From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/arm/include/asm/pgtable-nommu.h | 114 ++++++++++++++++++++++++++++ 1 file changed, 114 insertions(+) create mode 100644 kernel/arch/arm/include/asm/pgtable-nommu.h (limited to 'kernel/arch/arm/include/asm/pgtable-nommu.h') diff --git a/kernel/arch/arm/include/asm/pgtable-nommu.h b/kernel/arch/arm/include/asm/pgtable-nommu.h new file mode 100644 index 000000000..add094d09 --- /dev/null +++ b/kernel/arch/arm/include/asm/pgtable-nommu.h @@ -0,0 +1,114 @@ +/* + * arch/arm/include/asm/pgtable-nommu.h + * + * Copyright (C) 1995-2002 Russell King + * Copyright (C) 2004 Hyok S. Choi + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#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) +#define pmd_offset(a, b) ((void *)0) +/* 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) + +#define __swp_type(x) (0) +#define __swp_offset(x) (0) +#define __swp_entry(typ,off) ((swp_entry_t) { ((typ) | ((off) << 7)) }) +#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) +#define __swp_entry_to_pte(x) ((pte_t) { (x).val }) + + +typedef pte_t *pte_addr_t; + +/* + * ZERO_PAGE is a global shared page that is always zero: used + * for zero-mapped memory areas etc.. + */ +#define ZERO_PAGE(vaddr) (virt_to_page(0)) + +/* + * Mark the prot value as uncacheable and unbufferable. + */ +#define pgprot_noncached(prot) __pgprot(0) +#define pgprot_writecombine(prot) __pgprot(0) +#define pgprot_dmacoherent(prot) __pgprot(0) + + +/* + * These would be in other places but having them here reduces the diffs. + */ +extern unsigned int kobjsize(const void *objp); + +/* + * No page table caches to initialise. + */ +#define pgtable_cache_init() do { } while (0) + +/* + * 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 + +#include + +#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 1.2.3-korg