static void dispatch_io(int rw, unsigned int num_regions,
struct dm_io_region *where, struct dpages *dp,
struct io *io, int sync)
{
int i;
struct dpages old_pages = *dp;
BUG_ON(num_regions > DM_IO_MAX_REGIONS);
if (sync)
rw |= REQ_SYNC;
/*
* For multiple regions we need to be careful to rewind
* the dp object for each call to do_region.
*/
for (i = 0; i < num_regions; i++) {
*dp = old_pages;
if (where[i].count || (rw & REQ_FLUSH))
do_region(rw, i, where + i, dp, io);
}
/*
* Drop the extra reference that we were holding to avoid
* the io being completed too early.
*/
dec_count(io, 0, 0);
}
static void dispatch_io(int rw, unsigned int num_regions,
struct dm_io_region *where, struct dpages *dp,
struct io *io, int sync)
{
int i;
struct dpages old_pages = *dp;
BUG_ON(num_regions > DM_IO_MAX_REGIONS);
if (sync)
rw |= REQ_SYNC;
for (i = 0; i < num_regions; i++) {
*dp = old_pages;
if (where[i].count || (rw & REQ_FLUSH))
do_region(rw, i, where + i, dp, io);
}
dec_count(io, 0, 0);
}
int config_parse_args(config_t *cfg, int argc, char *argv[])
{
int i;
int saw_dump_file = 0;
if (argc < 2) {
debug_printf(CONFIG, WARNING,
"Processors tend to be unhappy with nothing on their bus.\n"
"(Run \"%s --help\" for more info.)\n", argv[0]);
}
for (i = 1; i < argc; ) {
if (!strcmp(argv[i], "--region") || !strcmp(argv[i], "-r")) {
uint32_t base, size;
char *end;
if (argc - i < 4) {
debug_print(CONFIG, FATAL,
"--region: expected <base> <size> <readmemh-file>\n");
return 1;
}
base = strtoul(argv[i + 1], &end, 16);
if (*end != '\0') {
debug_printf(CONFIG, FATAL,
"--region: invalid base \"%s\"\n", argv[i + 1]);
return 1;
}
size = strtoul(argv[i + 2], &end, 16);
if (*end != '\0') {
debug_printf(CONFIG, FATAL,
"--region: invalid size \"%s\"\n", argv[i + 2]);
return 1;
}
if (do_region(cfg->mem, base, size, argv[i + 3])) {
return 1;
}
i += 4;
} else if (!strcmp(argv[i], "--pc") || !strcmp(argv[i], "-p")) {
uint32_t pc;
char *end;
if (argc - i < 2) {
debug_print(CONFIG, FATAL, "--pc: expected <initial-pc>\n");
return 1;
}
pc = strtoul(argv[i + 1], &end, 16);
if (*end != '\0') {
debug_printf(CONFIG, FATAL,
"--pc: invalid pc \"%s\"\n", argv[i + 1]);
return 1;
}
cfg->pc = pc;
i += 2;
} else if (!strcmp(argv[i], "--dump") || !strcmp(argv[i], "-d")) {
if (argc - i < 1) {
debug_print(CONFIG, FATAL, "--dump: expected <dump-file>\n");
return 1;
}
if (saw_dump_file) {
debug_print(CONFIG, FATAL,
"--dump: may not be specified multiple times\n");
return 1;
}
cfg->dump_file = fopen(argv[i + 1], "w");
if (!cfg->dump_file) {
debug_printf(CONFIG, FATAL,
"%s: %s\n", argv[i + 1], strerror(errno));
return 1;
}
saw_dump_file = 1;
i += 2;
} else if (!strcmp(argv[i], "--console") || !strcmp(argv[i], "-c")) {
uint32_t addr;
char *end;
if (argc - i < 2) {
debug_print(CONFIG, FATAL, "--console: expected <addr>\n");
return 1;
}
addr = strtoul(argv[i + 1], &end, 16);
if (*end != '\0') {
debug_printf(CONFIG, FATAL,
"--console: invalid addr \"%s\"\n", argv[i + 1]);
return 1;
}
mem_map(cfg->mem, addr, serial_create(0, 1));
i += 2;
} else if (!strcmp(argv[i], "--filter") || !strcmp(argv[i], "-f")) {
if (argc - i < 2) {
debug_print(CONFIG, FATAL, "--filter: expected <filter>\n");
return 1;
}
cfg->filter = filter_find(argv[i + 1]);
if (!cfg->filter) {
debug_printf(CONFIG, FATAL,
"--filter: unknown filter \"%s\"\n", argv[i + 1]);
return 1;
}
i += 2;
} else if (!strncmp(argv[i], "--filter=", 9)) {
cfg->filter = filter_find(argv[i] + 9);
if (!cfg->filter) {
debug_printf(CONFIG, FATAL,
"--filter: unknown filter \"%s\"\n", argv[i] + 9);
return 1;
}
i += 1;
} else if (!strcmp(argv[i], "--step") || !strcmp(argv[i], "-s")) {
cfg->step = 1;
i += 1;
} else if (!strcmp(argv[i], "--help") || !strcmp(argv[i], "-h")) {
usage(argv[0]);
return 1;
} else if (!strcmp(argv[i], "--quiet") || !strcmp(argv[i], "-q")) {
if (cfg->debug > 0) {
debug_set_level(--cfg->debug);
}
i += 1;
} else if (!strcmp(argv[i], "--verbose") || !strcmp(argv[i], "-v")) {
if (cfg->debug < NUM_DEBUG_LEVELS - 1) {
debug_set_level(++cfg->debug);
}
i += 1;
} else if (!strcmp(argv[i], "--version") || !strcmp(argv[i], "-V")) {
version();
return 1;
} else {
debug_printf(CONFIG, FATAL, "Invalid argument \"%s\"\n", argv[i]);
return 1;
}
}
return 0;
}
