64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _ASM_SW64_PAGE_H
|
|
#define _ASM_SW64_PAGE_H
|
|
|
|
#include <linux/const.h>
|
|
#include <asm/hmcall.h>
|
|
|
|
/* PAGE_SHIFT determines the page size */
|
|
#define PAGE_SHIFT 13
|
|
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
|
|
#define PAGE_MASK (~(PAGE_SIZE - 1))
|
|
|
|
#define HPAGE_SHIFT PMD_SHIFT
|
|
#define HPAGE_SIZE (_AC(1, UL) << HPAGE_SHIFT)
|
|
#define HPAGE_MASK (~(HPAGE_SIZE - 1))
|
|
#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT)
|
|
|
|
#define HUGE_MAX_HSTATE 2
|
|
|
|
#ifdef __KERNEL__
|
|
#ifndef __ASSEMBLY__
|
|
|
|
extern void clear_page(void *page);
|
|
#define clear_user_page(page, vaddr, pg) clear_page(page)
|
|
|
|
#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
|
|
alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
|
|
#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
|
|
|
|
extern void copy_page(void *_to, void *_from);
|
|
#define copy_user_page(to, from, vaddr, pg) copy_page(to, from)
|
|
|
|
typedef struct page *pgtable_t;
|
|
|
|
extern unsigned long __phys_addr(unsigned long);
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
#define KERNEL_IMAGE_SIZE (512 * 1024 * 1024)
|
|
|
|
#include <asm/pgtable-4level.h>
|
|
|
|
#if defined(CONFIG_SW64_LEGACY_KTEXT_ADDRESS)
|
|
#define __START_KERNEL_map PAGE_OFFSET
|
|
#else
|
|
#define __START_KERNEL_map 0xffffffff80000000
|
|
#endif
|
|
|
|
#define __pa(x) __phys_addr((unsigned long)(x))
|
|
#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET))
|
|
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
|
|
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
|
|
|
|
#ifdef CONFIG_FLATMEM
|
|
#define pfn_valid(pfn) ((pfn) < max_mapnr)
|
|
#endif /* CONFIG_FLATMEM */
|
|
|
|
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \
|
|
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
|
|
#include <asm-generic/memory_model.h>
|
|
#include <asm-generic/getorder.h>
|
|
#endif
|
|
|
|
#endif /* _ASM_SW64_PAGE_H */
|