1 /* SPDX-License-Identifier: MIT */
3 * Copyright © 2019 Intel Corporation
6 #ifndef __INTEL_GT_TYPES__
7 #define __INTEL_GT_TYPES__
9 #include <linux/ktime.h>
10 #include <linux/list.h>
11 #include <linux/llist.h>
12 #include <linux/mutex.h>
13 #include <linux/notifier.h>
14 #include <linux/spinlock.h>
15 #include <linux/types.h>
16 #include <linux/workqueue.h>
18 #include "uc/intel_uc.h"
21 #include "intel_engine_types.h"
22 #include "intel_gt_buffer_pool_types.h"
23 #include "intel_llc_types.h"
24 #include "intel_reset_types.h"
25 #include "intel_rc6_types.h"
26 #include "intel_rps_types.h"
27 #include "intel_migrate_types.h"
28 #include "intel_wakeref.h"
29 #include "pxp/intel_pxp_types.h"
31 struct drm_i915_private;
33 struct intel_engine_cs;
36 struct intel_mmio_range {
42 * The hardware has multiple kinds of multicast register ranges that need
43 * special register steering (and future platforms are expected to add
46 * During driver startup, we initialize the steering control register to
47 * direct reads to a slice/subslice that are valid for the 'subslice' class
48 * of multicast registers. If another type of steering does not have any
49 * overlap in valid steering targets with 'subslice' style registers, we will
50 * need to explicitly re-steer reads of registers of the other type.
52 * Only the replication types that may need additional non-default steering
55 enum intel_steering_type {
63 enum intel_submission_method {
64 INTEL_SUBMISSION_RING,
65 INTEL_SUBMISSION_ELSP,
70 struct drm_i915_private *i915;
71 struct intel_uncore *uncore;
72 struct i915_ggtt *ggtt;
76 struct i915_wa_list wa_list;
78 struct intel_gt_timelines {
79 spinlock_t lock; /* protects active_list */
80 struct list_head active_list;
83 struct intel_gt_requests {
85 * We leave the user IRQ off as much as possible,
86 * but this means that requests will finish and never
87 * be retired once the system goes idle. Set a timer to
88 * fire periodically while the ring is running. When it
89 * fires, go retire requests.
91 struct delayed_work retire_work;
95 struct llist_head list;
96 struct work_struct work;
99 struct intel_wakeref wakeref;
100 atomic_t user_wakeref;
102 struct list_head closed_vma;
103 spinlock_t closed_lock; /* guards the list of closed_vma */
105 ktime_t last_init_time;
106 struct intel_reset reset;
109 * Is the GPU currently considered idle, or busy executing
110 * userspace requests? Whilst idle, we allow runtime power
111 * management to power down the hardware and display clocks.
112 * In order to reduce the effect on performance, there
113 * is a slight delay before we do so.
115 intel_wakeref_t awake;
120 struct intel_llc llc;
121 struct intel_rc6 rc6;
122 struct intel_rps rps;
135 * @lock: Lock protecting the below fields.
137 seqcount_mutex_t lock;
140 * @total: Total time this engine was busy.
142 * Accumulated time not counting the most recent block in cases
143 * where engine is currently busy (active > 0).
148 * @start: Timestamp of the last idle to active transition.
150 * Idle is defined as active == 0, active is active > 0.
155 struct intel_engine_cs *engine[I915_NUM_ENGINES];
156 struct intel_engine_cs *engine_class[MAX_ENGINE_CLASS + 1]
157 [MAX_ENGINE_INSTANCE + 1];
158 enum intel_submission_method submission_method;
161 * Default address space (either GGTT or ppGTT depending on arch).
163 * Reserved for exclusive use by the kernel.
165 struct i915_address_space *vm;
168 * A pool of objects to use as shadow copies of client batch buffers
169 * when the command parser is enabled. Prevents the client from
170 * modifying the batch contents after software parsing.
172 * Buffers older than 1s are periodically reaped from the pool,
173 * or may be reclaimed by the shrinker before then.
175 struct intel_gt_buffer_pool buffer_pool;
177 struct i915_vma *scratch;
179 struct intel_migrate migrate;
181 const struct intel_mmio_range *steering_table[NUM_STEERING_TYPES];
183 struct intel_gt_info {
184 intel_engine_mask_t engine_mask;
190 /* General presence of SFC units */
193 /* Media engine access to SFC per instance */
196 /* Slice/subslice/EU info */
197 struct sseu_dev_info sseu;
199 unsigned long mslice_mask;
206 struct intel_pxp pxp;
209 enum intel_gt_scratch_field {
211 INTEL_GT_SCRATCH_FIELD_DEFAULT = 0,
214 INTEL_GT_SCRATCH_FIELD_RENDER_FLUSH = 128,
217 INTEL_GT_SCRATCH_FIELD_COHERENTL3_WA = 256,
220 INTEL_GT_SCRATCH_FIELD_PERF_CS_GPR = 2048,
223 INTEL_GT_SCRATCH_FIELD_PERF_PREDICATE_RESULT_1 = 2096,
226 #endif /* __INTEL_GT_TYPES_H__ */