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drm/i915: Move intel_init_clock_gating() to i915_gem_init()

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Despite its name intel_init_clock_gating applies both display clock gating
workarounds; GT mmio workarounds and the occasional GT power context
workaround. Worse, sometimes it includes a context register workaround
which we need to apply before we record the default HW state for all
contexts.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171110142634.10551-4-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2017-11-10 14:26:30 +00:00
parent f58d13d571
commit cc6a818ad6
2 changed files with 15 additions and 4 deletions
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17
drivers/gpu/drm/i915/i915_gem.c
View File

@ -5024,6 +5024,21 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
intel_init_gt_powersave(dev_priv);
ret = i915_gem_init_hw(dev_priv);
if (ret)
goto out_unlock;
/*
* Despite its name intel_init_clock_gating applies both display
* clock gating workarounds; GT mmio workarounds and the occasional
* GT power context workaround. Worse, sometimes it includes a context
* register workaround which we need to apply before we record the
* default HW state for all contexts.
*
* FIXME: break up the workarounds and apply them at the right time!
*/
intel_init_clock_gating(dev_priv);
out_unlock:
if (ret == -EIO) {
/* Allow engine initialisation to fail by marking the GPU as
* wedged. But we only want to do this where the GPU is angry,
@ -5035,8 +5050,6 @@ int i915_gem_init(struct drm_i915_private *dev_priv)
}
ret = 0;
}
out_unlock:
intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL);
mutex_unlock(&dev_priv->drm.struct_mutex);

2
drivers/gpu/drm/i915/intel_display.c
View File

@ -15198,8 +15198,6 @@ void intel_modeset_gem_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = to_i915(dev);
intel_init_clock_gating(dev_priv);
intel_setup_overlay(dev_priv);
}