On Tue, Nov 17, 2020 at 02:31:54PM +0100, Thomas Zimmermann wrote: > By default, SHMEM GEM helpers map pages using writecombine. Only a few > drivers require this setting. Others revert it to default mappings > flags. Some could benefit from caching, but don't care. > > Unify the behaviour by switching the SHMEM GEM code to use cached > mappings (i.e., PAGE_KERNEL actually); just like regular shmem memory > does. The 3 drivers that require write combining explicitly select it > during GEM object creation. > > The exception is dma-buf imported pages, which are always mapped > using writecombine mode.
For the whole series: Acked-by: Maxime Ripard <mrip...@kernel.org> Maxime
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