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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  * Copyright 2003 PathScale, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Derived from include/asm-i386/pgtable.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #ifndef __UM_PGTABLE_2LEVEL_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #define __UM_PGTABLE_2LEVEL_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <asm-generic/pgtable-nopmd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) /* PGDIR_SHIFT determines what a third-level page table entry can map */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define PGDIR_SHIFT	22
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define PGDIR_MASK	(~(PGDIR_SIZE-1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)  * entries per page directory level: the i386 is two-level, so
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  * we don't really have any PMD directory physically.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define PTRS_PER_PTE	1024
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define USER_PTRS_PER_PGD ((TASK_SIZE + (PGDIR_SIZE - 1)) / PGDIR_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define PTRS_PER_PGD	1024
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define FIRST_USER_ADDRESS	0UL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define pte_ERROR(e) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)         printk("%s:%d: bad pte %p(%08lx).\n", __FILE__, __LINE__, &(e), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	       pte_val(e))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define pgd_ERROR(e) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)         printk("%s:%d: bad pgd %p(%08lx).\n", __FILE__, __LINE__, &(e), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	       pgd_val(e))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) static inline int pgd_newpage(pgd_t pgd)	{ return 0; }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static inline void pgd_mkuptodate(pgd_t pgd)	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define pte_pfn(x) phys_to_pfn(pte_val(x))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define pfn_pte(pfn, prot) __pte(pfn_to_phys(pfn) | pgprot_val(prot))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define pfn_pmd(pfn, prot) __pmd(pfn_to_phys(pfn) | pgprot_val(prot))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #endif