Hi JP,

add function to create exec queue with class and gt id

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
---
 lib/xe/xe_ioctl.c | 20 ++++++++++++++++++++
 lib/xe/xe_ioctl.h |  2 ++
 2 files changed, 22 insertions(+)

diff --git a/lib/xe/xe_ioctl.c b/lib/xe/xe_ioctl.c
index ea3f2fcaa..d56c58053 100644
--- a/lib/xe/xe_ioctl.c
+++ b/lib/xe/xe_ioctl.c
@@ -503,6 +503,26 @@ uint32_t xe_exec_queue_create_class(int fd, uint32_t vm, uint16_t class)
 	return create.exec_queue_id;
 }
 
+uint32_t xe_exec_queue_create_class_gt(int fd, uint32_t vm, uint16_t class,
+				       uint16_t gt_id)
+{

Imho, Invalid class values needs to be handle with valid reason message.

DRM_XE_ENGINE_CLASS_VM_BIND is kernel only class. It does not represent an actual hardware engine and is reserved for kernel-internal VM bind queue management.

+	struct drm_xe_engine_class_instance instance = {
+		.engine_class = class,
+		.engine_instance = 0,
+		.gt_id = gt_id,
+	};
+	struct drm_xe_exec_queue_create create = {
+		.vm_id = vm,
+		.width = 1,
+		.num_placements = 1,
+		.instances = to_user_pointer(&instance),
+	};
+
+	igt_assert_eq(igt_ioctl(fd, DRM_IOCTL_XE_EXEC_QUEUE_CREATE, &create), 0);
+
+	return create.exec_queue_id;
+}
+
 int __xe_exec_queue_set_property(int fd, uint32_t exec_queue, uint32_t property,
 				 uint64_t value)
 {
diff --git a/lib/xe/xe_ioctl.h b/lib/xe/xe_ioctl.h
index b62d259fd..f2164e640 100644
--- a/lib/xe/xe_ioctl.h
+++ b/lib/xe/xe_ioctl.h
@@ -83,6 +83,8 @@ uint32_t xe_exec_queue_create(int fd, uint32_t vm,
 			  uint64_t ext);
 uint32_t xe_bind_exec_queue_create(int fd, uint32_t vm, uint64_t ext);
 uint32_t xe_exec_queue_create_class(int fd, uint32_t vm, uint16_t class);
+uint32_t xe_exec_queue_create_class_gt(int fd, uint32_t vm, uint16_t class,
+				       uint16_t gt_id);
 int __xe_exec_queue_set_property(int fd, uint32_t exec_queue, uint32_t property,
 				 uint64_t value);
 void xe_exec_queue_set_property(int fd, uint32_t exec_queue, uint32_t property,