[PATCH i-g-t v2 1/2] drm-uapi/xe: Sync with EU stall sampling uapi updates

[Harish Chegondi]

Align with the following commits:
("drm/xe/uapi: Introduce API for EU stall sampling")
("drm/xe/uapi: Add a device query to get EU stall sampling information")

Link: https://patchwork.freedesktop.org/series/144609/
Signed-off-by: Harish Chegondi <harish.chegondi at intel.com>
---
 include/drm-uapi/xe_drm.h | 74 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/include/drm-uapi/xe_drm.h b/include/drm-uapi/xe_drm.h
index 08e263b3b..f143f2e65 100644
--- a/include/drm-uapi/xe_drm.h
+++ b/include/drm-uapi/xe_drm.h
@@ -700,6 +700,7 @@ struct drm_xe_device_query {
 #define DRM_XE_DEVICE_QUERY_ENGINE_CYCLES	6
 #define DRM_XE_DEVICE_QUERY_UC_FW_VERSION	7
 #define DRM_XE_DEVICE_QUERY_OA_UNITS		8
+#define DRM_XE_DEVICE_QUERY_EU_STALL		10
 	/** @query: The type of data to query */
 	__u32 query;
 
@@ -1397,6 +1398,8 @@ struct drm_xe_wait_user_fence {
 enum drm_xe_observation_type {
 	/** @DRM_XE_OBSERVATION_TYPE_OA: OA observation stream type */
 	DRM_XE_OBSERVATION_TYPE_OA,
+	/** @DRM_XE_OBSERVATION_TYPE_EU_STALL: EU stall sampling observation stream type */
+	DRM_XE_OBSERVATION_TYPE_EU_STALL,
 };
 
 /**
@@ -1729,6 +1732,77 @@ struct drm_xe_oa_stream_info {
 	__u64 reserved[3];
 };
 
+/**
+ * enum drm_xe_eu_stall_property_id - EU stall sampling input property ids.
+ *
+ * These properties are passed to the driver at open as a chain of
+ * @drm_xe_ext_set_property structures with @property set to these
+ * properties' enums and @value set to the corresponding values of these
+ * properties. @drm_xe_user_extension base.name should be set to
+ * @DRM_XE_EU_STALL_EXTENSION_SET_PROPERTY.
+ *
+ * With the file descriptor obtained from open, user space must enable
+ * the EU stall stream fd with @DRM_XE_OBSERVATION_IOCTL_ENABLE before
+ * calling read(). EIO errno from read() indicates HW dropped data
+ * due to full buffer.
+ */
+enum drm_xe_eu_stall_property_id {
+#define DRM_XE_EU_STALL_EXTENSION_SET_PROPERTY		0
+	/**
+	 * @DRM_XE_EU_STALL_PROP_GT_ID: @gt_id of the GT on which
+	 * EU stall data will be captured.
+	 */
+	DRM_XE_EU_STALL_PROP_GT_ID = 1,
+
+	/**
+	 * @DRM_XE_EU_STALL_PROP_SAMPLE_RATE: Sampling rate in
+	 * GPU cycles from @sampling_rates in struct @drm_xe_query_eu_stall
+	 */
+	DRM_XE_EU_STALL_PROP_SAMPLE_RATE,
+
+	/**
+	 * @DRM_XE_EU_STALL_PROP_WAIT_NUM_REPORTS: Minimum number of
+	 * EU stall data reports to be present in the kernel buffer
+	 * before unblocking poll or read that is blocked.
+	 */
+	DRM_XE_EU_STALL_PROP_WAIT_NUM_REPORTS,
+};
+
+/**
+ * struct drm_xe_query_eu_stall - Information about EU stall sampling.
+ *
+ * If a query is made with a struct @drm_xe_device_query where .query
+ * is equal to @DRM_XE_DEVICE_QUERY_EU_STALL, then the reply uses
+ * struct @drm_xe_query_eu_stall in .data.
+ */
+struct drm_xe_query_eu_stall {
+	/** @extensions: Pointer to the first extension struct, if any */
+	__u64 extensions;
+
+	/** @capabilities: EU stall capabilities bit-mask */
+	__u64 capabilities;
+#define DRM_XE_EU_STALL_CAPS_BASE		(1 << 0)
+
+	/** @record_size: size of each EU stall data record */
+	__u64 record_size;
+
+	/** @per_xecore_buf_size: internal per XeCore buffer size */
+	__u64 per_xecore_buf_size;
+
+	/** @reserved: Reserved */
+	__u64 reserved[5];
+
+	/** @num_sampling_rates: Number of sampling rates in @sampling_rates array */
+	__u64 num_sampling_rates;
+
+	/**
+	 * @sampling_rates: Flexible array of sampling rates
+	 * sorted in the fastest to slowest order.
+	 * Sampling rates are specified in GPU clock cycles.
+	 */
+	__u64 sampling_rates[];
+};
+
 #if defined(__cplusplus)
 }
 #endif
-- 
2.48.1