SWDEV-288929 - Update HIP documents

Change-Id: Ic633e6783162a1e697597a1e077d814c23ceaa07

docs/markdown/hip_faq.md

@@ -19,6 +19,7 @@
 - [Can I develop HIP code on an Nvidia CUDA platform?](#can-i-develop-hip-code-on-an-nvidia-cuda-platform)
 - [Can I develop HIP code on an AMD HIP-Clang platform?](#can-i-develop-hip-code-on-an-amd-hip-clang-platform)
 - [What is ROCclr?](#what-is-rocclr)
+- [What is hipamd?](#what-is-hipamd)
 - [Can a HIP binary run on both AMD and Nvidia platforms?](#can-a-hip-binary-run-on-both-amd-and-nvidia-platforms)
 - [On HIP-Clang, can I link HIP code with host code compiled with another compiler such as gcc, icc, or clang?](#on-HIP-Clang-can-i-link-hip-code-with-host-code-compiled-with-another-compiler-such-as-gcc-icc-or-clang-)
 - [HIP detected my platform (hip-clang vs nvcc) incorrectly - what should I do?](#hip-detected-my-platform-hip-clang-vs-nvcc-incorrectly---what-should-i-do)
@@ -180,6 +181,9 @@ NOTE: If HIP_ROCCLR_HOME is set, there is no need to set HIP_CLANG_PATH since hi
 ### What is ROCclr?
 ROCclr (Radeon Open Compute Common Language Runtime) is a virtual device interface that compute runtimes interact with backends such as ROCr on Linux, as well as PAL on Windows.
 
+### What is HIPAMD?
+HIPAMD is a repository branched out from HIP, mainly the implementation for AMD GPU.
+
 ### Can a HIP binary run on both AMD and Nvidia platforms?
 HIP is a source-portable language that can be compiled to run on either AMD or NVIDIA platform. HIP tools don't create a "fat binary" that can run on either platform, however.
 

docs/markdown/hip_programming_guide.md

@@ -45,6 +45,7 @@ else {
 . . .
 }
 ```
+Please note, the managed memory capability check may not be necessary, but if HMM is not supported, then managed malloc will fall back to using system memory and other managed memory API calls will have undefined behavior.
 For more details on managed memory APIs, please refer to the documentation HIP-API.pdf.
 
 ### HIP Stream Memory Operations