diff --git a/src/gallium/include/pipe/p_format.h b/src/gallium/include/pipe/p_format.h
index c15c5c8dbfe..3387d3091ab 100644
--- a/src/gallium/include/pipe/p_format.h
+++ b/src/gallium/include/pipe/p_format.h
@@ -295,6 +295,7 @@ enum pipe_format {
    PIPE_FORMAT_NV12,
    PIPE_FORMAT_NV21,
 
+   PIPE_FORMAT_Y8_400_UNORM,
    /* PIPE_FORMAT_Y8_U8_V8_420_UNORM = IYUV */
    /* PIPE_FORMAT_Y8_U8V8_420_UNORM = NV12 */
    PIPE_FORMAT_Y8_U8_V8_422_UNORM,
@@ -635,6 +636,8 @@ pipe_format_to_chroma_format(enum pipe_format format)
       case PIPE_FORMAT_Y8_U8_V8_444_UNORM:
       case PIPE_FORMAT_Y16_U16_V16_444_UNORM:
          return PIPE_VIDEO_CHROMA_FORMAT_444;
+      case PIPE_FORMAT_Y8_400_UNORM:
+         return PIPE_VIDEO_CHROMA_FORMAT_400;
       default:
          return PIPE_VIDEO_CHROMA_FORMAT_NONE;
    }
diff --git a/src/util/format/u_format.csv b/src/util/format/u_format.csv
index ef85be4ae38..689399ebaa1 100644
--- a/src/util/format/u_format.csv
+++ b/src/util/format/u_format.csv
@@ -397,6 +397,7 @@ PIPE_FORMAT_YV16                  , planar3, 1, 1, 1,     ,     ,     ,     , xy
 PIPE_FORMAT_IYUV                  , planar3, 1, 1, 1,     ,     ,     ,     , xyzw, yuv
 PIPE_FORMAT_NV12                  , planar2, 1, 1, 1,     ,     ,     ,     , xyzw, yuv
 PIPE_FORMAT_NV21                  , planar2, 1, 1, 1,     ,     ,     ,     , xyzw, yuv
+PIPE_FORMAT_Y8_400_UNORM          , other  , 1, 1, 1,  un8,     ,     ,     , x001, yuv
 
 # RGB version of NV12 and YV12 for hardware that supports sampling from
 # multiplane textures but needs color-space conversion in the shader.
diff --git a/src/util/format/u_format.h b/src/util/format/u_format.h
index 6946c598bda..643704b890c 100644
--- a/src/util/format/u_format.h
+++ b/src/util/format/u_format.h
@@ -1377,6 +1377,7 @@ util_format_get_plane_format(enum pipe_format format, unsigned plane)
    case PIPE_FORMAT_IYUV:
    case PIPE_FORMAT_Y8_U8_V8_422_UNORM:
    case PIPE_FORMAT_Y8_U8_V8_444_UNORM:
+   case PIPE_FORMAT_Y8_400_UNORM:
       return PIPE_FORMAT_R8_UNORM;
    case PIPE_FORMAT_NV12:
    case PIPE_FORMAT_Y8_U8V8_422_UNORM:
diff --git a/src/util/format/u_format_table.py b/src/util/format/u_format_table.py
index 5adbb9f9594..36992ccd1d3 100644
--- a/src/util/format/u_format_table.py
+++ b/src/util/format/u_format_table.py
@@ -101,6 +101,7 @@ def has_access(format):
         'r8g8_r8b8_unorm',
         'g8r8_b8r8_unorm',
         'g8r8_g8b8_unorm',
+        'y8_400_unorm',
         'y8_u8_v8_422_unorm',
         'y8_u8v8_422_unorm',
         'y8_u8_v8_444_unorm',