]> git.proxmox.com Git - mirror_ubuntu-hirsute-kernel.git/commit
drm/i915/gen9: fix the watermark res_blocks value
authorPaulo Zanoni <paulo.r.zanoni@intel.com>
Thu, 22 Sep 2016 21:00:33 +0000 (18:00 -0300)
committerPaulo Zanoni <paulo.r.zanoni@intel.com>
Mon, 26 Sep 2016 19:54:34 +0000 (16:54 -0300)
commit75676ed423a6acf9e2b1df52fbc036a51e11fb7a
tree70784dec041d20d26da26c386383ee0ba67d5cdf
parent7a1a8aed67e0a60772defe3f6499eb340da48634
drm/i915/gen9: fix the watermark res_blocks value

We forgot the "res_blocks += y_tile_minimum" that's described on step
V of our documentation.

Again, this should only affect the Y tiling cases.

It looks like the relevant code was introduced in 0fda65680e92, but
there's always the possibility that it matched our specification when
it was introduced, and then the specification changed while the code
stayed the same. So we can't really say this was a regression, but
let's try to add a "Fixes" tag anyway to help backporting.

v2: Try to add a "Fixes" tag (Maarten).

Fixes: 0fda65680e92 ("drm/i915/skl: Update watermarks for Y tiling")
Cc: stable@vger.kernel.org
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Lyude <cpaul@redhat.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1474578035-424-8-git-send-email-paulo.r.zanoni@intel.com
drivers/gpu/drm/i915/intel_pm.c