SWDEV-240800 - Adding initial support for hipDeviceGetP2PAttribute. Some attr support still pending.

Change-Id: I0611aed136270db497dfa374144f6f5e35352a8f

include/hip/hcc_detail/hip_runtime_api.h

@@ -95,6 +95,13 @@ typedef struct ihipCtx_t* hipCtx_t;
 // Note many APIs also use integer deviceIds as an alternative to the device pointer:
 typedef int hipDevice_t;
 
+typedef enum hipDeviceP2PAttr {
+  hipDevP2PAttrPerformanceRank = 0,
+  hipDevP2PAttrAccessSupported,
+  hipDevP2PAttrNativeAtomicSupported,
+  hipDevP2PAttrHipArrayAccessSupported
+} hipDeviceP2PAttr;
+
 typedef struct ihipStream_t* hipStream_t;
 
 #define hipIpcMemLazyEnablePeerAccess 0
@@ -2799,6 +2806,19 @@ hipError_t hipDeviceComputeCapability(int* major, int* minor, hipDevice_t device
  */
 hipError_t hipDeviceGetName(char* name, int len, hipDevice_t device);
 
+
+/**
+ * @brief Returns a value for attr of link between two devices
+ * @param [out] value
+ * @param [in] attr
+ * @param [in] srcDevice
+ * @param [in] dstDevice
+ *
+ * @returns #hipSuccess, #hipErrorInavlidDevice
+ */
+hipError_t hipDeviceGetP2PAttribute(int* value, hipDeviceP2PAttr attr,
+                                    int srcDevice, int dstDevice);
+
 /**
  * @brief Returns a PCI Bus Id string for the device, overloaded to take int device ID.
  * @param [out] pciBusId

include/hip/nvcc_detail/hip_runtime_api.h

@@ -179,6 +179,7 @@ typedef enum cudaSharedMemConfig hipSharedMemConfig;
 typedef CUfunc_cache hipFuncCache;
 typedef CUjit_option hipJitOption;
 typedef CUdevice hipDevice_t;
+typedef enum cudaDeviceP2PAttr hipDeviceP2PAttr;
 typedef CUmodule hipModule_t;
 typedef CUfunction hipFunction_t;
 typedef CUdeviceptr hipDeviceptr_t;
@@ -1606,6 +1607,11 @@ inline static hipError_t hipDeviceGetName(char* name, int len, hipDevice_t devic
     return hipCUResultTohipError(cuDeviceGetName(name, len, device));
 }
 
+inline static hipError_t hipDeviceGetP2PAttribute(int* value, hipDeviceP2PAttr attr,
+                                                  int srcDevice, int dstDevice) {
+    return hipCUDAErrorTohipError(cudaDeviceGetP2PAttribute(value, attr, srcDevice, dstDevice));
+}
+
 inline static hipError_t hipDeviceGetPCIBusId(char* pciBusId, int len, hipDevice_t device) {
     return hipCUDAErrorTohipError(cudaDeviceGetPCIBusId(pciBusId, len, device));
 }