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authorMauro Carvalho Chehab <mchehab@s-opensource.com>2017-11-27 08:02:30 -0500
committerMauro Carvalho Chehab <mchehab@s-opensource.com>2017-11-27 08:02:30 -0500
commit088fecfbb2c8a3890918fc614a7e1e1ccdd16c83 (patch)
treeed1f33b2488ba7b63b3ba7b1c33bd592f37c9eb0 /include/linux/cpu.h
parentmedia: rc: sir_ir: detect presence of port (diff)
parentLinux 4.15-rc1 (diff)
Merge tag 'v4.15-rc1' into patchwork
Linux 4.15-rc1 * tag 'v4.15-rc1': (12179 commits) Linux 4.15-rc1 ARM: BUG if jumping to usermode address in kernel mode m68k/macboing: Fix missed timer callback assignment afs: remove redundant assignment of dvnode to itself afs: cell: Remove unnecessary code in afs_lookup_cell afs: Fix signal handling in some file ops afs: Fix some dentry handling in dir ops and missing key_puts afs: Make afs_write_begin() avoid writing to a page that's being stored sched/debug: Fix task state recording/printout x86/decoder: Add new TEST instruction pattern x86/PCI: Remove unused HyperTransport interrupt support x86/umip: Fix insn_get_code_seg_params()'s return value x86/boot/KASLR: Remove unused variable genirq/matrix: Make - vs ?: Precedence explicit irqchip/imgpdc: Use resource_size function on resource object irqchip/qcom: Fix u32 comparison with value less than zero ipvlan: Fix insufficient skb linear check for ipv6 icmp ipvlan: Fix insufficient skb linear check for arp geneve: only configure or fill UDP_ZERO_CSUM6_RX/TX info when CONFIG_IPV6 net: dsa: bcm_sf2: Clear IDDQ_GLOBAL_PWR bit for PHY ...
Diffstat (limited to 'include/linux/cpu.h')
-rw-r--r--include/linux/cpu.h29
1 files changed, 10 insertions, 19 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index ca73bc1563f4..a04ef7c15c6a 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* include/linux/cpu.h - generic cpu definition
*
@@ -55,27 +56,17 @@ extern void unregister_cpu(struct cpu *cpu);
extern ssize_t arch_cpu_probe(const char *, size_t);
extern ssize_t arch_cpu_release(const char *, size_t);
#endif
-struct notifier_block;
-#define CPU_ONLINE 0x0002 /* CPU (unsigned)v is up */
-#define CPU_UP_PREPARE 0x0003 /* CPU (unsigned)v coming up */
-#define CPU_DEAD 0x0007 /* CPU (unsigned)v dead */
-#define CPU_POST_DEAD 0x0009 /* CPU (unsigned)v dead, cpu_hotplug
- * lock is dropped */
-#define CPU_BROKEN 0x000B /* CPU (unsigned)v did not die properly,
- * perhaps due to preemption. */
-
-/* Used for CPU hotplug events occurring while tasks are frozen due to a suspend
- * operation in progress
+/*
+ * These states are not related to the core CPU hotplug mechanism. They are
+ * used by various (sub)architectures to track internal state
*/
-#define CPU_TASKS_FROZEN 0x0010
-
-#define CPU_ONLINE_FROZEN (CPU_ONLINE | CPU_TASKS_FROZEN)
-#define CPU_UP_PREPARE_FROZEN (CPU_UP_PREPARE | CPU_TASKS_FROZEN)
-#define CPU_UP_CANCELED_FROZEN (CPU_UP_CANCELED | CPU_TASKS_FROZEN)
-#define CPU_DOWN_PREPARE_FROZEN (CPU_DOWN_PREPARE | CPU_TASKS_FROZEN)
-#define CPU_DOWN_FAILED_FROZEN (CPU_DOWN_FAILED | CPU_TASKS_FROZEN)
-#define CPU_DEAD_FROZEN (CPU_DEAD | CPU_TASKS_FROZEN)
+#define CPU_ONLINE 0x0002 /* CPU is up */
+#define CPU_UP_PREPARE 0x0003 /* CPU coming up */
+#define CPU_DEAD 0x0007 /* CPU dead */
+#define CPU_DEAD_FROZEN 0x0008 /* CPU timed out on unplug */
+#define CPU_POST_DEAD 0x0009 /* CPU successfully unplugged */
+#define CPU_BROKEN 0x000B /* CPU did not die properly */
#ifdef CONFIG_SMP
extern bool cpuhp_tasks_frozen;