powerpc: add definition for pt_regs offset within an interrupt frame
This is a common offset that currently uses the overloaded STACK_FRAME_OVERHEAD constant. It's easier to read and more flexible to use a specific regs offset for this. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20221127124942.1665522-8-npiggin@gmail.com
This commit is contained in:
Родитель
37195b820d
Коммит
c03be0a3f3
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@ -124,6 +124,7 @@ struct pt_regs
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#define STACK_FRAME_LR_SAVE 2 /* Location of LR in stack frame */
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#define STACK_INT_FRAME_SIZE (sizeof(struct pt_regs) + \
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STACK_FRAME_OVERHEAD + KERNEL_REDZONE_SIZE)
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#define STACK_INT_FRAME_REGS STACK_FRAME_OVERHEAD
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#define STACK_FRAME_MARKER 12
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#ifdef CONFIG_PPC64_ELF_ABI_V2
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@ -143,6 +144,7 @@ struct pt_regs
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#define STACK_FRAME_OVERHEAD 16 /* size of minimum stack frame */
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#define STACK_FRAME_LR_SAVE 1 /* Location of LR in stack frame */
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#define STACK_INT_FRAME_SIZE (sizeof(struct pt_regs) + STACK_FRAME_OVERHEAD)
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#define STACK_INT_FRAME_REGS STACK_FRAME_OVERHEAD
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#define STACK_FRAME_MARKER 2
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#define STACK_FRAME_MIN_SIZE STACK_FRAME_OVERHEAD
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@ -72,7 +72,7 @@
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#endif
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#define STACK_PT_REGS_OFFSET(sym, val) \
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DEFINE(sym, STACK_FRAME_OVERHEAD + offsetof(struct pt_regs, val))
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DEFINE(sym, STACK_INT_FRAME_REGS + offsetof(struct pt_regs, val))
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int main(void)
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{
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@ -167,9 +167,8 @@ int main(void)
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OFFSET(THREAD_CKVRSTATE, thread_struct, ckvr_state.vr);
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OFFSET(THREAD_CKVRSAVE, thread_struct, ckvrsave);
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OFFSET(THREAD_CKFPSTATE, thread_struct, ckfp_state.fpr);
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/* Local pt_regs on stack for Transactional Memory funcs. */
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DEFINE(TM_FRAME_SIZE, STACK_FRAME_OVERHEAD +
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sizeof(struct pt_regs) + 16);
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/* Local pt_regs on stack in int frame form, plus 16 bytes for TM */
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DEFINE(TM_FRAME_SIZE, STACK_INT_FRAME_SIZE + 16);
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#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
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OFFSET(TI_LOCAL_FLAGS, thread_info, local_flags);
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@ -123,12 +123,12 @@ transfer_to_syscall:
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kuep_lock
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/* Calling convention has r3 = regs, r4 = orig r0 */
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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mr r4,r0
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bl system_call_exception
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ret_from_syscall:
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addi r4,r1,STACK_FRAME_OVERHEAD
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addi r4,r1,STACK_INT_FRAME_REGS
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li r5,0
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bl syscall_exit_prepare
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#ifdef CONFIG_PPC_47x
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@ -293,7 +293,7 @@ _ASM_NOKPROBE_SYMBOL(fast_exception_return)
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.globl interrupt_return
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interrupt_return:
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lwz r4,_MSR(r1)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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andi. r0,r4,MSR_PR
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beq .Lkernel_interrupt_return
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bl interrupt_exit_user_prepare
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@ -455,7 +455,7 @@ exc_##n##_bad_stack: \
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EXCEPTION_COMMON(trapnum) \
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ack(r8); \
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CHECK_NAPPING(); \
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addi r3,r1,STACK_FRAME_OVERHEAD; \
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addi r3,r1,STACK_INT_FRAME_REGS; \
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bl hdlr; \
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b interrupt_return
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@ -504,7 +504,7 @@ __end_interrupts:
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EXCEPTION_COMMON_CRIT(0x100)
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bl special_reg_save
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CHECK_NAPPING();
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl unknown_nmi_exception
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b ret_from_crit_except
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@ -515,7 +515,7 @@ __end_interrupts:
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EXCEPTION_COMMON_MC(0x000)
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bl special_reg_save
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CHECK_NAPPING();
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl machine_check_exception
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b ret_from_mc_except
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@ -570,7 +570,7 @@ __end_interrupts:
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std r14,_ESR(r1)
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ld r14,PACA_EXGEN+EX_R14(r13)
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EXCEPTION_COMMON(0x700)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl program_check_exception
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REST_NVGPRS(r1)
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b interrupt_return
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@ -586,7 +586,7 @@ __end_interrupts:
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beq- 1f
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bl load_up_fpu
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b fast_interrupt_return
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1: addi r3,r1,STACK_FRAME_OVERHEAD
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1: addi r3,r1,STACK_INT_FRAME_REGS
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bl kernel_fp_unavailable_exception
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b interrupt_return
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@ -606,7 +606,7 @@ BEGIN_FTR_SECTION
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1:
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END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
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#endif
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl altivec_unavailable_exception
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b interrupt_return
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@ -616,7 +616,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
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BOOKE_INTERRUPT_ALTIVEC_ASSIST,
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PROLOG_ADDITION_NONE)
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EXCEPTION_COMMON(0x220)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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#ifdef CONFIG_ALTIVEC
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BEGIN_FTR_SECTION
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bl altivec_assist_exception
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@ -643,7 +643,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
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EXCEPTION_COMMON_CRIT(0x9f0)
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bl special_reg_save
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CHECK_NAPPING();
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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#ifdef CONFIG_BOOKE_WDT
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bl WatchdogException
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#else
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@ -664,7 +664,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
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NORMAL_EXCEPTION_PROLOG(0xf20, BOOKE_INTERRUPT_AP_UNAVAIL,
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PROLOG_ADDITION_NONE)
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EXCEPTION_COMMON(0xf20)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl unknown_exception
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b interrupt_return
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@ -731,7 +731,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
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ld r14,PACA_EXCRIT+EX_R14(r13)
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ld r15,PACA_EXCRIT+EX_R15(r13)
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EXCEPTION_COMMON_CRIT(0xd00)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl DebugException
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REST_NVGPRS(r1)
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b interrupt_return
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@ -802,7 +802,7 @@ kernel_dbg_exc:
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ld r14,PACA_EXDBG+EX_R14(r13)
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ld r15,PACA_EXDBG+EX_R15(r13)
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EXCEPTION_COMMON_DBG(0xd08)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl DebugException
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REST_NVGPRS(r1)
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b interrupt_return
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@ -812,7 +812,7 @@ kernel_dbg_exc:
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PROLOG_ADDITION_NONE)
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EXCEPTION_COMMON(0x260)
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CHECK_NAPPING()
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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/*
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* XXX: Returning from performance_monitor_exception taken as a
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* soft-NMI (Linux irqs disabled) may be risky to use interrupt_return
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@ -834,7 +834,7 @@ kernel_dbg_exc:
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EXCEPTION_COMMON_CRIT(0x2a0)
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bl special_reg_save
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CHECK_NAPPING();
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl unknown_nmi_exception
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b ret_from_crit_except
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@ -846,7 +846,7 @@ kernel_dbg_exc:
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GDBELL_EXCEPTION_PROLOG(0x2c0, BOOKE_INTERRUPT_GUEST_DBELL,
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PROLOG_ADDITION_NONE)
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EXCEPTION_COMMON(0x2c0)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl unknown_exception
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b interrupt_return
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@ -857,7 +857,7 @@ kernel_dbg_exc:
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EXCEPTION_COMMON_CRIT(0x2e0)
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bl special_reg_save
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CHECK_NAPPING();
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl unknown_nmi_exception
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b ret_from_crit_except
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@ -866,7 +866,7 @@ kernel_dbg_exc:
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NORMAL_EXCEPTION_PROLOG(0x310, BOOKE_INTERRUPT_HV_SYSCALL,
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PROLOG_ADDITION_NONE)
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EXCEPTION_COMMON(0x310)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl unknown_exception
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b interrupt_return
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@ -875,7 +875,7 @@ kernel_dbg_exc:
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NORMAL_EXCEPTION_PROLOG(0x320, BOOKE_INTERRUPT_HV_PRIV,
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PROLOG_ADDITION_NONE)
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EXCEPTION_COMMON(0x320)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl unknown_exception
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b interrupt_return
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@ -884,7 +884,7 @@ kernel_dbg_exc:
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NORMAL_EXCEPTION_PROLOG(0x340, BOOKE_INTERRUPT_LRAT_ERROR,
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PROLOG_ADDITION_NONE)
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EXCEPTION_COMMON(0x340)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl unknown_exception
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b interrupt_return
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@ -979,7 +979,7 @@ masked_interrupt_book3e_0x2c0:
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* original values stashed away in the PACA
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*/
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storage_fault_common:
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl do_page_fault
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b interrupt_return
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@ -988,7 +988,7 @@ storage_fault_common:
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* continues here.
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*/
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alignment_more:
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl alignment_exception
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REST_NVGPRS(r1)
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b interrupt_return
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@ -1069,7 +1069,7 @@ bad_stack_book3e:
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ZEROIZE_GPR(12)
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std r12,0(r11)
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LOAD_PACA_TOC()
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1: addi r3,r1,STACK_FRAME_OVERHEAD
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1: addi r3,r1,STACK_INT_FRAME_REGS
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bl kernel_bad_stack
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b 1b
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@ -1061,7 +1061,7 @@ EXC_COMMON_BEGIN(system_reset_common)
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subi r1,r1,INT_FRAME_SIZE
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__GEN_COMMON_BODY system_reset
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl system_reset_exception
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/* Clear MSR_RI before setting SRR0 and SRR1. */
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@ -1208,7 +1208,7 @@ EXC_COMMON_BEGIN(machine_check_early_common)
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BEGIN_FTR_SECTION
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bl enable_machine_check
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END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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BEGIN_FTR_SECTION
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bl machine_check_early_boot
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END_FTR_SECTION(0, 1) // nop out after boot
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@ -1298,7 +1298,7 @@ EXC_COMMON_BEGIN(machine_check_common)
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* save area: PACA_EXMC instead of PACA_EXGEN.
