diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/gvt.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gvt.h | 504 |
1 files changed, 346 insertions, 158 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index 3a74e79eac2f..1d10c16e6465 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -33,8 +33,16 @@ #ifndef _GVT_H_ #define _GVT_H_ +#include <uapi/linux/pci_regs.h> +#include <linux/vfio.h> +#include <linux/mdev.h> + +#include <asm/kvm_page_track.h> + +#include "gt/intel_gt.h" +#include "intel_gvt.h" + #include "debug.h" -#include "hypercall.h" #include "mmio.h" #include "reg.h" #include "interrupt.h" @@ -44,23 +52,15 @@ #include "execlist.h" #include "scheduler.h" #include "sched_policy.h" -#include "render.h" +#include "mmio_context.h" #include "cmd_parser.h" +#include "fb_decoder.h" +#include "dmabuf.h" +#include "page_track.h" #define GVT_MAX_VGPU 8 -enum { - INTEL_GVT_HYPERVISOR_XEN = 0, - INTEL_GVT_HYPERVISOR_KVM, -}; - -struct intel_gvt_host { - bool initialized; - int hypervisor_type; - struct intel_gvt_mpt *mpt; -}; - -extern struct intel_gvt_host intel_gvt_host; +struct engine_mmio; /* Describe per-platform limitations. */ struct intel_gvt_device_info { @@ -88,18 +88,14 @@ struct intel_vgpu_gm { /* Fences owned by a vGPU */ struct intel_vgpu_fence { - struct drm_i915_fence_reg *regs[INTEL_GVT_MAX_NUM_FENCES]; - u32 base; + struct i915_fence_reg *regs[INTEL_GVT_MAX_NUM_FENCES]; u32 size; }; struct intel_vgpu_mmio { void *vreg; - void *sreg; - bool disable_warn_untrack; }; -#define INTEL_GVT_MAX_CFG_SPACE_SZ 256 #define INTEL_GVT_MAX_BAR_NUM 4 struct intel_vgpu_pci_bar { @@ -108,48 +104,95 @@ struct intel_vgpu_pci_bar { }; struct intel_vgpu_cfg_space { - unsigned char virtual_cfg_space[INTEL_GVT_MAX_CFG_SPACE_SZ]; + unsigned char virtual_cfg_space[PCI_CFG_SPACE_EXP_SIZE]; struct intel_vgpu_pci_bar bar[INTEL_GVT_MAX_BAR_NUM]; + u32 pmcsr_off; }; #define vgpu_cfg_space(vgpu) ((vgpu)->cfg_space.virtual_cfg_space) -#define INTEL_GVT_MAX_PIPE 4 - struct intel_vgpu_irq { bool irq_warn_once[INTEL_GVT_EVENT_MAX]; - DECLARE_BITMAP(flip_done_event[INTEL_GVT_MAX_PIPE], + DECLARE_BITMAP(flip_done_event[I915_MAX_PIPES], INTEL_GVT_EVENT_MAX); }; struct intel_vgpu_opregion { void *va; u32 gfn[INTEL_GVT_OPREGION_PAGES]; - struct page *pages[INTEL_GVT_OPREGION_PAGES]; }; #define vgpu_opregion(vgpu) (&(vgpu->opregion)) -#define INTEL_GVT_MAX_PORT 5 - struct intel_vgpu_display { struct intel_vgpu_i2c_edid i2c_edid; - struct intel_vgpu_port ports[INTEL_GVT_MAX_PORT]; + struct intel_vgpu_port ports[I915_MAX_PORTS]; struct intel_vgpu_sbi sbi; + enum port port_num; }; struct vgpu_sched_ctl { int weight; }; +enum { + INTEL_VGPU_EXECLIST_SUBMISSION = 1, + INTEL_VGPU_GUC_SUBMISSION, +}; + +struct intel_vgpu_submission_ops { + const char *name; + int (*init)(struct intel_vgpu *vgpu, intel_engine_mask_t engine_mask); + void (*clean)(struct intel_vgpu *vgpu, intel_engine_mask_t engine_mask); + void (*reset)(struct intel_vgpu *vgpu, intel_engine_mask_t engine_mask); +}; + +struct intel_vgpu_submission { + struct intel_vgpu_execlist execlist[I915_NUM_ENGINES]; + struct list_head workload_q_head[I915_NUM_ENGINES]; + struct intel_context *shadow[I915_NUM_ENGINES]; + struct kmem_cache *workloads; + atomic_t running_workload_num; + union { + u64 i915_context_pml4; + u64 