LXR linux/drivers/gpu/drm/etnaviv/etnaviv

   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
  14struct etnaviv_gem_submit;
  15struct etnaviv_vram_mapping;
  16
  17struct 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
  75enum etnaviv_sec_mode {
  76        ETNA_SEC_NONE = 0,
  77        ETNA_SEC_KERNEL,
  78        ETNA_SEC_TZ
  79};
  80
  81struct 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
  88struct etnaviv_cmdbuf_suballoc;
  89struct regulator;
  90struct clk;
  91
  92#define ETNA_NR_EVENTS 30
  93
  94struct 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        bool fe_running;
 105
 106        /* 'ring'-buffer: */
 107        struct etnaviv_cmdbuf buffer;
 108        int exec_state;
 109
 110        /* event management: */
 111        DECLARE_BITMAP(event_bitmap, ETNA_NR_EVENTS);
 112        struct etnaviv_event event[ETNA_NR_EVENTS];
 113        struct completion event_free;
 114        spinlock_t event_spinlock;
 115
 116        u32 idle_mask;
 117
 118        /* Fencing support */
 119        struct mutex fence_lock;
 120        struct idr fence_idr;
 121        u32 next_fence;
 122        u32 completed_fence;
 123        wait_queue_head_t fence_event;
 124        u64 fence_context;
 125        spinlock_t fence_spinlock;
 126
 127        /* worker for handling 'sync' points: */
 128        struct work_struct sync_point_work;
 129        int sync_point_event;
 130
 131        /* hang detection */
 132        u32 hangcheck_dma_addr;
 133        u32 hangcheck_fence;
 134
 135        void __iomem *mmio;
 136        int irq;
 137
 138        struct etnaviv_iommu_context *mmu_context;
 139        unsigned int flush_seq;
 140
 141        /* Power Control: */
 142        struct clk *clk_bus;
 143        struct clk *clk_reg;
 144        struct clk *clk_core;
 145        struct clk *clk_shader;
 146
 147        unsigned int freq_scale;
 148        unsigned long base_rate_core;
 149        unsigned long base_rate_shader;
 150};
 151
 152static inline void gpu_write(struct etnaviv_gpu *gpu, u32 reg, u32 data)
 153{
 154        writel(data, gpu->mmio + reg);
 155}
 156
 157static inline u32 gpu_read(struct etnaviv_gpu *gpu, u32 reg)
 158{
 159        return readl(gpu->mmio + reg);
 160}
 161
 162int etnaviv_gpu_get_param(struct etnaviv_gpu *gpu, u32 param, u64 *value);
 163
 164int etnaviv_gpu_init(struct etnaviv_gpu *gpu);
 165bool etnaviv_fill_identity_from_hwdb(struct etnaviv_gpu *gpu);
 166
 167#ifdef CONFIG_DEBUG_FS
 168int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m);
 169#endif
 170
 171void etnaviv_gpu_recover_hang(struct etnaviv_gpu *gpu);
 172void etnaviv_gpu_retire(struct etnaviv_gpu *gpu);
 173int etnaviv_gpu_wait_fence_interruptible(struct etnaviv_gpu *gpu,
 174        u32 fence, struct drm_etnaviv_timespec *timeout);
 175int etnaviv_gpu_wait_obj_inactive(struct etnaviv_gpu *gpu,
 176        struct etnaviv_gem_object *etnaviv_obj,
 177        struct drm_etnaviv_timespec *timeout);
 178struct dma_fence *etnaviv_gpu_submit(struct etnaviv_gem_submit *submit);
 179int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu);
 180void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu);
 181int etnaviv_gpu_wait_idle(struct etnaviv_gpu *gpu, unsigned int timeout_ms);
 182void etnaviv_gpu_start_fe(struct etnaviv_gpu *gpu, u32 address, u16 prefetch);
 183
 184extern struct platform_driver etnaviv_gpu_driver;
 185
 186#endif /* __ETNAVIV_GPU_H__ */
 187