diff options
author | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
---|---|---|
committer | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
commit | 651dab4264e4ba0e563f5ff56f748127246e9065 (patch) | |
tree | 016630974bdcb00fe529b673f96d389e0fd6dc94 /arch/powerpc/boot/dtc-src/flattree.c | |
parent | 40b8606253552109815786e5d4b0de98782d31f5 (diff) | |
parent | 2e532d68a2b3e2aa6b19731501222069735c741c (diff) |
Merge commit 'linus/master' into merge-linus
Conflicts:
arch/x86/kvm/i8254.c
Diffstat (limited to 'arch/powerpc/boot/dtc-src/flattree.c')
-rw-r--r-- | arch/powerpc/boot/dtc-src/flattree.c | 232 |
1 files changed, 85 insertions, 147 deletions
diff --git a/arch/powerpc/boot/dtc-src/flattree.c b/arch/powerpc/boot/dtc-src/flattree.c index a7cfb843d33..76acd28c068 100644 --- a/arch/powerpc/boot/dtc-src/flattree.c +++ b/arch/powerpc/boot/dtc-src/flattree.c @@ -19,6 +19,7 @@ */ #include "dtc.h" +#include "srcpos.h" #define FTF_FULLPATH 0x1 #define FTF_VARALIGN 0x2 @@ -162,28 +163,18 @@ static void asm_emit_data(void *e, struct data d) { FILE *f = e; int off = 0; - struct marker *m; + struct marker *m = d.markers; - m = d.markers; - while (m) { - if (m->type == LABEL) - emit_offset_label(f, m->ref, m->offset); - m = m->next; - } + for_each_marker_of_type(m, LABEL) + emit_offset_label(f, m->ref, m->offset); - while ((d.len - off) >= sizeof(u32)) { + while ((d.len - off) >= sizeof(uint32_t)) { fprintf(f, "\t.long\t0x%x\n", - be32_to_cpu(*((u32 *)(d.val+off)))); - off += sizeof(u32); - } - - if ((d.len - off) >= sizeof(u16)) { - fprintf(f, "\t.short\t0x%hx\n", - be16_to_cpu(*((u16 *)(d.val+off)))); - off += sizeof(u16); + fdt32_to_cpu(*((uint32_t *)(d.val+off)))); + off += sizeof(uint32_t); } - if ((d.len - off) >= 1) { + while ((d.len - off) >= 1) { fprintf(f, "\t.byte\t0x%hhx\n", d.val[off]); off += 1; } @@ -336,29 +327,28 @@ static void make_fdt_header(struct fdt_header *fdt, memset(fdt, 0xff, sizeof(*fdt)); - fdt->magic = cpu_to_be32(FDT_MAGIC); - fdt->version = cpu_to_be32(vi->version); - fdt->last_comp_version = cpu_to_be32(vi->last_comp_version); + fdt->magic = cpu_to_fdt32(FDT_MAGIC); + fdt->version = cpu_to_fdt32(vi->version); + fdt->last_comp_version = cpu_to_fdt32(vi->last_comp_version); /* Reserve map should be doubleword aligned */ reserve_off = ALIGN(vi->hdr_size, 8); - fdt->off_mem_rsvmap = cpu_to_be32(reserve_off); - fdt->off_dt_struct = cpu_to_be32(reserve_off + reservesize); - fdt->off_dt_strings = cpu_to_be32(reserve_off + reservesize + fdt->off_mem_rsvmap = cpu_to_fdt32(reserve_off); + fdt->off_dt_struct = cpu_to_fdt32(reserve_off + reservesize); + fdt->off_dt_strings = cpu_to_fdt32(reserve_off + reservesize + dtsize); - fdt->totalsize = cpu_to_be32(reserve_off + reservesize + dtsize + strsize); + fdt->totalsize = cpu_to_fdt32(reserve_off + reservesize + dtsize + strsize); if (vi->flags & FTF_BOOTCPUID) - fdt->boot_cpuid_phys = cpu_to_be32(boot_cpuid_phys); + fdt->boot_cpuid_phys = cpu_to_fdt32(boot_cpuid_phys); if (vi->flags & FTF_STRTABSIZE) - fdt->size_dt_strings = cpu_to_be32(strsize); + fdt->size_dt_strings = cpu_to_fdt32(strsize); if (vi->flags & FTF_STRUCTSIZE) - fdt->size_dt_struct = cpu_to_be32(dtsize); + fdt->size_dt_struct = cpu_to_fdt32(dtsize); } -void dt_to_blob(FILE *f, struct boot_info *bi, int version, - int boot_cpuid_phys) +void dt_to_blob(FILE *f, struct boot_info *bi, int version) { struct version_info *vi = NULL; int i; @@ -383,26 +373,26 @@ void dt_to_blob(FILE *f, struct boot_info *bi, int version, /* Make header */ make_fdt_header(&fdt, vi, reservebuf.len, dtbuf.len, strbuf.len, - boot_cpuid_phys); + bi->boot_cpuid_phys); /* * If the user asked for more space than is used, adjust the totalsize. */ if (minsize > 0) { - padlen = minsize - be32_to_cpu(fdt.totalsize); + padlen = minsize - fdt32_to_cpu(fdt.totalsize); if ((padlen < 0) && (quiet < 1)) fprintf(stderr, "Warning: blob size %d >= minimum size %d\n", - be32_to_cpu(fdt.totalsize), minsize); + fdt32_to_cpu(fdt.totalsize), minsize); } if (padsize > 0) padlen = padsize; if (padlen > 0) { - int tsize = be32_to_cpu(fdt.totalsize); + int tsize = fdt32_to_cpu(fdt.totalsize); tsize += padlen; - fdt.totalsize = cpu_to_be32(tsize); + fdt.totalsize = cpu_to_fdt32(tsize); } /* @@ -410,7 +400,7 @@ void dt_to_blob(FILE *f, struct boot_info *bi, int version, * the reserve buffer, add the reserve map terminating zeroes, * the device tree itself, and finally the strings. */ - blob = data_append_data(blob, &fdt, sizeof(fdt)); + blob = data_append_data(blob, &fdt, vi->hdr_size); blob = data_append_align(blob, 8); blob = data_merge(blob, reservebuf); blob = data_append_zeroes(blob, sizeof(struct fdt_reserve_entry)); @@ -449,7 +439,7 @@ static void dump_stringtable_asm(FILE *f, struct data strbuf) } } -void dt_to_asm(FILE *f, struct boot_info *bi, int version, int boot_cpuid_phys) +void dt_to_asm(FILE *f, struct boot_info *bi, int version) { struct version_info *vi = NULL; int i; @@ -489,7 +479,7 @@ void dt_to_asm(FILE *f, struct boot_info *bi, int version, int boot_cpuid_phys) if (vi->flags & FTF_BOOTCPUID) fprintf(f, "\t.long\t%i\t\t\t\t\t/* boot_cpuid_phys */\n", - boot_cpuid_phys); + bi->boot_cpuid_phys); if (vi->flags & FTF_STRTABSIZE) fprintf(f, "\t.long\t_%s_strings_end - _%s_strings_start\t/* size_dt_strings */\n", @@ -579,15 +569,15 @@ static void flat_read_chunk(struct inbuf *inb, void *p, int len) inb->ptr += len; } -static u32 flat_read_word(struct inbuf *inb) +static uint32_t flat_read_word(struct inbuf *inb) { - u32 val; + uint32_t val; assert(((inb->ptr - inb->base) % sizeof(val)) == 0); flat_read_chunk(inb, &val, sizeof(val)); - return be32_to_cpu(val); + return fdt32_to_cpu(val); } static void flat_realign(struct inbuf *inb, int align) @@ -615,7 +605,7 @@ static char *flat_read_string(struct inbuf *inb) inb->ptr += len; - flat_realign(inb, sizeof(u32)); + flat_realign(inb, sizeof(uint32_t)); return str; } @@ -632,7 +622,7 @@ static struct data flat_read_data(struct inbuf *inb, int len) flat_read_chunk(inb, d.val, len); - flat_realign(inb, sizeof(u32)); + flat_realign(inb, sizeof(uint32_t)); return d; } @@ -659,7 +649,7 @@ static char *flat_read_stringtable(struct inbuf *inb, int offset) static struct property *flat_read_property(struct inbuf *dtbuf, struct inbuf *strbuf, int flags) { - u32 proplen, stroff; + uint32_t proplen, stroff; char *name; struct data val; @@ -693,8 +683,8 @@ static struct reserve_info *flat_read_mem_reserve(struct inbuf *inb) p = inb->ptr; while (1) { flat_read_chunk(inb, &re, sizeof(re)); - re.address = be64_to_cpu(re.address); - re.size = be64_to_cpu(re.size); + re.address = fdt64_to_cpu(re.address); + re.size = fdt64_to_cpu(re.size); if (re.size == 0) break; @@ -708,77 +698,37 @@ static struct reserve_info *flat_read_mem_reserve(struct inbuf *inb) static char *nodename_from_path(const char *ppath, const char *cpath) { - const char *lslash; int plen; - lslash = strrchr(cpath, '/'); - if (! lslash) - return NULL; - - plen = lslash - cpath; - - if (streq(cpath, "/") && streq(ppath, "")) - return ""; - - if ((plen == 0) && streq(ppath, "/")) - return strdup(lslash+1); - - if (! strneq(ppath, cpath, plen)) - return NULL; - - return strdup(lslash+1); -} - -static const char PROPCHAR[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789,._+*#?