From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Thu, 27 Feb 2014 11:34:51 +0000 (+0100)
Subject: drm/vmwgfx: Use a per-device semaphore for reservation protection
X-Git-Tag: v3.15-rc1~51^2~25^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=294adf7d86226c0e6abeb4475159b03aa315d56f;p=pandora-kernel.git

drm/vmwgfx: Use a per-device semaphore for reservation protection

Don't use a per-master semaphore (ttm lock) for reservation protection, but
rather a per-device semaphore. This is needed since clients connecting using
render nodes aren't master aware.

The ttm lock used should probably be replaced with a reader-write semaphore
once the function down_xx_interruptible() is available.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
---

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