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drm/i915/guc: Revert "drm/i915/guc: enable GuC loading & submission by default"

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This reverts commit 041824ee25.

We have latency issues that might impact the performance: #96606.
and hangs and loading issues on resume after S4: #96526.

This is also blocking a platform milestone so let's disable
this for now while we make sure we don't have any more loading
issue, or related basic hangs and it pass BAT for real in all
platofmrs.

In case BAT is wrong let's first fix BAT before re-enable it here.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96606
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96526
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Gordon <david.s.gordon@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Christophe Prigent <christophe.prigent@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1468884477-30086-1-git-send-email-rodrigo.vivi@intel.com
(cherry picked from commit fe993bc958)
[danvet: Drop cc: stable since this is for 4.8 only.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Rodrigo Vivi 2016-07-18 16:27:57 -07:00 committed by Daniel Vetter
parent 1542f5d90a
commit c5f87f02f4
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/i915/i915_params.c
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@ -54,8 +54,8 @@ struct i915_params i915 __read_mostly = {
.verbose_state_checks = 1,
.nuclear_pageflip = 0,
.edp_vswing = 0,
.enable_guc_loading = -1,
.enable_guc_submission = -1,
.enable_guc_loading = 0,
.enable_guc_submission = 0,
.guc_log_level = -1,
.enable_dp_mst = true,
.inject_load_failure = 0,
@ -203,12 +203,12 @@ MODULE_PARM_DESC(edp_vswing,
module_param_named_unsafe(enable_guc_loading, i915.enable_guc_loading, int, 0400);
MODULE_PARM_DESC(enable_guc_loading,
"Enable GuC firmware loading "
"(-1=auto [default], 0=never, 1=if available, 2=required)");
"(-1=auto, 0=never [default], 1=if available, 2=required)");
module_param_named_unsafe(enable_guc_submission, i915.enable_guc_submission, int, 0400);
MODULE_PARM_DESC(enable_guc_submission,
"Enable GuC submission "
"(-1=auto [default], 0=never, 1=if available, 2=required)");
"(-1=auto, 0=never [default], 1=if available, 2=required)");
module_param_named(guc_log_level, i915.guc_log_level, int, 0400);
MODULE_PARM_DESC(guc_log_level,