Commit 65e5d002 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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
parents 38567333 cb4d3eae
......@@ -1281,7 +1281,7 @@ config SMP
config SMP_ON_UP
bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
depends on EXPERIMENTAL
depends on SMP && !XIP
depends on SMP && !XIP_KERNEL
default y
help
SMP kernels contain instructions which fail on non-SMP processors.
......
......@@ -285,7 +285,7 @@ static inline int fls(int x)
if (__builtin_constant_p(x))
return constant_fls(x);
asm("clz\t%0, %1" : "=r" (ret) : "r" (x) : "cc");
asm("clz\t%0, %1" : "=r" (ret) : "r" (x));
ret = 32 - ret;
return ret;
}
......
......@@ -115,4 +115,6 @@ static inline void init_fixed_sched_clock(struct clock_data *cd,
}
}
extern void sched_clock_postinit(void);
#endif
......@@ -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
/*
......
......@@ -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
......@@ -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);
}
......@@ -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())
......
......@@ -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;
......
......@@ -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);
......
......@@ -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
}
......@@ -25,11 +25,15 @@ ENTRY(__udelay)
ldr r2, .LC1
mul r0, r2, r0
ENTRY(__const_udelay) @ 0 <= r0 <= 0x7fffff06
mov r1, #-1
ldr r2, .LC0
ldr r2, [r2] @ max = 0x01ffffff
add r0, r0, r1, lsr #32-14
mov r0, r0, lsr #14 @ max = 0x0001ffff
add r2, r2, r1, lsr #32-10
mov r2, r2, lsr #10 @ max = 0x00007fff
mul r0, r2, r0 @ max = 2^32-1
add r0, r0, r1, lsr #32-6
movs r0, r0, lsr #6
moveq pc, lr
......
......@@ -23,7 +23,6 @@
#include <asm/types.h>
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/mach/arch.h>
#include <mach/hardware.h>
#include "common.h"
......
......@@ -23,7 +23,6 @@
#include <asm/types.h>
#include <asm/mach-types.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/mach/arch.h>
#include <mach/irqs.h>
#include <mach/hardware.h>
......
......@@ -173,7 +173,7 @@ static unsigned int integrator_get(unsigned int cpu)
if (machine_is_integrator()) {
vco.s = (cm_osc >> 8) & 7;
} else if (machine_is_cintegrator()) {
} else {
vco.s = 1;
}
vco.v = cm_osc & 255;
......
......@@ -22,7 +22,6 @@
#include <mach/hardware.h>
#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/mach/map.h>
#include <asm/mach-types.h>
......
......@@ -30,10 +30,10 @@ static inline void cpu_enter_lowpower(void)
* Turn off coherency
*/
" mrc p15, 0, %0, c1, c0, 1\n"
" bic %0, %0, %2\n"
" bic %0, %0, #0x20\n"
" mcr p15, 0, %0, c1, c0, 1\n"
" mrc p15, 0, %0, c1, c0, 0\n"
" bic %0, %0, #0x04\n"
" bic %0, %0, %2\n"
" mcr p15, 0, %0, c1, c0, 0\n"
: "=&r" (v)
: "r" (0), "Ir" (CR_C)
......
......@@ -21,7 +21,6 @@
#include <asm/div64.h>
#include <mach/hardware.h>
#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>
#include <asm/irq.h>
......
......@@ -26,10 +26,10 @@ static inline void cpu_enter_lowpower(void)
* Turn off coherency
*/
" mrc p15, 0, %0, c1, c0, 1\n"
" bic %0, %0, %2\n"
" bic %0, %0, #0x20\n"
" mcr p15, 0, %0, c1, c0, 1\n"
" mrc p15, 0, %0, c1, c0, 0\n"
" bic %0, %0, #0x04\n"
" bic %0, %0, %2\n"
" mcr p15, 0, %0, c1, c0, 0\n"
: "=&r" (v)
: "r" (0), "Ir" (CR_C)
......
......@@ -577,7 +577,7 @@ EXPORT_SYMBOL(dma_map_sg);
* dma_unmap_sg - unmap a set of SG buffers mapped by dma_map_sg
* @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
* @sg: list of buffers
* @nents: number of buffers to unmap (returned from dma_map_sg)
* @nents: number of buffers to unmap (same as was passed to dma_map_sg)
* @dir: DMA transfer direction (same as was passed to dma_map_sg)
*
* Unmap a set of streaming mode DMA translations. Again, CPU access
......
......@@ -159,7 +159,9 @@ ENTRY(cpu_v7_set_pte_ext)
tstne r1, #L_PTE_PRESENT
moveq r3, #0
str r3, [r0, #2048]!
ARM( str r3, [r0, #2048]! )
THUMB( add r0, r0, #2048 )
THUMB( str r3, [r0] )
mcr p15, 0, r0, c7, c10, 1 @ flush_pte
#endif
mov pc, lr
......
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