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/* Public domain. */
#ifndef _LINUX_MM_H
#define _LINUX_MM_H
#include <sys/types.h>
#include <sys/param.h>
#include <sys/malloc.h>
#include <sys/stdint.h>
#include <sys/atomic.h>
#include <machine/cpu.h>
#include <uvm/uvm_extern.h>
#include <linux/fs.h>
#include <asm/pgtable.h>
#define unmap_mapping_range(mapping, holebegin, holeend, even_cows)
#define PageHighMem(x) 0
#define page_address(x) VM_PAGE_TO_PHYS(x)
#define page_to_phys(page) (VM_PAGE_TO_PHYS(page))
#define page_to_pfn(pp) (VM_PAGE_TO_PHYS(pp) / PAGE_SIZE)
#define pfn_to_page(pfn) (PHYS_TO_VM_PAGE(ptoa(pfn)))
#define nth_page(page, n) (&(page)[(n)])
#define offset_in_page(off) ((off) & PAGE_MASK)
#define set_page_dirty(page) atomic_clearbits_int(&page->pg_flags, PG_CLEAN)
#define PAGE_ALIGN(addr) (((addr) + PAGE_MASK) & ~PAGE_MASK)
#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
#define is_vmalloc_addr(ptr) true
static inline void *
kvmalloc(size_t size, gfp_t flags)
{
return malloc(size, M_DRM, flags);
}
static inline void *
kvmalloc_array(size_t n, size_t size, int flags)
{
if (n != 0 && SIZE_MAX / n < size)
return NULL;
return malloc(n * size, M_DRM, flags);
}
static inline void *
kvcalloc(size_t n, size_t size, int flags)
{
return kvmalloc_array(n, size, flags | M_ZERO);
}
static inline void *
kvzalloc(size_t size, int flags)
{
return malloc(size, M_DRM, flags | M_ZERO);
}
static inline void
kvfree(const void *objp)
{
free((void *)objp, M_DRM, 0);
}
static inline long
si_mem_available(void)
{
return uvmexp.free;
}
#define MAX_ORDER 11
static inline unsigned int
get_order(size_t size)
{
return flsl((size - 1) >> PAGE_SHIFT);
}
#endif
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