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*/
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GEN_COMMON machine_check
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl machine_check_exception_async
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b interrupt_return_srr
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@ -1364,14 +1364,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
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* This is the NMI version of the handler because we are called from
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* the early handler which is a true NMI.
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*/
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl machine_check_exception
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/*
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* We will not reach here. Even if we did, there is no way out.
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* Call unrecoverable_exception and die.
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*/
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl unrecoverable_exception
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b .
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@ -1422,7 +1422,7 @@ EXC_VIRT_END(data_access, 0x4300, 0x80)
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EXC_COMMON_BEGIN(data_access_common)
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GEN_COMMON data_access
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ld r4,_DSISR(r1)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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andis. r0,r4,DSISR_DABRMATCH@h
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bne- 1f
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#ifdef CONFIG_PPC_64S_HASH_MMU
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@ -1479,7 +1479,7 @@ EXC_COMMON_BEGIN(data_access_slb_common)
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#ifdef CONFIG_PPC_64S_HASH_MMU
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BEGIN_MMU_FTR_SECTION
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/* HPT case, do SLB fault */
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl do_slb_fault
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cmpdi r3,0
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bne- 1f
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@ -1493,7 +1493,7 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
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li r3,-EFAULT
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#endif
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std r3,RESULT(r1)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl do_bad_segment_interrupt
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b interrupt_return_srr
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@ -1525,7 +1525,7 @@ EXC_VIRT_BEGIN(instruction_access, 0x4400, 0x80)
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EXC_VIRT_END(instruction_access, 0x4400, 0x80)
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EXC_COMMON_BEGIN(instruction_access_common)
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GEN_COMMON instruction_access
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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#ifdef CONFIG_PPC_64S_HASH_MMU
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BEGIN_MMU_FTR_SECTION
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bl do_hash_fault
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@ -1567,7 +1567,7 @@ EXC_COMMON_BEGIN(instruction_access_slb_common)
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#ifdef CONFIG_PPC_64S_HASH_MMU
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BEGIN_MMU_FTR_SECTION
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/* HPT case, do SLB fault */
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl do_slb_fault
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cmpdi r3,0
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bne- 1f
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@ -1581,7 +1581,7 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
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li r3,-EFAULT
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#endif
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std r3,RESULT(r1)
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl do_bad_segment_interrupt
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b interrupt_return_srr
