[PATCH 8/8] powerpc/xmon: Add some more elements to the existing PACA dump list
Anshuman Khandual
khandual at linux.vnet.ibm.com
Wed Jul 29 17:10:05 AEST 2015
This patch adds a set of new elements to the existing PACA dump list
inside an xmon session which can be listed below improving the overall
xmon debug support.
(1) hmi_event_available
(2) dscr_default
(3) vmalloc_sllp
(4) slb_cache_ptr
(5) sprg_vdso
(6) tm_scratch
(7) core_idle_state_ptr
(8) thread_idle_state
(9) thread_mask
(10) slb_shadow
(11) pgd
(12) kernel_pgd
(13) tcd_ptr
(14) mc_kstack
(15) crit_kstack
(16) dbg_kstack
(17) user_time
(18) system_time
(19) user_time_scaled
(20) starttime
(21) starttime_user
(22) startspurr
(23) utime_sspurr
(24) stolen_time
With this patch, a typical xmon PACA dump looks something like this.
paca for cpu 0x0 @ c00000000fdc0000:
possible = yes
present = yes
online = yes
lock_token = 0x8000 (0x8)
paca_index = 0x0 (0xa)
kernel_toc = 0xc000000000e79300 (0x10)
kernelbase = 0xc000000000000000 (0x18)
kernel_msr = 0xb000000000001032 (0x20)
emergency_sp = 0xc00000003fff0000 (0x28)
mc_emergency_sp = 0xc00000003ffec000 (0x2e0)
in_mce = 0x0 (0x2e8)
hmi_event_available = 0x0 (0x2ea)
data_offset = 0xfa9f0000 (0x30)
hw_cpu_id = 0x0 (0x38)
cpu_start = 0x1 (0x3a)
kexec_state = 0x0 (0x3b)
slb_shadow[0]: = 0xc000000008000000 0x40016e7779000510
slb_shadow[1]: = 0xd000000008000001 0x400142add1000510
dscr_default = 0x0 (0x58)
vmalloc_sllp = 0x510 (0x1b8)
slb_cache_ptr = 0x3 (0x1ba)
slb_cache[0]: = 0x3f000
slb_cache[1]: = 0x1
slb_cache[2]: = 0x1000
__current = 0xc0000000a7406b70 (0x290)
kstack = 0xc0000000a750fe30 (0x298)
stab_rr = 0x11 (0x2a0)
saved_r1 = 0xc0000000a750f360 (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)
sprg_vdso = 0x0 (0x2c0)
tm_scratch = 0x800000010280f032 (0x2c8)
core_idle_state_ptr = (null) (0x2d0)
thread_idle_state = 0x0 (0x2d8)
thread_mask = 0x0 (0x2d9)
subcore_sibling_mask = 0x0 (0x2da)
user_time = 0x18895 (0x2f0)
system_time = 0x11dc2 (0x2f8)
user_time_scaled = 0x0 (0x300)
starttime = 0xe64688b4688a (0x308)
starttime_user = 0xe64688b466d1 (0x310)
startspurr = 0x1a79afea8 (0x318)
utime_sspurr = 0x0 (0x320)
stolen_time = 0x0 (0x328)
Signed-off-by: Anshuman Khandual <khandual at linux.vnet.ibm.com>
---
arch/powerpc/xmon/xmon.c | 57 ++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 53 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index bc1b066a..1e67c8b 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -2073,6 +2073,9 @@ static void xmon_rawdump (unsigned long adrs, long ndump)
static void dump_one_paca(int cpu)
{
struct paca_struct *p;
+#ifdef CONFIG_PPC_STD_MMU_64
+ int i = 0;
+#endif
if (setjmp(bus_error_jmp) != 0) {
