diff options
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/Kconfig | 2 | ||||
-rw-r--r-- | arch/arm/include/asm/bitops.h | 2 | ||||
-rw-r--r-- | arch/arm/include/asm/sched_clock.h | 2 | ||||
-rw-r--r-- | arch/arm/kernel/head-common.S | 2 | ||||
-rw-r--r-- | arch/arm/kernel/process.c | 2 | ||||
-rw-r--r-- | arch/arm/kernel/sched_clock.c | 9 | ||||
-rw-r--r-- | arch/arm/kernel/setup.c | 22 | ||||
-rw-r--r-- | arch/arm/kernel/smp_twd.c | 2 | ||||
-rw-r--r-- | arch/arm/kernel/stacktrace.c | 9 | ||||
-rw-r--r-- | arch/arm/kernel/time.c | 4 | ||||
-rw-r--r-- | arch/arm/lib/delay.S | 4 | ||||
-rw-r--r-- | arch/arm/mach-h720x/h7201-eval.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-h720x/h7202-eval.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-integrator/cpu.c | 2 | ||||
-rw-r--r-- | arch/arm/mach-pxa/generic.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-s5pv310/hotplug.c | 4 | ||||
-rw-r--r-- | arch/arm/mach-sa1100/generic.c | 1 | ||||
-rw-r--r-- | arch/arm/mach-tegra/hotplug.c | 4 | ||||
-rw-r--r-- | arch/arm/mm/dma-mapping.c | 2 | ||||
-rw-r--r-- | arch/arm/mm/proc-v7.S | 4 |
20 files changed, 49 insertions, 31 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index e2f8011..629ff82 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -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. diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h index 338ff19..7b1bb2b 100644 --- a/arch/arm/include/asm/bitops.h +++ b/arch/arm/include/asm/bitops.h @@ -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; } diff --git a/arch/arm/include/asm/sched_clock.h b/arch/arm/include/asm/sched_clock.h index a84628b..c8e6ddf 100644 --- a/arch/arm/include/asm/sched_clock.h +++ b/arch/arm/include/asm/sched_clock.h @@ -115,4 +115,6 @@ static inline void init_fixed_sched_clock(struct clock_data *cd, } } +extern void sched_clock_postinit(void); + #endif diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S index bbecaac..8f57515 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 e76fcaa..94bbedb 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 2cdcc92..9a46370 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 3455ad3..420b8d6 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 dd79074..fd91566 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 c2e112e..381d23a 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 f1e2eb1..3d76bf2 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 } diff --git a/arch/arm/lib/delay.S b/arch/arm/lib/delay.S index 8d6a876..3c9a05c 100644 --- a/arch/arm/lib/delay.S +++ b/arch/arm/lib/delay.S @@ -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 diff --git a/arch/arm/mach-h720x/h7201-eval.c b/arch/arm/mach-h720x/h7201-eval.c index 79f0b89..629454d 100644 --- a/arch/arm/mach-h720x/h7201-eval.c +++ b/arch/arm/mach-h720x/h7201-eval.c @@ -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" diff --git a/arch/arm/mach-h720x/h7202-eval.c b/arch/arm/mach-h720x/h7202-eval.c index cc28b1e..e9f46b6 100644 --- a/arch/arm/mach-h720x/h7202-eval.c +++ b/arch/arm/mach-h720x/h7202-eval.c @@ -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> diff --git a/arch/arm/mach-integrator/cpu.c b/arch/arm/mach-integrator/cpu.c index a3fbcb3a..fbb4577 100644 --- a/arch/arm/mach-integrator/cpu.c +++ b/arch/arm/mach-integrator/cpu.c @@ -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; diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index d6e15f7..f5d91ef 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -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> diff --git a/arch/arm/mach-s5pv310/hotplug.c b/arch/arm/mach-s5pv310/hotplug.c index afa5392..c24235c 100644 --- a/arch/arm/mach-s5pv310/hotplug.c +++ b/arch/arm/mach-s5pv310/hotplug.c @@ -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) diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index 59d14f0..e21f347 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.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> diff --git a/arch/arm/mach-tegra/hotplug.c b/arch/arm/mach-tegra/hotplug.c index a5cb1ce..f329404 100644 --- a/arch/arm/mach-tegra/hotplug.c +++ b/arch/arm/mach-tegra/hotplug.c @@ -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) diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 6b48e0a..4771dba 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.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 diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index b49fab2..0c1172b 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -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 |