From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 26 Jun 2013 04:11:19 +0000 (-0400)
Subject: drm/radeon/kms: add dpm support for rv7xx (v4)
X-Git-Tag: v3.11-rc1~65^2~60^2~90
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=66229b200598a3b66b839d1759ff3f5b17ac5639;p=pandora-kernel.git

drm/radeon/kms: add dpm support for rv7xx (v4)

This adds dpm support for rv7xx asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching

Set radeon.dpm=1 to enable.

v2: reduce stack usage
v3: fix 64 bit div
v4: fix state enable

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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