diff --git a/src/freedreno/ir3/ir3.h b/src/freedreno/ir3/ir3.h
index 775d3e38b21..9e6bed53c8e 100644
--- a/src/freedreno/ir3/ir3.h
+++ b/src/freedreno/ir3/ir3.h
@@ -418,6 +418,8 @@ typedef enum ir3_instruction_flags {
 
    /* Clamp computed LOD using the given minimum. Only for cat5. */
    IR3_INSTR_CLP = BIT(25),
+
+   IR3_INSTR_EOSTSC = BIT(26),
 } ir3_instruction_flags;
 
 struct ir3_instruction {
diff --git a/src/freedreno/ir3/ir3_lexer.l b/src/freedreno/ir3/ir3_lexer.l
index ca793e34436..d1bf8696fcf 100644
--- a/src/freedreno/ir3/ir3_lexer.l
+++ b/src/freedreno/ir3/ir3_lexer.l
@@ -173,6 +173,7 @@ static int parse_reg(const char *str)
 "(sat)"                           return TOKEN(T_SAT);
 "(eolm)"                          return TOKEN(T_EOLM);
 "(eogm)"                          return TOKEN(T_EOGM);
+"(eostsc)"                        return TOKEN(T_EOSTSC);
 "(rpt"[0-7]")"                    ir3_yylval.num = strtol(yytext+4, NULL, 10); return T_RPT;
 "(nop"[0-7]")"                    ir3_yylval.num = strtol(yytext+4, NULL, 10); return T_NOP;
 "("[x]?[y]?[z]?[w]?")"            ir3_yylval.num = parse_wrmask(yytext); return T_WRMASK;
diff --git a/src/freedreno/ir3/ir3_parser.y b/src/freedreno/ir3/ir3_parser.y
index 0f111635100..37a0f6ca8e3 100644
--- a/src/freedreno/ir3/ir3_parser.y
+++ b/src/freedreno/ir3/ir3_parser.y
@@ -131,6 +131,7 @@ static void print_token(FILE *file, int type, YYSTYPE value)
 %token <tok> T_NOP
 %token <tok> T_EOLM
 %token <tok> T_EOGM
+%token <tok> T_EOSTSC
 
 /* category 0: */
 %token <tok> T_OP_NOP
@@ -607,6 +608,7 @@ iflag:             T_SY   { iflags.flags |= IR3_INSTR_SY; }
 |                  T_NOP  { iflags.nop = $1; }
 |                  T_EOLM { iflags.flags |= IR3_INSTR_EOLM; }
 |                  T_EOGM { iflags.flags |= IR3_INSTR_EOGM; }
+|                  T_EOSTSC { iflags.flags |= IR3_INSTR_EOSTSC; }
 
 iflags:
 |                  iflag iflags
diff --git a/src/freedreno/ir3/tests/disasm.c b/src/freedreno/ir3/tests/disasm.c
index 1eda1f4a5ed..2b191a40607 100644
--- a/src/freedreno/ir3/tests/disasm.c
+++ b/src/freedreno/ir3/tests/disasm.c
@@ -71,6 +71,7 @@ static const struct test {
 
    INSTR_7XX(00000003_00000000, "(eolm)(eogm)nop"),
    INSTR_7XX(00000001_00000000, "(eolm)nop"),
+   INSTR_8XX(00001004_00000000, "(ss)(eostsc)nop"),
 
    /* cat1 */
    INSTR_6XX(20244000_00000020, "mov.f32f32 r0.x, c8.x"),
diff --git a/src/freedreno/isa/ir3-cat0.xml b/src/freedreno/isa/ir3-cat0.xml
index b826ec3d23e..9d2182eb22b 100644
--- a/src/freedreno/isa/ir3-cat0.xml
+++ b/src/freedreno/isa/ir3-cat0.xml
@@ -52,13 +52,14 @@ SOFTWARE.
 		<map name="EQ">!!(src->flags &amp; IR3_INSTR_EQ)</map>
 		<map name="EOLM">!!(src->flags &amp; IR3_INSTR_EOLM)</map>
 		<map name="EOGM">!!(src->flags &amp; IR3_INSTR_EOGM)</map>
+		<map name="EOSTSC">!!(src->flags &amp; IR3_INSTR_EOSTSC)</map>
 	</encode>
 </bitset>
 
 
 <bitset name="#instruction-cat0-0src" extends="#instruction-cat0">
 	<display>
-		{SY}{SS}{EQ}{JP}{EOLM}{EOGM}{REPEAT}{NAME}
+		{SY}{SS}{EQ}{JP}{EOLM}{EOGM}{EOSTSC}{REPEAT}{NAME}
 	</display>
 	<field name="EOLM" pos="32" type="bool" display="(eolm)">
 		<doc>
@@ -72,7 +73,8 @@ SOFTWARE.
 			of control flow including preambles. Doesn't seem to affect correctness.
 		</doc>
 	</field>
-	<pattern low="34" high="36">000</pattern>
+	<field name="EOSTSC" pos="34" type="bool" display="(eostsc)"/>
+	<pattern low="35" high="36">00</pattern>
 	<pattern low="37" high="39">000</pattern>  <!-- BRTYPE -->
 	<pattern low="45" high="47">000</pattern>  <!-- src1 -->
 	<pattern low="52" high="54">000</pattern>  <!-- src0 -->