From e3f33d46fd917747e966f8e6d25f2940223ad1ee Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Thu, 14 Jun 2012 11:04:50 -0700 Subject: drm/i915: add L3 bank clock gating disable on VLV Prevents a possible hang: WaDisableL3Bank2xClockGate. v2: only apply to VLV, IVB doesn't need this anymore References: https://bugs.freedesktop.org/show_bug.cgi?id=50245 Signed-off-by: Jesse Barnes Reviewed-by: Eugeni Dodonov Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_pm.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/gpu/drm/i915/intel_pm.c') diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 47c1a3e9b4a..17c16f02624 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3517,6 +3517,8 @@ static void valleyview_init_clock_gating(struct drm_device *dev) GEN6_RCPBUNIT_CLOCK_GATE_DISABLE | GEN6_RCCUNIT_CLOCK_GATE_DISABLE); + I915_WRITE(GEN7_UCGCTL4, GEN7_L3BANK2X_CLOCK_GATE_DISABLE); + for_each_pipe(pipe) { I915_WRITE(DSPCNTR(pipe), I915_READ(DSPCNTR(pipe)) | -- cgit v1.2.3-70-g09d2