640 	IS_SUBPLATFORM(i915, INTEL_TIGERLAKE, INTEL_SUBPLATFORM_UY)
641 
642 #define IS_SKL_GRAPHICS_STEP(p, since, until) (IS_SKYLAKE(p) && IS_GRAPHICS_STEP(p, since, until))
643 
644 #define IS_KBL_GRAPHICS_STEP(i915, since, until) \
645 	(IS_KABYLAKE(i915) && IS_GRAPHICS_STEP(i915, since, until))
646 #define IS_KBL_DISPLAY_STEP(i915, since, until) \
647 	(IS_KABYLAKE(i915) && IS_DISPLAY_STEP(i915, since, until))
648 
649 #define IS_JSL_EHL_GRAPHICS_STEP(p, since, until) \
650 	(IS_JSL_EHL(p) && IS_GRAPHICS_STEP(p, since, until))
651 #define IS_JSL_EHL_DISPLAY_STEP(p, since, until) \
652 	(IS_JSL_EHL(p) && IS_DISPLAY_STEP(p, since, until))
653 
654 #define IS_TGL_DISPLAY_STEP(__i915, since, until) \
655 	(IS_TIGERLAKE(__i915) && \
656 	 IS_DISPLAY_STEP(__i915, since, until))
657 
658 #define IS_RKL_DISPLAY_STEP(p, since, until) \
659 	(IS_ROCKETLAKE(p) && IS_DISPLAY_STEP(p, since, until))
660 
661 #define IS_ADLS_DISPLAY_STEP(__i915, since, until) \
662 	(IS_ALDERLAKE_S(__i915) && \
663 	 IS_DISPLAY_STEP(__i915, since, until))
664 
665 #define IS_ADLS_GRAPHICS_STEP(__i915, since, until) \
666 	(IS_ALDERLAKE_S(__i915) && \
667 	 IS_GRAPHICS_STEP(__i915, since, until))
668 
669 #define IS_ADLP_DISPLAY_STEP(__i915, since, until) \
670 	(IS_ALDERLAKE_P(__i915) && \
671 	 IS_DISPLAY_STEP(__i915, since, until))
672 
673 #define IS_ADLP_GRAPHICS_STEP(__i915, since, until) \
674 	(IS_ALDERLAKE_P(__i915) && \
675 	 IS_GRAPHICS_STEP(__i915, since, until))
676 
677 #define IS_XEHPSDV_GRAPHICS_STEP(__i915, since, until) \
678 	(IS_XEHPSDV(__i915) && IS_GRAPHICS_STEP(__i915, since, until))
679 
680 #define IS_MTL_GRAPHICS_STEP(__i915, variant, since, until) \
681 	(IS_SUBPLATFORM(__i915, INTEL_METEORLAKE, INTEL_SUBPLATFORM_##variant) && \
682 	 IS_GRAPHICS_STEP(__i915, since, until))
683 
684 #define IS_MTL_DISPLAY_STEP(__i915, since, until) \
685 	(IS_METEORLAKE(__i915) && \
686 	 IS_DISPLAY_STEP(__i915, since, until))
687 
688 #define IS_MTL_MEDIA_STEP(__i915, since, until) \
689 	(IS_METEORLAKE(__i915) && \
690 	 IS_MEDIA_STEP(__i915, since, until))
691 
692 /*
693  * DG2 hardware steppings are a bit unusual.  The hardware design was forked to
694  * create three variants (G10, G11, and G12) which each have distinct
695  * workaround sets.  The G11 and G12 forks of the DG2 design reset the GT
696  * stepping back to "A0" for their first iterations, even though they're more
697  * similar to a G10 B0 stepping and G10 C0 stepping respectively in terms of
698  * functionality and workarounds.  However the display stepping does not reset
699  * in the same manner --- a specific stepping like "B0" has a consistent
700  * meaning regardless of whether it belongs to a G10, G11, or G12 DG2.
701  *
702  * TLDR:  All GT workarounds and stepping-specific logic must be applied in
703  * relation to a specific subplatform (G10/G11/G12), whereas display workarounds
704  * and stepping-specific logic will be applied with a general DG2-wide stepping
705  * number.
