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gpu : add clock manage

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This commit is contained in:
杜坤明
2010-12-04 16:51:09 +08:00
parent 1f4a0a8c6f
commit e093d80207
3 changed files with 42 additions and 12 deletions
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2
arch/arm/mach-rk29/board-rk29sdk.c
View File

@@ -52,7 +52,7 @@
/* Set memory size of pmem */
#define SDRAM_SIZE SZ_512M
#define PMEM_GPU_SIZE (12 * SZ_1M)
#define PMEM_GPU_SIZE SZ_32M
#define PMEM_UI_SIZE SZ_16M
#define PMEM_VPU_SIZE SZ_32M

2
drivers/staging/rk29/vivante/Makefile
View File

@@ -65,7 +65,7 @@ ENABLE_ARM_L2_CACHE = 0
CONFIG_DOVE_GPU = 0
ENABLE_GPU_CLOCK_BY_DRIVER = 0
ENABLE_GPU_CLOCK_BY_DRIVER = 1
AQROOT ?= drivers/staging/rk29/vivante

50
drivers/staging/rk29/vivante/hal/os/linux/kernel/gc_hal_kernel_driver.c
View File

@@ -441,29 +441,51 @@ static int drv_init(void)
gckGALDEVICE device;
#if ENABLE_GPU_CLOCK_BY_DRIVER && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
struct clk * clk = NULL;
struct clk * clk_gpu = NULL;
struct clk * clk_aclk_gpu = NULL;
struct clk * clk_gpu_ahb = NULL;
#endif
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_DRIVER,
"Entering drv_init\n");
#if ENABLE_GPU_CLOCK_BY_DRIVER && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
clk = clk_get(NULL, "GCCLK");
if (IS_ERR(clk))
// clk_gpu_ahb
clk_gpu_ahb = clk_get(NULL, "gpu_ahb");
if(!IS_ERR(clk_gpu_ahb)) clk_enable(clk_gpu_ahb);
// clk_aclk_gpu
clk_aclk_gpu = clk_get(NULL, "aclk_gpu");
if (IS_ERR(clk_aclk_gpu))
{
int retval = PTR_ERR(clk);
printk("clk get error: %d\n", retval);
int retval = PTR_ERR(clk_aclk_gpu);
printk("clk_aclk_gpu get error: %d\n", retval);
return -ENODEV;
}
if (clk_set_rate(clk_aclk_gpu, 312000000)) //designed on 300M
{
gcmkTRACE_ZONE(gcvLEVEL_ERROR, gcvZONE_DRIVER,
"[galcore] Can't set aclk_gpu clock.");
return -EAGAIN;
}
clk_enable(clk_aclk_gpu);
// clk_gpu
clk_gpu = clk_get(NULL, "gpu");
if (IS_ERR(clk_gpu))
{
int retval = PTR_ERR(clk_gpu);
printk("clk_gpu get error: %d\n", retval);
return -ENODEV;
}
/* APMU_GC_156M, APMU_GC_624M, APMU_GC_PLL2, APMU_GC_PLL2_DIV2 currently */
if (clk_set_rate(clk, 624000000))
if (clk_set_rate(clk_gpu, 312000000)) //designed on 500M
{
gcmkTRACE_ZONE(gcvLEVEL_ERROR, gcvZONE_DRIVER,
"[galcore] Can't set core clock.");
return -EAGAIN;
}
clk_enable(clk);
clk_enable(clk_gpu);
#endif
if (showArgs)
@@ -579,7 +601,9 @@ static void drv_exit(void)
#endif
{
#if ENABLE_GPU_CLOCK_BY_DRIVER && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
struct clk * clk = NULL;
struct clk * clk_gpu = NULL;
struct clk * clk_aclk_gpu = NULL;
struct clk * clk_gpu_ahb = NULL;
#endif
gcmkTRACE_ZONE(gcvLEVEL_VERBOSE, gcvZONE_DRIVER,
"[galcore] Entering drv_exit\n");
@@ -598,8 +622,14 @@ static void drv_exit(void)
gckGALDEVICE_Destroy(galDevice);
#if ENABLE_GPU_CLOCK_BY_DRIVER && LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,28)
clk = clk_get(NULL, "GCCLK");
clk_disable(clk);
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);
clk_gpu_ahb = clk_get(NULL, "gpu_ahb");
if(!IS_ERR(clk_gpu_ahb)) clk_disable(clk_gpu_ahb);
#endif
}