On Thu, Dec 08, 2016 at 11:45:12AM +0000, Mark Rutland wrote: > On Wed, Dec 07, 2016 at 03:04:31PM -0500, Christopher Covington wrote: > > + asm volatile(ALTERNATIVE( > > + "nop \n" > > + "nop \n", > > + "tlbi vmalle1is \n" > > + "dsb ish \n", > > As a general note, perhaps we want a C compatible NOP_ALTERNATIVE() so > that the nop case can be implicitly generated for sequences like this.
It's also worth checking what cpus_have_const_cap() would generate for the default (no workaround required) case. -- Catalin
