Commit 6df3e144 authored by David Brazdil's avatar David Brazdil Committed by Marc Zyngier
Browse files

psci: Add accessor for psci_0_1_function_ids 



Make it possible to retrieve a copy of the psci_0_1_function_ids struct.
This is useful for KVM if it is configured to intercept host's PSCI SMCs.

Signed-off-by: default avatarDavid Brazdil <dbrazdil@google.com>
Signed-off-by: default avatarMarc Zyngier <maz@kernel.org>
Acked-by: default avatarMark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20201202184122.26046-7-dbrazdil@google.com
parent 82ac62d1

drivers/firmware/psci/psci.c

+5 −7
Original line number Diff line number Diff line
@@ -58,15 +58,13 @@ typedef unsigned long (psci_fn)(unsigned long, unsigned long, 
				unsigned long, unsigned long);

static psci_fn *invoke_psci_fn;



struct psci_0_1_function_ids {

	u32 cpu_suspend;

	u32 cpu_on;

	u32 cpu_off;

	u32 migrate;

};



static struct psci_0_1_function_ids psci_0_1_function_ids;



struct psci_0_1_function_ids get_psci_0_1_function_ids(void)

{

	return psci_0_1_function_ids;

}



#define PSCI_0_2_POWER_STATE_MASK		\

				(PSCI_0_2_POWER_STATE_ID_MASK | \

				PSCI_0_2_POWER_STATE_TYPE_MASK | \

include/linux/psci.h

+9 −0
Original line number Diff line number Diff line
@@ -34,6 +34,15 @@ struct psci_operations { 


extern struct psci_operations psci_ops;



struct psci_0_1_function_ids {

	u32 cpu_suspend;

	u32 cpu_on;

	u32 cpu_off;

	u32 migrate;

};



struct psci_0_1_function_ids get_psci_0_1_function_ids(void);



#if defined(CONFIG_ARM_PSCI_FW)

int __init psci_dt_init(void);

#else