Merge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm

* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: fix missing branch in __error_a
  ARM: fix /proc/$PID/stack on SMP
  ARM: Fix build regression on SA11x0, PXA, and H720x targets
  ARM: 6625/1: use memblock memory regions for "System RAM" I/O resources
  ARM: fix wrongly patched constants
  ARM: 6624/1: fix dependency for CONFIG_SMP_ON_UP
  ARM: 6623/1: Thumb-2: Fix out-of-range offset for Thumb-2 in proc-v7.S
  ARM: 6622/1: fix dma_unmap_sg() documentation
  ARM: 6621/1: bitops: remove condition code clobber for CLZ
  ARM: 6620/1: Change misleading warning when CONFIG_CMDLINE_FORCE is used
  ARM: 6619/1: nommu: avoid mapping vectors page when !CONFIG_MMU
  ARM: sched_clock: make minsec argument to clocks_calc_mult_shift() zero
  ARM: sched_clock: allow init_sched_clock() to be called early
  ARM: integrator: fix compile warning in cpu.c
  ARM: 6616/1: Fix ep93xx-fb init/exit annotations
  ARM: twd: fix display of twd frequency
  ARM: udelay: prevent math rounding resulting in short udelays

7 files changed, 32 insertions, 18 deletions

diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S
index bbecaac1e01..8f57515bbdb 100644
--- a/arch/arm/kernel/head-common.S
+++ b/arch/arm/kernel/head-common.S
@@ -60,6 +60,8 @@ str_a1:	.asciz	"\nError: unrecognized/unsupported machine ID (r1 = 0x"
 str_a2: .asciz  ").\n\nAvailable machine support:\n\nID (hex)\tNAME\n"
 str_a3: .asciz  "\nPlease check your kernel config and/or bootloader.\n"
         .align
+#else
+        b       __error
 #endif
 
 /*
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index e76fcaadce0..94bbedbed63 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -483,6 +483,7 @@ unsigned long arch_randomize_brk(struct mm_struct *mm)
         return randomize_range(mm->brk, range_end, 0) ? : mm->brk;
 }
 
+#ifdef CONFIG_MMU
 /*
  * The vectors page is always readable from user space for the
  * atomic helpers and the signal restart code.  Let's declare a mapping
@@ -503,3 +504,4 @@ const char *arch_vma_name(struct vm_area_struct *vma)
 {
         return (vma->vm_start == 0xffff0000) ? "[vectors]" : NULL;
 }
+#endif
diff --git a/arch/arm/kernel/sched_clock.c b/arch/arm/kernel/sched_clock.c
index 2cdcc9287c7..9a46370fe9d 100644
--- a/arch/arm/kernel/sched_clock.c
+++ b/arch/arm/kernel/sched_clock.c
@@ -34,7 +34,7 @@ void __init init_sched_clock(struct clock_data *cd, void (*update)(void),
         sched_clock_update_fn = update;
 
         /* calculate the mult/shift to convert counter ticks to ns. */
-        clocks_calc_mult_shift(&cd->mult, &cd->shift, rate, NSEC_PER_SEC, 60);
+        clocks_calc_mult_shift(&cd->mult, &cd->shift, rate, NSEC_PER_SEC, 0);
 
         r = rate;
         if (r >= 4000000) {
@@ -60,10 +60,15 @@ void __init init_sched_clock(struct clock_data *cd, void (*update)(void),
          * sets the initial epoch.
          */
         sched_clock_timer.data = msecs_to_jiffies(w - (w / 10));
-        sched_clock_poll(sched_clock_timer.data);
+        update();
 
         /*
          * Ensure that sched_clock() starts off at 0ns
          */
         cd->epoch_ns = 0;
 }
+
+void __init sched_clock_postinit(void)
+{
+        sched_clock_poll(sched_clock_timer.data);
+}
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 3455ad33de4..420b8d6485d 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -518,25 +518,21 @@ setup_ramdisk(int doload, int prompt, int image_start, unsigned int rd_sz)
 #endif
 }
 
