Module Name: src
Committed By: jmcneill
Date: Sat Aug 7 21:20:14 UTC 2021
Modified Files:
src/sys/arch/arm/arm: psci.c psci.h
Log Message:
arm: PSCI: Add a function to return the PSCI conduit.
To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/arm/arm/psci.c
cvs rdiff -u -r1.3 -r1.4 src/sys/arch/arm/arm/psci.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/arm/arm/psci.c
diff -u src/sys/arch/arm/arm/psci.c:1.6 src/sys/arch/arm/arm/psci.c:1.7
--- src/sys/arch/arm/arm/psci.c:1.6 Fri Aug 6 19:38:53 2021
+++ src/sys/arch/arm/arm/psci.c Sat Aug 7 21:20:14 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: psci.c,v 1.6 2021/08/06 19:38:53 jmcneill Exp $ */
+/* $NetBSD: psci.c,v 1.7 2021/08/07 21:20:14 jmcneill Exp $ */
/*-
* Copyright (c) 2017 Jared McNeill <[email protected]>
@@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: psci.c,v 1.6 2021/08/06 19:38:53 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: psci.c,v 1.7 2021/08/07 21:20:14 jmcneill Exp $");
#include <sys/param.h>
#include <sys/bus.h>
@@ -68,6 +68,18 @@ psci_call(register_t fid, register_t arg
return psci_call_fn(fid, arg1, arg2, arg3);
}
+enum psci_conduit
+psci_conduit(void)
+{
+ if (psci_call_fn == psci_call_smc) {
+ return PSCI_CONDUIT_SMC;
+ } else if (psci_call_fn == psci_call_hvc) {
+ return PSCI_CONDUIT_HVC;
+ } else {
+ return PSCI_CONDUIT_NONE;
+ }
+}
+
uint32_t
psci_version(void)
{
Index: src/sys/arch/arm/arm/psci.h
diff -u src/sys/arch/arm/arm/psci.h:1.3 src/sys/arch/arm/arm/psci.h:1.4
--- src/sys/arch/arm/arm/psci.h:1.3 Fri Aug 6 19:38:53 2021
+++ src/sys/arch/arm/arm/psci.h Sat Aug 7 21:20:14 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: psci.h,v 1.3 2021/08/06 19:38:53 jmcneill Exp $ */
+/* $NetBSD: psci.h,v 1.4 2021/08/07 21:20:14 jmcneill Exp $ */
/*-
* Copyright (c) 2017 Jared McNeill <[email protected]>
@@ -42,6 +42,15 @@ enum psci_function {
};
/*
+ * Possible PSCI conduits.
+ */
+enum psci_conduit {
+ PSCI_CONDUIT_NONE,
+ PSCI_CONDUIT_SMC,
+ PSCI_CONDUIT_HVC,
+};
+
+/*
* PSCI error codes
*/
#define PSCI_SUCCESS 0
@@ -71,6 +80,11 @@ void psci_init(psci_fn);
bool psci_available(void);
/*
+ * Return the PSCI conduit type.
+ */
+enum psci_conduit psci_conduit(void);
+
+/*
* PSCI call methods, implemented in psci.S
*/
int psci_call_smc(register_t, register_t, register_t, register_t);