706  */
707 #define IS_DG2_GRAPHICS_STEP(__i915, variant, since, until) \
708 	(IS_SUBPLATFORM(__i915, INTEL_DG2, INTEL_SUBPLATFORM_##variant) && \
709 	 IS_GRAPHICS_STEP(__i915, since, until))
710 
711 #define IS_DG2_DISPLAY_STEP(__i915, since, until) \
712 	(IS_DG2(__i915) && \
713 	 IS_DISPLAY_STEP(__i915, since, until))
714 
715 #define IS_PVC_BD_STEP(__i915, since, until) \
716 	(IS_PONTEVECCHIO(__i915) && \
717 	 IS_BASEDIE_STEP(__i915, since, until))
718 
719 #define IS_PVC_CT_STEP(__i915, since, until) \
720 	(IS_PONTEVECCHIO(__i915) && \
721 	 IS_GRAPHICS_STEP(__i915, since, until))
722 
723 #define IS_LP(i915)		(INTEL_INFO(i915)->is_lp)
724 #define IS_GEN9_LP(i915)	(GRAPHICS_VER(i915) == 9 && IS_LP(i915))
725 #define IS_GEN9_BC(i915)	(GRAPHICS_VER(i915) == 9 && !IS_LP(i915))
726 
727 #define __HAS_ENGINE(engine_mask, id) ((engine_mask) & BIT(id))
728 #define HAS_ENGINE(gt, id) __HAS_ENGINE((gt)->info.engine_mask, id)
729 
730 #define __ENGINE_INSTANCES_MASK(mask, first, count) ({			\
731 	unsigned int first__ = (first);					\
732 	unsigned int count__ = (count);					\
733 	((mask) & GENMASK(first__ + count__ - 1, first__)) >> first__;	\
734 })
735 
736 #define ENGINE_INSTANCES_MASK(gt, first, count) \
737 	__ENGINE_INSTANCES_MASK((gt)->info.engine_mask, first, count)
738 
739 #define RCS_MASK(gt) \
740 	ENGINE_INSTANCES_MASK(gt, RCS0, I915_MAX_RCS)
741 #define BCS_MASK(gt) \
742 	ENGINE_INSTANCES_MASK(gt, BCS0, I915_MAX_BCS)
743 #define VDBOX_MASK(gt) \
744 	ENGINE_INSTANCES_MASK(gt, VCS0, I915_MAX_VCS)
745 #define VEBOX_MASK(gt) \
746 	ENGINE_INSTANCES_MASK(gt, VECS0, I915_MAX_VECS)
747 #define CCS_MASK(gt) \
748 	ENGINE_INSTANCES_MASK(gt, CCS0, I915_MAX_CCS)
749 
750 #define HAS_MEDIA_RATIO_MODE(i915) (INTEL_INFO(i915)->has_media_ratio_mode)
751 
752 /*
753  * The Gen7 cmdparser copies the scanned buffer to the ggtt for execution
754  * All later gens can run the final buffer from the ppgtt
755  */
756 #define CMDPARSER_USES_GGTT(i915) (GRAPHICS_VER(i915) == 7)
757 
758 #define HAS_LLC(i915)	(INTEL_INFO(i915)->has_llc)
759 #define HAS_4TILE(i915)	(INTEL_INFO(i915)->has_4tile)
760 #define HAS_SNOOP(i915)	(INTEL_INFO(i915)->has_snoop)
761 #define HAS_EDRAM(i915)	((i915)->edram_size_mb)
762 #define HAS_SECURE_BATCHES(i915) (GRAPHICS_VER(i915) < 6)
763 #define HAS_WT(i915)	HAS_EDRAM(i915)
764 
765 #define HWS_NEEDS_PHYSICAL(i915)	(INTEL_INFO(i915)->hws_needs_physical)
766 
767 #define HAS_LOGICAL_RING_CONTEXTS(i915) \
768 		(INTEL_INFO(i915)->has_logical_ring_contexts)
769 #define HAS_LOGICAL_RING_ELSQ(i915) \
770 		(INTEL_INFO(i915)->has_logical_ring_elsq)
771 
772 #define HAS_EXECLISTS(i915) HAS_LOGICAL_RING_CONTEXTS(i915)
773 
774 #define INTEL_PPGTT(i915) (RUNTIME_INFO(i915)->ppgtt_type)
775 #define HAS_PPGTT(i915) \
776 	(INTEL_PPGTT(i915) != INTEL_PPGTT_NONE)
777 #define HAS_FULL_PPGTT(i915) \
778 	(INTEL_PPGTT(i915) >= INTEL_PPGTT_FULL)
779 
780 #define HAS_PAGE_SIZES(i915, sizes) ({ \
781 	GEM_BUG_ON((sizes) == 0); \
782 	((sizes) & ~RUNTIME_INFO(i915)->page_sizes) == 0; \
783 })
784 
785 #define HAS_OVERLAY(i915)		 (INTEL_INFO(i915)->display.has_overlay)
786 #define OVERLAY_NEEDS_PHYSICAL(i915) \
787 		(INTEL_INFO(i915)->display.overlay_needs_physical)
788 
789 /* Early gen2 have a totally busted CS tlb and require pinned batches. */
790 #define HAS_BROKEN_CS_TLB(i915)	(IS_I830(i915) || IS_I845G(i915))
791 
792 #define NEEDS_RC6_CTX_CORRUPTION_WA(i915)	\
793 	(IS_BROADWELL(i915) || GRAPHICS_VER(i915) == 9)
794 
795 /* WaRsDisableCoarsePowerGating:skl,cnl */
796 #define NEEDS_WaRsDisableCoarsePowerGating(i915)			\
797 	(IS_SKL_GT3(i915) || IS_SKL_GT4(i915))
798 
799 #define HAS_GMBUS_IRQ(i915) (DISPLAY_VER(i915) >= 4)
800 #define HAS_GMBUS_BURST_READ(i915) (DISPLAY_VER(i915) >= 11 || \
801 					IS_GEMINILAKE(i915) || \
802 					IS_KABYLAKE(i915))
803 
804 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
805  * rows, which changed the alignment requirements and fence programming.
