From: Marek Olšák <marek.olsak@amd.com>
Date: Sat, 1 Mar 2014 23:56:18 +0000 (+0100)
Subject: drm/radeon: track memory statistics about VRAM and GTT usage and buffer moves v2
X-Git-Tag: v3.15-rc1~51^2~58^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=67e8e3f970ad747d3c854fb40f8ec0cecedd9089;p=pandora-kernel.git

drm/radeon: track memory statistics about VRAM and GTT usage and buffer moves v2

The statistics are:
- VRAM usage in bytes
- GTT usage in bytes
- number of bytes moved by TTM

The last one is actually a counter, so you need to sample it before and after
command submission and take the difference.

This is useful for finding performance bottlenecks. Userspace queries are
also added.

v2: use atomic64_t

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
---

Reading git-diff-tree failed