Re: [PATCHv5,RESEND 8/8] drm: tegra: Add gr2d device
From: Terje Bergström
Date: Mon Feb 11 2013 - 10:40:31 EST
On 10.02.2013 22:44, Thierry Reding wrote:
> On Sun, Feb 10, 2013 at 04:42:53PM -0800, Terje Bergström wrote:
>> You're right about performance. We already saw quite a bad performance
>> hit with the current firewall, so we'll need to worry about performance
> I guess the additional overhead of looking up in a table vs. an actual
> function being run will be rather small compared to the total overhead
> incurred by having the firewall in the first place.
Yeah, I'll just implement a simple linear table lookup and let's see
what happens. I'll optimize with bitfield if needed.
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