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 * Ke Yu 25 * Kevin Tian <kevin.tian@intel.com> 26 * Dexuan Cui 27 * 28 * Contributors: 29 * Tina Zhang <tina.zhang@intel.com> 30 * Min He <min.he@intel.com> 31 * Niu Bing <bing.niu@intel.com> 32 * Zhi Wang <zhi.a.wang@intel.com> 33 * 34 */ 35 36 #ifndef _GVT_MMIO_H_ 37 #define _GVT_MMIO_H_ 38 39 #include <linux/types.h> 40 41 struct intel_gvt; 42 struct intel_vgpu; 43 44 #define D_BDW (1 << 0) 45 #define D_SKL (1 << 1) 46 #define D_KBL (1 << 2) 47 #define D_BXT (1 << 3) 48 #define D_CFL (1 << 4) 49 50 #define D_GEN9PLUS (D_SKL | D_KBL | D_BXT | D_CFL) 51 #define D_GEN8PLUS (D_BDW | D_SKL | D_KBL | D_BXT | D_CFL) 52 53 #define D_SKL_PLUS (D_SKL | D_KBL | D_BXT | D_CFL) 54 #define D_BDW_PLUS (D_BDW | D_SKL | D_KBL | D_BXT | D_CFL) 55 56 #define D_PRE_SKL (D_BDW) 57 #define D_ALL (D_BDW | D_SKL | D_KBL | D_BXT | D_CFL) 58 59 typedef int (*gvt_mmio_func)(struct intel_vgpu *, unsigned int, void *, 60 unsigned int); 61 62 struct intel_gvt_mmio_info { 63 u32 offset; 64 u64 ro_mask; 65 u32 device; 66 gvt_mmio_func read; 67 gvt_mmio_func write; 68 u32 addr_range; 69 struct hlist_node node; 70 }; 71 72 const struct intel_engine_cs * 73 intel_gvt_render_mmio_to_engine(struct intel_gvt *gvt, unsigned int reg); 74 unsigned long intel_gvt_get_device_type(struct intel_gvt *gvt); 75 bool intel_gvt_match_device(struct intel_gvt *gvt, unsigned long device); 76 77 int intel_gvt_setup_mmio_info(struct intel_gvt *gvt); 78 void intel_gvt_clean_mmio_info(struct intel_gvt *gvt); 79 int intel_gvt_for_each_tracked_mmio(struct intel_gvt *gvt, 80 int (*handler)(struct intel_gvt *gvt, u32 offset, void *data), 81 void *data); 82 83 struct intel_gvt_mmio_info *intel_gvt_find_mmio_info(struct intel_gvt *gvt, 84 unsigned int offset); 85 86 int intel_vgpu_init_mmio(struct intel_vgpu *vgpu); 87 void intel_vgpu_reset_mmio(struct intel_vgpu *vgpu, bool dmlr); 88 void intel_vgpu_clean_mmio(struct intel_vgpu *vgpu); 89 90 int intel_vgpu_gpa_to_mmio_offset(struct intel_vgpu *vgpu, u64 gpa); 91 92 int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, u64 pa, 93 void *p_data, unsigned int bytes); 94 int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, u64 pa, 95 void *p_data, unsigned int bytes); 96 97 int intel_vgpu_default_mmio_read(struct intel_vgpu *vgpu, unsigned int offset, 98 void *p_data, unsigned int bytes); 99 int intel_vgpu_default_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, 100 void *p_data, unsigned int bytes); 101 102 bool intel_gvt_in_force_nonpriv_whitelist(struct intel_gvt *gvt, 103 unsigned int offset); 104 105 int intel_vgpu_mmio_reg_rw(struct intel_vgpu *vgpu, unsigned int offset, 106 void *pdata, unsigned int bytes, bool is_read); 107 108 int intel_vgpu_mask_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, 109 void *p_data, unsigned int bytes); 110 111 void intel_gvt_restore_fence(struct intel_gvt *gvt); 112 void intel_gvt_restore_mmio(struct intel_gvt *gvt); 113 114 #endif 115