[PATCH v3 4/4] mtd: phram: Allow cached mappings

[Miquel Raynal]

On Tue, 2022-04-12 at 13:53:02 UTC, Vincent Whitchurch wrote:
> Currently phram always uses ioremap(), but this is unnecessary when
> normal memory is used.  If the reserved-memory node does not specify the
> no-map property, indicating it should be mapped as system RAM and
> ioremap() cannot be used on it, use a cached mapping using
> memremap(MEMREMAP_WB) instead.
> 
> On one of my systems this improves read performance by ~70%.
> 
> Signed-off-by: Vincent Whitchurch <vincent.whitchurch at axis.com>
> Reported-by: kernel test robot <lkp at intel.com>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next, thanks.

Miquel