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authorJacob Shin <jacob.shin@amd.com>2005-11-05 11:25:53 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-14 22:55:13 -0500
commit89b831ef8bf5cfbb357dbc0a2e07700d7f20eec5 (patch)
tree25118081599eab69bd20d1a1b34ba0f8f679f24f /arch/x86_64/kernel/i8259.c
parent979edfadbae2286eec5b46143c00e81bca96498e (diff)
[PATCH] x86_64: Support for AMD specific MCE Threshold.
MC4_MISC - DRAM Errors Threshold Register realized under AMD K8 Rev F. This register is used to count correctable and uncorrectable ECC errors that occur during DRAM read operations. The user may interface through sysfs files in order to change the threshold configuration. bank%d/error_count - reads current error count, write to clear. bank%d/interrupt_enable - set/clear interrupt enable. bank%d/threshold_limit - read/write the threshold limit. APIC vector 0xF9 in hw_irq.h. 5 software defined bank ids in mce.h. new apic.c function to setup threshold apic lvt. defaults to interrupt off, count enabled, and threshold limit max. sysfs interface created on /sys/devices/system/threshold. AK: added some ifdefs to make it compile on UP Signed-off-by: Jacob Shin <jacob.shin@amd.com> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/kernel/i8259.c')
-rw-r--r--arch/x86_64/kernel/i8259.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/i8259.c b/arch/x86_64/kernel/i8259.c
index c6c9791d77c1..5de30035e54b 100644
--- a/arch/x86_64/kernel/i8259.c
+++ b/arch/x86_64/kernel/i8259.c
@@ -492,6 +492,7 @@ void invalidate_interrupt5(void);
492void invalidate_interrupt6(void); 492void invalidate_interrupt6(void);
493void invalidate_interrupt7(void); 493void invalidate_interrupt7(void);
494void thermal_interrupt(void); 494void thermal_interrupt(void);
495void threshold_interrupt(void);
495void i8254_timer_resume(void); 496void i8254_timer_resume(void);
496 497
497static void setup_timer_hardware(void) 498static void setup_timer_hardware(void)
@@ -580,6 +581,7 @@ void __init init_IRQ(void)
580 set_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt); 581 set_intr_gate(CALL_FUNCTION_VECTOR, call_function_interrupt);
581#endif 582#endif
582 set_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt); 583 set_intr_gate(THERMAL_APIC_VECTOR, thermal_interrupt);
584 set_intr_gate(THRESHOLD_APIC_VECTOR, threshold_interrupt);
583 585
584#ifdef CONFIG_X86_LOCAL_APIC 586#ifdef CONFIG_X86_LOCAL_APIC
585 /* self generated IPI for local APIC timer */ 587 /* self generated IPI for local APIC timer */