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 _M68K_PAGE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define _M68K_PAGE_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include <linux/const.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <asm/setup.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <asm/page_offset.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) /* PAGE_SHIFT determines the page size */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define PAGE_SHIFT	13
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define PAGE_SHIFT	12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #define PAGE_MASK	(~(PAGE_SIZE-1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define PAGE_OFFSET	(PAGE_OFFSET_RAW)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #ifndef __ASSEMBLY__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * These are used to make use of C type-checking..
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #if !defined(CONFIG_MMU) || CONFIG_PGTABLE_LEVELS == 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) typedef struct { unsigned long pmd; } pmd_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define pmd_val(x)	((&x)->pmd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define __pmd(x)	((pmd_t) { (x) } )
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) typedef struct { unsigned long pte; } pte_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) typedef struct { unsigned long pgd; } pgd_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) typedef struct { unsigned long pgprot; } pgprot_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #if defined(CONFIG_SUN3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)  * Sun3 still uses the asm-generic/pgalloc.h code and thus needs this
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)  * definition. It would be possible to unify Sun3 and ColdFire pgalloc and have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)  * all of m68k use the same type.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) typedef struct page *pgtable_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) typedef pte_t *pgtable_t;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define pte_val(x)	((x).pte)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define pgd_val(x)	((x).pgd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define pgprot_val(x)	((x).pgprot)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define __pte(x)	((pte_t) { (x) } )
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define __pgd(x)	((pgd_t) { (x) } )
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define __pgprot(x)	((pgprot_t) { (x) } )
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) extern unsigned long _rambase;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) extern unsigned long _ramstart;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) extern unsigned long _ramend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #endif /* !__ASSEMBLY__ */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #ifdef CONFIG_MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #include <asm/page_mm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #include <asm/page_no.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define __phys_to_pfn(paddr)	((unsigned long)((paddr) >> PAGE_SHIFT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define __pfn_to_phys(pfn)	PFN_PHYS(pfn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) #include <asm-generic/getorder.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #endif /* _M68K_PAGE_H */