From: Larry Bassel <larry.bassel@xxxxxxxxxx> Date: Wed, 21 Dec 2016 14:25:49 -0800 > Older sparc64 must have a VAC because there is concern that mmapping fixed > and shared with incorrect align would cause cache aliases. This is not an > issue for sun4v. > > We will enforce the rigid alignment condition only for tlb_type != hypervisor. > > Signed-off-by: Larry Bassel <larry.bassel@xxxxxxxxxx> > Signed-off-by: Bob Picco <bob.picco@xxxxxxxxxx> This is just asking people to write programs that won't work on pre-Niagara machines. I'm not applying this, having a SHMLBA (16K) alignment requirement for shared mmapings is quite reasonable. -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
