xref: /linux/drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h (revision a1ff5a7d78a036d6c2178ee5acd6ba4946243800)
1 /* SPDX-License-Identifier: MIT */
2 /*
3  * Copyright © 2014-2019 Intel Corporation
4  */
5 
6 #ifndef _INTEL_GUC_FWIF_H
7 #define _INTEL_GUC_FWIF_H
8 
9 #include <linux/bits.h>
10 #include <linux/compiler.h>
11 #include <linux/types.h>
12 #include "gt/intel_engine_types.h"
13 
14 #include "abi/guc_actions_abi.h"
15 #include "abi/guc_actions_slpc_abi.h"
16 #include "abi/guc_errors_abi.h"
17 #include "abi/guc_communication_mmio_abi.h"
18 #include "abi/guc_communication_ctb_abi.h"
19 #include "abi/guc_klvs_abi.h"
20 #include "abi/guc_messages_abi.h"
21 
22 /* Payload length only i.e. don't include G2H header length */
23 #define G2H_LEN_DW_SCHED_CONTEXT_MODE_SET	2
24 #define G2H_LEN_DW_DEREGISTER_CONTEXT		1
25 #define G2H_LEN_DW_INVALIDATE_TLB		1
26 
27 #define GUC_CONTEXT_DISABLE		0
28 #define GUC_CONTEXT_ENABLE		1
29 
30 #define GUC_CLIENT_PRIORITY_KMD_HIGH	0
31 #define GUC_CLIENT_PRIORITY_HIGH	1
32 #define GUC_CLIENT_PRIORITY_KMD_NORMAL	2
33 #define GUC_CLIENT_PRIORITY_NORMAL	3
34 #define GUC_CLIENT_PRIORITY_NUM		4
35 
36 #define GUC_MAX_CONTEXT_ID		65535
37 #define	GUC_INVALID_CONTEXT_ID		GUC_MAX_CONTEXT_ID
38 
39 #define GUC_RENDER_CLASS		0
40 #define GUC_VIDEO_CLASS			1
41 #define GUC_VIDEOENHANCE_CLASS		2
42 #define GUC_BLITTER_CLASS		3
43 #define GUC_COMPUTE_CLASS		4
44 #define GUC_GSC_OTHER_CLASS		5
45 #define GUC_LAST_ENGINE_CLASS		GUC_GSC_OTHER_CLASS
46 #define GUC_MAX_ENGINE_CLASSES		16
47 #define GUC_MAX_INSTANCES_PER_CLASS	32
48 
49 #define GUC_DOORBELL_INVALID		256
50 
51 /*
52  * Work queue item header definitions
53  *
54  * Work queue is circular buffer used to submit complex (multi-lrc) submissions
55  * to the GuC. A work queue item is an entry in the circular buffer.
56  */
57 #define WQ_STATUS_ACTIVE		1
58 #define WQ_STATUS_SUSPENDED		2
59 #define WQ_STATUS_CMD_ERROR		3
60 #define WQ_STATUS_ENGINE_ID_NOT_USED	4
61 #define WQ_STATUS_SUSPENDED_FROM_RESET	5
62 #define WQ_TYPE_BATCH_BUF		0x1
63 #define WQ_TYPE_PSEUDO			0x2
64 #define WQ_TYPE_INORDER			0x3
65 #define WQ_TYPE_NOOP			0x4
66 #define WQ_TYPE_MULTI_LRC		0x5
67 #define WQ_TYPE_MASK			GENMASK(7, 0)
68 #define WQ_LEN_MASK			GENMASK(26, 16)
69 
70 #define WQ_GUC_ID_MASK			GENMASK(15, 0)
71 #define WQ_RING_TAIL_MASK		GENMASK(28, 18)
72 
73 #define GUC_STAGE_DESC_ATTR_ACTIVE	BIT(0)
74 #define GUC_STAGE_DESC_ATTR_PENDING_DB	BIT(1)
75 #define GUC_STAGE_DESC_ATTR_KERNEL	BIT(2)
76 #define GUC_STAGE_DESC_ATTR_PREEMPT	BIT(3)
77 #define GUC_STAGE_DESC_ATTR_RESET	BIT(4)