printf("*** Error dumping paca for cpu 0x%x!\n", cpu);
@@ -2086,12 +2089,12 @@ static void dump_one_paca(int cpu)
printf("paca for cpu 0x%x @ %p:\n", cpu, p);
- printf(" %-*s = %s\n", 16, "possible", cpu_possible(cpu) ? "yes" : "no");
- printf(" %-*s = %s\n", 16, "present", cpu_present(cpu) ? "yes" : "no");
- printf(" %-*s = %s\n", 16, "online", cpu_online(cpu) ? "yes" : "no");
+ printf(" %-*s = %s\n", 20, "possible", cpu_possible(cpu) ? "yes" : "no");
+ printf(" %-*s = %s\n", 20, "present", cpu_present(cpu) ? "yes" : "no");
+ printf(" %-*s = %s\n", 20, "online", cpu_online(cpu) ? "yes" : "no");
#define DUMP(paca, name, format) \
- printf(" %-*s = %#-*"format"\t(0x%lx)\n", 16, #name, 18, paca->name, \
+ printf(" %-*s = %#-*"format"\t(0x%lx)\n", 20, #name, 18, paca->name, \
offsetof(struct paca_struct, name));
DUMP(p, lock_token, "x");
@@ -2103,11 +2106,37 @@ static void dump_one_paca(int cpu)
#ifdef CONFIG_PPC_BOOK3S_64
DUMP(p, mc_emergency_sp, "p");
DUMP(p, in_mce, "x");
+ DUMP(p, hmi_event_available, "x");
#endif
DUMP(p, data_offset, "lx");
DUMP(p, hw_cpu_id, "x");
DUMP(p, cpu_start, "x");
DUMP(p, kexec_state, "x");
+#ifdef CONFIG_PPC_STD_MMU_64
+ for (i = 0; i < SLB_NUM_BOLTED; i++) {
+ if (p->slb_shadow_ptr->save_area[i].esid ||
+ p->slb_shadow_ptr->save_area[i].vsid) {
+ printf(" slb_shadow[%d]: = 0x%lx 0x%lx\n", i,
+ p->slb_shadow_ptr->save_area[i].esid,
+ p->slb_shadow_ptr->save_area[i].vsid);
+ }
+ }
+#endif
+ DUMP(p, dscr_default, "llx");
+#ifdef CONFIG_PPC_STD_MMU_64
+ DUMP(p, vmalloc_sllp, "x");
+ DUMP(p, slb_cache_ptr, "x");
+ for (i = 0; i < p->slb_cache_ptr; i++)
+ printf(" slb_cache[%d]: = 0x%lx\n", i, p->slb_cache[i]);
+#endif
+#ifdef CONFIG_PPC_BOOK3E
+ DUMP(p, pgd, "p");
+ DUMP(p, kernel_pgd, "p");
+ DUMP(p, tcd_ptr, "p");
+ DUMP(p, mc_kstack, "p");
+ DUMP(p, crit_kstack, "p");
+ DUMP(p, dbg_kstack, "p");
+#endif
DUMP(p, __current, "p");
DUMP(p, kstack, "lx");
DUMP(p, stab_rr, "lx");
@@ -2118,7 +2147,27 @@ static void dump_one_paca(int cpu)
DUMP(p, io_sync, "x");
DUMP(p, irq_work_pending, "x");
DUMP(p, nap_state_lost, "x");
+ DUMP(p, sprg_vdso, "llx");
+
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+ DUMP(p, tm_scratch, "llx");
+#endif
+
+#ifdef CONFIG_PPC_POWERNV
+ DUMP(p, core_idle_state_ptr, "p");
+ DUMP(p, thread_idle_state, "x");
+ DUMP(p, thread_mask, "x");
+ DUMP(p, subcore_sibling_mask, "x");
+#endif
+ DUMP(p, user_time, "llx");
+ DUMP(p, system_time, "llx");
+ DUMP(p, user_time_scaled, "llx");
+ DUMP(p, starttime, "llx");
+ DUMP(p, starttime_user, "llx");
+ DUMP(p, startspurr, "llx");
+ DUMP(p, utime_sspurr, "llx");
+ DUMP(p, stolen_time, "llx");
#undef DUMP
catch_memory_errors = 0;
--
2.1.0
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