Merge commit 'v2.6.29-rc1' into core/urgent

6 files changed, 484 insertions, 12 deletions

diff --git a/scripts/.gitignore b/scripts/.gitignore
index b939fbd01195..09e2406f3b78 100644
--- a/scripts/.gitignore
+++ b/scripts/.gitignore
@@ -1,6 +1,7 @@
 #
 # Generated files
 #
+ihex2fw
 conmakehash
 kallsyms
 pnmtologo
diff --git a/scripts/Makefile b/scripts/Makefile
index aafdf064feef..035182e16afb 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -2,11 +2,12 @@
 # scripts contains sources for various helper programs used throughout
 # the kernel for the build process.
 # ---------------------------------------------------------------------------
+# ihex2fw:       Parser/loader for IHEX formatted data
 # kallsyms:      Find all symbols in vmlinux
 # pnmttologo:    Convert pnm files to logo files
-# conmakehash:   Create chartable
 # conmakehash:   Create arrays for initializing the kernel console tables
 
+hostprogs-y                      := ihex2fw
 hostprogs-$(CONFIG_KALLSYMS)     += kallsyms
 hostprogs-$(CONFIG_LOGO)         += pnmtologo
 hostprogs-$(CONFIG_VT)           += conmakehash
diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl
index f0af9aa9b243..b0246307aac4 100644
--- a/scripts/bootgraph.pl
+++ b/scripts/bootgraph.pl
@@ -41,11 +41,13 @@ use strict;
 
 my %start;
 my %end;
+my %type;
 my $done = 0;
 my $maxtime = 0;
 my $firsttime = 100;
 my $count = 0;
 my %pids;
+my %pidctr;
 
 while (<>) {
         my $line = $_;
@@ -53,6 +55,7 @@ while (<>) {
                 my $func = $2;
                 if ($done == 0) {
                         $start{$func} = $1;
+                        $type{$func} = 0;
                         if ($1 < $firsttime) {
                                 $firsttime = $1;
                         }
@@ -63,12 +66,40 @@ while (<>) {
                 $count = $count + 1;
         }
 
+        if ($line =~ /([0-9\.]+)\] async_waiting @ ([0-9]+)/) {
+                my $pid = $2;
+                my $func;
+                if (!defined($pidctr{$pid})) {
+                        $func = "wait_" . $pid . "_1";
+                        $pidctr{$pid} = 1;
+                } else {
+                        $pidctr{$pid} = $pidctr{$pid} + 1;
+                        $func = "wait_" . $pid . "_" . $pidctr{$pid};
+                }
+                if ($done == 0) {
+                        $start{$func} = $1;
+                        $type{$func} = 1;
+                        if ($1 < $firsttime) {
+                                $firsttime = $1;
+                        }
+                }
+                $pids{$func} = $pid;
+                $count = $count + 1;
+        }
+
         if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_]+)\+.*returned/) {
                 if ($done == 0) {
                         $end{$2} = $1;
                         $maxtime = $1;
                 }
         }
+
+        if ($line =~ /([0-9\.]+)\] async_continuing @ ([0-9]+)/) {
+                my $pid = $2;
+                my $func =  "wait_" . $pid . "_" . $pidctr{$pid};
+                $end{$func} = $1;
+                $maxtime = $1;
+        }
         if ($line =~ /Write protecting the/) {
                 $done = 1;
         }
@@ -88,7 +119,7 @@ END
 }
 
 print "<?xml version=\"1.0\" standalone=\"no\"?> \n";
-print "<svg width=\"1000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";
+print "<svg width=\"2000\" height=\"100%\" version=\"1.1\" xmlns=\"http://www.w3.org/2000/svg\">\n";
 
 my @styles;
 
@@ -105,8 +136,11 @@ $styles[9] = "fill:rgb(255,255,128);fill-opacity:0.5;stroke-width:1;stroke:rgb(0
 $styles[10] = "fill:rgb(255,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
 $styles[11] = "fill:rgb(128,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
 