78 #define GUC_STAGE_DESC_ATTR_WQLOCKED	BIT(5)
79 #define GUC_STAGE_DESC_ATTR_PCH		BIT(6)
80 #define GUC_STAGE_DESC_ATTR_TERMINATED	BIT(7)
81 
82 #define GUC_CTL_LOG_PARAMS		0
83 #define   GUC_LOG_VALID			BIT(0)
84 #define   GUC_LOG_NOTIFY_ON_HALF_FULL	BIT(1)
85 #define   GUC_LOG_CAPTURE_ALLOC_UNITS	BIT(2)
86 #define   GUC_LOG_LOG_ALLOC_UNITS	BIT(3)
87 #define   GUC_LOG_CRASH_SHIFT		4
88 #define   GUC_LOG_CRASH_MASK		(0x3 << GUC_LOG_CRASH_SHIFT)
89 #define   GUC_LOG_DEBUG_SHIFT		6
90 #define   GUC_LOG_DEBUG_MASK	        (0xF << GUC_LOG_DEBUG_SHIFT)
91 #define   GUC_LOG_CAPTURE_SHIFT		10
92 #define   GUC_LOG_CAPTURE_MASK	        (0x3 << GUC_LOG_CAPTURE_SHIFT)
93 #define   GUC_LOG_BUF_ADDR_SHIFT	12
94 
95 #define GUC_CTL_WA			1
96 #define   GUC_WA_GAM_CREDITS		BIT(10)
97 #define   GUC_WA_DUAL_QUEUE		BIT(11)
98 #define   GUC_WA_RCS_RESET_BEFORE_RC6	BIT(13)
99 #define   GUC_WA_PRE_PARSER		BIT(14)
100 #define   GUC_WA_CONTEXT_ISOLATION	BIT(15)
101 #define   GUC_WA_RCS_CCS_SWITCHOUT	BIT(16)
102 #define   GUC_WA_HOLD_CCS_SWITCHOUT	BIT(17)
103 #define   GUC_WA_POLLCS			BIT(18)
104 #define   GUC_WA_RCS_REGS_IN_CCS_REGS_LIST	BIT(21)
105 #define   GUC_WA_ENABLE_TSC_CHECK_ON_RC6	BIT(22)
106 
107 #define GUC_CTL_FEATURE			2
108 #define   GUC_CTL_ENABLE_SLPC		BIT(2)
109 #define   GUC_CTL_DISABLE_SCHEDULER	BIT(14)
110 
111 #define GUC_CTL_DEBUG			3
112 #define   GUC_LOG_VERBOSITY_SHIFT	0
113 #define   GUC_LOG_VERBOSITY_LOW		(0 << GUC_LOG_VERBOSITY_SHIFT)
114 #define   GUC_LOG_VERBOSITY_MED		(1 << GUC_LOG_VERBOSITY_SHIFT)
115 #define   GUC_LOG_VERBOSITY_HIGH	(2 << GUC_LOG_VERBOSITY_SHIFT)
116 #define   GUC_LOG_VERBOSITY_ULTRA	(3 << GUC_LOG_VERBOSITY_SHIFT)
117 /* Verbosity range-check limits, without the shift */
118 #define	  GUC_LOG_VERBOSITY_MIN		0
119 #define	  GUC_LOG_VERBOSITY_MAX		3
120 #define	  GUC_LOG_VERBOSITY_MASK	0x0000000f
121 #define	  GUC_LOG_DESTINATION_MASK	(3 << 4)
122 #define   GUC_LOG_DISABLED		(1 << 6)
123 #define   GUC_PROFILE_ENABLED		(1 << 7)
124 
125 #define GUC_CTL_ADS			4
126 #define   GUC_ADS_ADDR_SHIFT		1
127 #define   GUC_ADS_ADDR_MASK		(0xFFFFF << GUC_ADS_ADDR_SHIFT)
128 
129 #define GUC_CTL_DEVID			5
130 
131 #define GUC_CTL_MAX_DWORDS		(SOFT_SCRATCH_COUNT - 2) /* [1..14] */
132 
133 /* Generic GT SysInfo data types */
134 #define GUC_GENERIC_GT_SYSINFO_SLICE_ENABLED		0
135 #define GUC_GENERIC_GT_SYSINFO_VDBOX_SFC_SUPPORT_MASK	1
136 #define GUC_GENERIC_GT_SYSINFO_DOORBELL_COUNT_PER_SQIDI	2
137 #define GUC_GENERIC_GT_SYSINFO_MAX			16
138 
139 /*
140  * The class goes in bits [0..2] of the GuC ID, the instance in bits [3..6].
