From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
To: Chris Wilson <chris@chris-wilson.co.uk>,
Mahesh Kumar <mahesh1.kumar@intel.com>,
intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH v3 2/2] drm/i915/skl: distribute DDB based on panel resolution
Date: Tue, 7 Aug 2018 10:35:28 +0200 [thread overview]
Message-ID: <aa83e0d0-0c11-d613-d814-478d35ebfc29@linux.intel.com> (raw)
In-Reply-To: <153313626656.13234.2702705135277840896@skylake-alporthouse-com>
Op 01-08-18 om 17:11 schreef Chris Wilson:
> Quoting Mahesh Kumar (2018-08-01 16:11:13)
>> We distribute DDB equally among all pipes irrespective of display
>> buffer requirement of each pipe. This leads to a situation where high
>> resolution y-tiled display can not be enabled with 2 low resolution
>> displays.
>>
>> Main contributing factor for DDB requirement is width of the display.
>> This patch make changes to distribute ddb based on display width.
>> So display with higher width will get bigger chunk of DDB.
>>
>> Changes Since V1:
>> - pipe_size/ddb_size will not overflow u16 so use appropriate
>> data-types during computation (Chris)
>> Changes Since V2:
>> - avoid redundancy and possible truncation errors (Chris)
>>
>> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107113
>> Cc: raviraj.p.sitaram@intel.com
>> Cc: Chris Wilson <chris@chris-wilson.co.uk>
>> Signed-off-by: Mahesh Kumar <mahesh1.kumar@intel.com>
> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
> -Chris
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
Thanks, reviewed and pushed. :)
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next prev parent reply other threads:[~2018-08-07 8:35 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-30 14:12 [PATCH] drm/i915/skl: distribute DDB based on panel resolution Mahesh Kumar
2018-07-30 15:37 ` ✓ Fi.CI.BAT: success for " Patchwork
2018-07-30 15:38 ` [PATCH] " Chris Wilson
2018-07-31 6:16 ` Kumar, Mahesh
2018-07-31 14:24 ` [PATCH v2 0/2] " Mahesh Kumar
2018-07-31 14:24 ` [PATCH v1 1/2] drm/i915: ddb_size is of u16 type Mahesh Kumar
2018-07-31 21:54 ` Chris Wilson
2018-07-31 14:24 ` [PATCH v2 2/2] drm/i915/skl: distribute DDB based on panel resolution Mahesh Kumar
2018-07-31 21:53 ` Chris Wilson
2018-08-01 15:11 ` [PATCH v3 " Mahesh Kumar
2018-08-01 15:11 ` Chris Wilson
2018-08-07 8:35 ` Maarten Lankhorst [this message]
2018-07-30 17:04 ` ✓ Fi.CI.IGT: success for " Patchwork
2018-07-31 15:13 ` ✓ Fi.CI.BAT: success for drm/i915/skl: distribute DDB based on panel resolution (rev2) Patchwork
2018-07-31 16:51 ` ✓ Fi.CI.IGT: " Patchwork
2018-08-01 15:43 ` ✓ Fi.CI.BAT: success for drm/i915/skl: distribute DDB based on panel resolution (rev3) Patchwork
2018-08-01 17:40 ` ✓ Fi.CI.IGT: " Patchwork
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