[PATCH v3 1/8] lib/xe_query: add helper to get first value of hwconfig

[Andrzej Hajda <andrzej.hajda@intel.com>]

Most hwconfig attributes are single values. Let's simplify querying them.

Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
---
 lib/xe/xe_query.c | 17 +++++++++++++++++
 lib/xe/xe_query.h |  1 +
 2 files changed, 18 insertions(+)

diff --git a/lib/xe/xe_query.c b/lib/xe/xe_query.c
index 8e3e05fd3a7cf949a0bc0f64f06853e96be8c78e..a3fab133e6c4d9f949564b47cc817383bee7a568 100644
--- a/lib/xe/xe_query.c
+++ b/lib/xe/xe_query.c
@@ -1080,6 +1080,23 @@ uint32_t *xe_hwconfig_lookup_value(int fd, enum intel_hwconfig attribute, uint32
 	return NULL;
 }
 
+/**
+ * xe_hwconfig_get_u32:
+ * @fd: xe device fd
+ * @attribute: hwconfig attribute id
+ * @default_value: value to be returned in case attribute is not present
+ *
+ * Returns attribute value, if present, @default_value otherwise.
+ */
+uint32_t xe_hwconfig_get_u32(int fd, enum intel_hwconfig attribute, uint32_t default_value)
+{
+	uint32_t *vals, len;
+
+	vals = xe_hwconfig_lookup_value(fd, attribute, &len);
+
+	return (vals && len > 0) ? *vals : default_value;
+}
+
 /**
  * xe_query_pxp_status:
  * @fd: xe device fd
diff --git a/lib/xe/xe_query.h b/lib/xe/xe_query.h
index bcdfb54b027540b442da95d3c6a3cfd0f8b08dca..4f1c0687133c03b81ba53f95457c55860e5ce194 100644
--- a/lib/xe/xe_query.h
+++ b/lib/xe/xe_query.h
@@ -142,6 +142,7 @@ bool xe_is_main_gt(int fd, int gt);
 uint16_t xe_gt_get_tile_id(int fd, int gt);
 uint16_t xe_tile_get_main_gt_id(int fd, uint8_t tile);
 uint32_t *xe_hwconfig_lookup_value(int fd, enum intel_hwconfig attribute, uint32_t *len);
+uint32_t xe_hwconfig_get_u32(int fd, enum intel_hwconfig attribute, uint32_t default_value);
 int xe_query_pxp_status(int fd);
 int xe_wait_for_pxp_init(int fd);
 

-- 
2.43.0