[PATCH i-g-t v2 23/43] lib/igt_device_scan: Allow to find device by sysname

[José Expósito]

The VKMS driver allows to create multiple devices handled by the same
driver but with a different sysname.

In order to differentiate between them, allow to find devices by
sysname.

Signed-off-by: José Expósito <jose.exposito89 at gmail.com>
---
 lib/igt_device_scan.c | 22 ++++++++++++++++++++++
 lib/igt_device_scan.h |  2 ++
 2 files changed, 24 insertions(+)

diff --git a/lib/igt_device_scan.c b/lib/igt_device_scan.c
index 711bedc5c..5cbd347a3 100644
--- a/lib/igt_device_scan.c
+++ b/lib/igt_device_scan.c
@@ -231,6 +231,7 @@ struct igt_device {
 	char *subsystem;
 	char *syspath;
 	char *devnode;
+	char *sysname;
 
 	/* /dev/dri/... paths */
 	char *drm_card;
@@ -664,6 +665,7 @@ static struct igt_device *igt_device_new_from_udev(struct udev_device *dev,
 	idev->syspath = strdup_nullsafe(udev_device_get_syspath(dev));
 	idev->subsystem = strdup_nullsafe(udev_device_get_subsystem(dev));
 	idev->devnode = strdup_nullsafe(udev_device_get_devnode(dev));
+	idev->sysname = strdup_nullsafe(udev_device_get_sysname(dev));
 
 	if (idev->devnode && strstr(idev->devnode, "/dev/dri/card"))
 		idev->drm_card = strdup(idev->devnode);
@@ -2059,6 +2061,26 @@ bool igt_device_card_match_pci(const char *filter,
        return __igt_device_card_match(filter, card, true);
 }
 
+bool igt_device_find_card_by_sysname(const char *sysname,
+				     struct igt_device_card *card)
+{
+	struct igt_device *dev;
+
+	igt_assert(card);
+	igt_assert(sysname);
+
+	memset(card, 0, sizeof(*card));
+
+	igt_list_for_each_entry(dev, &igt_devs.all, link) {
+		if (strcmp(dev->sysname, sysname) == 0) {
+			__copy_dev_to_card(dev, card);
+			return true;
+		}
+	}
+
+	return false;
+}
+
 /**
  * igt_device_get_pretty_name
  * @card: pointer to igt_device_card struct
diff --git a/lib/igt_device_scan.h b/lib/igt_device_scan.h
index 92741fe3c..2a61777b0 100644
--- a/lib/igt_device_scan.h
+++ b/lib/igt_device_scan.h
@@ -92,6 +92,8 @@ bool igt_device_find_first_i915_discrete_card(struct igt_device_card *card);
 bool igt_device_find_integrated_card(struct igt_device_card *card);
 bool igt_device_find_first_xe_discrete_card(struct igt_device_card *card);
 bool igt_device_find_xe_integrated_card(struct igt_device_card *card);
+bool igt_device_find_card_by_sysname(const char *sysname,
+				     struct igt_device_card *card);
 char *igt_device_get_pretty_name(struct igt_device_card *card, bool numeric);
 int igt_open_card(struct igt_device_card *card);
 int igt_open_render(struct igt_device_card *card);
-- 
2.48.1