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@ -1635,7 +1635,7 @@ EXC_VIRT_BEGIN(hardware_interrupt, 0x4500, 0x100)
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EXC_VIRT_END(hardware_interrupt, 0x4500, 0x100)
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EXC_COMMON_BEGIN(hardware_interrupt_common)
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GEN_COMMON hardware_interrupt
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl do_IRQ
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BEGIN_FTR_SECTION
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b interrupt_return_hsrr
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@ -1665,7 +1665,7 @@ EXC_VIRT_BEGIN(alignment, 0x4600, 0x100)
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EXC_VIRT_END(alignment, 0x4600, 0x100)
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EXC_COMMON_BEGIN(alignment_common)
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GEN_COMMON alignment
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl alignment_exception
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REST_NVGPRS(r1) /* instruction emulation may change GPRs */
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b interrupt_return_srr
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@ -1731,7 +1731,7 @@ EXC_COMMON_BEGIN(program_check_common)
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__GEN_COMMON_BODY program_check
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.Ldo_program_check:
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
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bl program_check_exception
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REST_NVGPRS(r1) /* instruction emulation may change GPRs */
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b interrupt_return_srr
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@ -1762,7 +1762,7 @@ EXC_VIRT_END(fp_unavailable, 0x4800, 0x100)
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EXC_COMMON_BEGIN(fp_unavailable_common)
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GEN_COMMON fp_unavailable
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bne 1f /* if from user, just load it up */
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addi r3,r1,STACK_FRAME_OVERHEAD
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addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl kernel_fp_unavailable_exception
|
||||
0: trap
|
||||
EMIT_BUG_ENTRY 0b, __FILE__, __LINE__, 0
|
||||
|
@ -1780,7 +1780,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_TM)
|
|||
b fast_interrupt_return_srr
|
||||
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
|
||||
2: /* User process was in a transaction */
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl fp_unavailable_tm
|
||||
b interrupt_return_srr
|
||||
#endif
|
||||
|
@ -1824,7 +1824,7 @@ EXC_VIRT_BEGIN(decrementer, 0x4900, 0x80)
|
|||
EXC_VIRT_END(decrementer, 0x4900, 0x80)
|
||||
EXC_COMMON_BEGIN(decrementer_common)
|
||||
GEN_COMMON decrementer
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl timer_interrupt
|
||||
b interrupt_return_srr
|
||||
|
||||
|
@ -1909,7 +1909,7 @@ EXC_VIRT_BEGIN(doorbell_super, 0x4a00, 0x100)
|
|||
EXC_VIRT_END(doorbell_super, 0x4a00, 0x100)
|
||||
EXC_COMMON_BEGIN(doorbell_super_common)
|
||||
GEN_COMMON doorbell_super
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
#ifdef CONFIG_PPC_DOORBELL
|
||||
bl doorbell_exception
|
||||
#else
|
||||
|
@ -2076,7 +2076,7 @@ EXC_VIRT_BEGIN(single_step, 0x4d00, 0x100)
|
|||
EXC_VIRT_END(single_step, 0x4d00, 0x100)
|
||||
EXC_COMMON_BEGIN(single_step_common)
|
||||
GEN_COMMON single_step
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl single_step_exception
|
||||
b interrupt_return_srr
|
||||
|
||||
|
@ -2110,7 +2110,7 @@ EXC_VIRT_BEGIN(h_data_storage, 0x4e00, 0x20)
|
|||
EXC_VIRT_END(h_data_storage, 0x4e00, 0x20)
|
||||
EXC_COMMON_BEGIN(h_data_storage_common)
|
||||
GEN_COMMON h_data_storage
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
BEGIN_MMU_FTR_SECTION
|
||||
bl do_bad_page_fault_segv
|
||||
MMU_FTR_SECTION_ELSE
|
||||
|
@ -2139,7 +2139,7 @@ EXC_VIRT_BEGIN(h_instr_storage, 0x4e20, 0x20)
|
|||
EXC_VIRT_END(h_instr_storage, 0x4e20, 0x20)
|
||||
EXC_COMMON_BEGIN(h_instr_storage_common)
|
||||
GEN_COMMON h_instr_storage
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl unknown_exception
|
||||
b interrupt_return_hsrr
|
||||
|
||||
|
@ -2162,7 +2162,7 @@ EXC_VIRT_BEGIN(emulation_assist, 0x4e40, 0x20)
|
|||
EXC_VIRT_END(emulation_assist, 0x4e40, 0x20)
