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This was originally motivated by a desire to see the mapping between logical and hardware cpu numbers. But it seemed that it made more sense to just add a command to dump (most of) the paca. With no arguments "dp" will dump the paca for the current cpu. It also takes an argument, eg. "dp 3" which is the logical cpu number in hex. This form does not check if the cpu is possible, but displays the paca regardless, as well as the cpu's state in the possible, present and online masks. Thirdly, "dpa" will display the paca for all possible cpus. If there are no possible cpus, like early in boot, it will tell you that. Sample output, number in brackets is the offset into the struct: 2:mon> dp 3 paca for cpu 0x3 @ c00000000ff20a80: possible = yes present = yes online = yes lock_token = 0x8000 (0x8) paca_index = 0x3 (0xa) kernel_toc = 0xc00000000144f990 (0x10) kernelbase = 0xc000000000000000 (0x18) kernel_msr = 0xb000000000001032 (0x20) stab_real = 0x0 (0x28) stab_addr = 0x0 (0x30) emergency_sp = 0xc00000003ffe4000 (0x38) data_offset = 0xa40000 (0x40) hw_cpu_id = 0x9 (0x50) cpu_start = 0x1 (0x52) kexec_state = 0x0 (0x53) __current = 0xc00000007e568680 (0x218) kstack = 0xc00000007e5a3e30 (0x220) stab_rr = 0x1a (0x228) saved_r1 = 0xc00000007e7cb450 (0x230) trap_save = 0x0 (0x240) soft_enabled = 0x0 (0x242) irq_happened = 0x0 (0x243) io_sync = 0x0 (0x244) irq_work_pending = 0x0 (0x245) nap_state_lost = 0x0 (0x246) Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> |
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| .. | ||
| ansidecl.h | ||
| dis-asm.h | ||
| Makefile | ||
| nonstdio.c | ||
| nonstdio.h | ||
| ppc-dis.c | ||
| ppc-opc.c | ||
| ppc.h | ||
| spu-dis.c | ||
| spu-insns.h | ||
| spu-opc.c | ||
| spu.h | ||
| start.c | ||
| xmon.c | ||