All of lore.kernel.org
 help / color / mirror / Atom feed
From: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
To: Ben Widawsky <ben@bwidawsk.net>
Cc: intel-gfx@lists.freedesktop.org
Subject: Question about CCS modifier on GLK
Date: Sun, 17 Dec 2017 22:45:13 -0200	[thread overview]
Message-ID: <87y3m07tk6.fsf@collabora.co.uk> (raw)


Hi Ben and list folks,

I've been investigating some CI failures with the kms_ccs testcase in
the GLK hardware.  The original bug is linked below, but there are other
more basic tests failing when trying CCS on pipe C.

https://bugs.freedesktop.org/show_bug.cgi?id=104096

The reason for the failure is very straightforward, the function
skl_check_ccs_aux_surface() in intel_display.c rejects CCS modifiers for
PIPE_C, since that is not supported for SKL, KBL and as far as I can
tell APL as well.

But, since I don't have the specs for GLK yet (it's not available in
01.org), I can't tell if GLK will support it and the kernel must be
changed or if the testcase itself is bogus.  My money is on the later,
but I could use a confirmation before writing down the patch.

In short, does pipe C support render compression (ccs modifier) in glk?

Thanks,

-- 
Gabriel Krisman Bertazi
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

             reply	other threads:[~2017-12-18  0:45 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-18  0:45 Gabriel Krisman Bertazi [this message]
2017-12-18 11:36 ` Question about CCS modifier on GLK Ville Syrjälä
2017-12-20 16:46 ` Ben Widawsky

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87y3m07tk6.fsf@collabora.co.uk \
    --to=krisman@collabora.co.uk \
    --cc=ben@bwidawsk.net \
    --cc=intel-gfx@lists.freedesktop.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.