diff mbox series

[RFC,03/26] psci: Export psci_cpu_suspend_feature

Message ID 20201104183630.27513-4-dbrazdil@google.com (mailing list archive)
State New, archived
Headers show
Series [RFC,01/26] psci: Export configured PSCI version | expand

Commit Message

David Brazdil Nov. 4, 2020, 6:36 p.m. UTC 
KVM's PSCI proxy could probe the firmware to establish features
supported for CPU_SUSPEND, but since the kernel's PSCI driver already
does that, and other information about the driver is already exported,
export the value of psci_cpu_suspend_feature as well for convenience.

Signed-off-by: David Brazdil <dbrazdil@google.com>
---
 drivers/firmware/psci/psci.c | 2 +-
 include/linux/psci.h         | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
index ffcb88f60e21..b6ad237b1518 100644
--- a/drivers/firmware/psci/psci.c
+++ b/drivers/firmware/psci/psci.c
@@ -71,7 +71,7 @@  u32 psci_function_id[PSCI_FN_MAX];
 				(PSCI_1_0_EXT_POWER_STATE_ID_MASK | \
 				PSCI_1_0_EXT_POWER_STATE_TYPE_MASK)
 
-static u32 psci_cpu_suspend_feature;
+u32 psci_cpu_suspend_feature;
 static bool psci_system_reset2_supported;
 
 static inline bool psci_has_ext_power_state(void)
diff --git a/include/linux/psci.h b/include/linux/psci.h
index 877d844ee6d9..a5832d91d493 100644
--- a/include/linux/psci.h
+++ b/include/linux/psci.h
@@ -29,6 +29,8 @@  bool psci_has_osi_support(void);
  */
 extern int psci_driver_version;
 
+extern u32 psci_cpu_suspend_feature;
+
 enum psci_function {
 	PSCI_FN_CPU_SUSPEND,
 	PSCI_FN_CPU_ON,