From: Brian Cain <bcain@quicinc.com>

Define TCG overrides for start, stop, wait, resume instructions.

Signed-off-by: Brian Cain <brian.cain@oss.qualcomm.com>
---
 target/hexagon/gen_tcg_sys.h | 18 ++++++++++++++++++
 target/hexagon/helper.h      |  4 ++++
 target/hexagon/op_helper.c   | 20 ++++++++++++++++++++
 3 files changed, 42 insertions(+)

diff --git a/target/hexagon/gen_tcg_sys.h b/target/hexagon/gen_tcg_sys.h
index 642ca3d3ff..942d07b401 100644
--- a/target/hexagon/gen_tcg_sys.h
+++ b/target/hexagon/gen_tcg_sys.h
@@ -63,4 +63,22 @@
         tcg_gen_extrh_i64_i32(ctx->t_sreg_new_value[HEX_SREG_SGP1], tmp); \
     } while (0)
 
+#define fGEN_TCG_Y2_wait(SHORTCODE) \
+    do { \
+        RsV = RsV; \
+        gen_helper_wait(tcg_env, tcg_constant_tl(ctx->pkt->pc)); \
+    } while (0)
+
+#define fGEN_TCG_Y2_resume(SHORTCODE) \
+    gen_helper_resume(tcg_env, RsV)
+
+#define fGEN_TCG_Y2_start(SHORTCODE) \
+    gen_helper_start(tcg_env, RsV)
+
+#define fGEN_TCG_Y2_stop(SHORTCODE) \
+    do { \
+        RsV = RsV; \
+        gen_helper_stop(tcg_env); \
+    } while (0)
+
 #endif
diff --git a/target/hexagon/helper.h b/target/hexagon/helper.h
index 2fe4440ddc..ada520bd52 100644
--- a/target/hexagon/helper.h
+++ b/target/hexagon/helper.h
@@ -124,4 +124,8 @@ DEF_HELPER_2(greg_read_pair, i64, env, i32)
 DEF_HELPER_3(sreg_write, void, env, i32, i32)
 DEF_HELPER_3(sreg_write_pair, void, env, i32, i64)
 DEF_HELPER_3(setprio, void, env, i32, i32)
+DEF_HELPER_2(start, void, env, i32)
+DEF_HELPER_1(stop, void, env)
+DEF_HELPER_2(wait, void, env, i32)
+DEF_HELPER_2(resume, void, env, i32)
 #endif
diff --git a/target/hexagon/op_helper.c b/target/hexagon/op_helper.c
index 575f3fb163..09a5284329 100644
--- a/target/hexagon/op_helper.c
+++ b/target/hexagon/op_helper.c
@@ -1367,6 +1367,26 @@ uint32_t HELPER(iassignr)(CPUHexagonState *env, uint32_t src)
     g_assert_not_reached();
 }
 
+void HELPER(start)(CPUHexagonState *env, uint32_t imask)
+{
+    g_assert_not_reached();
+}
+
+void HELPER(stop)(CPUHexagonState *env)
+{
+    g_assert_not_reached();
+}
+
+void HELPER(wait)(CPUHexagonState *env, target_ulong PC)
+{
+    g_assert_not_reached();
+}
+
+void HELPER(resume)(CPUHexagonState *env, uint32_t mask)
+{
+    g_assert_not_reached();
+}
+
 uint32_t HELPER(getimask)(CPUHexagonState *env, uint32_t tid)
 {
     g_assert_not_reached();
-- 
2.34.1

> -----Original Message-----
> From: Brian Cain <brian.cain@oss.qualcomm.com>
> Sent: Friday, February 28, 2025 11:26 PM
> To: qemu-devel@nongnu.org
> Cc: brian.cain@oss.qualcomm.com; richard.henderson@linaro.org;
> philmd@linaro.org; quic_mathbern@quicinc.com; ale@rev.ng; anjo@rev.ng;
> quic_mliebel@quicinc.com; ltaylorsimpson@gmail.com;
> alex.bennee@linaro.org; quic_mburton@quicinc.com;
> sidneym@quicinc.com; Brian Cain <bcain@quicinc.com>
> Subject: [PATCH 25/38] target/hexagon: Add TCG overrides for thread ctl
> 
> From: Brian Cain <bcain@quicinc.com>
> 
> Define TCG overrides for start, stop, wait, resume instructions.
> 
> Signed-off-by: Brian Cain <brian.cain@oss.qualcomm.com>

Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>