Contributors: 7
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| FUJITA Tomonori |
74 |
51.75% |
3 |
30.00% |
| Linus Torvalds |
46 |
32.17% |
1 |
10.00% |
| David S. Miller |
17 |
11.89% |
2 |
20.00% |
| Joerg Roedel |
3 |
2.10% |
1 |
10.00% |
| Andrea Righi |
1 |
0.70% |
1 |
10.00% |
| Greg Kroah-Hartman |
1 |
0.70% |
1 |
10.00% |
| Christoph Hellwig |
1 |
0.70% |
1 |
10.00% |
| Total |
143 |
|
10 |
|
/* SPDX-License-Identifier: GPL-2.0 */
/* iommu_common.h: UltraSparc SBUS/PCI common iommu declarations.
*
* Copyright (C) 1999, 2008 David S. Miller (davem@davemloft.net)
*/
#ifndef _IOMMU_COMMON_H
#define _IOMMU_COMMON_H
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/scatterlist.h>
#include <linux/device.h>
#include <linux/iommu-helper.h>
#include <asm/iommu.h>
/*
* These give mapping size of each iommu pte/tlb.
*/
#define IO_PAGE_SHIFT 13
#define IO_PAGE_SIZE (1UL << IO_PAGE_SHIFT)
#define IO_PAGE_MASK (~(IO_PAGE_SIZE-1))
#define IO_PAGE_ALIGN(addr) ALIGN(addr, IO_PAGE_SIZE)
#define IO_TSB_ENTRIES (128*1024)
#define IO_TSB_SIZE (IO_TSB_ENTRIES * 8)
/*
* This is the hardwired shift in the iotlb tag/data parts.
*/
#define IOMMU_PAGE_SHIFT 13
#define SG_ENT_PHYS_ADDRESS(SG) (__pa(sg_virt((SG))))
static inline int is_span_boundary(unsigned long entry,
unsigned long shift,
unsigned long boundary_size,
struct scatterlist *outs,
struct scatterlist *sg)
{
unsigned long paddr = SG_ENT_PHYS_ADDRESS(outs);
int nr = iommu_num_pages(paddr, outs->dma_length + sg->length,
IO_PAGE_SIZE);
return iommu_is_span_boundary(entry, nr, shift, boundary_size);
}
#endif /* _IOMMU_COMMON_H */