Workaround: make mmap memory resident for gfx902

Change-Id: I5f90f316740f7995d54cb083a6d7e05bc4e2966e Signed-off-by: Yong Zhao <yong.zhao@amd.com> [ROCm/ROCR-Runtime commit: 716755b1de]
2017-11-29 11:48:10 -05:00
parent 738a69caeb
commit cbcae4eecc
2 changed files with 7 additions and 0 deletions
@@ -933,6 +933,8 @@ void *fmm_allocate_scratch(uint32_t gpu_id, uint64_t MemorySizeInBytes)
 			munmap(aligned_end,
 			       VOID_PTRS_SUB(padded_end, aligned_end));
 		mem = aligned_start;
+
+		memset(mem, 0, aligned_size);
 	}

 	/* Remember scratch backing aperture for later */
@@ -1131,6 +1133,8 @@ static void *fmm_allocate_host_cpu(uint64_t MemorySizeInBytes,
 	if (mem == MAP_FAILED)
 		return NULL;

+	memset(mem, 0, MemorySizeInBytes);
+
 	pthread_mutex_lock(&cpuvm_aperture.fmm_mutex);
 	vm_obj = aperture_allocate_object(&cpuvm_aperture, mem, 0,
 				      MemorySizeInBytes, flags.Value);
@@ -323,6 +323,9 @@ static void *allocate_exec_aligned_memory_cpu(uint32_t size)

 	if (ptr == MAP_FAILED)
 		return NULL;
+
+	memset(ptr, 0, size);
+
 	return ptr;
 }