linuxkpi: Add asm/set_memory.h
Provide functions needed for drm-kmod. MFC after: 1 week Sponsored by: Beckhoff Automation GmbH & Co. KG Differential Revision: https://reviews.freebsd.org/D35571
This commit is contained in:
parent
137e91dbf6
commit
0e45856f9a
117
sys/compat/linuxkpi/common/include/asm/set_memory.h
Normal file
117
sys/compat/linuxkpi/common/include/asm/set_memory.h
Normal file
@ -0,0 +1,117 @@
|
||||
/*-
|
||||
* Copyright (c) 2010 Isilon Systems, Inc.
|
||||
* Copyright (c) 2016 Matt Macy (mmacy@nextbsd.org)
|
||||
* Copyright (c) 2017 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.
|
||||
*/
|
||||
|
||||
#ifndef _LINUXKPI_ASM_SET_MEMORY_H_
|
||||
#define _LINUXKPI_ASM_SET_MEMORY_H_
|
||||
|
||||
#include <linux/page.h>
|
||||
|
||||
static inline int
|
||||
set_memory_uc(unsigned long addr, int numpages)
|
||||
{
|
||||
return (pmap_change_attr(addr, numpages, VM_MEMATTR_UNCACHEABLE));
|
||||
}
|
||||
|
||||
static inline int
|
||||
set_memory_wc(unsigned long addr, int numpages)
|
||||
{
|
||||
#ifdef VM_MEMATTR_WRITE_COMBINING
|
||||
return (pmap_change_attr(addr, numpages, VM_MEMATTR_WRITE_COMBINING));
|
||||
#else
|
||||
return (set_memory_uc(addr, numpages));
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline int
|
||||
set_memory_wb(unsigned long addr, int numpages)
|
||||
{
|
||||
return (pmap_change_attr(addr, numpages, VM_MEMATTR_WRITE_BACK));
|
||||
}
|
||||
|
||||
static inline int
|
||||
set_pages_uc(vm_page_t page, int numpages)
|
||||
{
|
||||
KASSERT(numpages == 1, ("%s: numpages %d", __func__, numpages));
|
||||
|
||||
pmap_page_set_memattr(page, VM_MEMATTR_UNCACHEABLE);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static inline int
|
||||
set_pages_wc(vm_page_t page, int numpages)
|
||||
{
|
||||
KASSERT(numpages == 1, ("%s: numpages %d", __func__, numpages));
|
||||
|
||||
#ifdef VM_MEMATTR_WRITE_COMBINING
|
||||
pmap_page_set_memattr(page, VM_MEMATTR_WRITE_COMBINING);
|
||||
#else
|
||||
return (set_pages_uc(page, numpages));
|
||||
#endif
|
||||
return (0);
|
||||
}
|
||||
|
||||
static inline int
|
||||
set_pages_wb(vm_page_t page, int numpages)
|
||||
{
|
||||
KASSERT(numpages == 1, ("%s: numpages %d", __func__, numpages));
|
||||
|
||||
pmap_page_set_memattr(page, VM_MEMATTR_WRITE_BACK);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static inline int
|
||||
set_pages_array_wb(vm_page_t *pages, int addrinarray)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < addrinarray; i++)
|
||||
set_pages_wb(pages[i], 1);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static inline int
|
||||
set_pages_array_wc(vm_page_t *pages, int addrinarray)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < addrinarray; i++)
|
||||
set_pages_wc(pages[i], 1);
|
||||
return (0);
|
||||
}
|
||||
|
||||
static inline int
|
||||
set_pages_array_uc(vm_page_t *pages, int addrinarray)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < addrinarray; i++)
|
||||
set_pages_uc(pages[i], 1);
|
||||
return (0);
|
||||
}
|
||||
|
||||
#endif /* _LINUXKPI_ASM_SET_MEMORY_H_ */
|
Loading…
Reference in New Issue
Block a user