1 /* 2 * Copyright 2022 Advanced Micro Devices, Inc. 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 shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 */ 23 24 #ifndef AMDGPU_XCP_H 25 #define AMDGPU_XCP_H 26 27 #include <linux/pci.h> 28 #include <linux/xarray.h> 29 30 #include "amdgpu_ctx.h" 31 32 #define MAX_XCP 8 33 34 #define AMDGPU_XCP_MODE_NONE -1 35 #define AMDGPU_XCP_MODE_TRANS -2 36 37 #define AMDGPU_XCP_FL_NONE 0 38 #define AMDGPU_XCP_FL_LOCKED (1 << 0) 39 40 struct amdgpu_fpriv; 41 42 enum AMDGPU_XCP_IP_BLOCK { 43 AMDGPU_XCP_GFXHUB, 44 AMDGPU_XCP_GFX, 45 AMDGPU_XCP_SDMA, 46 AMDGPU_XCP_VCN, 47 AMDGPU_XCP_MAX_BLOCKS 48 }; 49 50 enum AMDGPU_XCP_STATE { 51 AMDGPU_XCP_PREPARE_SUSPEND, 52 AMDGPU_XCP_SUSPEND, 53 AMDGPU_XCP_PREPARE_RESUME, 54 AMDGPU_XCP_RESUME, 55 }; 56 57 struct amdgpu_xcp_ip_funcs { 58 int (*prepare_suspend)(void *handle, uint32_t inst_mask); 59 int (*suspend)(void *handle, uint32_t inst_mask); 60 int (*prepare_resume)(void *handle, uint32_t inst_mask); 61 int (*resume)(void *handle, uint32_t inst_mask); 62 }; 63 64 struct amdgpu_xcp_ip { 65 struct amdgpu_xcp_ip_funcs *ip_funcs; 66 uint32_t inst_mask; 67 68 enum AMDGPU_XCP_IP_BLOCK ip_id; 69 bool valid; 70 }; 71 72 struct amdgpu_xcp { 73 struct amdgpu_xcp_ip ip[AMDGPU_XCP_MAX_BLOCKS]; 74 75 uint8_t id; 76 uint8_t mem_id; 77 bool valid; 78 atomic_t ref_cnt; 79 struct drm_device *ddev; 80 struct amdgpu_sched gpu_sched[AMDGPU_HW_IP_NUM][AMDGPU_RING_PRIO_MAX]; 81 }; 82 83 struct amdgpu_xcp_mgr { 84 struct amdgpu_device *adev; 85 struct mutex xcp_lock; 86 struct amdgpu_xcp_mgr_funcs *funcs; 87 88 struct amdgpu_xcp xcp[MAX_XCP]; 89 uint8_t num_xcps; 90 int8_t mode; 91 92 /* Used to determine KFD memory size limits per XCP */ 93 unsigned int num_xcp_per_mem_partition; 94 }; 95 96 struct amdgpu_xcp_mgr_funcs { 97 int (*switch_partition_mode)(struct amdgpu_xcp_mgr *xcp_mgr, int mode, 98 int *num_xcps); 99 int (*query_partition_mode)(struct amdgpu_xcp_mgr *xcp_mgr); 100 int (*get_ip_details)(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id, 101 enum AMDGPU_XCP_IP_BLOCK ip_id, 102 struct amdgpu_xcp_ip *ip); 103 int (*get_xcp_mem_id)(struct amdgpu_xcp_mgr *xcp_mgr, 104 struct amdgpu_xcp *xcp, uint8_t *mem_id); 105 106 int (*prepare_suspend)(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); 107 int (*suspend)(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); 108 int (*prepare_resume)(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); 109 int (*resume)(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); 110 int (*select_scheds)(struct amdgpu_device *adev, 111 u32 hw_ip, u32 hw_prio, struct amdgpu_fpriv *fpriv, 112 unsigned int *num_scheds, struct drm_gpu_scheduler ***scheds); 113 int (*update_partition_sched_list)(struct amdgpu_device *adev); 114 }; 115 116 int amdgpu_xcp_prepare_suspend(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); 117 int amdgpu_xcp_suspend(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); 118 int amdgpu_xcp_prepare_resume(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); 119 int amdgpu_xcp_resume(struct amdgpu_xcp_mgr *xcp_mgr, int xcp_id); 120 121 int amdgpu_xcp_mgr_init(struct amdgpu_device *adev, int init_mode, 122 int init_xcps, struct amdgpu_xcp_mgr_funcs *xcp_funcs); 123 int amdgpu_xcp_init(struct amdgpu_xcp_mgr *xcp_mgr, int num_xcps, int mode); 124 int amdgpu_xcp_query_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, u32 flags); 125 int amdgpu_xcp_switch_partition_mode(struct amdgpu_xcp_mgr *xcp_mgr, int mode); 126 int amdgpu_xcp_get_partition(struct amdgpu_xcp_mgr *xcp_mgr, 127 enum AMDGPU_XCP_IP_BLOCK ip, int instance); 128 129 int amdgpu_xcp_get_inst_details(struct amdgpu_xcp *xcp, 130 enum AMDGPU_XCP_IP_BLOCK ip, 131 uint32_t *inst_mask); 132 133 int amdgpu_xcp_dev_register(struct amdgpu_device *adev, 134 const struct pci_device_id *ent); 135 void amdgpu_xcp_dev_unplug(struct amdgpu_device *adev); 136 int amdgpu_xcp_open_device(struct amdgpu_device *adev, 137 struct amdgpu_fpriv *fpriv, 138 struct drm_file *file_priv); 139 void amdgpu_xcp_release_sched(struct amdgpu_device *adev, 140 struct amdgpu_ctx_entity *entity); 141 142 #define amdgpu_xcp_select_scheds(adev, e, c, d, x, y) \ 143 ((adev)->xcp_mgr && (adev)->xcp_mgr->funcs && \ 144 (adev)->xcp_mgr->funcs->select_scheds ? \ 145 (adev)->xcp_mgr->funcs->select_scheds((adev), (e), (c), (d), (x), (y)) : -ENOENT) 146 #define amdgpu_xcp_update_partition_sched_list(adev) \ 147 ((adev)->xcp_mgr && (adev)->xcp_mgr->funcs && \ 148 (adev)->xcp_mgr->funcs->update_partition_sched_list ? \ 149 (adev)->xcp_mgr->funcs->update_partition_sched_list(adev) : 0) 150 151 static inline int amdgpu_xcp_get_num_xcp(struct amdgpu_xcp_mgr *xcp_mgr) 152 { 153 if (!xcp_mgr) 154 return 1; 155 else 156 return xcp_mgr->num_xcps; 157 } 158 159 static inline struct amdgpu_xcp * 160 amdgpu_get_next_xcp(struct amdgpu_xcp_mgr *xcp_mgr, int *from) 161 { 162 if (!xcp_mgr) 163 return NULL; 164 165 while (*from < MAX_XCP) { 166 if (xcp_mgr->xcp[*from].valid) 167 return &xcp_mgr->xcp[*from]; 168 ++(*from); 169 } 170 171 return NULL; 172 } 173 174 #define for_each_xcp(xcp_mgr, xcp, i) \ 175 for (i = 0, xcp = amdgpu_get_next_xcp(xcp_mgr, &i); xcp; \ 176 xcp = amdgpu_get_next_xcp(xcp_mgr, &i)) 177 178 #endif 179