| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Zhi Wang | 608 | 57.41% | 5 | 15.15% |
| Changbin Du | 280 | 26.44% | 14 | 42.42% |
| Ping Gao | 70 | 6.61% | 2 | 6.06% |
| Colin Xu | 27 | 2.55% | 2 | 6.06% |
| Jani Nikula | 24 | 2.27% | 1 | 3.03% |
| Hang Yuan | 19 | 1.79% | 1 | 3.03% |
| Aleksei Gimbitskii | 13 | 1.23% | 1 | 3.03% |
| Zhenyu Wang | 13 | 1.23% | 3 | 9.09% |
| Yakui Zhao | 2 | 0.19% | 1 | 3.03% |
| Rikard Falkeborn | 2 | 0.19% | 2 | 6.06% |
| Zhao Yan | 1 | 0.09% | 1 | 3.03% |
| Total | 1059 | 33 |
/* * Copyright(c) 2011-2016 Intel Corporation. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * * Authors: * Zhi Wang <zhi.a.wang@intel.com> * Zhenyu Wang <zhenyuw@linux.intel.com> * Xiao Zheng <xiao.zheng@intel.com> * * Contributors: * Min He <min.he@intel.com> * Bing Niu <bing.niu@intel.com> * */ #ifndef _GVT_GTT_H_ #define _GVT_GTT_H_ #include <linux/kernel.h> #include <linux/kref.h> #include <linux/mutex.h> #include <linux/radix-tree.h> #include "gt/intel_gtt.h" struct intel_gvt; struct intel_vgpu; struct intel_vgpu_mm; #define I915_GTT_PAGE_SHIFT 12 #define INTEL_GVT_INVALID_ADDR (~0UL) struct intel_gvt_gtt_entry { u64 val64; int type; }; struct intel_gvt_gtt_pte_ops { int (*get_entry)(void *pt, struct intel_gvt_gtt_entry *e, unsigned long index, bool hypervisor_access, unsigned long gpa, struct intel_vgpu *vgpu); int (*set_entry)(void *pt, struct intel_gvt_gtt_entry *e, unsigned long index, bool hypervisor_access, unsigned long gpa, struct intel_vgpu *vgpu); bool (*test_present)(struct intel_gvt_gtt_entry *e); void (*clear_present)(struct intel_gvt_gtt_entry *e); void (*set_present)(struct intel_gvt_gtt_entry *e); bool (*test_pse)(struct intel_gvt_gtt_entry *e); void (*clear_pse)(struct intel_gvt_gtt_entry *e); bool (*test_ips)(struct intel_gvt_gtt_entry *e); void (*clear_ips)(struct intel_gvt_gtt_entry *e); bool (*test_64k_splited)(struct intel_gvt_gtt_entry *e); void (*clear_64k_splited)(struct intel_gvt_gtt_entry *e); void (*set_64k_splited)(struct intel_gvt_gtt_entry *e); void (*set_pfn)(struct intel_gvt_gtt_entry *e, unsigned long pfn); unsigned long (*get_pfn)(struct intel_gvt_gtt_entry *e); }; struct intel_gvt_gtt_gma_ops { unsigned long (*gma_to_ggtt_pte_index)(unsigned long gma); unsigned long (*gma_to_pte_index)(unsigned long gma); unsigned long (*gma_to_pde_index)(unsigned long gma); unsigned long (*gma_to_l3_pdp_index)(unsigned long gma); unsigned long (*gma_to_l4_pdp_index)(unsigned long gma); unsigned long (*gma_to_pml4_index)(unsigned long gma); }; struct intel_gvt_gtt { const struct intel_gvt_gtt_pte_ops *pte_ops; const struct intel_gvt_gtt_gma_ops *gma_ops; int (*mm_alloc_page_table)(struct intel_vgpu_mm *mm); void (*mm_free_page_table)(struct intel_vgpu_mm *mm); struct list_head oos_page_use_list_head; struct list_head oos_page_free_list_head; struct mutex ppgtt_mm_lock; struct list_head ppgtt_mm_lru_list_head; struct page *scratch_page; unsigned long scratch_mfn; }; enum intel_gvt_gtt_type { GTT_TYPE_INVALID = 0, GTT_TYPE_GGTT_PTE, GTT_TYPE_PPGTT_PTE_4K_ENTRY, GTT_TYPE_PPGTT_PTE_64K_ENTRY, GTT_TYPE_PPGTT_PTE_2M_ENTRY, GTT_TYPE_PPGTT_PTE_1G_ENTRY, GTT_TYPE_PPGTT_PTE_ENTRY, GTT_TYPE_PPGTT_PDE_ENTRY, GTT_TYPE_PPGTT_PDP_ENTRY, GTT_TYPE_PPGTT_PML4_ENTRY, GTT_TYPE_PPGTT_ROOT_ENTRY, GTT_TYPE_PPGTT_ROOT_L3_ENTRY, GTT_TYPE_PPGTT_ROOT_L4_ENTRY, GTT_TYPE_PPGTT_ENTRY, GTT_TYPE_PPGTT_PTE_PT, GTT_TYPE_PPGTT_PDE_PT, GTT_TYPE_PPGTT_PDP_PT, GTT_TYPE_PPGTT_PML4_PT, GTT_TYPE_MAX, }; enum intel_gvt_mm_type { INTEL_GVT_MM_GGTT, INTEL_GVT_MM_PPGTT, }; #define GVT_RING_CTX_NR_PDPS GEN8_3LVL_PDPES struct intel_gvt_partial_pte { unsigned long offset; u64 data; struct list_head list; }; struct intel_vgpu_mm { enum intel_gvt_mm_type