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>
31 #ifdef CONFIG_PM_RUNTIME
32 #include <linux/pm_runtime.h>
34 #include <linux/workqueue.h>
35 #include <linux/dma-mapping.h>
36 #include <linux/pm_runtime.h>
37 #include <linux/rockchip/cpu.h>
39 #include <linux/mali/mali_utgard.h>
40 #include "mali_kernel_common.h"
41 #include "mali_platform.h"
43 #ifdef CONFIG_PM_RUNTIME
44 static int mali_runtime_suspend(struct device *device)
48 MALI_DEBUG_PRINT(4, ("mali_runtime_suspend() called\n"));
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);
57 mali_platform_power_mode_change(MALI_POWER_MODE_LIGHT_SLEEP);
62 static int mali_runtime_resume(struct device *device)
66 MALI_DEBUG_PRINT(4, ("mali_runtime_resume() called\n"));
68 mali_platform_power_mode_change(MALI_POWER_MODE_ON);
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);
80 static int mali_runtime_idle(struct device *device)
84 MALI_DEBUG_PRINT(4, ("mali_runtime_idle() called\n"));
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);
95 pm_runtime_suspend(device);
101 static int mali_os_suspend(struct device *device)
105 MALI_DEBUG_PRINT(4, ("mali_os_suspend() called\n"));
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);
114 mali_platform_power_mode_change(MALI_POWER_MODE_DEEP_SLEEP);
119 static int mali_os_resume(struct device *device)
123 MALI_DEBUG_PRINT(4, ("mali_os_resume() called\n"));
125 mali_platform_power_mode_change(MALI_POWER_MODE_ON);
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);
137 static int mali_os_freeze(struct device *device)
141 MALI_DEBUG_PRINT(4, ("mali_os_freeze() called\n"));
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);
153 static int mali_os_thaw(struct device *device)
157 MALI_DEBUG_PRINT(4, ("mali_os_thaw() called\n"));
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);
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,
181 static const struct device_type mali_gpu_device_device_type = {
182 .pm = &mali_gpu_device_type_pm_ops,
186 * platform_specific_data_of_platform_device_of_mali_gpu.
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.
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,
201 static void mali_platform_device_add_config(struct platform_device *pdev)
203 pdev->name = MALI_GPU_NAME_UTGARD,
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);
210 /*---------------------------------------------------------------------------*/
213 * 将被 common_part 回调的, 对 platform_device_of_mali_gpu 初始化的策略回调实现.
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.
219 int mali_platform_device_init(struct platform_device *pdev)
223 D("to add data to platform_device..");
224 /* 将 platform_specific_data 添加到 platform_device_of_mali_gpu.
225 * 这里的 platform_specific_data 的类型由 common_part 定义. */
226 err = platform_device_add_data(pdev, &mali_gpu_data,
227 sizeof(mali_gpu_data));
229 D("to init internal_platform_specific_code.");
230 /* .KP : 初始化 platform_device_of_mali_gpu 中,
231 * 仅和 platform_dependent_part 相关的部分. */
232 err = mali_platform_init(pdev);
234 #ifdef CONFIG_PM_RUNTIME
235 pm_runtime_set_autosuspend_delay(&(pdev->dev), 1000);
236 pm_runtime_use_autosuspend(&(pdev->dev));
237 pm_runtime_enable(&(pdev->dev));
247 * 将被 common_part 回调的, 对 platform_device_of_mali_gpu 终止化的策略回调实现.
249 void mali_platform_device_deinit(struct platform_device *pdev)
251 MALI_DEBUG_PRINT(4, ("mali_platform_device_unregister() called\n"));
253 mali_platform_deinit(pdev);