diff options
Diffstat (limited to 'arch/sparc')
-rw-r--r-- | arch/sparc/Kconfig | 2 | ||||
-rw-r--r-- | arch/sparc/include/asm/hugetlb.h | 1 | ||||
-rw-r--r-- | arch/sparc/include/asm/thread_info_32.h | 2 | ||||
-rw-r--r-- | arch/sparc/include/asm/thread_info_64.h | 2 | ||||
-rw-r--r-- | arch/sparc/kernel/hvtramp.S | 3 | ||||
-rw-r--r-- | arch/sparc/kernel/process_32.c | 21 | ||||
-rw-r--r-- | arch/sparc/kernel/process_64.c | 49 | ||||
-rw-r--r-- | arch/sparc/kernel/smp_32.c | 2 | ||||
-rw-r--r-- | arch/sparc/kernel/smp_64.c | 2 | ||||
-rw-r--r-- | arch/sparc/kernel/trampoline_64.S | 3 | ||||
-rw-r--r-- | arch/sparc/mm/init_32.c | 12 | ||||
-rw-r--r-- | arch/sparc/mm/init_64.c | 7 | ||||
-rw-r--r-- | arch/sparc/mm/tlb.c | 3 |
13 files changed, 33 insertions, 76 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index c85b761..e564115 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -384,6 +384,8 @@ config SERIAL_CONSOLE config SPARC_LEON bool "Sparc Leon processor family" depends on SPARC32 + select USB_EHCI_BIG_ENDIAN_MMIO + select USB_EHCI_BIG_ENDIAN_DESC ---help--- If you say Y here if you are running on a SPARC-LEON processor. The LEON processor is a synthesizable VHDL model of the diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h index 7eb57d2..e4cab46 100644 --- a/arch/sparc/include/asm/hugetlb.h +++ b/arch/sparc/include/asm/hugetlb.h @@ -2,6 +2,7 @@ #define _ASM_SPARC64_HUGETLB_H #include <asm/page.h> +#include <asm-generic/hugetlb.h> void set_huge_pte_at(struct mm_struct *mm, unsigned long addr, diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h index 25849ae..dd38075 100644 --- a/arch/sparc/include/asm/thread_info_32.h +++ b/arch/sparc/include/asm/thread_info_32.h @@ -132,8 +132,6 @@ register struct thread_info *current_thread_info_reg asm("g6"); #define _TIF_DO_NOTIFY_RESUME_MASK (_TIF_NOTIFY_RESUME | \ _TIF_SIGPENDING) -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #endif /* __KERNEL__ */ #endif /* _ASM_THREAD_INFO_H */ diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h index 269bd92..d5e5042 100644 --- a/arch/sparc/include/asm/thread_info_64.h +++ b/arch/sparc/include/asm/thread_info_64.h @@ -256,8 +256,6 @@ static inline bool test_and_clear_restore_sigmask(void) return true; } -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #define thread32_stack_is_64bit(__SP) (((__SP) & 0x1) != 0) #define test_thread_64bit_stack(__SP) \ ((test_thread_flag(TIF_32BIT) && !thread32_stack_is_64bit(__SP)) ? \ diff --git a/arch/sparc/kernel/hvtramp.S b/arch/sparc/kernel/hvtramp.S index 9365432..605c960 100644 --- a/arch/sparc/kernel/hvtramp.S +++ b/arch/sparc/kernel/hvtramp.S @@ -128,8 +128,7 @@ hv_cpu_startup: call smp_callin nop - call cpu_idle - mov 0, %o0 + call cpu_panic nop diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index 62eede1..c852410 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -64,23 +64,12 @@ extern void fpsave(unsigned long *, unsigned long *, void *, unsigned long *); struct task_struct *last_task_used_math = NULL; struct thread_info *current_set[NR_CPUS]; -/* - * the idle loop on a Sparc... ;) - */ -void cpu_idle(void) +/* Idle loop support. */ +void arch_cpu_idle(void) { - set_thread_flag(TIF_POLLING_NRFLAG); - - /* endless idle loop with no priority at all */ - for (;;) { - while (!need_resched()) { - if (sparc_idle) - (*sparc_idle)(); - else - cpu_relax(); - } - schedule_preempt_disabled(); - } + if (sparc_idle) + (*sparc_idle)(); + local_irq_enable(); } /* XXX cli/sti -> local_irq_xxx here, check this works once SMP is fixed. */ diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index cdb80b2..9fbf0d1 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -52,20 +52,17 @@ #include "kstack.h" -static void sparc64_yield(int cpu) +/* Idle loop support on sparc64. */ +void arch_cpu_idle(void) { if (tlb_type != hypervisor) { touch_nmi_watchdog(); - return; - } - - clear_thread_flag(TIF_POLLING_NRFLAG); - smp_mb__after_clear_bit(); - - while (!need_resched() && !cpu_is_offline(cpu)) { + } else { unsigned long pstate; - /* Disable interrupts. */ + /* The sun4v sleeping code requires that we have PSTATE.IE cleared over + * the cpu sleep hypervisor call. + */ __asm__ __volatile__( "rdpr %%pstate, %0\n\t" "andn %0, %1, %0\n\t" @@ -73,7 +70,7 @@ static void