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 struct intel_gvt; 40 struct intel_vgpu; 41 42 #define D_SNB (1 << 0) 43 #define D_IVB (1 << 1) 44 #define D_HSW (1 << 2) 45 #define D_BDW (1 << 3) 46 #define D_SKL (1 << 4) 47 48 #define D_GEN9PLUS (D_SKL) 49 #define D_GEN8PLUS (D_BDW | D_SKL) 50 #define D_GEN75PLUS (D_HSW | D_BDW | D_SKL) 51 #define D_GEN7PLUS (D_IVB | D_HSW | D_BDW | D_SKL) 52 53 #define D_SKL_PLUS (D_SKL) 54 #define D_BDW_PLUS (D_BDW | D_SKL) 55 #define D_HSW_PLUS (D_HSW | D_BDW | D_SKL) 56 #define D_IVB_PLUS (D_IVB | D_HSW | D_BDW | D_SKL) 57 58 #define D_PRE_BDW (D_SNB | D_IVB | D_HSW) 59 #define D_PRE_SKL (D_SNB | D_IVB | D_HSW | D_BDW) 60 #define D_ALL (D_SNB | D_IVB | D_HSW | D_BDW | D_SKL) 61 62 struct intel_gvt_mmio_info { 63 u32 offset; 64 u32 size; 65 u32 length; 66 u32 addr_mask; 67 u64 ro_mask; 68 u32 device; 69 int (*read)(struct intel_vgpu *, unsigned int, void *, unsigned int); 70 int (*write)(struct intel_vgpu *, unsigned int, void *, unsigned int); 71 u32 addr_range; 72 struct hlist_node node; 73 }; 74 75 unsigned long intel_gvt_get_device_type(struct intel_gvt *gvt); 76 bool intel_gvt_match_device(struct intel_gvt *gvt, unsigned long device); 77 78 int intel_gvt_setup_mmio_info(struct intel_gvt *gvt); 79 void intel_gvt_clean_mmio_info(struct intel_gvt *gvt); 80 81 struct intel_gvt_mmio_info *intel_gvt_find_mmio_info(struct intel_gvt *gvt, 82 unsigned int offset); 83 #define INTEL_GVT_MMIO_OFFSET(reg) ({ \ 84 typeof(reg) __reg = reg; \ 85 u32 *offset = (u32 *)&__reg; \ 86 *offset; \ 87 }) 88 89 int intel_vgpu_init_mmio(struct intel_vgpu *vgpu); 90 void intel_vgpu_reset_mmio(struct intel_vgpu *vgpu); 91 void intel_vgpu_clean_mmio(struct intel_vgpu *vgpu); 92 93 int intel_vgpu_gpa_to_mmio_offset(struct intel_vgpu *vgpu, u64 gpa); 94 95 int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, u64 pa, 96 void *p_data, unsigned int bytes); 97 int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, u64 pa, 98 void *p_data, unsigned int bytes); 99 bool intel_gvt_mmio_is_cmd_access(struct intel_gvt *gvt, 100 unsigned int offset); 101 bool intel_gvt_mmio_is_unalign(struct intel_gvt *gvt, unsigned int offset); 102 void intel_gvt_mmio_set_accessed(struct intel_gvt *gvt, unsigned int offset); 103 void intel_gvt_mmio_set_cmd_accessed(struct intel_gvt *gvt, 104 unsigned int offset); 105 bool intel_gvt_mmio_has_mode_mask(struct intel_gvt *gvt, unsigned int offset); 106 int intel_vgpu_default_mmio_read(struct intel_vgpu *vgpu, unsigned int offset, 107 void *p_data, unsigned int bytes); 108 int intel_vgpu_default_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, 109 void *p_data, unsigned int bytes); 110 #endif 111