Alex Deucher | 0936139 | 2015-04-20 12:04:22 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2014 Advanced Micro Devices, Inc. |
| 3 | * All Rights Reserved. |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 9 | * and/or sell copies of the Software, and to permit persons to whom the |
| 10 | * Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice shall be included in |
| 13 | * all copies or substantial portions of the 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| 19 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| 20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| 21 | * OTHER DEALINGS IN THE SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #ifndef _AMDGPU_INTERNAL_H_ |
| 25 | #define _AMDGPU_INTERNAL_H_ |
| 26 | |
| 27 | #ifdef HAVE_CONFIG_H |
| 28 | #include "config.h" |
| 29 | #endif |
| 30 | |
| 31 | #include <assert.h> |
| 32 | #include <pthread.h> |
| 33 | #include "xf86atomic.h" |
| 34 | #include "amdgpu.h" |
| 35 | #include "util_double_list.h" |
| 36 | |
| 37 | #define AMDGPU_CS_MAX_RINGS 8 |
monk.liu | 2f2c8ac | 2015-04-23 13:18:59 +0800 | [diff] [blame] | 38 | /* do not use below macro if b is not power of 2 aligned value */ |
| 39 | #define ROUND_DOWN(a,b) ((a) & (~((b)-1))) |
| 40 | #define ROUND_UP(a,b) (((a)+((b)-1)) & (~((b)-1))) |
Alex Deucher | 0936139 | 2015-04-20 12:04:22 -0400 | [diff] [blame] | 41 | |
| 42 | struct amdgpu_bo_va_hole { |
| 43 | struct list_head list; |
| 44 | uint64_t offset; |
| 45 | uint64_t size; |
| 46 | }; |
| 47 | |
| 48 | struct amdgpu_bo_va_mgr { |
| 49 | /* the start virtual address */ |
| 50 | uint64_t va_offset; |
| 51 | struct list_head va_holes; |
| 52 | pthread_mutex_t bo_va_mutex; |
| 53 | uint32_t va_alignment; |
| 54 | }; |
| 55 | |
| 56 | struct amdgpu_device { |
| 57 | atomic_t refcount; |
| 58 | int fd; |
| 59 | int flink_fd; |
| 60 | unsigned major_version; |
| 61 | unsigned minor_version; |
| 62 | |
| 63 | /** List of buffer handles. Protected by bo_table_mutex. */ |
| 64 | struct util_hash_table *bo_handles; |
| 65 | /** List of buffer GEM flink names. Protected by bo_table_mutex. */ |
| 66 | struct util_hash_table *bo_flink_names; |
| 67 | /** List of buffer virtual memory ranges. Protected by bo_table_mutex. */ |
| 68 | struct util_hash_table *bo_vas; |
| 69 | /** This protects all hash tables. */ |
| 70 | pthread_mutex_t bo_table_mutex; |
| 71 | struct amdgpu_bo_va_mgr vamgr; |
| 72 | struct drm_amdgpu_info_device dev_info; |
| 73 | struct amdgpu_gpu_info info; |
| 74 | }; |
| 75 | |
| 76 | struct amdgpu_bo { |
| 77 | atomic_t refcount; |
| 78 | struct amdgpu_device *dev; |
| 79 | |
| 80 | uint64_t alloc_size; |
| 81 | uint64_t virtual_mc_base_address; |
| 82 | |
| 83 | uint32_t handle; |
| 84 | uint32_t flink_name; |
| 85 | |
| 86 | pthread_mutex_t cpu_access_mutex; |
| 87 | void *cpu_ptr; |
| 88 | int cpu_map_count; |
| 89 | }; |
| 90 | |
Christian König | 6dc2eaf | 2015-04-22 14:52:34 +0200 | [diff] [blame^] | 91 | struct amdgpu_bo_list { |
| 92 | struct amdgpu_device *dev; |
| 93 | |
| 94 | uint32_t handle; |
| 95 | }; |
| 96 | |
Alex Deucher | 0936139 | 2015-04-20 12:04:22 -0400 | [diff] [blame] | 97 | /* |
| 98 | * There are three mutexes. |
| 99 | * To avoid deadlock, only hold the mutexes in this order: |
| 100 | * sequence_mutex -> pendings_mutex -> pool_mutex. |
| 101 | */ |
| 102 | struct amdgpu_context { |
Christian König | 9c2afff | 2015-04-22 12:21:13 +0200 | [diff] [blame] | 103 | struct amdgpu_device *dev; |
Alex Deucher | 0936139 | 2015-04-20 12:04:22 -0400 | [diff] [blame] | 104 | /** Mutex for accessing fences and to maintain command submissions |
| 105 | and pending lists in good sequence. */ |
| 106 | pthread_mutex_t sequence_mutex; |
| 107 | /** Buffer for user fences */ |
| 108 | struct amdgpu_ib *fence_ib; |
| 109 | /** The newest expired fence for the ring of the ip blocks. */ |
| 110 | uint64_t expired_fences[AMDGPU_HW_IP_NUM][AMDGPU_HW_IP_INSTANCE_MAX_COUNT][AMDGPU_CS_MAX_RINGS]; |
