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Documentation: PCI: convert acpi-info.txt to reST
Convert plain text documentation to reStructuredText format and add it to
Sphinx TOC tree. No essential content change.
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
authored by
Changbin Du
and committed by
Bjorn Helgaas
b66357f3
3b9bae02
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Documentation/PCI/acpi-info.txt
Documentation/PCI/acpi-info.rst
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Documentation/PCI/acpi-info.txt
Documentation/PCI/acpi-info.rst
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ACPI considerations for PCI host bridges
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.. SPDX-License-Identifier: GPL-2.0
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========================================
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ACPI considerations for PCI host bridges
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========================================
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The general rule is that the ACPI namespace should describe everything the
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OS might use unless there's another way for the OS to find it [1, 2].
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[4] ACPI 6.2, sec 6.4.3.5.1, 2, 3, 4:
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QWord/DWord/Word Address Space Descriptor (.1, .2, .3)
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General Flags: Bit [0] Ignored
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General Flags: Bit [0] Ignored
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Extended Address Space Descriptor (.4)
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General Flags: Bit [0] Consumer/Producer:
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1–This device consumes this resource
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0–This device produces and consumes this resource
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General Flags: Bit [0] Consumer/Producer:
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* 1 – This device consumes this resource
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* 0 – This device produces and consumes this resource
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[5] ACPI 6.2, sec 19.6.43:
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ResourceUsage specifies whether the Memory range is consumed by