C++ cpu_context函数代码示例

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本文整理汇总了C++中cpu_context函数的典型用法代码示例。如果您正苦于以下问题：C++ cpu_context函数的具体用法？C++ cpu_context怎么用？C++ cpu_context使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。

在下文中一共展示了cpu_context函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: local_flush_tlb_mm

void local_flush_tlb_mm(struct mm_struct *mm)
{
	int cpu = smp_processor_id();

	if (cpu_context(cpu, mm) != 0) {
#ifdef DEBUG_TLB
		printk("[tlbmm<%lu>]", (unsigned long)cpu_context(cpu, mm));
#endif
		drop_mmu_context(mm, cpu);
	}
}

开发者ID:Brainiarc7，项目名称:ralink_sdk，代码行数:11，代码来源:tlb-r3k.c

示例2: local_flush_tlb_mm

void local_flush_tlb_mm(struct mm_struct *mm)
{
	int cpu = smp_processor_id();

	if (cpu_context(cpu, mm) != 0)
		drop_mmu_context(mm,cpu);
}

开发者ID:12019，项目名称:hg556a_source，代码行数:7，代码来源:tlb-r8k.c

示例3: local_flush_tlb_page

void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
{
	int cpu = smp_processor_id();
	unsigned long flags;
	int oldpid, newpid;
	signed long idx;

	if (!cpu_context(cpu, vma->vm_mm))
		return;

	newpid = cpu_asid(cpu, vma->vm_mm);
	page &= PAGE_MASK;
	local_irq_save(flags);
	oldpid = read_c0_entryhi();
	write_c0_vaddr(page);
	write_c0_entryhi(newpid);
	tlb_probe();
	idx = read_c0_tlbset();
	if (idx < 0)
		goto finish;

	write_c0_entrylo(0);
	write_c0_entryhi(CKSEG0 + (idx << (PAGE_SHIFT + 1)));
	tlb_write();

finish:
	write_c0_entryhi(oldpid);
	local_irq_restore(flags);
}

开发者ID:12019，项目名称:hg556a_source，代码行数:29，代码来源:tlb-r8k.c

示例4: flush_tlb_mm

void flush_tlb_mm(struct mm_struct *mm)
{
	preempt_disable();

	if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
		smp_on_other_tlbs(flush_tlb_mm_ipi, mm);
	} else {
		cpumask_t mask = cpu_online_map;
		unsigned int cpu;

		cpu_clear(smp_processor_id(), mask);
		for_each_cpu_mask(cpu, mask)
			if (cpu_context(cpu, mm))
				cpu_context(cpu, mm) = 0;
	}
	local_flush_tlb_mm(mm);

	preempt_enable();
}

开发者ID:PennPanda，项目名称:linux-repo，代码行数:19，代码来源:smp.c

示例5: local_flush_tlb_range

void local_flush_tlb_range(struct mm_struct *mm, unsigned long start,
                           unsigned long end)
{
	int cpu = smp_processor_id();
	if (cpu_context(cpu, mm) != 0) {
		unsigned long flags;
		int size;

#ifdef DEBUG_TLB
		printk("[tlbrange<%02x,%08lx,%08lx>]",
		       (mm->context & ASID_MASK), start, end);
#endif
		local_irq_save(flags);
		size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
		size = (size + 1) >> 1;
		if (size <= NTLB_ENTRIES_HALF) {
			int oldpid = (read_c0_entryhi() & ASID_MASK);
			int newpid = (cpu_context(smp_processor_id(), mm)
				      & ASID_MASK);

			start &= (PAGE_MASK << 1);
			end += ((PAGE_SIZE << 1) - 1);
			end &= (PAGE_MASK << 1);
			while(start < end) {
				int idx;

				write_c0_entryhi(start | newpid);
				start += (PAGE_SIZE << 1);
				tlb_probe();
				idx = read_c0_index();
				write_c0_entrylo0(0);
				write_c0_entrylo1(0);
				write_c0_entryhi(KSEG0);
				if(idx < 0)
					continue;
				tlb_write_indexed();
			}
			write_c0_entryhi(oldpid);
		} else {
			drop_mmu_context(mm, cpu);
		}
		local_irq_restore(flags);
	}

