#define EMEV2_SCU_BASE 0x1e000000
- static void __cpuinit emev2_secondary_init(unsigned int cpu)
-static DEFINE_SPINLOCK(scu_lock);
-static void __iomem *scu_base;
-
-static void modify_scu_cpu_psr(unsigned long set, unsigned long clr)
--{
- gic_secondary_init(0);
- unsigned long tmp;
-
- /* we assume this code is running on a different cpu
- * than the one that is changing coherency setting */
- spin_lock(&scu_lock);
- tmp = readl(scu_base + 8);
- tmp &= ~clr;
- tmp |= set;
- writel(tmp, scu_base + 8);
- spin_unlock(&scu_lock);
-
-}
-
-static unsigned int __init emev2_get_core_count(void)
-{
- if (!scu_base) {
- scu_base = ioremap(EMEV2_SCU_BASE, PAGE_SIZE);
- emev2_clock_init(); /* need ioremapped SMU */
- }
-
- WARN_ON_ONCE(!scu_base);
-
- return scu_base ? scu_get_core_count(scu_base) : 1;
-}
-
-static int emev2_platform_cpu_kill(unsigned int cpu)
-{
- return 0; /* not supported yet */
-}
-
-static int __maybe_unused emev2_cpu_kill(unsigned int cpu)
-{
- int k;
-
- /* this function is running on another CPU than the offline target,
- * here we need wait for shutdown code in platform_cpu_die() to
- * finish before asking SoC-specific code to power off the CPU core.
- */
- for (k = 0; k < 1000; k++) {
- if (shmobile_cpu_is_dead(cpu))
- return emev2_platform_cpu_kill(cpu);
- mdelay(1);
- }
-
- return 0;
--}
-
--
static int __cpuinit emev2_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
- cpu = cpu_logical_map(cpu);
-
- /* enable cache coherency */
- modify_scu_cpu_psr(0, 3 << (cpu * 8));
-
- /* Tell ROM loader about our vector (in headsmp.S) */
- emev2_set_boot_vector(__pa(shmobile_secondary_vector));
-
- arch_send_wakeup_ipi_mask(cpumask_of(cpu));
+ arch_send_wakeup_ipi_mask(cpumask_of(cpu_logical_map(cpu)));
return 0;
}
struct smp_operations emev2_smp_ops __initdata = {
.smp_init_cpus = emev2_smp_init_cpus,
.smp_prepare_cpus = emev2_smp_prepare_cpus,
- .smp_secondary_init = emev2_secondary_init,
.smp_boot_secondary = emev2_boot_secondary,
-#ifdef CONFIG_HOTPLUG_CPU
- .cpu_kill = emev2_cpu_kill,
- .cpu_die = shmobile_cpu_die,
- .cpu_disable = shmobile_cpu_disable,
-#endif
};
#include <linux/spinlock.h>
#include <linux/io.h>
#include <linux/delay.h>
- #include <linux/irqchip/arm-gic.h>
#include <mach/common.h>
#include <mach/r8a7779.h>
+#include <asm/cacheflush.h>
#include <asm/smp_plat.h>
#include <asm/smp_scu.h>
#include <asm/smp_twd.h>
return ret ? ret : 1;
}
- static void __cpuinit r8a7779_secondary_init(unsigned int cpu)
-static int __maybe_unused r8a7779_cpu_kill(unsigned int cpu)
--{
- gic_secondary_init(0);
- int k;
-
- /* this function is running on another CPU than the offline target,
- * here we need wait for shutdown code in platform_cpu_die() to
- * finish before asking SoC-specific code to power off the CPU core.
- */
- for (k = 0; k < 1000; k++) {
- if (shmobile_cpu_is_dead(cpu))
- return r8a7779_platform_cpu_kill(cpu);
-
- mdelay(1);
- }
-
- return 0;
--}
-
--
static int __cpuinit r8a7779_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
struct r8a7779_pm_ch *ch = NULL;
#include "common.h"
#include "iomap.h"
-extern void tegra_secondary_startup(void);
-
static cpumask_t tegra_cpu_init_mask;
-#define EVP_CPU_RESET_VECTOR \
- (IO_ADDRESS(TEGRA_EXCEPTION_VECTORS_BASE) + 0x100)
-
static void __cpuinit tegra_secondary_init(unsigned int cpu)
{
- /*
- * if any interrupts are already enabled for the primary
- * core (e.g. timer irq), then they will not have been enabled
- * for us: do so
- */
- gic_secondary_init(0);
-
cpumask_set_cpu(cpu, &tegra_cpu_init_mask);
}