diff options
| author | Chris Wilson <[email protected]> | 2012-07-02 11:51:03 -0300 |
|---|---|---|
| committer | Daniel Vetter <[email protected]> | 2012-07-03 22:09:21 +0200 |
| commit | c4de7b0ffda2bb4843fd7f1052d0a2bb90bd08a5 (patch) | |
| tree | b6806b54c43e44dd15e1bf7bf3480a4f47b8edcd /include/linux | |
| parent | 990bbdadabaa51828e475eda86ee5720a4910cc3 (diff) | |
drm/i915: Implement w/a for sporadic read failures on waking from rc6
As a w/a to prevent reads sporadically returning 0, we need to wait for
the GT thread to return to TC0 before proceeding to read the registers.
v2: adapt for Haswell changes (Eugeni).
v3: use wait_for_atomic_us for thread status polling.
v3: *really* use wait_for_atomic for polling.
References: https://bugs.freedesktop.org/show_bug.cgi?id=50243
Signed-off-by: Chris Wilson <[email protected]>
Signed-off-by: Eugeni Dodonov <[email protected]>
Acked-by: Ben Widawsky <[email protected]>
Signed-off-by: Daniel Vetter <[email protected]>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions