drivers/gpu/arm/mali400/mali/platform/rk30/rk3066.c

   1 /*
   2  * This confidential and proprietary software may be used only as
   3  * authorised by a licensing agreement from ARM Limited
   4  * (C) COPYRIGHT 2009-2010, 2012 ARM Limited
   5  * ALL RIGHTS RESERVED
   6  * The entire notice above must be reproduced on all authorised
   7  * copies and copies may only be made to the extent permitted
   8  * by a licensing agreement from ARM Limited.
   9  */
  10
  11
  12 /**
  13  * @file rk3066.c
  14  * 实现 rk30_platform 中的 platform_specific_strategy_callbacks,
  15  * 实际上也是 platform_dependent_part 的顶层.
  16  *
  17  * mali_device_driver(mdd) 包含两部分 :
  18  *      .DP : platform_dependent_part :
  19  *              依赖 platform 部分,
  20  *              源码在 <mdd_src_dir>/mali/platform/<platform_name> 目录下.
  21  *      .DP : common_parts : ARM 实现的通用的部分.
  22  */
  23
  24 #define ENABLE_DEBUG_LOG
  25 #include "custom_log.h"
  26
  27 #include <linux/platform_device.h>
  28 #include <linux/version.h>
  29 #include <linux/pm.h>
  30 #ifdef CONFIG_PM_RUNTIME
  31 #include <linux/pm_runtime.h>
  32 #endif
  33 #include <linux/workqueue.h>
  34 #include <linux/dma-mapping.h>
  35 #include <linux/pm_runtime.h>
  36 #include <linux/rockchip/cpu.h>
  37
  38 #include <linux/mali/mali_utgard.h>
  39 #include "mali_kernel_common.h"
  40 #include "mali_platform.h"
  41 #include "arm_core_scaling.h"
  42
  43 #ifdef CONFIG_PM_RUNTIME
  44 static int mali_runtime_suspend(struct device *device)
  45 {
  46         int ret = 0;
  47
  48         MALI_DEBUG_PRINT(4, ("mali_runtime_suspend() called\n"));
  49
  50         if (NULL != device->driver &&
  51             NULL != device->driver->pm &&
  52             NULL != device->driver->pm->runtime_suspend) {
  53                 /* Need to notify Mali driver about this event */
  54                 ret = device->driver->pm->runtime_suspend(device);
  55         }
  56
  57         mali_platform_power_mode_change(MALI_POWER_MODE_LIGHT_SLEEP);
  58
  59         return ret;
  60 }
  61
  62 static int mali_runtime_resume(struct device *device)
  63 {
  64         int ret = 0;
  65
  66         MALI_DEBUG_PRINT(4, ("mali_runtime_resume() called\n"));
  67
  68         mali_platform_power_mode_change(MALI_POWER_MODE_ON);
  69
  70         if (NULL != device->driver &&
  71             NULL != device->driver->pm &&
  72             NULL != device->driver->pm->runtime_resume) {
  73                 /* Need to notify Mali driver about this event */
  74                 ret = device->driver->pm->runtime_resume(device);
  75         }
  76
  77         return ret;
  78 }
  79
  80 static int mali_runtime_idle(struct device *device)
  81 {
  82         int ret = 0;
  83
  84         MALI_DEBUG_PRINT(4, ("mali_runtime_idle() called\n"));
  85
  86         if (NULL != device->driver &&
  87             NULL != device->driver->pm &&
  88             NULL != device->driver->pm->runtime_idle) {
  89                 /* Need to notify Mali driver about this event */
  90                 ret = device->driver->pm->runtime_idle(device);
  91                 if (0 != ret)
  92                         return ret;
  93         }
  94
  95         pm_runtime_suspend(device);
  96
  97         return 0;
  98 }
  99 #endif
 100
 101 static int mali_os_suspend(struct device *device)
 102 {
 103         int ret = 0;
 104
 105         MALI_DEBUG_PRINT(4, ("mali_os_suspend() called\n"));
 106
 107         if (NULL != device->driver &&
 108             NULL != device->driver->pm &&
 109             NULL != device->driver->pm->suspend) {
 110                 /* Need to notify Mali driver about this event */
 111                 ret = device->driver->pm->suspend(device);
 112         }
 113
 114         mali_platform_power_mode_change(MALI_POWER_MODE_DEEP_SLEEP);
 115
 116         return ret;
 117 }
 118
 119 static int mali_os_resume(struct device *device)
 120 {
 121         int ret = 0;
 122
 123         MALI_DEBUG_PRINT(4, ("mali_os_resume() called\n"));
 124
 125         mali_platform_power_mode_change(MALI_POWER_MODE_ON);
 126
 127         if (NULL != device->driver &&
 128             NULL != device->driver->pm &&
 129             NULL != device->driver->pm->resume) {
 130                 /* Need to notify Mali driver about this event */
 131                 ret = device->driver->pm->resume(device);
 132         }
 133
 134         return ret;
 135 }
 136
 137 static int mali_os_freeze(struct device *device)
 138 {
 139         int ret = 0;
 140
 141         MALI_DEBUG_PRINT(4, ("mali_os_freeze() called\n"));
 142
 143         if (NULL != device->driver &&
 144             NULL != device->driver->pm &&
 145             NULL != device->driver->pm->freeze) {
 146                 /* Need to notify Mali driver about this event */
 147                 ret = device->driver->pm->freeze(device);
 148         }
 149
 150         return ret;
 151 }
 152
 153 static int mali_os_thaw(struct device *device)
 154 {
 155         int ret = 0;
 156
 157         MALI_DEBUG_PRINT(4, ("mali_os_thaw() called\n"));
 158
 159         if (NULL != device->driver &&
 160             NULL != device->driver->pm &&
 161             NULL != device->driver->pm->thaw) {
 162                 /* Need to notify Mali driver about this event */
 163                 ret = device->driver->pm->thaw(device);
 164         }
 165
 166         return ret;
 167 }
 168
 169 static const struct dev_pm_ops mali_gpu_device_type_pm_ops = {
 170         .suspend = mali_os_suspend,
 171         .resume = mali_os_resume,
 172         .freeze = mali_os_freeze,
 173         .thaw = mali_os_thaw,
 174 #ifdef CONFIG_PM_RUNTIME
 175         .runtime_suspend = mali_runtime_suspend,
 176         .runtime_resume = mali_runtime_resume,
 177         .runtime_idle = mali_runtime_idle,
 178 #endif
 179 };
 180
 181 static const struct device_type mali_gpu_device_device_type = {
 182         .pm = &mali_gpu_device_type_pm_ops,
 183 };
 184
 185 /**
 186  * platform_specific_data_of_platform_device_of_mali_gpu.
