diff options
| -rw-r--r-- | arch/x86/kernel/acpi/cstate.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/processor_idle.c | 11 | ||||
| -rw-r--r-- | drivers/cpuidle/cpuidle.c | 3 | ||||
| -rw-r--r-- | drivers/cpuidle/sysfs.c | 14 | ||||
| -rw-r--r-- | include/acpi/processor.h | 9 | ||||
| -rw-r--r-- | include/linux/cpuidle.h | 2 |
6 files changed, 34 insertions, 7 deletions
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c index 10b67170b133..8ca3557a6d59 100644 --- a/arch/x86/kernel/acpi/cstate.c +++ b/arch/x86/kernel/acpi/cstate.c @@ -126,6 +126,8 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu, printk(KERN_DEBUG "Monitor-Mwait will be used to enter C-%d " "state\n", cx->type); } + snprintf(cx->desc, ACPI_CX_DESC_LEN, "ACPI FFH INTEL MWAIT 0x%x", + cx->address); out: set_cpus_allowed(current, saved_mask); diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 32003fdc91e8..baa389b908e2 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -945,11 +945,16 @@ static int acpi_processor_get_power_info_cst(struct acpi_processor *pr) * Otherwise, ignore this info and continue. */ cx.entry_method = ACPI_CSTATE_HALT; + snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI HLT"); } else { continue; } + } else { + snprintf(cx.desc, ACPI_CX_DESC_LEN, "ACPI IOPORT 0x%x", + cx.address); } + obj = &(element->package.elements[2]); if (obj->type != ACPI_TYPE_INTEGER) continue; @@ -1643,6 +1648,11 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr) return -EINVAL; } + for (i = 0; i < CPUIDLE_STATE_MAX; i++) { + dev->states[i].name[0] = '\0'; + dev->states[i].desc[0] = '\0'; + } + for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) { cx = &pr->power.states[i]; state = &dev->states[count]; @@ -1659,6 +1669,7 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr) cpuidle_set_statedata(state, cx); snprintf(state->name, CPUIDLE_NAME_LEN, "C%d", i); + strncpy(state->desc, cx->desc, CPUIDLE_DESC_LEN); state->exit_latency = cx->latency; state->target_residency = cx->latency * latency_factor; state->power_usage = cx->power; diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c index 60f71e6345e3..d73663a52324 100644 --- a/drivers/cpuidle/cpuidle.c +++ b/drivers/cpuidle/cpuidle.c @@ -219,7 +219,8 @@ static void poll_idle_init(struct cpuidle_device *dev) cpuidle_set_statedata(state, NULL); - snprintf(state->name, CPUIDLE_NAME_LEN, "C0 (poll idle)"); + snprintf(state->name, CPUIDLE_NAME_LEN, "C0"); + snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE"); state->exit_latency = 0; state->target_residency = 0; state->power_usage = -1; diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c index 088ea74edd34..69102ca05685 100644 --- a/drivers/cpuidle/sysfs.c +++ b/drivers/cpuidle/sysfs.c @@ -218,16 +218,23 @@ static ssize_t show_state_##_name(struct cpuidle_state *state, char *buf) \ return sprintf(buf, "%u\n", state->_name);\ } -static ssize_t show_state_name(struct cpuidle_state *state, char *buf) -{ - return sprintf(buf, "%s\n", state->name); +#define define_show_state_str_function(_name) \ +static ssize_t show_state_##_name(struct cpuidle_state *state, char *buf) \ +{ \ + if (state->_name[0] == '\0')\ + return sprintf(buf, "<null>\n");\ + return sprintf(buf, "%s\n", state->_name);\ } define_show_state_function(exit_latency) define_show_state_function(power_usage) define_show_state_function(usage) define_show_state_function(time) +define_show_state_str_function(name) +define_show_state_str_function(desc) + define_one_state_ro(name, show_state_name); +define_one_state_ro(desc, show_state_desc); define_one_state_ro(latency, show_state_exit_latency); define_one_state_ro(power, show_state_power_usage); define_one_state_ro(usage, show_state_usage); @@ -235,6 +242,7 @@ define_one_state_ro(time, show_state_time); static struct attribute *cpuidle_state_default_attrs[] = { &attr_name.attr, + &attr_desc.attr, &attr_latency.attr, &attr_power.attr, &attr_usage.attr, diff --git a/include/acpi/processor.h b/include/acpi/processor.h index cdc8004cfd12..06480bcabfdc 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -32,9 +32,11 @@ #define DOMAIN_COORD_TYPE_SW_ANY 0xfd #define DOMAIN_COORD_TYPE_HW_ALL 0xfe -#define ACPI_CSTATE_SYSTEMIO (0) -#define ACPI_CSTATE_FFH (1) -#define ACPI_CSTATE_HALT (2) +#define ACPI_CSTATE_SYSTEMIO 0 +#define ACPI_CSTATE_FFH 1 +#define ACPI_CSTATE_HALT 2 + +#define ACPI_CX_DESC_LEN 32 /* Power Management */ @@ -74,6 +76,7 @@ struct acpi_processor_cx { u64 time; struct acpi_processor_cx_policy promotion; struct acpi_processor_cx_policy demotion; + char desc[ACPI_CX_DESC_LEN]; }; struct acpi_processor_power { diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 385d45b616db..6b72a4584086 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -19,6 +19,7 @@ #define CPUIDLE_STATE_MAX 8 #define CPUIDLE_NAME_LEN 16 +#define CPUIDLE_DESC_LEN 32 struct cpuidle_device; @@ -29,6 +30,7 @@ struct cpuidle_device; struct cpuidle_state { char name[CPUIDLE_NAME_LEN]; + char desc[CPUIDLE_DESC_LEN]; void *driver_data; unsigned int flags; |