-my $mult = 950.0 / ($maxtime - $firsttime);
-my $threshold = ($maxtime - $firsttime) / 60.0;
+my $style_wait = "fill:rgb(128,128,128);fill-opacity:0.5;stroke-width:0;stroke:rgb(0,0,0)";
+
+my $mult = 1950.0 / ($maxtime - $firsttime);
+my $threshold2 = ($maxtime - $firsttime) / 120.0;
+my $threshold = $threshold2/10;
 my $stylecounter = 0;
 my %rows;
 my $rowscount = 1;
@@ -116,7 +150,7 @@ foreach my $key (@initcalls) {
         my $duration = $end{$key} - $start{$key};
 
         if ($duration >= $threshold) {
-                my ($s, $s2, $e, $w, $y, $y2, $style);
+                my ($s, $s2, $s3, $e, $w, $y, $y2, $style);
                 my $pid = $pids{$key};
 
                 if (!defined($rows{$pid})) {
@@ -125,6 +159,7 @@ foreach my $key (@initcalls) {
                 }
                 $s = ($start{$key} - $firsttime) * $mult;
                 $s2 = $s + 6;
+                $s3 = $s + 1;
                 $e = ($end{$key} - $firsttime) * $mult;
                 $w = $e - $s;
 
@@ -137,8 +172,17 @@ foreach my $key (@initcalls) {
                         $stylecounter = 0;
                 };
 
-                print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
-                print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
+                if ($type{$key} == 1) {
+                        $y = $y + 15;
+                        print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"115\" style=\"$style_wait\"/>\n";
+                } else {
+                        print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
+                        if ($duration >= $threshold2) {
+                                print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
+                        } else {
+                                print "<text transform=\"translate($s3,$y2) rotate(90)\" font-size=\"3pt\">$key</text>\n";
+                        }
+                }
         }
 }
 
