1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2015-2018 Etnaviv Project
6 #ifndef __ETNAVIV_GPU_H__
7 #define __ETNAVIV_GPU_H__
9 #include "etnaviv_cmdbuf.h"
10 #include "etnaviv_gem.h"
11 #include "etnaviv_mmu.h"
12 #include "etnaviv_drv.h"
13 #include "common.xml.h"
15 struct etnaviv_gem_submit;
16 struct etnaviv_vram_mapping;
18 struct etnaviv_chip_identity {
25 /* Supported feature fields. */
28 /* Supported minor feature fields. */
42 /* Number of streams supported. */
45 /* Total number of temporary registers per thread. */
48 /* Maximum number of threads. */
51 /* Number of shader cores. */
52 u32 shader_core_count;
54 /* Number of Neural Network cores. */
57 /* Number of MAD units per Neural Network core. */
60 /* Number of Tensor Processing cores. */
63 /* Size in bytes of the SRAM inside the NPU. */
64 u32 on_chip_sram_size;
66 /* Size in bytes of the SRAM across the AXI bus. */
69 /* Size of the vertex cache. */
70 u32 vertex_cache_size;
72 /* Number of entries in the vertex output buffer. */
73 u32 vertex_output_buffer_size;
75 /* Number of pixel pipes. */
78 /* Number of instructions. */
79 u32 instruction_count;
81 /* Number of constants. */
87 /* Number of varyings */
91 enum etnaviv_sec_mode {
97 struct etnaviv_event {
98 struct dma_fence *fence;
99 struct etnaviv_gem_submit *submit;
101 void (*sync_point)(struct etnaviv_gpu *gpu, struct etnaviv_event *event);
104 struct etnaviv_cmdbuf_suballoc;
108 #define ETNA_NR_EVENTS 30
110 enum etnaviv_gpu_state {
111 ETNA_GPU_STATE_UNKNOWN = 0,
112 ETNA_GPU_STATE_IDENTIFIED,
113 ETNA_GPU_STATE_RESET,
114 ETNA_GPU_STATE_INITIALIZED,
115 ETNA_GPU_STATE_RUNNING,
116 ETNA_GPU_STATE_FAULT,
120 struct drm_device *drm;
121 struct thermal_cooling_device *cooling;
124 struct etnaviv_chip_identity identity;
125 enum etnaviv_sec_mode sec_mode;
126 struct workqueue_struct *wq;
127 struct mutex sched_lock;
128 struct drm_gpu_scheduler sched;
129 enum etnaviv_gpu_state state;
132 struct etnaviv_cmdbuf buffer;
135 /* event management: */
136 DECLARE_BITMAP(event_bitmap, ETNA_NR_EVENTS);
137 struct etnaviv_event event[ETNA_NR_EVENTS];
138 struct completion event_free;
139 spinlock_t event_spinlock;
143 /* Fencing support */
144 struct xarray user_fences;
148 wait_queue_head_t fence_event;
150 spinlock_t fence_spinlock;
152 /* worker for handling 'sync' points: */
153 struct work_struct sync_point_work;
154 int sync_point_event;
157 u32 hangcheck_dma_addr;
163 struct etnaviv_iommu_context *mmu_context;
164 unsigned int flush_seq;
169 struct clk *clk_core;
170 struct clk *clk_shader;
172 unsigned int freq_scale;
173 unsigned int fe_waitcycles;
174 unsigned long base_rate_core;
175 unsigned long base_rate_shader;
178 static inline void gpu_write(struct etnaviv_gpu *gpu, u32 reg, u32 data)
180 writel(data, gpu->mmio + reg);
183 static inline u32 gpu_read(struct etnaviv_gpu *gpu, u32 reg)
185 return readl(gpu->mmio + reg);
188 static inline u32 gpu_fix_power_address(struct etnaviv_gpu *gpu, u32 reg)
190 /* Power registers in GC300 < 2.0 are offset by 0x100 */
191 if (gpu->identity.model == chipModel_GC300 &&
192 gpu->identity.revision < 0x2000)
198 static inline void gpu_write_power(struct etnaviv_gpu *gpu, u32 reg, u32 data)
200 writel(data, gpu->mmio + gpu_fix_power_address(gpu, reg));
203 static inline u32 gpu_read_power(struct etnaviv_gpu *gpu, u32 reg)
205 return readl(gpu->mmio + gpu_fix_power_address(gpu, reg));
208 int etnaviv_gpu_get_param(struct etnaviv_gpu *gpu, u32 param, u64 *value);
210 int etnaviv_gpu_init(struct etnaviv_gpu *gpu);
211 bool etnaviv_fill_identity_from_hwdb(struct etnaviv_gpu *gpu);
213 #ifdef CONFIG_DEBUG_FS
214 int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m);
217 void etnaviv_gpu_recover_hang(struct etnaviv_gem_submit *submit);
218 void etnaviv_gpu_retire(struct etnaviv_gpu *gpu);
219 int etnaviv_gpu_wait_fence_interruptible(struct etnaviv_gpu *gpu,
220 u32 fence, struct drm_etnaviv_timespec *timeout);
221 int etnaviv_gpu_wait_obj_inactive(struct etnaviv_gpu *gpu,
222 struct etnaviv_gem_object *etnaviv_obj,
223 struct drm_etnaviv_timespec *timeout);
224 struct dma_fence *etnaviv_gpu_submit(struct etnaviv_gem_submit *submit);
225 int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu);
226 void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu);
227 int etnaviv_gpu_wait_idle(struct etnaviv_gpu *gpu, unsigned int timeout_ms);
228 void etnaviv_gpu_start_fe(struct etnaviv_gpu *gpu, u32 address, u16 prefetch);
230 extern struct platform_driver etnaviv_gpu_driver;
232 #endif /* __ETNAVIV_GPU_H__ */