| 1 | /* |
| 2 | * Copyright (C) 2015 Etnaviv Project |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License version 2 as published by |
| 6 | * the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along with |
| 14 | * this program. If not, see <http://www.gnu.org/licenses/>. |
| 15 | */ |
| 16 | |
| 17 | #ifndef __ETNAVIV_GPU_H__ |
| 18 | #define __ETNAVIV_GPU_H__ |
| 19 | |
| 20 | #include <linux/clk.h> |
| 21 | #include <linux/regulator/consumer.h> |
| 22 | |
| 23 | #include "etnaviv_drv.h" |
| 24 | |
| 25 | struct etnaviv_gem_submit; |
| 26 | struct etnaviv_vram_mapping; |
| 27 | |
| 28 | struct etnaviv_chip_identity { |
| 29 | /* Chip model. */ |
| 30 | u32 model; |
| 31 | |
| 32 | /* Revision value.*/ |
| 33 | u32 revision; |
| 34 | |
| 35 | /* Supported feature fields. */ |
| 36 | u32 features; |
| 37 | |
| 38 | /* Supported minor feature fields. */ |
| 39 | u32 minor_features0; |
| 40 | |
| 41 | /* Supported minor feature 1 fields. */ |
| 42 | u32 minor_features1; |
| 43 | |
| 44 | /* Supported minor feature 2 fields. */ |
| 45 | u32 minor_features2; |
| 46 | |
| 47 | /* Supported minor feature 3 fields. */ |
| 48 | u32 minor_features3; |
| 49 | |
| 50 | /* Supported minor feature 4 fields. */ |
| 51 | u32 minor_features4; |
| 52 | |
| 53 | /* Supported minor feature 5 fields. */ |
| 54 | u32 minor_features5; |
| 55 | |
| 56 | /* Number of streams supported. */ |
| 57 | u32 stream_count; |
| 58 | |
| 59 | /* Total number of temporary registers per thread. */ |
| 60 | u32 register_max; |
| 61 | |
| 62 | /* Maximum number of threads. */ |
| 63 | u32 thread_count; |
| 64 | |
| 65 | /* Number of shader cores. */ |
| 66 | u32 shader_core_count; |
| 67 | |
| 68 | /* Size of the vertex cache. */ |
| 69 | u32 vertex_cache_size; |
| 70 | |
| 71 | /* Number of entries in the vertex output buffer. */ |
| 72 | u32 vertex_output_buffer_size; |
| 73 | |
| 74 | /* Number of pixel pipes. */ |
| 75 | u32 pixel_pipes; |
| 76 | |
| 77 | /* Number of instructions. */ |
| 78 | u32 instruction_count; |
| 79 | |
| 80 | /* Number of constants. */ |
| 81 | u32 num_constants; |
| 82 | |
| 83 | /* Buffer size */ |
| 84 | u32 buffer_size; |
| 85 | |
| 86 | /* Number of varyings */ |
| 87 | u8 varyings_count; |
| 88 | }; |
| 89 | |
| 90 | struct etnaviv_event { |
| 91 | bool used; |
| 92 | struct fence *fence; |
| 93 | }; |
| 94 | |
| 95 | struct etnaviv_cmdbuf; |
| 96 | |
| 97 | struct etnaviv_gpu { |
| 98 | struct drm_device *drm; |
| 99 | struct device *dev; |
| 100 | struct mutex lock; |
| 101 | struct etnaviv_chip_identity identity; |
| 102 | struct etnaviv_file_private *lastctx; |
| 103 | bool switch_context; |
| 104 | |
| 105 | /* 'ring'-buffer: */ |
| 106 | struct etnaviv_cmdbuf *buffer; |
| 107 | int exec_state; |
| 108 | |
| 109 | /* bus base address of memory */ |
| 110 | u32 memory_base; |
| 111 | |
| 112 | /* event management: */ |
| 113 | struct etnaviv_event event[30]; |
| 114 | struct completion event_free; |
| 115 | spinlock_t event_spinlock; |
| 116 | |
| 117 | /* list of currently in-flight command buffers */ |
| 118 | struct list_head active_cmd_list; |
| 119 | |
| 120 | u32 idle_mask; |
| 121 | |
| 122 | /* Fencing support */ |
| 123 | u32 next_fence; |
| 124 | u32 active_fence; |
| 125 | u32 completed_fence; |
| 126 | u32 retired_fence; |
| 127 | wait_queue_head_t fence_event; |
| 128 | unsigned int fence_context; |
| 129 | spinlock_t fence_spinlock; |
| 130 | |
| 131 | /* worker for handling active-list retiring: */ |