|
||||
EXC_COMMON_BEGIN(emulation_assist_common)
|
||||
GEN_COMMON emulation_assist
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl emulation_assist_interrupt
|
||||
REST_NVGPRS(r1) /* instruction emulation may change GPRs */
|
||||
b interrupt_return_hsrr
|
||||
|
@ -2222,7 +2222,7 @@ EXC_COMMON_BEGIN(hmi_exception_early_common)
|
|||
|
||||
__GEN_COMMON_BODY hmi_exception_early
|
||||
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl hmi_exception_realmode
|
||||
cmpdi cr0,r3,0
|
||||
bne 1f
|
||||
|
@ -2240,7 +2240,7 @@ EXC_COMMON_BEGIN(hmi_exception_early_common)
|
|||
|
||||
EXC_COMMON_BEGIN(hmi_exception_common)
|
||||
GEN_COMMON hmi_exception
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl handle_hmi_exception
|
||||
b interrupt_return_hsrr
|
||||
|
||||
|
@ -2274,7 +2274,7 @@ EXC_VIRT_BEGIN(h_doorbell, 0x4e80, 0x20)
|
|||
EXC_VIRT_END(h_doorbell, 0x4e80, 0x20)
|
||||
EXC_COMMON_BEGIN(h_doorbell_common)
|
||||
GEN_COMMON h_doorbell
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
#ifdef CONFIG_PPC_DOORBELL
|
||||
bl doorbell_exception
|
||||
#else
|
||||
|
@ -2310,7 +2310,7 @@ EXC_VIRT_BEGIN(h_virt_irq, 0x4ea0, 0x20)
|
|||
EXC_VIRT_END(h_virt_irq, 0x4ea0, 0x20)
|
||||
EXC_COMMON_BEGIN(h_virt_irq_common)
|
||||
GEN_COMMON h_virt_irq
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl do_IRQ
|
||||
b interrupt_return_hsrr
|
||||
|
||||
|
@ -2356,7 +2356,7 @@ EXC_VIRT_BEGIN(performance_monitor, 0x4f00, 0x20)
|
|||
EXC_VIRT_END(performance_monitor, 0x4f00, 0x20)
|
||||
EXC_COMMON_BEGIN(performance_monitor_common)
|
||||
GEN_COMMON performance_monitor
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
lbz r4,PACAIRQSOFTMASK(r13)
|
||||
cmpdi r4,IRQS_ENABLED
|
||||
bne 1f
|
||||
|
@ -2410,14 +2410,14 @@ BEGIN_FTR_SECTION
|
|||
b fast_interrupt_return_srr
|
||||
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
|
||||
2: /* User process was in a transaction */
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl altivec_unavailable_tm
|
||||
b interrupt_return_srr
|
||||
#endif
|
||||
1:
|
||||
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
|
||||
#endif
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl altivec_unavailable_exception
|
||||
b interrupt_return_srr
|
||||
|
||||
|
@ -2458,14 +2458,14 @@ BEGIN_FTR_SECTION
|
|||
b load_up_vsx
|
||||
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
|
||||
2: /* User process was in a transaction */
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl vsx_unavailable_tm
|
||||
b interrupt_return_srr
|
||||
#endif
|
||||
1:
|
||||
END_FTR_SECTION_IFSET(CPU_FTR_VSX)
|
||||
#endif
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl vsx_unavailable_exception
|
||||
b interrupt_return_srr
|
||||
|
||||
|
@ -2492,7 +2492,7 @@ EXC_VIRT_BEGIN(facility_unavailable, 0x4f60, 0x20)
|
|||
EXC_VIRT_END(facility_unavailable, 0x4f60, 0x20)
|
||||
EXC_COMMON_BEGIN(facility_unavailable_common)
|
||||
GEN_COMMON facility_unavailable
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl facility_unavailable_exception
|
||||
REST_NVGPRS(r1) /* instruction emulation may change GPRs */
|
||||
b interrupt_return_srr
|
||||
|
@ -2520,7 +2520,7 @@ EXC_VIRT_BEGIN(h_facility_unavailable, 0x4f80, 0x20)
|
|||
EXC_VIRT_END(h_facility_unavailable, 0x4f80, 0x20)
|
||||
EXC_COMMON_BEGIN(h_facility_unavailable_common)
|
||||
GEN_COMMON h_facility_unavailable
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl facility_unavailable_exception
|
||||
REST_NVGPRS(r1) /* XXX Shouldn't be necessary in practice */
|
||||
b interrupt_return_hsrr
|
||||
|
@ -2550,7 +2550,7 @@ EXC_REAL_END(cbe_system_error, 0x1200, 0x100)
|
|||
EXC_VIRT_NONE(0x5200, 0x100)
|
||||
EXC_COMMON_BEGIN(cbe_system_error_common)
|
||||
GEN_COMMON cbe_system_error
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl cbe_system_error_exception
|
||||
b interrupt_return_hsrr
|
||||
|
||||
|
@ -2581,7 +2581,7 @@ EXC_VIRT_BEGIN(instruction_breakpoint, 0x5300, 0x100)
|
|||
EXC_VIRT_END(instruction_breakpoint, 0x5300, 0x100)
|
||||
EXC_COMMON_BEGIN(instruction_breakpoint_common)
|
||||
GEN_COMMON instruction_breakpoint
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl instruction_breakpoint_exception
|
||||
b interrupt_return_srr
|
||||
|
||||
|
@ -2703,7 +2703,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
|
|||
|
||||
EXC_COMMON_BEGIN(denorm_exception_common)
|
||||
GEN_COMMON denorm_exception
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl unknown_exception
|
||||
b interrupt_return_hsrr
|
||||
|
||||
|
@ -2720,7 +2720,7 @@ EXC_REAL_END(cbe_maintenance, 0x1600, 0x100)
