From: "Mateo Lozano, Oscar" <oscar.mateo@intel.com>
To: Mika Kuoppala <mika.kuoppala@linux.intel.com>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>
Cc: "ben@bwidawsk.net" <ben@bwidawsk.net>,
"miku@iki.fi" <miku@iki.fi>,
"kristen@linux.intel.com" <kristen@linux.intel.com>
Subject: Re: [PATCH v3 1/2] drm/i915: add render state initialization
Date: Wed, 14 May 2014 10:24:53 +0000 [thread overview]
Message-ID: <92648605EABDA246B775AAB04C95A7A3012EE2FC@IRSMSX103.ger.corp.intel.com> (raw)
In-Reply-To: <1399386627-25287-1-git-send-email-mika.kuoppala@intel.com>
Hi Mika,
> -----Original Message-----
> From: Intel-gfx [mailto:intel-gfx-bounces@lists.freedesktop.org] On Behalf Of
> Mika Kuoppala
> Sent: Tuesday, May 06, 2014 3:30 PM
> To: intel-gfx@lists.freedesktop.org
> Cc: ben@bwidawsk.net; miku@iki.fi; kristen@linux.intel.com
> Subject: [Intel-gfx] [PATCH v3 1/2] drm/i915: add render state initialization
>
> HW guys say that it is not a cool idea to let device go into rc6 without proper 3d
> pipeline state.
>
> For each new uninitialized context, generate a valid null render state to be run
> on context creation.
In Android, we have been seeing a problem in BDW D0 stepping (C0 is fine), in which actual rendering does not happen, even though everything seems to be healthy. The only "tell" seems to be that the pixel shader invocation count does not go up.
I wouldn´t dare say I understand why this fixes our problem, but it clearly does, so feel free to add:
Tested-by: Oscar Mateo <oscar.mateo@intel.com>
to both patches...
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next prev parent reply other threads:[~2014-05-14 10:25 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-06 13:26 [PATCH v2 0/2] render state initialization (bdw rc6) Mika Kuoppala
2014-05-06 13:26 ` [PATCH v2 1/2] drm/i915: add render state initialization Mika Kuoppala
2014-05-06 13:41 ` Chris Wilson
2014-05-06 14:30 ` [PATCH v3 " Mika Kuoppala
2014-05-14 10:24 ` Mateo Lozano, Oscar [this message]
2014-05-14 11:13 ` Damien Lespiau
2014-05-14 11:24 ` Mateo Lozano, Oscar
2014-05-06 14:34 ` [PATCH v2 " Mika Kuoppala
2014-05-06 13:26 ` [PATCH v2 2/2] drm/i915: add null render states for gen6, gen7 and gen8 Mika Kuoppala
2014-05-06 13:39 ` [PATCH] tools/null_state_gen: generate null render state Mika Kuoppala
2014-05-06 13:47 ` Chris Wilson
2014-05-06 14:44 ` Mika Kuoppala
2014-05-09 15:15 ` Damien Lespiau
2014-05-08 14:37 ` Damien Lespiau
2014-05-08 14:43 ` Damien Lespiau
2014-05-08 15:10 ` Mika Kuoppala
2014-05-09 14:46 ` Damien Lespiau
2014-05-14 10:06 ` Damien Lespiau
2014-05-14 10:08 ` [PATCH v2 0/2] render state initialization (bdw rc6) Damien Lespiau
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