linux/drivers/gpu
Imre Deak dccf82ad17 drm/i915/gen9: Fix PCODE polling during SAGV disabling
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: 656d1b89e5 ("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 b3b8e99984)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-12-20 16:29:04 +02:00
..
drm drm/i915/gen9: Fix PCODE polling during SAGV disabling 2016-12-20 16:29:04 +02:00
host1x
ipu-v3 imx-drm plane update cleanup, YUV formats 2016-11-11 09:31:27 +10:00
vga drivers/gpu/vga: allocate vga_arb_write() buffer on stack 2016-10-17 08:21:14 +02:00
Makefile