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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-02 04:11:38 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-02 04:11:38 +0200
commit9cd11c0c47b8690b47e7573311ce5c483cb344ed (patch)
tree59f51c2bb3f73b21005105095d7321d35616ca9d /arch/arm/mach-tegra/platsmp.c
parentMerge tag 'docs' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc (diff)
parentARM: add v7 multi-platform defconfig (diff)
downloadlinux-9cd11c0c47b8690b47e7573311ce5c483cb344ed.tar.xz
linux-9cd11c0c47b8690b47e7573311ce5c483cb344ed.zip
Merge tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc multiplatform enablement from Olof Johansson: "This is a pretty significant branch. It's the introduction of the first multiplatform support on ARM, and with this (and the later branch) merged, it is now possible to build one kernel that contains support for highbank, vexpress, mvebu, socfpga, and picoxcell. More platforms will be convered over in the next few releases. Two critical last things had to be done for this to be practical and possible: * Today each platform has its own include directory under mach-<mach>/include/mach/*, and traditionally that is where a lot of driver/platform shared definitions have gone, such as platform data structures. They now need to move out to a common location instead, and this branch moves a large number of those out to include/linux/platform_data. * Each platform used to list the device trees to compile for its boards in mach-<mach>/Makefile.boot. Both of the above changes will mean that there are some merge conflicts to come (and some to resolve here). It's a one-time move and once it settles in, we should be good for quite a while. Sorry for the overhead." Fix conflicts as per Olof. * tag 'multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (51 commits) ARM: add v7 multi-platform defconfig ARM: msm: Move core.h contents into common.h ARM: highbank: call highbank_pm_init from .init_machine ARM: dtb: move all dtb targets to common Makefile ARM: spear: move platform_data definitions ARM: samsung: move platform_data definitions ARM: orion: move platform_data definitions ARM: vexpress: convert to multi-platform ARM: initial multiplatform support ARM: mvebu: move armada-370-xp.h in mach dir ARM: vexpress: remove dependency on mach/* headers ARM: picoxcell: remove dependency on mach/* headers ARM: move all dtb targets out of Makefile.boot ARM: picoxcell: move debug macros to include/debug ARM: socfpga: move debug macros to include/debug ARM: mvebu: move debug macros to include/debug ARM: vexpress: move debug macros to include/debug ARM: highbank: move debug macros to include/debug ARM: move debug macros to common location ARM: make mach/gpio.h headers optional ...
Diffstat (limited to 'arch/arm/mach-tegra/platsmp.c')
-rw-r--r--arch/arm/mach-tegra/platsmp.c21
1 files changed, 17 insertions, 4 deletions
diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c
index 96ed1718eef0..81cb26591acf 100644
--- a/arch/arm/mach-tegra/platsmp.c
+++ b/arch/arm/mach-tegra/platsmp.c
@@ -33,6 +33,8 @@
#include "reset.h"
#include "tegra_cpu_car.h"
+#include "common.h"
+
extern void tegra_secondary_startup(void);
static void __iomem *scu_base = IO_ADDRESS(TEGRA_ARM_PERIF_BASE);
@@ -40,7 +42,7 @@ static void __iomem *scu_base = IO_ADDRESS(TEGRA_ARM_PERIF_BASE);
#define EVP_CPU_RESET_VECTOR \
(IO_ADDRESS(TEGRA_EXCEPTION_VECTORS_BASE) + 0x100)
-void __cpuinit platform_secondary_init(unsigned int cpu)
+static void __cpuinit tegra_secondary_init(unsigned int cpu)
{
/*
* if any interrupts are already enabled for the primary
@@ -100,7 +102,7 @@ static int tegra30_power_up_cpu(unsigned int cpu)
return 0;
}
-int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
+static int __cpuinit tegra_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
int status;
@@ -146,7 +148,7 @@ done:
* Initialise the CPU possible map early - this describes the CPUs
* which may be present or become present in the system.
*/
-void __init smp_init_cpus(void)
+static void __init tegra_smp_init_cpus(void)
{
unsigned int i, ncores = scu_get_core_count(scu_base);
@@ -162,8 +164,19 @@ void __init smp_init_cpus(void)
set_smp_cross_call(gic_raise_softirq);
}
-void __init platform_smp_prepare_cpus(unsigned int max_cpus)
+static void __init tegra_smp_prepare_cpus(unsigned int max_cpus)
{
tegra_cpu_reset_handler_init();
scu_enable(scu_base);
}
+
+struct smp_operations tegra_smp_ops __initdata = {
+ .smp_init_cpus = tegra_smp_init_cpus,
+ .smp_prepare_cpus = tegra_smp_prepare_cpus,
+ .smp_secondary_init = tegra_secondary_init,
+ .smp_boot_secondary = tegra_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+ .cpu_die = tegra_cpu_die,
+ .cpu_disable = tegra_cpu_disable,
+#endif
+};