From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/sh/include/asm/pgtable-2level.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 arch/sh/include/asm/pgtable-2level.h (limited to 'arch/sh/include/asm/pgtable-2level.h') diff --git a/arch/sh/include/asm/pgtable-2level.h b/arch/sh/include/asm/pgtable-2level.h new file mode 100644 index 0000000000..08bff93927 --- /dev/null +++ b/arch/sh/include/asm/pgtable-2level.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_SH_PGTABLE_2LEVEL_H +#define __ASM_SH_PGTABLE_2LEVEL_H + +#include + +/* + * traditional two-level paging structure + */ +#define PAGETABLE_LEVELS 2 + +/* PTE bits */ +#define PTE_MAGNITUDE 2 /* 32-bit PTEs */ + +#define PTE_SHIFT PAGE_SHIFT +#define PTE_BITS (PTE_SHIFT - PTE_MAGNITUDE) + +/* PGD bits */ +#define PGDIR_SHIFT (PTE_SHIFT + PTE_BITS) + +#define PTRS_PER_PGD (PAGE_SIZE / (1 << PTE_MAGNITUDE)) +#define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE) + +#endif /* __ASM_SH_PGTABLE_2LEVEL_H */ -- cgit v1.2.3