开发者ID:Picture-Elements，项目名称:linux-2.4-peijse，代码行数:43，代码来源:tlb-andes.c

示例6: local_flush_tlb_range

void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
			   unsigned long end)
{
	struct mm_struct *mm = vma->vm_mm;
	int cpu = smp_processor_id();

	if (cpu_context(cpu, mm) != 0) {
		unsigned long flags;
		int size;

#ifdef DEBUG_TLB
		printk("[tlbrange<%lu,0x%08lx,0x%08lx>]",
			cpu_context(cpu, mm) & ASID_MASK, start, end);
#endif
		local_irq_save(flags);
		size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
		if (size <= current_cpu_data.tlbsize) {
			int oldpid = read_c0_entryhi() & ASID_MASK;
			int newpid = cpu_context(cpu, mm) & ASID_MASK;

			start &= PAGE_MASK;
			end += PAGE_SIZE - 1;
			end &= PAGE_MASK;
			while (start < end) {
				int idx;

				write_c0_entryhi(start | newpid);
				start += PAGE_SIZE;	/* BARRIER */
				tlb_probe();
				idx = read_c0_index();
				write_c0_entrylo0(0);
				write_c0_entryhi(KSEG0);
				if (idx < 0)		/* BARRIER */
					continue;
				tlb_write_indexed();
			}
			write_c0_entryhi(oldpid);
		} else {
			drop_mmu_context(mm, cpu);
		}
		local_irq_restore(flags);
	}

开发者ID:jakev，项目名称:CobraDroidBeta，代码行数:42，代码来源:tlb-r3k.c

示例7: flush_tlb_mm

void flush_tlb_mm(struct mm_struct *mm)
{
	if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
		smp_call_function(flush_tlb_mm_ipi, (void *)mm, 1, 1);
	} else {
		int i;
		for (i = 0; i < smp_num_cpus; i++)
			if (smp_processor_id() != i)
				cpu_context(i, mm) = 0;
	}
	local_flush_tlb_mm(mm);
}

开发者ID:SimonKagstrom，项目名称:mci500h-linux-2.4.27，代码行数:12，代码来源:smp.c

示例8: local_flush_tlb_range

void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
	unsigned long end)
{
	struct mm_struct *mm = vma->vm_mm;
	int cpu = smp_processor_id();

	if (cpu_context(cpu, mm) != 0) {
		unsigned long size, flags;
		unsigned long config6_flags;

		ENTER_CRITICAL(flags);
		disable_pgwalker(config6_flags);
		size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
		size = (size + 1) >> 1;
		if (size <= current_cpu_data.tlbsize/2) {
			int oldpid = read_c0_entryhi();
			int newpid = cpu_asid(cpu, mm);

			start &= (PAGE_MASK << 1);
			end += ((PAGE_SIZE << 1) - 1);
			end &= (PAGE_MASK << 1);
			while (start < end) {
				int idx;

				write_c0_entryhi(start | newpid);
				start += (PAGE_SIZE << 1);
				mtc0_tlbw_hazard();
				tlb_probe();
				tlb_probe_hazard();
				idx = read_c0_index();
				write_c0_entrylo0(0);
				write_c0_entrylo1(0);
				if (idx < 0)
					continue;
				/* Make sure all entries differ. */
#ifndef CONFIG_NLM_VMIPS
				write_c0_entryhi(UNIQUE_ENTRYHI(idx));
#else
				__write_64bit_c0_register($10, 0, (UNIQUE_VMIPS_ENTRYHI(idx)));
#endif
				mtc0_tlbw_hazard();
				tlb_write_indexed();
			}
			tlbw_use_hazard();
			write_c0_entryhi(oldpid);
		} else {
			drop_mmu_context(mm, cpu);
		}
		FLUSH_ITLB;
		enable_pgwalker(config6_flags);
		EXIT_CRITICAL(flags);
	}

