diff options
Diffstat (limited to 'arch/arc')
| -rw-r--r-- | arch/arc/kernel/disasm.c | 2 | ||||
| -rw-r--r-- | arch/arc/kernel/process.c | 27 | ||||
| -rw-r--r-- | arch/arc/kernel/smp.c | 2 | ||||
| -rw-r--r-- | arch/arc/kernel/stacktrace.c | 7 | ||||
| -rw-r--r-- | arch/arc/kernel/troubleshoot.c | 3 | ||||
| -rw-r--r-- | arch/arc/mm/init.c | 23 | ||||
| -rw-r--r-- | arch/arc/plat-arcfpga/Kconfig | 2 |
7 files changed, 8 insertions, 58 deletions
diff --git a/arch/arc/kernel/disasm.c b/arch/arc/kernel/disasm.c index df957a4dbd60..b8a549c4f540 100644 --- a/arch/arc/kernel/disasm.c +++ b/arch/arc/kernel/disasm.c @@ -535,4 +535,4 @@ int __kprobes disasm_next_pc(unsigned long pc, struct pt_regs *regs, return instr.is_branch; } -#endif /* CONFIG_KGDB || CONFIG_MISALIGN_ACCESS || CONFIG_KPROBES */ +#endif /* CONFIG_KGDB || CONFIG_ARC_MISALIGN_ACCESS || CONFIG_KPROBES */ diff --git a/arch/arc/kernel/process.c b/arch/arc/kernel/process.c index 0a7531d99294..cad66851e0c4 100644 --- a/arch/arc/kernel/process.c +++ b/arch/arc/kernel/process.c @@ -41,37 +41,12 @@ SYSCALL_DEFINE0(arc_gettls) return task_thread_info(current)->thr_ptr; } -static inline void arch_idle(void) +void arch_cpu_idle(void) { /* sleep, but enable all interrupts before committing */ __asm__("sleep 0x3"); } -void cpu_idle(void) -{ - /* Since we SLEEP in idle loop, TIF_POLLING_NRFLAG can't be set */ - - /* endless idle loop with no priority at all */ - while (1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - -doze: - local_irq_disable(); - if (!need_resched()) { - arch_idle(); - goto doze; - } else { - local_irq_enable(); - } - - rcu_idle_exit(); - tick_nohz_idle_exit(); - - schedule_preempt_disabled(); - } -} - asmlinkage void ret_from_fork(void); /* Layout of Child kernel mode stack as setup at the end of this function is diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c index 3af3e06dcf02..5c7fd603d216 100644 --- a/arch/arc/kernel/smp.c +++ b/arch/arc/kernel/smp.c @@ -141,7 +141,7 @@ void __cpuinit start_kernel_secondary(void) local_irq_enable(); preempt_disable(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); } /* diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c index a63ff842564b..ca0207b9d5b6 100644 --- a/arch/arc/kernel/stacktrace.c +++ b/arch/arc/kernel/stacktrace.c @@ -220,13 +220,6 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) show_stacktrace(tsk, NULL); } -/* Expected by Rest of kernel code */ -void dump_stack(void) -{ - show_stacktrace(NULL, NULL); -} -EXPORT_SYMBOL(dump_stack); - /* Another API expected by schedular, shows up in "ps" as Wait Channel * Ofcourse just returning schedule( ) would be pointless so unwind until * the function is not in schedular code diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c index a39d5812cc09..11c301b81c92 100644 --- a/arch/arc/kernel/troubleshoot.c +++ b/arch/arc/kernel/troubleshoot.c @@ -75,7 +75,7 @@ void print_task_path_n_nm(struct task_struct *tsk, char *buf) } done: - pr_info("%s, TGID %u\n", path_nm, tsk->tgid); + pr_info("Path: %s\n", path_nm); } EXPORT_SYMBOL(print_task_path_n_nm); @@ -174,6 +174,7 @@ void show_regs(struct pt_regs *regs) return; print_task_path_n_nm(tsk, buf); + show_regs_print_info(KERN_INFO); if (current->thread.cause_code) show_ecr_verbose(regs); diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c index 6634cf50e3b4..4a177365b2c4 100644 --- a/arch/arc/mm/init.c +++ b/arch/arc/mm/init.c @@ -141,37 +141,18 @@ void __init mem_init(void) PAGES_TO_KB(reserved_pages)); } -static void __init free_init_pages(const char *what, unsigned long begin, - unsigned long end) -{ - unsigned long addr; - - pr_info("Freeing %s: %ldk [%lx] to [%lx]\n", - what, TO_KB(end - begin), begin, end); - - /* need to check that the page we free is not a partial page */ - for (addr = begin; addr + PAGE_SIZE <= end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } -} - /* * free_initmem: Free all the __init memory. */ void __init_refok free_initmem(void) { - free_init_pages("unused kernel memory", - (unsigned long)__init_begin, - (unsigned long)__init_end); + free_initmem_default(0); } #ifdef CONFIG_BLK_DEV_INITRD void __init free_initrd_mem(unsigned long start, unsigned long end) { - free_init_pages("initrd memory", start, end); + free_reserved_area(start, end, 0, "initrd"); } #endif diff --git a/arch/arc/plat-arcfpga/Kconfig b/arch/arc/plat-arcfpga/Kconfig index b41e786cdbc0..295cefeb25d3 100644 --- a/arch/arc/plat-arcfpga/Kconfig +++ b/arch/arc/plat-arcfpga/Kconfig @@ -53,7 +53,7 @@ menuconfig ARC_HAS_BVCI_LAT_UNIT bool "BVCI Bus Latency Unit" depends on ARC_BOARD_ML509 || ARC_BOARD_ANGEL4 help - IP to add artifical latency to BVCI Bus Based FPGA builds. + IP to add artificial latency to BVCI Bus Based FPGA builds. The default latency (even worst case) for FPGA is non-realistic (~10 SDRAM, ~5 SSRAM). |