drm/amdgpu: add count field for the SDMA NOP packet v2

This is added to support the burst NOP

v2: squash the typo fix

Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/cikd.h b/drivers/gpu/drm/amd/amdgpu/cikd.h
index a3e3dfa..7f6d457 100644
--- a/drivers/gpu/drm/amd/amdgpu/cikd.h
+++ b/drivers/gpu/drm/amd/amdgpu/cikd.h
@@ -487,6 +487,7 @@
 					 (((op) & 0xFF) << 0))
 /* sDMA opcodes */
 #define	SDMA_OPCODE_NOP					  0
+#	define SDMA_NOP_COUNT(x)			  (((x) & 0x3FFF) << 16)
 #define	SDMA_OPCODE_COPY				  1
 #       define SDMA_COPY_SUB_OPCODE_LINEAR                0
 #       define SDMA_COPY_SUB_OPCODE_TILED                 1