On 07/07/2014 22:24, Daniel Vetter wrote:
On Mon, Jul 7, 2014 at 11:16 PM, Jesse Barnes <jbar...@virtuousgeek.org> wrote:
I don't think it's unreasonable to use a macro that checks a global
list for whether to apply a given WA. They'll be scattered all over,
but at least it'll be easy to see:
1) whether we implement a given workaround
and
2) which platforms & steppings it applies to based on the table.
Oh, I agree it's not unreasonable. But I'm kinda begging for the
simple solution since months (years?) and haven't gotten it, while
still getting a steady stream of bug reports and issues. So I've
readjusted my expectations ;-)
If someone delivers the real deal I'll certainly won't reject it.
-Daniel
I am moving bdw workarounds from clock_gating fn to render ring init fn
and testing this before and after gpu reset.
One of the workaround is to disable STC optimization, reg CACHE_MODE_1
bit6 set to 1. I observed that some times after boot this gets reset to
0 (default value) even after applying workarounds; other than
workarounds no one else seems to write to this function.
Any ideas about this behaviour?
regards
Arun
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