Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic

Patches from David Howells <dhowells@redhat.com>:

This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.

Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.

* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
  UAPI: (Scripted) Disintegrate include/asm-generic
  UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
  c6x: remove c6x signal.h
  UAPI: Split compound conditionals containing __KERNEL__ in Arm64
  UAPI: Fix the guards on various asm/unistd.h files

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 42 insertions, 5 deletions

diff --git a/arch/arm/mach-shmobile/smp-emev2.c b/arch/arm/mach-shmobile/smp-emev2.c
index 6a35c4a31e6c..f978c5d0e1ae 100644
--- a/arch/arm/mach-shmobile/smp-emev2.c
+++ b/arch/arm/mach-shmobile/smp-emev2.c
@@ -50,7 +50,7 @@ static void modify_scu_cpu_psr(unsigned long set, unsigned long clr)
 
 }
 
-unsigned int __init emev2_get_core_count(void)
+static unsigned int __init emev2_get_core_count(void)
 {
 	if (!scu_base) {
 		scu_base = ioremap(EMEV2_SCU_BASE, PAGE_SIZE);
@@ -62,17 +62,35 @@ unsigned int __init emev2_get_core_count(void)
 	return scu_base ? scu_get_core_count(scu_base) : 1;
 }
 
-int emev2_platform_cpu_kill(unsigned int cpu)
+static int emev2_platform_cpu_kill(unsigned int cpu)
 {
 	return 0; /* not supported yet */
 }
 
-void __cpuinit emev2_secondary_init(unsigned int cpu)
+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 void __cpuinit emev2_secondary_init(unsigned int cpu)
 {
 	gic_secondary_init(0);
 }
 
-int __cpuinit emev2_boot_secondary(unsigned int cpu)
+static int __cpuinit emev2_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
 	cpu = cpu_logical_map(cpu);
 
@@ -86,7 +104,7 @@ int __cpuinit emev2_boot_secondary(unsigned int cpu)
 	return 0;
 }
 
-void __init emev2_smp_prepare_cpus(void)
+static void __init emev2_smp_prepare_cpus(unsigned int max_cpus)
 {
 	int cpu = cpu_logical_map(0);
 
@@ -95,3 +113,22 @@ void __init emev2_smp_prepare_cpus(void)
 	/* enable cache coherency on CPU0 */
 	modify_scu_cpu_psr(0, 3 << (cpu * 8));
 }
+
+static void __init emev2_smp_init_cpus(void)
+{
+	unsigned int ncores = emev2_get_core_count();
+
+	shmobile_smp_init_cpus(ncores);
+}
+
+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
+};