diff --git a/scripts/config b/scripts/config
new file mode 100755
index 000000000000..68b9761cdc38
--- /dev/null
+++ b/scripts/config
@@ -0,0 +1,150 @@
+#!/bin/bash
+# Manipulate options in a .config file from the command line
+
+usage() {
+        cat >&2 <<EOL
+Manipulate options in a .config file from the command line.
+Usage:
+config options command ...
+commands:
+        --enable|-e option   Enable option
+        --disable|-d option  Disable option
+        --module|-m option      Turn option into a module
+        --state|-s option       Print state of option (n,y,m,undef)
+
+        --enable-after|-E beforeopt option
+                             Enable option directly after other option
+        --disable-after|-D beforeopt option
+                             Disable option directly after other option
+        --module-after|-M beforeopt option
+                             Turn option into module directly after other option
+
+        commands can be repeated multiple times
+
+options:
+        --file .config file to change (default .config)
+
+config doesn't check the validity of the .config file. This is done at next
+ make time.
+The options need to be already in the file before they can be changed,
+but sometimes you can cheat with the --*-after options.
+EOL
+        exit 1
+}
+
+checkarg() {
+        ARG="$1"
+        if [ "$ARG" = "" ] ; then
+                usage
+        fi
+        case "$ARG" in
+        CONFIG_*)
+                ARG="${ARG/CONFIG_/}"
+                ;;
+        esac
+        ARG="`echo $ARG | tr a-z A-Z`"
+}
+
+replace() {
+        sed -i -e "$@" $FN
+}
+
+if [ "$1" = "--file" ]; then
+        FN="$2"
+        if [ "$FN" = "" ] ; then
+                usage
+        fi
+        shift
+        shift
+else
+        FN=.config
+fi
+
+while [ "$1" != "" ] ; do
+        CMD="$1"
+        shift
+        case "$CMD" in
+        --enable|-e)
+                checkarg "$1"
+                replace "s/# CONFIG_$ARG is not set/CONFIG_$ARG=y/"
+                shift
+                ;;
+
+        --disable|-d)
+                checkarg "$1"
+                replace "s/CONFIG_$ARG=[my]/# CONFIG_$ARG is not set/"
+                shift
+                ;;
+
+        --module|-m)
+                checkarg "$1"
+                replace "s/CONFIG_$ARG=y/CONFIG_$ARG=m/" \
+                        -e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=m/"
+                shift
+                ;;
+
+        --state|-s)
+                checkarg "$1"
+                if grep -q "# CONFIG_$ARG is not set" $FN ; then
+                        echo n
+                else
+                        V="$(grep "^CONFIG_$ARG=" $FN)"
+                        if [ $? != 0 ] ; then
+                                echo undef
+                        else
+                                V="${V/CONFIG_$ARG=/}"
+                                V="${V/\"/}"
+                                echo "$V"
+                        fi
+                fi
+                shift
+                ;;
+
+        --enable-after|-E)
+                checkarg "$1"
+                A=$ARG
+                checkarg "$2"
+                B=$ARG
+                replace "/CONFIG_$A=[my]/aCONFIG_$B=y" \
+                        -e "/# CONFIG_$ARG is not set/a/CONFIG_$ARG=y" \
+                        -e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=y/"
+                shift
+                shift
+                ;;
+
+        --disable-after|-D)
+                checkarg "$1"
+                A=$ARG
+                checkarg "$2"
+                B=$ARG
+                replace "/CONFIG_$A=[my]/a# CONFIG_$B is not set" \
+                -e "/# CONFIG_$ARG is not set/a/# CONFIG_$ARG is not set" \
+                -e "s/CONFIG_$ARG=[my]/# CONFIG_$ARG is not set/"
+                shift
+                shift
+                ;;
+
+        --module-after|-M)
+                checkarg "$1"
+                A=$ARG
+                checkarg "$2"
+                B=$ARG
+                replace "/CONFIG_$A=[my]/aCONFIG_$B=m" \
+                        -e "/# CONFIG_$ARG is not set/a/CONFIG_$ARG=m" \
+                        -e "s/CONFIG_$ARG=y/CONFIG_$ARG=m/" \
+                        -e "s/# CONFIG_$ARG is not set/CONFIG_$ARG=m/"
+                shift
+                shift
+                ;;
+
+        # undocumented because it ignores --file (fixme)
+        --refresh)
+                yes "" | make oldconfig
+                ;;
+
+        *)
+                usage
+                ;;
+        esac
+done
+
diff --git a/scripts/ihex2fw.c b/scripts/ihex2fw.c
new file mode 100644
index 000000000000..8f7fdaa9e010
--- /dev/null
+++ b/scripts/ihex2fw.c
@@ -0,0 +1,268 @@
+/*
+ * Parser/loader for IHEX formatted data.
+ *
+ * Copyright © 2008 David Woodhouse <dwmw2@infradead.org>
+ * Copyright © 2005 Jan Harkes <jaharkes@cs.cmu.edu>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <stdint.h>
+#include <arpa/inet.h>
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#define _GNU_SOURCE
+#include <getopt.h>
+
+
+struct ihex_binrec {
+        struct ihex_binrec *next; /* not part of the real data structure */
+        uint32_t addr;
+        uint16_t len;
+        uint8_t data[];
+};
+
+/**
+ * nybble/hex are little helpers to parse hexadecimal numbers to a byte value
+ **/
+static uint8_t nybble(const uint8_t n)
+{
+       if      (n >= '0' && n <= '9') return n - '0';
+       else if (n >= 'A' && n <= 'F') return n - ('A' - 10);
+       else if (n >= 'a' && n <= 'f') return n - ('a' - 10);
+       return 0;
+}
+
+static uint8_t hex(const uint8_t *data, uint8_t *crc)
+{
+       uint8_t val = (nybble(data[0]) << 4) | nybble(data[1]);
+       *crc += val;
+       return val;
+}
+
+static int process_ihex(uint8_t *data, ssize_t size);
+static void file_record(struct ihex_binrec *record);
+static int output_records(int outfd);
+
+static int sort_records = 0;
+static int wide_records = 0;
+
+int usage(void)
+{
+        fprintf(stderr, "ihex2fw: Convert ihex files into binary "
+                "representation for use by Linux kernel\n");
+        fprintf(stderr, "usage: ihex2fw [<options>] <src.HEX> <dst.fw>\n");
+        fprintf(stderr, "       -w: wide records (16-bit length)\n");
+        fprintf(stderr, "       -s: sort records by address\n");
+        return 1;
+}
+
+int main(int argc, char **argv)
+{
+        int infd, outfd;
+        struct stat st;
+        uint8_t *data;
+        int opt;
+
+        while ((opt = getopt(argc, argv, "ws")) != -1) {