| 132 | struct work_struct retire_work; |
| 133 | |
| 134 | void __iomem *mmio; |
| 135 | int irq; |
| 136 | |
| 137 | struct etnaviv_iommu *mmu; |
| 138 | |
| 139 | /* Power Control: */ |
| 140 | struct clk *clk_bus; |
| 141 | struct clk *clk_core; |
| 142 | struct clk *clk_shader; |
| 143 | |
| 144 | /* Hang Detction: */ |
| 145 | #define DRM_ETNAVIV_HANGCHECK_PERIOD 500 /* in ms */ |
| 146 | #define DRM_ETNAVIV_HANGCHECK_JIFFIES msecs_to_jiffies(DRM_ETNAVIV_HANGCHECK_PERIOD) |
| 147 | struct timer_list hangcheck_timer; |
| 148 | u32 hangcheck_fence; |
| 149 | u32 hangcheck_dma_addr; |
| 150 | struct work_struct recover_work; |
| 151 | }; |
| 152 | |
| 153 | struct etnaviv_cmdbuf { |
| 154 | /* device this cmdbuf is allocated for */ |
| 155 | struct etnaviv_gpu *gpu; |
| 156 | /* user context key, must be unique between all active users */ |
| 157 | struct etnaviv_file_private *ctx; |
| 158 | /* cmdbuf properties */ |
| 159 | void *vaddr; |
| 160 | dma_addr_t paddr; |
| 161 | u32 size; |
| 162 | u32 user_size; |
| 163 | /* fence after which this buffer is to be disposed */ |
| 164 | struct fence *fence; |
| 165 | /* target exec state */ |
| 166 | u32 exec_state; |
| 167 | /* per GPU in-flight list */ |
| 168 | struct list_head node; |
| 169 | /* BOs attached to this command buffer */ |
| 170 | unsigned int nr_bos; |
| 171 | struct etnaviv_vram_mapping *bo_map[0]; |
| 172 | }; |
| 173 | |
| 174 | static inline void gpu_write(struct etnaviv_gpu *gpu, u32 reg, u32 data) |
| 175 | { |
| 176 | etnaviv_writel(data, gpu->mmio + reg); |
| 177 | } |
| 178 | |
| 179 | static inline u32 gpu_read(struct etnaviv_gpu *gpu, u32 reg) |
| 180 | { |
| 181 | return etnaviv_readl(gpu->mmio + reg); |
| 182 | } |
| 183 | |
| 184 | static inline bool fence_completed(struct etnaviv_gpu *gpu, u32 fence) |
| 185 | { |
| 186 | return fence_after_eq(gpu->completed_fence, fence); |
| 187 | } |
| 188 | |
| 189 | static inline bool fence_retired(struct etnaviv_gpu *gpu, u32 fence) |
| 190 | { |
| 191 | return fence_after_eq(gpu->retired_fence, fence); |
| 192 | } |
| 193 | |
| 194 | int etnaviv_gpu_get_param(struct etnaviv_gpu *gpu, u32 param, u64 *value); |
| 195 | |
| 196 | int etnaviv_gpu_init(struct etnaviv_gpu *gpu); |
| 197 | |
| 198 | #ifdef CONFIG_DEBUG_FS |
| 199 | int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m); |
| 200 | #endif |
| 201 | |
| 202 | int etnaviv_gpu_fence_sync_obj(struct etnaviv_gem_object *etnaviv_obj, |
| 203 | unsigned int context, bool exclusive); |
| 204 | |
| 205 | void etnaviv_gpu_retire(struct etnaviv_gpu *gpu); |
| 206 | int etnaviv_gpu_wait_fence_interruptible(struct etnaviv_gpu *gpu, |
| 207 | u32 fence, struct timespec *timeout); |
| 208 | int etnaviv_gpu_wait_obj_inactive(struct etnaviv_gpu *gpu, |
| 209 | struct etnaviv_gem_object *etnaviv_obj, struct timespec *timeout); |
| 210 | int etnaviv_gpu_submit(struct etnaviv_gpu *gpu, |
| 211 | struct etnaviv_gem_submit *submit, struct etnaviv_cmdbuf *cmdbuf); |
| 212 | struct etnaviv_cmdbuf *etnaviv_gpu_cmdbuf_new(struct etnaviv_gpu *gpu, |
| 213 | u32 size, size_t nr_bos); |
| 214 | void etnaviv_gpu_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf); |
| 215 | int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu); |
| 216 | void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu); |
| 217 | |
| 218 | extern struct platform_driver etnaviv_gpu_driver; |
| 219 | |
| 220 | #endif /* __ETNAVIV_GPU_H__ */ |