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 #include "xe_gt_types.h" 13 #include "xe_sriov.h" 14 15 static inline struct xe_device *to_xe_device(const struct drm_device *dev) 16 { 17 return container_of(dev, struct xe_device, drm); 18 } 19 20 static inline struct xe_device *kdev_to_xe_device(struct device *kdev) 21 { 22 struct drm_device *drm = dev_get_drvdata(kdev); 23 24 return drm ? to_xe_device(drm) : NULL; 25 } 26 27 static inline struct xe_device *pdev_to_xe_device(struct pci_dev *pdev) 28 { 29 struct drm_device *drm = pci_get_drvdata(pdev); 30 31 return drm ? to_xe_device(drm) : NULL; 32 } 33 34 static inline struct xe_device *xe_device_const_cast(const struct xe_device *xe) 35 { 36 return (struct xe_device *)xe; 37 } 38 39 static inline struct xe_device *ttm_to_xe_device(struct ttm_device *ttm) 40 { 41 return container_of(ttm, struct xe_device, ttm); 42 } 43 44 struct xe_device *xe_device_create(struct pci_dev *pdev, 45 const struct pci_device_id *ent); 46 int xe_device_probe_early(struct xe_device *xe); 47 int xe_device_probe(struct xe_device *xe); 48 void xe_device_remove(struct xe_device *xe); 49 void xe_device_shutdown(struct xe_device *xe); 50 51 void xe_device_wmb(struct xe_device *xe); 52 53 static inline struct xe_file *to_xe_file(const struct drm_file *file) 54 { 55 return file->driver_priv; 56 } 57 58 static inline struct xe_tile *xe_device_get_root_tile(struct xe_device *xe) 59 { 60 return &xe->tiles[0]; 61 } 62 63 /* 64 * Highest GT/tile count for any platform. Used only for memory allocation 65 * sizing. Any logic looping over GTs or mapping userspace GT IDs into GT 66 * structures should use the per-platform xe->info.max_gt_per_tile instead. 67 */ 68 #define XE_MAX_GT_PER_TILE 2 69 70 static inline struct xe_gt *xe_device_get_gt(struct xe_device *xe, u8 gt_id) 71 { 72 struct xe_tile *tile; 73 struct xe_gt *gt; 74 75 if (gt_id >= xe->info.tile_count * xe->info.max_gt_per_tile) 76 return NULL; 77 78 tile = &xe->tiles[gt_id / xe->info.max_gt_per_tile]; 79 switch (gt_id % xe->info.max_gt_per_tile) { 80 default: 81 xe_assert(xe, false); 82 fallthrough; 83 case 0: 84 gt = tile->primary_gt; 85 break; 86 case 1: 87 gt = tile->media_gt; 88 break; 89 } 90 91 if (!gt) 92 return NULL; 93 94 drm_WARN_ON(&xe->drm, gt->info.id != gt_id); 95 drm_WARN_ON(&xe->drm, gt->info.type == XE_GT_TYPE_UNINITIALIZED); 96 97 return gt; 98 } 99 100 /* 101 * Provide a GT structure suitable for performing non-GT MMIO operations against 102 * the primary tile. Primarily intended for early tile initialization, display 103 * handling, top-most interrupt enable/disable, etc. Since anything using the 104 * MMIO handle returned by this function doesn't need GSI offset translation, 105 * we'll return the primary GT from the root tile. 106 * 107 * FIXME: Fix the driver design so that 'gt' isn't the target of all MMIO 108 * operations. 109 * 110 * Returns the primary gt of the root tile. 111 */ 112 static inline struct xe_gt *xe_root_mmio_gt(struct xe_device *xe) 113 { 114 return xe_device_get_root_tile(xe)->primary_gt; 115 } 116 117 static inline bool xe_device_uc_enabled(struct xe_device *xe) 118 { 119 return !xe->info.force_execlist; 120 } 121 122 #define for_each_tile(tile__, xe__, id__) \ 123 for ((id__) = 0; (id__) < (xe__)->info.tile_count; (id__)++) \ 124 for_each_if((tile__) = &(xe__)->tiles[(id__)]) 125 126 #define for_each_remote_tile(tile__, xe__, id__) \ 127 for ((id__) = 1; (id__) < (xe__)->info.tile_count; (id__)++) \ 128 for_each_if((tile__) = &(xe__)->tiles[(id__)]) 129 130 #define for_each_gt(gt__, xe__, id__) \ 131 for ((id__) = 0; (id__) < (xe__)->info.tile_count * (xe__)->info.max_gt_per_tile; (id__)++) \ 132 for_each_if((gt__) = xe_device_get_gt((xe__), (id__))) 133 134 #define for_each_gt_on_tile(gt__, tile__, id__) \ 135 for_each_gt((gt__), (tile__)->xe, (id__)) \ 136 for_each_if((gt__)->tile == (tile__)) 137 138 static inline struct xe_force_wake *gt_to_fw(struct xe_gt *gt) 139 { 140 return >->pm.fw; 141 } 142 143 void xe_device_assert_mem_access(struct xe_device *xe); 144 145 static inline bool xe_device_has_flat_ccs(struct xe_device *xe) 146 { 147 return xe->info.has_flat_ccs; 148 } 149 150 static inline bool xe_device_has_sriov(struct xe_device *xe) 151 { 152 return xe->info.has_sriov; 153 } 154 155 static inline bool xe_device_has_msix(struct xe_device *xe) 156 { 157 return xe->irq.msix.nvec > 0; 158 } 159 160 static inline bool xe_device_has_memirq(struct xe_device *xe) 161 { 162 return GRAPHICS_VERx100(xe) >= 1250; 163 } 164 165 static inline bool xe_device_uses_memirq(struct xe_device *xe) 166 { 167 return xe_device_has_memirq(xe) && (IS_SRIOV_VF(xe) || xe_device_has_msix(xe)); 168 } 169 170 static inline bool xe_device_has_lmtt(struct xe_device *xe) 171 { 172 return IS_DGFX(xe); 173 } 174 175 u32 xe_device_ccs_bytes(struct xe_device *xe, u64 size); 176 177 void xe_device_snapshot_print(struct xe_device *xe, struct drm_printer *p); 178 179 u64 xe_device_canonicalize_addr(struct xe_device *xe, u64 address); 180 u64 xe_device_uncanonicalize_addr(struct xe_device *xe, u64 address); 181 182 void xe_device_td_flush(struct xe_device *xe); 183 void xe_device_l2_flush(struct xe_device *xe); 184 185 static inline bool xe_device_wedged(struct xe_device *xe) 186 { 187 return atomic_read(&xe->wedged.flag); 188 } 189 190 void xe_device_declare_wedged(struct xe_device *xe); 191 192 struct xe_file *xe_file_get(struct xe_file *xef); 193 void xe_file_put(struct xe_file *xef); 194 195 int xe_is_injection_active(void); 196 197 /* 198 * Occasionally it is seen that the G2H worker starts running after a delay of more than 199 * a second even after being queued and activated by the Linux workqueue subsystem. This 200 * leads to G2H timeout error. The root cause of issue lies with scheduling latency of 201 * Lunarlake Hybrid CPU. Issue disappears if we disable Lunarlake atom cores from BIOS 202 * and this is beyond xe kmd. 203 * 204 * TODO: Drop this change once workqueue scheduling delay issue is fixed on LNL Hybrid CPU. 205 */ 206 #define LNL_FLUSH_WORKQUEUE(wq__) \ 207 flush_workqueue(wq__) 208 #define LNL_FLUSH_WORK(wrk__) \ 209 flush_work(wrk__) 210 211 #endif 212