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| author | Denis Orlov <denorl2009@gmail.com> | 2023-07-25 08:05:08 +0300 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2023-07-27 07:08:29 +0200 |
| commit | 2c9e141c078fea0c200936e90b8fff29c5a384e7 (patch) | |
| tree | 0ec7f8d143bc243eaef9455003400869086bb188 /arch | |
| parent | 7141578b3d85e6c74331d7bc714033e0a987b2e9 (diff) | |
| download | barebox-2c9e141c078fea0c200936e90b8fff29c5a384e7.tar.gz barebox-2c9e141c078fea0c200936e90b8fff29c5a384e7.tar.xz | |
MIPS: print BadVAddr CP0 register on exception
This register contains the failing address on Address Error and some
TLB-related exceptions, and is useful for debugging purposes.
Signed-off-by: Denis Orlov <denorl2009@gmail.com>
Link: https://lore.barebox.org/20230725050618.3451-8-denorl2009@gmail.com
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/include/asm/stackframe.h | 4 | ||||
| -rw-r--r-- | arch/mips/lib/traps.c | 3 |
2 files changed, 6 insertions, 1 deletions
diff --git a/arch/mips/include/asm/stackframe.h b/arch/mips/include/asm/stackframe.h index 2295d7f02f..64ec37478a 100644 --- a/arch/mips/include/asm/stackframe.h +++ b/arch/mips/include/asm/stackframe.h @@ -89,8 +89,10 @@ #endif LONG_S v1, PT_EPC(sp) LONG_S $25, PT_R25(sp) + MFC0 v1, CP0_BADVADDR LONG_S $28, PT_R28(sp) LONG_S $31, PT_R31(sp) + LONG_S v1, PT_BVADDR(sp) .set pop .endm @@ -157,11 +159,13 @@ MTC0 v1, CP0_EPC LONG_L $31, PT_R31(sp) LONG_L $28, PT_R28(sp) + LONG_L v1, PT_BVADDR(sp) LONG_L $25, PT_R25(sp) #ifdef CONFIG_64BIT LONG_L $8, PT_R8(sp) LONG_L $9, PT_R9(sp) #endif + MTC0 v0, CP0_BADVADDR LONG_L $7, PT_R7(sp) LONG_L $6, PT_R6(sp) LONG_L $5, PT_R5(sp) diff --git a/arch/mips/lib/traps.c b/arch/mips/lib/traps.c index 45694fe7ef..638a511fee 100644 --- a/arch/mips/lib/traps.c +++ b/arch/mips/lib/traps.c @@ -153,7 +153,8 @@ static void show_regs(const struct pt_regs *regs) printf("Status: %08x\n", (uint32_t)regs->cp0_status); printf("Cause : %08x\n", (uint32_t)regs->cp0_cause); - printf("Config: %08x\n\n", read_c0_config()); + printf("Config: %08x\n", read_c0_config()); + printf("BadVA : %0*lx\n\n", field, regs->cp0_badvaddr); } void barebox_exc_handler(struct pt_regs *regs) |