Hi, Apologize for not respecting the netiquette.
On Tue, 25 Oct 2016, 5:49 p.m. Stefano Stabellini, <sstabell...@kernel.org> wrote: > Hi all, > > the following commit: > > commit 21550029f709072aacf3b90edd574e7d3021b400 > Author: Julien Grall <julien.gr...@citrix.com> > Date: Thu Oct 8 19:23:53 2015 +0100 > > xen/arm: gic-v2: Automatically detect aliased GIC400 > > > removed PLATFORM_QUIRK_GIC_64K_STRIDE and introduced an heuristic to > check whether the two GICC pages have a 64K stride. However the > heuristic needs device tree to report a GICC region size of 128K to work > properly. That is not the case for some versions of XGene (including the > one I am using, kindly provided by CloudLab.us). > > The patch series fixes the issue by reintroducing platform quirks, > PLATFORM_QUIRK_GIC_64K_STRIDE, and forcing GICC size to 128K if > PLATFORM_QUIRK_GIC_64K_STRIDE. > > We should consider this series for 4.8. > The platform you are using has likely a buggy firmware (I cannot find the mail from APM stating that). I am not convinced that we should support a such case. IIRC unmodified Linux will not work properly on those platform (e.g the GIC will be drived as a GICv1). Cheers, -- Julien Grall
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