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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PAGE_DEFS_H
#define _ASM_X86_PAGE_DEFS_H
#include <linux/const.h>
#include <linux/types.h>
#include <linux/mem_encrypt.h>
#include <vdso/page.h>
#define __VIRTUAL_MASK ((1UL << __VIRTUAL_MASK_SHIFT) - 1)
/* Cast P*D_MASK to a signed type so that it is sign-extended if
virtual addresses are 32-bits but physical addresses are larger
(ie, 32-bit PAE). */
#define PHYSICAL_PAGE_MASK (((signed long)PAGE_MASK) & __PHYSICAL_MASK)
#define PHYSICAL_PMD_PAGE_MASK (((signed long)PMD_MASK) & __PHYSICAL_MASK)
#define PHYSICAL_PUD_PAGE_MASK (((signed long)PUD_MASK) & __PHYSICAL_MASK)
#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
#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET)
#define VM_DATA_DEFAULT_FLAGS VM_DATA_FLAGS_TSK_EXEC
/* Physical address where kernel should be loaded. */
#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
+ (CONFIG_PHYSICAL_ALIGN - 1)) \
& ~(CONFIG_PHYSICAL_ALIGN - 1))
#define __START_KERNEL (__START_KERNEL_map + LOAD_PHYSICAL_ADDR)
#ifdef CONFIG_X86_64
#include <asm/page_64_types.h>
#define IOREMAP_MAX_ORDER (PUD_SHIFT)
#else
#include <asm/page_32_types.h>
#define IOREMAP_MAX_ORDER (PMD_SHIFT)
#endif /* CONFIG_X86_64 */
#ifndef __ASSEMBLER__
#ifdef CONFIG_DYNAMIC_PHYSICAL_MASK
extern phys_addr_t physical_mask;
#define __PHYSICAL_MASK physical_mask
#else
#define __PHYSICAL_MASK ((phys_addr_t)((1ULL << __PHYSICAL_MASK_SHIFT) - 1))
#endif
extern int devmem_is_allowed(unsigned long pagenr);
extern unsigned long max_low_pfn_mapped;
extern unsigned long max_pfn_mapped;
static inline phys_addr_t get_max_mapped(void)
{
return (phys_addr_t)max_pfn_mapped << PAGE_SHIFT;
}
bool pfn_range_is_mapped(unsigned long start_pfn, unsigned long end_pfn);
extern void initmem_init(void);
#endif /* !__ASSEMBLER__ */
#endif /* _ASM_X86_PAGE_DEFS_H */
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