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Diffstat (limited to 'src/drivers/generic/debug')
-rw-r--r--src/drivers/generic/debug/debug_dev.c127
1 files changed, 120 insertions, 7 deletions
diff --git a/src/drivers/generic/debug/debug_dev.c b/src/drivers/generic/debug/debug_dev.c
index 600b1fcf60..d5f9e628dd 100644
--- a/src/drivers/generic/debug/debug_dev.c
+++ b/src/drivers/generic/debug/debug_dev.c
@@ -76,26 +76,26 @@ static void print_cpuid()
printk_debug("Reading msr: 0x%08x\n", index);
msr = rdmsr(index);
printk_debug("msr[0x%08x]: 0x%08x%08x\n",
- index, msr.hi, msr.hi);
+ index, msr.hi, msr.lo);
}
}
static void print_smbus_regs(struct device *dev)
{
int j;
- printk_debug("smbus: %s[%d]->", dev_path(dev->bus->dev), dev->bus->link );
- printk_debug("%s", dev_path(dev));
+ printk_debug("smbus: %s[%d]->", dev_path(dev->bus->dev), dev->bus->link);
+ printk_debug("%s", dev_path(dev));
for(j = 0; j < 256; j++) {
int status;
unsigned char byte;
- if ((j & 0xf) == 0) {
- printk_debug("\r\n%02x: ", j);
- }
status = smbus_read_byte(dev, j);
if (status < 0) {
- printk_debug("bad device status= %08x\r\n", status);
+ // printk_debug("bad device status= %08x\r\n", status);
break;
}
+ if ((j & 0xf) == 0) {
+ printk_debug("\r\n%02x: ", j);
+ }
byte = status & 0xff;
printk_debug("%02x ", byte);
}
@@ -125,9 +125,113 @@ static void print_smbus_regs_all(struct device *dev)
}
}
}
+static void print_msr_dualcore(void)
+{
+ msr_t msr;
+ unsigned index;
+ unsigned eax, ebx, ecx, edx;
+ index = 0x80000008;
+ printk_debug("calling cpuid 0x%08x\n", index);
+ asm volatile(
+ "cpuid"
+ : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
+ : "a" (index)
+ );
+ printk_debug("cpuid[%08x]: %08x %08x %08x %08x\n",
+ index, eax, ebx, ecx, edx);
+
+ printk_debug("core number %d\n", ecx & 0xff);
+
+ index = 0xc001001f;
+ printk_debug("Reading msr: 0x%08x\n", index);
+ msr = rdmsr(index);
+ printk_debug("msr[0x%08x]: 0x%08x%08x bit 54 is %d\n",
+ index, msr.hi, msr.lo, (msr.hi>> (54-32)) & 1);
+#if 0
+ msr.hi |= (1<<(54-32));
+ wrmsr(index, msr);
+
+ msr = rdmsr(index);
+ printk_debug("msr[0x%08x]: 0x%08x%08x\n",
+ index, msr.hi, msr.lo);
+#endif
+
+}
+
+static void print_cache_size(void)
+{
+ unsigned index;
+ unsigned int n, eax, ebx, ecx, edx;
+
+ index = 0x80000000;
+ printk_debug("calling cpuid 0x%08x\n", index);
+ asm volatile(
+ "cpuid"
+ : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
+ : "a" (index)
+ );
+ n = eax;
+
+ if (n >= 0x80000005) {
+ index = 0x80000005;
+ printk_debug("calling cpuid 0x%08x\n", index);
+ asm volatile(
+ "cpuid"
+ : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
+ : "a" (index)
+ );
+ printk_debug("CPU: L1 I Cache: %dK (%d bytes/line), D cache %dK (%d bytes/line)\n",
+ edx>>24, edx&0xFF, ecx>>24, ecx&0xFF);
+ }
+
+ if (n >= 0x80000006) {
+ index = 0x80000006;
+ printk_debug("calling cpuid 0x%08x\n", index);
+ asm volatile(
+ "cpuid"
+ : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx)
+ : "a" (index)
+ );
+ printk_debug("CPU: L2 Cache: %dK (%d bytes/line)\n",
+ ecx >> 16, ecx & 0xFF);
+ }
+
+}
+
+struct tsc_struct {
+ unsigned lo;
+ unsigned hi;
+};
+typedef struct tsc_struct tsc_t;
+
+static tsc_t rdtsc(void)
+{
+ tsc_t res;
+ asm volatile(
+ "rdtsc"
+ : "=a" (res.lo), "=d"(res.hi) /* outputs */
+ );
+ return res;
+}
+
+static void print_tsc(void) {
+
+ tsc_t tsc;
+ tsc = rdtsc();
+ printk_debug("tsc: 0x%08x%08x\n",
+ tsc.hi, tsc.lo);
+ udelay(1);
+ tsc = rdtsc();
+ printk_debug("tsc: 0x%08x%08x after udelay(1) \n",
+ tsc.hi, tsc.lo);
+
+}
+
static void debug_init(device_t dev)
{
+#if CONFIG_CHIP_NAME
device_t parent;
+#endif
if (!dev->enabled)
return;
switch(dev->path.u.pnp.device) {
@@ -155,6 +259,15 @@ static void debug_init(device_t dev)
case 4:
print_smbus_regs_all(&dev_root);
break;
+ case 5:
+ print_msr_dualcore();
+ break;
+ case 6:
+ print_cache_size();
+ break;
+ case 7:
+ print_tsc();
+ break;
}
}