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gpu: add power open/close support

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This commit is contained in:
杜坤明
2011-03-18 18:12:06 +08:00
parent 258531e347
commit e104972abb
2 changed files with 54 additions and 30 deletions
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67
drivers/staging/rk29/vivante/hal/os/linux/kernel/gc_hal_kernel_driver.c
View File

@@ -36,6 +36,7 @@
#endif
#include <mach/rk29_iomap.h>
#include <mach/cru.h>
#include <mach/pmu.h>
MODULE_DESCRIPTION("Vivante Graphics Driver");
MODULE_LICENSE("GPL");
@@ -85,6 +86,8 @@ unsigned long coreClock = 552*1000000;
module_param(coreClock, ulong, 0644);
#endif
int shutdown = 0;
static int drv_open(struct inode *inode, struct file *filp);
static int drv_release(struct inode *inode, struct file *filp);
static int drv_ioctl(struct inode *inode, struct file *filp,
@@ -254,6 +257,11 @@ int drv_ioctl(struct inode *inode,
private = filp->private_data;
if(shutdown)
{
return -ENOTTY;
}
if (private == gcvNULL)
{
gcmkTRACE_ZONE(gcvLEVEL_ERROR, gcvZONE_DRIVER,
@@ -573,16 +581,15 @@ static int drv_init(void)
// enable ram clock gate
writel(readl(RK29_GRF_BASE+0xc0) & ~0x100000, RK29_GRF_BASE+0xc0);
#if 1
mdelay(2);
printk("%s : gpu reset... ", __func__);
cru_set_soft_reset(SOFT_RST_GPU, true);
cru_set_soft_reset(SOFT_RST_DDR_GPU_PORT, true);
mdelay(1);
cru_set_soft_reset(SOFT_RST_DDR_GPU_PORT, false);
cru_set_soft_reset(SOFT_RST_GPU, false);
#if 0
// power on gpu
printk("%s : gpu power on... ", __func__);
clk_disable(clk_get(NULL, "aclk_ddr_gpu"));
udelay(10);
pmu_set_power_domain(PD_GPU, true);
udelay(10);
clk_enable(clk_get(NULL, "aclk_ddr_gpu"));
printk("done!\n");
mdelay(2);
#endif
printk("%s : gpu clk_disable... ", __func__);
@@ -726,25 +733,35 @@ static void drv_exit(void)
unregister_chrdev(major, DRV_NAME);
#endif
mdelay(50);
shutdown = 1;
msleep(50);
gckGALDEVICE_Stop(galDevice);
mdelay(50);
msleep(50);
gckGALDEVICE_Destroy(galDevice);
mdelay(50);
msleep(50);
#if ENABLE_GPU_CLOCK_BY_DRIVER && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
printk("gpu: %s clk_disable... ", __func__);
clk_gpu = clk_get(NULL, "gpu");
if(!IS_ERR(clk_gpu)) clk_disable(clk_gpu);
clk_aclk_gpu = clk_get(NULL, "aclk_gpu");
if(!IS_ERR(clk_aclk_gpu)) clk_disable(clk_aclk_gpu);
printk("%s : gpu power off... ", __func__);
pmu_set_power_domain(PD_GPU, false);
printk("done!\n");
msleep(10);
printk("%s : gpu clk_disable... ", __func__);
clk_hclk_gpu = clk_get(NULL, "hclk_gpu");
if(!IS_ERR(clk_hclk_gpu)) clk_disable(clk_hclk_gpu);
clk_disable(clk_get(NULL, "aclk_ddr_gpu"));
clk_aclk_gpu = clk_get(NULL, "aclk_gpu");
if(!IS_ERR(clk_aclk_gpu)) clk_disable(clk_aclk_gpu);
clk_gpu = clk_get(NULL, "gpu");
if(!IS_ERR(clk_gpu)) clk_disable(clk_gpu);
printk("done!\n");
msleep(10);
#endif
}
@@ -768,9 +785,9 @@ static void gpu_early_suspend(struct early_suspend *h)
printk("Enter %s \n", __func__);
mdelay(50); //Wait for gpu finish
msleep(50); //Wait for gpu finish
status = gckHARDWARE_SetPowerManagementState(galDevice->kernel->hardware, gcvPOWER_SUSPEND);
status = gckHARDWARE_SetPowerManagementState(galDevice->kernel->hardware, gcvPOWER_OFF);
if (gcmIS_ERROR(status))
{
@@ -789,7 +806,7 @@ static void gpu_early_resume(struct early_suspend *h)
status = gckHARDWARE_SetPowerManagementState(galDevice->kernel->hardware, gcvPOWER_IDLE);
mdelay(50);
msleep(50);
if (gcmIS_ERROR(status))
{
@@ -872,9 +889,9 @@ static int __devinit gpu_suspend(struct platform_device *dev, pm_message_t state
device = platform_get_drvdata(dev);
mdelay(50); //Wait for gpu finish
msleep(50); //Wait for gpu finish
status = gckHARDWARE_SetPowerManagementState(device->kernel->hardware, gcvPOWER_SUSPEND);
status = gckHARDWARE_SetPowerManagementState(device->kernel->hardware, gcvPOWER_OFF);
if (gcmIS_ERROR(status))
{
@@ -898,7 +915,7 @@ static int __devinit gpu_resume(struct platform_device *dev)
status = gckHARDWARE_SetPowerManagementState(device->kernel->hardware, gcvPOWER_IDLE);
mdelay(50);
msleep(50);
if (gcmIS_ERROR(status))
{

17
drivers/staging/rk29/vivante/hal/os/linux/kernel/gc_hal_kernel_os.c
View File

@@ -37,6 +37,7 @@
#include <linux/delay.h>
#include <mach/pmu.h>
#include <mach/cru.h>
#if !USE_NEW_LINUX_SIGNAL
#define USER_SIGNAL_TABLE_LEN_INIT 64
@@ -5936,9 +5937,9 @@ gckOS_SetGPUPower(
//printk("---------- gckOS_SetGPUPower Clock=%d Power=%d \n", Clock, Power);
mdelay(1);
if(lastclock!=Clock)
{
mdelay(10);
if(Clock) {
printk("gpu: clk_enable... ");
clk_enable(clk_gpu);
@@ -5954,24 +5955,30 @@ gckOS_SetGPUPower(
clk_disable(clk_gpu);
printk("done!\n");
}
mdelay(10);
}
lastclock = Clock;
mdelay(1);
if(lastpower!=Power)
{
if(Power) {
printk("gpu: power on... ");
if(lastclock) clk_disable(clk_aclk_ddr_gpu);
mdelay(1);
pmu_set_power_domain(PD_GPU, true);
mdelay(1);
if(lastclock) clk_enable(clk_aclk_ddr_gpu);
printk("done!\n");
} else {
//printk("gpu: power off... ");
//pmu_set_power_domain(PD_GPU, false);
//printk("done!\n");
printk("gpu: power off... ");
pmu_set_power_domain(PD_GPU, false);
printk("done!\n");
}
}
lastpower = Power;
mdelay(1);
#endif
gcmkFOOTER_NO();