linux-kernel - [RFC PATCH v3 3/4] arm64: smp: move the pen to a header file

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Date:	Fri, 10 Apr 2015 15:43:24 -0500
From:	Kumar Gala <galak@...eaurora.org>
To:	linux-arm-msm@...r.kernel.org
Cc:	Abhimanyu Kapur <abhimany@...eaurora.org>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	arm@...nel.org, devicetree@...r.kernel.org,
	catalin.marinas@....com, will.deacon@....com,
	Kumar Gala <galak@...eaurora.org>
Subject: [RFC PATCH v3 3/4] arm64: smp: move the pen to a header file

From: Abhimanyu Kapur <abhimany@...eaurora.org>

Move the secondary_pen_release variable and the secondary_holding_pen
entry function to asm/smp_plat.h so that the other cpu ops implementations
can share them.

Signed-off-by: Abhimanyu Kapur <abhimany@...eaurora.org>
Signed-off-by: Kumar Gala <galak@...eaurora.org>
---
 arch/arm64/include/asm/smp_plat.h  | 2 ++
 arch/arm64/kernel/smp.c            | 1 +
 arch/arm64/kernel/smp_spin_table.c | 3 ---
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/smp_plat.h b/arch/arm64/include/asm/smp_plat.h
index 59e2823..235ff04 100644
--- a/arch/arm64/include/asm/smp_plat.h
+++ b/arch/arm64/include/asm/smp_plat.h
@@ -34,10 +34,12 @@ static inline u32 mpidr_hash_size(void)
 	return 1 << mpidr_hash.bits;
 }
 
+extern void secondary_holding_pen(void);
 /*
  * Logical CPU mapping.
  */
 extern u64 __cpu_logical_map[NR_CPUS];
 #define cpu_logical_map(cpu)    __cpu_logical_map[cpu]
+extern volatile unsigned long secondary_holding_pen_release;
 
 #endif /* __ASM_SMP_PLAT_H */
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 328b8ce..4ce1f23 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -61,6 +61,7 @@
  * where to place its SVC stack
  */
 struct secondary_data secondary_data;
+volatile unsigned long secondary_holding_pen_release = INVALID_HWID;
 
 enum ipi_msg_type {
 	IPI_RESCHEDULE,
diff --git a/arch/arm64/kernel/smp_spin_table.c b/arch/arm64/kernel/smp_spin_table.c
index 14944e5..808536e 100644
--- a/arch/arm64/kernel/smp_spin_table.c
+++ b/arch/arm64/kernel/smp_spin_table.c
@@ -28,9 +28,6 @@
 #include <asm/io.h>
 #include <asm/smp_plat.h>
 
-extern void secondary_holding_pen(void);
-volatile unsigned long secondary_holding_pen_release = INVALID_HWID;
-
 static phys_addr_t cpu_release_addr[NR_CPUS];
 
 /*
-- 
Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

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