From mboxrd@z Thu Jan 1 00:00:00 1970 From: broonie@kernel.org (Mark Brown) Date: Tue, 10 Dec 2013 16:49:07 +0000 Subject: [PATCH v5 1/3] ARM: Introduce atomic MMIO modify In-Reply-To: <1386686497-20335-2-git-send-email-ezequiel.garcia@free-electrons.com> References: <1386686497-20335-1-git-send-email-ezequiel.garcia@free-electrons.com> <1386686497-20335-2-git-send-email-ezequiel.garcia@free-electrons.com> Message-ID: <20131210164907.GA11468@sirena.org.uk> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Dec 10, 2013 at 11:41:35AM -0300, Ezequiel Garcia wrote: > +void atomic_io_modify_relaxed(void __iomem *reg, u32 mask, u32 set) > +{ > + unsigned long flags; > + u32 value; > + > + raw_spin_lock_irqsave(&__io_lock, flags); > + value = readl_relaxed(reg) & ~mask; > + value |= (set & mask); > + writel_relaxed(value, reg); > + raw_spin_unlock_irqrestore(&__io_lock, flags); > +} > +EXPORT_SYMBOL(atomic_io_modify_relaxed); This looks quite generic - why is it in architecture specific code? -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 836 bytes Desc: Digital signature URL: