added miner repo

rin/miner/cpuminer/malloc-huge.c

@@ -0,0 +1,36 @@
+#include "malloc-huge.h"
+#include "miner.h"
+
+#define HUGEPAGE_SIZE_2M  (2 * 1024 * 1024)
+
+void *malloc_hugepages( size_t size )
+{
+#if !(defined(MAP_HUGETLB) && defined(MAP_ANON))
+//   applog( LOG_WARNING, "Huge pages not available",size);
+   return NULL;
+#else
+
+   if ( size < HUGEPAGE_MIN_ALLOC )
+   {
+//	   applog( LOG_WARNING, "Block too small for huge pages: %lu bytes",size);
+	   return NULL;
+   }
+
+   const size_t hugepage_mask = (size_t)HUGEPAGE_SIZE_2M - 1;
+   void *p = NULL;
+   int flags =
+   #ifdef MAP_NOCORE
+                MAP_NOCORE |
+   #endif
+		          MAP_HUGETLB | MAP_ANON | MAP_PRIVATE;
+
+   // round size up to next page boundary
+   size = ( size + hugepage_mask ) & (~hugepage_mask);
+   
+   p = mmap( NULL, size, PROT_READ | PROT_WRITE, flags, -1, 0 );
+   if ( p == MAP_FAILED )
+      p = NULL;
+   return p;
+#endif
+}
+