summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-exynos
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-exynos')
-rw-r--r--arch/arm/mach-exynos/common.h5
-rw-r--r--arch/arm/mach-exynos/hotplug.c18
-rw-r--r--arch/arm/mach-exynos/mach-armlex4210.c1
-rw-r--r--arch/arm/mach-exynos/mach-exynos5-dt.c1
-rw-r--r--arch/arm/mach-exynos/mach-nuri.c1
-rw-r--r--arch/arm/mach-exynos/mach-origen.c1
-rw-r--r--arch/arm/mach-exynos/mach-smdk4x12.c2
-rw-r--r--arch/arm/mach-exynos/mach-smdkv310.c2
-rw-r--r--arch/arm/mach-exynos/mach-universal_c210.c1
-rw-r--r--arch/arm/mach-exynos/platsmp.c27
10 files changed, 32 insertions, 27 deletions
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index aed2eeb0651..dac146df79a 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -14,6 +14,7 @@
extern struct sys_timer exynos4_timer;
+struct map_desc;
void exynos_init_io(struct map_desc *mach_desc, int size);
void exynos4_init_irq(void);
void exynos5_init_irq(void);
@@ -59,4 +60,8 @@ void exynos4212_register_clocks(void);
#define exynos4212_register_clocks()
#endif
+extern struct smp_operations exynos_smp_ops;
+
+extern void exynos_cpu_die(unsigned int cpu);
+
#endif /* __ARCH_ARM_MACH_EXYNOS_COMMON_H */
diff --git a/arch/arm/mach-exynos/hotplug.c b/arch/arm/mach-exynos/hotplug.c
index 9c17a0a4385..f4d7dd20cda 100644
--- a/arch/arm/mach-exynos/hotplug.c
+++ b/arch/arm/mach-exynos/hotplug.c
@@ -21,7 +21,7 @@
#include <mach/regs-pmu.h>
-extern volatile int pen_release;
+#include "common.h"
static inline void cpu_enter_lowpower(void)
{
@@ -95,17 +95,12 @@ static inline void platform_do_lowpower(unsigned int cpu, int *spurious)
}
}
-int platform_cpu_kill(unsigned int cpu)
-{
- return 1;
-}
-
/*
* platform-specific code to shutdown a CPU
*
* Called with IRQs disabled
*/
-void platform_cpu_die(unsigned int cpu)
+void __ref exynos_cpu_die(unsigned int cpu)
{
int spurious = 0;
@@ -124,12 +119,3 @@ void platform_cpu_die(unsigned int cpu)
if (spurious)
pr_warn("CPU%u: %u spurious wakeup calls\n", cpu, spurious);
}
-
-int platform_cpu_disable(unsigned int cpu)
-{
- /*
- * we don't allow CPU 0 to be shutdown (it is still too special
- * e.g. clock tick interrupts)
- */
- return cpu == 0 ? -EPERM : 0;
-}
diff --git a/arch/arm/mach-exynos/mach-armlex4210.c b/arch/arm/mach-exynos/mach-armlex4210.c
index 5a3daa0168d..3f37a5e8a1f 100644
--- a/arch/arm/mach-exynos/mach-armlex4210.c
+++ b/arch/arm/mach-exynos/mach-armlex4210.c
@@ -199,6 +199,7 @@ static void __init armlex4210_machine_init(void)
MACHINE_START(ARMLEX4210, "ARMLEX4210")
/* Maintainer: Alim Akhtar <alim.akhtar@samsung.com> */
.atag_offset = 0x100,
+ .smp = smp_ops(exynos_smp_ops),
.init_irq = exynos4_init_irq,
.map_io = armlex4210_map_io,
.handle_irq = gic_handle_irq,
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index ef770bc2318..8833060f77e 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -79,6 +79,7 @@ static char const *exynos5250_dt_compat[] __initdata = {
DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
.init_irq = exynos5_init_irq,
+ .smp = smp_ops(exynos_smp_ops),
.map_io = exynos5250_dt_map_io,
.handle_irq = gic_handle_irq,
.init_machine = exynos5250_dt_machine_init,
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index ea785fcaf6c..ffaa355c1bd 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -1383,6 +1383,7 @@ static void __init nuri_machine_init(void)
MACHINE_START(NURI, "NURI")
/* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
.atag_offset = 0x100,
+ .smp = smp_ops(exynos_smp_ops),
.init_irq = exynos4_init_irq,
.map_io = nuri_map_io,
.handle_irq = gic_handle_irq,
diff --git a/arch/arm/mach-exynos/mach-origen.c b/arch/arm/mach-exynos/mach-origen.c
index 4e574c24581..abd0e6059ab 100644
--- a/arch/arm/mach-exynos/mach-origen.c
+++ b/arch/arm/mach-exynos/mach-origen.c
@@ -806,6 +806,7 @@ static void __init origen_machine_init(void)
MACHINE_START(ORIGEN, "ORIGEN")
/* Maintainer: JeongHyeon Kim <jhkim@insignal.co.kr> */
.atag_offset = 0x100,
+ .smp = smp_ops(exynos_smp_ops),
.init_irq = exynos4_init_irq,
.map_io = origen_map_io,
.handle_irq = gic_handle_irq,
diff --git a/arch/arm/mach-exynos/mach-smdk4x12.c b/arch/arm/mach-exynos/mach-smdk4x12.c
index b26beb13ebe..964693bdc24 100644
--- a/arch/arm/mach-exynos/mach-smdk4x12.c
+++ b/arch/arm/mach-exynos/mach-smdk4x12.c
@@ -370,6 +370,7 @@ static void __init smdk4x12_machine_init(void)
MACHINE_START(SMDK4212, "SMDK4212")
/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
.atag_offset = 0x100,
+ .smp = smp_ops(exynos_smp_ops),
.init_irq = exynos4_init_irq,
.map_io = smdk4x12_map_io,
.handle_irq = gic_handle_irq,
@@ -383,6 +384,7 @@ MACHINE_START(SMDK4412, "SMDK4412")
/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
/* Maintainer: Changhwan Youn <chaos.youn@samsung.com> */
.atag_offset = 0x100,
+ .smp = smp_ops(exynos_smp_ops),
.init_irq = exynos4_init_irq,
.map_io = smdk4x12_map_io,
.handle_irq = gic_handle_irq,
diff --git a/arch/arm/mach-exynos/mach-smdkv310.c b/arch/arm/mach-exynos/mach-smdkv310.c
index 73f2bce097e..69b858ceefc 100644
--- a/arch/arm/mach-exynos/mach-smdkv310.c
+++ b/arch/arm/mach-exynos/mach-smdkv310.c
@@ -417,6 +417,7 @@ MACHINE_START(SMDKV310, "SMDKV310")
/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
/* Maintainer: Changhwan Youn <chaos.youn@samsung.com> */
.atag_offset = 0x100,
+ .smp = smp_ops(exynos_smp_ops),
.init_irq = exynos4_init_irq,
.map_io = smdkv310_map_io,
.handle_irq = gic_handle_irq,
@@ -429,6 +430,7 @@ MACHINE_END
MACHINE_START(SMDKC210, "SMDKC210")
/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
.atag_offset = 0x100,
+ .smp = smp_ops(exynos_smp_ops),
.init_irq = exynos4_init_irq,
.map_io = smdkv310_map_io,
.handle_irq = gic_handle_irq,
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c
index 4d1f40d44ed..922ca0f1179 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -1155,6 +1155,7 @@ static void __init universal_machine_init(void)
MACHINE_START(UNIVERSAL_C210, "UNIVERSAL_C210")
/* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
.atag_offset = 0x100,
+ .smp = smp_ops(exynos_smp_ops),
.init_irq = exynos4_init_irq,
.map_io = universal_map_io,
.handle_irq = gic_handle_irq,
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index 36c3984aaa4..8d57e4223bd 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -32,19 +32,14 @@
#include <plat/cpu.h>
+#include "common.h"
+
extern void exynos4_secondary_startup(void);
#define CPU1_BOOT_REG (samsung_rev() == EXYNOS4210_REV_1_1 ? \
S5P_INFORM5 : S5P_VA_SYSRAM)
/*
- * control for which core is the next to come out of the secondary
- * boot "holding pen"
- */
-
-volatile int __cpuinitdata pen_release = -1;
-
-/*
* Write pen_release in a way that is guaranteed to be visible to all
* observers, irrespective of whether they're taking part in coherency
* or not. This is necessary for the hotplug code to work reliably.
@@ -64,7 +59,7 @@ static void __iomem *scu_base_addr(void)
static DEFINE_SPINLOCK(boot_lock);
-void __cpuinit platform_secondary_init(unsigned int cpu)
+static void __cpuinit exynos_secondary_init(unsigned int cpu)
{
/*
* if any interrupts are already enabled for the primary
@@ -86,7 +81,7 @@ void __cpuinit platform_secondary_init(unsigned int cpu)
spin_unlock(&boot_lock);
}
-int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
+static int __cpuinit exynos_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
unsigned long timeout;
@@ -161,7 +156,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
* which may be present or become present in the system.
*/
-void __init smp_init_cpus(void)
+static void __init exynos_smp_init_cpus(void)
{
void __iomem *scu_base = scu_base_addr();
unsigned int i, ncores;
@@ -184,7 +179,7 @@ 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 exynos_smp_prepare_cpus(unsigned int max_cpus)
{
if (!soc_is_exynos5250())
scu_enable(scu_base_addr());
@@ -198,3 +193,13 @@ void __init platform_smp_prepare_cpus(unsigned int max_cpus)
__raw_writel(virt_to_phys(exynos4_secondary_startup),
CPU1_BOOT_REG);
}
+
+struct smp_operations exynos_smp_ops __initdata = {
+ .smp_init_cpus = exynos_smp_init_cpus,
+ .smp_prepare_cpus = exynos_smp_prepare_cpus,
+ .smp_secondary_init = exynos_secondary_init,
+ .smp_boot_secondary = exynos_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+ .cpu_die = exynos_cpu_die,
+#endif
+};
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-03 03:21:56 +0000