141  * Bit 7 can be used for operations that apply to all engine classes&instances.
142  */
143 #define GUC_ENGINE_CLASS_SHIFT		0
144 #define GUC_ENGINE_CLASS_MASK		(0x7 << GUC_ENGINE_CLASS_SHIFT)
145 #define GUC_ENGINE_INSTANCE_SHIFT	3
146 #define GUC_ENGINE_INSTANCE_MASK	(0xf << GUC_ENGINE_INSTANCE_SHIFT)
147 #define GUC_ENGINE_ALL_INSTANCES	BIT(7)
148 
149 #define MAKE_GUC_ID(class, instance) \
150 	(((class) << GUC_ENGINE_CLASS_SHIFT) | \
151 	 ((instance) << GUC_ENGINE_INSTANCE_SHIFT))
152 
153 #define GUC_ID_TO_ENGINE_CLASS(guc_id) \
154 	(((guc_id) & GUC_ENGINE_CLASS_MASK) >> GUC_ENGINE_CLASS_SHIFT)
155 #define GUC_ID_TO_ENGINE_INSTANCE(guc_id) \
156 	(((guc_id) & GUC_ENGINE_INSTANCE_MASK) >> GUC_ENGINE_INSTANCE_SHIFT)
157 
158 #define SLPC_EVENT(id, c) (\
159 FIELD_PREP(HOST2GUC_PC_SLPC_REQUEST_MSG_1_EVENT_ID, id) | \
160 FIELD_PREP(HOST2GUC_PC_SLPC_REQUEST_MSG_1_EVENT_ARGC, c) \
161 )
162 
163 /* the GuC arrays don't include OTHER_CLASS */
164 static u8 engine_class_guc_class_map[] = {
165 	[RENDER_CLASS]            = GUC_RENDER_CLASS,
166 	[COPY_ENGINE_CLASS]       = GUC_BLITTER_CLASS,
167 	[VIDEO_DECODE_CLASS]      = GUC_VIDEO_CLASS,
168 	[VIDEO_ENHANCEMENT_CLASS] = GUC_VIDEOENHANCE_CLASS,
169 	[OTHER_CLASS]             = GUC_GSC_OTHER_CLASS,
170 	[COMPUTE_CLASS]           = GUC_COMPUTE_CLASS,
171 };
172 
173 static u8 guc_class_engine_class_map[] = {
174 	[GUC_RENDER_CLASS]       = RENDER_CLASS,
175 	[GUC_BLITTER_CLASS]      = COPY_ENGINE_CLASS,
176 	[GUC_VIDEO_CLASS]        = VIDEO_DECODE_CLASS,
177 	[GUC_VIDEOENHANCE_CLASS] = VIDEO_ENHANCEMENT_CLASS,
178 	[GUC_COMPUTE_CLASS]      = COMPUTE_CLASS,
179 	[GUC_GSC_OTHER_CLASS]    = OTHER_CLASS,
180 };
181 
engine_class_to_guc_class(u8 class)182 static inline u8 engine_class_to_guc_class(u8 class)
183 {
184 	BUILD_BUG_ON(ARRAY_SIZE(engine_class_guc_class_map) != MAX_ENGINE_CLASS + 1);
185 	GEM_BUG_ON(class > MAX_ENGINE_CLASS);
186 
187 	return engine_class_guc_class_map[class];
188 }
189 
guc_class_to_engine_class(u8 guc_class)190 static inline u8 guc_class_to_engine_class(u8 guc_class)
191 {
192 	BUILD_BUG_ON(ARRAY_SIZE(guc_class_engine_class_map) != GUC_LAST_ENGINE_CLASS + 1);
193 	GEM_BUG_ON(guc_class > GUC_LAST_ENGINE_CLASS);
194 
195 	return guc_class_engine_class_map[guc_class];
196 }
197 
198 /* Work item for submitting workloads into work queue of GuC. */
199 struct guc_wq_item {
200 	u32 header;
201 	u32 context_desc;
202 	u32 submit_element_info;
203 	u32 fence_id;
204 } __packed;
205 
206 struct guc_process_desc_v69 {
207 	u32 stage_id;
208 	u64 db_base_addr;
209 	u32 head;
210 	u32 tail;
211 	u32 error_offset;
212 	u64 wq_base_addr;
213 	u32 wq_size_bytes;
214 	u32 wq_status;
215 	u32 engine_presence;
216 	u32 priority;
217 	u32 reserved[36];
218 } __packed;
219 
220 struct guc_sched_wq_desc {
221 	u32 head;
222 	u32 tail;
223 	u32 error_offset;
224 	u32 wq_status;
225 	u32 reserved[28];
226 } __packed;
227 
228 /* Helper for context registration H2G */
229 struct guc_ctxt_registration_info {
230 	u32 flags;
231 	u32 context_idx;
232 	u32 engine_class;
233 	u32 engine_submit_mask;
234 	u32 wq_desc_lo;
235 	u32 wq_desc_hi;
236 	u32 wq_base_lo;
237 	u32 wq_base_hi;
238 	u32 wq_size;
239 	u32 hwlrca_lo;
240 	u32 hwlrca_hi;
241 };
242 #define CONTEXT_REGISTRATION_FLAG_KMD	BIT(0)
243 
244 /* Preempt to idle on quantum expiry */
245 #define CONTEXT_POLICY_FLAG_PREEMPT_TO_IDLE_V69	BIT(0)
246 
247 /*
248  * GuC Context registration descriptor.
