X-Git-Url: https://git.libre-soc.org/?p=mesa.git;a=blobdiff_plain;f=src%2Ffreedreno%2Fregisters%2Fadreno%2Fa6xx.xml;h=15314fbb7365c15ced9a219a9e590ead9cdc777a;hp=63653c2fb4547040602f186f45a3c22f111a8203;hb=c92ae9d3ef89b20e6e45825a8151cd6d1e29ceb3;hpb=db25c18f3338cb4e01e3e6d5793eada6b296c7ed

diff --git a/src/freedreno/registers/adreno/a6xx.xml b/src/freedreno/registers/adreno/a6xx.xml
index 63653c2fb45..15314fbb736 100644
--- a/src/freedreno/registers/adreno/a6xx.xml
+++ b/src/freedreno/registers/adreno/a6xx.xml
@@ -3325,7 +3325,17 @@ to upconvert to 32b float internally?
 	<reg32 offset="0xaa00" name="SP_CS_IBO_COUNT" type="uint"/>
 
 	<!-- always 0x5 ? -->
-	<reg32 offset="0xab00" name="SP_UNKNOWN_AB00"/>
+	<reg32 offset="0xab00" name="SP_MODE_CONTROL">
+	  <!--
+	  When set, half register loads from the constant file will
+	  load a 32-bit value (so hc0.y loads the same value as c0.y)
+	  and implicitly convert it to 16b (f2f16, or u2u16, based on
+	  operand type).  When unset, half register loads from the
+	  constant file will load 16 bits from the packed constant
+	  file (so hc0.y loads the top 16 bits of the value of c0.x)
+	  -->
+		<bitfield name="CONSTANT_DEMOTION_ENABLE" pos="0" type="boolean"/>
+	</reg32>
 
 	<reg32 offset="0xab04" name="SP_FS_CONFIG" type="a6xx_sp_xs_config"/>
 	<reg32 offset="0xab05" name="SP_FS_INSTRLEN" type="uint"/>