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2 Commits (redonkable)

Author SHA1 Message Date
Takashi Iwai ad3e8da2d4 iommu/amd: Apply the same IVRS IOAPIC workaround to Acer Aspire A315-41
Acer Aspire A315-41 requires the very same workaround as the existing
quirk for Dell Latitude 5495.  Add the new entry for that.

BugLink: https://bugzilla.suse.com/show_bug.cgi?id=1137799
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-10-30 10:24:03 +01:00
Kai-Heng Feng 93d051550e 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>
2019-08-23 10:26:48 +02:00