Attachment 145432 Details for Bug 111749 – Patch fixing the issues

[patch] Patch fixing the issues

0001-drm-i915-Fix-display-corruption-and-abnorma.patch (text/plain), 2.00 KB, created by gaurav.k.singh on 2019-09-19 12:20:52 UTC

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Creator: gaurav.k.singh

Created: 2019-09-19 12:20:52 UTC

Size: 2.00 KB

patch

obsolete

>From a7cdb17e1433930ca80d532f3ea7277c6b8692c8 Mon Sep 17 00:00:00 2001
>From: Gaurav K Singh <gaurav.k.singh@intel.com>
>Date: Wed, 18 Sep 2019 17:03:09 +0530
>Subject: [PATCH] drm/i915: Fix display corruption and abnormal color
>
>On cometlake chromebooks, we are seeing the screen shows several
>large blue horizontal stripes over the top. Also, corruption happens
>when we switch from a chrome browser tab to VT2 mode(by pressing Ctrl+Alt+F2)
>and then back to chrome tab.
>
>Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com>
>---
> drivers/gpu/drm/i915/i915_drv.h  | 10 ++++++++++
> drivers/gpu/drm/i915/intel_fbc.c |  2 ++
> 2 files changed, 12 insertions(+)
>
>diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
>index 9140e7652ab9..06373122c1d9 100644
>--- a/drivers/gpu/drm/i915/i915_drv.h
>+++ b/drivers/gpu/drm/i915/i915_drv.h
>@@ -2492,6 +2492,16 @@ static inline unsigned int i915_sg_segment_size(void)
> #define IS_CNL_WITH_PORT_F(dev_priv)   (IS_CANNONLAKE(dev_priv) && \
> 					(INTEL_DEVID(dev_priv) & 0x0004) == 0x0004)
> 
>+#define IS_CML_GT2(dev_priv) (INTEL_DEVID(dev_priv) == 0x9B41 || \
>+				  INTEL_DEVID(dev_priv) == 0x9BCA || \
>+				  INTEL_DEVID(dev_priv) == 0x9BCB || \
>+				  INTEL_DEVID(dev_priv) == 0x9BCC || \
>+				  INTEL_DEVID(dev_priv) == 0x9BC0 || \
>+				  INTEL_DEVID(dev_priv) == 0x9BC5 || \
>+				  INTEL_DEVID(dev_priv) == 0x9BC8 || \
>+				  INTEL_DEVID(dev_priv) == 0x9BC4 || \
>+				  INTEL_DEVID(dev_priv) == 0x9BC2)
>+
> #define IS_ALPHA_SUPPORT(intel_info) ((intel_info)->is_alpha_support)
> 
> #define SKL_REVID_A0		0x0
>diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
>index 10d447080672..baac44c6a7ed 100644
>--- a/drivers/gpu/drm/i915/intel_fbc.c
>+++ b/drivers/gpu/drm/i915/intel_fbc.c
>@@ -1079,6 +1079,8 @@ void intel_fbc_enable(struct intel_crtc *crtc,
> 		if (fbc->crtc == crtc) {
> 			WARN_ON(!crtc_state->enable_fbc);
> 			WARN_ON(fbc->active);
>+			if (IS_CML_GT2(dev_priv))
>+				intel_wait_for_vblank(dev_priv, crtc->pipe);
> 		}
> 		goto out;
> 	}
>-- 
>1.9.1
>

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Attachments on bug 111749: 145431 | 145432 | 145460 | 145489 | 145509 | 145547 | 145548 | 145549

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