mirror of https://gitee.com/openkylin/linux.git
33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
|
/*
|
||
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
||
|
|
* License. See the file "COPYING" in the main directory of this archive
|
||
|
|
* for more details.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2000 Ani Joshi <ajoshi@unixbox.com>
|
||
|
|
* Copyright (C) 2000, 2001 Ralf Baechle <ralf@gnu.org>
|
||
|
|
* Copyright (C) 2005 Ilya A. Volynets-Evenbakh <ilya@total-knowledge.com>
|
||
|
|
* swiped from i386, and cloned for MIPS by Geert, polished by Ralf.
|
||
|
|
* IP32 changes by Ilya.
|
||
|
|
* Cavium Networks: Create new dma setup for Cavium Networks Octeon based on
|
||
|
|
* the kernels original.
|
||
|
|
*/
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/mm.h>
|
||
|
|
|
||
|
|
#include <dma-coherence.h>
|
||
|
|
|
||
|
|
dma_addr_t octeon_map_dma_mem(struct device *dev, void *ptr, size_t size)
|
||
|
|
{
|
||
|
|
/* Without PCI/PCIe this function can be called for Octeon internal
|
||
|
|
devices such as USB. These devices all support 64bit addressing */
|
||
|
|
mb();
|
||
|
|
return virt_to_phys(ptr);
|
||
|
|
}
|
||
|
|
|
||
|
|
void octeon_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr)
|
||
|
|
{
|
||
|
|
/* Without PCI/PCIe this function can be called for Octeon internal
|
||
|
|
* devices such as USB. These devices all support 64bit addressing */
|
||
|
|
return;
|
||
|
|
}
|