drivers/gpu/drm/i915/gvt/gvt.h

   1 /*
   2  * Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors:
  24  *    Kevin Tian <kevin.tian@intel.com>
  25  *    Eddie Dong <eddie.dong@intel.com>
  26  *
  27  * Contributors:
  28  *    Niu Bing <bing.niu@intel.com>
  29  *    Zhi Wang <zhi.a.wang@intel.com>
  30  *
  31  */
  32
  33 #ifndef _GVT_H_
  34 #define _GVT_H_
  35
  36 #include "debug.h"
  37 #include "hypercall.h"
  38 #include "mmio.h"
  39 #include "reg.h"
  40 #include "interrupt.h"
  41 #include "gtt.h"
  42 #include "display.h"
  43 #include "edid.h"
  44 #include "execlist.h"
  45 #include "scheduler.h"
  46 #include "sched_policy.h"
  47 #include "render.h"
  48 #include "cmd_parser.h"
  49
  50 #define GVT_MAX_VGPU 8
  51
  52 enum {
  53         INTEL_GVT_HYPERVISOR_XEN = 0,
  54         INTEL_GVT_HYPERVISOR_KVM,
  55 };
  56
  57 struct intel_gvt_host {
  58         bool initialized;
  59         int hypervisor_type;
  60         struct intel_gvt_mpt *mpt;
  61 };
  62
  63 extern struct intel_gvt_host intel_gvt_host;
  64
  65 /* Describe per-platform limitations. */
  66 struct intel_gvt_device_info {
  67         u32 max_support_vgpus;
  68         u32 cfg_space_size;
  69         u32 mmio_size;
  70         u32 mmio_bar;
  71         unsigned long msi_cap_offset;
  72         u32 gtt_start_offset;
  73         u32 gtt_entry_size;
  74         u32 gtt_entry_size_shift;
  75         int gmadr_bytes_in_cmd;
  76         u32 max_surface_size;
  77 };
  78
  79 /* GM resources owned by a vGPU */
  80 struct intel_vgpu_gm {
  81         u64 aperture_sz;
  82         u64 hidden_sz;
  83         struct drm_mm_node low_gm_node;
  84         struct drm_mm_node high_gm_node;
  85 };
  86
  87 #define INTEL_GVT_MAX_NUM_FENCES 32
  88
  89 /* Fences owned by a vGPU */
  90 struct intel_vgpu_fence {
  91         struct drm_i915_fence_reg *regs[INTEL_GVT_MAX_NUM_FENCES];
  92         u32 base;
  93         u32 size;
  94 };
  95
  96 struct intel_vgpu_mmio {
  97         void *vreg;
  98         void *sreg;
  99         bool disable_warn_untrack;
 100 };
 101
 102 #define INTEL_GVT_MAX_CFG_SPACE_SZ 256
 103 #define INTEL_GVT_MAX_BAR_NUM 4
 104
 105 struct intel_vgpu_pci_bar {
 106         u64 size;
 107         bool tracked;
 108 };
 109
 110 struct intel_vgpu_cfg_space {
 111         unsigned char virtual_cfg_space[INTEL_GVT_MAX_CFG_SPACE_SZ];
 112         struct intel_vgpu_pci_bar bar[INTEL_GVT_MAX_BAR_NUM];
 113 };
 114
 115 #define vgpu_cfg_space(vgpu) ((vgpu)->cfg_space.virtual_cfg_space)
 116
 117 #define INTEL_GVT_MAX_PIPE 4
 118
 119 struct intel_vgpu_irq {
 120         bool irq_warn_once[INTEL_GVT_EVENT_MAX];
 121         DECLARE_BITMAP(flip_done_event[INTEL_GVT_MAX_PIPE],
 122                        INTEL_GVT_EVENT_MAX);
 123 };
 124
 125 struct intel_vgpu_opregion {
 126         void *va;
 127         u32 gfn[INTEL_GVT_OPREGION_PAGES];
 128         struct page *pages[INTEL_GVT_OPREGION_PAGES];
 129 };
 130
 131 #define vgpu_opregion(vgpu) (&(vgpu->opregion))
 132
 133 #define INTEL_GVT_MAX_PORT 5
 134
 135 struct intel_vgpu_display {
 136         struct intel_vgpu_i2c_edid i2c_edid;
 137         struct intel_vgpu_port ports[INTEL_GVT_MAX_PORT];
 138         struct intel_vgpu_sbi sbi;
 139 };
 140
 141 struct vgpu_sched_ctl {
 142         int weight;
 143 };
