[PATCH v3 09/42] powerpc/64s: Consolidate Instruction Storage 0x400 interrupt
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STALE3661d
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2016-10-05 00:23:14
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
From: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> --- arch/powerpc/kernel/exceptions-64s.S | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index c3e1f610cf29..13eb8c7bc051 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S@@ -592,6 +592,24 @@ TRAMP_KVM_SKIP(PACA_EXSLB, 0x380) EXC_REAL(instruction_access, 0x400, 0x480) +EXC_VIRT(instruction_access, 0x4400, 0x4480, 0x400) +TRAMP_KVM(PACA_EXGEN, 0x400) + +EXC_COMMON_BEGIN(instruction_access_common) + EXCEPTION_PROLOG_COMMON(0x400, PACA_EXGEN) + RECONCILE_IRQ_STATE(r10, r11) + ld r12,_MSR(r1) + ld r3,_NIP(r1) + andis. r4,r12,0x5820 + li r5,0x400 + std r3,_DAR(r1) + std r4,_DSISR(r1) +BEGIN_MMU_FTR_SECTION + b do_hash_page /* Try to handle as hpte fault */ +MMU_FTR_SECTION_ELSE + b handle_page_fault +ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX) + EXC_REAL_BEGIN(instruction_access_slb, 0x480, 0x500) SET_SCRATCH0(r13)
@@ -772,7 +790,6 @@ EXC_REAL_NONE(0x1800, 0x1900) /*** Out of line interrupts support ***/ /* moved from 0x200 */ -TRAMP_KVM(PACA_EXGEN, 0x400) TRAMP_KVM(PACA_EXSLB, 0x480) TRAMP_KVM(PACA_EXGEN, 0x900) TRAMP_KVM_HV(PACA_EXGEN, 0x980)
@@ -1040,8 +1057,6 @@ EXC_COMMON(altivec_assist_common, 0x1700, unknown_exception) * come here. */ -EXC_VIRT(instruction_access, 0x4400, 0x4480, 0x400) - EXC_VIRT_BEGIN(instruction_access_slb, 0x4480, 0x4500) SET_SCRATCH0(r13) EXCEPTION_PROLOG_0(PACA_EXSLB)
@@ -1152,20 +1167,6 @@ EXC_COMMON_BEGIN(h_data_storage_common) bl unknown_exception b ret_from_except -EXC_COMMON_BEGIN(instruction_access_common) - EXCEPTION_PROLOG_COMMON(0x400, PACA_EXGEN) - RECONCILE_IRQ_STATE(r10, r11) - ld r12,_MSR(r1) - ld r3,_NIP(r1) - andis. r4,r12,0x5820 - li r5,0x400 - std r3,_DAR(r1) - std r4,_DSISR(r1) -BEGIN_MMU_FTR_SECTION - b do_hash_page /* Try to handle as hpte fault */ -MMU_FTR_SECTION_ELSE - b handle_page_fault -ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX) EXC_COMMON(h_instr_storage_common, 0xe20, unknown_exception)
--
2.7.4