[PATCH v7 11/42] powerpc: bad_page_fault get registers from regs
flat view
STALE2072d
LANDED
From: Nicholas Piggin <npiggin@gmail.com>
Date: 2021-01-30 13:46:52
Subsystem:
linux for powerpc (32-bit and 64-bit), linux for powerpc embedded ppc8xx and ppc83xx, the rest · Maintainers:
Madhavan Srinivasan, Christophe Leroy, Linus Torvalds
Revision v7 of 7 in this series; landed in mainline as 8458c628a53b on 2021-02-08.
Revisions (7)
Similar to the previous patch this makes interrupt handler function types more regular so they can be wrapped with the next patch. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/include/asm/bug.h | 4 ++-- arch/powerpc/kernel/entry_32.S | 3 +-- arch/powerpc/kernel/exceptions-64e.S | 3 +-- arch/powerpc/kernel/traps.c | 2 +- arch/powerpc/mm/book3s64/hash_utils.c | 4 ++-- arch/powerpc/mm/book3s64/slb.c | 2 +- arch/powerpc/mm/fault.c | 6 +++--- arch/powerpc/platforms/8xx/machine_check.c | 2 +- 8 files changed, 12 insertions(+), 14 deletions(-)
diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h
index f7827e993196..4220789b9a97 100644
--- a/arch/powerpc/include/asm/bug.h
+++ b/arch/powerpc/include/asm/bug.h@@ -112,8 +112,8 @@ struct pt_regs; long do_page_fault(struct pt_regs *); -extern void bad_page_fault(struct pt_regs *, unsigned long, int); -void __bad_page_fault(struct pt_regs *regs, unsigned long address, int sig); +void bad_page_fault(struct pt_regs *, int); +void __bad_page_fault(struct pt_regs *regs, int sig); extern void _exception(int, struct pt_regs *, int, unsigned long); extern void _exception_pkey(struct pt_regs *, unsigned long, int); extern void die(const char *, struct pt_regs *, long);
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index d6ea3f2d6cc0..b102b40c4988 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S@@ -672,9 +672,8 @@ handle_page_fault: lwz r0,_TRAP(r1) clrrwi r0,r0,1 stw r0,_TRAP(r1) - mr r5,r3 + mr r4,r3 /* err arg for bad_page_fault */ addi r3,r1,STACK_FRAME_OVERHEAD - lwz r4,_DAR(r1) bl __bad_page_fault b ret_from_except_full
diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index 1a7291daadfd..003999c7836c 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S@@ -1016,9 +1016,8 @@ storage_fault_common: bne- 1f b ret_from_except_lite 1: bl save_nvgprs - mr r5,r3 + mr r4,r3 addi r3,r1,STACK_FRAME_OVERHEAD - ld r4,_DAR(r1) bl __bad_page_fault b ret_from_except
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index dfb0d3325f4b..f7370145be19 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c@@ -1612,7 +1612,7 @@ void alignment_exception(struct pt_regs *regs) if (user_mode(regs)) _exception(sig, regs, code, regs->dar); else - bad_page_fault(regs, regs->dar, sig); + bad_page_fault(regs, sig); bail: exception_exit(prev_state);
diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c
index 9a499af3eebf..1a270cc37d97 100644
--- a/arch/powerpc/mm/book3s64/hash_utils.c
+++ b/arch/powerpc/mm/book3s64/hash_utils.c@@ -1539,7 +1539,7 @@ long do_hash_fault(struct pt_regs *regs) * the access, or panic if there isn't a handler. */ if (unlikely(in_nmi())) { - bad_page_fault(regs, ea, SIGSEGV); + bad_page_fault(regs, SIGSEGV); return 0; }
@@ -1578,7 +1578,7 @@ long do_hash_fault(struct pt_regs *regs) else _exception(SIGBUS, regs, BUS_ADRERR, ea); } else { - bad_page_fault(regs, ea, SIGBUS); + bad_page_fault(regs, SIGBUS); } err = 0;
diff --git a/arch/powerpc/mm/book3s64/slb.c b/arch/powerpc/mm/book3s64/slb.c
index 985902ce0272..c581548b533f 100644
--- a/arch/powerpc/mm/book3s64/slb.c
+++ b/arch/powerpc/mm/book3s64/slb.c@@ -874,7 +874,7 @@ void do_bad_slb_fault(struct pt_regs *regs) if (user_mode(regs)) _exception(SIGSEGV, regs, SEGV_BNDERR, regs->dar); else - bad_page_fault(regs, regs->dar, SIGSEGV); + bad_page_fault(regs, SIGSEGV); } else if (err == -EINVAL) { unrecoverable_exception(regs); } else {
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 273ff845eccf..5dd3248b47c7 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c@@ -566,7 +566,7 @@ NOKPROBE_SYMBOL(do_page_fault); * It is called from the DSI and ISI handlers in head.S and from some * of the procedures in traps.c. */ -void __bad_page_fault(struct pt_regs *regs, unsigned long address, int sig) +void __bad_page_fault(struct pt_regs *regs, int sig) { int is_write = page_fault_is_write(regs->dsisr);
@@ -604,7 +604,7 @@ void __bad_page_fault(struct pt_regs *regs, unsigned long address, int sig) die("Kernel access of bad area", regs, sig); } -void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig) +void bad_page_fault(struct pt_regs *regs, int sig) { const struct exception_table_entry *entry;
@@ -613,5 +613,5 @@ void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig) if (entry) instruction_pointer_set(regs, extable_fixup(entry)); else - __bad_page_fault(regs, address, sig); + __bad_page_fault(regs, sig); }
diff --git a/arch/powerpc/platforms/8xx/machine_check.c b/arch/powerpc/platforms/8xx/machine_check.c
index 88dedf38eccd..656365975895 100644
--- a/arch/powerpc/platforms/8xx/machine_check.c
+++ b/arch/powerpc/platforms/8xx/machine_check.c@@ -26,7 +26,7 @@ int machine_check_8xx(struct pt_regs *regs) * to deal with that than having a wart in the mcheck handler. * -- BenH */ - bad_page_fault(regs, regs->dar, SIGBUS); + bad_page_fault(regs, SIGBUS); return 1; #else return 0;
--
2.23.0