From: Scott D Phillips <scott.d.phillips@intel.com>
To: Jordan Justen <jordan.l.justen@intel.com>,
IGT GPU Tools <igt-dev@lists.freedesktop.org>
Cc: Kenneth Graunke <kenneth@whitecape.org>
Subject: Re: [igt-dev] [PATCH i-g-t 3/3] tools/aubdump: For gen10+ support addresses up to 4GB
Date: Wed, 07 Mar 2018 08:21:47 -0800 [thread overview]
Message-ID: <877eqnvotg.fsf@intel.com> (raw)
In-Reply-To: <20180307083121.2955-3-jordan.l.justen@intel.com>
Jordan Justen <jordan.l.justen@intel.com> writes:
> For gen10, we now add mappings for buffers as they are needed.
>
> Instead of doing this dynamically, we could always map the entire 4GB.
> With 4KB pages, the tables would take up 8MB in every AUB. AUBs are
> often quite huge compared to 8MB, but they can also be just a few
> hundred KB.
>
> This should allow the AUB to create up to about 4GB of allocated
> buffers, whereas before we were limited to about 64MB.
>
> While it is unlikely that we'll try to capture AUBs that generate
> buffers up to 4GB in size, this change also should allow pinned
> buffers to be used anywhere in the first 4GB. (I tested a pinned
> buffer at 0xf0000000.)
>
> Cc: Scott D Phillips <scott.d.phillips@intel.com>
> Cc: Kenneth Graunke <kenneth@whitecape.org>
> Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
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next prev parent reply other threads:[~2018-03-07 16:21 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-07 8:31 [igt-dev] [PATCH i-g-t 1/3] tools/aubdump: Add gen8_map_range Jordan Justen
2018-03-07 8:31 ` [igt-dev] [PATCH i-g-t 2/3] tools/aubdump: Add bitmap to track gtt pages that have been mapped Jordan Justen
2018-03-07 16:20 ` Scott D Phillips
2018-03-07 8:31 ` [igt-dev] [PATCH i-g-t 3/3] tools/aubdump: For gen10+ support addresses up to 4GB Jordan Justen
2018-03-07 8:42 ` Jordan Justen
2018-03-07 16:21 ` Scott D Phillips [this message]
2018-03-07 8:43 ` [igt-dev] ✗ Fi.CI.BAT: failure for series starting with [i-g-t,1/3] tools/aubdump: Add gen8_map_range Patchwork
2018-03-07 16:09 ` [igt-dev] [PATCH i-g-t 1/3] " Scott D Phillips
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