-"; -static const char UNITCHAR[] = "0123456789abcdef,"; - -static int check_node_name(const char *name) -{ - const char *atpos; - int basenamelen; + plen = strlen(ppath); - atpos = strrchr(name, '@'); + if (!strneq(ppath, cpath, plen)) + die("Path \"%s\" is not valid as a child of \"%s\"\n", + cpath, ppath); - if (atpos) - basenamelen = atpos - name; - else - basenamelen = strlen(name); - - if (strspn(name, PROPCHAR) < basenamelen) - return -1; + /* root node is a special case */ + if (!streq(ppath, "/")) + plen++; - if (atpos - && ((basenamelen + 1 + strspn(atpos+1, UNITCHAR)) < strlen(name))) - return -1; - - return basenamelen; + return strdup(cpath + plen); } static struct node *unflatten_tree(struct inbuf *dtbuf, struct inbuf *strbuf, - const char *parent_path, int flags) + const char *parent_flatname, int flags) { struct node *node; - u32 val; + char *flatname; + uint32_t val; node = build_node(NULL, NULL); - if (flags & FTF_FULLPATH) { - node->fullpath = flat_read_string(dtbuf); - node->name = nodename_from_path(parent_path, node->fullpath); - - if (! node->name) - die("Path \"%s\" is not valid as a child of \"%s\"\n", - node->fullpath, parent_path); - } else { - node->name = flat_read_string(dtbuf); - node->fullpath = join_path(parent_path, node->name); - } + flatname = flat_read_string(dtbuf); - node->basenamelen = check_node_name(node->name); - if (node->basenamelen < 0) { - fprintf(stderr, "Warning \"%s\" has incorrect format\n", node->name); - } + if (flags & FTF_FULLPATH) + node->name = nodename_from_path(parent_flatname, flatname); + else + node->name = flatname; do { struct property *prop; @@ -795,8 +745,7 @@ static struct node *unflatten_tree(struct inbuf *dtbuf, break; case FDT_BEGIN_NODE: - child = unflatten_tree(dtbuf,strbuf, node->fullpath, - flags); + child = unflatten_tree(dtbuf,strbuf, flatname, flags); add_child(node, child); break; @@ -825,10 +774,11 @@ static struct node *unflatten_tree(struct inbuf *dtbuf, } -struct boot_info *dt_from_blob(FILE *f) +struct boot_info *dt_from_blob(const char *fname) { - u32 magic, totalsize, version, size_str, size_dt; - u32 off_dt, off_str, off_mem_rsvmap; + struct dtc_file *dtcf; + uint32_t magic, totalsize, version, size_dt, boot_cpuid_phys; + uint32_t off_dt, off_str, off_mem_rsvmap; int rc; char *blob; struct fdt_header *fdt; @@ -838,54 +788,56 @@ struct boot_info *dt_from_blob(FILE *f) int sizeleft; struct reserve_info *reservelist; struct node *tree; - u32 val; + uint32_t val; int flags = 0; - rc = fread(&magic, sizeof(magic), 1, f); - if (ferror(f)) + dtcf = dtc_open_file(fname, NULL); + + rc = fread(&magic, sizeof(magic), 1, dtcf->file); + if (ferror(dtcf->file)) die("Error reading DT blob magic number: %s\n", strerror(errno)); if (rc < 1) { - if (feof(f)) + if (feof(dtcf->file)) die("EOF reading DT blob magic number\n"); else die("Mysterious short read reading magic number\n"); } - magic = be32_to_cpu(magic); + magic = fdt32_to_cpu(magic); if (magic != FDT_MAGIC) die("Blob has incorrect magic number\n"); - rc = fread(&totalsize, sizeof(totalsize), 1, f); - if (ferror(f)) + rc = fread(&totalsize, sizeof(totalsize), 1, dtcf->file); + if (ferror(dtcf->file)) die("Error