Messages in this thread | | | Date | Tue, 28 Apr 2015 11:28:53 -0400 (EDT) | From | Nicolas Pitre <> | Subject | Re: simple framebuffer slower by factor of 20, on socfpga (arm) platform |
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On Tue, 28 Apr 2015, Russell King - ARM Linux wrote:
> On Fri, Apr 24, 2015 at 03:46:56PM +0200, Geert Uytterhoeven wrote: > > So please optimize ARM's _memcpy_fromio(), _memcpy_toio(), and _memset_io(). > > That will benefit other drivers on ARM, too. > > That's not going to happen. > > I've had a patch which does that, but people are concerned that it changes > the behaviour of the functions by changing the access size, which could > cause regressions. It seems people are far too worried about that to even > consider trying. :(
What about making the optimized implementation available via kconfig?
Nicolas
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