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MIPS: SGI-IP27: Only reserve interrupts used in Linux

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Reduce number of reserved interrupts by removing bits copied from IRIX
and not used by Linux.

Signed-off-by: Thomas Bogendoerfer <[email protected]>
Signed-off-by: Paul Burton <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: James Hogan <[email protected]>
Cc: [email protected]
Cc: [email protected]
This commit is contained in:
Thomas Bogendoerfer authored and Paul Burton committed 2020-01-09 15:30:04 -08:00
1 parent 9d0aaf98dc
commit 78691e4f17
2 files changed
+1 -20
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arch/mips/include/asm/sn/intr.h
-17
View File
@@ -8,15 +8,6 @@
#ifndef __ASM_SN_INTR_H
#define __ASM_SN_INTR_H
/* Number of interrupt levels associated with each interrupt register. */
#define N_INTPEND_BITS 64
#define INT_PEND0_BASELVL 0
#define INT_PEND1_BASELVL 64
#define N_INTPENDJUNK_BITS 8
#define INTPENDJUNK_CLRBIT 0x80
/*
* Macros to manipulate the interrupt register on the calling hub chip.
*/
@@ -84,14 +75,6 @@ do { \
#define CPU_RESCHED_B_IRQ 8
#define CPU_CALL_A_IRQ 9
#define CPU_CALL_B_IRQ 10
#define MSC_MESG_INTR 11
#define BASE_PCI_IRQ 12
/*
* INT_PEND0 again, bits determined by hardware / hardcoded:
*/
#define SDISK_INTR 63 /* SABLE name */
#define IP_PEND0_6_63 63 /* What is this bit? */
/*
* INT_PEND1 hard-coded bits:
arch/mips/sgi-ip27/ip27-irq.c
+1 -3
View File
@@ -287,11 +287,9 @@ void __init arch_init_irq(void)
* Mark these as reserved right away so they won't be used accidentally
* later.
*/
for (i = 0; i <= BASE_PCI_IRQ; i++)
for (i = 0; i <= CPU_CALL_B_IRQ; i++)
set_bit(i, hub_irq_map);
set_bit(IP_PEND0_6_63, hub_irq_map);
for (i = NI_BRDCAST_ERR_A; i <= MSC_PANIC_INTR; i++)
set_bit(i, hub_irq_map);