From: Pekka Paalanen <pq@iki.fi>
Date: Sun, 16 Aug 2009 22:18:38 +0000 (+0300)
Subject: drm/ttm: optimize bo_kmap_type values
X-Git-Tag: v2.6.32-rc1~52^2~109
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a0724fcf829e5afb66159ef68cb16a805ea11b42;p=pandora-kernel.git

drm/ttm: optimize bo_kmap_type values

A micro-optimization on the function ttm_kmap_obj_virtual().

By defining the values of enum ttm_bo_kmap_obj::bo_kmap_type to have a
bit indicating iomem, size of the function ttm_kmap_obj_virtual() will be
reduced by 16 bytes on x86_64 (gcc 4.1.2).

ttm_kmap_obj_virtual() may be heavily used, when buffer objects are
accessed via wrappers, that work for both kinds of memory addresses:
iomem cookies and kernel virtual.

Signed-off-by: Pekka Paalanen <pq@iki.fi>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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