reading DT blob size: %s\n", strerror(errno)); if (rc < 1) { - if (feof(f)) + if (feof(dtcf->file)) die("EOF reading DT blob size\n"); else die("Mysterious short read reading blob size\n"); } - totalsize = be32_to_cpu(totalsize); + totalsize = fdt32_to_cpu(totalsize); if (totalsize < FDT_V1_SIZE) die("DT blob size (%d) is too small\n", totalsize); blob = xmalloc(totalsize); fdt = (struct fdt_header *)blob; - fdt->magic = cpu_to_be32(magic); - fdt->totalsize = cpu_to_be32(totalsize); + fdt->magic = cpu_to_fdt32(magic); + fdt->totalsize = cpu_to_fdt32(totalsize); sizeleft = totalsize - sizeof(magic) - sizeof(totalsize); p = blob + sizeof(magic) + sizeof(totalsize); while (sizeleft) { - if (feof(f)) + if (feof(dtcf->file)) die("EOF before reading %d bytes of DT blob\n", totalsize); - rc = fread(p, 1, sizeleft, f); - if (ferror(f)) + rc = fread(p, 1, sizeleft, dtcf->file); + if (ferror(dtcf->file)) die("Error reading DT blob: %s\n", strerror(errno)); @@ -893,19 +845,11 @@ struct boot_info *dt_from_blob(FILE *f) p += rc; } - off_dt = be32_to_cpu(fdt->off_dt_struct); - off_str = be32_to_cpu(fdt->off_dt_strings); - off_mem_rsvmap = be32_to_cpu(fdt->off_mem_rsvmap); - version = be32_to_cpu(fdt->version); - - fprintf(stderr, "\tmagic:\t\t\t0x%x\n", magic); - fprintf(stderr, "\ttotalsize:\t\t%d\n", totalsize); - fprintf(stderr, "\toff_dt_struct:\t\t0x%x\n", off_dt); - fprintf(stderr, "\toff_dt_strings:\t\t0x%x\n", off_str); - fprintf(stderr, "\toff_mem_rsvmap:\t\t0x%x\n", off_mem_rsvmap); - fprintf(stderr, "\tversion:\t\t0x%x\n", version ); - fprintf(stderr, "\tlast_comp_version:\t0x%x\n", - be32_to_cpu(fdt->last_comp_version)); + off_dt = fdt32_to_cpu(fdt->off_dt_struct); + off_str = fdt32_to_cpu(fdt->off_dt_strings); + off_mem_rsvmap = fdt32_to_cpu(fdt->off_mem_rsvmap); + version = fdt32_to_cpu(fdt->version); + boot_cpuid_phys = fdt32_to_cpu(fdt->boot_cpuid_phys); if (off_mem_rsvmap >= totalsize) die("Mem Reserve structure offset exceeds total size\n"); @@ -916,21 +860,17 @@ struct boot_info *dt_from_blob(FILE *f) if (off_str > totalsize) die("String table offset exceeds total size\n"); - if (version >= 2) - fprintf(stderr, "\tboot_cpuid_phys:\t0x%x\n", - be32_to_cpu(fdt->boot_cpuid_phys)); - - size_str = -1; if (version >= 3) { - size_str = be32_to_cpu(fdt->size_dt_strings); - fprintf(stderr, "\tsize_dt_strings:\t%d\n", size_str); + uint32_t size_str = fdt32_to_cpu(fdt->size_dt_strings); if (off_str+size_str > totalsize) die("String table extends past total size\n"); + inbuf_init(&strbuf, blob + off_str, blob + off_str + size_str); + } else { + inbuf_init(&strbuf, blob + off_str, blob + totalsize); } if (version >= 17) { - size_dt = be32_to_cpu(fdt->size_dt_struct); - fprintf(stderr, "\tsize_dt_struct:\t\t%d\n", size_dt); + size_dt = fdt32_to_cpu(fdt->size_dt_struct); if (off_dt+size_dt > totalsize) die("Structure block extends past total size\n"); } @@ -944,10 +884,6 @@ struct boot_info *dt_from_blob(FILE *f) inbuf_init(&memresvbuf, blob + off_mem_rsvmap, blob + totalsize); inbuf_init(&dtbuf, blob + off_dt, blob + totalsize); - if (size_str >= 0) - inbuf_init(&strbuf, blob + off_str, blob + off_str + size_str); - else - inbuf_init(&strbuf, blob + off_str, blob + totalsize); reservelist = flat_read_mem_reserve(&memresvbuf); @@ -964,5 +900,7 @@ struct boot_info *dt_from_blob(FILE *f) free(blob); - return build_boot_info(reservelist, tree); + dtc_close_file(dtcf); + + return build_boot_info(reservelist, tree, boot_cpuid_phys); } |