+/*
+ * PicoDrive
+ * Copyright (C) 2009,2010 notaz
+ *
+ * This work is licensed under the terms of MAME license.
+ * See COPYING file in the top-level directory.
+ */
#include <stdio.h>
-#if defined(__linux__) && defined(ARM)
-#include <sys/mman.h>
-#endif
+#include <pico/pico_int.h>
#include "cmn.h"
-u32 __attribute__((aligned(4096))) tcache[DRC_TCACHE_SIZE/4];
-
+u8 ALIGNED(4096) tcache_default[DRC_TCACHE_SIZE];
+u8 *tcache;
void drc_cmn_init(void)
{
-#if defined(__linux__) && defined(ARM)
- void *tmp;
-
- tmp = mmap(tcache, DRC_TCACHE_SIZE, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_SHARED|MAP_ANONYMOUS, -1, 0);
- printf("mmap tcache: %p, asked %p\n", tmp, tcache);
+ int ret;
+
+ tcache = plat_mem_get_for_drc(DRC_TCACHE_SIZE);
+ if (tcache == NULL)
+ tcache = tcache_default;
+
+ ret = plat_mem_set_exec(tcache, DRC_TCACHE_SIZE);
+ elprintf(EL_STATUS, "drc_cmn_init: %p, %zd bytes: %d",
+ tcache, DRC_TCACHE_SIZE, ret);
+
+#ifdef __arm__
+ if (PicoOpt & POPT_EN_DRC)
+ {
+ static int test_done;
+ if (!test_done)
+ {
+ int *test_out = (void *)tcache;
+ int (*testfunc)(void) = (void *)tcache;
+
+ elprintf(EL_STATUS, "testing if we can run recompiled code..");
+ *test_out++ = 0xe3a000dd; // mov r0, 0xdd
+ *test_out++ = 0xe12fff1e; // bx lr
+ cache_flush_d_inval_i(tcache, test_out);
+
+ // we'll usually crash on broken platforms or bad ports,
+ // but do a value check too just in case
+ ret = testfunc();
+ elprintf(EL_STATUS, "test %s.", ret == 0xdd ? "passed" : "failed");
+ test_done = 1;
+ }
+ }
#endif
-
}
-// TODO: add calls in core, possibly to cart.c?
void drc_cmn_cleanup(void)
{
-#if defined(__linux__) && defined(ARM)
- int ret;
- ret = munmap(tcache, DRC_TCACHE_SIZE);
- printf("munmap tcache: %i\n", ret);
-#endif
}
+// vim:shiftwidth=2:expandtab