drm/i915: Remove locking from i915_gem_object_prepare_read/write

Browse source

Execbuffer submission will perform its own WW locking, and we
cannot rely on the implicit lock there.

This also makes it clear that the GVT code will get a lockdep splat when
multiple batchbuffer shadows need to be performed in the same instance,
fix that up.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200819140904.1708856-7-maarten.lankhorst@linux.intel.com
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

...

This commit is contained in:

Maarten Lankhorst 2020-08-19 16:08:46 +02:00 • committed by Joonas Lahtinen

parent 80f0b679d6

commit 1af343cdc1

8 changed files with 59 additions and 27 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

20

drivers/gpu/drm/i915/gem/i915_gem_domain.c

View file

13

drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c

View file

1

drivers/gpu/drm/i915/gem/i915_gem_object.h

View file

5

drivers/gpu/drm/i915/gem/selftests/huge_pages.c

View file

14

drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c

View file

12

drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c

View file

1

drivers/gpu/drm/i915/gvt/cmd_parser.c

View file

20

drivers/gpu/drm/i915/i915_gem.c

View file