Paul Menzel 715601e4e3 Revert "iommu/amd: Fix performance counter initialization" ... This reverts commit 6778ff5b21. The original commit tries to address an issue, where PMC power-gating causing the IOMMU PMC pre-init test to fail on certain desktop/mobile platforms where the power-gating is normally enabled. There have been several reports that the workaround still does not guarantee to work, and can add up to 100 ms (on the worst case) to the boot process on certain platforms such as the MSI B350M MORTAR with AMD Ryzen 3 2200G. Therefore, revert this commit as a prelude to removing the pre-init test. Link: https://lore.kernel.org/linux-iommu/alpine.LNX.3.20.13.2006030935570.3181@monopod.intra.ispras.ru/ Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=201753 Cc: Tj (Elloe Linux) <ml.linux@elloe.vision> Cc: Shuah Khan <skhan@linuxfoundation.org> Cc: Alexander Monakov <amonakov@ispras.ru> Cc: David Coe <david.coe@live.co.uk> Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> Link: https://lore.kernel.org/r/20210409085848.3908-2-suravee.suthikulpanit@amd.com Signed-off-by: Joerg Roedel <jroedel@suse.de>		2021-04-15 15:41:21 +02:00
..
amd_iommu_types.h	iommu/amd: Remove the unused device errata code	2021-04-07 11:14:43 +02:00
amd_iommu.h	iommu/amd: Move a few prototypes to include/linux/amd-iommu.h	2021-04-07 11:14:55 +02:00
debugfs.c
init.c	Revert "iommu/amd: Fix performance counter initialization"	2021-04-15 15:41:21 +02:00
io_pgtable.c	iommu/amd: Fix sleeping in atomic in increase_address_space()	2021-03-04 13:15:56 +01:00
iommu_v2.c	iommu/amd: Use DEFINE_SPINLOCK() for spinlock	2021-01-27 12:41:11 +01:00
iommu.c	iommu/amd: Remove duplicate check of devid	2021-04-15 15:40:10 +02:00
Kconfig	iommu/amd: Prepare for generic IO page table framework	2021-01-28 16:51:17 +01:00
Makefile	iommu/amd: Prepare for generic IO page table framework	2021-01-28 16:51:17 +01:00
quirks.c