 144
 145 struct intel_vgpu {
 146         struct intel_gvt *gvt;
 147         int id;
 148         unsigned long handle; /* vGPU handle used by hypervisor MPT modules */
 149         bool active;
 150         bool pv_notified;
 151         bool failsafe;
 152         bool resetting;
 153         void *sched_data;
 154         struct vgpu_sched_ctl sched_ctl;
 155
 156         struct intel_vgpu_fence fence;
 157         struct intel_vgpu_gm gm;
 158         struct intel_vgpu_cfg_space cfg_space;
 159         struct intel_vgpu_mmio mmio;
 160         struct intel_vgpu_irq irq;
 161         struct intel_vgpu_gtt gtt;
 162         struct intel_vgpu_opregion opregion;
 163         struct intel_vgpu_display display;
 164         struct intel_vgpu_execlist execlist[I915_NUM_ENGINES];
 165         struct list_head workload_q_head[I915_NUM_ENGINES];
 166         struct kmem_cache *workloads;
 167         atomic_t running_workload_num;
 168         DECLARE_BITMAP(tlb_handle_pending, I915_NUM_ENGINES);
 169         struct i915_gem_context *shadow_ctx;
 170
 171 #if IS_ENABLED(CONFIG_DRM_I915_GVT_KVMGT)
 172         struct {
 173                 struct mdev_device *mdev;
 174                 struct vfio_region *region;
 175                 int num_regions;
 176                 struct eventfd_ctx *intx_trigger;
 177                 struct eventfd_ctx *msi_trigger;
 178                 struct rb_root cache;
 179                 struct mutex cache_lock;
 180                 struct notifier_block iommu_notifier;
 181                 struct notifier_block group_notifier;
 182                 struct kvm *kvm;
 183                 struct work_struct release_work;
 184                 atomic_t released;
 185         } vdev;
 186 #endif
 187 };
 188
 189 struct intel_gvt_gm {
 190         unsigned long vgpu_allocated_low_gm_size;
 191         unsigned long vgpu_allocated_high_gm_size;
 192 };
 193
 194 struct intel_gvt_fence {
 195         unsigned long vgpu_allocated_fence_num;
 196 };
 197
 198 #define INTEL_GVT_MMIO_HASH_BITS 11
 199
 200 struct intel_gvt_mmio {
 201         u8 *mmio_attribute;
 202 /* Register contains RO bits */
 203 #define F_RO            (1 << 0)
 204 /* Register contains graphics address */
 205 #define F_GMADR         (1 << 1)
 206 /* Mode mask registers with high 16 bits as the mask bits */
 207 #define F_MODE_MASK     (1 << 2)
 208 /* This reg can be accessed by GPU commands */
 209 #define F_CMD_ACCESS    (1 << 3)
 210 /* This reg has been accessed by a VM */
 211 #define F_ACCESSED      (1 << 4)
 212 /* This reg has been accessed through GPU commands */
 213 #define F_CMD_ACCESSED  (1 << 5)
 214 /* This reg could be accessed by unaligned address */
 215 #define F_UNALIGN       (1 << 6)
 216
 217         DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS);
 218         unsigned int num_tracked_mmio;
 219 };
 220
 221 struct intel_gvt_firmware {
 222         void *cfg_space;
 223         void *mmio;
 224         bool firmware_loaded;
 225 };
 226
 227 struct intel_gvt_opregion {
 228         void *opregion_va;
 229         u32 opregion_pa;
 230 };
 231
 232 #define NR_MAX_INTEL_VGPU_TYPES 20
 233 struct intel_vgpu_type {
 234         char name[16];
 235         unsigned int avail_instance;
 236         unsigned int low_gm_size;
 237         unsigned int high_gm_size;
