From: Dave Airlie <airlied@redhat.com>
Date: Thu, 8 Nov 2018 07:46:22 +0000 (+1000)
Subject: iris: add fs invocations query workaround for broadwell
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=5ae2e5aa94aa04d4285e8e914937dfad55cd3c86;p=mesa.git

iris: add fs invocations query workaround for broadwell
---

diff --git a/src/gallium/drivers/iris/iris_query.c b/src/gallium/drivers/iris/iris_query.c
index 9739369dd74..fcc443e422a 100644
--- a/src/gallium/drivers/iris/iris_query.c
+++ b/src/gallium/drivers/iris/iris_query.c
@@ -812,6 +812,12 @@ iris_get_query_result(struct pipe_context *ctx,
          break;
       case 7:
          result->pipeline_statistics.ps_invocations = q->result;
+         /* Implement the "WaDividePSInvocationCountBy4:HSW,BDW" workaround:
+          * "Invocation counter is 4 times actual.  WA: SW to divide HW reported
+          *  PS Invocations value by 4."
+          */
+         if (screen->devinfo.gen == 8)
+            result->pipeline_statistics.ps_invocations /= 4;
          break;
       case 8:
          result->pipeline_statistics.hs_invocations = q->result;