]> git.baikalelectronics.ru Git - kernel.git/commit
drm/i915/lrc: Update PDPx registers with lri commands
authorMichel Thierry <michel.thierry@intel.com>
Fri, 26 Jun 2015 12:46:14 +0000 (13:46 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Fri, 26 Jun 2015 16:33:51 +0000 (18:33 +0200)
commitceec5e9abfe8bbd6a35b25f8d4c812206111defe
treeb4253165e9a5fb4dd568f5510d1208771421d94e
parent671007b5d1b2d82e180598e09f8d28fdae7a599f
drm/i915/lrc: Update PDPx registers with lri commands

A safer way to update the PDPx registers is sending lri commands, added
in the ring before the batchbuffer start. Otherwise, the ctx must be idle
before trying to change anything (but the ring-tail) in the ctx image. An
example where the ctx won't be idle is lite-restore.

This patch depends on 1830322c6 ("drm/i915/gtt: Mark TLBS dirty for gen8+").

v2: Combine lri writes (and save 8 commands). (Mika)
v3: Rebase after ring/req changes, and removed references to deprecated patches.

Cc: Dave Gordon <david.s.gordon@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Michel Thierry <michel.thierry@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_lrc.c