| 111 | /** Mutex for accessing pendings list. */ |
| 112 | pthread_mutex_t pendings_mutex; |
| 113 | /** Pending IBs. */ |
| 114 | struct list_head pendings[AMDGPU_HW_IP_NUM][AMDGPU_HW_IP_INSTANCE_MAX_COUNT][AMDGPU_CS_MAX_RINGS]; |
| 115 | /** Freed IBs not yet in pool */ |
| 116 | struct list_head freed; |
| 117 | /** Mutex for accessing free ib pool. */ |
| 118 | pthread_mutex_t pool_mutex; |
| 119 | /** Internal free IB pools. */ |
| 120 | struct list_head ib_pools[AMDGPU_CS_IB_SIZE_NUM]; |
| 121 | /* context id*/ |
| 122 | uint32_t id; |
| 123 | }; |
| 124 | |
| 125 | struct amdgpu_ib { |
Christian König | 9c2afff | 2015-04-22 12:21:13 +0200 | [diff] [blame] | 126 | amdgpu_context_handle context; |
Alex Deucher | 0936139 | 2015-04-20 12:04:22 -0400 | [diff] [blame] | 127 | struct list_head list_node; |
| 128 | amdgpu_bo_handle buf_handle; |
| 129 | void *cpu; |
| 130 | uint64_t virtual_mc_base_address; |
| 131 | enum amdgpu_cs_ib_size ib_size; |
| 132 | uint64_t cs_handle; |
| 133 | }; |
| 134 | |
| 135 | /** |
| 136 | * Functions. |
| 137 | */ |
| 138 | |
| 139 | void amdgpu_device_free_internal(amdgpu_device_handle dev); |
| 140 | |
| 141 | void amdgpu_bo_free_internal(amdgpu_bo_handle bo); |
| 142 | |
| 143 | void amdgpu_vamgr_init(struct amdgpu_device *dev); |
| 144 | |
| 145 | uint64_t amdgpu_vamgr_find_va(struct amdgpu_bo_va_mgr *mgr, |
| 146 | uint64_t size, uint64_t alignment); |
| 147 | |
| 148 | void amdgpu_vamgr_free_va(struct amdgpu_bo_va_mgr *mgr, uint64_t va, |
| 149 | uint64_t size); |
| 150 | |
| 151 | int amdgpu_query_gpu_info_init(amdgpu_device_handle dev); |
| 152 | |
| 153 | uint64_t amdgpu_cs_calculate_timeout(uint64_t timeout); |
| 154 | |
| 155 | /** |
| 156 | * Inline functions. |
| 157 | */ |
| 158 | |
| 159 | /** |
| 160 | * Increment src and decrement dst as if we were updating references |
| 161 | * for an assignment between 2 pointers of some objects. |
| 162 | * |
| 163 | * \return true if dst is 0 |
| 164 | */ |
| 165 | static inline bool update_references(atomic_t *dst, atomic_t *src) |
| 166 | { |
| 167 | if (dst != src) { |
| 168 | /* bump src first */ |
| 169 | if (src) { |
| 170 | assert(atomic_read(src) > 0); |
| 171 | atomic_inc(src); |
| 172 | } |
| 173 | if (dst) { |
| 174 | assert(atomic_read(dst) > 0); |
| 175 | return atomic_dec_and_test(dst); |
| 176 | } |
| 177 | } |
| 178 | return false; |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * Assignment between two amdgpu_bo pointers with reference counting. |
| 183 | * |
| 184 | * Usage: |
| 185 | * struct amdgpu_bo *dst = ... , *src = ...; |
| 186 | * |
| 187 | * dst = src; |
| 188 | * // No reference counting. Only use this when you need to move |
| 189 | * // a reference from one pointer to another. |
| 190 | * |
| 191 | * amdgpu_bo_reference(&dst, src); |
| 192 | * // Reference counters are updated. dst is decremented and src is |
| 193 | * // incremented. dst is freed if its reference counter is 0. |
| 194 | */ |
| 195 | static inline void amdgpu_bo_reference(struct amdgpu_bo **dst, |
| 196 | struct amdgpu_bo *src) |
| 197 | { |
| 198 | if (update_references(&(*dst)->refcount, &src->refcount)) |
| 199 | amdgpu_bo_free_internal(*dst); |
| 200 | *dst = src; |
| 201 | } |
| 202 | |
| 203 | /** |
| 204 | * Assignment between two amdgpu_device pointers with reference counting. |
| 205 | * |
| 206 | * Usage: |
| 207 | * struct amdgpu_device *dst = ... , *src = ...; |
| 208 | * |
| 209 | * dst = src; |
| 210 | * // No reference counting. Only use this when you need to move |
| 211 | * // a reference from one pointer to another. |
| 212 | * |
| 213 | * amdgpu_device_reference(&dst, src); |
| 214 | * // Reference counters are updated. dst is decremented and src is |
| 215 | * // incremented. dst is freed if its reference counter is 0. |
| 216 | */ |
| 217 | void amdgpu_device_reference(struct amdgpu_device **dst, |
| 218 | struct amdgpu_device *src); |
| 219 | #endif |