From f45c2eb542e13660abb06dbfdd68bee499518b47 Mon Sep 17 00:00:00 2001
From: foreman <dl.constructicon@amd.com>
Date: Wed, 7 Mar 2018 20:03:36 -0500
Subject: [PATCH] P4 to Git Change 1524135 by cpaquot@cpaquot-ocl-lc-lnx on
 2018/03/07 19:52:00

	SWDEV-145570 - [HIP] Hip Rearchitecture
	Implemented hipHostAlloc

Affected files ...

... //depot/stg/opencl/drivers/opencl/api/hip/hip_memory.cpp#5 edit


[ROCm/clr commit: 336d1e589c4536972e1a7aaac9a2bdbea39796ea]
---
 projects/clr/hipamd/api/hip/hip_memory.cpp | 23 ++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/projects/clr/hipamd/api/hip/hip_memory.cpp b/projects/clr/hipamd/api/hip/hip_memory.cpp
index 0911f61e4c..ddebc8623c 100644
--- a/projects/clr/hipamd/api/hip/hip_memory.cpp
+++ b/projects/clr/hipamd/api/hip/hip_memory.cpp
@@ -58,13 +58,32 @@ hipError_t hipHostMalloc(void** ptr, size_t sizeBytes, unsigned int flags)
 {
   HIP_INIT_API(ptr, sizeBytes, flags);
 
-  assert(0 && "Unimplemented");
+  if (sizeBytes == 0) {
+    *ptr = nullptr;
+    return hipSuccess;
+  }
+  else if (!ptr) {
+    return hipErrorInvalidValue;
+  }
 
-  return hipErrorUnknown;
+  if (g_context->devices()[0]->info().maxMemAllocSize_ < sizeBytes) {
+    return hipErrorOutOfMemory;
+  }
+
+  *ptr = amd::SvmBuffer::malloc(*g_context, 0, sizeBytes, g_context->devices()[0]->info().memBaseAddrAlign_);
+  if (!*ptr) {
+    return hipErrorOutOfMemory;
+  }
+
+  return hipSuccess;
 }
 
 hipError_t hipFree(void* ptr)
 {
+  if (amd::SvmBuffer::malloced(ptr)) {
+    amd::SvmBuffer::free(*g_context, ptr);
+    return hipSuccess;
+  }
   if (!is_valid(reinterpret_cast<cl_mem>(ptr))) {
     return hipErrorInvalidValue;
   }