On 24 July 2015 at 12:39, Ilia Mirkin <imirkin@xxxxxxxxxxxx> wrote: > On Thu, Jul 23, 2015 at 10:32 PM, Ben Skeggs <skeggsb@xxxxxxxxx> wrote: >> On 24 July 2015 at 01:20, Hans de Goede <hdegoede@xxxxxxxxxx> wrote: >>> MSI interrupts appear to not work for nv46 based cards. Change the mc >>> subdev oclass for these cards from nv44 to nv4c, the nv4c mc code is >>> identical to the nv44 mc code except that it does not use msi >>> (it does not define a msi_rearm callback). >> I'm fine with this, but it'd be nice to check that the binary driver >> doesn't/can't use MSI on these too (there might be an alternate method >> we need to use). >> >> Would you be able to grab the latest proprietary driver that works on >> nv4x, and do a mmiotrace of it? You *might* need to use "modprobe >> nvidia NVreg_EnableMSI=1", because at some point NVIDIA didn't use it >> by default anywhere. > > AFAIK the blob never used MSI on nv4x. Perhaps we should have just > left it alone... They have support for it, it was just never on by default (for any chipset) during the supported lifetime of nv4x. _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
