static int __init early_parse_mv(char *from) { char mv_name[MV_NAME_SIZE] = ""; char *mv_end; char *mv_comma; int mv_len; struct sh_machine_vector *mvp; mv_end = strchr(from, ' '); if (mv_end == NULL) mv_end = from + strlen(from); mv_comma = strchr(from, ','); mv_len = mv_end - from; if (mv_len > (MV_NAME_SIZE-1)) mv_len = MV_NAME_SIZE-1; memcpy(mv_name, from, mv_len); mv_name[mv_len] = '\0'; from = mv_end; machvec_selected = 1; /* Boot with the generic vector */ if (strcmp(mv_name, "generic") == 0) return 0; mvp = get_mv_byname(mv_name); if (unlikely(!mvp)) { printk("Available vectors:\n\n\t'%s', ", sh_mv.mv_name); for_each_mv(mvp) printk("'%s', ", mvp->mv_name); printk("\n\n"); panic("Failed to select machvec '%s' -- halting.\n", mv_name); } else sh_mv = *mvp; return 0; }
static inline void parse_cmdline (char ** cmdline_p, char mv_name[MV_NAME_SIZE], struct sh_machine_vector** mvp, unsigned long *mv_io_base, int *mv_mmio_enable) { char c = ' ', *to = command_line, *from = COMMAND_LINE; int len = 0; /* Save unparsed command line copy for /proc/cmdline */ memcpy(saved_command_line, COMMAND_LINE, COMMAND_LINE_SIZE); saved_command_line[COMMAND_LINE_SIZE-1] = '\0'; memory_start = (unsigned long)PAGE_OFFSET+__MEMORY_START; memory_end = memory_start + __MEMORY_SIZE; for (;;) { /* * "mem=XXX[kKmM]" defines a size of memory. */ if (c == ' ' && !memcmp(from, "mem=", 4)) { if (to != command_line) to--; { unsigned long mem_size; mem_size = memparse(from+4, &from); memory_end = memory_start + mem_size; } } if (c == ' ' && !memcmp(from, "sh_mv=", 6)) { char* mv_end; char* mv_comma; int mv_len; if (to != command_line) to--; from += 6; mv_end = strchr(from, ' '); if (mv_end == NULL) mv_end = from + strlen(from); mv_comma = strchr(from, ','); if ((mv_comma != NULL) && (mv_comma < mv_end)) { int ints[3]; get_options(mv_comma+1, ARRAY_SIZE(ints), ints); *mv_io_base = ints[1]; *mv_mmio_enable = ints[2]; mv_len = mv_comma - from; } else { mv_len = mv_end - from; } if (mv_len > (MV_NAME_SIZE-1)) mv_len = MV_NAME_SIZE-1; memcpy(mv_name, from, mv_len); mv_name[mv_len] = '\0'; from = mv_end; *mvp = get_mv_byname(mv_name); } c = *(from++); if (!c) break; if (COMMAND_LINE_SIZE <= ++len) break; *(to++) = c; } *to = '\0'; *cmdline_p = command_line; }