tjh.dev
Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: MIT */
2/*
3 * Copyright © 2021 Intel Corporation
4 */
5
6#ifndef _XE_DEVICE_H_
7#define _XE_DEVICE_H_
8
9#include <drm/drm_util.h>
10
11#include "xe_device_types.h"
12
13static inline struct xe_device *to_xe_device(const struct drm_device *dev)
14{
15 return container_of(dev, struct xe_device, drm);
16}
17
18static inline struct xe_device *kdev_to_xe_device(struct device *kdev)
19{
20 struct drm_device *drm = dev_get_drvdata(kdev);
21
22 return drm ? to_xe_device(drm) : NULL;
23}
24
25static inline struct xe_device *pdev_to_xe_device(struct pci_dev *pdev)
26{
27 struct drm_device *drm = pci_get_drvdata(pdev);
28
29 return drm ? to_xe_device(drm) : NULL;
30}
31
32static inline struct xe_device *xe_device_const_cast(const struct xe_device *xe)
33{
34 return (struct xe_device *)xe;
35}
36
37static inline struct xe_device *ttm_to_xe_device(struct ttm_device *ttm)
38{
39 return container_of(ttm, struct xe_device, ttm);
40}
41
42struct xe_device *xe_device_create(struct pci_dev *pdev,
43 const struct pci_device_id *ent);
44int xe_device_probe_early(struct xe_device *xe);
45int xe_device_probe(struct xe_device *xe);
46void xe_device_remove(struct xe_device *xe);
47void xe_device_shutdown(struct xe_device *xe);
48
49void xe_device_wmb(struct xe_device *xe);
50
51static inline struct xe_file *to_xe_file(const struct drm_file *file)
52{
53 return file->driver_priv;
54}
55
56static inline struct xe_tile *xe_device_get_root_tile(struct xe_device *xe)
57{
58 return &xe->tiles[0];
59}
60
61#define XE_MAX_GT_PER_TILE 2
62
63static inline struct xe_gt *xe_tile_get_gt(struct xe_tile *tile, u8 gt_id)
64{
65 if (drm_WARN_ON(&tile_to_xe(tile)->drm, gt_id >= XE_MAX_GT_PER_TILE))
66 gt_id = 0;
67
68 return gt_id ? tile->media_gt : tile->primary_gt;
69}
70
71static inline struct xe_gt *xe_device_get_gt(struct xe_device *xe, u8 gt_id)
72{
73 struct xe_tile *root_tile = xe_device_get_root_tile(xe);
74 struct xe_gt *gt;
75
76 /*
77 * FIXME: This only works for now because multi-tile and standalone
78 * media are mutually exclusive on the platforms we have today.
79 *
80 * id => GT mapping may change once we settle on how we want to handle
81 * our UAPI.
82 */
83 if (MEDIA_VER(xe) >= 13) {
84 gt = xe_tile_get_gt(root_tile, gt_id);
85 } else {
86 if (drm_WARN_ON(&xe->drm, gt_id >= XE_MAX_TILES_PER_DEVICE))
87 gt_id = 0;
88
89 gt = xe->tiles[gt_id].primary_gt;
90 }
91
92 if (!gt)
93 return NULL;
94
95 drm_WARN_ON(&xe->drm, gt->info.id != gt_id);
96 drm_WARN_ON(&xe->drm, gt->info.type == XE_GT_TYPE_UNINITIALIZED);
97
98 return gt;
99}
100
101/*
102 * Provide a GT structure suitable for performing non-GT MMIO operations against
103 * the primary tile. Primarily intended for early tile initialization, display
104 * handling, top-most interrupt enable/disable, etc. Since anything using the
105 * MMIO handle returned by this function doesn't need GSI offset translation,
106 * we'll return the primary GT from the root tile.
107 *
108 * FIXME: Fix the driver design so that 'gt' isn't the target of all MMIO
109 * operations.
110 *
111 * Returns the primary gt of the root tile.
112 */
113static inline struct xe_gt *xe_root_mmio_gt(struct xe_device *xe)
114{
115 return xe_device_get_root_tile(xe)->primary_gt;
116}
117
118static inline bool xe_device_uc_enabled(struct xe_device *xe)
119{
120 return !xe->info.force_execlist;
121}
122
123#define for_each_tile(tile__, xe__, id__) \
124 for ((id__) = 0; (id__) < (xe__)->info.tile_count; (id__)++) \
125 for_each_if((tile__) = &(xe__)->tiles[(id__)])
126
127#define for_each_remote_tile(tile__, xe__, id__) \
128 for ((id__) = 1; (id__) < (xe__)->info.tile_count; (id__)++) \
129 for_each_if((tile__) = &(xe__)->tiles[(id__)])
130
131/*
132 * FIXME: This only works for now since multi-tile and standalone media
133 * happen to be mutually exclusive. Future platforms may change this...
134 */
135#define for_each_gt(gt__, xe__, id__) \
136 for ((id__) = 0; (id__) < (xe__)->info.gt_count; (id__)++) \
137 for_each_if((gt__) = xe_device_get_gt((xe__), (id__)))
138
139static inline struct xe_force_wake *gt_to_fw(struct xe_gt *gt)
140{
141 return >->mmio.fw;
142}
143
144void xe_device_assert_mem_access(struct xe_device *xe);
145
146static inline bool xe_device_has_flat_ccs(struct xe_device *xe)
147{
148 return xe->info.has_flat_ccs;
149}
150
151static inline bool xe_device_has_sriov(struct xe_device *xe)
152{
153 return xe->info.has_sriov;
154}
155
156static inline bool xe_device_has_memirq(struct xe_device *xe)
157{
158 return GRAPHICS_VERx100(xe) >= 1250;
159}
160
161u32 xe_device_ccs_bytes(struct xe_device *xe, u64 size);
162
163void xe_device_snapshot_print(struct xe_device *xe, struct drm_printer *p);
164
165u64 xe_device_canonicalize_addr(struct xe_device *xe, u64 address);
166u64 xe_device_uncanonicalize_addr(struct xe_device *xe, u64 address);
167
168void xe_device_td_flush(struct xe_device *xe);
169void xe_device_l2_flush(struct xe_device *xe);
170
171static inline bool xe_device_wedged(struct xe_device *xe)
172{
173 return atomic_read(&xe->wedged.flag);
174}
175
176void xe_device_declare_wedged(struct xe_device *xe);
177
178struct xe_file *xe_file_get(struct xe_file *xef);
179void xe_file_put(struct xe_file *xef);
180
181#endif