开发者ID:akennedy-adtran，项目名称:linux_mmc_2.6.32.9，代码行数:52，代码来源:tlb-r4k.c

示例9: local_flush_tlb_mm

/* All entries common to a mm share an asid.  To effectively flush
   these entries, we just bump the asid. */
void local_flush_tlb_mm(struct mm_struct *mm)
{
	int cpu;

	preempt_disable();

	cpu = smp_processor_id();

	if (cpu_context(cpu, mm) != 0) {
		drop_mmu_context(mm, cpu);
	}

	preempt_enable();
}

开发者ID:acton393，项目名称:linux，代码行数:16，代码来源:tlb-r4k.c

示例10: local_flush_tlb_range

void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
			   unsigned long end)
{
	struct mm_struct *mm = vma->vm_mm;
	unsigned int cpu = smp_processor_id();

	if (cpu_context(cpu, mm) != NO_CONTEXT) {
		unsigned long flags;
		int size;

		local_irq_save(flags);
		size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
		if (size > (MMU_NTLB_ENTRIES/4)) { /* Too many TLB to flush */
			cpu_context(cpu, mm) = NO_CONTEXT;
			if (mm == current->mm)
				activate_context(mm, cpu);
		} else {
			unsigned long asid;
			unsigned long saved_asid = MMU_NO_ASID;

			asid = cpu_asid(cpu, mm);
			start &= PAGE_MASK;
			end += (PAGE_SIZE - 1);
			end &= PAGE_MASK;
			if (mm != current->mm) {
				saved_asid = get_asid();
				set_asid(asid);
			}
			while (start < end) {
				local_flush_tlb_one(asid, start);
				start += PAGE_SIZE;
			}
			if (saved_asid != MMU_NO_ASID)
				set_asid(saved_asid);
		}
		local_irq_restore(flags);
	}

开发者ID:mfleming，项目名称:linux-2.6，代码行数:37，代码来源:tlbflush_32.c

示例11: log_data

static void log_data(const omti8621_state *state) {
	if (verbose > 0) {
		int i;
		logerror("%s: OMTI data (length=%02x)", cpu_context(state->device),
				state->data_length);
		for (i = 0; i < state->data_length && i < OMTI_DISK_SECTOR_SIZE; i++) {
			logerror(" %02x", state->data_buffer[i]);
		}

		if (i < state->data_length) {
			logerror(" ...");
		}
		logerror("\n");
	}
}

开发者ID:clobber，项目名称:UME，代码行数:15，代码来源:omti8621.c

示例12: local_flush_tlb_range

void local_flush_tlb_range(struct mm_struct *mm, unsigned long start,
				unsigned long end)
{
	int cpu = smp_processor_id();

	if (cpu_context(cpu, mm) != 0) {
		unsigned long flags;
		int size;

#ifdef DEBUG_TLB
		printk("[tlbrange<%02x,%08lx,%08lx>]", (mm->context & ASID_MASK),
		       start, end);
#endif
		local_irq_save(flags);
		size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
		size = (size + 1) >> 1;
		if(size <= current_cpu_data.tlbsize/2) {
			int oldpid = read_c0_entryhi() & ASID_MASK;
			int newpid = cpu_asid(cpu, mm);

			start &= (PAGE_MASK << 1);
			end += ((PAGE_SIZE << 1) - 1);
			end &= (PAGE_MASK << 1);
			while(start < end) {
				int idx;

				write_c0_entryhi(start | newpid);
				start += (PAGE_SIZE << 1);
				BARRIER;
				tlb_probe();
				BARRIER;
				idx = read_c0_index();
				write_c0_entrylo0(0);
				write_c0_entrylo1(0);
				if(idx < 0)
					continue;
				/* Make sure all entries differ. */
				write_c0_entryhi(XKPHYS+idx*0x2000);
				BARRIER;
				tlb_write_indexed();
				BARRIER;
			}
			write_c0_entryhi(oldpid);
		} else {
			drop_mmu_context(mm, cpu);
		}
		local_irq_restore(flags);
	}

