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--HG--
extra : convert_revision : cbd0c148a50643191372fdba2f771d7e145f1bff
This commit is contained in:
Nathan Binkert 2004-07-12 22:33:27 -04:00
parent f857bd9dff
commit ef16b46484
1 changed files with 14 additions and 18 deletions
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32
util/ccdrv/devtime.c
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@ -55,7 +55,7 @@ static inline uint32_t cycleCounter(uint32_t dep);
static int __init devtime_start(void) static int __init devtime_start(void)
{ {
uint64_t addr; uint64_t addr;
uint32_t t1, t2; uint32_t t1, t2;
uint32_t trash; uint32_t trash;
int x; int x;
@ -64,8 +64,7 @@ static int __init devtime_start(void)
printk("Devtime Driver Version %s Loaded...\n", DRIVER_VER); printk("Devtime Driver Version %s Loaded...\n", DRIVER_VER);
if ((dataAddr != 0) && (count != 0)) if (dataAddr != 0 && count != 0) {
{
addr = simple_strtoull(dataAddr, NULL, 0); addr = simple_strtoull(dataAddr, NULL, 0);
devSum = 0; devSum = 0;
@ -77,13 +76,11 @@ static int __init devtime_start(void)
* linear addressing, so its not a problem. But it can fail in x86 * linear addressing, so its not a problem. But it can fail in x86
* if physical memory is mapped to this address. * if physical memory is mapped to this address.
*/ */
if (addr) if (addr) {
{
printk("Preparing to read %#llx %d times.\n", addr, count); printk("Preparing to read %#llx %d times.\n", addr, count);
t1 = cycleCounter(trash); t1 = cycleCounter(trash);
for (x=0; x < count; x++) for (x = 0; x < count; x++) {
{
trash = readl(addr); trash = readl(addr);
t2 = cycleCounter(trash); t2 = cycleCounter(trash);
devSum += t2 - t1; devSum += t2 - t1;
@ -95,28 +92,26 @@ static int __init devtime_start(void)
*/ */
iounmap(addr); iounmap(addr);
printk("Read Address %#llx %ld times. Average latency %ld.\n", addr, devCnt, devSum/devCnt); printk("Read Address %#llx %ld times. Average latency %ld.\n",
addr, devCnt, devSum/devCnt);
} }
else else
printk("Unable to remap address. Please try again later.\n"); printk("Unable to remap address. Please try again later.\n");
} else { } else {
dev = dev_get_by_name("eth0"); dev = dev_get_by_name("eth0");
if (dev) if (dev) {
{ printk("Eth0: MemStart: %#lx MemEnd: %#lx I/O Addr: %#lx\n",
printk("Eth0: MemStart: %#lx MemEnd: %#lx I/O Addr: %#lx\n", dev->mem_start, dev->mem_start, dev->mem_end, dev->base_addr);
dev->mem_end, dev->base_addr);
dev_put(dev); dev_put(dev);
} }
dev = 0; dev = 0;
dev = dev_get_by_name("eth1"); dev = dev_get_by_name("eth1");
if (dev) if (dev) {
{ printk("Eth1: MemStart: %#lx MemEnd: %#lx I/O Addr: %#lx\n",
printk("Eth1: MemStart: %#lx MemEnd: %#lx I/O Addr: %#lx\n", dev->mem_start, dev->mem_start, dev->mem_end, dev->base_addr);
dev->mem_end, dev->base_addr);
dev_put(dev); dev_put(dev);
} }
printk("Required information not supplied.\n"); printk("Required information not supplied.\n");
} }
@ -146,7 +141,8 @@ inline uint32_t cycleCounter(uint32_t dep)
#error Architecture NOT SUPPORTE #error Architecture NOT SUPPORTE
#endif #endif
static void __exit devtime_end(void) { static void __exit devtime_end(void)
{
printk("Devtime Driver Version %s Unloaded...\n", DRIVER_VER); printk("Devtime Driver Version %s Unloaded...\n", DRIVER_VER);
} }