249  * FIXME: This is only required to exist during context registration.
250  * The current 1:1 between guc_lrc_desc and LRCs for the lifetime of the LRC
251  * is not required.
252  */
253 struct guc_lrc_desc_v69 {
254 	u32 hw_context_desc;
255 	u32 slpm_perf_mode_hint;	/* SPLC v1 only */
256 	u32 slpm_freq_hint;
257 	u32 engine_submit_mask;		/* In logical space */
258 	u8 engine_class;
259 	u8 reserved0[3];
260 	u32 priority;
261 	u32 process_desc;
262 	u32 wq_addr;
263 	u32 wq_size;
264 	u32 context_flags;		/* CONTEXT_REGISTRATION_* */
265 	/* Time for one workload to execute. (in micro seconds) */
266 	u32 execution_quantum;
267 	/* Time to wait for a preemption request to complete before issuing a
268 	 * reset. (in micro seconds).
269 	 */
270 	u32 preemption_timeout;
271 	u32 policy_flags;		/* CONTEXT_POLICY_* */
272 	u32 reserved1[19];
273 } __packed;
274 
275 /* 32-bit KLV structure as used by policy updates and others */
276 struct guc_klv_generic_dw_t {
277 	u32 kl;
278 	u32 value;
279 } __packed;
280 
281 /* Format of the UPDATE_CONTEXT_POLICIES H2G data packet */
282 struct guc_update_context_policy_header {
283 	u32 action;
284 	u32 ctx_id;
285 } __packed;
286 
287 struct guc_update_context_policy {
288 	struct guc_update_context_policy_header header;
289 	struct guc_klv_generic_dw_t klv[GUC_CONTEXT_POLICIES_KLV_NUM_IDS];
290 } __packed;
291 
292 /* Format of the UPDATE_SCHEDULING_POLICIES H2G data packet */
293 struct guc_update_scheduling_policy_header {
294 	u32 action;
295 } __packed;
296 
297 /*
298  * Can't dynamically allocate memory for the scheduling policy KLV because
299  * it will be sent from within the reset path. Need a fixed size lump on
300  * the stack instead :(.
301  *
302  * Currently, there is only one KLV defined, which has 1 word of KL + 2 words of V.
303  */
304 #define MAX_SCHEDULING_POLICY_SIZE 3
305 
306 struct guc_update_scheduling_policy {
307 	struct guc_update_scheduling_policy_header header;
308 	u32 data[MAX_SCHEDULING_POLICY_SIZE];
309 } __packed;
310 
311 #define GUC_POWER_UNSPECIFIED	0
312 #define GUC_POWER_D0		1
313 #define GUC_POWER_D1		2
314 #define GUC_POWER_D2		3
315 #define GUC_POWER_D3		4
316 
317 /* Scheduling policy settings */
318 
319 #define GLOBAL_SCHEDULE_POLICY_RC_YIELD_DURATION	100	/* in ms */
320 #define GLOBAL_SCHEDULE_POLICY_RC_YIELD_RATIO		50	/* in percent */
321 
322 #define GLOBAL_POLICY_MAX_NUM_WI 15
323 
324 /* Don't reset an engine upon preemption failure */
325 #define GLOBAL_POLICY_DISABLE_ENGINE_RESET				BIT(0)
326 
327 #define GLOBAL_POLICY_DEFAULT_DPC_PROMOTE_TIME_US 500000
328 
329 /*
330  * GuC converts the timeout to clock ticks internally. Different platforms have
331  * different GuC clocks. Thus, the maximum value before overflow is platform
332  * dependent. Current worst case scenario is about 110s. So, the spec says to
333  * limit to 100s to be safe.
