From: Nicholas Piggin <npiggin@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>,
"Naveen N . Rao" <naveen.n.rao@linux.vnet.ibm.com>,
Ganesh Goudar <ganeshgr@linux.ibm.com>,
Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH v3 12/15] powerpc: ftrace_enabled helper
Date: Tue, 7 Apr 2020 15:16:33 +1000 [thread overview]
Message-ID: <20200407051636.648369-13-npiggin@gmail.com> (raw)
In-Reply-To: <20200407051636.648369-1-npiggin@gmail.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/include/asm/ftrace.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/powerpc/include/asm/ftrace.h b/arch/powerpc/include/asm/ftrace.h
index f54a08a2cd70..bc76970b6ee5 100644
--- a/arch/powerpc/include/asm/ftrace.h
+++ b/arch/powerpc/include/asm/ftrace.h
@@ -108,9 +108,23 @@ static inline void this_cpu_enable_ftrace(void)
{
get_paca()->ftrace_enabled = 1;
}
+
+/* Disable ftrace on this CPU if possible (may not be implemented) */
+static inline void this_cpu_set_ftrace_enabled(u8 ftrace_enabled)
+{
+ get_paca()->ftrace_enabled = ftrace_enabled;
+}
+
+static inline u8 this_cpu_get_ftrace_enabled(void)
+{
+ return get_paca()->ftrace_enabled;
+}
+
#else /* CONFIG_PPC64 */
static inline void this_cpu_disable_ftrace(void) { }
static inline void this_cpu_enable_ftrace(void) { }
+static inline void this_cpu_set_ftrace_enabled(u8 ftrace_enabled) { }
+static inline u8 this_cpu_get_ftrace_enabled(void) { return 1; }
#endif /* CONFIG_PPC64 */
#endif /* !__ASSEMBLY__ */
--
2.23.0
next prev parent reply other threads:[~2020-04-07 5:42 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-07 5:16 [PATCH v3 00/15] powerpc/64: machine check and system reset fixes Nicholas Piggin
2020-04-07 5:16 ` [PATCH v3 01/15] powerpc/64s/exception: Fix machine check no-loss idle wakeup Nicholas Piggin
2020-04-07 5:16 ` [PATCH v3 02/15] powerpc/64s/exceptions: Fix in_mce accounting in unrecoverable path Nicholas Piggin
2020-04-07 5:16 ` [PATCH v3 03/15] powerpc/64s/exceptions: Change irq reconcile for NMIs from reusing _DAR to RESULT Nicholas Piggin
2020-04-07 5:16 ` [PATCH v3 04/15] powerpc/64s/exceptions: machine check reconcile irq state Nicholas Piggin
2020-04-07 5:16 ` [PATCH v3 05/15] powerpc/pseries/ras: avoid calling rtas_token in NMI paths Nicholas Piggin
2020-04-07 5:42 ` Christophe Leroy
2020-04-07 5:16 ` [PATCH v3 06/15] powerpc/pseries/ras: FWNMI_VALID off by one Nicholas Piggin
2020-04-07 5:16 ` [PATCH v3 07/15] powerpc/pseries/ras: fwnmi avoid modifying r3 in error case Nicholas Piggin
2020-04-07 5:16 ` [PATCH v3 08/15] powerpc/pseries/ras: fwnmi sreset should not interlock Nicholas Piggin
2020-04-07 5:41 ` Christophe Leroy
2020-04-07 5:16 ` [PATCH v3 09/15] powerpc/pseries: limit machine check stack to 4GB Nicholas Piggin
2020-04-07 5:38 ` Christophe Leroy
2020-04-07 5:16 ` [PATCH v3 10/15] powerpc/pseries: machine check use rtas_call_unlocked with args on stack Nicholas Piggin
2020-04-07 5:16 ` [PATCH v3 11/15] powerpc/64s: machine check interrupt update NMI accounting Nicholas Piggin
2020-04-07 5:37 ` Christophe Leroy
2020-05-06 3:50 ` Nicholas Piggin
2020-04-12 8:46 ` kbuild test robot
2020-04-07 5:16 ` Nicholas Piggin [this message]
2020-04-07 5:45 ` [PATCH v3 12/15] powerpc: ftrace_enabled helper Christophe Leroy
2020-04-07 5:16 ` [PATCH v3 13/15] powerpc/64s: machine check do not trace real-mode handler Nicholas Piggin
2020-04-07 5:45 ` Christophe Leroy
2020-04-07 5:16 ` [PATCH v3 14/15] powerpc/64s: system reset do not trace Nicholas Piggin
2020-04-07 5:45 ` Christophe Leroy
2020-04-07 5:16 ` [PATCH v3 15/15] powerpc: make unrecoverable NMIs die instead of panic Nicholas Piggin
2020-04-07 5:46 ` Christophe Leroy
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