-static void __init
-request_standard_resources(struct meminfo *mi, struct machine_desc *mdesc)
+static void __init request_standard_resources(struct machine_desc *mdesc)
 {
+        struct memblock_region *region;
         struct resource *res;
-        int i;
 
         kernel_code.start   = virt_to_phys(_text);
         kernel_code.end     = virt_to_phys(_etext - 1);
         kernel_data.start   = virt_to_phys(_sdata);
         kernel_data.end     = virt_to_phys(_end - 1);
 
-        for (i = 0; i < mi->nr_banks; i++) {
-                if (mi->bank[i].size == 0)
-                        continue;
-
+        for_each_memblock(memory, region) {
                 res = alloc_bootmem_low(sizeof(*res));
                 res->name  = "System RAM";
-                res->start = mi->bank[i].start;
-                res->end   = mi->bank[i].start + mi->bank[i].size - 1;
+                res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));
+                res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1;
                 res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
 
                 request_resource(&iomem_resource, res);
@@ -650,15 +646,17 @@ static int __init parse_tag_revision(const struct tag *tag)
 
 __tagtable(ATAG_REVISION, parse_tag_revision);
 
-#ifndef CONFIG_CMDLINE_FORCE
 static int __init parse_tag_cmdline(const struct tag *tag)
 {
+#ifndef CONFIG_CMDLINE_FORCE
         strlcpy(default_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE);
+#else
+        pr_warning("Ignoring tag cmdline (using the default kernel command line)\n");
+#endif /* CONFIG_CMDLINE_FORCE */
         return 0;
 }
 
 __tagtable(ATAG_CMDLINE, parse_tag_cmdline);
-#endif /* CONFIG_CMDLINE_FORCE */
 
 /*
  * Scan the tag table for this tag, and call its parse function.
@@ -857,7 +855,7 @@ void __init setup_arch(char **cmdline_p)
         arm_memblock_init(&meminfo, mdesc);
 
         paging_init(mdesc);
-        request_standard_resources(&meminfo, mdesc);
+        request_standard_resources(mdesc);
 
 #ifdef CONFIG_SMP
         if (is_smp())
diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index dd790745b3e..fd9156698ab 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -114,7 +114,7 @@ static void __cpuinit twd_calibrate_rate(void)
                 twd_timer_rate = (0xFFFFFFFFU - count) * (HZ / 5);
 
                 printk("%lu.%02luMHz.\n", twd_timer_rate / 1000000,
-                        (twd_timer_rate / 100000) % 100);
+                        (twd_timer_rate / 1000000) % 100);
         }
 
         load = twd_timer_rate / HZ;
diff --git a/arch/arm/kernel/stacktrace.c b/arch/arm/kernel/stacktrace.c
index c2e112e1a05..381d23a497c 100644
--- a/arch/arm/kernel/stacktrace.c
+++ b/arch/arm/kernel/stacktrace.c
@@ -94,10 +94,13 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
         if (tsk != current) {
 #ifdef CONFIG_SMP
                 /*
-                 * What guarantees do we have here that 'tsk'
-                 * is not running on another CPU?
+                 * What guarantees do we have here that 'tsk' is not
+                 * running on another CPU?  For now, ignore it as we
+                 * can't guarantee we won't explode.
                  */
-                BUG();
+                if (trace->nr_entries < trace->max_entries)
+                        trace->entries[trace->nr_entries++] = ULONG_MAX;
+                return;
 #else
                 data.no_sched_functions = 1;
                 frame.fp = thread_saved_fp(tsk);
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index f1e2eb19a67..3d76bf23373 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -29,6 +29,7 @@
 
 #include <asm/leds.h>
 #include <asm/thread_info.h>
+#include <asm/sched_clock.h>
 #include <asm/stacktrace.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
@@ -163,5 +164,8 @@ void __init time_init(void)
 {
         system_timer = machine_desc->timer;
         system_timer->init();
+#ifdef CONFIG_HAVE_SCHED_CLOCK
+        sched_clock_postinit();
+#endif
 }