Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <linux/hugetlb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) int pud_huge(pud_t pud)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 	return pud_leaf(pud);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) int pmd_huge(pmd_t pmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	return pmd_leaf(pmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) bool __init arch_hugetlb_valid_size(unsigned long size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	if (size == HPAGE_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 		return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	else if (IS_ENABLED(CONFIG_64BIT) && size == PUD_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 		return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #ifdef CONFIG_CONTIG_ALLOC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static __init int gigantic_pages_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	/* With CONTIG_ALLOC, we can allocate gigantic pages at runtime */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	if (IS_ENABLED(CONFIG_64BIT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		hugetlb_add_hstate(PUD_SHIFT - PAGE_SHIFT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) arch_initcall(gigantic_pages_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #endif