drivers/gpu/drm/etnaviv/etnaviv_gpu.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2015-2018 Etnaviv Project
   4  */
   5
   6 #ifndef __ETNAVIV_GPU_H__
   7 #define __ETNAVIV_GPU_H__
   8
   9 #include "etnaviv_cmdbuf.h"
  10 #include "etnaviv_gem.h"
  11 #include "etnaviv_mmu.h"
  12 #include "etnaviv_drv.h"
  13
  14 struct etnaviv_gem_submit;
  15 struct etnaviv_vram_mapping;
  16
  17 struct etnaviv_chip_identity {
  18         u32 model;
  19         u32 revision;
  20         u32 product_id;
  21         u32 customer_id;
  22         u32 eco_id;
  23
  24         /* Supported feature fields. */
  25         u32 features;
  26
  27         /* Supported minor feature fields. */
  28         u32 minor_features0;
  29         u32 minor_features1;
  30         u32 minor_features2;
  31         u32 minor_features3;
  32         u32 minor_features4;
  33         u32 minor_features5;
  34         u32 minor_features6;
  35         u32 minor_features7;
  36         u32 minor_features8;
  37         u32 minor_features9;
  38         u32 minor_features10;
  39         u32 minor_features11;
  40
  41         /* Number of streams supported. */
  42         u32 stream_count;
  43
  44         /* Total number of temporary registers per thread. */
  45         u32 register_max;
  46
  47         /* Maximum number of threads. */
  48         u32 thread_count;
  49
  50         /* Number of shader cores. */
  51         u32 shader_core_count;
  52
  53         /* Size of the vertex cache. */
  54         u32 vertex_cache_size;
  55
  56         /* Number of entries in the vertex output buffer. */
  57         u32 vertex_output_buffer_size;
  58
  59         /* Number of pixel pipes. */
  60         u32 pixel_pipes;
  61
  62         /* Number of instructions. */
  63         u32 instruction_count;
  64
  65         /* Number of constants. */
  66         u32 num_constants;
  67
  68         /* Buffer size */
  69         u32 buffer_size;
  70
  71         /* Number of varyings */
  72         u8 varyings_count;
  73 };
  74
  75 enum etnaviv_sec_mode {
  76         ETNA_SEC_NONE = 0,
  77         ETNA_SEC_KERNEL,
  78         ETNA_SEC_TZ
  79 };
  80
  81 struct etnaviv_event {
  82         struct dma_fence *fence;
  83         struct etnaviv_gem_submit *submit;
  84
  85         void (*sync_point)(struct etnaviv_gpu *gpu, struct etnaviv_event *event);
  86 };
  87
  88 struct etnaviv_cmdbuf_suballoc;
  89 struct regulator;
  90 struct clk;
  91
  92 #define ETNA_NR_EVENTS 30
  93
  94 struct etnaviv_gpu {
  95         struct drm_device *drm;
  96         struct thermal_cooling_device *cooling;
  97         struct device *dev;
  98         struct mutex lock;
  99         struct etnaviv_chip_identity identity;
 100         enum etnaviv_sec_mode sec_mode;
 101         struct workqueue_struct *wq;
 102         struct drm_gpu_scheduler sched;
 103         bool initialized;
 104
 105         /* 'ring'-buffer: */
 106         struct etnaviv_cmdbuf buffer;
 107         int exec_state;
 108
 109         /* event management: */
 110         DECLARE_BITMAP(event_bitmap, ETNA_NR_EVENTS);
 111         struct etnaviv_event event[ETNA_NR_EVENTS];
 112         struct completion event_free;
 113         spinlock_t event_spinlock;
 114
 115         u32 idle_mask;
 116
 117         /* Fencing support */
 118         struct mutex fence_lock;
 119         struct idr fence_idr;
 120         u32 next_fence;
 121         u32 completed_fence;
 122         wait_queue_head_t fence_event;
 123         u64 fence_context;
 124         spinlock_t fence_spinlock;
 125
 126         /* worker for handling 'sync' points: */
 127         struct work_struct sync_point_work;
 128         int sync_point_event;
 129
 130         /* hang detection */
 131         u32 hangcheck_dma_addr;
 132
 133         void __iomem *mmio;
 134         int irq;
 135
 136         struct etnaviv_iommu_context *mmu_context;
 137         unsigned int flush_seq;
 138
 139         /* Power Control: */
 140         struct clk *clk_bus;
 141         struct clk *clk_reg;
 142         struct clk *clk_core;
 143         struct clk *clk_shader;
 144
 145         unsigned int freq_scale;
 146         unsigned long base_rate_core;
 147         unsigned long base_rate_shader;
 148 };
 149
 150 static inline void gpu_write(struct etnaviv_gpu *gpu, u32 reg, u32 data)
 151 {
 152         writel(data, gpu->mmio + reg);
 153 }
 154
 155 static inline u32 gpu_read(struct etnaviv_gpu *gpu, u32 reg)
 156 {
 157         return readl(gpu->mmio + reg);
 158 }
 159
 160 int etnaviv_gpu_get_param(struct etnaviv_gpu *gpu, u32 param, u64 *value);
 161
 162 int etnaviv_gpu_init(struct etnaviv_gpu *gpu);
 163 bool etnaviv_fill_identity_from_hwdb(struct etnaviv_gpu *gpu);
 164
 165 #ifdef CONFIG_DEBUG_FS
 166 int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m);
 167 #endif
 168
 169 void etnaviv_gpu_recover_hang(struct etnaviv_gpu *gpu);
 170 void etnaviv_gpu_retire(struct etnaviv_gpu *gpu);
 171 int etnaviv_gpu_wait_fence_interruptible(struct etnaviv_gpu *gpu,
 172         u32 fence, struct drm_etnaviv_timespec *timeout);
 173 int etnaviv_gpu_wait_obj_inactive(struct etnaviv_gpu *gpu,
 174         struct etnaviv_gem_object *etnaviv_obj,
 175         struct drm_etnaviv_timespec *timeout);
 176 struct dma_fence *etnaviv_gpu_submit(struct etnaviv_gem_submit *submit);
 177 int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu);
 178 void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu);
 179 int etnaviv_gpu_wait_idle(struct etnaviv_gpu *gpu, unsigned int timeout_ms);
 180 void etnaviv_gpu_start_fe(struct etnaviv_gpu *gpu, u32 address, u16 prefetch);
 181
 182 extern struct platform_driver etnaviv_gpu_driver;
 183
 184 #endif /* __ETNAVIV_GPU_H__ */