[Intel-gfx] [PATCH 1/2] igt/gem_ctx_param_basic: Updated to support scheduler priority interface

[John.C.Harrison at Intel.com]

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 | 108 +++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 108 insertions(+), 1 deletion(-)

diff --git a/lib/ioctl_wrappers.h b/lib/ioctl_wrappers.h
index 8fe35b0..00cf324 100644
--- a/lib/ioctl_wrappers.h
+++ b/lib/ioctl_wrappers.h
@@ -109,6 +109,7 @@ 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..1a10c01 100644
--- a/tests/gem_ctx_param_basic.c
+++ b/tests/gem_ctx_param_basic.c
@@ -147,10 +147,116 @@ 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-root-set-egl") {
+		drm_intel_context *context;
+		drm_intel_bufmgr *bufmgr;
+		int ret, priority;
+
+		bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
+		context = drm_intel_gem_context_create(bufmgr);
+		igt_require(context);
+
+		ret = drm_intel_gem_context_set_priority(context, DRM_INTEL_CTX_SET_PRIORITY_EGL_LOW);
+		igt_assert_eq(ret, 0);
+		ret = drm_intel_gem_context_get_priority(context, &priority);
+		igt_assert_eq(ret, 0);
+		igt_assert_eq(priority, -500);
+
+		ret = drm_intel_gem_context_set_priority(context, DRM_INTEL_CTX_SET_PRIORITY_EGL_MEDIUM);
+		igt_assert_eq(ret, 0);
+		ret = drm_intel_gem_context_get_priority(context, &priority);
+		igt_assert_eq(ret, 0);
+		igt_assert_eq(priority, 0);
+
+		ret = drm_intel_gem_context_set_priority(context, DRM_INTEL_CTX_SET_PRIORITY_EGL_HIGH);
+		igt_assert_eq(ret, 0);
+		ret = drm_intel_gem_context_get_priority(context, &priority);
+		igt_assert_eq(ret, 0);
+		igt_assert_eq(priority, 500);
+
+		drm_intel_gem_context_destroy(context);
+		drm_intel_bufmgr_destroy(bufmgr);
+	}
+
+	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();
+	}
+
+	igt_subtest("priority-non-root-set-egl") {
+		igt_fork(child, 1) {
+			igt_drop_root();
+
+			drm_intel_context *context;
+			drm_intel_bufmgr *bufmgr;
+			int ret, priority;
+
+			bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
+			context = drm_intel_gem_context_create(bufmgr);
+			igt_require(context);
+
+			ret = drm_intel_gem_context_set_priority(context, DRM_INTEL_CTX_SET_PRIORITY_EGL_LOW);
+			igt_assert_eq(ret, 0);
+			ret = drm_intel_gem_context_get_priority(context, &priority);
+			igt_assert_eq(ret, 0);
+			igt_assert_eq(priority, -500);
+
+			ret = drm_intel_gem_context_set_priority(context, DRM_INTEL_CTX_SET_PRIORITY_EGL_MEDIUM);
+			igt_assert_eq(ret, 0);
+			ret = drm_intel_gem_context_get_priority(context, &priority);
+			igt_assert_eq(ret, 0);
+			igt_assert_eq(priority, 0);
+
+			ret = drm_intel_gem_context_set_priority(context, DRM_INTEL_CTX_SET_PRIORITY_EGL_LOW);
+			igt_assert_eq(ret, 0);
+			ret = drm_intel_gem_context_get_priority(context, &priority);
+			igt_assert_eq(ret, 0);
+			igt_assert_eq(priority, -500);
+
+			ret = drm_intel_gem_context_set_priority(context, DRM_INTEL_CTX_SET_PRIORITY_EGL_HIGH);
+			igt_assert_eq(ret, -EPERM);
+			ret = drm_intel_gem_context_get_priority(context, &priority);
+			igt_assert_eq(ret, 0);
+			igt_assert_eq(priority, -500);
+
+			drm_intel_gem_context_destroy(context);
+			drm_intel_bufmgr_destroy(bufmgr);
+		}
+
+		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