libhsakmt: allocate va in host path

Change-Id: I40a4395aca99ea8dfd8ff0ecde64eb2c3840d867
Signed-off-by: Longlong Yao <Longlong.Yao@amd.com>

libhsakmt/src/fmm.c

@@ -1830,6 +1830,10 @@ static void *fmm_allocate_host_gpu(uint32_t gpu_id, uint32_t node_id, void *addr
 	if (mflags.ui32.AQLQueueMemory)
 		size = MemorySizeInBytes * 2;
 
+	/* special case for va allocation without real memory alloc */
+	if (mflags.ui32.OnlyAddress)
+		return fmm_allocate_va(gpu_id, address, size, aperture, alignment, mflags);
+
 	/* Paged memory is allocated as a userptr mapping, non-paged
 	 * memory is allocated from KFD
 	 */

libhsakmt/src/memory.c

@@ -176,7 +176,8 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtAllocMemoryAlign(HSAuint32 PreferredNode,
 	}
 
 	/* GPU allocated system memory */
-	if (!gpu_id || !MemFlags.ui32.NonPaged || hsakmt_zfb_support || MemFlags.ui32.GTTAccess) {
+	if (!gpu_id || !MemFlags.ui32.NonPaged || hsakmt_zfb_support || MemFlags.ui32.GTTAccess
+		|| MemFlags.ui32.OnlyAddress) {
 		/* Backwards compatibility hack: Allocate system memory if app
 		 * asks for paged memory from a GPU node.
 		 */