[PATCH] igt/gem_ctx_param_basic: Updated to support scheduler priority interface

John.C.Harrison
2016-01-11T18:43:49Z

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@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 e575bb8..bf71bfd 100644
--- a/lib/ioctl_wrappers.h
+++ b/lib/ioctl_wrappers.h
@@ -92,6 +92,7 @@ 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;