linux/drivers/gpu
Mika Kuoppala e5f10d6385 drm/i915: Fix cmd parser desc matching with masks
Our variety of defined gpu commands have the actual
command id field and possibly length and flags applied.

We did start to apply the mask during initialization of
the cmd descriptors but forgot to also apply it on comparisons.

Fix comparisons in order to properly deny access with
associated commands.

v2: fix lri with correct mask (Chris)

References: 926abff21a ("drm/i915/cmdparser: Ignore Length operands during command matching")
Reported-by: Nicolai Stange <nstange@suse.de>
Cc: stable@vger.kernel.org # v5.4+
Cc: Miroslav Benes <mbenes@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Jon Bloomfield <jon.bloomfield@intel.com>
Cc: Chris Wilson <chris.p.wilson@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20200817195926.12671-1-mika.kuoppala@linux.intel.com
(cherry picked from commit 3b4efa148d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2020-08-25 11:01:34 +03:00
..
drm drm/i915: Fix cmd parser desc matching with masks 2020-08-25 11:01:34 +03:00
host1x gpu: host1x: debug: Dump push buffer state 2020-07-17 16:06:14 +02:00
ipu-v3 gpu: ipu-v3: image-convert: Wait for all EOFs before completing a tile 2020-07-20 15:16:05 +02:00
trace
vga vgaarb: mark vga_tryget static 2020-08-01 11:28:17 +02:00
Makefile