|
|||
EXC_VIRT_NONE(0x5600, 0x100)
|
||||
EXC_COMMON_BEGIN(cbe_maintenance_common)
|
||||
GEN_COMMON cbe_maintenance
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl cbe_maintenance_exception
|
||||
b interrupt_return_hsrr
|
||||
|
||||
|
@ -2745,7 +2745,7 @@ EXC_VIRT_BEGIN(altivec_assist, 0x5700, 0x100)
|
|||
EXC_VIRT_END(altivec_assist, 0x5700, 0x100)
|
||||
EXC_COMMON_BEGIN(altivec_assist_common)
|
||||
GEN_COMMON altivec_assist
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
#ifdef CONFIG_ALTIVEC
|
||||
bl altivec_assist_exception
|
||||
REST_NVGPRS(r1) /* instruction emulation may change GPRs */
|
||||
|
@ -2767,7 +2767,7 @@ EXC_REAL_END(cbe_thermal, 0x1800, 0x100)
|
|||
EXC_VIRT_NONE(0x5800, 0x100)
|
||||
EXC_COMMON_BEGIN(cbe_thermal_common)
|
||||
GEN_COMMON cbe_thermal
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl cbe_thermal_exception
|
||||
b interrupt_return_hsrr
|
||||
|
||||
|
@ -2800,7 +2800,7 @@ EXC_COMMON_BEGIN(soft_nmi_common)
|
|||
subi r1,r1,INT_FRAME_SIZE
|
||||
__GEN_COMMON_BODY soft_nmi
|
||||
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl soft_nmi_interrupt
|
||||
|
||||
/* Clear MSR_RI before setting SRR0 and SRR1. */
|
||||
|
|
|
@ -127,7 +127,7 @@ _ASM_NOKPROBE_SYMBOL(\name\()_virt)
|
|||
mfspr r10,SPRN_XER
|
||||
addi r2, r2, -THREAD
|
||||
stw r10,_XER(r1)
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
.endm
|
||||
|
||||
.macro prepare_transfer_to_handler
|
||||
|
|
|
@ -972,10 +972,10 @@ _GLOBAL(__giveup_spe)
|
|||
li r4,THREAD_ACC
|
||||
evstddx evr6, r4, r3 /* save off accumulator */
|
||||
beq 1f
|
||||
lwz r4,_MSR-STACK_FRAME_OVERHEAD(r5)
|
||||
lwz r4,_MSR-STACK_INT_FRAME_REGS(r5)
|
||||
lis r3,MSR_SPE@h
|
||||
andc r4,r4,r3 /* disable SPE for previous task */
|
||||
stw r4,_MSR-STACK_FRAME_OVERHEAD(r5)
|
||||
stw r4,_MSR-STACK_INT_FRAME_REGS(r5)
|
||||
1:
|
||||
blr
|
||||
#endif /* CONFIG_SPE */
|
||||
|
|
|
@ -99,7 +99,7 @@ END_BTB_FLUSH_SECTION
|
|||
mfspr r10,SPRN_XER
|
||||
addi r2, r2, -THREAD
|
||||
stw r10,_XER(r1)
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
.endm
|
||||
|
||||
.macro prepare_transfer_to_handler
|
||||
|
|
|
@ -78,7 +78,7 @@ _ASM_NOKPROBE_SYMBOL(system_call_vectored_\name)
|
|||
std r12,_CCR(r1)
|
||||
std r3,ORIG_GPR3(r1)
|
||||
/* Calling convention has r3 = regs, r4 = orig r0 */
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
mr r4,r0
|
||||
LOAD_REG_IMMEDIATE(r11, STACK_FRAME_REGS_MARKER)
|
||||
std r11,-16(r3) /* "regshere" marker */
|
||||
|
@ -99,7 +99,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
|
|||
bl system_call_exception
|
||||
|
||||
.Lsyscall_vectored_\name\()_exit:
|
||||
addi r4,r1,STACK_FRAME_OVERHEAD
|
||||
addi r4,r1,STACK_INT_FRAME_REGS
|
||||
li r5,1 /* scv */
|
||||
bl syscall_exit_prepare
|
||||
std r1,PACA_EXIT_SAVE_R1(r13) /* save r1 for restart */
|
||||
|
@ -176,7 +176,7 @@ _ASM_NOKPROBE_SYMBOL(syscall_vectored_\name\()_restart)
|
|||
ld r1,PACA_EXIT_SAVE_R1(r13)
|
||||
LOAD_PACA_TOC()
|
||||
ld r3,RESULT(r1)
|
||||
addi r4,r1,STACK_FRAME_OVERHEAD
|
||||
addi r4,r1,STACK_INT_FRAME_REGS
|
||||
li r11,IRQS_ALL_DISABLED
|
||||
stb r11,PACAIRQSOFTMASK(r13)
|
||||
bl syscall_exit_restart
|
||||
|
@ -251,7 +251,7 @@ END_BTB_FLUSH_SECTION
|
|||
std r12,_CCR(r1)
|
||||
std r3,ORIG_GPR3(r1)
|
||||
/* Calling convention has r3 = regs, r4 = orig r0 */
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
mr r4,r0
|
||||
LOAD_REG_IMMEDIATE(r11, STACK_FRAME_REGS_MARKER)
|
||||
std r11,-16(r3) /* "regshere" marker */
|
||||
|
@ -278,7 +278,7 @@ END_BTB_FLUSH_SECTION
|
|||
bl system_call_exception
|
||||
|
||||
.Lsyscall_exit:
|
||||
addi r4,r1,STACK_FRAME_OVERHEAD
|
||||
addi r4,r1,STACK_INT_FRAME_REGS
|
||||
li r5,0 /* !scv */
|
||||
bl syscall_exit_prepare
|
||||
std r1,PACA_EXIT_SAVE_R1(r13) /* save r1 for restart */
|
||||
|
@ -357,7 +357,7 @@ _ASM_NOKPROBE_SYMBOL(syscall_restart)
|
|||
ld r1,PACA_EXIT_SAVE_R1(r13)
|
||||
LOAD_PACA_TOC()
|
||||
ld r3,RESULT(r1)
|
||||
addi r4,r1,STACK_FRAME_OVERHEAD
|
||||
addi r4,r1,STACK_INT_FRAME_REGS
|
||||
li r11,IRQS_ALL_DISABLED
|
||||
stb r11,PACAIRQSOFTMASK(r13)
|
||||
bl syscall_exit_restart
|
||||
|
@ -388,7 +388,7 @@ _ASM_NOKPROBE_SYMBOL(fast_interrupt_return_srr)
|
|||
andi. r0,r5,MSR_RI
|
||||
li r3,0 /* 0 return value, no EMULATE_STACK_STORE */
|
||||
bne+ .Lfast_kernel_interrupt_return_srr
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl unrecoverable_exception
|
||||
b . /* should not get here */
|
||||
#else
|
||||
|
@ -406,7 +406,7 @@ _ASM_NOKPROBE_SYMBOL(interrupt_return_\srr\())
|
