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"
19 #include "intel_gsc.h"
22 #include "intel_engine_types.h"
23 #include "intel_gt_buffer_pool_types.h"
24 #include "intel_hwconfig.h"
25 #include "intel_llc_types.h"
26 #include "intel_reset_types.h"
27 #include "intel_rc6_types.h"
28 #include "intel_rps_types.h"
29 #include "intel_migrate_types.h"
30 #include "intel_wakeref.h"
31 #include "pxp/intel_pxp_types.h"
33 struct drm_i915_private;
35 struct intel_engine_cs;
38 struct intel_mmio_range {
44 * The hardware has multiple kinds of multicast register ranges that need
45 * special register steering (and future platforms are expected to add
48 * During driver startup, we initialize the steering control register to
49 * direct reads to a slice/subslice that are valid for the 'subslice' class
50 * of multicast registers. If another type of steering does not have any
51 * overlap in valid steering targets with 'subslice' style registers, we will
52 * need to explicitly re-steer reads of registers of the other type.
54 * Only the replication types that may need additional non-default steering
57 enum intel_steering_type {
65 enum intel_submission_method {
66 INTEL_SUBMISSION_RING,
67 INTEL_SUBMISSION_ELSP,
72 struct drm_i915_private *i915;
73 struct intel_uncore *uncore;
74 struct i915_ggtt *ggtt;
79 struct mutex tlb_invalidate_lock;
81 struct i915_wa_list wa_list;
83 struct intel_gt_timelines {
84 spinlock_t lock; /* protects active_list */
85 struct list_head active_list;
88 struct intel_gt_requests {
90 * We leave the user IRQ off as much as possible,
91 * but this means that requests will finish and never
92 * be retired once the system goes idle. Set a timer to
93 * fire periodically while the ring is running. When it
94 * fires, go retire requests.
96 struct delayed_work retire_work;
100 struct llist_head list;
101 struct work_struct work;
104 struct intel_wakeref wakeref;
105 atomic_t user_wakeref;
107 struct list_head closed_vma;
108 spinlock_t closed_lock; /* guards the list of closed_vma */
110 ktime_t last_init_time;
111 struct intel_reset reset;
114 * Is the GPU currently considered idle, or busy executing
115 * userspace requests? Whilst idle, we allow runtime power
116 * management to power down the hardware and display clocks.
117 * In order to reduce the effect on performance, there
118 * is a slight delay before we do so.
120 intel_wakeref_t awake;
125 struct intel_llc llc;
126 struct intel_rc6 rc6;
127 struct intel_rps rps;
140 * @lock: Lock protecting the below fields.
142 seqcount_mutex_t lock;
145 * @total: Total time this engine was busy.
147 * Accumulated time not counting the most recent block in cases
148 * where engine is currently busy (active > 0).
153 * @start: Timestamp of the last idle to active transition.
155 * Idle is defined as active == 0, active is active > 0.
160 struct intel_engine_cs *engine[I915_NUM_ENGINES];
161 struct intel_engine_cs *engine_class[MAX_ENGINE_CLASS + 1]
162 [MAX_ENGINE_INSTANCE + 1];
163 enum intel_submission_method submission_method;
166 * Default address space (either GGTT or ppGTT depending on arch).
168 * Reserved for exclusive use by the kernel.
170 struct i915_address_space *vm;
173 * A pool of objects to use as shadow copies of client batch buffers
174 * when the command parser is enabled. Prevents the client from
175 * modifying the batch contents after software parsing.
177 * Buffers older than 1s are periodically reaped from the pool,
178 * or may be reclaimed by the shrinker before then.
180 struct intel_gt_buffer_pool buffer_pool;
182 struct i915_vma *scratch;
184 struct intel_migrate migrate;
186 const struct intel_mmio_range *steering_table[NUM_STEERING_TYPES];
194 * Base of per-tile GTTMMADR where we can derive the MMIO and the GGTT.
196 phys_addr_t phys_addr;
198 struct intel_gt_info {
201 intel_engine_mask_t engine_mask;
207 /* General presence of SFC units */
210 /* Media engine access to SFC per instance */
213 /* Slice/subslice/EU info */
214 struct sseu_dev_info sseu;
216 unsigned long mslice_mask;
218 /** @hwconfig: hardware configuration data */
219 struct intel_hwconfig hwconfig;
226 struct intel_pxp pxp;
229 struct kobject sysfs_gt;
232 enum intel_gt_scratch_field {
234 INTEL_GT_SCRATCH_FIELD_DEFAULT = 0,
237 INTEL_GT_SCRATCH_FIELD_RENDER_FLUSH = 128,
240 INTEL_GT_SCRATCH_FIELD_COHERENTL3_WA = 256,
243 INTEL_GT_SCRATCH_FIELD_PERF_CS_GPR = 2048,
246 INTEL_GT_SCRATCH_FIELD_PERF_PREDICATE_RESULT_1 = 2096,
249 #endif /* __INTEL_GT_TYPES_H__ */