开发者ID:SimonKagstrom，项目名称:mci500h-linux-2.4.27，代码行数:48，代码来源:tlb-r4k.c

示例13: local_flush_tlb_range

void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
	unsigned long end)
{
	struct mm_struct *mm = vma->vm_mm;
	int cpu = smp_processor_id();
	unsigned long flags;
	int oldpid, newpid, size;

	if (!cpu_context(cpu, mm))
		return;

	size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
	size = (size + 1) >> 1;

	local_irq_save(flags);

	if (size > TFP_TLB_SIZE / 2) {
		drop_mmu_context(mm, cpu);
		goto out_restore;
	}

	oldpid = read_c0_entryhi();
	newpid = cpu_asid(cpu, mm);

	write_c0_entrylo(0);

	start &= PAGE_MASK;
	end += (PAGE_SIZE - 1);
	end &= PAGE_MASK;
	while (start < end) {
		signed long idx;

		write_c0_vaddr(start);
		write_c0_entryhi(start);
		start += PAGE_SIZE;
		tlb_probe();
		idx = read_c0_tlbset();
		if (idx < 0)
			continue;

		write_c0_entryhi(CKSEG0 + (idx << (PAGE_SHIFT + 1)));
		tlb_write();
	}
	write_c0_entryhi(oldpid);

out_restore:
	local_irq_restore(flags);
}

开发者ID:12019，项目名称:hg556a_source，代码行数:48，代码来源:tlb-r8k.c

示例14: logerror

void omti8621_device::log_data()
{
	if (verbose > 0) {
		int i;
		logerror("%s: OMTI data (length=%02x)", cpu_context(this),
				data_length);
		for (i = 0; i < data_length && i < OMTI_DISK_SECTOR_SIZE; i++) {
			logerror(" %02x", data_buffer[i]);
		}

		if (i < data_length) {
			logerror(" ...");
		}
		logerror("\n");
	}
}

开发者ID:robsonfr，项目名称:mame，代码行数:16，代码来源:omti8621.cpp

示例15: flush_tlb_mm

/*
 * The following tlb flush calls are invoked when old translations are
 * being torn down, or pte attributes are changing. For single threaded
 * address spaces, a new context is obtained on the current cpu, and tlb
 * context on other cpus are invalidated to force a new context allocation
 * at switch_mm time, should the mm ever be used on other cpus. For
 * multithreaded address spaces, intercpu interrupts have to be sent.
 * Another case where intercpu interrupts are required is when the target
 * mm might be active on another cpu (eg debuggers doing the flushes on
 * behalf of debugees, kswapd stealing pages from another process etc).
 * Kanoj 07/00.
 */
void flush_tlb_mm(struct mm_struct *mm)
{
	preempt_disable();

	if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
		smp_call_function(flush_tlb_mm_ipi, (void *)mm, 1);
	} else {
		int i;
		for_each_online_cpu(i)
			if (smp_processor_id() != i)
				cpu_context(i, mm) = 0;
	}
	local_flush_tlb_mm(mm);

	preempt_enable();
}

开发者ID:0-T-0，项目名称:ps4-linux，代码行数:28，代码来源:smp.c

示例16: local_flush_tlb_mm

/* All entries common to a mm share an asid.  To effectively flush
   these entries, we just bump the asid. */
void local_flush_tlb_mm(struct mm_struct *mm)
{
	int cpu;
	unsigned long config6_flags;

	preempt_disable();

	cpu = smp_processor_id();

	disable_pgwalker(config6_flags);
	if (cpu_context(cpu, mm) != 0) {
		drop_mmu_context(mm, cpu);
	}
	enable_pgwalker(config6_flags);
	preempt_enable();
}

