[PATCH v4 4/6] drm/xe/uapi: Define drm_xe_vm_get_property

[Jonathan Cavitt <jonathan.cavitt@intel.com>]

Add initial declarations for the drm_xe_vm_get_property ioctl.

Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
---
 include/uapi/drm/xe_drm.h | 67 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)

diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h
index 76a462fae05f..53617903b5ea 100644
--- a/include/uapi/drm/xe_drm.h
+++ b/include/uapi/drm/xe_drm.h
@@ -81,6 +81,7 @@ extern "C" {
  *  - &DRM_IOCTL_XE_EXEC
  *  - &DRM_IOCTL_XE_WAIT_USER_FENCE
  *  - &DRM_IOCTL_XE_OBSERVATION
+ *  - %DRM_IOCTL_XE_VM_GET_PROPERTY
  */
 
 /*
@@ -102,6 +103,7 @@ extern "C" {
 #define DRM_XE_EXEC			0x09
 #define DRM_XE_WAIT_USER_FENCE		0x0a
 #define DRM_XE_OBSERVATION		0x0b
+#define DRM_XE_VM_GET_PROPERTY		0x0c
 
 /* Must be kept compact -- no holes */
 
@@ -117,6 +119,7 @@ extern "C" {
 #define DRM_IOCTL_XE_EXEC			DRM_IOW(DRM_COMMAND_BASE + DRM_XE_EXEC, struct drm_xe_exec)
 #define DRM_IOCTL_XE_WAIT_USER_FENCE		DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_WAIT_USER_FENCE, struct drm_xe_wait_user_fence)
 #define DRM_IOCTL_XE_OBSERVATION		DRM_IOW(DRM_COMMAND_BASE + DRM_XE_OBSERVATION, struct drm_xe_observation_param)
+#define DRM_IOCTL_XE_VM_GET_PROPERTY		DRM_IOWR(DRM_COMMAND_BASE + DRM_XE_VM_GET_PROPERTY, struct drm_xe_vm_get_property)
 
 /**
  * DOC: Xe IOCTL Extensions
@@ -1166,6 +1169,70 @@ struct drm_xe_vm_bind {
 	__u64 reserved[2];
 };
 
+struct drm_xe_pf {
+	/** @address: Address of the fault, if relevant */
+	__u64 address;
+#define DRM_XE_FAULT_ADDRESS_TYPE_NONE_EXT		0
+#define DRM_XE_FAULT_ADDRESS_TYPE_READ_INVALID_EXT	1
+#define DRM_XE_FAULT_ADDRESS_TYPE_WRITE_INVALID_EXT	2
+	/** @address_type: , if relevant */
+	__u32 address_type;
+	/**
+	 * @address_precision: Precision of faulted address, if relevant.
+	 * Currently only SZ_4K.
+	 */
+	__u32 address_precision;
+	/** @reserved: MBZ */
+	__u64 reserved[3];
+};
+
+/**
+ * struct drm_xe_vm_get_property - Input of &DRM_IOCTL_XE_VM_GET_PROPERTY
+ *
+ * The user provides a VM ID and a property to query to this ioctl,
+ * and the ioctl returns the size of the return value.  Calling the
+ * ioctl again with memory reserved in @data will save the
+ * requested property data to the pointer saved at @data.
+ *
+ * In cases where the requested allocated memory size and the size of
+ * the returned data differ, the number of returned elements will be
+ * saved to @value.
+ *
+ * In the future, some properties may simply be scalar values.  In
+ * such cases, the size field will remain zero, and the value of the
+ * scalar property will be saved to @value.
+ *
+ * The valid properties are:
+ *  - %DRM_XE_VM_GET_PROPERTY_FAULTS : List of all failed pagefaults seen by VM
+ */
+struct drm_xe_vm_get_property {
+	/** @extensions: Pointer to the first extension struct, if any */
+	__u64 extensions;
+
+	/** @vm_id: The ID of the VM to query the properties of */
+	__u32 vm_id;
+
+#define DRM_XE_VM_GET_PROPERTY_FAULTS		0
+	/** @property: The property to get */
+	__u32 property;
+
+	/** @size: Size of returned property @data */
+	__u32 size;
+
+	/** @pad: MBZ */
+	__u32 pad;
+
+	union {
+		/** @value: Return for scalar data values */
+		__u64 value;
+		/** @ptr: Pointer to user structs when required */
+		__u64 ptr;
+	};
+
+	/** @reserved: MBZ */
+	__u64 reserved[2];
+};
+
 /**
  * struct drm_xe_exec_queue_create - Input of &DRM_IOCTL_XE_EXEC_QUEUE_CREATE
  *
-- 
2.43.0