From 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 12:05:51 +0200 Subject: Adding upstream version 5.10.209. Signed-off-by: Daniel Baumann --- arch/arm/include/asm/pgtable-nommu.h | 91 ++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 arch/arm/include/asm/pgtable-nommu.h (limited to 'arch/arm/include/asm/pgtable-nommu.h') diff --git a/arch/arm/include/asm/pgtable-nommu.h b/arch/arm/include/asm/pgtable-nommu.h new file mode 100644 index 000000000..090011394 --- /dev/null +++ b/arch/arm/include/asm/pgtable-nommu.h @@ -0,0 +1,91 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * arch/arm/include/asm/pgtable-nommu.h + * + * Copyright (C) 1995-2002 Russell King + * Copyright (C) 2004 Hyok S. Choi + */ +#ifndef _ASMARM_PGTABLE_NOMMU_H +#define _ASMARM_PGTABLE_NOMMU_H + +#ifndef __ASSEMBLY__ + +#include +#include +#include + +/* + * Trivial page table functions. + */ +#define pgd_present(pgd) (1) +#define pgd_none(pgd) (0) +#define pgd_bad(pgd) (0) +#define pgd_clear(pgdp) +#define kern_addr_valid(addr) (1) +/* FIXME */ +/* + * PMD_SHIFT determines the size of the area a second-level page table can map + * PGDIR_SHIFT determines what a third-level page table entry can map + */ +#define PGDIR_SHIFT 21 + +#define PGDIR_SIZE (1UL << PGDIR_SHIFT) +#define PGDIR_MASK (~(PGDIR_SIZE-1)) +/* FIXME */ + +#define PAGE_NONE __pgprot(0) +#define PAGE_SHARED __pgprot(0) +#define PAGE_COPY __pgprot(0) +#define PAGE_READONLY __pgprot(0) +#define PAGE_KERNEL __pgprot(0) + +#define swapper_pg_dir ((pgd_t *) 0) + + +typedef pte_t *pte_addr_t; + +/* + * Mark the prot value as uncacheable and unbufferable. + */ +#define pgprot_noncached(prot) (prot) +#define pgprot_writecombine(prot) (prot) +#define pgprot_device(prot) (prot) + + +/* + * These would be in other places but having them here reduces the diffs. + */ +extern unsigned int kobjsize(const void *objp); + +/* + * All 32bit addresses are effectively valid for vmalloc... + * Sort of meaningless for non-VM targets. + */ +#define VMALLOC_START 0UL +#define VMALLOC_END 0xffffffffUL + +#define FIRST_USER_ADDRESS 0UL + +#else + +/* + * dummy tlb and user structures. + */ +#define v3_tlb_fns (0) +#define v4_tlb_fns (0) +#define v4wb_tlb_fns (0) +#define v4wbi_tlb_fns (0) +#define v6wbi_tlb_fns (0) +#define v7wbi_tlb_fns (0) + +#define v3_user_fns (0) +#define v4_user_fns (0) +#define v4_mc_user_fns (0) +#define v4wb_user_fns (0) +#define v4wt_user_fns (0) +#define v6_user_fns (0) +#define xscale_mc_user_fns (0) + +#endif /*__ASSEMBLY__*/ + +#endif /* _ASMARM_PGTABLE_H */ -- cgit v1.2.3