Re: PAGE_CACHE_WC strikes again

From: Suresh Siddha
Date: Tue Mar 31 2009 - 21:31:27 EST


On Tue, 2009-03-31 at 18:12 -0700, Jesse Barnes wrote:
> Right, the drm driver code went in before we had pgprot_writecombine.
> Now that it's available we should definitely use it. I'm not sure
> about the set_memory_* routines though; we create io mappings in
> i915_dma.c at init time, and I thought we took care of things in
> i915_gem.c but we may need updates there.

Jesse, yes i915_gem.c seems to be doing the right thing.

What about various fault handlers in drm_vm.c like drm_do_vm_shm_fault()
etc. None of these fault handlers require special attributes like wc/uc
etc?

thanks,
suresh

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