Na}{

File Content: `page.h`

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
 */
#ifndef __ASM_ARC_PAGE_H
#define __ASM_ARC_PAGE_H

#include <uapi/asm/page.h>

#ifdef CONFIG_ARC_HAS_PAE40

#define MAX_POSSIBLE_PHYSMEM_BITS	40
#define PAGE_MASK_PHYS			(0xff00000000ull | PAGE_MASK)

#else /* CONFIG_ARC_HAS_PAE40 */

#define MAX_POSSIBLE_PHYSMEM_BITS	32
#define PAGE_MASK_PHYS			PAGE_MASK

#endif /* CONFIG_ARC_HAS_PAE40 */

#ifndef __ASSEMBLY__

#define clear_page(paddr)		memset((paddr), 0, PAGE_SIZE)
#define copy_user_page(to, from, vaddr, pg)	copy_page(to, from)
#define copy_page(to, from)		memcpy((to), (from), PAGE_SIZE)

struct vm_area_struct;
struct page;

#define __HAVE_ARCH_COPY_USER_HIGHPAGE

void copy_user_highpage(struct page *to, struct page *from,
			unsigned long u_vaddr, struct vm_area_struct *vma);
void clear_user_page(void *to, unsigned long u_vaddr, struct page *page);

#undef STRICT_MM_TYPECHECKS

#ifdef STRICT_MM_TYPECHECKS
/*
 * These are used to make use of C type-checking..
 */
typedef struct {
#ifdef CONFIG_ARC_HAS_PAE40
	unsigned long long pte;
#else
	unsigned long pte;
#endif
} pte_t;
typedef struct {
	unsigned long pgd;
} pgd_t;
typedef struct {
	unsigned long pgprot;
} pgprot_t;

#define pte_val(x)      ((x).pte)
#define pgd_val(x)      ((x).pgd)
#define pgprot_val(x)   ((x).pgprot)

#define __pte(x)        ((pte_t) { (x) })
#define __pgd(x)        ((pgd_t) { (x) })
#define __pgprot(x)     ((pgprot_t) { (x) })

#define pte_pgprot(x) __pgprot(pte_val(x))

#else /* !STRICT_MM_TYPECHECKS */

#ifdef CONFIG_ARC_HAS_PAE40
typedef unsigned long long pte_t;
#else
typedef unsigned long pte_t;
#endif
typedef unsigned long pgd_t;
typedef unsigned long pgprot_t;

#define pte_val(x)	(x)
#define pgd_val(x)	(x)
#define pgprot_val(x)	(x)
#define __pte(x)	(x)
#define __pgd(x)	(x)
#define __pgprot(x)	(x)
#define pte_pgprot(x)	(x)

#endif

typedef pte_t * pgtable_t;

/*
 * Use virt_to_pfn with caution:
 * If used in pte or paddr related macros, it could cause truncation
 * in PAE40 builds
 * As a rule of thumb, only use it in helpers starting with virt_
 * You have been warned !
 */
#define virt_to_pfn(kaddr)	(__pa(kaddr) >> PAGE_SHIFT)

#define ARCH_PFN_OFFSET		virt_to_pfn(CONFIG_LINUX_RAM_BASE)

#ifdef CONFIG_FLATMEM
#define pfn_valid(pfn)		(((pfn) - ARCH_PFN_OFFSET) < max_mapnr)
#endif

/*
 * __pa, __va, virt_to_page (ALERT: deprecated, don't use them)
 *
 * These macros have historically been misnamed
 * virt here means link-address/program-address as embedded in object code.
 * And for ARC, link-addr = physical address
 */
#define __pa(vaddr)  ((unsigned long)(vaddr))
#define __va(paddr)  ((void *)((unsigned long)(paddr)))

#define virt_to_page(kaddr)	pfn_to_page(virt_to_pfn(kaddr))
#define virt_addr_valid(kaddr)  pfn_valid(virt_to_pfn(kaddr))

/* Default Permissions for stack/heaps pages (Non Executable) */
#define VM_DATA_DEFAULT_FLAGS   (VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)

#define WANT_PAGE_VIRTUAL   1

#include <asm-generic/memory_model.h>   /* page_to_pfn, pfn_to_page */
#include <asm-generic/getorder.h>

#endif /* !__ASSEMBLY__ */

#endif

Name	Size	Permission
Kbuild	691 bytes	0644
arcregs.h	8640 bytes	0644
asm-offsets.h	165 bytes	0644
atomic.h	13443 bytes	0644
barrier.h	1651 bytes	0644
bitops.h	9910 bytes	0644
bug.h	792 bytes	0644
cache.h	3717 bytes	0644
cacheflush.h	3824 bytes	0644
checksum.h	2367 bytes	0644
cmpxchg.h	5388 bytes	0644
current.h	549 bytes	0644
delay.h	1896 bytes	0644
disasm.h	3813 bytes	0644
dma.h	313 bytes	0644
dwarf.h	746 bytes	0644
elf.h	1935 bytes	0644
entry-arcv2.h	7214 bytes	0644
entry-compact.h	9476 bytes	0644
entry.h	6687 bytes	0644
exec.h	264 bytes	0644
fb.h	411 bytes	0644
futex.h	3598 bytes	0644
highmem.h	1344 bytes	0644
hugepage.h	2445 bytes	0644
io.h	6434 bytes	0644
irq.h	679 bytes	0644
irqflags-arcv2.h	3491 bytes	0644
irqflags-compact.h	4203 bytes	0644
irqflags.h	363 bytes	0644
kdebug.h	254 bytes	0644
kgdb.h	1239 bytes	0644
kmap_types.h	340 bytes	0644
kprobes.h	1184 bytes	0644
linkage.h	1476 bytes	0644
mach_desc.h	1941 bytes	0644
mmu.h	2356 bytes	0644
mmu_context.h	5664 bytes	0644
mmzone.h	843 bytes	0644
module.h	515 bytes	0644
page.h	3183 bytes	0644
pci.h	360 bytes	0644
perf_event.h	6875 bytes	0644
pgalloc.h	3645 bytes	0644
pgtable.h	14090 bytes	0644
processor.h	4364 bytes	0644
ptrace.h	3815 bytes	0644
sections.h	261 bytes	0644
segment.h	466 bytes	0644
serial.h	498 bytes	0644
setup.h	1065 bytes	0644
shmparam.h	296 bytes	0644
smp.h	4201 bytes	0644
spinlock.h	8693 bytes	0644
spinlock_types.h	905 bytes	0644
stacktrace.h	1178 bytes	0644
string.h	1036 bytes	0644
switch_to.h	1055 bytes	0644
syscall.h	1738 bytes	0644
syscalls.h	547 bytes	0644
thread_info.h	3207 bytes	0644
timex.h	362 bytes	0644
tlb-mmu1.h	3416 bytes	0644
tlb.h	262 bytes	0644
tlbflush.h	1654 bytes	0644
uaccess.h	18776 bytes	0644
unaligned.h	625 bytes	0644
unwind.h	3446 bytes	0644

File Content: page.h

File Content: `page.h`