开发者ID:akennedy-adtran，项目名称:linux_mmc_2.6.32.9，代码行数:18，代码来源:tlb-r4k.c

示例17: local_flush_tlb_range

void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
                           unsigned long end)
{
    struct mm_struct *mm = vma->vm_mm;
    int cpu = smp_processor_id();

    if (cpu_context(cpu, mm) != 0) {
        unsigned long size, flags;
        int huge = is_vm_hugetlb_page(vma);

        ENTER_CRITICAL(flags);
        if (huge) {
            start = round_down(start, HPAGE_SIZE);
            end = round_up(end, HPAGE_SIZE);
            size = (end - start) >> HPAGE_SHIFT;
        } else {

开发者ID:daeiron，项目名称:LG_G3_Kernel，代码行数:16，代码来源:tlb-r4k.c

示例18: flush_tlb_page

void flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
{
	if ((atomic_read(&vma->vm_mm->mm_users) != 1) || (current->mm != vma->vm_mm)) {
		struct flush_tlb_data fd;

		fd.vma = vma;
		fd.addr1 = page;
		smp_call_function(flush_tlb_page_ipi, (void *)&fd, 1, 1);
	} else {
		int i;
		for (i = 0; i < smp_num_cpus; i++)
			if (smp_processor_id() != i)
				cpu_context(i, vma->vm_mm) = 0;
	}
	local_flush_tlb_page(vma, page);
}

开发者ID:SimonKagstrom，项目名称:mci500h-linux-2.4.27，代码行数:16，代码来源:smp.c

示例19: flush_tlb_mm

void flush_tlb_mm(struct mm_struct *mm)
{
	preempt_disable();

	if ((atomic_read(&mm->mm_users) != 1) || (current->mm != mm)) {
		smp_on_other_tlbs(flush_tlb_mm_ipi, (void *)mm);
	} else {
		int i;
		for (i = 0; i < num_online_cpus(); i++)
			if (smp_processor_id() != i)
				cpu_context(i, mm) = 0;
	}
	local_flush_tlb_mm(mm);

	preempt_enable();
}

开发者ID:Einheri，项目名称:wl500g，代码行数:16，代码来源:smp.c

示例20: local_flush_tlb_range

void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
	unsigned long end)
{
	struct mm_struct *mm = vma->vm_mm;
	int cpu = smp_processor_id();

	if (cpu_context(cpu, mm) != 0) {
		unsigned long size, flags;

		local_irq_save(flags);
		start = round_down(start, PAGE_SIZE << 1);
		end = round_up(end, PAGE_SIZE << 1);
		size = (end - start) >> (PAGE_SHIFT + 1);
		if (size <= (current_cpu_data.tlbsizeftlbsets ?
			     current_cpu_data.tlbsize / 8 :
			     current_cpu_data.tlbsize / 2)) {
			int oldpid = read_c0_entryhi();
			int newpid = cpu_asid(cpu, mm);

			htw_stop();
			while (start < end) {
				int idx;

				write_c0_entryhi(start | newpid);
				start += (PAGE_SIZE << 1);
				mtc0_tlbw_hazard();
				tlb_probe();
				tlb_probe_hazard();
				idx = read_c0_index();
				write_c0_entrylo0(0);
				write_c0_entrylo1(0);
				if (idx < 0)
					continue;
				/* Make sure all entries differ. */
				write_c0_entryhi(UNIQUE_ENTRYHI(idx));
				mtc0_tlbw_hazard();
				tlb_write_indexed();
			}
			tlbw_use_hazard();
			write_c0_entryhi(oldpid);
			htw_start();
		} else {
			drop_mmu_context(mm, cpu);
		}
		flush_micro_tlb();
		local_irq_restore(flags);
	}

开发者ID:acton393，项目名称:linux，代码行数:47，代码来源:tlb-r4k.c

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