On Tue, Feb 23, 2021 at 02:39:11AM +0900, Hector Martin wrote: > On 20/02/2021 03.26, Mark Rutland wrote: > > On Sat, Feb 20, 2021 at 02:25:30AM +0900, Hector Martin wrote: > > > Apple SoCs (A11 and newer) have some interrupt sources hardwired to the > > > FIQ line. We implement support for this by simply treating IRQs and FIQs > > > the same way in the interrupt vectors. > > > > > > To support these systems, the FIQ mask bit needs to be kept in sync with > > > the IRQ mask bit, so both kinds of exceptions are masked together. No > > > other platforms should be delivering FIQ exceptions right now, and we > > > already unmask FIQ in normal process context, so this should not have an > > > effect on other systems - if spurious FIQs were arriving, they would > > > already panic the kernel. > > > > This looks good to me; I've picked this up and pushed out my arm64/fiq > > branch [1,2] incorporating this, tagged as arm64-fiq-20210219. > > > > I'll give this version a few days to gather comments before I post a v2. > > > > [1] git://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64/fiq > > [2] > > https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/log/?h=arm64/fiqA > > Thanks! Any chance you can do a rebase on top of torvalds/master? Since > Marc's nVHE changes went in, we're going to need to add a workaround patch > for the M1's lack of nVHE mode, which is going to be in the next version of > my M1 bringup series - but right now that would involve telling people to > merge two trees to build a base to apply it on, which is sub-optimal.
I generally try to base on a stable tag/commit, so I'd prefer to avoid rebasing the development branch until rc1 if possible. I've pushed out a new arm64-fiq-mainline-20210222 tag rebased atop torvalds/master: git://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git arm64-fiq-mainline-20210222 https://git.kernel.org/pub/scm/linux/kernel/git/mark/linux.git/tag/?h=arm64-fiq-mainline-20210222 ... leaving the main branch atop v5.11. Is that good enough for now? If that's painful for development I can shuffle the main branch along too. Thanks, Mark.