From: "Shreyas B. Prabhu" <shreyas@linux.vnet.ibm.com>
To: mpe@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org, paulus@ozlabs.org,
linux-kernel@vger.kernel.org, mikey@neuling.org,
"Shreyas B. Prabhu" <shreyas@linux.vnet.ibm.com>
Subject: [PATCH 5/9] powerpc/powernv: Move idle related macros to cpuidle.h
Date: Thu, 21 Apr 2016 19:19:55 +0530 [thread overview]
Message-ID: <1461246599-6098-6-git-send-email-shreyas@linux.vnet.ibm.com> (raw)
In-Reply-To: <1461246599-6098-1-git-send-email-shreyas@linux.vnet.ibm.com>
Move idle related macros to a common location asm/cpuidle.h so that
they can be used for stop instruction support.
Signed-off-by: Shreyas B. Prabhy <shreyas@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/cpuidle.h | 27 +++++++++++++++++++++++++++
arch/powerpc/kernel/idle_power7.S | 26 --------------------------
2 files changed, 27 insertions(+), 26 deletions(-)
diff --git a/arch/powerpc/include/asm/cpuidle.h b/arch/powerpc/include/asm/cpuidle.h
index d2f99ca..faa97b7 100644
--- a/arch/powerpc/include/asm/cpuidle.h
+++ b/arch/powerpc/include/asm/cpuidle.h
@@ -17,4 +17,31 @@ extern u32 pnv_fastsleep_workaround_at_exit[];
#endif
+/* Idle state entry routines */
+#ifdef CONFIG_PPC_P7_NAP
+#define IDLE_STATE_ENTER_SEQ(IDLE_INST) \
+ /* Magic NAP/SLEEP/WINKLE mode enter sequence */ \
+ std r0,0(r1); \
+ ptesync; \
+ ld r0,0(r1); \
+1: cmp cr0,r0,r0; \
+ bne 1b; \
+ IDLE_INST; \
+ b .
+#endif /* CONFIG_PPC_P7_NAP */
+
+/*
+ * Use unused space in the interrupt stack to save and restore
+ * registers for deep-idle support.
+ */
+#define _SDR1 GPR3
+#define _RPR GPR4
+#define _SPURR GPR5
+#define _PURR GPR6
+#define _TSCR GPR7
+#define _DSCR GPR8
+#define _AMOR GPR9
+#define _WORT GPR10
+#define _WORC GPR11
+
#endif
diff --git a/arch/powerpc/kernel/idle_power7.S b/arch/powerpc/kernel/idle_power7.S
index 1ea71d4..6a24769 100644
--- a/arch/powerpc/kernel/idle_power7.S
+++ b/arch/powerpc/kernel/idle_power7.S
@@ -24,32 +24,6 @@
#undef DEBUG
-/*
- * Use unused space in the interrupt stack to save and restore
- * registers for winkle support.
- */
-#define _SDR1 GPR3
-#define _RPR GPR4
-#define _SPURR GPR5
-#define _PURR GPR6
-#define _TSCR GPR7
-#define _DSCR GPR8
-#define _AMOR GPR9
-#define _WORT GPR10
-#define _WORC GPR11
-
-/* Idle state entry routines */
-
-#define IDLE_STATE_ENTER_SEQ(IDLE_INST) \
- /* Magic NAP/SLEEP/WINKLE mode enter sequence */ \
- std r0,0(r1); \
- ptesync; \
- ld r0,0(r1); \
-1: cmp cr0,r0,r0; \
- bne 1b; \
- IDLE_INST; \
- b .
-
.text
/*
--
2.1.4
next prev parent reply other threads:[~2016-04-21 13:50 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-21 13:49 [PATCH 0/9] powerpc/powernv/cpuidle: Add support for POWER ISA v3 idle states Shreyas B. Prabhu
2016-04-21 13:49 ` [PATCH 1/9] powerpc/powernv: Move CHECK_HMI_INTERRUPT to exception-64s header Shreyas B. Prabhu
2016-04-21 13:49 ` [PATCH 2/9] powerpc/kvm: make hypervisor state restore a function Shreyas B. Prabhu
2016-04-21 13:49 ` [PATCH 3/9] powerpc/powernv: Move idle code usable by multiple hardware to common location Shreyas B. Prabhu
2016-04-21 13:49 ` [PATCH 4/9] powerpc/powernv: Make power7_powersave_common more generic Shreyas B. Prabhu
2016-04-21 13:49 ` Shreyas B. Prabhu [this message]
2016-04-21 13:49 ` [PATCH 6/9] powerpc/powernv: set power_save func after the idle states are initialized Shreyas B. Prabhu
2016-04-21 13:49 ` [PATCH 7/9] powerpc/powernv: Add platform support for stop instruction Shreyas B. Prabhu
2016-05-03 5:25 ` Michael Neuling
2016-05-03 6:29 ` Shreyas B Prabhu
2016-04-21 13:49 ` [PATCH 8/9] cpuidle/powernv: Add support for POWER ISA v3 idle states Shreyas B. Prabhu
2016-04-21 13:49 ` [PATCH 9/9] powerpc/powernv: Use deepest stop state when cpu is offlined Shreyas B. Prabhu
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