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linux/drivers/iommu/amd_iommu.h

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iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systems 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>
2019-08-21 13:10:04 +08:00
/* 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
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