334  */
335 #define GUC_POLICY_MAX_EXEC_QUANTUM_US		(100 * 1000 * 1000UL)
336 #define GUC_POLICY_MAX_PREEMPT_TIMEOUT_US	(100 * 1000 * 1000UL)
337 
guc_policy_max_exec_quantum_ms(void)338 static inline u32 guc_policy_max_exec_quantum_ms(void)
339 {
340 	BUILD_BUG_ON(GUC_POLICY_MAX_EXEC_QUANTUM_US >= UINT_MAX);
341 	return GUC_POLICY_MAX_EXEC_QUANTUM_US / 1000;
342 }
343 
guc_policy_max_preempt_timeout_ms(void)344 static inline u32 guc_policy_max_preempt_timeout_ms(void)
345 {
346 	BUILD_BUG_ON(GUC_POLICY_MAX_PREEMPT_TIMEOUT_US >= UINT_MAX);
347 	return GUC_POLICY_MAX_PREEMPT_TIMEOUT_US / 1000;
348 }
349 
350 struct guc_policies {
351 	u32 submission_queue_depth[GUC_MAX_ENGINE_CLASSES];
352 	/* In micro seconds. How much time to allow before DPC processing is
353 	 * called back via interrupt (to prevent DPC queue drain starving).
354 	 * Typically 1000s of micro seconds (example only, not granularity). */
355 	u32 dpc_promote_time;
356 
357 	/* Must be set to take these new values. */
358 	u32 is_valid;
359 
360 	/* Max number of WIs to process per call. A large value may keep CS
361 	 * idle. */
362 	u32 max_num_work_items;
363 
364 	u32 global_flags;
365 	u32 reserved[4];
366 } __packed;
367 
368 /* GuC MMIO reg state struct */
369 struct guc_mmio_reg {
370 	u32 offset;
371 	u32 value;
372 	u32 flags;
373 #define GUC_REGSET_MASKED		BIT(0)
374 #define GUC_REGSET_NEEDS_STEERING	BIT(1)
375 #define GUC_REGSET_MASKED_WITH_VALUE	BIT(2)
376 #define GUC_REGSET_RESTORE_ONLY		BIT(3)
377 #define GUC_REGSET_STEERING_GROUP       GENMASK(15, 12)
378 #define GUC_REGSET_STEERING_INSTANCE    GENMASK(23, 20)
379 	u32 mask;
380 } __packed;
381 
382 /* GuC register sets */
383 struct guc_mmio_reg_set {
384 	u32 address;
385 	u16 count;
386 	u16 reserved;
387 } __packed;
388 
389 /* HW info */
390 struct guc_gt_system_info {
391 	u8 mapping_table[GUC_MAX_ENGINE_CLASSES][GUC_MAX_INSTANCES_PER_CLASS];
392 	u32 engine_enabled_masks[GUC_MAX_ENGINE_CLASSES];
393 	u32 generic_gt_sysinfo[GUC_GENERIC_GT_SYSINFO_MAX];
394 } __packed;
395 
396 enum {
397 	GUC_CAPTURE_LIST_INDEX_PF = 0,
398 	GUC_CAPTURE_LIST_INDEX_VF = 1,
399 	GUC_CAPTURE_LIST_INDEX_MAX = 2,
400 };
401 
402 /*Register-types of GuC capture register lists */
403 enum guc_capture_type {
404 	GUC_CAPTURE_LIST_TYPE_GLOBAL = 0,
405 	GUC_CAPTURE_LIST_TYPE_ENGINE_CLASS,
406 	GUC_CAPTURE_LIST_TYPE_ENGINE_INSTANCE,
407 	GUC_CAPTURE_LIST_TYPE_MAX,
408 };
409 
410 /* Class indecies for capture_class and capture_instance arrays */
411 enum {
412 	GUC_CAPTURE_LIST_CLASS_RENDER_COMPUTE = 0,
413 	GUC_CAPTURE_LIST_CLASS_VIDEO = 1,
414 	GUC_CAPTURE_LIST_CLASS_VIDEOENHANCE = 2,
415 	GUC_CAPTURE_LIST_CLASS_BLITTER = 3,
416 	GUC_CAPTURE_LIST_CLASS_GSC_OTHER = 4,
417 };
418 
419 /* GuC Additional Data Struct */
420 struct guc_ads {
421 	struct guc_mmio_reg_set reg_state_list[GUC_MAX_ENGINE_CLASSES][GUC_MAX_INSTANCES_PER_CLASS];
422 	u32 reserved0;
423 	u32 scheduler_policies;
424 	u32 gt_system_info;
425 	u32 reserved1;