type; struct intel_vgpu *vgpu; struct kref ref; atomic_t pincount; union { struct { enum intel_gvt_gtt_type root_entry_type; /* * The 4 PDPs in ring context. For 48bit addressing, * only PDP0 is valid and point to PML4. For 32it * addressing, all 4 are used as true PDPs. */ u64 guest_pdps[GVT_RING_CTX_NR_PDPS]; u64 shadow_pdps[GVT_RING_CTX_NR_PDPS]; bool shadowed; struct list_head list; struct list_head lru_list; struct list_head link; /* possible LRI shadow mm list */ } ppgtt_mm; struct { void *virtual_ggtt; /* Save/restore for PM */ u64 *host_ggtt_aperture; u64 *host_ggtt_hidden; struct list_head partial_pte_list; } ggtt_mm; }; }; struct intel_vgpu_mm *intel_vgpu_create_ppgtt_mm(struct intel_vgpu *vgpu, enum intel_gvt_gtt_type root_entry_type, u64 pdps[]); static inline void intel_vgpu_mm_get(struct intel_vgpu_mm *mm) { kref_get(&mm->ref); } void _intel_vgpu_mm_release(struct kref *mm_ref); static inline void intel_vgpu_mm_put(struct intel_vgpu_mm *mm) { kref_put(&mm->ref, _intel_vgpu_mm_release); } static inline void intel_vgpu_destroy_mm(struct intel_vgpu_mm *mm) { intel_vgpu_mm_put(mm); } struct intel_vgpu_guest_page; struct intel_vgpu_scratch_pt { struct page *page; unsigned long page_mfn; }; struct intel_vgpu_gtt { struct intel_vgpu_mm *ggtt_mm; unsigned long active_ppgtt_mm_bitmap; struct list_head ppgtt_mm_list_head; struct radix_tree_root spt_tree; struct list_head oos_page_list_head; struct list_head post_shadow_list_head; struct intel_vgpu_scratch_pt scratch_pt[GTT_TYPE_MAX]; }; int intel_vgpu_init_gtt(struct intel_vgpu *vgpu); void intel_vgpu_clean_gtt(struct intel_vgpu *vgpu); void intel_vgpu_reset_ggtt(struct intel_vgpu *vgpu, bool invalidate_old); void intel_vgpu_invalidate_ppgtt(struct intel_vgpu *vgpu); int intel_gvt_init_gtt(struct intel_gvt *gvt); void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu); void intel_gvt_clean_gtt(struct intel_gvt *gvt); struct intel_vgpu_mm *intel_gvt_find_ppgtt_mm(struct intel_vgpu *vgpu, int page_table_level, void *root_entry); struct intel_vgpu_oos_page { struct intel_vgpu_ppgtt_spt *spt; struct list_head list; struct list_head vm_list; int id; void *mem; }; #define GTT_ENTRY_NUM_IN_ONE_PAGE 512 /* Represent a vgpu shadow page table. */ struct intel_vgpu_ppgtt_spt { atomic_t refcount; struct intel_vgpu *vgpu; struct { enum intel_gvt_gtt_type type; bool pde_ips; /* for 64KB PTEs */ void *vaddr; struct page *page; unsigned long mfn; } shadow_page; struct { enum intel_gvt_gtt_type type; bool pde_ips; /* for 64KB PTEs */ unsigned long gfn; unsigned long write_cnt; struct intel_vgpu_oos_page *oos_page; } guest_page; DECLARE_BITMAP(post_shadow_bitmap, GTT_ENTRY_NUM_IN_ONE_PAGE); struct list_head post_shadow_list; }; int intel_vgpu_sync_oos_pages(struct intel_vgpu *vgpu); int intel_vgpu_flush_post_shadow(struct intel_vgpu *vgpu); int intel_vgpu_pin_mm(struct intel_vgpu_mm *mm); void intel_vgpu_unpin_mm(struct intel_vgpu_mm *mm); unsigned long intel_vgpu_gma_to_gpa(struct intel_vgpu_mm *mm, unsigned long gma); struct intel_vgpu_mm *intel_vgpu_find_ppgtt_mm(struct intel_vgpu *vgpu, u64 pdps[]); struct intel_vgpu_mm *intel_vgpu_get_ppgtt_mm(struct intel_vgpu *vgpu, enum intel_gvt_gtt_type root_entry_type, u64 pdps[]); int intel_vgpu_put_ppgtt_mm(struct intel_vgpu *vgpu, u64 pdps[]); int intel_vgpu_emulate_ggtt_mmio_read(struct intel_vgpu *vgpu, unsigned int off, void *p_data, unsigned int bytes); int intel_vgpu_emulate_ggtt_mmio_write(struct intel_vgpu *vgpu, unsigned int off, void *p_data, unsigned int bytes); void intel_vgpu_destroy_all_ppgtt_mm(struct intel_vgpu *vgpu); void intel_gvt_restore_ggtt(struct intel_gvt *gvt); #endif /* _GVT_GTT_H_ */
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