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
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.
14 * 实现 rk30_platform 中的 platform_specific_strategy_callbacks,
15 * 实际上也是 platform_dependent_part 的顶层.
17 * mali_device_driver(mdd) 包含两部分 :
18 * .DP : platform_dependent_part :
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.
24 /* #define ENABLE_DEBUG_LOG */
25 #include "custom_log.h"
27 #include <linux/platform_device.h>
28 #include <linux/version.h>
30 #ifdef CONFIG_PM_RUNTIME
31 #include <linux/pm_runtime.h>
33 #include <linux/workqueue.h>
34 #include <linux/dma-mapping.h>
35 #include <linux/rockchip/cpu.h>
37 #include <linux/mali/mali_utgard.h>
38 #include "mali_kernel_common.h"
39 #include "mali_platform.h"
40 #include "arm_core_scaling.h"
42 #ifdef CONFIG_PM_RUNTIME
43 static int mali_runtime_suspend(struct device *device)
47 MALI_DEBUG_PRINT(4, ("mali_runtime_suspend() called\n"));
49 if (NULL != device->driver &&
50 NULL != device->driver->pm &&
51 NULL != device->driver->pm->runtime_suspend) {
52 /* Need to notify Mali driver about this event */
53 ret = device->driver->pm->runtime_suspend(device);
56 mali_platform_power_mode_change(MALI_POWER_MODE_LIGHT_SLEEP);
61 static int mali_runtime_resume(struct device *device)
65 MALI_DEBUG_PRINT(4, ("mali_runtime_resume() called\n"));
67 mali_platform_power_mode_change(MALI_POWER_MODE_ON);
69 if (NULL != device->driver &&
70 NULL != device->driver->pm &&
71 NULL != device->driver->pm->runtime_resume) {
72 /* Need to notify Mali driver about this event */
73 ret = device->driver->pm->runtime_resume(device);
79 static int mali_runtime_idle(struct device *device)
83 MALI_DEBUG_PRINT(4, ("mali_runtime_idle() called\n"));
85 if (NULL != device->driver &&
86 NULL != device->driver->pm &&
87 NULL != device->driver->pm->runtime_idle) {
88 /* Need to notify Mali driver about this event */
89 ret = device->driver->pm->runtime_idle(device);
94 pm_runtime_suspend(device);
100 static int mali_os_suspend(struct device *device)
104 MALI_DEBUG_PRINT(4, ("mali_os_suspend() called\n"));
106 if (NULL != device->driver &&
107 NULL != device->driver->pm &&
108 NULL != device->driver->pm->suspend) {
109 /* Need to notify Mali driver about this event */
110 ret = device->driver->pm->suspend(device);
113 mali_platform_power_mode_change(MALI_POWER_MODE_DEEP_SLEEP);
118 static int mali_os_resume(struct device *device)
122 MALI_DEBUG_PRINT(4, ("mali_os_resume() called\n"));
124 mali_platform_power_mode_change(MALI_POWER_MODE_ON);
126 if (NULL != device->driver &&
127 NULL != device->driver->pm &&
128 NULL != device->driver->pm->resume) {
129 /* Need to notify Mali driver about this event */
130 ret = device->driver->pm->resume(device);
136 static int mali_os_freeze(struct device *device)
140 MALI_DEBUG_PRINT(4, ("mali_os_freeze() called\n"));
142 if (NULL != device->driver &&
143 NULL != device->driver->pm &&
144 NULL != device->driver->pm->freeze) {
145 /* Need to notify Mali driver about this event */
146 ret = device->driver->pm->freeze(device);
152 static int mali_os_thaw(struct device *device)
156 MALI_DEBUG_PRINT(4, ("mali_os_thaw() called\n"));
158 if (NULL != device->driver &&
159 NULL != device->driver->pm &&
160 NULL != device->driver->pm->thaw) {
161 /* Need to notify Mali driver about this event */
162 ret = device->driver->pm->thaw(device);
168 static const struct dev_pm_ops mali_gpu_device_type_pm_ops = {
169 .suspend = mali_os_suspend,
170 .resume = mali_os_resume,
171 .freeze = mali_os_freeze,
172 .thaw = mali_os_thaw,
173 #ifdef CONFIG_PM_RUNTIME
174 .runtime_suspend = mali_runtime_suspend,
175 .runtime_resume = mali_runtime_resume,
176 .runtime_idle = mali_runtime_idle,
180 static const struct device_type mali_gpu_device_device_type = {
181 .pm = &mali_gpu_device_type_pm_ops,
185 * platform_specific_data_of_platform_device_of_mali_gpu.
187 * 类型 'struct mali_gpu_device_data' 由 common_part 定义,
188 * 实例也将被 common_part 引用,
189 * 比如通知 mali_utilization_event 等.
191 static const struct mali_gpu_device_data mali_gpu_data = {
192 .shared_mem_size = 1024 * 1024 * 1024, /* 1GB */
193 .fb_start = 0x40000000,
194 .fb_size = 0xb1000000,
195 .max_job_runtime = 60000, /* 60 seconds */
196 /* .utilization_interval = 0, */ /* 0ms */
197 .utilization_callback = mali_gpu_utilization_handler,
200 static void mali_platform_device_add_config(struct platform_device *pdev)
202 pdev->name = MALI_GPU_NAME_UTGARD,
204 pdev->dev.type = &mali_gpu_device_device_type;
205 pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask,
206 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
209 /*---------------------------------------------------------------------------*/
212 * 将被 common_part 回调的, 对 platform_device_of_mali_gpu 初始化的策略回调实现.
214 * .DP : platform_specific_strategy_callbacks_called_by_common_part,
215 * platform_specific_strategy_callbacks :
216 * 被 common_part 调用的 平台相关的策略回调.
218 int mali_platform_device_init(struct platform_device *pdev)
221 int num_pp_cores = 0;
223 MALI_DEBUG_PRINT(2, ("mali_platform_device_register() called\n"));
227 else if (cpu_is_rk3036())
229 else if (cpu_is_rk3188())
231 else if (cpu_is_rk3228())
234 mali_platform_device_add_config(pdev);
236 /* 将 platform_specific_data 添加到 platform_device_of_mali_gpu.
237 * 这里的 platform_specific_data 的类型由 common_part 定义. */
238 err = platform_device_add_data(pdev, &mali_gpu_data,
239 sizeof(mali_gpu_data));
241 /* .KP : 初始化 platform_device_of_mali_gpu 中,
242 * 仅和 platform_dependent_part 相关的部分. */
243 err = mali_platform_init(pdev);
245 #ifdef CONFIG_PM_RUNTIME
246 pm_runtime_set_autosuspend_delay(&(pdev->dev), 1000);
247 pm_runtime_use_autosuspend(&(pdev->dev));
248 pm_runtime_enable(&(pdev->dev));
250 MALI_DEBUG_ASSERT(0 < num_pp_cores);
251 mali_core_scaling_init(num_pp_cores);
260 * 将被 common_part 回调的, 对 platform_device_of_mali_gpu 终止化的策略回调实现.
262 void mali_platform_device_deinit(struct platform_device *pdev)
264 MALI_DEBUG_PRINT(4, ("mali_platform_device_unregister() called\n"));
266 mali_platform_deinit(pdev);