Attachment 33135 Details for Bug 24977 – disable overlay clock gating

[patch] disable overlay clock gating

overlay_clkgating_965.patch (text/plain), 1.29 KB, created by Daniel Vetter on 2010-02-07 03:30:27 UTC

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Creator: Daniel Vetter

Created: 2010-02-07 03:30:27 UTC

Size: 1.29 KB

patch

obsolete

>diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
>index 45da78e..d2d70a8 100644
>--- a/drivers/gpu/drm/i915/intel_display.c
>+++ b/drivers/gpu/drm/i915/intel_display.c
>@@ -4461,12 +4461,26 @@ void intel_init_clock_gating(struct drm_device *dev)
> 			dspclk_gate |= DSSUNIT_CLOCK_GATE_DISABLE;
> 		I915_WRITE(DSPCLK_GATE_D, dspclk_gate);
> 	} else if (IS_I965GM(dev)) {
>+		u32 dspclk_gate = OVFUNIT_CLOCK_GATE_DISABLE
>+			| OVBUNIT_CLOCK_GATE_DISABLE		
>+			| OVRUNIT_CLOCK_GATE_DISABLE
>+			| OVCUNIT_CLOCK_GATE_DISABLE
>+			| OVUUNIT_CLOCK_GATE_DISABLE
>+			| OVLUNIT_CLOCK_GATE_DISABLE;
> 		I915_WRITE(RENCLK_GATE_D1, I965_RCC_CLOCK_GATE_DISABLE);
> 		I915_WRITE(RENCLK_GATE_D2, 0);
>-		I915_WRITE(DSPCLK_GATE_D, 0);
>+		I915_WRITE(DSPCLK_GATE_D, dspclk_gate);
> 		I915_WRITE(RAMCLK_GATE_D, 0);
> 		I915_WRITE16(DEUC, 0);
> 	} else if (IS_I965G(dev)) {
>+		u32 dspclk_gate =  I915_READ(DSPCLK_GATE_D);
>+		dspclk_gate |= OVFUNIT_CLOCK_GATE_DISABLE
>+			| OVBUNIT_CLOCK_GATE_DISABLE		
>+			| OVRUNIT_CLOCK_GATE_DISABLE
>+			| OVCUNIT_CLOCK_GATE_DISABLE
>+			| OVUUNIT_CLOCK_GATE_DISABLE
>+			| OVLUNIT_CLOCK_GATE_DISABLE;
>+		I915_WRITE(DSPCLK_GATE_D, dspclk_gate);
> 		I915_WRITE(RENCLK_GATE_D1, I965_RCZ_CLOCK_GATE_DISABLE |
> 		       I965_RCC_CLOCK_GATE_DISABLE |
> 		       I965_RCPB_CLOCK_GATE_DISABLE |

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Attachments on bug 24977: 31474 | 31475 | 31538 | 31549 | 33135 | 35906 | 37666

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