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| author | Len Brown <len.brown@intel.com> | 2009-04-21 00:35:47 -0400 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2009-04-21 00:35:47 -0400 |
| commit | 88bea188b85f9cefefbbd56b8a48d0f798409177 (patch) | |
| tree | 8170590416c90c4bec1c00c6e3d472cab3b84e6f | |
| parent | a939b96cccdb65df80a52447ec8e4a6d79c56dbb (diff) | |
| download | kernel_samsung_tuna-88bea188b85f9cefefbbd56b8a48d0f798409177.zip kernel_samsung_tuna-88bea188b85f9cefefbbd56b8a48d0f798409177.tar.gz kernel_samsung_tuna-88bea188b85f9cefefbbd56b8a48d0f798409177.tar.bz2 | |
ACPI: add /sys/firmware/acpi/interrupts/sci_not counter
This counter may prove useful in debugging some
spurious interrupt issues seen in the field.
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-firmware-acpi | 8 | ||||
| -rw-r--r-- | drivers/acpi/osl.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/system.c | 11 | ||||
| -rw-r--r-- | include/linux/acpi.h | 1 |
4 files changed, 19 insertions, 5 deletions
diff --git a/Documentation/ABI/testing/sysfs-firmware-acpi b/Documentation/ABI/testing/sysfs-firmware-acpi index e8ffc70..4f9ba3c 100644 --- a/Documentation/ABI/testing/sysfs-firmware-acpi +++ b/Documentation/ABI/testing/sysfs-firmware-acpi @@ -69,9 +69,13 @@ Description: gpe1F: 0 invalid gpe_all: 1192 sci: 1194 + sci_not: 0 - sci - The total number of times the ACPI SCI - has claimed an interrupt. + sci - The number of times the ACPI SCI + has been called and claimed an interrupt. + + sci_not - The number of times the ACPI SCI + has been called and NOT claimed an interrupt. gpe_all - count of SCI caused by GPEs. diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index d59f08e..d916bea 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -353,8 +353,10 @@ static irqreturn_t acpi_irq(int irq, void *dev_id) if (handled) { acpi_irq_handled++; return IRQ_HANDLED; - } else + } else { + acpi_irq_not_handled++; return IRQ_NONE; + } } acpi_status diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c index da51f05..0944dae 100644 --- a/drivers/acpi/system.c +++ b/drivers/acpi/system.c @@ -38,6 +38,7 @@ ACPI_MODULE_NAME("system"); #define ACPI_SYSTEM_DEVICE_NAME "System" u32 acpi_irq_handled; +u32 acpi_irq_not_handled; /* * Make ACPICA version work as module param @@ -214,8 +215,9 @@ err: #define COUNT_GPE 0 #define COUNT_SCI 1 /* acpi_irq_handled */ -#define COUNT_ERROR 2 /* other */ -#define NUM_COUNTERS_EXTRA 3 +#define COUNT_SCI_NOT 2 /* acpi_irq_not_handled */ +#define COUNT_ERROR 3 /* other */ +#define NUM_COUNTERS_EXTRA 4 struct event_counter { u32 count; @@ -317,6 +319,8 @@ static ssize_t counter_show(struct kobject *kobj, all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI].count = acpi_irq_handled; + all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT].count = + acpi_irq_not_handled; all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE].count = acpi_gpe_count; @@ -363,6 +367,7 @@ static ssize_t counter_set(struct kobject *kobj, all_counters[i].count = 0; acpi_gpe_count = 0; acpi_irq_handled = 0; + acpi_irq_not_handled = 0; goto end; } @@ -456,6 +461,8 @@ void acpi_irq_stats_init(void) sprintf(buffer, "gpe_all"); else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) sprintf(buffer, "sci"); + else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT) + sprintf(buffer, "sci_not"); else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR) sprintf(buffer, "error"); else diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 6586cbd..88be890 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -111,6 +111,7 @@ int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); void acpi_irq_stats_init(void); extern u32 acpi_irq_handled; +extern u32 acpi_irq_not_handled; extern struct acpi_mcfg_allocation *pci_mmcfg_config; extern int pci_mmcfg_config_num; |