Mesa (master): Revert "iris/icl: Add WA_2204188704 to disable pixel shader panic dispatch"

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Module: Mesa
Branch: master
Commit: d96cba775413ab357194af96b20c2107a0155bd8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d96cba775413ab357194af96b20c2107a0155bd8

Author: Anuj Phogat <anuj.phogat at gmail.com>
Date:   Wed Jun 26 14:27:01 2019 -0700

Revert "iris/icl: Add WA_2204188704 to disable pixel shader panic dispatch"

SLICE_COMMON_CHICKEN3 is a privileged register not accesible from userspace.
This patch silences a simulator warning about it.

We don't need to add this workaround in linux kernel as the WA description
says it's fixed on latest stepping.

This reverts commit 9c421d6b47e0c5f206959acd68814b63232946be.

Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin at intel.com>

---

 src/gallium/drivers/iris/iris_state.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/src/gallium/drivers/iris/iris_state.c b/src/gallium/drivers/iris/iris_state.c
index cc59fdacde0..14976e33605 100644
--- a/src/gallium/drivers/iris/iris_state.c
+++ b/src/gallium/drivers/iris/iris_state.c
@@ -742,20 +742,12 @@ iris_init_render_context(struct iris_screen *screen,
       }
       iris_emit_lri(batch, HALF_SLICE_CHICKEN7, reg_val);
 
-      /* WA_2204188704: Pixel Shader Panic dispatch must be disabled. */
-      iris_pack_state(GENX(COMMON_SLICE_CHICKEN3), &reg_val, reg) {
-         reg.PSThreadPanicDispatch = 0x3;
-         reg.PSThreadPanicDispatchMask = 0x3;
-      }
-      iris_emit_lri(batch, COMMON_SLICE_CHICKEN3, reg_val);
-
       iris_pack_state(GENX(SLICE_COMMON_ECO_CHICKEN1), &reg_val, reg) {
          reg.StateCacheRedirectToCSSectionEnable = true;
          reg.StateCacheRedirectToCSSectionEnableMask = true;
       }
       iris_emit_lri(batch, SLICE_COMMON_ECO_CHICKEN1, reg_val);
 
-
       // XXX: 3D_MODE?
 #endif