[PATCH v5 06/12] Documentation: PCI: convert acpi-info.txt to reST

Changbin Du
2019-05-13T14:20:54Z

Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
---
.../PCI/{acpi-info.txt => acpi-info.rst} | 15 ++++++++++-----
Documentation/PCI/index.rst | 1 +
2 files changed, 11 insertions(+), 5 deletions(-)
rename Documentation/PCI/{acpi-info.txt => acpi-info.rst} (96%)

diff --git a/Documentation/PCI/acpi-info.txt b/Documentation/PCI/acpi-info.rst
similarity index 96%
rename from Documentation/PCI/acpi-info.txt
rename to Documentation/PCI/acpi-info.rst
index 3ffa3b03970e..060217081c79 100644
--- a/Documentation/PCI/acpi-info.txt
+++ b/Documentation/PCI/acpi-info.rst
@@ -1,4 +1,8 @@
- ACPI considerations for PCI host bridges
+.. SPDX-License-Identifier: GPL-2.0
+
+========================================
+ACPI considerations for PCI host bridges
+========================================

The general rule is that the ACPI namespace should describe everything the
OS might use unless there's another way for the OS to find it [1, 2].
@@ -131,12 +135,13 @@ address always corresponds to bus 0, even if the bus range below the bridge

[4] ACPI 6.2, sec 6.4.3.5.1, 2, 3, 4:
QWord/DWord/Word Address Space Descriptor (.1, .2, .3)
- General Flags: Bit [0] Ignored
+ General Flags: Bit [0] Ignored

Extended Address Space Descriptor (.4)
- General Flags: Bit [0] Consumer/Producer:
- 1–This device consumes this resource
- 0–This device produces and consumes this resource
+ General Flags: Bit [0] Consumer/Producer:
+
+ * 1 – This device consumes this resource
+ * 0 – This device produces and consumes this resource

[5] ACPI 6.2, sec 19.6.43:
ResourceUsage specifies whether the Memory range is consumed by
diff --git a/Documentation/PCI/index.rst b/Documentation/PCI/index.rst
index 458354daac47..6f573f3df993 100644
--- a/Documentation/PCI/index.rst
+++ b/Documentation/PCI/index.rst
@@ -12,3 +12,4 @@ Linux PCI Bus Subsystem
picebus-howto
pci-iov-howto
msi-howto
+ acpi-info
--
2.20.1