Commit 1609626c authored by Sudeep Holla's avatar Sudeep Holla
Browse files

firmware: arm_ffa: Update the FF-A command list with v1.1 additions 

Arm Firmware Framework for A-profile(FFA) v1.1 introduces notifications
and indirect messaging based upon notifications support and extends some
of the memory interfaces.

Let us add all the newly supported FF-A function IDs in the spec.
Also update to the error values and associated handling.

Link: https://lore.kernel.org/r/20231005-ffa_v1-1_notif-v4-1-cddd3237809c@arm.com


Signed-off-by: default avatarSudeep Holla <sudeep.holla@arm.com>
parent 22779149

drivers/firmware/arm_ffa/driver.c

+1 −0
Original line number Diff line number Diff line
@@ -64,6 +64,7 @@ static const int ffa_linux_errmap[] = { 
	-EACCES,	/* FFA_RET_DENIED */

	-EAGAIN,	/* FFA_RET_RETRY */

	-ECANCELED,	/* FFA_RET_ABORTED */

	-ENODATA,	/* FFA_RET_NO_DATA */

};



static inline int ffa_to_linux_errno(int errno)

include/linux/arm_ffa.h

+20 −0
Original line number Diff line number Diff line
@@ -20,6 +20,7 @@ 


#define FFA_ERROR			FFA_SMC_32(0x60)

#define FFA_SUCCESS			FFA_SMC_32(0x61)

#define FFA_FN64_SUCCESS		FFA_SMC_64(0x61)

#define FFA_INTERRUPT			FFA_SMC_32(0x62)

#define FFA_VERSION			FFA_SMC_32(0x63)

#define FFA_FEATURES			FFA_SMC_32(0x64)
@@ -54,6 +55,23 @@ 
#define FFA_MEM_FRAG_RX			FFA_SMC_32(0x7A)

#define FFA_MEM_FRAG_TX			FFA_SMC_32(0x7B)

#define FFA_NORMAL_WORLD_RESUME		FFA_SMC_32(0x7C)

#define FFA_NOTIFICATION_BITMAP_CREATE	FFA_SMC_32(0x7D)

#define FFA_NOTIFICATION_BITMAP_DESTROY FFA_SMC_32(0x7E)

#define FFA_NOTIFICATION_BIND		FFA_SMC_32(0x7F)

#define FFA_NOTIFICATION_UNBIND		FFA_SMC_32(0x80)

#define FFA_NOTIFICATION_SET		FFA_SMC_32(0x81)

#define FFA_NOTIFICATION_GET		FFA_SMC_32(0x82)

#define FFA_NOTIFICATION_INFO_GET	FFA_SMC_32(0x83)

#define FFA_FN64_NOTIFICATION_INFO_GET	FFA_SMC_64(0x83)

#define FFA_RX_ACQUIRE			FFA_SMC_32(0x84)

#define FFA_SPM_ID_GET			FFA_SMC_32(0x85)

#define FFA_MSG_SEND2			FFA_SMC_32(0x86)

#define FFA_SECONDARY_EP_REGISTER	FFA_SMC_32(0x87)

#define FFA_FN64_SECONDARY_EP_REGISTER	FFA_SMC_64(0x87)

#define FFA_MEM_PERM_GET		FFA_SMC_32(0x88)

#define FFA_FN64_MEM_PERM_GET		FFA_SMC_64(0x88)

#define FFA_MEM_PERM_SET		FFA_SMC_32(0x89)

#define FFA_FN64_MEM_PERM_SET		FFA_SMC_64(0x89)



/*

 * For some calls it is necessary to use SMC64 to pass or return 64-bit values.
@@ -76,6 +94,7 @@ 
#define FFA_RET_DENIED             (-6)

#define FFA_RET_RETRY              (-7)

#define FFA_RET_ABORTED            (-8)

#define FFA_RET_NO_DATA            (-9)



/* FFA version encoding */

#define FFA_MAJOR_VERSION_MASK	GENMASK(30, 16)
@@ -86,6 +105,7 @@ 
	(FIELD_PREP(FFA_MAJOR_VERSION_MASK, (major)) |		\

	 FIELD_PREP(FFA_MINOR_VERSION_MASK, (minor)))

#define FFA_VERSION_1_0		FFA_PACK_VERSION_INFO(1, 0)

#define FFA_VERSION_1_1		FFA_PACK_VERSION_INFO(1, 1)



/**

 * FF-A specification mentions explicitly about '4K pages'. This should