--- /dev/null
+From 3bc980bf19bb62007e923691fa2869ba113be895 Mon Sep 17 00:00:00 2001
+From: Michel Dänzer <michel.daenzer@amd.com>
+Date: Tue, 16 Jun 2015 17:28:16 +0900
+Subject: drm/radeon: Add RADEON_INFO_VA_UNMAP_WORKING query
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From: Michel Dänzer <michel.daenzer@amd.com>
+
+commit 3bc980bf19bb62007e923691fa2869ba113be895 upstream.
+
+This tells userspace that it's safe to use the RADEON_VA_UNMAP operation
+of the DRM_RADEON_GEM_VA ioctl.
+
+Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
+Signed-off-by: Christian König <christian.koenig@amd.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ drivers/gpu/drm/radeon/radeon_kms.c | 3 +++
+ include/uapi/drm/radeon_drm.h | 1 +
+ 2 files changed, 4 insertions(+)
+
+--- a/drivers/gpu/drm/radeon/radeon_kms.c
++++ b/drivers/gpu/drm/radeon/radeon_kms.c
+@@ -547,6 +547,9 @@ static int radeon_info_ioctl(struct drm_
+ else
+ *value = 1;
+ break;
++ case RADEON_INFO_VA_UNMAP_WORKING:
++ *value = true;
++ break;
+ default:
+ DRM_DEBUG_KMS("Invalid request %d\n", info->request);
+ return -EINVAL;
+--- a/include/uapi/drm/radeon_drm.h
++++ b/include/uapi/drm/radeon_drm.h
+@@ -1034,6 +1034,7 @@ struct drm_radeon_cs {
+ #define RADEON_INFO_VRAM_USAGE 0x1e
+ #define RADEON_INFO_GTT_USAGE 0x1f
+ #define RADEON_INFO_ACTIVE_CU_COUNT 0x20
++#define RADEON_INFO_VA_UNMAP_WORKING 0x25
+
+ struct drm_radeon_info {
+ uint32_t request;