Module: Mesa
Branch: staging/19.1
Commit: f7c0ca6d38dc23fbc45593072877b2406217987e
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=f7c0ca6d38dc23fbc45593072877b2406217987e

Author: Kenneth Graunke <[email protected]>
Date:   Fri May 10 14:15:53 2019 -0700

iris: Use full ways for L3 cache setup on Icelake.

Anuj fixed this in i965 and anv, but the fix never landed in iris.
Fixes tessellation corruption on Icelake.  Thanks to Rafael for
bisecting this and tracking it down.

Fixes: d0996d5fab6 iris: Emit default L3 config for the render pipeline
Reviewed-by: Rafael Antognolli <[email protected]>
(cherry picked from commit 72ccefb5298203c6e1c4b40b60b5dd356900ad47)

---

 src/gallium/drivers/iris/iris_state.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gallium/drivers/iris/iris_state.c 
b/src/gallium/drivers/iris/iris_state.c
index 677fa5aba53..332fda0dbf0 100644
--- a/src/gallium/drivers/iris/iris_state.c
+++ b/src/gallium/drivers/iris/iris_state.c
@@ -631,6 +631,7 @@ iris_emit_l3_config(struct iris_batch *batch, const struct 
gen_l3_config *cfg,
        * desirable behavior.
        */
       reg.ErrorDetectionBehaviorControl = true;
+      reg.UseFullWays = true;
 #endif
       reg.URBAllocation = cfg->n[GEN_L3P_URB];
       reg.ROAllocation = cfg->n[GEN_L3P_RO];

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