 238         unsigned int fence;
 239         unsigned int weight;
 240         enum intel_vgpu_edid resolution;
 241 };
 242
 243 struct intel_gvt {
 244         struct mutex lock;
 245         struct drm_i915_private *dev_priv;
 246         struct idr vgpu_idr;    /* vGPU IDR pool */
 247
 248         struct intel_gvt_device_info device_info;
 249         struct intel_gvt_gm gm;
 250         struct intel_gvt_fence fence;
 251         struct intel_gvt_mmio mmio;
 252         struct intel_gvt_firmware firmware;
 253         struct intel_gvt_irq irq;
 254         struct intel_gvt_gtt gtt;
 255         struct intel_gvt_opregion opregion;
 256         struct intel_gvt_workload_scheduler scheduler;
 257         struct notifier_block shadow_ctx_notifier_block[I915_NUM_ENGINES];
 258         DECLARE_HASHTABLE(cmd_table, GVT_CMD_HASH_BITS);
 259         struct intel_vgpu_type *types;
 260         unsigned int num_types;
 261         struct intel_vgpu *idle_vgpu;
 262
 263         struct task_struct *service_thread;
 264         wait_queue_head_t service_thread_wq;
 265         unsigned long service_request;
 266 };
 267
 268 static inline struct intel_gvt *to_gvt(struct drm_i915_private *i915)
 269 {
 270         return i915->gvt;
 271 }
 272
 273 enum {
 274         INTEL_GVT_REQUEST_EMULATE_VBLANK = 0,
 275
 276         /* Scheduling trigger by timer */
 277         INTEL_GVT_REQUEST_SCHED = 1,
 278
 279         /* Scheduling trigger by event */
 280         INTEL_GVT_REQUEST_EVENT_SCHED = 2,
 281 };
 282
 283 static inline void intel_gvt_request_service(struct intel_gvt *gvt,
 284                 int service)
 285 {
 286         set_bit(service, (void *)&gvt->service_request);
 287         wake_up(&gvt->service_thread_wq);
 288 }
 289
 290 void intel_gvt_free_firmware(struct intel_gvt *gvt);
 291 int intel_gvt_load_firmware(struct intel_gvt *gvt);
 292
 293 /* Aperture/GM space definitions for GVT device */
 294 #define MB_TO_BYTES(mb) ((mb) << 20ULL)
 295 #define BYTES_TO_MB(b) ((b) >> 20ULL)
 296
 297 #define HOST_LOW_GM_SIZE MB_TO_BYTES(128)
 298 #define HOST_HIGH_GM_SIZE MB_TO_BYTES(384)
 299 #define HOST_FENCE 4
 300
 301 /* Aperture/GM space definitions for GVT device */
 302 #define gvt_aperture_sz(gvt)      (gvt->dev_priv->ggtt.mappable_end)
 303 #define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.mappable_base)
 304
 305 #define gvt_ggtt_gm_sz(gvt)       (gvt->dev_priv->ggtt.base.total)
 306 #define gvt_ggtt_sz(gvt) \
 307         ((gvt->dev_priv->ggtt.base.total >> PAGE_SHIFT) << 3)
 308 #define gvt_hidden_sz(gvt)        (gvt_ggtt_gm_sz(gvt) - gvt_aperture_sz(gvt))
 309
 310 #define gvt_aperture_gmadr_base(gvt) (0)
 311 #define gvt_aperture_gmadr_end(gvt) (gvt_aperture_gmadr_base(gvt) \
 312                                      + gvt_aperture_sz(gvt) - 1)
 313
 314 #define gvt_hidden_gmadr_base(gvt) (gvt_aperture_gmadr_base(gvt) \
 315                                     + gvt_aperture_sz(gvt))
 316 #define gvt_hidden_gmadr_end(gvt) (gvt_hidden_gmadr_base(gvt) \
 317                                    + gvt_hidden_sz(gvt) - 1)
 318
 319 #define gvt_fence_sz(gvt) (gvt->dev_priv->num_fence_regs)
 320
 321 /* Aperture/GM space definitions for vGPU */
 322 #define vgpu_aperture_offset(vgpu)      ((vgpu)->gm.low_gm_node.start)
