提交 286f5718 编写于 作者: R Robert Richter 提交者: Ingo Molnar

x86: apic_*.c: add description to AMD's extended LVT functions

Signed-off-by: NRobert Richter <robert.richter@amd.com>
Cc: oprofile-list <oprofile-list@lists.sourceforge.net>
Cc: Barry Kasindorf <barry.kasindorf@amd.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
上级 021f8b75
......@@ -646,6 +646,9 @@ int setup_profiling_timer(unsigned int multiplier)
*
* Vector mappings are hard coded. On K8 only offset 0 (APIC500) and
* MCE interrupts are supported. Thus MCE offset must be set to 0.
*
* If mask=1, the LVT entry does not generate interrupts while mask=0
* enables the vector. See also the BKDGs.
*/
#define APIC_EILVT_LVTOFF_MCE 0
......
......@@ -205,6 +205,9 @@ static void __setup_APIC_LVTT(unsigned int clocks, int oneshot, int irqen)
*
* Vector mappings are hard coded. On K8 only offset 0 (APIC500) and
* MCE interrupts are supported. Thus MCE offset must be set to 0.
*
* If mask=1, the LVT entry does not generate interrupts while mask=0
* enables the vector. See also the BKDGs.
*/
#define APIC_EILVT_LVTOFF_MCE 0
......
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