i915_context_pdps[GEN8_3LVL_PDPES]; + }; + DECLARE_BITMAP(shadow_ctx_desc_updated, I915_NUM_ENGINES); + DECLARE_BITMAP(tlb_handle_pending, I915_NUM_ENGINES); + void *ring_scan_buffer[I915_NUM_ENGINES]; + int ring_scan_buffer_size[I915_NUM_ENGINES]; + const struct intel_vgpu_submission_ops *ops; + int virtual_submission_interface; + bool active; + struct { + u32 lrca; + bool valid; + u64 ring_context_gpa; + } last_ctx[I915_NUM_ENGINES]; +}; + +#define KVMGT_DEBUGFS_FILENAME "kvmgt_nr_cache_entries" + +enum { + INTEL_VGPU_STATUS_ATTACHED = 0, + INTEL_VGPU_STATUS_ACTIVE, + INTEL_VGPU_STATUS_NR_BITS, +}; + struct intel_vgpu { + struct vfio_device vfio_device; struct intel_gvt *gvt; + struct mutex vgpu_lock; int id; - unsigned long handle; /* vGPU handle used by hypervisor MPT modules */ - bool active; + DECLARE_BITMAP(status, INTEL_VGPU_STATUS_NR_BITS); bool pv_notified; bool failsafe; - bool resetting; + unsigned int resetting_eng; + + /* Both sched_data and sched_ctl can be seen a part of the global gvt + * scheduler structure. So below 2 vgpu data are protected + * by sched_lock, not vgpu_lock. + */ void *sched_data; struct vgpu_sched_ctl sched_ctl; @@ -161,31 +204,44 @@ struct intel_vgpu { struct intel_vgpu_gtt gtt; struct intel_vgpu_opregion opregion; struct intel_vgpu_display display; - struct intel_vgpu_execlist execlist[I915_NUM_ENGINES]; - struct list_head workload_q_head[I915_NUM_ENGINES]; - struct kmem_cache *workloads; - atomic_t running_workload_num; - DECLARE_BITMAP(tlb_handle_pending, I915_NUM_ENGINES); - struct i915_gem_context *shadow_ctx; - -#if IS_ENABLED(CONFIG_DRM_I915_GVT_KVMGT) - struct { - struct mdev_device *mdev; - struct vfio_region *region; - int num_regions; - struct eventfd_ctx *intx_trigger; - struct eventfd_ctx *msi_trigger; - struct rb_root cache; - struct mutex cache_lock; - struct notifier_block iommu_notifier; - struct notifier_block group_notifier; - struct kvm *kvm; - struct work_struct release_work; - atomic_t released; - } vdev; -#endif + struct intel_vgpu_submission submission; + struct radix_tree_root page_track_tree; + u32 hws_pga[I915_NUM_ENGINES]; + /* Set on PCI_D3, reset on DMLR, not reflecting the actual PM state */ + bool d3_entered; + + struct dentry *debugfs; + + struct list_head dmabuf_obj_list_head; + struct mutex dmabuf_lock; + struct idr object_idr; + struct intel_vgpu_vblank_timer vblank_timer; + + u32 scan_nonprivbb; + + struct vfio_region *region; + int num_regions; + struct eventfd_ctx *msi_trigger; + + /* + * Two caches are used to avoid mapping duplicated pages (eg. + * scratch pages). This help to reduce dma setup overhead. + */ + struct rb_root gfn_cache; + struct rb_root dma_addr_cache; + unsigned long nr_cache_entries; + struct mutex cache_lock; + + struct kvm_page_track_notifier_node track_node; +#define NR_BKT (1 << 18) + struct hlist_head ptable[NR_BKT]; +#undef NR_BKT }; +/* validating GM healthy status*/ +#define vgpu_is_vm_unhealthy(ret_val) \ + (((ret_val) == -EBADRQC) || ((ret_val) == -EFAULT)) + struct intel_gvt_gm { unsigned long vgpu_allocated_low_gm_size; unsigned long vgpu_allocated_high_gm_size; @@ -195,10 +251,18 @@ struct intel_gvt_fence { unsigned long vgpu_allocated_fence_num; }; +/* Special MMIO blocks. */ +struct gvt_mmio_block { + i915_reg_t offset; + unsigned int size; + gvt_mmio_func read; + gvt_mmio_func write; +}; + #define INTEL_GVT_MMIO_HASH_BITS 