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| author |   Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-08-23 08:24:21 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2021-08-26 21:21:07 +1000 |
| commit | 806c0e6e7e97adc17389c8dc1f52d4736f49299b (patch) | |
| tree | 87b731a92cd76db6d972cd5a3908043c88419dca /arch/powerpc/xmon/xmon.c | |
| parent | powerpc: Remove MSR_PR check in interrupt_exit_{user/kernel}_prepare() (diff) | |
| download | linux-dev-806c0e6e7e97adc17389c8dc1f52d4736f49299b.tar.xz linux-dev-806c0e6e7e97adc17389c8dc1f52d4736f49299b.zip | |
powerpc: Refactor verification of MSR_RI
40x and BOOKE don't have MSR_RI therefore all tests involving
MSR_RI may be problematic on those plateforms.
Create helpers to check or set MSR_RI in regs, and use them
in common code.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c2fb93708196734f4176dda334aaa3055f213b89.1629707037.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/xmon/xmon.c')
| -rw-r--r-- | arch/powerpc/xmon/xmon.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index ead460b80905..dd8241c009e5 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -482,16 +482,6 @@ static inline void get_output_lock(void) {} static inline void release_output_lock(void) {} #endif -static inline int unrecoverable_excp(struct pt_regs *regs) -{ -#if defined(CONFIG_4xx) || defined(CONFIG_PPC_BOOK3E) - /* We have no MSR_RI bit on 4xx or Book3e, so we simply return false */ - return 0; -#else - return ((regs->msr & MSR_RI) == 0); -#endif -} - static void xmon_touch_watchdogs(void) { touch_softlockup_watchdog_sync(); @@ -565,7 +555,7 @@ static int xmon_core(struct pt_regs *regs, volatile int fromipi) bp = NULL; if ((regs->msr & (MSR_IR|MSR_PR|MSR_64BIT)) == (MSR_IR|MSR_64BIT)) bp = at_breakpoint(regs->nip); - if (bp || unrecoverable_excp(regs)) + if (bp || regs_is_unrecoverable(regs)) fromipi = 0; if (!fromipi) { @@ -577,7 +567,7 @@ static int xmon_core(struct pt_regs *regs, volatile int fromipi) cpu, BP_NUM(bp)); xmon_print_symbol(regs->nip, " ", ")\n"); } - if (unrecoverable_excp(regs)) + if (regs_is_unrecoverable(regs)) printf("WARNING: exception is not recoverable, " "can't continue\n"); release_output_lock(); @@ -693,7 +683,7 @@ static int xmon_core(struct pt_regs *regs, volatile int fromipi) printf("Stopped at breakpoint %tx (", BP_NUM(bp)); xmon_print_symbol(regs->nip, " ", ")\n"); } - if (unrecoverable_excp(regs)) + if (regs_is_unrecoverable(regs)) printf("WARNING: exception is not recoverable, " "can't continue\n"); remove_bpts(); |