[Intel-gfx] [PATCH i-g-t 3/4] igt/gem_ctx_param_basic: Updated to support scheduler priority interface

[Derek Morton]

From: John Harrison <John.C.Harrison at Intel.com>

The GPU scheduler has added an execution priority level to the context
object. There is an IOCTL interface to allow user apps/libraries to
set this priority. This patch updates the context paramter IOCTL test
to include the new interface.

For: VIZ-1587
Signed-off-by: John Harrison <John.C.Harrison at Intel.com>
---
 lib/ioctl_wrappers.h        |  1 +
 tests/gem_ctx_param_basic.c | 34 +++++++++++++++++++++++++++++++++-
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/lib/ioctl_wrappers.h b/lib/ioctl_wrappers.h
index 4d913c5..f1ef739 100644
--- a/lib/ioctl_wrappers.h
+++ b/lib/ioctl_wrappers.h
@@ -106,6 +106,7 @@ struct local_i915_gem_context_param {
 #define LOCAL_CONTEXT_PARAM_BAN_PERIOD	0x1
 #define LOCAL_CONTEXT_PARAM_NO_ZEROMAP	0x2
 #define LOCAL_CONTEXT_PARAM_GTT_SIZE	0x3
+#define LOCAL_CONTEXT_PARAM_PRIORITY	0x4
 	uint64_t value;
 };
 void gem_context_require_ban_period(int fd);
diff --git a/tests/gem_ctx_param_basic.c b/tests/gem_ctx_param_basic.c
index b75800c..585a1a8 100644
--- a/tests/gem_ctx_param_basic.c
+++ b/tests/gem_ctx_param_basic.c
@@ -147,10 +147,42 @@ igt_main
 		TEST_SUCCESS(LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM);
 	}
 
+	ctx_param.param = LOCAL_CONTEXT_PARAM_PRIORITY;
+
+	igt_subtest("priority-root-set") {
+		ctx_param.context = ctx;
+		ctx_param.value = 2048;
+		TEST_FAIL(LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM, EINVAL);
+		ctx_param.value = -2048;
+		TEST_FAIL(LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM, EINVAL);
+		ctx_param.value = 512;
+		TEST_SUCCESS(LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM);
+		ctx_param.value = -512;
+		TEST_SUCCESS(LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM);
+		ctx_param.value = 0;
+		TEST_SUCCESS(LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM);
+	}
+
+	igt_subtest("priority-non-root-set") {
+		igt_fork(child, 1) {
+			igt_drop_root();
+
+			ctx_param.context = ctx;
+			ctx_param.value = 512;
+			TEST_FAIL(LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM, EPERM);
+			ctx_param.value = -512;
+			TEST_SUCCESS(LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM);
+			ctx_param.value = 0;
+			TEST_SUCCESS(LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM);
+		}
+
+		igt_waitchildren();
+	}
+
 	/* NOTE: This testcase intentionally tests for the next free parameter
 	 * to catch ABI extensions. Don't "fix" this testcase without adding all
 	 * the tests for the new param first. */
-	ctx_param.param = LOCAL_CONTEXT_PARAM_GTT_SIZE + 1;
+	ctx_param.param = LOCAL_CONTEXT_PARAM_PRIORITY + 1;
 
 	igt_subtest("invalid-param-get") {
 		ctx_param.context = ctx;
-- 
1.9.1