+                switch (opt) {
+                case 'w':
+                        wide_records = 1;
+                        break;
+                case 's':
+                        sort_records = 1;
+                        break;
+                default:
+                        return usage();
+                }
+        }
+
+        if (optind + 2 != argc)
+                return usage();
+
+        if (!strcmp(argv[optind], "-"))
+            infd = 0;
+        else
+                infd = open(argv[optind], O_RDONLY);
+        if (infd == -1) {
+                fprintf(stderr, "Failed to open source file: %s",
+                        strerror(errno));
+                return usage();
+        }
+        if (fstat(infd, &st)) {
+                perror("stat");
+                return 1;
+        }
+        data = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, infd, 0);
+        if (data == MAP_FAILED) {
+                perror("mmap");
+                return 1;
+        }
+
+        if (!strcmp(argv[optind+1], "-"))
+            outfd = 1;
+        else
+                outfd = open(argv[optind+1], O_TRUNC|O_CREAT|O_WRONLY, 0644);
+        if (outfd == -1) {
+                fprintf(stderr, "Failed to open destination file: %s",
+                        strerror(errno));
+                return usage();
+        }
+        if (process_ihex(data, st.st_size))
+                return 1;
+
+        output_records(outfd);
+        return 0;
+}
+
+static int process_ihex(uint8_t *data, ssize_t size)
+{
+        struct ihex_binrec *record;
+        uint32_t offset = 0;
+        uint8_t type, crc = 0, crcbyte = 0;
+        int i, j;
+        int line = 1;
+        int len;
+
+        i = 0;
+next_record:
+        /* search for the start of record character */
+        while (i < size) {
+                if (data[i] == '\n') line++;
+                if (data[i++] == ':') break;
+        }
+
+        /* Minimum record length would be about 10 characters */
+        if (i + 10 > size) {
+                fprintf(stderr, "Can't find valid record at line %d\n", line);
+                return -EINVAL;
+        }
+
+        len = hex(data + i, &crc); i += 2;
+        if (wide_records) {
+                len <<= 8;
+                len += hex(data + i, &crc); i += 2;
+        }
+        record = malloc((sizeof (*record) + len + 3) & ~3);
+        if (!record) {
+                fprintf(stderr, "out of memory for records\n");
+                return -ENOMEM;
+        }
+        memset(record, 0, (sizeof(*record) + len + 3) & ~3);
+        record->len = len;
+
+        /* now check if we have enough data to read everything */
+        if (i + 8 + (record->len * 2) > size) {
+                fprintf(stderr, "Not enough data to read complete record at line %d\n",
+                        line);
+                return -EINVAL;
+        }
+
+        record->addr  = hex(data + i, &crc) << 8; i += 2;
+        record->addr |= hex(data + i, &crc); i += 2;
+        type = hex(data + i, &crc); i += 2;
+
+        for (j = 0; j < record->len; j++, i += 2)
+                record->data[j] = hex(data + i, &crc);
+
+        /* check CRC */
+        crcbyte = hex(data + i, &crc); i += 2;
+        if (crc != 0) {
+                fprintf(stderr, "CRC failure at line %d: got 0x%X, expected 0x%X\n",
+                        line, crcbyte, (unsigned char)(crcbyte-crc));
+                return -EINVAL;
+        }
+
+        /* Done reading the record */
+        switch (type) {
+        case 0:
+                /* old style EOF record? */
+                if (!record->len)
+                        break;
+
+                record->addr += offset;
+                file_record(record);
+                goto next_record;
+
+        case 1: /* End-Of-File Record */
+                if (record->addr || record->len) {
+                        fprintf(stderr, "Bad EOF record (type 01) format at line %d",
+                                line);
+                        return -EINVAL;
+                }
+                break;
+
+        case 2: /* Extended Segment Address Record (HEX86) */
+        case 4: /* Extended Linear Address Record (HEX386) */
+                if (record->addr || record->len != 2) {
+                        fprintf(stderr, "Bad HEX86/HEX386 record (type %02X) at line %d\n",
+                                type, line);
+                        return -EINVAL;
+                }
+
+                /* We shouldn't really be using the offset for HEX86 because
+                 * the wraparound case is specified quite differently. */
+                offset = record->data[0] << 8 | record->data[1];
+                offset <<= (type == 2 ? 4 : 16);
+                goto next_record;
+
+        case 3: /* Start Segment Address Record */
+        case 5: /* Start Linear Address Record */
+                if (record->addr || record->len != 4) {
+                        fprintf(stderr, "Bad Start Address record (type %02X) at line %d\n",
+                                type, line);
+                        return -EINVAL;
+                }
+
+                /* These records contain the CS/IP or EIP where execution
+                 * starts. Don't really know what to do with them. */
+                goto next_record;
+
+        default:
+                fprintf(stderr, "Unknown record (type %02X)\n", type);
+                return -EINVAL;
+        }
+
+        return 0;
+}
+
+static struct ihex_binrec *records;
+
+static void file_record(struct ihex_binrec *record)
+{
+        struct ihex_binrec **p = &records;
+
+        while ((*p) && (!sort_records || (*p)->addr < record->addr))
+                p = &((*p)->next);
+
+        record->next = *p;
+        *p = record;
+}
+
+static int output_records(int outfd)
+{
+        unsigned char zeroes[6] = {0, 0, 0, 0, 0, 0};
+        struct ihex_binrec *p = records;
+
+        while (p) {
+                uint16_t writelen = (p->len + 9) & ~3;
+
+                p->addr = htonl(p->addr);
+                p->len = htons(p->len);
+                write(outfd, &p->addr, writelen);
+                p = p->next;
+        }
+        /* EOF record is zero length, since we don't bother to represent
+           the type field in the binary version */
+        write(outfd, zeroes, 6);
+        return 0;
+}
diff --git a/scripts/tags.sh b/scripts/tags.sh
index 9e3451d2c3a1..fdbe78bb5e2b 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -24,6 +24,11 @@ else
         tree=${srctree}/
 fi
 