11 struct intel_gvt_mmio { - u8 *mmio_attribute; + u16 *mmio_attribute; /* Register contains RO bits */ #define F_RO (1 << 0) /* Register contains graphics address */ @@ -209,13 +273,22 @@ struct intel_gvt_mmio { #define F_CMD_ACCESS (1 << 3) /* This reg has been accessed by a VM */ #define F_ACCESSED (1 << 4) -/* This reg has been accessed through GPU commands */ -#define F_CMD_ACCESSED (1 << 5) +/* This reg requires save & restore during host PM suspend/resume */ +#define F_PM_SAVE (1 << 5) /* This reg could be accessed by unaligned address */ #define F_UNALIGN (1 << 6) +/* This reg is in GVT's mmio save-restor list and in hardware + * logical context image + */ +#define F_SR_IN_CTX (1 << 7) +/* Value of command write of this reg needs to be patched */ +#define F_CMD_WRITE_PATCH (1 << 8) + + struct gvt_mmio_block *mmio_block; + unsigned int num_mmio_block; DECLARE_HASHTABLE(mmio_info_table, INTEL_GVT_MMIO_HASH_BITS); - unsigned int num_tracked_mmio; + unsigned long num_tracked_mmio; }; struct intel_gvt_firmware { @@ -224,25 +297,36 @@ struct intel_gvt_firmware { bool firmware_loaded; }; -struct intel_gvt_opregion { - void *opregion_va; - u32 opregion_pa; +struct intel_vgpu_config { + unsigned int low_mm; + unsigned int high_mm; + unsigned int fence; + + /* + * A vGPU with a weight of 8 will get twice as much GPU as a vGPU with + * a weight of 4 on a contended host, different vGPU type has different + * weight set. Legal weights range from 1 to 16. + */ + unsigned int weight; + enum intel_vgpu_edid edid; + const char *name; }; -#define NR_MAX_INTEL_VGPU_TYPES 20 struct intel_vgpu_type { + struct mdev_type type; char name[16]; - unsigned int avail_instance; - unsigned int low_gm_size; - unsigned int high_gm_size; - unsigned int fence; - unsigned int weight; - enum intel_vgpu_edid resolution; + const struct intel_vgpu_config *conf; }; struct intel_gvt { + /* GVT scope lock, protect GVT itself, and all resource currently + * not yet protected by special locks(vgpu and scheduler lock). + */ struct mutex lock; - struct drm_i915_private *dev_priv; + /* scheduler scope lock, protect gvt and vgpu schedule related data */ + struct mutex sched_lock; + + struct intel_gt *gt; struct idr vgpu_idr; /* vGPU IDR pool */ struct intel_gvt_device_info device_info; @@ -252,32 +336,47 @@ struct intel_gvt { struct intel_gvt_firmware firmware; struct intel_gvt_irq irq; struct intel_gvt_gtt gtt; - struct intel_gvt_opregion opregion; struct intel_gvt_workload_scheduler scheduler; struct notifier_block shadow_ctx_notifier_block[I915_NUM_ENGINES]; DECLARE_HASHTABLE(cmd_table, GVT_CMD_HASH_BITS); + struct mdev_parent parent; + struct mdev_type **mdev_types; struct intel_vgpu_type *types; unsigned int num_types; struct intel_vgpu *idle_vgpu; struct task_struct *service_thread; wait_queue_head_t service_thread_wq; + + /* service_request is always used in bit operation, we should always + * use it with atomic bit ops so that no need to use gvt big lock. + */ unsigned long service_request; -}; -static inline struct intel_gvt *to_gvt(struct drm_i915_private *i915) -{ - return i915->gvt; -} + struct { + struct engine_mmio *mmio; + int ctx_mmio_count[I915_NUM_ENGINES]; + u32 *tlb_mmio_offset_list; + u32 tlb_mmio_offset_list_cnt; + u32 *mocs_mmio_offset_list; + u32 mocs_mmio_offset_list_cnt; + } engine_mmio_list; + bool