sparc64_yield(int cpu) : "=&r" (pstate) : "i" (PSTATE_IE)); - if (!need_resched() && !cpu_is_offline(cpu)) + if (!need_resched() && !cpu_is_offline(smp_processor_id())) sun4v_cpu_yield(); /* Re-enable interrupts. */ @@ -84,36 +81,16 @@ static void sparc64_yield(int cpu) : "=&r" (pstate) : "i" (PSTATE_IE)); } - - set_thread_flag(TIF_POLLING_NRFLAG); + local_irq_enable(); } -/* The idle loop on sparc64. */ -void cpu_idle(void) -{ - int cpu = smp_processor_id(); - - set_thread_flag(TIF_POLLING_NRFLAG); - - while(1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - - while (!need_resched() && !cpu_is_offline(cpu)) - sparc64_yield(cpu); - - rcu_idle_exit(); - tick_nohz_idle_exit(); - #ifdef CONFIG_HOTPLUG_CPU - if (cpu_is_offline(cpu)) { - sched_preempt_enable_no_resched(); - cpu_play_dead(); - } -#endif - schedule_preempt_disabled(); - } +void arch_cpu_idle_dead() +{ + sched_preempt_enable_no_resched(); + cpu_play_dead(); } +#endif #ifdef CONFIG_COMPAT static void show_regwindow32(struct pt_regs *regs) diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c index 9e7e6d7..e3f2b81 100644 --- a/arch/sparc/kernel/smp_32.c +++ b/arch/sparc/kernel/smp_32.c @@ -369,7 +369,7 @@ void __cpuinit sparc_start_secondary(void *arg) local_irq_enable(); wmb(); - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); /* We should never reach here! */ BUG(); diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index ca64d2a..77539ed 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -127,6 +127,8 @@ void __cpuinit smp_callin(void) /* idle thread is expected to have preempt disabled */ preempt_disable(); + + cpu_startup_entry(CPUHP_ONLINE); } void cpu_panic(void) diff --git a/arch/sparc/kernel/trampoline_64.S b/arch/sparc/kernel/trampoline_64.S index da1b781..2e973a2 100644 --- a/arch/sparc/kernel/trampoline_64.S +++ b/arch/sparc/kernel/trampoline_64.S @@ -407,8 +407,7 @@ after_lock_tlb: call smp_callin nop - call cpu_idle - mov 0, %o0 + call cpu_panic nop 1: b,a,pt %xcc, 1b diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index 48e0c03..4490c39 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -282,14 +282,8 @@ static void map_high_region(unsigned long start_pfn, unsigned long end_pfn) printk("mapping high region %08lx - %08lx\n", start_pfn, end_pfn); #endif - for (tmp = start_pfn; tmp < end_pfn; tmp++) { - struct page *page = pfn_to_page(tmp); - - ClearPageReserved(page); - init_page_count(page); - __free_page(page); - totalhigh_pages++; - } + for (tmp = start_pfn; tmp < end_pfn; tmp++) + free_highmem_page(pfn_to_page(tmp)); } void __init mem_init(void) @@ -347,8 +341,6 @@ void __init mem_init(void) map_high_region(start_pfn, end_pfn); } - totalram_pages += totalhigh_pages; - codepages = (((unsigned long) &_etext) - ((unsigned long)&_start)); codepages = PAGE_ALIGN(codepages) >> PAGE_SHIFT; datapages = (((unsigned long) &_edata) - ((unsigned long)&_etext)); diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 1588d33..6ac99d6 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2181,10 +2181,9 @@ unsigned long vmemmap_table[VMEMMAP_SIZE]; static long __meminitdata addr_start, addr_end; static int __meminitdata node_start; -int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node) +int __meminit vmemmap_populate(unsigned long vstart, unsigned long vend, + int node) { - unsigned long vstart = (unsigned long) start; - unsigned long vend = (unsigned long) (start + nr); unsigned long phys_start = (vstart - VMEMMAP_BASE); unsigned long phys_end = (vend - VMEMMAP_BASE); unsigned long addr = phys_start & VMEMMAP_CHUNK_MASK; @@ -2236,7 +2235,7 @@ void __meminit vmemmap_populate_print_last(void) } } -void vmemmap_free(struct page *memmap, unsigned long nr_pages) +void vmemmap_free(unsigned long start, unsigned long end) { } diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c index 272aa4f..83d89bc 100644 --- a/arch/sparc/mm/tlb.c +++ b/arch/sparc/mm/tlb.c @@ -87,7 +87,7 @@ static void tlb_batch_add_one(struct mm_struct *mm, unsigned long vaddr, if (!tb->active) { global_flush_tlb_page(mm, vaddr); flush_tsb_user_page(mm, vaddr); - return; + goto out; } if (nr == 0) @@ -98,6 +98,7 @@ static void tlb_batch_add_one(struct mm_struct *mm, unsigned long vaddr, if (nr >= TLB_BATCH_NR) flush_tlb_pending(); +out: put_cpu_var(tlb_batch); } |