move sboot to the root directory

[open-ath9k-htc-firmware.git] / sboot / magpie_1_1 / sboot / cmnos / allocram / src / cmnos_allocram.c

diff --git a/sboot/magpie_1_1/sboot/cmnos/allocram/src/cmnos_allocram.c b/sboot/magpie_1_1/sboot/cmnos/allocram/src/cmnos_allocram.c
new file mode 100755 (executable)
index 0000000..301cd73
--- /dev/null
+++ b/sboot/magpie_1_1/sboot/cmnos/allocram/src/cmnos_allocram.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2013 Qualcomm Atheros, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted (subject to the limitations in the
+ * disclaimer below) provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the
+ *    distribution.
+ *
+ *  * Neither the name of Qualcomm Atheros nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
+ * GRANTED BY THIS LICENSE.  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
+ * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "sys_cfg.h"
+#include "athos_api.h"
+
+#if SYSTEM_MODULE_ALLOCRAM
+
+/*
+ * Startup time RAM allocation.
+ *
+ * Oddly enough, we allow allocation, but not free.
+ * The central idea is to restrict compile-time RAM demands
+ * of modules to a minimum so that if a module is replaced
+ * at run-time large amounts of RAM are not wasted.
+ *
+ * Addresses returned are A_CACHE_LINE_SIZE aligned.
+ */
+
+LOCAL A_UINT32 allocram_current_addr;
+LOCAL A_UINT32 allocram_remaining_bytes;
+
+LOCAL void *
+cmnos_allocram_init(void *arena_start, A_UINT32 arena_sz)
+{
+    A_UINT32 astart = (A_UINT32)arena_start;
+
+#if defined(__XTENSA__)
+    /*
+     * This hacky line converts from a text or data RAM address
+     * into a data RAM address.  (It's all the same on MIPS, but
+     * text and data are different address spaces on Xtensa.)
+     */
+    //astart = TARG_RAM_ADDRS(TARG_RAM_OFFSET(astart));
+#endif
+
+#if 0
+    if (arena_sz == 0) {
+        /* Default arena_sz to most of available RAM */
+        arena_sz = TARG_RAM_SZ - (A_UINT32)TARG_RAM_OFFSET(astart);
+        arena_sz -= HOST_INTEREST->hi_end_RAM_reserve_sz;
+    }
+#endif
+
+    /* Clear entire area */
+//    A_MEMSET(astart, 0, arena_sz);
+
+    /* Adjust for cache line alignment */
+#if 0    
+    allocram_current_addr = A_ROUND_UP(astart, A_CACHE_LINE_SIZE);
+    arena_sz -= (allocram_current_addr-astart);
+#else
+    allocram_current_addr = astart;
+#endif    
+    allocram_remaining_bytes = arena_sz;
+
+    //A_DCACHE_FLUSH();
+
+    //A_PRINTF("cmnos_allocram_init: start=0x%x size=%d\n",
+    //    allocram_current_addr, allocram_remaining_bytes);
+
+    return NULL; /* Future implementation may return an arena handle */
+}
+
+/*
+ * Allocate nbytes from the arena.  At this point, which_arena should
+ * be set to 0 for the default (and only) arena.  A future allocation
+ * module may support multiple separate arenas.
+ */
+LOCAL void *
+cmnos_allocram(void * which_arena, A_UINT32 nbytes)
+{
+    void *ptr = (void *)allocram_current_addr;
+    //nbytes = A_ROUND_UP(nbytes, A_CACHE_LINE_SIZE);
+    nbytes = A_ROUND_UP(nbytes, 4);
+    if (nbytes <= allocram_remaining_bytes) {
+        allocram_remaining_bytes -= nbytes;
+        allocram_current_addr += nbytes;
+    } else {
+        A_PRINTF("RAM allocation (%d bytes) failed!\n", nbytes);
+        //A_ASSERT(0);
+        adf_os_assert(0);
+    }
+
+    return ptr;
+}
+
+void
+cmnos_allocram_debug(void)
+{
+    A_PRINTF("ALLOCRAM Current Addr 0x%x\n", allocram_current_addr);
+    A_PRINTF("ALLOCRAM Remaining Bytes %d\n", allocram_remaining_bytes);
+}
+
+void
+cmnos_allocram_module_install(struct allocram_api *tbl)
+{
+    tbl->cmnos_allocram_init                 = cmnos_allocram_init;
+    tbl->cmnos_allocram                      = cmnos_allocram;
+    tbl->cmnos_allocram_debug                = cmnos_allocram_debug;
+}
+
+#endif /* SYSTEM_MODULE_ALLOCRAM */
+