is_reg_whitelist_updated; + + struct dentry *debugfs_root; +}; enum { - INTEL_GVT_REQUEST_EMULATE_VBLANK = 0, - /* Scheduling trigger by timer */ - INTEL_GVT_REQUEST_SCHED = 1, + INTEL_GVT_REQUEST_SCHED = 0, /* Scheduling trigger by event */ - INTEL_GVT_REQUEST_EVENT_SCHED = 2, + INTEL_GVT_REQUEST_EVENT_SCHED = 1, + + /* per-vGPU vblank emulation request */ + INTEL_GVT_REQUEST_EMULATE_VBLANK = 2, + INTEL_GVT_REQUEST_EMULATE_VBLANK_MAX = INTEL_GVT_REQUEST_EMULATE_VBLANK + + GVT_MAX_VGPU, }; static inline void intel_gvt_request_service(struct intel_gvt *gvt, @@ -298,14 +397,15 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt); #define HOST_HIGH_GM_SIZE MB_TO_BYTES(384) #define HOST_FENCE 4 +#define gvt_to_ggtt(gvt) ((gvt)->gt->ggtt) + /* Aperture/GM space definitions for GVT device */ -#define gvt_aperture_sz(gvt) (gvt->dev_priv->ggtt.mappable_end) -#define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.mappable_base) +#define gvt_aperture_sz(gvt) gvt_to_ggtt(gvt)->mappable_end +#define gvt_aperture_pa_base(gvt) gvt_to_ggtt(gvt)->gmadr.start -#define gvt_ggtt_gm_sz(gvt) (gvt->dev_priv->ggtt.base.total) -#define gvt_ggtt_sz(gvt) \ - ((gvt->dev_priv->ggtt.base.total >> PAGE_SHIFT) << 3) -#define gvt_hidden_sz(gvt) (gvt_ggtt_gm_sz(gvt) - gvt_aperture_sz(gvt)) +#define gvt_ggtt_gm_sz(gvt) gvt_to_ggtt(gvt)->vm.total +#define gvt_ggtt_sz(gvt) (gvt_to_ggtt(gvt)->vm.total >> PAGE_SHIFT << 3) +#define gvt_hidden_sz(gvt) (gvt_ggtt_gm_sz(gvt) - gvt_aperture_sz(gvt)) #define gvt_aperture_gmadr_base(gvt) (0) #define gvt_aperture_gmadr_end(gvt) (gvt_aperture_gmadr_base(gvt) \ @@ -316,7 +416,7 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt); #define gvt_hidden_gmadr_end(gvt) (gvt_hidden_gmadr_base(gvt) \ + gvt_hidden_sz(gvt) - 1) -#define gvt_fence_sz(gvt) (gvt->dev_priv->num_fence_regs) +#define gvt_fence_sz(gvt) (gvt_to_ggtt(gvt)->num_fences) /* Aperture/GM space definitions for vGPU */ #define vgpu_aperture_offset(vgpu) ((vgpu)->gm.low_gm_node.start) @@ -340,49 +440,34 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt); #define vgpu_hidden_gmadr_end(vgpu) \ (vgpu_hidden_gmadr_base(vgpu) + vgpu_hidden_sz(vgpu) - 1) -#define vgpu_fence_base(vgpu) (vgpu->fence.base) #define vgpu_fence_sz(vgpu) (vgpu->fence.size) -struct intel_vgpu_creation_params { - __u64 handle; - __u64 low_gm_sz; /* in MB */ - __u64 high_gm_sz; /* in MB */ - __u64 fence_sz; - __u64 resolution; - __s32 primary; - __u64 vgpu_id; - - __u32 weight; -}; +/* ring context size i.e. the first 0x50 dwords*/ +#define RING_CTX_SIZE 320 int intel_vgpu_alloc_resource(struct intel_vgpu *vgpu, - struct intel_vgpu_creation_params *param); + const struct intel_vgpu_config *conf); void intel_vgpu_reset_resource(struct intel_vgpu *vgpu); void intel_vgpu_free_resource(struct intel_vgpu *vgpu); void intel_vgpu_write_fence(struct intel_vgpu *vgpu, u32 fence, u64 value); -/* Macros for easily accessing vGPU virtual/shadow register */ -#define vgpu_vreg(vgpu, reg) \ - (*(u32 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg))) -#define vgpu_vreg8(vgpu, reg) \ - (*(u8 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg))) -#define vgpu_vreg16(vgpu, reg) \ - (*(u16 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg))) -#define vgpu_vreg64(vgpu, reg) \ - (*(u64 *)(vgpu->mmio.vreg + INTEL_GVT_MMIO_OFFSET(reg))) -#define vgpu_sreg(vgpu, reg) \ - (*(u32 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg))) -#define vgpu_sreg8(vgpu, reg) \ - (*(u8 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg))) -#define vgpu_sreg16(vgpu, reg) \ - (*(u16 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg))) -#define vgpu_sreg64(vgpu, reg) \ - (*(u64 *)(vgpu->mmio.sreg + INTEL_GVT_MMIO_OFFSET(reg))) +/* + * Macros for easily accessing vGPU virtual/shadow register. + * Explicitly separate use for typed MMIO reg or real offset. + */ +#define vgpu_vreg_t(vgpu, reg) \ + (*(u32 *)(vgpu->mmio.vreg + i915_mmio_reg_offset(reg))) +#define vgpu_vreg(vgpu, offset) \ + (*(u32 *)(vgpu->mmio.vreg + (offset))) +#define vgpu_vreg64_t(vgpu, reg) \ + (*(u64 *)(vgpu->mmio.vreg + i915_mmio_reg_offset(reg))) +#define vgpu_vreg64(vgpu, offset) \ + (*(u64 *)(vgpu->mmio.vreg + (offset))) #define for_each_active_vgpu(gvt, vgpu, id) \ idr_for_each_entry((&(gvt)->vgpu_idr), (vgpu), (id)) \ - for_each_if(vgpu->active) + for_each_if(test_bit(INTEL_VGPU_STATUS_ACTIVE, vgpu->status)) static inline void intel_vgpu_write_pci_bar(struct intel_vgpu *vgpu, u32 offset, u32 val, bool low) @@ -409,15 +494,19 @@ void intel_gvt_clean_vgpu_types(struct intel_gvt *gvt); struct intel_vgpu *intel_gvt_create_idle_vgpu(struct intel_gvt *gvt); void intel_gvt_destroy_idle_vgpu(struct intel_vgpu *vgpu); -struct intel_vgpu *intel_gvt_create_vgpu(struct intel_gvt *gvt, - struct intel_vgpu_type *type); +int intel_gvt_create_vgpu(struct intel_vgpu *vgpu, + const struct intel_vgpu_config *conf); void intel_gvt_destroy_vgpu(struct intel_vgpu *vgpu); +void intel_gvt_release_vgpu(struct intel_vgpu *vgpu); void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr, - unsigned int engine_mask); + intel_engine_mask_t engine_mask); void intel_gvt_reset_vgpu(struct intel_vgpu *vgpu); void intel_gvt_activate_vgpu(struct intel_vgpu *vgpu); void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu); +int intel_gvt_set_opregion(struct intel_vgpu *vgpu); +int intel_gvt_set_edid(struct intel_vgpu *vgpu, int port_num); + /* validating GM functions */ #define vgpu_gmadr_is_aperture(vgpu, gmadr) \ ((gmadr >= vgpu_aperture_gmadr_base(vgpu)) && \ @@ -444,12 +533,6 @@ void intel_gvt_deactivate_vgpu(struct intel_vgpu *vgpu); gvt_gmadr_is_hidden(gvt, gmadr)) bool intel_gvt_ggtt_validate_range(struct intel_vgpu *vgpu, u64 addr, u32 size); -int intel_gvt_ggtt_gmadr_g2h(struct intel_vgpu *vgpu, u64 g_addr, u64 *h_addr); -int intel_gvt_ggtt_gmadr_h2g(struct intel_vgpu *vgpu, u64 h_addr, u64 *g_addr); -int intel_gvt_ggtt_index_g2h(struct intel_vgpu *vgpu, unsigned long g_index, - unsigned long *h_index); -int intel_gvt_ggtt_h2g_index(struct intel_vgpu *vgpu, unsigned long h_index, - unsigned long *g_index); void intel_vgpu_init_cfg_space(struct intel_vgpu *vgpu, bool primary); @@ -461,46 +544,41 @@ int intel_vgpu_emulate_cfg_read(struct intel_vgpu *vgpu, unsigned int offset, int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset, void *p_data, unsigned int bytes); -void intel_gvt_clean_opregion(struct intel_gvt *gvt); -int intel_gvt_init_opregion(struct intel_gvt *gvt); +void intel_vgpu_emulate_hotplug(struct intel_vgpu *vgpu, bool connected); + +static inline u64 intel_vgpu_get_bar_gpa(struct intel_vgpu *vgpu, int bar) +{ + /* We are 64bit bar. */ + return (*(u64 *)(vgpu->cfg_space.virtual_cfg_space + bar)) & + PCI_BASE_ADDRESS_MEM_MASK; +} void intel_vgpu_clean_opregion(struct intel_vgpu *vgpu); -int intel_vgpu_init_opregion(struct intel_vgpu *vgpu, u32 gpa); +int intel_vgpu_init_opregion(struct intel_vgpu *vgpu); +int intel_vgpu_opregion_base_write_handler(struct intel_vgpu *vgpu, u32 gpa); int intel_vgpu_emulate_opregion_request(struct intel_vgpu *vgpu, u32 swsci); void populate_pvinfo_page(struct intel_vgpu *vgpu); -struct intel_gvt_ops { - int (*emulate_cfg_read)(struct intel_vgpu *, unsigned int, void *, - unsigned int); - int (*emulate_cfg_write)(struct intel_vgpu *, unsigned int, void *, - unsigned int); - int (*emulate_mmio_read)(struct intel_vgpu *, u64, void *, - unsigned int); - int (*emulate_mmio_write)(struct intel_vgpu *, u64, void *, - unsigned int); - struct intel_vgpu *(*vgpu_create)(struct intel_gvt *, - struct intel_vgpu_type *); - void (*vgpu_destroy)(struct intel_vgpu *); - void (*vgpu_reset)(struct intel_vgpu *); - void (*vgpu_activate)(struct intel_vgpu *); - void (*vgpu_deactivate)(struct intel_vgpu *); -}; - +int intel_gvt_scan_and_shadow_workload(struct intel_vgpu_workload *workload); +void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason); +void intel_vgpu_detach_regions(struct intel_vgpu *vgpu); enum { GVT_FAILSAFE_UNSUPPORTED_GUEST, GVT_FAILSAFE_INSUFFICIENT_RESOURCE, + GVT_FAILSAFE_GUEST_ERR, }; -static inline void mmio_hw_access_pre(struct drm_i915_private *dev_priv) +static inline intel_wakeref_t mmio_hw_access_pre(struct intel_gt *gt) { - intel_runtime_pm_get(dev_priv); + return intel_runtime_pm_get(gt->uncore->rpm); } -static inline void mmio_hw_access_post(struct drm_i915_private *dev_priv) +static inline void mmio_hw_access_post(struct intel_gt *gt, + intel_wakeref_t wakeref) { - intel_runtime_pm_put(dev_priv); + intel_runtime_pm_put(gt->uncore->rpm, wakeref); } /** @@ -516,39 +594,42 @@ static inline void intel_gvt_mmio_set_accessed( } /** - * intel_gvt_mmio_is_cmd_accessed - mark a MMIO could be accessed by command + * intel_gvt_mmio_is_cmd_accessible - if a MMIO could be accessed by command * @gvt: a GVT device * @offset: register offset * + * Returns: + * True if an MMIO is able to be accessed by GPU commands */ -static inline bool intel_gvt_mmio_is_cmd_access( +static inline bool intel_gvt_mmio_is_cmd_accessible( struct intel_gvt *gvt, unsigned int offset) { return gvt->mmio.mmio_attribute[offset >> 2] & F_CMD_ACCESS; } /** - * intel_gvt_mmio_is_unalign - mark a MMIO could be accessed unaligned + * intel_gvt_mmio_set_cmd_accessible - + * mark a MMIO could be accessible by command * @gvt: a GVT device * @offset: register offset * */ -static inline bool intel_gvt_mmio_is_unalign( +static inline void intel_gvt_mmio_set_cmd_accessible( struct intel_gvt *gvt, unsigned int offset) { - return gvt->mmio.mmio_attribute[offset >> 2] & F_UNALIGN; + gvt->mmio.mmio_attribute[offset >> 2] |= F_CMD_ACCESS; } /** - * intel_gvt_mmio_set_cmd_accessed - mark a MMIO has been accessed by command + * intel_gvt_mmio_is_unalign - mark a MMIO could be accessed unaligned * @gvt: a GVT device * @offset: register offset * */ -static inline void intel_gvt_mmio_set_cmd_accessed( +static inline bool intel_gvt_mmio_is_unalign( struct intel_gvt *gvt, unsigned int offset) { - gvt->mmio.mmio_attribute[offset >> 2] |= F_CMD_ACCESSED; + return gvt->mmio.mmio_attribute[offset >> 