drm/i915: Revert "drm/i915/tgl: Wa_1607138340"

This reverts commit 08fff7aeddc9dd72161b4c8fc27fbab12b4b9352.

For some yet unexplained reason not having this improves stability of some
media workloads.

Promise is that the media hang will be root caused properly and in the
meantime absence of this workaround is unlikely to cause problems.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Sudeep Dutt <sudeep.dutt@intel.com>
Cc: Francesco Balestrieri <francesco.balestrieri@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tony Ye <tony.ye@intel.com>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200108161954.29739-1-tvrtko.ursulin@linux.intel.com

diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index bd74b76c640379e39f702248bce10aacd47d001d..2217c09ca22763a89b1d8b79414b687023fa312b 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -1351,10 +1351,6 @@ static u64 execlists_update_context(struct i915_request *rq)
         */
        wmb();
 
-       /* Wa_1607138340:tgl */
-       if (IS_TGL_REVID(rq->i915, TGL_REVID_A0, TGL_REVID_A0))
-               desc |= CTX_DESC_FORCE_RESTORE;
-
        ce->lrc_desc &= ~CTX_DESC_FORCE_RESTORE;
        return desc;
 }