mirror of
https://github.com/opnsense/src.git
synced 2026-02-19 02:30:08 -05:00
307f78f3ed
MFC after: 1 week Reviewed by: bz, emaste, hselasky, manu Differential Revision: https://reviews.freebsd.org/D33562
131 lines
4.1 KiB
C
131 lines
4.1 KiB
C
/*-
|
|
* Copyright (c) 2010 Isilon Systems, Inc.
|
|
* Copyright (c) 2010 iX Systems, Inc.
|
|
* Copyright (c) 2010 Panasas, Inc.
|
|
* Copyright (c) 2013-2016 Mellanox Technologies, Ltd.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice unmodified, this list of conditions, and the following
|
|
* disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
#ifndef _LINUXKPI_LINUX_PAGE_H_
|
|
#define _LINUXKPI_LINUX_PAGE_H_
|
|
|
|
#include <linux/types.h>
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/vmmeter.h>
|
|
|
|
#include <machine/atomic.h>
|
|
#include <vm/vm.h>
|
|
#include <vm/vm_page.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#if defined(__i386__) || defined(__amd64__)
|
|
#include <machine/md_var.h>
|
|
#endif
|
|
|
|
typedef unsigned long linux_pte_t;
|
|
typedef unsigned long linux_pmd_t;
|
|
typedef unsigned long linux_pgd_t;
|
|
typedef unsigned long pgprot_t;
|
|
|
|
#define page vm_page
|
|
|
|
#define LINUXKPI_PROT_VALID (1 << 3)
|
|
#define LINUXKPI_CACHE_MODE_SHIFT 4
|
|
|
|
CTASSERT((VM_PROT_ALL & -LINUXKPI_PROT_VALID) == 0);
|
|
|
|
#define PAGE_KERNEL_IO 0x0000
|
|
|
|
static inline pgprot_t
|
|
cachemode2protval(vm_memattr_t attr)
|
|
{
|
|
return ((attr << LINUXKPI_CACHE_MODE_SHIFT) | LINUXKPI_PROT_VALID);
|
|
}
|
|
|
|
static inline vm_memattr_t
|
|
pgprot2cachemode(pgprot_t prot)
|
|
{
|
|
if (prot & LINUXKPI_PROT_VALID)
|
|
return (prot >> LINUXKPI_CACHE_MODE_SHIFT);
|
|
else
|
|
return (VM_MEMATTR_DEFAULT);
|
|
}
|
|
|
|
#define virt_to_page(x) PHYS_TO_VM_PAGE(vtophys(x))
|
|
#define page_to_pfn(pp) (VM_PAGE_TO_PHYS(pp) >> PAGE_SHIFT)
|
|
#define pfn_to_page(pfn) (PHYS_TO_VM_PAGE((pfn) << PAGE_SHIFT))
|
|
#define nth_page(page,n) pfn_to_page(page_to_pfn(page) + (n))
|
|
#define page_to_phys(page) VM_PAGE_TO_PHYS(page)
|
|
|
|
#define clear_page(page) memset(page, 0, PAGE_SIZE)
|
|
#define pgprot_noncached(prot) \
|
|
(((prot) & VM_PROT_ALL) | cachemode2protval(VM_MEMATTR_UNCACHEABLE))
|
|
#ifdef VM_MEMATTR_WRITE_COMBINING
|
|
#define pgprot_writecombine(prot) \
|
|
(((prot) & VM_PROT_ALL) | cachemode2protval(VM_MEMATTR_WRITE_COMBINING))
|
|
#else
|
|
#define pgprot_writecombine(prot) pgprot_noncached(prot)
|
|
#endif
|
|
|
|
#undef PAGE_MASK
|
|
#define PAGE_MASK (~(PAGE_SIZE-1))
|
|
/*
|
|
* Modifying PAGE_MASK in the above way breaks trunc_page, round_page,
|
|
* and btoc macros. Therefore, redefine them in a way that makes sense
|
|
* so the LinuxKPI consumers don't get totally broken behavior.
|
|
*/
|
|
#undef btoc
|
|
#define btoc(x) (((vm_offset_t)(x) + PAGE_SIZE - 1) >> PAGE_SHIFT)
|
|
#undef round_page
|
|
#define round_page(x) ((((uintptr_t)(x)) + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1))
|
|
#undef trunc_page
|
|
#define trunc_page(x) ((uintptr_t)(x) & ~(PAGE_SIZE - 1))
|
|
|
|
#if defined(__i386__) || defined(__amd64__)
|
|
#undef clflush
|
|
#undef clflushopt
|
|
static inline void
|
|
lkpi_clflushopt(unsigned long addr)
|
|
{
|
|
if (cpu_stdext_feature & CPUID_STDEXT_CLFLUSHOPT)
|
|
clflushopt(addr);
|
|
else if (cpu_feature & CPUID_CLFSH)
|
|
clflush(addr);
|
|
else
|
|
pmap_invalidate_cache();
|
|
}
|
|
#define clflush(x) clflush((unsigned long)(x))
|
|
#define clflushopt(x) lkpi_clflushopt((unsigned long)(x))
|
|
|
|
static inline void
|
|
clflush_cache_range(void *addr, unsigned int size)
|
|
{
|
|
pmap_force_invalidate_cache_range((vm_offset_t)addr,
|
|
(vm_offset_t)addr + size);
|
|
}
|
|
#endif
|
|
|
|
#endif /* _LINUXKPI_LINUX_PAGE_H_ */
|