File: pci-dma.c

package info (click to toggle)
linux 6.1.4-1
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,532,052 kB
  • sloc: ansic: 23,400,063; asm: 266,720; sh: 108,896; makefile: 49,712; python: 36,925; perl: 36,810; cpp: 6,044; yacc: 4,904; lex: 2,722; awk: 1,440; ruby: 25; sed: 5
file content (33 lines) | stat: -rw-r--r-- 626 bytes parent folder | download | duplicates (12)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
// SPDX-License-Identifier: GPL-2.0
/*
 * Dynamic DMA mapping support.
 */

#include <linux/types.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/dmar.h>
#include <asm/iommu.h>
#include <linux/dma-mapping.h>
#include <linux/kernel.h>
#include <asm/page.h>

int no_iommu __read_mostly;
#ifdef CONFIG_IOMMU_DEBUG
int force_iommu __read_mostly = 1;
#else
int force_iommu __read_mostly;
#endif

static int __init pci_iommu_init(void)
{
	if (iommu_detected)
		intel_iommu_init();

	return 0;
}

/* Must execute after PCI subsystem */
fs_initcall(pci_iommu_init);