806  */
807 #define HAS_128_BYTE_Y_TILING(i915) (GRAPHICS_VER(i915) != 2 && \
808 					 !(IS_I915G(i915) || IS_I915GM(i915)))
809 #define SUPPORTS_TV(i915)		(INTEL_INFO(i915)->display.supports_tv)
810 #define I915_HAS_HOTPLUG(i915)	(INTEL_INFO(i915)->display.has_hotplug)
811 
812 #define HAS_FW_BLC(i915)	(DISPLAY_VER(i915) > 2)
813 #define HAS_FBC(i915)	(RUNTIME_INFO(i915)->fbc_mask != 0)
814 #define HAS_CUR_FBC(i915)	(!HAS_GMCH(i915) && DISPLAY_VER(i915) >= 7)
815 
816 #define HAS_DPT(i915)	(DISPLAY_VER(i915) >= 13)
817 
818 #define HAS_IPS(i915)	(IS_HSW_ULT(i915) || IS_BROADWELL(i915))
819 
820 #define HAS_DP_MST(i915)	(INTEL_INFO(i915)->display.has_dp_mst)
821 #define HAS_DP20(i915)	(IS_DG2(i915) || DISPLAY_VER(i915) >= 14)
822 
823 #define HAS_DOUBLE_BUFFERED_M_N(i915)	(DISPLAY_VER(i915) >= 9 || IS_BROADWELL(i915))
824 
825 #define HAS_CDCLK_CRAWL(i915)	 (INTEL_INFO(i915)->display.has_cdclk_crawl)
826 #define HAS_CDCLK_SQUASH(i915)	 (INTEL_INFO(i915)->display.has_cdclk_squash)
827 #define HAS_DDI(i915)		 (INTEL_INFO(i915)->display.has_ddi)
828 #define HAS_FPGA_DBG_UNCLAIMED(i915) (INTEL_INFO(i915)->display.has_fpga_dbg)
829 #define HAS_PSR(i915)		 (INTEL_INFO(i915)->display.has_psr)
830 #define HAS_PSR_HW_TRACKING(i915) \
831 	(INTEL_INFO(i915)->display.has_psr_hw_tracking)
832 #define HAS_PSR2_SEL_FETCH(i915)	 (DISPLAY_VER(i915) >= 12)
833 #define HAS_TRANSCODER(i915, trans)	 ((RUNTIME_INFO(i915)->cpu_transcoder_mask & BIT(trans)) != 0)
834 
835 #define HAS_RC6(i915)		 (INTEL_INFO(i915)->has_rc6)
836 #define HAS_RC6p(i915)		 (INTEL_INFO(i915)->has_rc6p)
837 #define HAS_RC6pp(i915)		 (false) /* HW was never validated */
838 
839 #define HAS_RPS(i915)	(INTEL_INFO(i915)->has_rps)
840 
841 #define HAS_DMC(i915)	(RUNTIME_INFO(i915)->has_dmc)
842 #define HAS_DSB(i915)	(INTEL_INFO(i915)->display.has_dsb)
843 #define HAS_DSC(__i915)		(RUNTIME_INFO(__i915)->has_dsc)
844 #define HAS_HW_SAGV_WM(i915) (DISPLAY_VER(i915) >= 13 && !IS_DGFX(i915))
845 
846 #define HAS_HECI_PXP(i915) \
847 	(INTEL_INFO(i915)->has_heci_pxp)
848 
849 #define HAS_HECI_GSCFI(i915) \
850 	(INTEL_INFO(i915)->has_heci_gscfi)
851 
852 #define HAS_HECI_GSC(i915) (HAS_HECI_PXP(i915) || HAS_HECI_GSCFI(i915))
853 
854 #define HAS_MSO(i915)		(DISPLAY_VER(i915) >= 12)
855 
856 #define HAS_RUNTIME_PM(i915) (INTEL_INFO(i915)->has_runtime_pm)
857 #define HAS_64BIT_RELOC(i915) (INTEL_INFO(i915)->has_64bit_reloc)
858 
859 #define HAS_OA_BPC_REPORTING(i915) \
860 	(INTEL_INFO(i915)->has_oa_bpc_reporting)
861 #define HAS_OA_SLICE_CONTRIB_LIMITS(i915) \
862 	(INTEL_INFO(i915)->has_oa_slice_contrib_limits)
863 #define HAS_OAM(i915) \
864 	(INTEL_INFO(i915)->has_oam)
865 
866 /*
867  * Set this flag, when platform requires 64K GTT page sizes or larger for
868  * device local memory access.