2] & F_UNALIGN; } /** @@ -566,7 +647,114 @@ static inline bool intel_gvt_mmio_has_mode_mask( return gvt->mmio.mmio_attribute[offset >> 2] & F_MODE_MASK; } +/** + * intel_gvt_mmio_is_sr_in_ctx - + * check if an MMIO has F_SR_IN_CTX mask + * @gvt: a GVT device + * @offset: register offset + * + * Returns: + * True if an MMIO has an F_SR_IN_CTX mask, false if it isn't. + * + */ +static inline bool intel_gvt_mmio_is_sr_in_ctx( + struct intel_gvt *gvt, unsigned int offset) +{ + return gvt->mmio.mmio_attribute[offset >> 2] & F_SR_IN_CTX; +} + +/** + * intel_gvt_mmio_set_sr_in_ctx - + * mask an MMIO in GVT's mmio save-restore list and also + * in hardware logical context image + * @gvt: a GVT device + * @offset: register offset + * + */ +static inline void intel_gvt_mmio_set_sr_in_ctx( + struct intel_gvt *gvt, unsigned int offset) +{ + gvt->mmio.mmio_attribute[offset >> 2] |= F_SR_IN_CTX; +} + +void intel_gvt_debugfs_add_vgpu(struct intel_vgpu *vgpu); +/** + * intel_gvt_mmio_set_cmd_write_patch - + * mark an MMIO if its cmd write needs to be + * patched + * @gvt: a GVT device + * @offset: register offset + * + */ +static inline void intel_gvt_mmio_set_cmd_write_patch( + struct intel_gvt *gvt, unsigned int offset) +{ + gvt->mmio.mmio_attribute[offset >> 2] |= F_CMD_WRITE_PATCH; +} + +/** + * intel_gvt_mmio_is_cmd_write_patch - check if an mmio's cmd access needs to + * be patched + * @gvt: a GVT device + * @offset: register offset + * + * Returns: + * True if GPU command write to an MMIO should be patched. + */ +static inline bool intel_gvt_mmio_is_cmd_write_patch( + struct intel_gvt *gvt, unsigned int offset) +{ + return gvt->mmio.mmio_attribute[offset >> 2] & F_CMD_WRITE_PATCH; +} + +/** + * intel_gvt_read_gpa - copy data from GPA to host data buffer + * @vgpu: a vGPU + * @gpa: guest physical address + * @buf: host data buffer + * @len: data length + * + * Returns: + * Zero on success, negative error code if failed. + */ +static inline int intel_gvt_read_gpa(struct intel_vgpu *vgpu, unsigned long gpa, + void *buf, unsigned long len) +{ + if (!test_bit(INTEL_VGPU_STATUS_ATTACHED, vgpu->status)) + return -ESRCH; + return vfio_dma_rw(&vgpu->vfio_device, gpa, buf, len, false); +} + +/** + * intel_gvt_write_gpa - copy data from host data buffer to GPA + * @vgpu: a vGPU + * @gpa: guest physical address + * @buf: host data buffer + * @len: data length + * + * Returns: + * Zero on success, negative error code if failed. + */ +static inline int intel_gvt_write_gpa(struct intel_vgpu *vgpu, + unsigned long gpa, void *buf, unsigned long len) +{ + if (!test_bit(INTEL_VGPU_STATUS_ATTACHED, vgpu->status)) + return -ESRCH; + return vfio_dma_rw(&vgpu->vfio_device, gpa, buf, len, true); +} + +void intel_gvt_debugfs_remove_vgpu(struct intel_vgpu *vgpu); +void intel_gvt_debugfs_init(struct intel_gvt *gvt); +void intel_gvt_debugfs_clean(struct intel_gvt *gvt); + +int intel_gvt_page_track_add(struct intel_vgpu *info, u64 gfn); +int intel_gvt_page_track_remove(struct intel_vgpu *info, u64 gfn); +int intel_gvt_dma_pin_guest_page(struct intel_vgpu *vgpu, dma_addr_t dma_addr); +int intel_gvt_dma_map_guest_page(struct intel_vgpu *vgpu, unsigned long gfn, + unsigned long size, dma_addr_t *dma_addr); +void intel_gvt_dma_unmap_guest_page(struct intel_vgpu *vgpu, + dma_addr_t dma_addr); + #include "trace.h" -#include "mpt.h" #endif |