libhsakmt: Add memory alloc flag GTTAccess

To allocate GTT memory for MES AQL queue structure, KFD will create GART
mapping for the memory to be accessed by MES.

Change-Id: Iae7b33d1e70861109f1551d3a71dc60dfde9de61
Signed-off-by: Philip Yang <Philip.Yang@amd.com>

include/hsakmttypes.h

@@ -567,7 +567,9 @@ typedef struct _HsaMemFlags
             unsigned int NoAddress:     1; // only do vram allocation, return a handle, not allocate virtual address.
             unsigned int OnlyAddress:   1; // only do virtal address allocation without vram allocation.
             unsigned int ExtendedCoherent: 1;  // system-scope coherence on atomic instructions
-            unsigned int Reserved:     11;
+            unsigned int GTTAccess:     1;  // default = 0; If 1: The caller indicates this memory will be mapped to GART for MES
+					    // KFD will allocate GTT memory with the Preferred_node set as gpu_id for GART mapping
+            unsigned int Reserved:     10;
 
         } ui32;
         HSAuint32 Value;

src/memory.c

@@ -152,7 +152,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtAllocMemory(HSAuint32 PreferredNode,
 	}
 
 	/* GPU allocated system memory */
-	if (!gpu_id || !MemFlags.ui32.NonPaged || zfb_support) {
+	if (!gpu_id || !MemFlags.ui32.NonPaged || zfb_support || MemFlags.ui32.GTTAccess) {
 		/* Backwards compatibility hack: Allocate system memory if app
 		 * asks for paged memory from a GPU node.
 		 */