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Diffstat (limited to 'ioapic.h')
-rw-r--r--ioapic.h68
1 files changed, 33 insertions, 35 deletions
diff --git a/ioapic.h b/ioapic.h
index 9df55b5..f266f16 100644
--- a/ioapic.h
+++ b/ioapic.h
@@ -1,7 +1,7 @@
-#define IO_APIC_BASE 0xFEC00000 /* default physical locations of an IO APIC */
-#define IOAPIC_WINDOW 0x10 /* window register offset */
+#define IO_APIC_BASE 0xFEC00000 // default physical locations of an IO APIC
+#define IOAPIC_WINDOW 0x10 // window register offset
-/* constants relating to APIC ID registers */
+// Constants relating to APIC ID registers
#define APIC_ID_MASK 0xff000000
#define APIC_ID_SHIFT 24
#define APIC_ID_CLUSTER 0xf0
@@ -10,12 +10,12 @@
#define APIC_MAX_INTRACLUSTER_ID 3
#define APIC_ID_CLUSTER_SHIFT 4
-/* fields in VER */
+// Fields in VER
#define APIC_VER_VERSION 0x000000ff
#define APIC_VER_MAXLVT 0x00ff0000
#define MAXLVTSHIFT 16
-/* Indexes into IO APIC */
+// Indexes into IO APIC
#define IOAPIC_ID 0x00
#define IOAPIC_VER 0x01
#define IOAPIC_ARB 0x02
@@ -45,46 +45,44 @@
#define IOAPIC_REDTBL22 (IOAPIC_REDTBL+0x2c)
#define IOAPIC_REDTBL23 (IOAPIC_REDTBL+0x2e)
-/*
- * fields in the IO APIC's redirection table entries
- */
-#define IOART_DEST APIC_ID_MASK /* broadcast addr: all APICs */
+// Fields in the IO APIC's redirection table entries
+#define IOART_DEST APIC_ID_MASK // broadcast addr: all APICs
-#define IOART_RESV 0x00fe0000 /* reserved */
+#define IOART_RESV 0x00fe0000 // reserved
-#define IOART_INTMASK 0x00010000 /* R/W: INTerrupt mask */
-#define IOART_INTMCLR 0x00000000 /* clear, allow INTs */
-#define IOART_INTMSET 0x00010000 /* set, inhibit INTs */
+#define IOART_INTMASK 0x00010000 // R/W: INTerrupt mask
+#define IOART_INTMCLR 0x00000000 // clear, allow INTs
+#define IOART_INTMSET 0x00010000 // set, inhibit INTs
-#define IOART_TRGRMOD 0x00008000 /* R/W: trigger mode */
-#define IOART_TRGREDG 0x00000000 /* edge */
-#define IOART_TRGRLVL 0x00008000 /* level */
+#define IOART_TRGRMOD 0x00008000 // R/W: trigger mode
+#define IOART_TRGREDG 0x00000000 // edge
+#define IOART_TRGRLVL 0x00008000 // level
-#define IOART_REM_IRR 0x00004000 /* RO: remote IRR */
+#define IOART_REM_IRR 0x00004000 // RO: remote IRR
-#define IOART_INTPOL 0x00002000 /* R/W: INT input pin polarity */
-#define IOART_INTAHI 0x00000000 /* active high */
-#define IOART_INTALO 0x00002000 /* active low */
+#define IOART_INTPOL 0x00002000 // R/W: INT input pin polarity
+#define IOART_INTAHI 0x00000000 // active high
+#define IOART_INTALO 0x00002000 // active low
-#define IOART_DELIVS 0x00001000 /* RO: delivery status */
+#define IOART_DELIVS 0x00001000 // RO: delivery status
-#define IOART_DESTMOD 0x00000800 /* R/W: destination mode */
-#define IOART_DESTPHY 0x00000000 /* physical */
-#define IOART_DESTLOG 0x00000800 /* logical */
+#define IOART_DESTMOD 0x00000800 // R/W: destination mode
+#define IOART_DESTPHY 0x00000000 // physical
+#define IOART_DESTLOG 0x00000800 // logical
-#define IOART_DELMOD 0x00000700 /* R/W: delivery mode */
-#define IOART_DELFIXED 0x00000000 /* fixed */
-#define IOART_DELLOPRI 0x00000100 /* lowest priority */
-#define IOART_DELSMI 0x00000200 /* System Management INT */
-#define IOART_DELRSV1 0x00000300 /* reserved */
-#define IOART_DELNMI 0x00000400 /* NMI signal */
-#define IOART_DELINIT 0x00000500 /* INIT signal */
-#define IOART_DELRSV2 0x00000600 /* reserved */
-#define IOART_DELEXINT 0x00000700 /* External INTerrupt */
+#define IOART_DELMOD 0x00000700 // R/W: delivery mode
+#define IOART_DELFIXED 0x00000000 // fixed
+#define IOART_DELLOPRI 0x00000100 // lowest priority
+#define IOART_DELSMI 0x00000200 // System Management INT
+#define IOART_DELRSV1 0x00000300 // reserved
+#define IOART_DELNMI 0x00000400 // NMI signal
+#define IOART_DELINIT 0x00000500 // INIT signal
+#define IOART_DELRSV2 0x00000600 // reserved
+#define IOART_DELEXINT 0x00000700 // External INTerrupt
-#define IOART_INTVEC 0x000000ff /* R/W: INTerrupt vector field */
+#define IOART_INTVEC 0x000000ff // R/W: INTerrupt vector field
-/* fields in VER */
+// Fields in VER
#define IOART_VER_VERSION 0x000000ff
#define IOART_VER_MAXREDIR 0x00ff0000
#define MAXREDIRSHIFT 16