|||
beq interrupt_return_\srr\()_kernel
|
||||
interrupt_return_\srr\()_user: /* make backtraces match the _kernel variant */
|
||||
_ASM_NOKPROBE_SYMBOL(interrupt_return_\srr\()_user)
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl interrupt_exit_user_prepare
|
||||
cmpdi r3,0
|
||||
bne- .Lrestore_nvgprs_\srr
|
||||
|
@ -503,7 +503,7 @@ _ASM_NOKPROBE_SYMBOL(interrupt_return_\srr\()_user_restart)
|
|||
GET_PACA(r13)
|
||||
ld r1,PACA_EXIT_SAVE_R1(r13)
|
||||
LOAD_PACA_TOC()
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
li r11,IRQS_ALL_DISABLED
|
||||
stb r11,PACAIRQSOFTMASK(r13)
|
||||
bl interrupt_exit_user_restart
|
||||
|
@ -518,7 +518,7 @@ RESTART_TABLE(.Linterrupt_return_\srr\()_user_rst_start, .Linterrupt_return_\srr
|
|||
.balign IFETCH_ALIGN_BYTES
|
||||
interrupt_return_\srr\()_kernel:
|
||||
_ASM_NOKPROBE_SYMBOL(interrupt_return_\srr\()_kernel)
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
bl interrupt_exit_kernel_prepare
|
||||
|
||||
std r1,PACA_EXIT_SAVE_R1(r13) /* save r1 for restart */
|
||||
|
@ -684,7 +684,7 @@ _ASM_NOKPROBE_SYMBOL(interrupt_return_\srr\()_kernel_restart)
|
|||
GET_PACA(r13)
|
||||
ld r1,PACA_EXIT_SAVE_R1(r13)
|
||||
LOAD_PACA_TOC()
|
||||
addi r3,r1,STACK_FRAME_OVERHEAD
|
||||
addi r3,r1,STACK_INT_FRAME_REGS
|
||||
li r11,IRQS_ALL_DISABLED
|
||||
stb r11,PACAIRQSOFTMASK(r13)
|
||||
bl interrupt_exit_kernel_restart
|
||||
|
|
|
@ -191,7 +191,7 @@ static int kgdb_break_match(struct pt_regs *regs)
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void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p)
|
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{
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||||
struct pt_regs *regs = (struct pt_regs *)(p->thread.ksp +
|
||||
STACK_FRAME_OVERHEAD);
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||||
STACK_INT_FRAME_REGS);
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||||
unsigned long *ptr = gdb_regs;
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int reg;
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||||
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||||
|
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|
@ -85,7 +85,7 @@ optprobe_template_op_address:
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TEMPLATE_FOR_IMM_LOAD_INSNS
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||||
/* 2. pt_regs pointer in r4 */
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addi r4,r1,STACK_FRAME_OVERHEAD
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addi r4,r1,STACK_INT_FRAME_REGS
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||||
.global optprobe_template_call_handler
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optprobe_template_call_handler:
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|
@ -96,7 +96,7 @@ optprobe_template_call_handler:
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|||
* Parameters for instruction emulation:
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||||
* 1. Pass SP in register r3.
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||||
*/
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||||
addi r3,r1,STACK_FRAME_OVERHEAD
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||||
addi r3,r1,STACK_INT_FRAME_REGS
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||||
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||||
.global optprobe_template_insn
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optprobe_template_insn:
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||||
|
|
|
@ -22,7 +22,7 @@
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|||
*/
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||||
_GLOBAL(ppc_save_regs)
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/* This allows stack frame accessor macros and offsets to be used */
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||||
subi r3,r3,STACK_FRAME_OVERHEAD
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subi r3,r3,STACK_INT_FRAME_REGS
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PPC_STL r0,GPR0(r3)
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#ifdef CONFIG_PPC32
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stmw r2,GPR2(r3)
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||||
|
|
|
@ -2260,12 +2260,12 @@ void __no_sanitize_address show_stack(struct task_struct *tsk,
|
|||
|
||||
/*
|
||||
* See if this is an exception frame.
|
||||
* We look for the "regshere" marker in the current frame.
|
||||
* We look for the "regs" marker in the current frame.
