C++ (Cpp) hugetlb_add_hstate Examples

Example #1

File: hugetlbpage.c Project: leloulight/ubuntu-linux-trusty-tuxonice

static __init int setup_hugepagesz(char *opt)
{
    unsigned long ps = memparse(opt, &opt);
    if (ps == PMD_SIZE) {
        hugetlb_add_hstate(PMD_SHIFT - PAGE_SHIFT);
    } else if (ps == PUD_SIZE) {
        hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
    } else {
        pr_err("hugepagesz: Unsupported page size %lu M\n", ps >> 20);
        return 0;
    }
    return 1;
}

Example #2

File: hugetlbpage.c Project: ApisSys/linux-analogdevicesinc-ap6

static __init int setup_hugepagesz(char *opt)
{
	unsigned long ps = memparse(opt, &opt);
	if (ps == PMD_SIZE) {
		hugetlb_add_hstate(PMD_SHIFT - PAGE_SHIFT);
	} else if (ps == PUD_SIZE && boot_cpu_has(X86_FEATURE_GBPAGES)) {
		hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
	} else {
		printk(KERN_ERR "hugepagesz: Unsupported page size %lu M\n",
			ps >> 20);
		return 0;
	}
	return 1;
}

Example #3

File: hugetlbpage.c Project: AlexShiLucky/linux

static void __init add_huge_page_size(unsigned long size)
{
	if (size_to_hstate(size))
		return;

	hugetlb_add_hstate(ilog2(size) - PAGE_SHIFT);
}

Example #4

File: hugetlbpage.c Project: 0-T-0/ps4-linux

static __init int gigantic_pages_init(void)
{
	/* With CMA we can allocate gigantic pages at runtime */
	if (cpu_has_gbpages && !size_to_hstate(1UL << PUD_SHIFT))
		hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
	return 0;
}

Example #5

File: hugetlbpage.c Project: ApisSys/linux-analogdevicesinc-ap6

static __init int gigantic_pages_init(void)
{
	/* With compaction or CMA we can allocate gigantic pages at runtime */
	if (boot_cpu_has(X86_FEATURE_GBPAGES) && !size_to_hstate(1UL << PUD_SHIFT))
		hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
	return 0;
}

Example #6

File: hugetlbpage.c Project: 01org/thunderbolt-software-kernel-tree

/* necessary for boot time 4MB huge page allocation */
static __init int setup_hugepagesz(char *opt)
{
	unsigned long ps = memparse(opt, &opt);
	if (ps == (1 << HPAGE_SHIFT)) {
		hugetlb_add_hstate(HPAGE_SHIFT - PAGE_SHIFT);
	} else {
		hugetlb_bad_size();
		pr_err("hugepagesz: Unsupported page size %lu M\n",
		       ps >> 20);
		return 0;
	}
	return 1;
}

Example #7

File: hugetlbpage.c Project: CCNITSilchar/linux

static __init int setup_hugepagesz(char *opt)
{
	unsigned long ps = memparse(opt, &opt);

	switch (ps) {
#ifdef CONFIG_ARM64_4K_PAGES
	case PUD_SIZE:
#endif
	case PMD_SIZE * CONT_PMDS:
	case PMD_SIZE:
	case PAGE_SIZE * CONT_PTES:
		hugetlb_add_hstate(ilog2(ps) - PAGE_SHIFT);
		return 1;
	}

	hugetlb_bad_size();
	pr_err("hugepagesz: Unsupported page size %lu K\n", ps >> 10);
	return 0;
}

Example #8

File: hugetlbpage.c Project: CCNITSilchar/linux

static __init int add_default_hugepagesz(void)
{
	if (size_to_hstate(CONT_PTES * PAGE_SIZE) == NULL)
		hugetlb_add_hstate(CONT_PTE_SHIFT);
	return 0;
}