linux-kernel - [PATCH] PCI: Document PCI Hotplug resource reservation parameters

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Date:	Wed, 23 Jan 2013 20:29:06 +0800
From:	Yijing Wang <wangyijing@...wei.com>
To:	Rob Landley <rob@...dley.net>, Bjorn Helgaas <bhelgaas@...gle.com>
CC:	<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-pci@...r.kernel.org>, Hanjun Guo <guohanjun@...wei.com>,
	<jiang.liu@...wei.com>, Yijing Wang <wangyijing@...wei.com>
Subject: [PATCH] PCI: Document PCI Hotplug resource reservation parameters

Document pci hotplug resource reservation parameters hpiosize
and hpmemsize into Documentation/kernel-parameters.txt.
The two parameters can override default hotplug io size(256 bytes)
and default mem size(2M).

Signed-off-by: Yijing Wang <wangyijing@...wei.com>
---
 Documentation/kernel-parameters.txt |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 1fb269b..46eff3d 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2263,6 +2263,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 				the default.
 				off: Turn ECRC off
 				on: Turn ECRC on.
+		hpiosize=nn[KMG]	The fixed amount of bus space which is
+				reserved for hotplug bridge's IO window.
+				Default size is 256 bytes.
+		hpmemsize=nn[KMG]	The fixed amount of bus space which is
+				reserved for hotplug bridge's memory window.
+				Default size is 2 megabytes.
 		realloc=	Enable/disable reallocating PCI bridge resources
 				if allocations done by BIOS are too small to
 				accommodate resources required by all child
-- 
1.7.1


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