Merge branch 'master' of git://git.denx.de/u-boot

[oweals/u-boot.git] / common / malloc_simple.c

diff --git a/common/malloc_simple.c b/common/malloc_simple.c
index 9bf1fedd51687a8acd2fbd238ff4c5a5b417d0d5..eabbb70128b375286691489fe2248bb94b1296f1 100644 (file)
--- a/common/malloc_simple.c
+++ b/common/malloc_simple.c
@@ -1,11 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Simple malloc implementation
  *
  * Copyright (c) 2014 Google, Inc
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
+#define LOG_CATEGORY LOGC_ALLOC
+
 #include <common.h>
 #include <malloc.h>
 #include <mapmem.h>
@@ -13,30 +14,48 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-void *malloc_simple(size_t bytes)
+static void *alloc_simple(size_t bytes, int align)
 {
-       ulong new_ptr;
+       ulong addr, new_ptr;
        void *ptr;
 
-       new_ptr = gd->malloc_ptr + bytes;
-       if (new_ptr > gd->malloc_limit)
+       addr = ALIGN(gd->malloc_base + gd->malloc_ptr, align);
+       new_ptr = addr + bytes - gd->malloc_base;
+       log_debug("size=%zx, ptr=%lx, limit=%lx: ", bytes, new_ptr,
+                 gd->malloc_limit);
+       if (new_ptr > gd->malloc_limit) {
+               log_err("alloc space exhausted\n");
                return NULL;
-       ptr = map_sysmem(gd->malloc_base + gd->malloc_ptr, bytes);
+       }
+
+       ptr = map_sysmem(addr, bytes);
        gd->malloc_ptr = ALIGN(new_ptr, sizeof(new_ptr));
+
+       return ptr;
+}
+
+void *malloc_simple(size_t bytes)
+{
+       void *ptr;
+
+       ptr = alloc_simple(bytes, 1);
+       if (!ptr)
+               return ptr;
+
+       log_debug("%lx\n", (ulong)ptr);
+
        return ptr;
 }
 
 void *memalign_simple(size_t align, size_t bytes)
 {
-       ulong addr, new_ptr;
        void *ptr;
 
-       addr = ALIGN(gd->malloc_base + gd->malloc_ptr, align);
-       new_ptr = addr + bytes - gd->malloc_base;
-       if (new_ptr > gd->malloc_limit)
-               return NULL;
-       ptr = map_sysmem(addr, bytes);
-       gd->malloc_ptr = ALIGN(new_ptr, sizeof(new_ptr));
+       ptr = alloc_simple(bytes, align);
+       if (!ptr)
+               return ptr;
+       log_debug("aligned to %lx\n", (ulong)ptr);
+
        return ptr;
 }
 
@@ -47,8 +66,16 @@ void *calloc(size_t nmemb, size_t elem_size)
        void *ptr;
 
        ptr = malloc(size);
+       if (!ptr)
+               return ptr;
        memset(ptr, '\0', size);
 
        return ptr;
 }
 #endif
+
+void malloc_simple_info(void)
+{
+       log_info("malloc_simple: %lx bytes used, %lx remain\n", gd->malloc_ptr,
+                CONFIG_VAL(SYS_MALLOC_F_LEN) - gd->malloc_ptr);
+}