On 3/18/25 10:11, Jonathan Cavitt wrote:
Add initial declarations for the drm_xe_vm_get_property ioctl.
v2:
- Expand kernel docs for drm_xe_vm_get_property (Jianxun)
Signed-off-by: Jonathan Cavitt <jonathan.cavitt@xxxxxxxxx>
Cc: Zhang Jianxun <jianxun.zhang@xxxxxxxxx>
---
include/uapi/drm/xe_drm.h | 80 +++++++++++++++++++++++++++++++++++++++
1 file changed, 80 insertions(+)
diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h
index 616916985e3f..ef335471653e 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
@@ -1189,6 +1192,83 @@ struct drm_xe_vm_bind {
__u64 reserved[2];
};
+/** struct xe_vm_fault - Describes faults for %DRM_XE_VM_GET_PROPERTY_FAULTS */
+struct xe_vm_fault {
+ /** @address: Address of the fault */
+ __u64 address;
+#define DRM_XE_FAULT_ADDRESS_TYPE_NONE_EXT 0
Just a question, VK_DEVICE_FAULT_ADDRESS_TYPE_NONE_EXT in Vulkan spec
specifies the address of the fault does not describe a page fault, or an
instruction address. Does this NONE type in KMD mean the same thing?
+#define DRM_XE_FAULT_ADDRESS_TYPE_READ_INVALID_EXT 1
+#define DRM_XE_FAULT_ADDRESS_TYPE_WRITE_INVALID_EXT 2
+ /** @address_type: Type of address access that resulted in fault */
+ __u32 address_type;
+ /** @address_precision: Precision of faulted address */
+ __u32 address_precision;
+ /** @fault_level: fault level of the fault */
+ __u8 fault_level;
+ /** @engine_class: class of engine fault was reported on */
+ __u8 engine_class;
+ /** @engine_instance: instance of engine fault was reported on */
+ __u8 engine_instance;
+ /** @pad: MBZ */
+ __u8 pad[5];
+ /** @reserved: MBZ */
+ __u64 reserved[3];
+};
+
+/**
+ * struct drm_xe_vm_get_property - Input of &DRM_IOCTL_XE_VM_GET_PROPERTY
+ *
+ * The user provides a VM and a property to query among DRM_XE_VM_GET_PROPERTY_*,
+ * and sets the values in the vm_id and property members, respectively. This
+ * determines both the VM to get the property of, as well as the property to
+ * report.
+ *
+ * If size is set to 0, the driver fills it with the required size for the
+ * requested property. The user is expected here to allocate memory for the
+ * property structure and to provide a pointer to the allocated memory using the
+ * data member. For some properties, this may be zero, in which case, the
+ * value of the property will be saved to the value member and size will remain
+ * zero on return.
+ *
+ * If size is not zero, then the IOCTL will attempt to copy the requested
+ * property into the data member.
+ *
+ * The IOCTL will return -ENOENT if the VM could not be identified from the
+ * provided VM ID, or -EINVAL if the IOCTL fails for any other reason, such as
+ * providing an invalid size for the given property or if the property data
+ * could not be copied to the memory allocated to the data member.
+ *
+ * The property member can be:
+ * - %DRM_XE_VM_GET_PROPERTY_FAULTS
+ */
+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: property to get */
+ __u32 property;
+
+ /** @size: Size to allocate for @data */
+ __u32 size;
+
+ /** @pad: MBZ */
+ __u32 pad;
+
+ union {
+ /** @data: Pointer to user-defined array of flexible size and type */
+ __u64 data;
+ /** @value: Return value for scalar queries */
+ __u64 value;
+ };
+
+ /** @reserved: MBZ */
+ __u64 reserved[3];
+};
+
/**
* struct drm_xe_exec_queue_create - Input of &DRM_IOCTL_XE_EXEC_QUEUE_CREATE
*