+# Detect if ALLSOURCE_ARCHS is set. If not, we assume SRCARCH
+if [ "${ALLSOURCE_ARCHS}" = "" ]; then
+        ALLSOURCE_ARCHS=${SRCARCH}
+fi
+
 # find sources in arch/$ARCH
 find_arch_sources()
 {
@@ -54,26 +59,29 @@ find_other_sources()
 find_sources()
 {
         find_arch_sources $1 "$2"
-        find_include_sources "$2"
-        find_other_sources "$2"
 }
 
 all_sources()
 {
-        find_sources $SRCARCH '*.[chS]'
+        for arch in $ALLSOURCE_ARCHS
+        do
+                find_sources $arch '*.[chS]'
+        done
         if [ ! -z "$archinclude" ]; then
                 find_arch_include_sources $archinclude '*.[chS]'
         fi
+        find_include_sources '*.[chS]'
+        find_other_sources '*.[chS]'
 }
 
 all_kconfigs()
 {
-        find_sources $SRCARCH 'Kconfig*'
+        find_sources $ALLSOURCE_ARCHS 'Kconfig*'
 }
 
 all_defconfigs()
 {
-        find_sources $SRCARCH "defconfig"
+        find_sources $ALLSOURCE_ARCHS "defconfig"
 }
 
 docscope()