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[src/trunk]: src/sys/arch/riscv/include Comments from zmcgrew@
details: https://anonhg.NetBSD.org/src/rev/33a726580b52
branches: trunk
changeset: 941933:33a726580b52
user: skrll <skrll%NetBSD.org@localhost>
date: Sun Nov 01 19:47:46 2020 +0000
description:
Comments from zmcgrew@
diffstat:
sys/arch/riscv/include/pte.h | 19 ++++++++++---------
1 files changed, 10 insertions(+), 9 deletions(-)
diffs (33 lines):
diff -r 43984142f796 -r 33a726580b52 sys/arch/riscv/include/pte.h
--- a/sys/arch/riscv/include/pte.h Sun Nov 01 19:25:23 2020 +0000
+++ b/sys/arch/riscv/include/pte.h Sun Nov 01 19:47:46 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: pte.h,v 1.4 2020/03/14 16:12:16 skrll Exp $ */
+/* $NetBSD: pte.h,v 1.5 2020/11/01 19:47:46 skrll Exp $ */
/*
* Copyright (c) 2014, 2019 The NetBSD Foundation, Inc.
@@ -59,14 +59,15 @@
#define PTE_WIRED __BIT(8)
/* Hardware PTE bits. */
-#define PTE_D __BIT(7)
-#define PTE_A __BIT(6)
-#define PTE_G __BIT(5)
-#define PTE_U __BIT(4)
-#define PTE_X __BIT(3)
-#define PTE_W __BIT(2)
-#define PTE_R __BIT(1)
-#define PTE_V __BIT(0)
+// These are hardware defined bits
+#define PTE_D __BIT(7) // Dirty
+#define PTE_A __BIT(6) // Accessed
+#define PTE_G __BIT(5) // Global
+#define PTE_U __BIT(4) // User
+#define PTE_X __BIT(3) // eXecute
+#define PTE_W __BIT(2) // Write
+#define PTE_R __BIT(1) // Read
+#define PTE_V __BIT(0) // Valid
#define PA_TO_PTE(pa) (((pa) >> PAGE_SHIFT) << PTE_PPN_SHIFT)
#define PTE_TO_PA(pte) (((pte) >> PTE_PPN_SHIFT) << PAGE_SHIFT)
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