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powerpc/64s: reconcile interrupts in C

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There is no need for this to be in asm, use the new intrrupt entry wrapper.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210130130852.2952424-37-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin 2021-01-30 23:08:46 +10:00 committed by Michael Ellerman
parent f821bc97de
commit 75b96950fd
2 changed files with 11 additions and 30 deletions
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15
arch/powerpc/include/asm/interrupt.h
View file

@ -14,11 +14,14 @@ struct interrupt_state {
static inline void interrupt_enter_prepare(struct pt_regs *regs, struct interrupt_state *state)
{
#ifdef CONFIG_PPC_BOOK3E_64
state->ctx_state = exception_enter();
#endif
/*
* Book3E reconciles irq soft mask in asm
*/
#ifdef CONFIG_PPC_BOOK3S_64
if (irq_soft_mask_set_return(IRQS_ALL_DISABLED) == IRQS_ENABLED)
trace_hardirqs_off();
local_paca->irq_happened |= PACA_IRQ_HARD_DIS;
if (user_mode(regs)) {
CT_WARN_ON(ct_state() != CONTEXT_USER);
user_exit_irqoff();
@ -31,6 +34,10 @@ static inline void interrupt_enter_prepare(struct pt_regs *regs, struct interrup
CT_WARN_ON(ct_state() != CONTEXT_KERNEL);
}
#endif
#ifdef CONFIG_PPC_BOOK3E_64
state->ctx_state = exception_enter();
#endif
}
/*

26
arch/powerpc/kernel/exceptions-64s.S
View file

@ -139,7 +139,6 @@ name:
#define IKVM_VIRT .L_IKVM_VIRT_\name\() /* Virt entry tests KVM */
#define ISTACK .L_ISTACK_\name\() /* Set regular kernel stack */
#define __ISTACK(name) .L_ISTACK_ ## name
#define IRECONCILE .L_IRECONCILE_\name\() /* Do RECONCILE_IRQ_STATE */
#define IKUAP .L_IKUAP_\name\() /* Do KUAP lock */
#define INT_DEFINE_BEGIN(n) \
@ -203,9 +202,6 @@ do_define_int n
.ifndef ISTACK
ISTACK=1
.endif
.ifndef IRECONCILE
IRECONCILE=1
.endif
.ifndef IKUAP
IKUAP=1
.endif
@ -653,10 +649,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
.if ISTACK
ACCOUNT_STOLEN_TIME
.endif
.if IRECONCILE
RECONCILE_IRQ_STATE(r10, r11)
.endif
.endm
/*
@ -935,7 +927,6 @@ INT_DEFINE_BEGIN(system_reset)
*/
ISET_RI=0
ISTACK=0
IRECONCILE=0
IKVM_REAL=1
INT_DEFINE_END(system_reset)
@ -1123,7 +1114,6 @@ INT_DEFINE_BEGIN(machine_check_early)
ISTACK=0
IDAR=1
IDSISR=1
IRECONCILE=0
IKUAP=0 /* We don't touch AMR here, we never go to virtual mode */
INT_DEFINE_END(machine_check_early)
@ -1483,7 +1473,6 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
INT_DEFINE_BEGIN(data_access_slb)
IVEC=0x380
IAREA=PACA_EXSLB
IRECONCILE=0
IDAR=1
IKVM_SKIP=1
IKVM_REAL=1
@ -1510,7 +1499,6 @@ MMU_FTR_SECTION_ELSE
li r3,-EFAULT
ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
std r3,RESULT(r1)
RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD
bl do_bad_slb_fault
b interrupt_return
@ -1568,7 +1556,6 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
INT_DEFINE_BEGIN(instruction_access_slb)
IVEC=0x480
IAREA=PACA_EXSLB
IRECONCILE=0
IISIDE=1
IDAR=1
#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
@ -1597,7 +1584,6 @@ MMU_FTR_SECTION_ELSE
li r3,-EFAULT
ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
std r3,RESULT(r1)
RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD
bl do_bad_slb_fault
b interrupt_return
@ -1757,7 +1743,6 @@ EXC_COMMON_BEGIN(program_check_common)
*/
INT_DEFINE_BEGIN(fp_unavailable)
IVEC=0x800
IRECONCILE=0
#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
IKVM_REAL=1
#endif
@ -1772,7 +1757,6 @@ EXC_VIRT_END(fp_unavailable, 0x4800, 0x100)
EXC_COMMON_BEGIN(fp_unavailable_common)
GEN_COMMON fp_unavailable
bne 1f /* if from user, just load it up */
RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD
bl kernel_fp_unavailable_exception
0: trap
@ -1791,7 +1775,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_TM)
b fast_interrupt_return
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
2: /* User process was in a transaction */
RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD
bl fp_unavailable_tm
b interrupt_return
@ -1856,7 +1839,6 @@ INT_DEFINE_BEGIN(hdecrementer)
IVEC=0x980
IHSRR=1
ISTACK=0
IRECONCILE=0
IKVM_REAL=1
IKVM_VIRT=1
INT_DEFINE_END(hdecrementer)
@ -2230,7 +2212,6 @@ INT_DEFINE_BEGIN(hmi_exception_early)
IHSRR=1
IREALMODE_COMMON=1
ISTACK=0
IRECONCILE=0
IKUAP=0 /* We don't touch AMR here, we never go to virtual mode */
IKVM_REAL=1
INT_DEFINE_END(hmi_exception_early)
@ -2404,7 +2385,6 @@ EXC_COMMON_BEGIN(performance_monitor_common)
*/
INT_DEFINE_BEGIN(altivec_unavailable)
IVEC=0xf20
IRECONCILE=0
#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
IKVM_REAL=1
#endif
@ -2434,7 +2414,6 @@ BEGIN_FTR_SECTION
b fast_interrupt_return
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
2: /* User process was in a transaction */
RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD
bl altivec_unavailable_tm
b interrupt_return
@ -2442,7 +2421,6 @@ BEGIN_FTR_SECTION
1:
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
#endif
RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD
bl altivec_unavailable_exception
b interrupt_return
@ -2458,7 +2436,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
*/
INT_DEFINE_BEGIN(vsx_unavailable)
IVEC=0xf40
IRECONCILE=0
#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
IKVM_REAL=1
#endif
@ -2487,7 +2464,6 @@ BEGIN_FTR_SECTION
b load_up_vsx
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
2: /* User process was in a transaction */
RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD
bl vsx_unavailable_tm
b interrupt_return
@ -2495,7 +2471,6 @@ BEGIN_FTR_SECTION
1:
END_FTR_SECTION_IFSET(CPU_FTR_VSX)
#endif
RECONCILE_IRQ_STATE(r10, r11)
addi r3,r1,STACK_FRAME_OVERHEAD
bl vsx_unavailable_exception
b interrupt_return
@ -2830,7 +2805,6 @@ EXC_VIRT_NONE(0x5800, 0x100)
INT_DEFINE_BEGIN(soft_nmi)
IVEC=0x900
ISTACK=0
IRECONCILE=0 /* Soft-NMI may fire under local_irq_disable */
INT_DEFINE_END(soft_nmi)
/*