From cc6a818ad6bdb0d3008314cbd0fc9c9a2cd02695 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 10 Nov 2017 14:26:30 +0000 Subject: [PATCH] drm/i915: Move intel_init_clock_gating() to i915_gem_init() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Cc: Ville Syrjälä Cc: Joonas Lahtinen Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20171110142634.10551-4-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_gem.c | 17 +++++++++++++++-- drivers/gpu/drm/i915/intel_display.c | 2 -- 2 files changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 37586f703c1e..ed335612be25 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -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); diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index da11ba898621..63cc09ade9d1 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -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); }