[PATCH i-g-t v2 1/8] lib/drmtest: add function for retriving chipset

[Kamil Konieczny]

A few tests uses chipset value for control and checks, so
instead of testing it with, for example, is_intel_driver(),
allow to retrieve it once and give it back to test.

Signed-off-by: Kamil Konieczny <kamil.konieczny at linux.intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda at intel.com>
---
 lib/drmtest.c | 21 +++++++++++++++++++++
 lib/drmtest.h |  2 ++
 2 files changed, 23 insertions(+)

diff --git a/lib/drmtest.c b/lib/drmtest.c
index f8810da43..8ea96ba76 100644
--- a/lib/drmtest.c
+++ b/lib/drmtest.c
@@ -241,6 +241,27 @@ static void modulename_to_chipset(const char *name, unsigned int *chip)
 	}
 }
 
+/**
+ * drm_get_chipset:
+ * @fd: a drm file descriptor
+ *
+ * Returns:
+ * chipset if driver name found in modules[] array, for example: DRIVER_INTEL
+ * DRIVER_ANY if drm device name not known
+ */
+unsigned int drm_get_chipset(int fd)
+{
+	unsigned int chip = DRIVER_ANY;
+	char name[32] = "";
+
+	if (__get_drm_device_name(fd, name, sizeof(name) - 1))
+		return chip;
+
+	modulename_to_chipset(name, &chip);
+
+	return chip;
+}
+
 static const char *chipset_to_str(int chipset)
 {
 	switch (chipset) {
diff --git a/lib/drmtest.h b/lib/drmtest.h
index bbe5f252f..4d9b60882 100644
--- a/lib/drmtest.h
+++ b/lib/drmtest.h
@@ -72,6 +72,8 @@ enum intel_driver {
 
 void __set_forced_driver(const char *name);
 
+unsigned int drm_get_chipset(int fd);
+
 /**
  * ARRAY_SIZE:
  * @arr: static array
-- 
2.43.0