426 	u32 control_data;
427 	u32 golden_context_lrca[GUC_MAX_ENGINE_CLASSES];
428 	u32 eng_state_size[GUC_MAX_ENGINE_CLASSES];
429 	u32 private_data;
430 	u32 reserved2;
431 	u32 capture_instance[GUC_CAPTURE_LIST_INDEX_MAX][GUC_MAX_ENGINE_CLASSES];
432 	u32 capture_class[GUC_CAPTURE_LIST_INDEX_MAX][GUC_MAX_ENGINE_CLASSES];
433 	u32 capture_global[GUC_CAPTURE_LIST_INDEX_MAX];
434 	u32 wa_klv_addr_lo;
435 	u32 wa_klv_addr_hi;
436 	u32 wa_klv_size;
437 	u32 reserved[11];
438 } __packed;
439 
440 /* Engine usage stats */
441 struct guc_engine_usage_record {
442 	u32 current_context_index;
443 	u32 last_switch_in_stamp;
444 	u32 reserved0;
445 	u32 total_runtime;
446 	u32 reserved1[4];
447 } __packed;
448 
449 struct guc_engine_usage {
450 	struct guc_engine_usage_record engines[GUC_MAX_ENGINE_CLASSES][GUC_MAX_INSTANCES_PER_CLASS];
451 } __packed;
452 
453 /* GuC logging structures */
454 
455 enum guc_log_buffer_type {
456 	GUC_DEBUG_LOG_BUFFER,
457 	GUC_CRASH_DUMP_LOG_BUFFER,
458 	GUC_CAPTURE_LOG_BUFFER,
459 	GUC_MAX_LOG_BUFFER
460 };
461 
462 /*
463  * struct guc_log_buffer_state - GuC log buffer state
464  *
465  * Below state structure is used for coordination of retrieval of GuC firmware
466  * logs. Separate state is maintained for each log buffer type.
467  * read_ptr points to the location where i915 read last in log buffer and
468  * is read only for GuC firmware. write_ptr is incremented by GuC with number
469  * of bytes written for each log entry and is read only for i915.
470  * When any type of log buffer becomes half full, GuC sends a flush interrupt.
471  * GuC firmware expects that while it is writing to 2nd half of the buffer,
472  * first half would get consumed by Host and then get a flush completed
473  * acknowledgment from Host, so that it does not end up doing any overwrite
474  * causing loss of logs. So when buffer gets half filled & i915 has requested
475  * for interrupt, GuC will set flush_to_file field, set the sampled_write_ptr
476  * to the value of write_ptr and raise the interrupt.
477  * On receiving the interrupt i915 should read the buffer, clear flush_to_file
478  * field and also update read_ptr with the value of sample_write_ptr, before
479  * sending an acknowledgment to GuC. marker & version fields are for internal
480  * usage of GuC and opaque to i915. buffer_full_cnt field is incremented every
481  * time GuC detects the log buffer overflow.
482  */
483 struct guc_log_buffer_state {
484 	u32 marker[2];
485 	u32 read_ptr;
486 	u32 write_ptr;
487 	u32 size;
488 	u32 sampled_write_ptr;
489 	u32 wrap_offset;
490 	union {
491 		struct {
492 			u32 flush_to_file:1;
493 			u32 buffer_full_cnt:4;
494 			u32 reserved:27;
495 		};
496 		u32 flags;
497 	};
498 	u32 version;
499 } __packed;
500 
501 /* This action will be programmed in C1BC - SOFT_SCRATCH_15_REG */
502 enum intel_guc_recv_message {
503 	INTEL_GUC_RECV_MSG_CRASH_DUMP_POSTED = BIT(1),
504 	INTEL_GUC_RECV_MSG_EXCEPTION = BIT(30),
505 };
506 
507 #endif
508