drm/i915/cmdparser: Check for SKIP descriptors first

If the command descriptor says to skip it, ignore checking for anyother
other conflict.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160818161718.27187-37-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/i915_cmd_parser.c b/drivers/gpu/drm/i915/i915_cmd_parser.c
index 558077a..690aaf5 100644 (file)
--- a/drivers/gpu/drm/i915/i915_cmd_parser.c
+++ b/drivers/gpu/drm/i915/i915_cmd_parser.c
@@ -1046,6 +1046,9 @@ static bool check_cmd(const struct intel_engine_cs *engine,
                      const bool is_master,
                      bool *oacontrol_set)
 {
+       if (desc->flags & CMD_DESC_SKIP)
+               return true;
+
        if (desc->flags & CMD_DESC_REJECT) {
                DRM_DEBUG_DRIVER("CMD: Rejected command: 0x%08X\n", *cmd);
                return false;