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) #ifndef _ASM_POWERPC_HUGETLB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define _ASM_POWERPC_HUGETLB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #ifdef CONFIG_HUGETLB_PAGE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <asm/page.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #ifdef CONFIG_PPC_BOOK3S_64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <asm/book3s/64/hugetlb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #elif defined(CONFIG_PPC_FSL_BOOK3E)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <asm/nohash/hugetlb-book3e.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #elif defined(CONFIG_PPC_8xx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/nohash/32/hugetlb-8xx.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #endif /* CONFIG_PPC_BOOK3S_64 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) extern bool hugetlb_disabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) void hugetlbpage_init_default(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) void flush_dcache_icache_hugepage(struct page *page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) int slice_is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 			   unsigned long len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static inline int is_hugepage_only_range(struct mm_struct *mm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 					 unsigned long addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 					 unsigned long len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	if (IS_ENABLED(CONFIG_PPC_MM_SLICES) && !radix_enabled())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		return slice_is_hugepage_only_range(mm, addr, len);
^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) #define is_hugepage_only_range is_hugepage_only_range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 			    unsigned long end, unsigned long floor,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 			    unsigned long ceiling);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define __HAVE_ARCH_HUGE_PTEP_GET_AND_CLEAR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 					    unsigned long addr, pte_t *ptep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	return __pte(pte_update(mm, addr, ptep, ~0UL, 0, 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define __HAVE_ARCH_HUGE_PTEP_CLEAR_FLUSH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 					 unsigned long addr, pte_t *ptep)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	huge_ptep_get_and_clear(vma->vm_mm, addr, ptep);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	flush_hugetlb_page(vma, addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define __HAVE_ARCH_HUGE_PTEP_SET_ACCESS_FLAGS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) int huge_ptep_set_access_flags(struct vm_area_struct *vma,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 			       unsigned long addr, pte_t *ptep,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 			       pte_t pte, int dirty);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) void gigantic_hugetlb_cma_reserve(void) __init;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #include <asm-generic/hugetlb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #else /* ! CONFIG_HUGETLB_PAGE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static inline void flush_hugetlb_page(struct vm_area_struct *vma,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 				      unsigned long vmaddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define hugepd_shift(x) 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) 				    unsigned pdshift)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 	return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static inline void __init gigantic_hugetlb_cma_reserve(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #endif /* CONFIG_HUGETLB_PAGE */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #endif /* _ASM_POWERPC_HUGETLB_H */