提交 7450f6f0 编写于 作者: B Benjamin Herrenschmidt

powerpc: Use the same interrupt prolog for perfmon as other interrupts

The perfmon interrupt is the sole user of a special variant of the
interrupt prolog which differs from the one used by external and timer
interrupts in that it saves the non-volatile GPRs and doesn't turn the
runlatch on.

The former is unnecessary and the later is arguably incorrect, so
let's clean that up by using the same prolog. While at it we rename
that prolog to use the _ASYNC prefix.
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
上级 4f8cf36f
......@@ -297,21 +297,10 @@ label##_common: \
/*
* Like STD_EXCEPTION_COMMON, but for exceptions that can occur
* in the idle task and therefore need the special idle handling.
* in the idle task and therefore need the special idle handling
* (finish nap and runlatch)
*/
#define STD_EXCEPTION_COMMON_IDLE(trap, label, hdlr) \
.align 7; \
.globl label##_common; \
label##_common: \
EXCEPTION_PROLOG_COMMON(trap, PACA_EXGEN); \
FINISH_NAP; \
DISABLE_INTS; \
bl .save_nvgprs; \
addi r3,r1,STACK_FRAME_OVERHEAD; \
bl hdlr; \
b .ret_from_except
#define STD_EXCEPTION_COMMON_LITE(trap, label, hdlr) \
#define STD_EXCEPTION_COMMON_ASYNC(trap, label, hdlr) \
.align 7; \
.globl label##_common; \
label##_common: \
......
......@@ -458,15 +458,15 @@ machine_check_common:
bl .machine_check_exception
b .ret_from_except
STD_EXCEPTION_COMMON_LITE(0x500, hardware_interrupt, do_IRQ)
STD_EXCEPTION_COMMON_LITE(0x900, decrementer, .timer_interrupt)
STD_EXCEPTION_COMMON_ASYNC(0x500, hardware_interrupt, do_IRQ)
STD_EXCEPTION_COMMON_ASYNC(0x900, decrementer, .timer_interrupt)
STD_EXCEPTION_COMMON(0xa00, trap_0a, .unknown_exception)
STD_EXCEPTION_COMMON(0xb00, trap_0b, .unknown_exception)
STD_EXCEPTION_COMMON(0xd00, single_step, .single_step_exception)
STD_EXCEPTION_COMMON(0xe00, trap_0e, .unknown_exception)
STD_EXCEPTION_COMMON(0xe40, emulation_assist, .program_check_exception)
STD_EXCEPTION_COMMON(0xe60, hmi_exception, .unknown_exception)
STD_EXCEPTION_COMMON_IDLE(0xf00, performance_monitor, .performance_monitor_exception)
STD_EXCEPTION_COMMON_ASYNC(0xf00, performance_monitor, .performance_monitor_exception)
STD_EXCEPTION_COMMON(0x1300, instruction_breakpoint, .instruction_breakpoint_exception)
#ifdef CONFIG_ALTIVEC
STD_EXCEPTION_COMMON(0x1700, altivec_assist, .altivec_assist_exception)
......
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