Merge commit 'linus/master' into merge-linus

Conflicts:

	arch/x86/kvm/i8254.c

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 a7cfb843d334..76acd28c068d 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);
 }