869  */
870 #define HAS_64K_PAGES(i915) (INTEL_INFO(i915)->has_64k_pages)
871 
872 #define HAS_IPC(i915)		(INTEL_INFO(i915)->display.has_ipc)
873 #define HAS_SAGV(i915)		(DISPLAY_VER(i915) >= 9 && !IS_LP(i915))
874 
875 #define HAS_REGION(i915, i) (RUNTIME_INFO(i915)->memory_regions & (i))
876 #define HAS_LMEM(i915) HAS_REGION(i915, REGION_LMEM)
877 
878 #define HAS_EXTRA_GT_LIST(i915)   (INTEL_INFO(i915)->extra_gt_list)
879 
880 /*
881  * Platform has the dedicated compression control state for each lmem surfaces
882  * stored in lmem to support the 3D and media compression formats.
883  */
884 #define HAS_FLAT_CCS(i915)   (INTEL_INFO(i915)->has_flat_ccs)
885 
886 #define HAS_GT_UC(i915)	(INTEL_INFO(i915)->has_gt_uc)
887 
888 #define HAS_POOLED_EU(i915)	(RUNTIME_INFO(i915)->has_pooled_eu)
889 
890 #define HAS_GLOBAL_MOCS_REGISTERS(i915)	(INTEL_INFO(i915)->has_global_mocs)
891 
892 #define HAS_GMCH(i915) (INTEL_INFO(i915)->display.has_gmch)
893 
894 #define HAS_GMD_ID(i915)	(INTEL_INFO(i915)->has_gmd_id)
895 
896 #define HAS_LSPCON(i915) (IS_DISPLAY_VER(i915, 9, 10))
897 
898 #define HAS_L3_CCS_READ(i915) (INTEL_INFO(i915)->has_l3_ccs_read)
899 
900 /* DPF == dynamic parity feature */
901 #define HAS_L3_DPF(i915) (INTEL_INFO(i915)->has_l3_dpf)
902 #define NUM_L3_SLICES(i915) (IS_HSW_GT3(i915) ? \
903 				 2 : HAS_L3_DPF(i915))
904 
905 #define INTEL_NUM_PIPES(i915) (hweight8(RUNTIME_INFO(i915)->pipe_mask))
906 
907 #define HAS_DISPLAY(i915) (RUNTIME_INFO(i915)->pipe_mask != 0)
908 
909 #define HAS_VRR(i915)	(DISPLAY_VER(i915) >= 11)
910 
911 #define HAS_ASYNC_FLIPS(i915)		(DISPLAY_VER(i915) >= 5)
912 
913 /* Only valid when HAS_DISPLAY() is true */
914 #define INTEL_DISPLAY_ENABLED(i915) \
915 	(drm_WARN_ON(&(i915)->drm, !HAS_DISPLAY(i915)),		\
916 	 !(i915)->params.disable_display &&				\
917 	 !intel_opregion_headless_sku(i915))
918 
919 #define HAS_GUC_DEPRIVILEGE(i915) \
920 	(INTEL_INFO(i915)->has_guc_deprivilege)
921 
922 #define HAS_D12_PLANE_MINIMIZATION(i915) (IS_ROCKETLAKE(i915) || \
923 					      IS_ALDERLAKE_S(i915))
924 
925 #define HAS_MBUS_JOINING(i915) (IS_ALDERLAKE_P(i915) || DISPLAY_VER(i915) >= 14)
926 
927 #define HAS_3D_PIPELINE(i915)	(INTEL_INFO(i915)->has_3d_pipeline)
928 
929 #define HAS_ONE_EU_PER_FUSE_BIT(i915)	(INTEL_INFO(i915)->has_one_eu_per_fuse_bit)
930 
931 #define HAS_LMEMBAR_SMEM_STOLEN(i915) (!HAS_LMEM(i915) && \
932 				       GRAPHICS_VER_FULL(i915) >= IP_VER(12, 70))
933 
934 /* intel_device_info.c */
935 static inline struct intel_device_info *
936 mkwrite_device_info(struct drm_i915_private *dev_priv)
937 {
938 	return (struct intel_device_info *)INTEL_INFO(dev_priv);
939 }
940 
941 #endif
942