Alexey Brodkin e5e0a65cd2 arc: Add our own implementation of fb_pgprotect() ... During mmaping of frame-buffer pages to user-space fb_protect() is called to set proper page settings. In case of ARC we need to mark pages that are mmaped to user as uncached because of 2 reasons: * Huge amount of data if passing through data cache will thrash cache a lot making cache almost useless for other less traffic hungry processes. * Data written by user in FB will be immediately available for hardware (such as PGU etc) without requirements to flush data cache regularly. Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com> Cc: linux-snps-arc@lists.infradead.org Signed-off-by: Vineet Gupta <vgupta@synopsys.com>		2016-04-07 14:59:09 +05:30
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asm	arc: Add our own implementation of fb_pgprotect()	2016-04-07 14:59:09 +05:30
uapi/asm	ARC: mm: use generic macros _BITUL()/_AC()	2015-10-28 19:31:05 +05:30