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| author | Sam bobroff <sam.bobroff@au1.ibm.com> | 2015-10-08 11:50:23 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-10-15 20:32:01 +1100 |
| commit | 958b7c80507a6eb847777b0d6d99d2cad08c529c (patch) | |
| tree | 045104d89a48fe4c75a2f34625224c94955830e9 /arch/powerpc/xmon/xmon.c | |
| parent | b340587e68b479e52039f800d7c60abd417e1975 (diff) | |
| download | lwn-958b7c80507a6eb847777b0d6d99d2cad08c529c.tar.gz lwn-958b7c80507a6eb847777b0d6d99d2cad08c529c.zip | |
powerpc/xmon: Paged output for paca display
The paca display is already more than 24 lines, which can be problematic
if you have an old school 80x24 terminal, or more likely you are on a
virtual terminal which does not scroll for whatever reason.
This patch adds a new command "#", which takes a single (hex) numeric
argument: lines per page. It will cause the output of "dp" and "dpa"
to be broken into pages, if necessary.
Sample output:
0:mon> # 10
0:mon> dp1
paca for cpu 0x1 @ c00000000fdc0480:
possible = yes
present = yes
online = yes
lock_token = 0x8000 (0x8)
paca_index = 0x1 (0xa)
kernel_toc = 0xc000000000eb2400 (0x10)
kernelbase = 0xc000000000000000 (0x18)
kernel_msr = 0xb000000000001032 (0x20)
emergency_sp = 0xc00000003ffe8000 (0x28)
mc_emergency_sp = 0xc00000003ffe4000 (0x2e0)
in_mce = 0x0 (0x2e8)
data_offset = 0x7f170000 (0x30)
hw_cpu_id = 0x8 (0x38)
cpu_start = 0x1 (0x3a)
kexec_state = 0x0 (0x3b)
[Hit a key (a:all, q:truncate, any:next page)]
0:mon>
__current = 0xc00000007e696620 (0x290)
kstack = 0xc00000007e6ebe30 (0x298)
stab_rr = 0xb (0x2a0)
saved_r1 = 0xc00000007ef37860 (0x2a8)
trap_save = 0x0 (0x2b8)
soft_enabled = 0x0 (0x2ba)
irq_happened = 0x1 (0x2bb)
io_sync = 0x0 (0x2bc)
irq_work_pending = 0x0 (0x2bd)
nap_state_lost = 0x0 (0x2be)
0:mon>
Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
[mpe: Use bool, make some variables static]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/xmon/xmon.c')
| -rw-r--r-- | arch/powerpc/xmon/xmon.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 6ef1231c6e9c..f829baf45fd7 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -242,6 +242,9 @@ Commands:\n\ " u dump TLB\n" #endif " ? help\n" +#ifdef CONFIG_PPC64 +" # n limit output to n lines per page (dump paca only)\n" +#endif " zr reboot\n\ zh halt\n" ; @@ -833,6 +836,16 @@ static void remove_cpu_bpts(void) write_ciabr(0); } +static void set_lpp_cmd(void) +{ + unsigned long lpp; + + if (!scanhex(&lpp)) { + printf("Invalid number.\n"); + lpp = 0; + } + xmon_set_pagination_lpp(lpp); +} /* Command interpreting routine */ static char *last_cmd; @@ -924,6 +937,9 @@ cmds(struct pt_regs *excp) case '?': xmon_puts(help_string); break; + case '#': + set_lpp_cmd(); + break; case 'b': bpt_cmds(); break; @@ -2166,7 +2182,9 @@ dump(void) #ifdef CONFIG_PPC64 if (c == 'p') { + xmon_start_pagination(); dump_pacas(); + xmon_end_pagination(); return; } #endif |