powerpc/xmon: Paginate kernel log buffer display
The kernel log buffer is often much longer than the size of a terminal
so paginate it's output.
Signed-off-by: Sam Bobroff <sam.bobroff@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index f829baf..bf8f49a 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -242,9 +242,7 @@
" u dump TLB\n"
#endif
" ? help\n"
-#ifdef CONFIG_PPC64
-" # n limit output to n lines per page (dump paca only)\n"
-#endif
+" # n limit output to n lines per page (for dp, dpa, dl)\n"
" zr reboot\n\
zh halt\n"
;
@@ -2333,10 +2331,12 @@
sync();
kmsg_dump_rewind_nolock(&dumper);
+ xmon_start_pagination();
while (kmsg_dump_get_line_nolock(&dumper, false, buf, sizeof(buf), &len)) {
buf[len] = '\0';
printf("%s", buf);
}
+ xmon_end_pagination();
sync();
/* wait a little while to see if we get a machine check */