3c1f6e358d
Patches are generated using the "format-patch" command from the following location: *https://www.codeaurora.org/cgit/quic/kernel/galak-msm/log/?h=apq_ipq_base *rev=0771849495b4128cac2faf7d49c85c729fc48b20 Patches numbered 76/77/102/103 have already been integrated in 3.14.12, so they're not in this list. All these patches are either integrated are pending integration into kernel.org, therefore these patches should go away once the kernel gets upgraded to 3.16. Support is currently limited to AP148 board but can be extended to other platforms in the future. These changes do not cover ethernet connectivity. Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org> SVN-Revision: 42334
120 lines
3.2 KiB
Diff
120 lines
3.2 KiB
Diff
From b5a3a19e3efa6238c6a00a8f36a8ab2c25eeebc3 Mon Sep 17 00:00:00 2001
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From: Kumar Gala <galak@codeaurora.org>
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Date: Fri, 31 Jan 2014 13:48:29 -0600
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Subject: [PATCH 003/182] ARM: msm: kill off hotplug.c
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Right now hotplug.c only really implements msm_cpu_die as a wfi. Just
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move that implementation into platsmp.c. At the same time we use the
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existing wfi() instead of inline asm.
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Signed-off-by: Kumar Gala <galak@codeaurora.org>
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---
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arch/arm/mach-msm/Makefile | 1 -
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arch/arm/mach-msm/common.h | 1 -
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arch/arm/mach-msm/hotplug.c | 51 -------------------------------------------
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arch/arm/mach-msm/platsmp.c | 7 ++++++
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4 files changed, 7 insertions(+), 53 deletions(-)
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delete mode 100644 arch/arm/mach-msm/hotplug.c
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diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
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index 721f27f..8327f60 100644
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--- a/arch/arm/mach-msm/Makefile
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+++ b/arch/arm/mach-msm/Makefile
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@@ -18,7 +18,6 @@ obj-$(CONFIG_MSM_SCM) += scm.o scm-boot.o
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CFLAGS_scm.o :=$(call as-instr,.arch_extension sec,-DREQUIRES_SEC=1)
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-obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
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obj-$(CONFIG_SMP) += platsmp.o
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obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o devices-msm7x00.o
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diff --git a/arch/arm/mach-msm/common.h b/arch/arm/mach-msm/common.h
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index 33c7725..0a4899b 100644
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--- a/arch/arm/mach-msm/common.h
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+++ b/arch/arm/mach-msm/common.h
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@@ -24,7 +24,6 @@ extern void __iomem *__msm_ioremap_caller(phys_addr_t phys_addr, size_t size,
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unsigned int mtype, void *caller);
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extern struct smp_operations msm_smp_ops;
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-extern void msm_cpu_die(unsigned int cpu);
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struct msm_mmc_platform_data;
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diff --git a/arch/arm/mach-msm/hotplug.c b/arch/arm/mach-msm/hotplug.c
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deleted file mode 100644
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index cea80fc..0000000
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--- a/arch/arm/mach-msm/hotplug.c
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+++ /dev/null
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@@ -1,51 +0,0 @@
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-/*
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- * Copyright (C) 2002 ARM Ltd.
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- * All Rights Reserved
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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- */
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-#include <linux/kernel.h>
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-#include <linux/errno.h>
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-#include <linux/smp.h>
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-
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-#include <asm/smp_plat.h>
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-
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-#include "common.h"
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-
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-static inline void cpu_enter_lowpower(void)
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-{
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-}
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-
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-static inline void cpu_leave_lowpower(void)
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-{
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-}
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-
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-static inline void platform_do_lowpower(unsigned int cpu)
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-{
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- asm("wfi"
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- :
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- :
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- : "memory", "cc");
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-}
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-
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-/*
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- * platform-specific code to shutdown a CPU
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- *
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- * Called with IRQs disabled
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- */
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-void __ref msm_cpu_die(unsigned int cpu)
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-{
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- /*
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- * we're ready for shutdown now, so do it
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- */
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- cpu_enter_lowpower();
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- platform_do_lowpower(cpu);
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-
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- /*
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- * bring this CPU back into the world of cache
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- * coherency, and then restore interrupts
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- */
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- cpu_leave_lowpower();
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-}
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diff --git a/arch/arm/mach-msm/platsmp.c b/arch/arm/mach-msm/platsmp.c
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index 3721b31..251a91e 100644
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--- a/arch/arm/mach-msm/platsmp.c
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+++ b/arch/arm/mach-msm/platsmp.c
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@@ -29,6 +29,13 @@ extern void secondary_startup(void);
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static DEFINE_SPINLOCK(boot_lock);
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+#ifdef CONFIG_HOTPLUG_CPU
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+static void __ref msm_cpu_die(unsigned int cpu)
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+{
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+ wfi();
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+}
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+#endif
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+
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static inline int get_core_count(void)
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{
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/* 1 + the PART[1:0] field of MIDR */
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--
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1.7.10.4
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