diff options
| author | Imre Deak <imre.deak@intel.com> | 2016-12-05 11:27:38 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-19 14:18:06 -0500 |
| commit | 3b376640445a68d3531caf39d8092331fd14b641 (patch) | |
| tree | f9917e50c137d621f5508fa964eddb2e3e16ac93 /drivers/gpu/drm/drm_irq.c | |
| parent | 26eae206b78669ec4994d047a4b9418b1c588e35 (diff) | |
drm/i915/gen9: Fix PCODE polling during SAGV disabling
commit dccf82ad1775f2b9c36ec85e25e39d88c7e86818 upstream.
According to the previous patch, it's possible atm that we call
intel_do_sagv_disable() only once during the 1ms period and time out if
that call fails. As opposed to this the spec says that we need to keep
retrying this request for a 1ms duration, so let's do this similarly to
the CDCLK change notification request.
v4-5:
- Rebased on the reply_mask, reply change.
v6:
- Remove w/s change. (Lyude)
- Rebased on the timeout_base argument change.
Cc: Lyude <cpaul@redhat.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Fixes: 656d1b89e5ff ("drm/i915/skl: Add support for the SAGV, fix underrun hangs")
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Lyude <lyude@redhat.com> (v4)
Link: http://patchwork.freedesktop.org/patch/msgid/1480955258-26311-2-git-send-email-imre.deak@intel.com
(cherry picked from commit b3b8e99984a4eace91bc097e8f8cec71441cae16)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
0 files changed, 0 insertions, 0 deletions