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drc: do a test on startup

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saves time for porting help
This commit is contained in:
notaz 2013-07-29 04:47:07 +03:00
parent 2dbc96b1c7
commit 570dde615d
1 changed files with 28 additions and 2 deletions
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30
cpu/drc/cmn.c
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@ -7,7 +7,7 @@
*/
#include <stdio.h>
#include <pico/pico.h>
#include <pico/pico_int.h>
#include "cmn.h"
u8 __attribute__((aligned(4096))) tcache[DRC_TCACHE_SIZE];
@ -15,9 +15,35 @@ u8 __attribute__((aligned(4096))) tcache[DRC_TCACHE_SIZE];
void drc_cmn_init(void)
{
plat_mem_set_exec(tcache, sizeof(tcache));
int ret = plat_mem_set_exec(tcache, sizeof(tcache));
elprintf(EL_STATUS, "drc_cmn_init: %p, %zd bytes: %d",
tcache, sizeof(tcache), ret);
#ifdef __arm__
{
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
}
void drc_cmn_cleanup(void)
{
}
// vim:shiftwidth=2:expandtab