OVMS3-idf/components/esp32/test/test_psram_silicon_bug.c
2017-03-28 11:49:33 +08:00

124 lines
3.4 KiB
C

/*
This code triggers a psram-related silicon bug in rev0 silicon. The bug is fixed in rev1 silicon.
*/
#include <esp_types.h>
#include <stdio.h>
#include "rom/ets_sys.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "freertos/queue.h"
#include "freertos/xtensa_api.h"
#include "unity.h"
#include "soc/dport_reg.h"
#include "soc/io_mux_reg.h"
#include <stdint.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "rom/ets_sys.h"
#include "esp_heap_alloc_caps.h"
typedef struct {
char name[9];
int dummy[4];
int *wadfile;
int dummy2[2];
} xlumpinfo_t;
static xlumpinfo_t *xlumpinfo=(xlumpinfo_t*)0x3f80002c;
static int xnumlumps=5500;
static int isValidPtr(void *ptr) {
if (((int)ptr&0xff000000)==0x3f000000) return 1;
return 0;
}
int test_weird_corruption() {
int err=0;
xlumpinfo_t *marked = (xlumpinfo_t*)0x3fff2824;
size_t i, num_marked = 0, num_unmarked = 0;
// int is_marked = 0, mark_end = 0;
xlumpinfo_t *lump = xlumpinfo;
int x;
for (x=0; x<xnumlumps; x++) {
if (xlumpinfo[x].wadfile && !isValidPtr(xlumpinfo[x].wadfile)) {
ets_printf("Lump wad before error!");
}
}
for (i=xnumlumps; i--; lump++) {
xlumpinfo[num_unmarked]=*lump; // else move down THIS list
num_unmarked++;
}
// Append marked list to end of unmarked list
memcpy(&xlumpinfo[num_unmarked], marked, num_marked * sizeof(*marked));
// free(marked); // free marked list
xnumlumps = num_unmarked + num_marked; // new total number of lumps
for (x=0; x<xnumlumps; x++) {
if (xlumpinfo[x].wadfile && !isValidPtr(xlumpinfo[x].wadfile)) {
ets_printf("Lump wad error for %s at addr %p! Index=%d unmarked=%d marked=%d Should be %p is %p\n",
xlumpinfo[x].name, &xlumpinfo[x].wadfile, x, num_unmarked, num_marked, xlumpinfo[x+1].wadfile,xlumpinfo[x].wadfile);
int j;
for (j=0; j<10; j++) {
ets_printf("%08x ", ((uint32_t*)&xlumpinfo[x])[j]);
}
ets_printf("\n");
for (j=0; j<10; j++) {
ets_printf("%08x ", ((uint32_t*)&xlumpinfo[x-1])[j]);
}
ets_printf("\n");
err++;
}
}
return err;
}
TEST_CASE("PSram bug in rev0 silicon (Doom bug)", "[psram][ignore]")
{
int i, r=0;
xlumpinfo_t *p;
#if CONFIG_MEMMAP_SMP
printf("WARNING\n");
printf("WARNING - This bug sometimes doesn't show up unless MEMMAP_SMP is disabled. You have it enabled now, so the test may erroneously pass.\n");
printf("WARNING\n");
#endif
#if !CONFIG_MEMMAP_SPIRAM_ENABLE
printf("WARNING\n");
printf("WARNING - This test needs psram enabled. You don't seem to have that; the test is likely to crash.\n");
printf("WARNING\n");
#endif
printf("Stack ptr %p\n", &i);
p=pvPortMallocCaps(sizeof(xlumpinfo_t)*5600, MALLOC_CAP_SPIRAM);
xlumpinfo=p;
//Bug seems to only trigger when address ends in 2C
while (((int)xlumpinfo&0xff)!=0x2c) xlumpinfo=(xlumpinfo_t*)(((char*)xlumpinfo)+1);
printf("lumpinfo ptr %p\n", xlumpinfo);
for (i=0; i<xnumlumps; i++) {
sprintf(xlumpinfo[i].name, "DIGD");
xlumpinfo[i].wadfile=(int*)0x3ffef664;
}
ets_printf("Running corruption test...\n");
for (i=0; i<20; i++) {
r+=test_weird_corruption();
}
free(p);
TEST_ASSERT(r==0);
}