 323 #define vgpu_hidden_offset(vgpu)        ((vgpu)->gm.high_gm_node.start)
 324 #define vgpu_aperture_sz(vgpu)          ((vgpu)->gm.aperture_sz)
 325 #define vgpu_hidden_sz(vgpu)            ((vgpu)->gm.hidden_sz)
 326
 327 #define vgpu_aperture_pa_base(vgpu) \
 328         (gvt_aperture_pa_base(vgpu->gvt) + vgpu_aperture_offset(vgpu))
 329
 330 #define vgpu_ggtt_gm_sz(vgpu) ((vgpu)->gm.aperture_sz + (vgpu)->gm.hidden_sz)
 331
 332 #define vgpu_aperture_pa_end(vgpu) \
 333         (vgpu_aperture_pa_base(vgpu) + vgpu_aperture_sz(vgpu) - 1)
 334
 335 #define vgpu_aperture_gmadr_base(vgpu) (vgpu_aperture_offset(vgpu))
 336 #define vgpu_aperture_gmadr_end(vgpu) \
 337         (vgpu_aperture_gmadr_base(vgpu) + vgpu_aperture_sz(vgpu) - 1)
 338
 339 #define vgpu_hidden_gmadr_base(vgpu) (vgpu_hidden_offset(vgpu))
 340 #define vgpu_hidden_gmadr_end(vgpu) \
 341         (vgpu_hidden_gmadr_base(vgpu) + vgpu_hidden_sz(vgpu) - 1)
 342
 343 #define vgpu_fence_base(vgpu) (vgpu->fence.base)
 344 #define vgpu_fence_sz(vgpu) (vgpu->fence.size)
 345
 346 struct intel_vgpu_creation_params {
 347         __u64 handle;
 348         __u64 low_gm_sz;  /* in MB */
 349         __u64 high_gm_sz; /* in MB */
 350         __u64 fence_sz;
 351         __u64 resolution;
 352         __s32 primary;
 353         __u64 vgpu_id;
 354
 355         __u32 weight;
 356 };
 357
 358 int intel_vgpu_alloc_resource(struct intel_vgpu *vgpu,
 359                               struct intel_vgpu_creation_params *param);
 360 void intel_vgpu_reset_resource(struct intel_vgpu *vgpu);
 361 void intel_vgpu_free_resource(struct intel_vgpu *vgpu);
 362 void intel_vgpu_write_fence(struct intel_vgpu *vgpu,
 363         u32 fence, u64 value);
 364
 365 /* Macros for easily accessing vGPU virtual/shadow register */
 366 #define vgpu_vreg(vgpu, reg) \
 367         (*(u32 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
 368 #define vgpu_vreg8(vgpu, reg) \
 369         (*(u8 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
 370 #define vgpu_vreg16(vgpu, reg) \
 371         (*(u16 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
 372 #define vgpu_vreg64(vgpu, reg) \
 373         (*(u64 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg)))
 374 #define vgpu_sreg(vgpu, reg) \
 375         (*(u32 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
 376 #define vgpu_sreg8(vgpu, reg) \
 377         (*(u8 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
 378 #define vgpu_sreg16(vgpu, reg) \
 379         (*(u16 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
 380 #define vgpu_sreg64(vgpu, reg) \
 381         (*(u64 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg)))
 382
 383 #define for_each_active_vgpu(gvt, vgpu, id) \
 384         idr_for_each_entry((&(gvt)->vgpu_idr), (vgpu), (id)) \
 385                 for_each_if(vgpu->active)
 386
 387 static inline void intel_vgpu_write_pci_bar(struct intel_vgpu *vgpu,
 388                                             u32 offset, u32 val, bool low)
 389 {
 390         u32 *pval;
 391
 392         /* BAR offset should be 32 bits algiend */
 393         offset = rounddown(offset, 4);
 394         pval = (u32 *)(vgpu_cfg_space(vgpu) + offset);
 395
 396         if (low) {
 397                 /*
 398                  * only update bit 31 - bit 4,
 399                  * leave the bit 3 - bit 0 unchanged.
