firmware: arm_ffa: Update the FF-A command list with v1.2 additions

Arm Firmware Framework for A-profile(FFA) v1.2 introduces register based
discovery mechanism and direct messaging extensions that enables to target
specific UUID within a partition.

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

Message-Id: <20240820-ffa_v1-2-v2-2-18c0c5f3c65e@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

drivers/firmware/arm_ffa/driver.c

@@ -75,6 +75,7 @@ static const int ffa_linux_errmap[] = {
 	-EAGAIN,	/* FFA_RET_RETRY */
 	-ECANCELED,	/* FFA_RET_ABORTED */
 	-ENODATA,	/* FFA_RET_NO_DATA */
+	-EAGAIN,	/* FFA_RET_NOT_READY */
 };
 
 static inline int ffa_to_linux_errno(int errno)

include/linux/arm_ffa.h

@@ -73,6 +73,11 @@
 #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)
+#define FFA_CONSOLE_LOG			FFA_SMC_32(0x8A)
+#define FFA_PARTITION_INFO_GET_REGS	FFA_SMC_64(0x8B)
+#define FFA_EL3_INTR_HANDLE		FFA_SMC_32(0x8C)
+#define FFA_MSG_SEND_DIRECT_REQ2	FFA_SMC_64(0x8D)
+#define FFA_MSG_SEND_DIRECT_RESP2	FFA_SMC_64(0x8E)
 
 /*
  * For some calls it is necessary to use SMC64 to pass or return 64-bit values.