drm/xe: Add uapi for dumpable bos

Add the flag XE_VM_BIND_FLAG_DUMPABLE to notify devcoredump that this
mapping should be dumped.

This is not hooked up, but the uapi should be ready before merging.

It's likely easier to dump the contents of the bo's at devcoredump
readout time, so it's better if the bos will stay unmodified after
a hang. The NEEDS_CPU_MAPPING flag is removed as requirement.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240221133024.898315-3-maarten.lankhorst@linux.intel.com
(cherry picked from commit 76a86b58d2b3de31e88acb487ebfa0c3cc7c41d2)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>

diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
index 921ca28d49dd9ae98bda1aee5f795887af08438d..945c89b5e4b50eeeec091b463351a50b5eb9d004 100644 (file)
--- a/drivers/gpu/drm/xe/xe_vm.c
+++ b/drivers/gpu/drm/xe/xe_vm.c
@@ -2722,7 +2722,8 @@ static int vm_bind_ioctl_ops_execute(struct xe_vm *vm,
 
 #define SUPPORTED_FLAGS        \
        (DRM_XE_VM_BIND_FLAG_READONLY | \
-        DRM_XE_VM_BIND_FLAG_IMMEDIATE | DRM_XE_VM_BIND_FLAG_NULL)
+        DRM_XE_VM_BIND_FLAG_IMMEDIATE | DRM_XE_VM_BIND_FLAG_NULL | \
+        DRM_XE_VM_BIND_FLAG_DUMPABLE)
 #define XE_64K_PAGE_MASK 0xffffull
 #define ALL_DRM_XE_SYNCS_FLAGS (DRM_XE_SYNCS_FLAG_WAIT_FOR_OP)
 

diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h
index 6d11ee9e571adfd6504a04c0852a3408da3354ac..4f010949f812f7205895c40b45d6bef67a262e54 100644 (file)
--- a/include/uapi/drm/xe_drm.h
+++ b/include/uapi/drm/xe_drm.h
@@ -931,6 +931,7 @@ struct drm_xe_vm_bind_op {
 #define DRM_XE_VM_BIND_FLAG_READONLY   (1 << 0)
 #define DRM_XE_VM_BIND_FLAG_IMMEDIATE  (1 << 1)
 #define DRM_XE_VM_BIND_FLAG_NULL       (1 << 2)
+#define DRM_XE_VM_BIND_FLAG_DUMPABLE   (1 << 3)
        /** @flags: Bind flags */
        __u32 flags;