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armv8: dump registers when system crash 

default provide: grf, pmugrf, cru and pmucru, it looks like:

rockchip,px30-cru:
ff2b0000:  0000304b 00001441 00000001 00000007
ff2b0010:  00007f00 00000000 00000000 00000000
ff2b0020:  00003053 00001441 00000001 00000007
......

rockchip,px30-grf:
ff140000:  00002222 00002222 00002222 00001111
ff140010:  00000000 00000000 00002200 00000033
ff140020:  00000000 00000000 00000000 00000202
......

Change-Id: I1630b07cb9412103b737ac4c2f6d86cfe3c81fc1
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
This commit is contained in:
Joseph Chen 2018-07-13 15:25:59 +08:00 committed by Jianhong Chen
parent 737e12167d
commit 24cd8f3602
2 changed files with 14 additions and 0 deletions
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8
arch/arm/lib/interrupts_64.c
View File

@ -206,6 +206,14 @@ void show_regs(struct pt_regs *regs)
printf("x%-2d: %016lx x%-2d: %016lx\n",
i, regs->regs[i], i+1, regs->regs[i+1]);
printf("\n");
#ifdef CONFIG_ROCKCHIP_CRASH_DUMP
iomem_show_by_compatible("-cru", 0, 0x400);
iomem_show_by_compatible("-pmucru", 0, 0x400);
iomem_show_by_compatible("-grf", 0, 0x400);
iomem_show_by_compatible("-pmugrf", 0, 0x400);
/* tobe add here ... */
#endif
}
#else

6
arch/arm/mach-rockchip/Kconfig
View File

@ -432,6 +432,12 @@ config ROCKCHIP_DEBUGGER
and dump pt_regs when the timeout event trigger. This helps us to know cpu
state when system hang.
config ROCKCHIP_CRASH_DUMP
bool "Rockchip crash dump registers"
help
This enable dump registers when system crash, the registers you would like
to dump can be added in show_regs().
config GICV2
bool "ARM GICv2"