diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-06-30 15:32:45 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-06-30 15:41:59 +0100 |
| commit | 3f5582dd845be5af2d1de01b99796abda9ecbdd9 (patch) | |
| tree | 478ab3bf5ba4dc40b70de1a3c684a7bf4192c81f /Documentation | |
| parent | 1758b90e38f53b93821c908201826e825a37cb65 (diff) | |
drm/i915: Convert sandybridge_pcode_*() to use intel_wait_for_register()
We want to replace the inline wait_for() with an out-of-line hybrid
busy/sleep wait_for() in the hopes of speeding up the communication wit
the PCode unit.
Indeed, on my i5-2500s, __gen6_update_ring_freq improves from
6,080,661ns to 8172ns.
v2: Missed using _fw variants for sandybridge_pcode_read()
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1467297225-21379-2-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions