diff options
Diffstat (limited to 'arch/arm/mach-exynos/platsmp.c')
-rw-r--r-- | arch/arm/mach-exynos/platsmp.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c index 36c3984aaa47..f93d820ecab5 100644 --- a/arch/arm/mach-exynos/platsmp.c +++ b/arch/arm/mach-exynos/platsmp.c | |||
@@ -32,19 +32,14 @@ | |||
32 | 32 | ||
33 | #include <plat/cpu.h> | 33 | #include <plat/cpu.h> |
34 | 34 | ||
35 | #include "common.h" | ||
36 | |||
35 | extern void exynos4_secondary_startup(void); | 37 | extern void exynos4_secondary_startup(void); |
36 | 38 | ||
37 | #define CPU1_BOOT_REG (samsung_rev() == EXYNOS4210_REV_1_1 ? \ | 39 | #define CPU1_BOOT_REG (samsung_rev() == EXYNOS4210_REV_1_1 ? \ |
38 | S5P_INFORM5 : S5P_VA_SYSRAM) | 40 | S5P_INFORM5 : S5P_VA_SYSRAM) |
39 | 41 | ||
40 | /* | 42 | /* |
41 | * control for which core is the next to come out of the secondary | ||
42 | * boot "holding pen" | ||
43 | */ | ||
44 | |||
45 | volatile int __cpuinitdata pen_release = -1; | ||
46 | |||
47 | /* | ||
48 | * Write pen_release in a way that is guaranteed to be visible to all | 43 | * Write pen_release in a way that is guaranteed to be visible to all |
49 | * observers, irrespective of whether they're taking part in coherency | 44 | * observers, irrespective of whether they're taking part in coherency |
50 | * or not. This is necessary for the hotplug code to work reliably. | 45 | * or not. This is necessary for the hotplug code to work reliably. |
@@ -64,7 +59,7 @@ static void __iomem *scu_base_addr(void) | |||
64 | 59 | ||
65 | static DEFINE_SPINLOCK(boot_lock); | 60 | static DEFINE_SPINLOCK(boot_lock); |
66 | 61 | ||
67 | void __cpuinit platform_secondary_init(unsigned int cpu) | 62 | static void __cpuinit exynos_secondary_init(unsigned int cpu) |
68 | { | 63 | { |
69 | /* | 64 | /* |
70 | * if any interrupts are already enabled for the primary | 65 | * if any interrupts are already enabled for the primary |
@@ -86,7 +81,7 @@ void __cpuinit platform_secondary_init(unsigned int cpu) | |||
86 | spin_unlock(&boot_lock); | 81 | spin_unlock(&boot_lock); |
87 | } | 82 | } |
88 | 83 | ||
89 | int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) | 84 | static int __cpuinit exynos_boot_secondary(unsigned int cpu, struct task_struct *idle) |
90 | { | 85 | { |
91 | unsigned long timeout; | 86 | unsigned long timeout; |
92 | 87 | ||
@@ -139,7 +134,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) | |||
139 | 134 | ||
140 | __raw_writel(virt_to_phys(exynos4_secondary_startup), | 135 | __raw_writel(virt_to_phys(exynos4_secondary_startup), |
141 | CPU1_BOOT_REG); | 136 | CPU1_BOOT_REG); |
142 | gic_raise_softirq(cpumask_of(cpu), 1); | 137 | gic_raise_softirq(cpumask_of(cpu), 0); |
143 | 138 | ||
144 | if (pen_release == -1) | 139 | if (pen_release == -1) |
145 | break; | 140 | break; |
@@ -161,7 +156,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) | |||
161 | * which may be present or become present in the system. | 156 | * which may be present or become present in the system. |
162 | */ | 157 | */ |
163 | 158 | ||
164 | void __init smp_init_cpus(void) | 159 | static void __init exynos_smp_init_cpus(void) |
165 | { | 160 | { |
166 | void __iomem *scu_base = scu_base_addr(); | 161 | void __iomem *scu_base = scu_base_addr(); |
167 | unsigned int i, ncores; | 162 | unsigned int i, ncores; |
@@ -184,7 +179,7 @@ void __init smp_init_cpus(void) | |||
184 | set_smp_cross_call(gic_raise_softirq); | 179 | set_smp_cross_call(gic_raise_softirq); |
185 | } | 180 | } |
186 | 181 | ||
187 | void __init platform_smp_prepare_cpus(unsigned int max_cpus) | 182 | static void __init exynos_smp_prepare_cpus(unsigned int max_cpus) |
188 | { | 183 | { |
189 | if (!soc_is_exynos5250()) | 184 | if (!soc_is_exynos5250()) |
190 | scu_enable(scu_base_addr()); | 185 | scu_enable(scu_base_addr()); |
@@ -198,3 +193,13 @@ void __init platform_smp_prepare_cpus(unsigned int max_cpus) | |||
198 | __raw_writel(virt_to_phys(exynos4_secondary_startup), | 193 | __raw_writel(virt_to_phys(exynos4_secondary_startup), |
199 | CPU1_BOOT_REG); | 194 | CPU1_BOOT_REG); |
200 | } | 195 | } |
196 | |||
197 | struct smp_operations exynos_smp_ops __initdata = { | ||
198 | .smp_init_cpus = exynos_smp_init_cpus, | ||
199 | .smp_prepare_cpus = exynos_smp_prepare_cpus, | ||
200 | .smp_secondary_init = exynos_secondary_init, | ||
201 | .smp_boot_secondary = exynos_boot_secondary, | ||
202 | #ifdef CONFIG_HOTPLUG_CPU | ||
203 | .cpu_die = exynos_cpu_die, | ||
204 | #endif | ||
205 | }; | ||