 187  *
 188  * 类型 'struct mali_gpu_device_data' 由 common_part 定义,
 189  * 实例也将被 common_part 引用,
 190  * 比如通知 mali_utilization_event 等.
 191  */
 192 static const struct mali_gpu_device_data mali_gpu_data = {
 193         .shared_mem_size = 1024 * 1024 * 1024, /* 1GB */
 194         .fb_start = 0x40000000,
 195         .fb_size = 0xb1000000,
 196         .max_job_runtime = 100, /* 100 ms */
 197         /* .utilization_interval = 0, */ /* 0ms */
 198         .utilization_callback = mali_gpu_utilization_handler,
 199 };
 200
 201 static void mali_platform_device_add_config(struct platform_device *pdev)
 202 {
 203         pdev->name = MALI_GPU_NAME_UTGARD,
 204         pdev->id = 0;
 205         pdev->dev.type = &mali_gpu_device_device_type;
 206         pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask,
 207         pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 208 }
 209
 210 /*---------------------------------------------------------------------------*/
 211
 212 /**
 213  * 将被 common_part 回调的, 对 platform_device_of_mali_gpu 初始化的策略回调实现.
 214  *
 215  * .DP : platform_specific_strategy_callbacks_called_by_common_part,
 216  *       platform_specific_strategy_callbacks :
 217  *              被 common_part 调用的 平台相关的策略回调.
 218  */
 219 int mali_platform_device_init(struct platform_device *pdev)
 220 {
 221 // error
 222         int err = 0;
 223         int num_pp_cores = 0;
 224
 225         D("mali_platform_device_register() called\n");
 226
 227         /*
 228         if (cpu_is_rk312x())
 229                 num_pp_cores = 2;
 230         else if (cpu_is_rk3036())
 231         */
 232                 num_pp_cores = 1;
 233         /*
 234         else if (cpu_is_rk3188())
 235                 num_pp_cores = 4;
 236         else if (cpu_is_rk3228())
 237                 num_pp_cores = 2;
 238         */
 239
 240         D("to add config.");
 241         mali_platform_device_add_config(pdev);
 242
 243         D("to add data to platform_device..");
 244         /* 将 platform_specific_data 添加到 platform_device_of_mali_gpu.
 245          * 这里的 platform_specific_data 的类型由 common_part 定义. */
 246         err = platform_device_add_data(pdev, &mali_gpu_data,
 247                                        sizeof(mali_gpu_data));
 248         if (err == 0) {
 249                 D("to init internal_platform_specific_code.");
 250                 /* .KP : 初始化 platform_device_of_mali_gpu 中,
 251                  * 仅和 platform_dependent_part 相关的部分. */
 252                 err = mali_platform_init(pdev);
 253                 if (err == 0) {
 254 #ifdef CONFIG_PM_RUNTIME
 255                         pm_runtime_set_autosuspend_delay(&(pdev->dev), 1000);
 256                         pm_runtime_use_autosuspend(&(pdev->dev));
 257                         pm_runtime_enable(&(pdev->dev));
 258 #endif
 259                         MALI_DEBUG_ASSERT(0 < num_pp_cores);
 260                         mali_core_scaling_init(num_pp_cores);
 261                         return 0;
 262                 }
 263         }
 264
 265         return err;
 266 }
 267
 268 /**
 269  * 将被 common_part 回调的, 对 platform_device_of_mali_gpu 终止化的策略回调实现.
 270  */
 271 void mali_platform_device_deinit(struct platform_device *pdev)
 272 {
 273         MALI_DEBUG_PRINT(4, ("mali_platform_device_unregister() called\n"));
 274
 275         mali_platform_deinit(pdev);
 276 }