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| author | Rodrigo Vivi | 2013-06-06 21:58:16 +0200 |
|---|---|---|
| committer | Daniel Vetter | 2013-06-07 17:56:55 +0200 |
| commit | fd3da6c95b6d865446fa9b29df6edff4343e385a (patch) | |
| tree | a6b9c198d259871f9acd94f8760d279f2bf73652 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | drm/i915: Track when we dirty the scanout with render commands (diff) | |
| download | kernel-qcow2-linux-fd3da6c95b6d865446fa9b29df6edff4343e385a.tar.gz kernel-qcow2-linux-fd3da6c95b6d865446fa9b29df6edff4343e385a.tar.xz kernel-qcow2-linux-fd3da6c95b6d865446fa9b29df6edff4343e385a.zip | |
drm/i915: WA: FBC Render Nuke.
WaFbcNukeOn3DBlt for IVB, HSW.
According BSPec: "Workaround: Do not enable Render Command Streamer tracking for FBC.
Instead insert a LRI to address 0x50380 with data 0x00000004 after the PIPE_CONTROL that
follows each render submission."
v2: Chris noticed that flush_domains check was missing here and also suggested to do
LRI only when fbc is enabled. To avoid do a I915_READ on every flush lets use the
module parameter check.
v3: Adding Wa name as Damien suggested.
v4: Ville noticed VLV doesn't support fbc at all and comment came wrong from spec.
v5: Ville noticed than on blt a Cache Clean LRI should be used instead the Nuke one.
v6: Check for flush domain on blt (by Ville).
Check for scanout dirty (by Chris).
v7: Apply proper fbc_dirty implemented by Chris.
v8: remove unused variables.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 8faa43fc9bc9..adc44e42b23c 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -274,7 +274,7 @@ static void gen7_enable_fbc(struct drm_crtc *crtc, unsigned long interval) struct drm_i915_gem_object *obj = intel_fb->obj; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - I915_WRITE(IVB_FBC_RT_BASE, obj->gtt_offset | ILK_FBC_RT_VALID); + I915_WRITE(IVB_FBC_RT_BASE, obj->gtt_offset); I915_WRITE(ILK_DPFC_CONTROL, DPFC_CTL_EN | DPFC_CTL_LIMIT_1X | IVB_DPFC_CTL_FENCE_EN | |