Module Name: src Committed By: skrll Date: Sun Nov 1 19:47:46 UTC 2020
Modified Files: src/sys/arch/riscv/include: pte.h Log Message: Comments from zmcgrew@ To generate a diff of this commit: cvs rdiff -u -r1.4 -r1.5 src/sys/arch/riscv/include/pte.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/riscv/include/pte.h diff -u src/sys/arch/riscv/include/pte.h:1.4 src/sys/arch/riscv/include/pte.h:1.5 --- src/sys/arch/riscv/include/pte.h:1.4 Sat Mar 14 16:12:16 2020 +++ src/sys/arch/riscv/include/pte.h Sun Nov 1 19:47:46 2020 @@ -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 @@ typedef __uint32_t pd_entry_t; #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)