mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-11 21:14:07 +08:00
93d051550e
Raven Ridge systems may have malfunction touchpad or hang at boot if incorrect IVRS IOAPIC is provided by BIOS. Users already found correct "ivrs_ioapic=" values, let's put them inside kernel to workaround buggy BIOS. BugLink: https://bugs.launchpad.net/bugs/1795292 BugLink: https://bugs.launchpad.net/bugs/1837688 Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
15 lines
290 B
C
15 lines
290 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
|
|
#ifndef AMD_IOMMU_H
|
|
#define AMD_IOMMU_H
|
|
|
|
int __init add_special_device(u8 type, u8 id, u16 *devid, bool cmd_line);
|
|
|
|
#ifdef CONFIG_DMI
|
|
void amd_iommu_apply_ivrs_quirks(void);
|
|
#else
|
|
static void amd_iommu_apply_ivrs_quirks(void) { }
|
|
#endif
|
|
|
|
#endif
|