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doc: Remove references to IBM Calgary

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The Calgary IOMMU driver has been removed in

  90dc392fc4 ("x86: Remove the calgary IOMMU driver")

Clean up stale docs that refer to it.

Signed-off-by: Hubert Jasudowicz <hubert.jasudowicz@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/1bd2b57dd1db53df09e520b8170ff61418805de4.1623274832.git.hubert.jasudowicz@gmail.com
This commit is contained in:
Hubert Jasudowicz 2021-06-09 23:51:12 +02:00 committed by Borislav Petkov
parent ec35d1d93b
commit 0e5a89dbb4
1 changed files with 1 additions and 30 deletions
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31
Documentation/x86/x86_64/boot-options.rst
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@ -247,16 +247,11 @@ Multiple x86-64 PCI-DMA mapping implementations exist, for example:
Kernel boot message: "PCI-DMA: Using software bounce buffering Kernel boot message: "PCI-DMA: Using software bounce buffering
for IO (SWIOTLB)" for IO (SWIOTLB)"
4. <arch/x86_64/pci-calgary.c> : IBM Calgary hardware IOMMU. Used in IBM
pSeries and xSeries servers. This hardware IOMMU supports DMA address
mapping with memory protection, etc.
Kernel boot message: "PCI-DMA: Using Calgary IOMMU"
:: ::
iommu=[<size>][,noagp][,off][,force][,noforce] iommu=[<size>][,noagp][,off][,force][,noforce]
[,memaper[=<order>]][,merge][,fullflush][,nomerge] [,memaper[=<order>]][,merge][,fullflush][,nomerge]
[,noaperture][,calgary] [,noaperture]
General iommu options: General iommu options:
@ -295,8 +290,6 @@ iommu options only relevant to the AMD GART hardware IOMMU:
Don't initialize the AGP driver and use full aperture. Don't initialize the AGP driver and use full aperture.
panic panic
Always panic when IOMMU overflows. Always panic when IOMMU overflows.
calgary
Use the Calgary IOMMU if it is available
iommu options only relevant to the software bounce buffering (SWIOTLB) IOMMU iommu options only relevant to the software bounce buffering (SWIOTLB) IOMMU
implementation: implementation:
@ -307,28 +300,6 @@ implementation:
force force
Force all IO through the software TLB. Force all IO through the software TLB.
Settings for the IBM Calgary hardware IOMMU currently found in IBM
pSeries and xSeries machines
calgary=[64k,128k,256k,512k,1M,2M,4M,8M]
Set the size of each PCI slot's translation table when using the
Calgary IOMMU. This is the size of the translation table itself
in main memory. The smallest table, 64k, covers an IO space of
32MB; the largest, 8MB table, can cover an IO space of 4GB.
Normally the kernel will make the right choice by itself.
calgary=[translate_empty_slots]
Enable translation even on slots that have no devices attached to
them, in case a device will be hotplugged in the future.
calgary=[disable=<PCI bus number>]
Disable translation on a given PHB. For
example, the built-in graphics adapter resides on the first bridge
(PCI bus number 0); if translation (isolation) is enabled on this
bridge, X servers that access the hardware directly from user
space might stop working. Use this option if you have devices that
are accessed from userspace directly on some PCI host bridge.
panic
Always panic when IOMMU overflows
Miscellaneous Miscellaneous
============= =============