git: 5e7941b6c979 - main - arm64: Add CurrentEL register definitions

From: Andrew Turner <andrew_at_FreeBSD.org>
Date: Wed, 21 Feb 2024 11:27:49 UTC
The branch main has been updated by andrew:

URL: https://cgit.FreeBSD.org/src/commit/?id=5e7941b6c979a55dc67baf316db6932c09b14022

commit 5e7941b6c979a55dc67baf316db6932c09b14022
Author:     Andrew Turner <andrew@FreeBSD.org>
AuthorDate: 2024-02-19 14:57:34 +0000
Commit:     Andrew Turner <andrew@FreeBSD.org>
CommitDate: 2024-02-21 11:00:19 +0000

    arm64: Add CurrentEL register definitions
    
    Sponsored by:   Arm Ltd
    Differential Revision:  https://reviews.freebsd.org/D43971
---
 sys/arm64/include/armreg.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sys/arm64/include/armreg.h b/sys/arm64/include/armreg.h
index c43ec1f5b97c..0ff42de90f46 100644
--- a/sys/arm64/include/armreg.h
+++ b/sys/arm64/include/armreg.h
@@ -190,6 +190,14 @@
 #define	CTR_ILINE_VAL(reg)	((reg) & CTR_ILINE_MASK)
 #define	CTR_ILINE_SIZE(reg)	(4 << (CTR_ILINE_VAL(reg) >> CTR_ILINE_SHIFT))
 
+/* CurrentEL - Current Exception Level */
+#define	CURRENTEL_EL_SHIFT	2
+#define	CURRENTEL_EL_MASK	(0x3 << CURRENTEL_EL_SHIFT)
+#define	 CURRENTEL_EL_EL0	(0x0 << CURRENTEL_EL_SHIFT)
+#define	 CURRENTEL_EL_EL1	(0x1 << CURRENTEL_EL_SHIFT)
+#define	 CURRENTEL_EL_EL2	(0x2 << CURRENTEL_EL_SHIFT)
+#define	 CURRENTEL_EL_EL3	(0x3 << CURRENTEL_EL_SHIFT)
+
 /* DAIFSet/DAIFClear */
 #define	DAIF_D			(1 << 3)
 #define	DAIF_A			(1 << 2)