summaryrefslogtreecommitdiffstats
path: root/arch/arm64/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm64/kernel')
-rw-r--r--arch/arm64/kernel/Makefile2
-rw-r--r--arch/arm64/kernel/asm-offsets.c2
-rw-r--r--arch/arm64/kernel/cpuidle.c20
-rw-r--r--arch/arm64/kernel/hw_breakpoint.c2
-rw-r--r--arch/arm64/kernel/psci.c2
-rw-r--r--arch/arm64/kernel/suspend.c21
6 files changed, 23 insertions, 26 deletions
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 3b3b1cd3e7f0..bef04afd6031 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -27,7 +27,7 @@ arm64-obj-$(CONFIG_SMP) += smp.o smp_spin_table.o topology.o
arm64-obj-$(CONFIG_PERF_EVENTS) += perf_regs.o
arm64-obj-$(CONFIG_HW_PERF_EVENTS) += perf_event.o
arm64-obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
-arm64-obj-$(CONFIG_ARM64_CPU_SUSPEND) += sleep.o suspend.o
+arm64-obj-$(CONFIG_CPU_PM) += sleep.o suspend.o
arm64-obj-$(CONFIG_CPU_IDLE) += cpuidle.o
arm64-obj-$(CONFIG_JUMP_LABEL) += jump_label.o
arm64-obj-$(CONFIG_KGDB) += kgdb.o
diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c
index 9a9fce090d58..a2ae19403abb 100644
--- a/arch/arm64/kernel/asm-offsets.c
+++ b/arch/arm64/kernel/asm-offsets.c
@@ -152,7 +152,7 @@ int main(void)
DEFINE(KVM_VTTBR, offsetof(struct kvm, arch.vttbr));
DEFINE(KVM_VGIC_VCTRL, offsetof(struct kvm, arch.vgic.vctrl_base));
#endif
-#ifdef CONFIG_ARM64_CPU_SUSPEND
+#ifdef CONFIG_CPU_PM
DEFINE(CPU_SUSPEND_SZ, sizeof(struct cpu_suspend_ctx));
DEFINE(CPU_CTX_SP, offsetof(struct cpu_suspend_ctx, sp));
DEFINE(MPIDR_HASH_MASK, offsetof(struct mpidr_hash, mask));
diff --git a/arch/arm64/kernel/cpuidle.c b/arch/arm64/kernel/cpuidle.c
index 19d17f51db37..5c0896647fd1 100644
--- a/arch/arm64/kernel/cpuidle.c
+++ b/arch/arm64/kernel/cpuidle.c
@@ -29,3 +29,23 @@ int cpu_init_idle(unsigned int cpu)
of_node_put(cpu_node);
return ret;
}
+
+/**
+ * cpu_suspend() - function to enter a low-power idle state
+ * @arg: argument to pass to CPU suspend operations
+ *
+ * Return: 0 on success, -EOPNOTSUPP if CPU suspend hook not initialized, CPU
+ * operations back-end error code otherwise.
+ */
+int cpu_suspend(unsigned long arg)
+{
+ int cpu = smp_processor_id();
+
+ /*
+ * If cpu_ops have not been registered or suspend
+ * has not been initialized, cpu_suspend call fails early.
+ */
+ if (!cpu_ops[cpu] || !cpu_ops[cpu]->cpu_suspend)
+ return -EOPNOTSUPP;
+ return cpu_ops[cpu]->cpu_suspend(arg);
+}
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index df1cf15377b4..98bbe06e469c 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -894,7 +894,7 @@ static struct notifier_block hw_breakpoint_reset_nb = {
.notifier_call = hw_breakpoint_reset_notify,
};
-#ifdef CONFIG_ARM64_CPU_SUSPEND
+#ifdef CONFIG_CPU_PM
extern void cpu_suspend_set_dbg_restorer(void (*hw_bp_restore)(void *));
#else
static inline void cpu_suspend_set_dbg_restorer(void (*hw_bp_restore)(void *))
diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index f1dbca7d5c96..3425f311c49e 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -540,8 +540,6 @@ const struct cpu_operations cpu_psci_ops = {
.name = "psci",
#ifdef CONFIG_CPU_IDLE
.cpu_init_idle = cpu_psci_cpu_init_idle,
-#endif
-#ifdef CONFIG_ARM64_CPU_SUSPEND
.cpu_suspend = cpu_psci_cpu_suspend,
#endif
#ifdef CONFIG_SMP
diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c
index 2d6b6065fe7f..d7daf45ae7a2 100644
--- a/arch/arm64/kernel/suspend.c
+++ b/arch/arm64/kernel/suspend.c
@@ -1,7 +1,6 @@
#include <linux/percpu.h>
#include <linux/slab.h>
#include <asm/cacheflush.h>
-#include <asm/cpu_ops.h>
#include <asm/debug-monitors.h>
#include <asm/pgtable.h>
#include <asm/memory.h>
@@ -51,26 +50,6 @@ void __init cpu_suspend_set_dbg_restorer(void (*hw_bp_restore)(void *))
hw_breakpoint_restore = hw_bp_restore;
}
-/**
- * cpu_suspend() - function to enter a low-power state
- * @arg: argument to pass to CPU suspend operations
- *
- * Return: 0 on success, -EOPNOTSUPP if CPU suspend hook not initialized, CPU
- * operations back-end error code otherwise.
- */
-int cpu_suspend(unsigned long arg)
-{
- int cpu = smp_processor_id();
-
- /*
- * If cpu_ops have not been registered or suspend
- * has not been initialized, cpu_suspend call fails early.
- */
- if (!cpu_ops[cpu] || !cpu_ops[cpu]->cpu_suspend)
- return -EOPNOTSUPP;
- return cpu_ops[cpu]->cpu_suspend(arg);
-}
-
/*
* __cpu_suspend
*