gceSTATUS
gckIOMMU_Construct(
IN gckOS Os,
OUT gckIOMMU * Iommu
)
{
gceSTATUS status;
gckIOMMU iommu = gcvNULL;
struct device *dev;
int ret;
gcmkHEADER();
dev = &Os->device->platform->device->dev;
gcmkONERROR(gckOS_Allocate(Os, gcmSIZEOF(gcsIOMMU), (gctPOINTER *)&iommu));
gckOS_ZeroMemory(iommu, gcmSIZEOF(gcsIOMMU));
iommu->domain = iommu_domain_alloc(&platform_bus_type);
if (!iommu->domain)
{
gcmkTRACE_ZONE(gcvLEVEL_INFO, gcvZONE_OS, "iommu_domain_alloc() fail");
gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
}
iommu_set_fault_handler(iommu->domain, _IOMMU_Fault_Handler, dev);
ret = iommu_attach_device(iommu->domain, dev);
if (ret)
{
gcmkTRACE_ZONE(
gcvLEVEL_INFO, gcvZONE_OS, "iommu_attach_device() fail %d", ret);
gcmkONERROR(gcvSTATUS_NOT_SUPPORTED);
}
iommu->device = dev;
_FlatMapping(iommu);
*Iommu = iommu;
gcmkFOOTER_NO();
return gcvSTATUS_OK;
OnError:
gckIOMMU_Destory(Os, iommu);
gcmkFOOTER();
return status;
}
gceSTATUS
gckKERNEL_DumpProcessDB(
IN gckKERNEL Kernel
)
{
gcsDATABASE_PTR database;
gctINT i, pid;
gctUINT8 name[24];
gcmkHEADER_ARG("Kernel=0x%x", Kernel);
/* Acquire the database mutex. */
gcmkVERIFY_OK(
gckOS_AcquireMutex(Kernel->os, Kernel->db->dbMutex, gcvINFINITE));
gcmkPRINT("**************************\n");
gcmkPRINT("*** PROCESS DB DUMP ***\n");
gcmkPRINT("**************************\n");
gcmkPRINT_N(8, "%-8s%s\n", "PID", "NAME");
/* Walk the databases. */
for (i = 0; i < gcmCOUNTOF(Kernel->db->db); ++i)
{
for (database = Kernel->db->db[i];
database != gcvNULL;
database = database->next)
{
pid = database->processID;
gcmkVERIFY_OK(gckOS_ZeroMemory(name, gcmSIZEOF(name)));
gcmkVERIFY_OK(gckOS_GetProcessNameByPid(pid, gcmSIZEOF(name), name));
gcmkPRINT_N(8, "%-8d%s\n", pid, name);
}
}
/* Release the database mutex. */
gcmkVERIFY_OK(gckOS_ReleaseMutex(Kernel->os, Kernel->db->dbMutex));
/* Success. */
gcmkFOOTER_NO();
return gcvSTATUS_OK;
}
static ssize_t gc_proc_write(
struct file *file,
const char *buff,
size_t len,
loff_t *off)
{
char messages[256];
if(len > 256)
len = 256;
if(copy_from_user(messages, buff, len))
return -EFAULT;
printk("\n");
if(strncmp(messages, "dutycycle", 9) == 0)
{
gctINT32 option;
gcuDATABASE_INFO gpuIdle;
static gctUINT64 startTime = 0;
static gctUINT64 endTime = 0;
gcmkVERIFY_OK(gckOS_ZeroMemory((gctPOINTER)&gpuIdle, gcmSIZEOF(gcuDATABASE_INFO)));
sscanf(messages+9, "%d", &option);
switch(option) {
case 0:
gcmkVERIFY_OK(gckOS_GetProfileTick(&startTime));
gcmkVERIFY_OK(gckKERNEL_QueryDutyCycleDB(galDevice->kernels[gcvCORE_MAJOR], gcvTRUE, &gpuIdle));
gpuIdle.time = 0;
endTime = 0;
break;
case 1:
gcmkVERIFY_OK(gckKERNEL_QueryDutyCycleDB(galDevice->kernels[gcvCORE_MAJOR], gcvFALSE, &gpuIdle));
gcmkVERIFY_OK(gckOS_GetProfileTick(&endTime));
break;
default:
printk(KERN_INFO "usage: echo dutycycle [0|1] > /proc/driver/gc\n");
}
if(startTime != 0 && endTime != 0)
{
gctUINT64 delta = endTime - startTime;
gctUINT32 per = 100 - 100 * gckOS_ProfileToMS(gpuIdle.time) / gckOS_ProfileToMS(delta);
printk(KERN_INFO "\n %%GPU START END DELTA IDLE\n");
printk(KERN_INFO "%5u%% %8u %8u %8u %8u\n\n",
per,
gckOS_ProfileToMS(startTime),
gckOS_ProfileToMS(endTime),
gckOS_ProfileToMS(delta),
gckOS_ProfileToMS(gpuIdle.time));
}
}
else if(strncmp(messages, "reg", 3) == 0)
{
gctINT32 option;
gctUINT32 idle, address, clockControl;
sscanf(messages+3, "%d", &option);
switch(option) {
case 1:
/* Read the current FE address. */
gckOS_ReadRegisterEx(galDevice->os,
galDevice->kernels[0]->hardware->core,
0x00664,
&address);
gcmkPRINT("address: 0x%2x\n", address);
break;
case 2:
/* Read idle register. */
gckOS_ReadRegisterEx(galDevice->os,
galDevice->kernels[0]->hardware->core,
0x00004,
&idle);
gcmkPRINT("idle: 0x%2x\n", idle);
break;
case 3:
gckOS_ReadRegisterEx(galDevice->os,
gcvCORE_MAJOR,
0x00000,
&clockControl);
gcmkPRINT("clockControl: 0x%2x\n", clockControl);
break;
default:
printk(KERN_INFO "usage: echo reg [1|2|3] > /proc/driver/gc\n");
}
}
else if(strncmp(messages, "help", 4) == 0)
{
printk("Supported options:\n"
"dutycycle measure dutycycle in a period\n"
"reg enable debugging for register reading\n"
"help show this help page\n"
"\n");
}
else
{
gcmkPRINT("unknown echo\n");
}
printk("\n");
return len;
}
