[Mesa-dev] [PATCH 1/3] i965: Fix line width on Cherryview.

[Kenneth Graunke]

We just add another field to gen8.xml for the Cherryview line width,
rather than trying to replicate the gymnastics done in the Vulkan
driver to use gen9 SF pack functions.
---
 src/intel/genxml/gen8.xml                     | 1 +
 src/mesa/drivers/dri/i965/genX_state_upload.c | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/src/intel/genxml/gen8.xml b/src/intel/genxml/gen8.xml
index c57ddb41a16..13924665601 100644
--- a/src/intel/genxml/gen8.xml
+++ b/src/intel/genxml/gen8.xml
@@ -2032,6 +2032,7 @@
     <field name="Legacy Global Depth Bias Enable" start="43" end="43" type="bool"/>
     <field name="Statistics Enable" start="42" end="42" type="bool"/>
     <field name="Viewport Transform Enable" start="33" end="33" type="bool"/>
+    <field name="CHV Line Width" start="44" end="61" type="u11.7"/>
     <field name="Line Width" start="82" end="91" type="u3.7"/>
     <field name="Line End Cap Antialiasing Region Width" start="80" end="81" type="uint">
       <value name="0.5 pixels" value="0"/>
diff --git a/src/mesa/drivers/dri/i965/genX_state_upload.c b/src/mesa/drivers/dri/i965/genX_state_upload.c
index ceeacfcdef7..b6aa7c84d1d 100644
--- a/src/mesa/drivers/dri/i965/genX_state_upload.c
+++ b/src/mesa/drivers/dri/i965/genX_state_upload.c
@@ -1379,7 +1379,14 @@ genX(upload_sf)(struct brw_context *brw)
 #endif
 
       /* _NEW_LINE */
+#if GEN_GEN == 8
+      if (brw->is_cherryview)
+         sf.CHVLineWidth = brw_get_line_width_float(brw);
+      else
+         sf.LineWidth = brw_get_line_width_float(brw);
+#else
       sf.LineWidth = brw_get_line_width_float(brw);
+#endif
 
       if (ctx->Line.SmoothFlag) {
          sf.LineEndCapAntialiasingRegionWidth = _10pixels;
-- 
2.12.2