On Fri, Aug 11, 2017 at 4:39 PM, Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> wrote: > WC is apparently not an option for CNL+ on GTT here. > Trying to use it we get hard hangs. > > Credits-to: Ben Widawsky <benjamin.widawsky@xxxxxxxxx> forgot to CC relavant people for possible reviews: Cc: Joonas Cc: Imre Cc: Ben > Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_gem_gtt.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c > index 10aa7762d9a6..3019bf509e3d 100644 > --- a/drivers/gpu/drm/i915/i915_gem_gtt.c > +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c > @@ -2717,7 +2717,7 @@ static int ggtt_probe_common(struct i915_ggtt *ggtt, u64 size) > * resort to an uncached mapping. The WC issue is easily caught by the > * readback check when writing GTT PTE entries. > */ > - if (IS_GEN9_LP(dev_priv)) > + if (IS_GEN9_LP(dev_priv) || INTEL_GEN(dev_priv) >= 10) > ggtt->gsm = ioremap_nocache(phys_addr, size); > else > ggtt->gsm = ioremap_wc(phys_addr, size); > -- > 2.13.2 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Rodrigo Vivi Blog: http://blog.vivi.eng.br _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
