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

diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
index 23a44ef85aa4bd92dbe24f2c99a8e54b8098797e..08462f80f000efb0c1dc12be12b0a80895a6c82f 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 dce06de592d055eb82e7e47bb1abc03d73af2d4b..2fefec9c0e946c947c8d98060c8301858ecbb936 100644 (file)
--- a/include/uapi/drm/xe_drm.h
+++ b/include/uapi/drm/xe_drm.h
@@ -961,6 +961,7 @@ 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;