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Commit c6a4ebb9 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

MIPS: Provide a symbol for the legacy performance counter interrupt. 

Based on https://patchwork.linux-mips.org/patch/3576

 - but this really
deserves its own patchset and the symbol should also be used :)

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
parent b876c1a0

arch/mips/include/asm/irq.h

+1 −0
Original line number Diff line number Diff line
@@ -136,6 +136,7 @@ extern void free_irqno(unsigned int irq); 
 * IE7.  Since R2 their number has to be read from the c0_intctl register.

 */

#define CP0_LEGACY_COMPARE_IRQ 7

#define CP0_LEGACY_PERFCNT_IRQ 7



extern int cp0_compare_irq;

extern int cp0_compare_irq_shift;

arch/mips/kernel/traps.c

+1 −1
Original line number Diff line number Diff line
@@ -1597,7 +1597,7 @@ void __cpuinit per_cpu_trap_init(bool is_boot_cpu) 
			cp0_perfcount_irq = -1;

	} else {

		cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ;

		cp0_compare_irq_shift = cp0_compare_irq;

		cp0_compare_irq_shift = CP0_LEGACY_PERFCNT_IRQ;

		cp0_perfcount_irq = -1;

	}