igt/gem_concurrent_blit: Inject hangs before verifying contents

After setting up the copy operations, add a hanging batch. This should
mean that we complete the copy and the compare then races against the
GEM reset. Hopefully, this will catch driver bugs where the target
object is no longer accessible after the hang.

Note: hang injection is disabled until the required kernel interface is
completed. But there are useful additional tests here...

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 33 insertions, 0 deletions

diff --git a/lib/ioctl_wrappers.c b/lib/ioctl_wrappers.c
index dd48d0e6..5bca4559 100644
--- a/lib/ioctl_wrappers.c
+++ b/lib/ioctl_wrappers.c
@@ -1042,3 +1042,36 @@ off_t prime_get_size(int dma_buf_fd)
 	return ret;
 }
 
+int gem_context_get_param(int fd, struct local_i915_gem_context_param *p)
+{
+#define LOCAL_I915_GEM_CONTEXT_GETPARAM       0x34
+#define LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM DRM_IOWR (DRM_COMMAND_BASE + LOCAL_I915_GEM_CONTEXT_GETPARAM, struct local_i915_gem_context_param)
+	if (drmIoctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_GETPARAM, p))
+		return -1;
+
+	errno = 0;
+	return 0;
+}
+
+int gem_context_set_param(int fd, struct local_i915_gem_context_param *p)
+{
+#define LOCAL_I915_GEM_CONTEXT_SETPARAM       0x35
+#define LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM DRM_IOWR (DRM_COMMAND_BASE + LOCAL_I915_GEM_CONTEXT_SETPARAM, struct local_i915_gem_context_param)
+	if (drmIoctl(fd, LOCAL_IOCTL_I915_GEM_CONTEXT_SETPARAM, p))
+		return -1;
+
+	errno = 0;
+	return 0;
+}
+
+int gem_context_has_param(int fd, uint64_t param)
+{
+	struct local_i915_gem_context_param p;
+
+	p.context = 0;
+	p.param = param;
+	p.value = 0;
+	p.size = 0;
+
+	return gem_context_get_param(fd, &p) == 0;
+}