 400                  */
 401                 *pval = (val & GENMASK(31, 4)) | (*pval & GENMASK(3, 0));
 402         } else {
 403                 *pval = val;
 404         }
 405 }
 406
 407 int intel_gvt_init_vgpu_types(struct intel_gvt *gvt);
 408 void intel_gvt_clean_vgpu_types(struct intel_gvt *gvt);
 409
 410 struct intel_vgpu *intel_gvt_create_idle_vgpu(struct intel_gvt *gvt);
 411 void intel_gvt_destroy_idle_vgpu(struct intel_vgpu *vgpu);
 412 struct intel_vgpu *intel_gvt_create_vgpu(struct intel_gvt *gvt,
 413                                          struct intel_vgpu_type *type);
 414 void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu);
 415 void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr,
 416                                  unsigned int engine_mask);
 417 void intel_gvt_reset_vgpu(struct intel_vgpu *vgpu);
 418 void intel_gvt_activate_vgpu(struct intel_vgpu *vgpu);
 419 void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu);
 420
 421 /* validating GM functions */
 422 #define vgpu_gmadr_is_aperture(vgpu, gmadr) \
 423         ((gmadr >= vgpu_aperture_gmadr_base(vgpu)) && \
 424          (gmadr <= vgpu_aperture_gmadr_end(vgpu)))
 425
 426 #define vgpu_gmadr_is_hidden(vgpu, gmadr) \
 427         ((gmadr >= vgpu_hidden_gmadr_base(vgpu)) && \
 428          (gmadr <= vgpu_hidden_gmadr_end(vgpu)))
 429
 430 #define vgpu_gmadr_is_valid(vgpu, gmadr) \
 431          ((vgpu_gmadr_is_aperture(vgpu, gmadr) || \
 432           (vgpu_gmadr_is_hidden(vgpu, gmadr))))
 433
 434 #define gvt_gmadr_is_aperture(gvt, gmadr) \
 435          ((gmadr >= gvt_aperture_gmadr_base(gvt)) && \
 436           (gmadr <= gvt_aperture_gmadr_end(gvt)))
 437
 438 #define gvt_gmadr_is_hidden(gvt, gmadr) \
 439           ((gmadr >= gvt_hidden_gmadr_base(gvt)) && \
 440            (gmadr <= gvt_hidden_gmadr_end(gvt)))
 441
 442 #define gvt_gmadr_is_valid(gvt, gmadr) \
 443           (gvt_gmadr_is_aperture(gvt, gmadr) || \
 444             gvt_gmadr_is_hidden(gvt, gmadr))
 445
 446 bool intel_gvt_ggtt_validate_range(struct intel_vgpu *vgpu, u64 addr, u32 size);
 447 int intel_gvt_ggtt_gmadr_g2h(struct intel_vgpu *vgpu, u64 g_addr, u64 *h_addr);
 448 int intel_gvt_ggtt_gmadr_h2g(struct intel_vgpu *vgpu, u64 h_addr, u64 *g_addr);
 449 int intel_gvt_ggtt_index_g2h(struct intel_vgpu *vgpu, unsigned long g_index,
 450                              unsigned long *h_index);
 451 int intel_gvt_ggtt_h2g_index(struct intel_vgpu *vgpu, unsigned long h_index,
 452                              unsigned long *g_index);
 453
 454 void intel_vgpu_init_cfg_space(struct intel_vgpu *vgpu,
 455                 bool primary);
 456 void intel_vgpu_reset_cfg_space(struct intel_vgpu *vgpu);
 457
 458 int intel_vgpu_emulate_cfg_read(struct intel_vgpu *vgpu, unsigned int offset,
 459                 void *p_data, unsigned int bytes);
 460
 461 int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset,
 462                 void *p_data, unsigned int bytes);
 463
 464 void intel_gvt_clean_opregion(struct intel_gvt *gvt);
 465 int intel_gvt_init_opregion(struct intel_gvt *gvt);
 466
 467 void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu);
 468 int intel_vgpu_init_opregion(struct intel_vgpu *vgpu, u32 gpa);
 469
 470 int intel_vgpu_emulate_opregion_request(struct intel_vgpu *vgpu, u32 swsci);
 471 void populate_pvinfo_page(struct intel_vgpu *vgpu);
