MALI: utgard: upgrade DDK to r7p0-00rel0

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / arm / mali400 / mali / platform / rk30 / rk3066.c

diff --git a/drivers/gpu/arm/mali400/mali/platform/rk30/rk3066.c b/drivers/gpu/arm/mali400/mali/platform/rk30/rk3066.c
old mode 100755 (executable)
new mode 100644 (file)
index 7581721..91556e2
--- a/drivers/gpu/arm/mali400/mali/platform/rk30/rk3066.c
+++ b/drivers/gpu/arm/mali400/mali/platform/rk30/rk3066.c
@@ -7,26 +7,44 @@
  * copies and copies may only be made to the extent permitted
  * by a licensing agreement from ARM Limited.
  */
- 
+
+
+/**
+ * @file rk3066.c
+ * 实现 rk30_platform 中的 platform_specific_strategy_callbacks,
+ * 实际上也是 platform_dependent_part 的顶层.
+ *
+ * mali_device_driver(mdd) 包含两部分 :
+ *     .DP : platform_dependent_part :
+ *             依赖 platform 部分,
+ *             源码在 <mdd_src_dir>/mali/platform/<platform_name> 目录下.
+ *     .DP : common_parts : ARM 实现的通用的部分.
+ */
+
+#define ENABLE_DEBUG_LOG
+#include "custom_log.h"
+
 #include <linux/platform_device.h>
 #include <linux/version.h>
 #include <linux/pm.h>
+#include <linux/of.h>
 #ifdef CONFIG_PM_RUNTIME
 #include <linux/pm_runtime.h>
 #endif
 #include <linux/workqueue.h>
 #include <linux/dma-mapping.h>
+#include <linux/pm_runtime.h>
 #include <linux/rockchip/cpu.h>
 
 #include <linux/mali/mali_utgard.h>
 #include "mali_kernel_common.h"
 #include "mali_platform.h"
-#include "arm_core_scaling.h"
 
 #ifdef CONFIG_PM_RUNTIME
 static int mali_runtime_suspend(struct device *device)
 {
        int ret = 0;
+
        MALI_DEBUG_PRINT(4, ("mali_runtime_suspend() called\n"));
 
        if (NULL != device->driver &&
@@ -44,6 +62,7 @@ static int mali_runtime_suspend(struct device *device)
 static int mali_runtime_resume(struct device *device)
 {
        int ret = 0;
+
        MALI_DEBUG_PRINT(4, ("mali_runtime_resume() called\n"));
 
        mali_platform_power_mode_change(MALI_POWER_MODE_ON);
@@ -61,6 +80,7 @@ static int mali_runtime_resume(struct device *device)
 static int mali_runtime_idle(struct device *device)
 {
        int ret = 0;
+
        MALI_DEBUG_PRINT(4, ("mali_runtime_idle() called\n"));
 
        if (NULL != device->driver &&
@@ -83,7 +103,7 @@ static int mali_os_suspend(struct device *device)
        int ret = 0;
 
        MALI_DEBUG_PRINT(4, ("mali_os_suspend() called\n"));
-       
+
        if (NULL != device->driver &&
            NULL != device->driver->pm &&
            NULL != device->driver->pm->suspend) {
@@ -146,8 +166,7 @@ static int mali_os_thaw(struct device *device)
        return ret;
 }
 
-static struct dev_pm_ops mali_gpu_device_type_pm_ops =
-{
+static const struct dev_pm_ops mali_gpu_device_type_pm_ops = {
        .suspend = mali_os_suspend,
        .resume = mali_os_resume,
        .freeze = mali_os_freeze,
@@ -159,18 +178,23 @@ static struct dev_pm_ops mali_gpu_device_type_pm_ops =
 #endif
 };
 
-static struct device_type mali_gpu_device_device_type =
-{
+static const struct device_type mali_gpu_device_device_type = {
        .pm = &mali_gpu_device_type_pm_ops,
 };
 
-static struct mali_gpu_device_data mali_gpu_data =
-{
-       .shared_mem_size = 1024* 1024 * 1024, /* 1GB */
+/**
+ * platform_specific_data_of_platform_device_of_mali_gpu.
+ *
+ * 类型 'struct mali_gpu_device_data' 由 common_part 定义,
+ * 实例也将被 common_part 引用,
+ * 比如通知 mali_utilization_event 等.
+ */
+static const struct mali_gpu_device_data mali_gpu_data = {
+       .shared_mem_size = 1024 * 1024 * 1024, /* 1GB */
        .fb_start = 0x40000000,
        .fb_size = 0xb1000000,
-       .max_job_runtime = 60000, /* 60 seconds */
-       //.utilization_interval = 0, /* 0ms */
+       .max_job_runtime = 100, /* 100 ms */
+       /* .utilization_interval = 0, */ /* 0ms */
        .utilization_callback = mali_gpu_utilization_handler,
 };
 
@@ -183,36 +207,35 @@ static void mali_platform_device_add_config(struct platform_device *pdev)
        pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 }
 
+/*---------------------------------------------------------------------------*/
+
+/**
+ * 将被 common_part 回调的, 对 platform_device_of_mali_gpu 初始化的策略回调实现.
+ *
+ * .DP : platform_specific_strategy_callbacks_called_by_common_part,
+ *       platform_specific_strategy_callbacks :
+ *              被 common_part 调用的 平台相关的策略回调.
+ */
 int mali_platform_device_init(struct platform_device *pdev)
 {
        int err = 0;
-       int num_pp_cores = 0;
-       MALI_DEBUG_PRINT(2,("mali_platform_device_register() called\n"));
-
-       if (cpu_is_rk312x())
-               num_pp_cores = 2;
-       else if (cpu_is_rk3036())
-               num_pp_cores = 1;
-       else if (cpu_is_rk3188())
-               num_pp_cores = 4;
-
-       mali_platform_device_add_config(pdev);
 
+       D("to add data to platform_device..");
+       /* 将 platform_specific_data 添加到 platform_device_of_mali_gpu.
+        * 这里的 platform_specific_data 的类型由 common_part 定义. */
        err = platform_device_add_data(pdev, &mali_gpu_data,
                                       sizeof(mali_gpu_data));
        if (err == 0) {
+               D("to init internal_platform_specific_code.");
+               /* .KP : 初始化 platform_device_of_mali_gpu 中,
+                * 仅和 platform_dependent_part 相关的部分. */
                err = mali_platform_init(pdev);
                if (err == 0) {
-
 #ifdef CONFIG_PM_RUNTIME
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
                        pm_runtime_set_autosuspend_delay(&(pdev->dev), 1000);
                        pm_runtime_use_autosuspend(&(pdev->dev));
-#endif
                        pm_runtime_enable(&(pdev->dev));
 #endif
-                       MALI_DEBUG_ASSERT(0 < num_pp_cores);
-                       mali_core_scaling_init(num_pp_cores);
                        return 0;
                }
        }
@@ -220,6 +243,9 @@ int mali_platform_device_init(struct platform_device *pdev)
        return err;
 }
 
+/**
+ * 将被 common_part 回调的, 对 platform_device_of_mali_gpu 终止化的策略回调实现.
+ */
 void mali_platform_device_deinit(struct platform_device *pdev)
 {
        MALI_DEBUG_PRINT(4, ("mali_platform_device_unregister() called\n"));