summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-keystone/smc.S
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /arch/arm/mach-keystone/smc.S
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-keystone/smc.S')
-rw-r--r--arch/arm/mach-keystone/smc.S26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm/mach-keystone/smc.S b/arch/arm/mach-keystone/smc.S
new file mode 100644
index 000000000..21ef75cf5
--- /dev/null
+++ b/arch/arm/mach-keystone/smc.S
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Keystone Secure APIs
+ *
+ * Copyright (C) 2013 Texas Instruments, Inc.
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ */
+
+#include <linux/linkage.h>
+
+/**
+ * u32 keystone_cpu_smc(u32 command, u32 cpu, u32 addr)
+ *
+ * Low level CPU monitor API
+ * @command: Monitor command.
+ * @cpu: CPU Number
+ * @addr: Kernel jump address for boot CPU
+ *
+ * Return: Non zero value on failure
+ */
+ .arch_extension sec
+ENTRY(keystone_cpu_smc)
+ stmfd sp!, {r4-r11, lr}
+ smc #0
+ ldmfd sp!, {r4-r11, pc}
+ENDPROC(keystone_cpu_smc)