|
||||
*/
|
||||
if (validate_sp(sp, tsk, STACK_FRAME_WITH_PT_REGS)
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||||
&& stack[STACK_FRAME_MARKER] == STACK_FRAME_REGS_MARKER) {
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||||
struct pt_regs *regs = (struct pt_regs *)
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||||
(sp + STACK_FRAME_OVERHEAD);
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||||
(sp + STACK_INT_FRAME_REGS);
|
||||
|
||||
lr = regs->link;
|
||||
printk("%s--- interrupt: %lx at %pS\n",
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||||
|
|
|
@ -117,7 +117,7 @@ _GLOBAL(tm_reclaim)
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|||
std r2, STK_GOT(r1)
|
||||
stdu r1, -TM_FRAME_SIZE(r1)
|
||||
|
||||
/* We've a struct pt_regs at [r1+STACK_FRAME_OVERHEAD]. */
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||||
/* We've a struct pt_regs at [r1+STACK_INT_FRAME_REGS]. */
|
||||
|
||||
std r3, STK_PARAM(R3)(r1)
|
||||
SAVE_NVGPRS(r1)
|
||||
|
@ -222,7 +222,7 @@ _GLOBAL(tm_reclaim)
|
|||
* Make r7 look like an exception frame so that we can use the neat
|
||||
* GPRx(n) macros. r7 is NOT a pt_regs ptr!
|
||||
*/
|
||||
subi r7, r7, STACK_FRAME_OVERHEAD
|
||||
subi r7, r7, STACK_INT_FRAME_REGS
|
||||
|
||||
/* Sync the userland GPRs 2-12, 14-31 to thread->regs: */
|
||||
SAVE_GPR(0, r7) /* user r0 */
|
||||
|
@ -359,7 +359,7 @@ _GLOBAL(__tm_recheckpoint)
|
|||
stdu r1, -TM_FRAME_SIZE(r1)
|
||||
|
||||
/*
|
||||
* We've a struct pt_regs at [r1+STACK_FRAME_OVERHEAD].
|
||||
* We've a struct pt_regs at [r1+STACK_INT_FRAME_REGS].
|
||||
* This is used for backing up the NVGPRs:
|
||||
*/
|
||||
SAVE_NVGPRS(r1)
|
||||
|
@ -379,7 +379,7 @@ _GLOBAL(__tm_recheckpoint)
|
|||
* Make r7 look like an exception frame so that we can use the neat
|
||||
* GPRx(n) macros. r7 is now NOT a pt_regs ptr!
|
||||
*/
|
||||
subi r7, r7, STACK_FRAME_OVERHEAD
|
||||
subi r7, r7, STACK_INT_FRAME_REGS
|
||||
|
||||
/* We need to setup MSR for FP/VMX/VSX register save instructions. */
|
||||
mfmsr r6
|
||||
|
|
|
@ -110,7 +110,7 @@
|
|||
.endif
|
||||
|
||||
/* Load &pt_regs in r6 for call below */
|
||||
addi r6, r1, STACK_FRAME_OVERHEAD
|
||||
addi r6, r1, STACK_INT_FRAME_REGS
|
||||
.endm
|
||||
|
||||
.macro ftrace_regs_exit allregs
|
||||
|
|
|
@ -16,7 +16,7 @@ _GLOBAL(exec_instr)
|
|||
|
||||
/*
|
||||
* Stack frame layout (INT_FRAME_SIZE bytes)
|
||||
* In-memory pt_regs (SP + STACK_FRAME_OVERHEAD)
|
||||
* In-memory pt_regs (SP + STACK_INT_FRAME_REGS)
|
||||
* Scratch space (SP + 8)
|
||||
* Back chain (SP + 0)
|
||||
*/
|
||||
|
|
|
@ -67,7 +67,7 @@ perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *re
|
|||
* This looks like an interrupt frame for an
|
||||
* interrupt that occurred in the kernel
|
||||
*/
|
||||
regs = (struct pt_regs *)(sp + STACK_FRAME_OVERHEAD);
|
||||
regs = (struct pt_regs *)(sp + STACK_INT_FRAME_REGS);
|
||||
next_ip = regs->nip;
|
||||
lr = regs->link;
|
||||
level = 0;
|
||||
|
|
|
@ -1782,14 +1782,13 @@ static void xmon_show_stack(unsigned long sp, unsigned long lr,
|
|||
xmon_print_symbol(ip, " ", "\n");
|
||||
}
|
||||
|
||||
/* Look for "regshere" marker to see if this is
|
||||
/* Look for "regs" marker to see if this is
|
||||
an exception frame. */
|
||||
if (mread(sp + MARKER_OFFSET, &marker, sizeof(unsigned long))
|
||||
&& marker == STACK_FRAME_REGS_MARKER) {
|
||||
if (mread(sp + STACK_FRAME_OVERHEAD, ®s, sizeof(regs))
|
||||
!= sizeof(regs)) {
|
||||
if (mread(sp + STACK_INT_FRAME_REGS, ®s, sizeof(regs)) != sizeof(regs)) {
|
||||
printf("Couldn't read registers at %lx\n",
|
||||
sp + STACK_FRAME_OVERHEAD);
|
||||
sp + STACK_INT_FRAME_REGS);
|
||||
break;
|
||||
}
|
||||
printf("--- Exception: %lx %s at ", regs.trap,
|
||||
|
|
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