>> Well that is very interesting, you are the first one who reports that SME + >> GFX works in some way. So far we only got negative reports for that. >> >>> There is a 4.16.13 boot dmesg which has no such issue: >>> >>> >>> http://ftp.frugalware.org/pub/other/people/crazy/radeon/dmesg-radeon-SME-ON-kernel-4.16.txt >>> >>> With the setup as is booting 4.16.x works , while 4.17 trows the errors. >> >> >> Please do the bisect if the patch I've mentioned above doesn't help. > > Ok done.. bisect points to: > > b468620f2a1dfdcfddfd6fa54367b8bcc1b51248 is the first bad commit > commit b468620f2a1dfdcfddfd6fa54367b8bcc1b51248 > Author: Christoph Hellwig <[email protected]> > Date: Mon Mar 19 11:38:19 2018 +0100 > > iommu/amd_iommu: Use CONFIG_DMA_DIRECT_OPS=y and dma_direct_{alloc,free}() > > This cleans up the code a lot by removing duplicate logic. > > Tested-by: Tom Lendacky <[email protected]> > Tested-by: Joerg Roedel <[email protected]> > Signed-off-by: Christoph Hellwig <[email protected]> > Reviewed-by: Thomas Gleixner <[email protected]> > Acked-by: Joerg Roedel <[email protected]> > Cc: David Woodhouse <[email protected]> > Cc: Joerg Roedel <[email protected]> > Cc: Jon Mason <[email protected]> > Cc: Konrad Rzeszutek Wilk <[email protected]> > Cc: Linus Torvalds <[email protected]> > Cc: Muli Ben-Yehuda <[email protected]> > Cc: Peter Zijlstra <[email protected]> > Cc: [email protected] > Link: http://lkml.kernel.org/r/[email protected] > Signed-off-by: Ingo Molnar <[email protected]> > > > I'll try to revert this once I'm home.
I can confirm reverting b468620f2a1dfdcfddfd6fa54367b8bcc1b51248 fixes that issue for me. The GPU is working fine with SME enabled. Now with working GPU :) I can also confirm performance is back to normal without doing any other workarounds. The only app still acting up a bit is Firefox , just minor frame drops, but nothing to bad. ( probably an Firefox bug too ) crhomium/chrome is fine .. even with 10 tabs open , each one playing an video on youtube no glitches at all. Desktop is also fine now, could not find anything wrong. BR _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
