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path: root/target/linux/ramips/patches-3.8/001-mips-add-cp0-compare-irq-function.patch
blob: d7678615bc35434c8a30eae9d8fbdace82669817 (plain)
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--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -55,6 +55,7 @@
 #include <asm/types.h>
 #include <asm/stacktrace.h>
 #include <asm/uasm.h>
+#include <asm/time.h>
 
 extern void check_wait(void);
 extern asmlinkage void r4k_wait(void);
@@ -1617,6 +1618,8 @@ void __cpuinit per_cpu_trap_init(bool is
 	if (cpu_has_mips_r2) {
 		cp0_compare_irq_shift = CAUSEB_TI - CAUSEB_IP;
 		cp0_compare_irq = (read_c0_intctl() >> INTCTLB_IPTI) & 7;
+		if (get_c0_compare_irq)
+			cp0_compare_irq = get_c0_compare_irq();
 		cp0_perfcount_irq = (read_c0_intctl() >> INTCTLB_IPPCI) & 7;
 		if (cp0_perfcount_irq == cp0_compare_irq)
 			cp0_perfcount_irq = -1;
--- a/arch/mips/include/asm/time.h
+++ b/arch/mips/include/asm/time.h
@@ -51,6 +51,7 @@ extern int (*perf_irq)(void);
  * Initialize the calling CPU's compare interrupt as clockevent device
  */
 extern unsigned int __weak get_c0_compare_int(void);
+extern unsigned int __weak get_c0_compare_irq(void);
 extern int r4k_clockevent_init(void);
 
 static inline int mips_clockevent_init(void)