linux-mips
[Top] [All Lists]

[PATCH] pciatuo setup P2P bridge properly

To: linux-mips@linux-mips.org
Subject: [PATCH] pciatuo setup P2P bridge properly
From: Jun Sun <jsun@mvista.com>
Date: Wed, 9 Apr 2003 16:47:02 -0700
Cc: jsun@mvista.com
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mutt/1.2.5i
This patches solves two problems:

1) if there are no devices behind P2P bridge, the xxx_base and xxx_limit
will be set to the same address, which willd decode 4Kb for MEM space
or 16 bytes for IO space at at that address.  This address will overlap
with the next pci device resources assigned right after the P2P bridge.

Simply adding 1 byte would leave proper cushion.

2) Sometimes P2P bridge controller may need resources.  (Don't ask me why)
We were ignoring this before.

Jun

Attachment: 030409.pciauto-setup-bridge-properly.patch
Description: Text document

<Prev in Thread] Current Thread [Next in Thread>
  • [PATCH] pciatuo setup P2P bridge properly, Jun Sun <=