[igt-dev] [PATCH i-g-t 03/12] lib/drmtest: Add get_intel_driver() helper

["Zbigniew Kempczyński" <zbigniew.kempczynski@intel.com>]

In libraries which diverges i915 and xe code we might use
is_xe_device() or is_i915_device() to distinct code paths.
But to avoid additional open and string compare we can cache
this information in data structures.

Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
---
 lib/drmtest.c | 10 ++++++++++
 lib/drmtest.h |  1 +
 2 files changed, 11 insertions(+)

diff --git a/lib/drmtest.c b/lib/drmtest.c
index 5cdb0196d3..e1da66c877 100644
--- a/lib/drmtest.c
+++ b/lib/drmtest.c
@@ -151,6 +151,16 @@ bool is_intel_device(int fd)
 	return is_i915_device(fd) || is_xe_device(fd);
 }
 
+enum intel_driver get_intel_driver(int fd)
+{
+	if (is_xe_device(fd))
+		return INTEL_DRIVER_XE;
+	else if (is_i915_device(fd))
+		return INTEL_DRIVER_I915;
+
+	igt_assert_f(0, "Device is not handled by Intel driver\n");
+}
+
 static char _forced_driver[16] = "";
 
 /**
diff --git a/lib/drmtest.h b/lib/drmtest.h
index 9c3ea5d14c..97ab6e759e 100644
--- a/lib/drmtest.h
+++ b/lib/drmtest.h
@@ -124,6 +124,7 @@ bool is_nouveau_device(int fd);
 bool is_vc4_device(int fd);
 bool is_xe_device(int fd);
 bool is_intel_device(int fd);
+enum intel_driver get_intel_driver(int fd);
 
 /**
  * do_or_die:
-- 
2.34.1