Joerg Roedel 7e4bfd3b9a iommu/amd: Increase timeout waiting for GA log enablement ... [ Upstream commit 42bb5aa043 ] On some systems it can take a long time for the hardware to enable the GA log of the AMD IOMMU. The current wait time is only 0.1ms, but testing showed that it can take up to 14ms for the GA log to enter running state after it has been enabled. Sometimes the long delay happens when booting the system, sometimes only on resume. Adjust the timeout accordingly to not print a warning when hardware takes a longer than usual. There has already been an attempt to fix this with commit 9b45a7738e ("iommu/amd: Fix loop timeout issue in iommu_ga_log_enable()") But that commit was based on some wrong math and did not fix the issue in all cases. Cc: "D. Ziegfeld" <dzigg@posteo.de> Cc: Jörg-Volker Peetz <jvpeetz@web.de> Fixes: 8bda0cfbdc ("iommu/amd: Detect and initialize guest vAPIC log") Signed-off-by: Joerg Roedel <jroedel@suse.de> Link: https://lore.kernel.org/r/20220520102214.12563-1-joro@8bytes.org Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-06-09 10:23:16 +02:00
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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
amd_iommu.h	iommu/amd: Recover from event log overflow	2022-03-08 19:12:43 +01:00
amd_iommu_types.h	iommu/amd: Recover from event log overflow	2022-03-08 19:12:43 +01:00
debugfs.c	iommu/amd: Move AMD IOMMU driver into subdirectory	2020-06-10 17:46:42 +02:00
init.c	iommu/amd: Increase timeout waiting for GA log enablement	2022-06-09 10:23:16 +02:00
io_pgtable.c	iommu/amd: Fix I/O page table memory leak	2022-03-08 19:12:49 +01:00
iommu.c	iommu/amd: Enable swiotlb in all cases	2022-06-09 10:23:13 +02:00
iommu_v2.c	iommu/amd: Clarify AMD IOMMUv2 initialization messages	2021-12-01 09:04:55 +01:00
quirks.c	iommu/amd: Move AMD IOMMU driver into subdirectory	2020-06-10 17:46:42 +02:00