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| author | Nicholas Piggin <npiggin@gmail.com> | 2016-09-21 17:44:05 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-10-04 13:07:15 +1100 |
| commit | 0f0c6ca1945b2d20dc493e3dd36dc3e6621ccd5f (patch) | |
| tree | 737cbf3d8e79f6592d0a27a39076e3ef86304711 /arch/powerpc/kernel/exceptions-64s.S | |
| parent | 3965f8ab77e378339b71eb13b0b90516e6ef91ae (diff) | |
| download | blackbird-op-linux-0f0c6ca1945b2d20dc493e3dd36dc3e6621ccd5f.tar.gz blackbird-op-linux-0f0c6ca1945b2d20dc493e3dd36dc3e6621ccd5f.zip | |
powerpc/64s: Move __replay_interrupt function below handlers
This is not an exception handler as such, it's called from
local_irq_enable(), not exception entry.
Also clean up some now redundant comments at the end of the
consolidation series.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/exceptions-64s.S')
| -rw-r--r-- | arch/powerpc/kernel/exceptions-64s.S | 74 |
1 files changed, 36 insertions, 38 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 307e117b95d3..9b26b7b6f74a 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -1317,43 +1317,6 @@ USE_FIXED_SECTION(virt_trampolines) MASKED_INTERRUPT() MASKED_INTERRUPT(H) -/* - * Called from arch_local_irq_enable when an interrupt needs - * to be resent. r3 contains 0x500, 0x900, 0xa00 or 0xe80 to indicate - * which kind of interrupt. MSR:EE is already off. We generate a - * stackframe like if a real interrupt had happened. - * - * Note: While MSR:EE is off, we need to make sure that _MSR - * in the generated frame has EE set to 1 or the exception - * handler will not properly re-enable them. - */ -USE_TEXT_SECTION() -_GLOBAL(__replay_interrupt) - /* We are going to jump to the exception common code which - * will retrieve various register values from the PACA which - * we don't give a damn about, so we don't bother storing them. - */ - mfmsr r12 - mflr r11 - mfcr r9 - ori r12,r12,MSR_EE - cmpwi r3,0x900 - beq decrementer_common - cmpwi r3,0x500 - beq hardware_interrupt_common -BEGIN_FTR_SECTION - cmpwi r3,0xe80 - beq h_doorbell_common - cmpwi r3,0xea0 - beq h_virt_irq_common - cmpwi r3,0xe60 - beq hmi_exception_common -FTR_SECTION_ELSE - cmpwi r3,0xa00 - beq doorbell_super_common -ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE) - blr - #ifdef CONFIG_KVM_BOOK3S_64_HANDLER TRAMP_REAL_BEGIN(kvmppc_skip_interrupt) /* @@ -1409,7 +1372,6 @@ TRAMP_REAL_BEGIN(kvmppc_skip_Hinterrupt) EXC_COMMON_BEGIN(ppc64_runlatch_on_trampoline) b __ppc64_runlatch_on - /* Equivalents to the above handlers for relocation-on interrupt vectors */ USE_FIXED_SECTION(virt_trampolines) /* * The __end_interrupts marker must be past the out-of-line (OOL) @@ -1584,3 +1546,39 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR) 1: addi r3,r1,STACK_FRAME_OVERHEAD bl kernel_bad_stack b 1b + +/* + * Called from arch_local_irq_enable when an interrupt needs + * to be resent. r3 contains 0x500, 0x900, 0xa00 or 0xe80 to indicate + * which kind of interrupt. MSR:EE is already off. We generate a + * stackframe like if a real interrupt had happened. + * + * Note: While MSR:EE is off, we need to make sure that _MSR + * in the generated frame has EE set to 1 or the exception + * handler will not properly re-enable them. + */ +_GLOBAL(__replay_interrupt) + /* We are going to jump to the exception common code which + * will retrieve various register values from the PACA which + * we don't give a damn about, so we don't bother storing them. + */ + mfmsr r12 + mflr r11 + mfcr r9 + ori r12,r12,MSR_EE + cmpwi r3,0x900 + beq decrementer_common + cmpwi r3,0x500 + beq hardware_interrupt_common +BEGIN_FTR_SECTION + cmpwi r3,0xe80 + beq h_doorbell_common + cmpwi r3,0xea0 + beq h_virt_irq_common + cmpwi r3,0xe60 + beq hmi_exception_common +FTR_SECTION_ELSE + cmpwi r3,0xa00 + beq doorbell_super_common +ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE) + blr |