 472
 473 struct intel_gvt_ops {
 474         int (*emulate_cfg_read)(struct intel_vgpu *, unsigned int, void *,
 475                                 unsigned int);
 476         int (*emulate_cfg_write)(struct intel_vgpu *, unsigned int, void *,
 477                                 unsigned int);
 478         int (*emulate_mmio_read)(struct intel_vgpu *, u64, void *,
 479                                 unsigned int);
 480         int (*emulate_mmio_write)(struct intel_vgpu *, u64, void *,
 481                                 unsigned int);
 482         struct intel_vgpu *(*vgpu_create)(struct intel_gvt *,
 483                                 struct intel_vgpu_type *);
 484         void (*vgpu_destroy)(struct intel_vgpu *);
 485         void (*vgpu_reset)(struct intel_vgpu *);
 486         void (*vgpu_activate)(struct intel_vgpu *);
 487         void (*vgpu_deactivate)(struct intel_vgpu *);
 488 };
 489
 490
 491 enum {
 492         GVT_FAILSAFE_UNSUPPORTED_GUEST,
 493         GVT_FAILSAFE_INSUFFICIENT_RESOURCE,
 494 };
 495
 496 static inline void mmio_hw_access_pre(struct drm_i915_private *dev_priv)
 497 {
 498         intel_runtime_pm_get(dev_priv);
 499 }
 500
 501 static inline void mmio_hw_access_post(struct drm_i915_private *dev_priv)
 502 {
 503         intel_runtime_pm_put(dev_priv);
 504 }
 505
 506 /**
 507  * intel_gvt_mmio_set_accessed - mark a MMIO has been accessed
 508  * @gvt: a GVT device
 509  * @offset: register offset
 510  *
 511  */
 512 static inline void intel_gvt_mmio_set_accessed(
 513                         struct intel_gvt *gvt, unsigned int offset)
 514 {
 515         gvt->mmio.mmio_attribute[offset >> 2] |= F_ACCESSED;
 516 }
 517
 518 /**
 519  * intel_gvt_mmio_is_cmd_accessed - mark a MMIO could be accessed by command
 520  * @gvt: a GVT device
 521  * @offset: register offset
 522  *
 523  */
 524 static inline bool intel_gvt_mmio_is_cmd_access(
 525                         struct intel_gvt *gvt, unsigned int offset)
 526 {
 527         return gvt->mmio.mmio_attribute[offset >> 2] & F_CMD_ACCESS;
 528 }
 529
 530 /**
 531  * intel_gvt_mmio_is_unalign - mark a MMIO could be accessed unaligned
 532  * @gvt: a GVT device
 533  * @offset: register offset
 534  *
 535  */
 536 static inline bool intel_gvt_mmio_is_unalign(
 537                         struct intel_gvt *gvt, unsigned int offset)
 538 {
 539         return gvt->mmio.mmio_attribute[offset >> 2] & F_UNALIGN;
 540 }
 541
 542 /**
 543  * intel_gvt_mmio_set_cmd_accessed - mark a MMIO has been accessed by command
 544  * @gvt: a GVT device
 545  * @offset: register offset
 546  *
 547  */
 548 static inline void intel_gvt_mmio_set_cmd_accessed(
 549                         struct intel_gvt *gvt, unsigned int offset)
 550 {
 551         gvt->mmio.mmio_attribute[offset >> 2] |= F_CMD_ACCESSED;
 552 }
 553
 554 /**
 555  * intel_gvt_mmio_has_mode_mask - if a MMIO has a mode mask
 556  * @gvt: a GVT device
 557  * @offset: register offset
 558  *
 559  * Returns:
 560  * True if a MMIO has a mode mask in its higher 16 bits, false if it isn't.
 561  *
 562  */
 563 static inline bool intel_gvt_mmio_has_mode_mask(
 564                         struct intel_gvt *gvt, unsigned int offset)
 565 {
 566         return gvt->mmio.mmio_attribute[offset >> 2] & F_MODE_MASK;
 567 }
 568
 569 #include "trace.h"
 570 #include "mpt.h"
 571
 572 #endif