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authorWill Deacon <will.deacon@arm.com>2019-02-22 12:59:59 +0000
committerWill Deacon <will.deacon@arm.com>2019-04-08 11:59:47 +0100
commit60ca1e5a200cd294a12907fa36dece4241db4ab8 (patch)
tree2dcd2e666b2b1cad4ce0c80f263cb122bdeebc1b /arch/arm
parentarch: Use asm-generic header for asm/mmiowb.h (diff)
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mmiowb: Hook up mmiowb helpers to spinlocks and generic I/O accessors
Removing explicit calls to mmiowb() from driver code means that we must now call into the generic mmiowb_spin_{lock,unlock}() functions from the core spinlock code. In order to elide barriers following critical sections without any I/O writes, we also hook into the asm-generic I/O routines. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
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