static void ppro_setup_ctrs(struct op_msrs const * const msrs)
{
uint low, high;
int i;
/* clear all counters */
for (i = 0 ; i < NUM_CONTROLS; ++i) {
CTRL_READ(low, high, msrs, i);
CTRL_CLEAR(low);
CTRL_WRITE(low, high, msrs, i);
}
/* avoid a false detection of ctr overflows in NMI handler */
for (i = 0; i < NUM_COUNTERS; ++i)
CTR_WRITE(1, msrs, i);
/* enable active counters */
for (i = 0; i < NUM_COUNTERS; ++i) {
if (sysctl.ctr[i].enabled) {
CTR_WRITE(sysctl.ctr[i].count, msrs, i);
CTRL_READ(low, high, msrs, i);
CTRL_CLEAR(low);
CTRL_SET_ENABLE(low);
CTRL_SET_USR(low, sysctl.ctr[i].user);
CTRL_SET_KERN(low, sysctl.ctr[i].kernel);
CTRL_SET_UM(low, sysctl.ctr[i].unit_mask);
CTRL_SET_EVENT(low, sysctl.ctr[i].event);
CTRL_WRITE(low, high, msrs, i);
}
}
}
static void ppro_setup_ctrs(struct op_msrs const * const msrs)
{
uint64_t msr_content;
int i;
if (cpu_has_arch_perfmon) {
union cpuid10_eax eax;
eax.full = cpuid_eax(0xa);
/*
* For Core2 (family 6, model 15), don't reset the
* counter width:
*/
if (!(eax.split.version_id == 0 &&
current_cpu_data.x86 == 6 &&
current_cpu_data.x86_model == 15)) {
if (counter_width < eax.split.bit_width)
counter_width = eax.split.bit_width;
}
}
/* clear all counters */
for (i = 0 ; i < num_counters; ++i) {
CTRL_READ(msr_content, msrs, i);
CTRL_CLEAR(msr_content);
CTRL_WRITE(msr_content, msrs, i);
}
/* avoid a false detection of ctr overflows in NMI handler */
for (i = 0; i < num_counters; ++i)
wrmsrl(msrs->counters[i].addr, ~0x0ULL);
/* enable active counters */
for (i = 0; i < num_counters; ++i) {
if (counter_config[i].enabled) {
reset_value[i] = counter_config[i].count;
wrmsrl(msrs->counters[i].addr, -reset_value[i]);
CTRL_READ(msr_content, msrs, i);
CTRL_CLEAR(msr_content);
CTRL_SET_ENABLE(msr_content);
CTRL_SET_USR(msr_content, counter_config[i].user);
CTRL_SET_KERN(msr_content, counter_config[i].kernel);
CTRL_SET_UM(msr_content, counter_config[i].unit_mask);
CTRL_SET_EVENT(msr_content, counter_config[i].event);
CTRL_WRITE(msr_content, msrs, i);
} else {
reset_value[i] = 0;
}
}
}
static void ppro_setup_ctrs(struct op_msrs const * const msrs)
{
unsigned int low, high;
int i;
/* clear all counters */
for (i = 0 ; i < NUM_CONTROLS; ++i) {
if (unlikely(!CTRL_IS_RESERVED(msrs,i)))
continue;
CTRL_READ(low, high, msrs, i);
CTRL_CLEAR(low);
CTRL_WRITE(low, high, msrs, i);
}
/* avoid a false detection of ctr overflows in NMI handler */
for (i = 0; i < NUM_COUNTERS; ++i) {
if (unlikely(!CTR_IS_RESERVED(msrs,i)))
continue;
CTR_WRITE(1, msrs, i);
}
/* enable active counters */
for (i = 0; i < NUM_COUNTERS; ++i) {
if ((counter_config[i].enabled) && (CTR_IS_RESERVED(msrs,i))) {
reset_value[i] = counter_config[i].count;
CTR_WRITE(counter_config[i].count, msrs, i);
CTRL_READ(low, high, msrs, i);
CTRL_CLEAR(low);
CTRL_SET_ENABLE(low);
CTRL_SET_USR(low, counter_config[i].user);
CTRL_SET_KERN(low, counter_config[i].kernel);
CTRL_SET_UM(low, counter_config[i].unit_mask);
CTRL_SET_EVENT(low, counter_config[i].event);
CTRL_WRITE(low, high, msrs, i);
} else {
reset_value[i] = 0;
}
}
}
static void ppro_setup_ctrs(struct op_msrs const * const msrs)
{
unsigned int low, high;
int i;
if (!reset_value) {
reset_value = kmalloc(sizeof(reset_value[0]) * num_counters,
GFP_ATOMIC);
if (!reset_value)
return;
}
if (cpu_has_arch_perfmon) {
union cpuid10_eax eax;
eax.full = cpuid_eax(0xa);
/*
* For Core2 (family 6, model 15), don't reset the
* counter width:
*/
if (!(eax.split.version_id == 0 &&
current_cpu_data.x86 == 6 &&
current_cpu_data.x86_model == 15)) {
if (counter_width < eax.split.bit_width)
counter_width = eax.split.bit_width;
}
}
/* clear all counters */
for (i = 0 ; i < num_counters; ++i) {
if (unlikely(!CTRL_IS_RESERVED(msrs, i)))
continue;
CTRL_READ(low, high, msrs, i);
CTRL_CLEAR(low);
CTRL_WRITE(low, high, msrs, i);
}
/* avoid a false detection of ctr overflows in NMI handler */
for (i = 0; i < num_counters; ++i) {
if (unlikely(!CTR_IS_RESERVED(msrs, i)))
continue;
wrmsrl(msrs->counters[i].addr, -1LL);
}
/* enable active counters */
for (i = 0; i < num_counters; ++i) {
if ((counter_config[i].enabled) && (CTR_IS_RESERVED(msrs, i))) {
reset_value[i] = counter_config[i].count;
wrmsrl(msrs->counters[i].addr, -reset_value[i]);
CTRL_READ(low, high, msrs, i);
CTRL_CLEAR(low);
CTRL_SET_ENABLE(low);
CTRL_SET_USR(low, counter_config[i].user);
CTRL_SET_KERN(low, counter_config[i].kernel);
CTRL_SET_UM(low, counter_config[i].unit_mask);
CTRL_SET_EVENT(low, counter_config[i].event);
CTRL_WRITE(low, high, msrs, i);
} else {
reset_value[i] = 0;
}
}
}
