From: Kevin Cernekee <cernekee@gmail.com>
To: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Subject: [PATCH 8/9] MIPS: Add board_* hooks for ebase and NMI
Date: Sat, 05 Nov 2011 14:21:17 -0700 [thread overview]
Message-ID: <338065dfaf54d0ca25497eabf63a54f0@localhost> (raw)
In-Reply-To: <c2c8833593cb8eeef5c102468e105497@localhost>
Certain BMIPS platforms need to move the exception vectors and/or
intercept NMI events. Add hooks to make this possible.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
---
arch/mips/include/asm/traps.h | 2 ++
arch/mips/kernel/traps.c | 6 ++++++
2 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/mips/include/asm/traps.h b/arch/mips/include/asm/traps.h
index 90ff2f4..2954bd9 100644
--- a/arch/mips/include/asm/traps.h
+++ b/arch/mips/include/asm/traps.h
@@ -22,7 +22,9 @@ extern void (*board_be_init)(void);
extern int (*board_be_handler)(struct pt_regs *regs, int is_fixup);
extern void (*board_nmi_handler_setup)(void);
+extern void (*board_nmi_handler)(struct pt_regs *regs);
extern void (*board_ejtag_handler_setup)(void);
extern void (*board_bind_eic_interrupt)(int irq, int regset);
+extern void (*board_ebase_setup)(void);
#endif /* _ASM_TRAPS_H */
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index cbea618..f98349c 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -90,8 +90,10 @@ extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
void (*board_be_init)(void);
int (*board_be_handler)(struct pt_regs *regs, int is_fixup);
void (*board_nmi_handler_setup)(void);
+void (*board_nmi_handler)(struct pt_regs *regs);
void (*board_ejtag_handler_setup)(void);
void (*board_bind_eic_interrupt)(int irq, int regset);
+void (*board_ebase_setup)(void);
static void show_raw_backtrace(unsigned long reg29)
@@ -1343,6 +1345,8 @@ void ejtag_exception_handler(struct pt_regs *regs)
*/
NORET_TYPE void ATTRIB_NORET nmi_exception_handler(struct pt_regs *regs)
{
+ if (board_nmi_handler)
+ board_nmi_handler(regs);
bust_spinlocks(1);
printk("NMI taken!!!!\n");
die("NMI", regs);
@@ -1682,6 +1686,8 @@ void __init trap_init(void)
ebase += (read_c0_ebase() & 0x3ffff000);
}
+ if (board_ebase_setup)
+ board_ebase_setup();
per_cpu_trap_init();
/*
--
1.7.6.3
next prev parent reply other threads:[~2011-11-05 21:36 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-05 21:21 [PATCH RESEND 1/9] MIPS: Add local_flush_tlb_all_mm to clear all mm contexts on calling cpu Kevin Cernekee
2011-11-05 21:21 ` [PATCH 2/9] MIPS: BMIPS: Fix up Kconfig settings Kevin Cernekee
2011-11-05 21:21 ` [PATCH 3/9] MIPS: BMIPS: Add XKS01 feature flag to Kconfig Kevin Cernekee
2011-11-08 15:49 ` Ralf Baechle
2011-11-05 21:21 ` [PATCH 4/9] MIPS: Clean up whitespace warning in hazards.h Kevin Cernekee
2011-11-05 21:21 ` [PATCH 5/9] MIPS: BMIPS: Add CFLAGS, Makefile entries for BMIPS Kevin Cernekee
2011-11-05 21:21 ` [PATCH 6/9] MIPS: BMIPS: Add set/clear CP0 macros for BMIPS operations Kevin Cernekee
2011-11-05 21:21 ` [PATCH 7/9] MIPS: BMIPS: Introduce bmips.h Kevin Cernekee
2011-11-08 15:03 ` Ralf Baechle
2011-11-05 21:21 ` Kevin Cernekee [this message]
2011-11-08 15:23 ` [PATCH 8/9] MIPS: Add board_* hooks for ebase and NMI Ralf Baechle
2011-11-05 21:21 ` [PATCH 9/9] MIPS: BMIPS: Add SMP support code for BMIPS43xx/BMIPS5000 Kevin Cernekee
2011-11-08 15:56 ` Ralf Baechle
2011-11-08 16:47 ` [PATCH RESEND 1/9] MIPS: Add local_flush_tlb_all_mm to clear all mm contexts on calling cpu Ralf Baechle
2011-11-08 19:40 ` Kevin Cernekee
2011-11-09 5:33 ` Kevin Cernekee
2011-11-09 13:11 ` Ralf Baechle
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