[PATCH v8 1/5] lib/gpu_cmds: add Xe_LP version of emit_vfe_state

[Andrzej Hajda]

In Xe_LP version there is added argument to control EU thread
dispatching mode. For shaders lagacy mode is used.

v2: added commit description
v6: added public function descriptions
v8: removed spare return from void function

Signed-off-by: Andrzej Hajda <andrzej.hajda at intel.com>
Reviewed-by: Dominik Grzegorzek <dominik.grzegorzek at intel.com>
---
 lib/gpu_cmds.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++------
 lib/gpu_cmds.h |  6 ++++++
 2 files changed, 52 insertions(+), 6 deletions(-)

diff --git a/lib/gpu_cmds.c b/lib/gpu_cmds.c
index 2e29cc6c4650..c44b24c79bd1 100644
--- a/lib/gpu_cmds.c
+++ b/lib/gpu_cmds.c
@@ -651,10 +651,10 @@ gen7_emit_vfe_state(struct intel_bb *ibb, uint32_t threads,
 	intel_bb_out(ibb, 0);
 }
 
-void
-gen8_emit_vfe_state(struct intel_bb *ibb, uint32_t threads,
-		    uint32_t urb_entries, uint32_t urb_size,
-		    uint32_t curbe_size)
+static void
+__gen8_emit_vfe_state(struct intel_bb *ibb, uint32_t threads,
+		      uint32_t urb_entries, uint32_t urb_size,
+		      uint32_t curbe_size, bool legacy_mode)
 {
 	intel_bb_out(ibb, GEN7_MEDIA_VFE_STATE | (9 - 2));
 
@@ -662,8 +662,8 @@ gen8_emit_vfe_state(struct intel_bb *ibb, uint32_t threads,
 	intel_bb_out(ibb, 0);
 	intel_bb_out(ibb, 0);
 
-	/* number of threads & urb entries */
-	intel_bb_out(ibb, threads << 16 | urb_entries << 8);
+	/* number of threads & urb entries & eu fusion */
+	intel_bb_out(ibb, threads << 16 | urb_entries << 8 | legacy_mode << 6);
 
 	intel_bb_out(ibb, 0);
 
@@ -676,6 +676,25 @@ gen8_emit_vfe_state(struct intel_bb *ibb, uint32_t threads,
 	intel_bb_out(ibb, 0);
 }
 
+/**
+ * gen8_emit_vfe_state:
+ * @ibb: batchbuffer
+ * @threads: maximum number of threads
+ * @urb_entries: number of URB entries
+ * @urb_size: URB entry allocation size
+ * @curbe_size: CURBE allocation size
+ *
+ * Emits instruction MEDIA_VFE_STATE for Gen8+ which sets Video Front End (VFE)
+ * state.
+ */
+void gen8_emit_vfe_state(struct intel_bb *ibb, uint32_t threads,
+			 uint32_t urb_entries, uint32_t urb_size,
+			 uint32_t curbe_size)
+{
+	__gen8_emit_vfe_state(ibb, threads, urb_entries, urb_size, curbe_size,
+			      false);
+}
+
 void
 gen7_emit_curbe_load(struct intel_bb *ibb, uint32_t curbe_buffer)
 {
@@ -864,6 +883,27 @@ gen7_emit_media_objects(struct intel_bb *ibb,
 			gen_emit_media_object(ibb, x + i * 16, y + j * 16);
 }
 
+/**
+ * xelp_emit_vfe_state:
+ * @ibb: pointer to intel_bb
+ * @threads: maximum number of threads
+ * @urb_entries: number of URB entries
+ * @urb_size: URB entry allocation size
+ * @curbe_size: CURBE allocation size
+ * @legacy_mode: if set, threads are dispatched individually (legacy mode),
+ *     otherwise they are dispatched in sets(fused EU mode)
+ *
+ * Emits instruction MEDIA_VFE_STATE for XeLP which sets Video Front End (VFE)
+ * state.
+ */
+void xelp_emit_vfe_state(struct intel_bb *ibb, uint32_t threads,
+			 uint32_t urb_entries, uint32_t urb_size,
+			 uint32_t curbe_size, bool legacy_mode)
+{
+	__gen8_emit_vfe_state(ibb, threads, urb_entries, urb_size,
+			      curbe_size, legacy_mode);
+}
+
 /*
  * XEHP
  */
diff --git a/lib/gpu_cmds.h b/lib/gpu_cmds.h
index 348c6c9453e9..1b9156a80c7c 100644
--- a/lib/gpu_cmds.h
+++ b/lib/gpu_cmds.h
@@ -81,6 +81,12 @@ void
 gen8_emit_vfe_state(struct intel_bb *ibb, uint32_t threads,
 		    uint32_t urb_entries, uint32_t urb_size,
 		    uint32_t curbe_size);
+
+void
+xelp_emit_vfe_state(struct intel_bb *ibb, uint32_t threads,
+		    uint32_t urb_entries, uint32_t urb_size,
+		    uint32_t curbe_size, bool legacy_mode);
+
 void
 gen7_emit_curbe_load(struct intel_bb *ibb, uint32_t curbe_buffer);
 

-- 
2.34.1