FM / asm

/usr/src/linux-headers-5.15.0-190/arch/m68k/include/asm/

/usr/src/linux-headers-5.15.0-190/arch/m68k/include/asm

Name	Size	Mode	Actions
adb_iop.h	1188	0644	edit dl rm
amigahw.h	10737	0644	edit dl rm
amigaints.h	3583	0644	edit dl rm
amigayle.h	3271	0644	edit dl rm
amipcmcia.h	2568	0644	edit dl rm
apollohw.h	2410	0644	edit dl rm
asm-offsets.h	35	0644	edit dl rm
asm-prototypes.h	211	0644	edit dl rm
atarihw.h	20919	0644	edit dl rm
atariints.h	5691	0644	edit dl rm
atarikb.h	1434	0644	edit dl rm
atari_joystick.h	457	0644	edit dl rm
atari_stdma.h	514	0644	edit dl rm
atari_stram.h	528	0644	edit dl rm
atomic.h	5016	0644	edit dl rm
bitops.h	12827	0644	edit dl rm
blinken.h	641	0644	edit dl rm
bootinfo.h	783	0644	edit dl rm
bootstd.h	4747	0644	edit dl rm
bug.h	659	0644	edit dl rm
bvme6000hw.h	3529	0644	edit dl rm
cache.h	296	0644	edit dl rm
cacheflush.h	133	0644	edit dl rm
cacheflush_mm.h	7173	0644	edit dl rm
cacheflush_no.h	1884	0644	edit dl rm
checksum.h	3497	0644	edit dl rm
cmpxchg.h	3189	0644	edit dl rm
coldfire.h	1653	0644	edit dl rm
contregs.h	3390	0644	edit dl rm
current.h	580	0644	edit dl rm
delay.h	3504	0644	edit dl rm
div64.h	858	0644	edit dl rm
dma.h	17040	0644	edit dl rm
dsp56k.h	1269	0644	edit dl rm
dvma.h	9903	0644	edit dl rm
elf.h	3145	0644	edit dl rm
entry.h	5902	0644	edit dl rm
export.h	53	0644	edit dl rm
fb.h	921	0644	edit dl rm
fbio.h	10106	0644	edit dl rm
flat.h	333	0644	edit dl rm
floppy.h	5330	0644	edit dl rm
fpu.h	535	0644	edit dl rm
ftrace.h	12	0644	edit dl rm
gpio.h	2294	0644	edit dl rm
hash.h	2115	0644	edit dl rm
hp300hw.h	186	0644	edit dl rm
hwtest.h	467	0644	edit dl rm
ide.h	1708	0644	edit dl rm
idprom.h	725	0644	edit dl rm
intersil.h	1134	0644	edit dl rm
io.h	244	0644	edit dl rm
io_mm.h	13198	0644	edit dl rm
io_no.h	4196	0644	edit dl rm
irq.h	2634	0644	edit dl rm
irqflags.h	1652	0644	edit dl rm
Kbuild	165	0644	edit dl rm
kexec.h	732	0644	edit dl rm
kmap.h	1754	0644	edit dl rm
linkage.h	1583	0644	edit dl rm
m52xxacr.h	3660	0644	edit dl rm
m53xxacr.h	3683	0644	edit dl rm
m53xxsim.h	55262	0644	edit dl rm
m54xxacr.h	4934	0644	edit dl rm
m54xxgpt.h	3750	0644	edit dl rm
m54xxpci.h	6276	0644	edit dl rm
m54xxsim.h	3892	0644	edit dl rm
m520xsim.h	7323	0644	edit dl rm
m523xsim.h	7882	0644	edit dl rm
m525xsim.h	10822	0644	edit dl rm
m527xsim.h	13835	0644	edit dl rm
m528xsim.h	9599	0644	edit dl rm
m5206sim.h	6555	0644	edit dl rm
m5272sim.h	6199	0644	edit dl rm
m5307sim.h	7698	0644	edit dl rm
m5407sim.h	6289	0644	edit dl rm
m5441xsim.h	10294	0644	edit dl rm
machdep.h	1331	0644	edit dl rm
machines.h	3209	0644	edit dl rm
machw.h	588	0644	edit dl rm
macintosh.h	2438	0644	edit dl rm
macints.h	3210	0644	edit dl rm
mac_asc.h	520	0644	edit dl rm
mac_baboon.h	999	0644	edit dl rm
mac_iop.h	5499	0644	edit dl rm
mac_oss.h	1873	0644	edit dl rm
mac_psc.h	7427	0644	edit dl rm
mac_via.h	11718	0644	edit dl rm
math-emu.h	6897	0644	edit dl rm
MC68EZ328.h	38650	0644	edit dl rm
MC68VZ328.h	42006	0644	edit dl rm
MC68328.h	38724	0644	edit dl rm
mc146818rtc.h	598	0644	edit dl rm
mcf8390.h	3844	0644	edit dl rm
mcfclk.h	961	0644	edit dl rm
mcfdma.h	6662	0644	edit dl rm
mcfgpio.h	8269	0644	edit dl rm
mcfintc.h	3161	0644	edit dl rm
mcfmmu.h	3761	0644	edit dl rm
mcfpit.h	2278	0644	edit dl rm
mcfqspi.h	1466	0644	edit dl rm
mcfsim.h	1531	0644	edit dl rm
mcfslt.h	1240	0644	edit dl rm
mcftimer.h	2357	0644	edit dl rm
mcfuart.h	7076	0644	edit dl rm
mcfwdebug.h	5106	0644	edit dl rm
mcf_pgalloc.h	2000	0644	edit dl rm
mcf_pgtable.h	8312	0644	edit dl rm
mmu.h	243	0644	edit dl rm
mmu_context.h	7207	0644	edit dl rm
module.h	847	0644	edit dl rm
module.lds.h	91	0644	edit dl rm
motorola_pgalloc.h	2146	0644	edit dl rm
motorola_pgtable.h	7610	0644	edit dl rm
movs.h	1472	0644	edit dl rm
mvme16xhw.h	2216	0644	edit dl rm
mvme147hw.h	2938	0644	edit dl rm
natfeat.h	533	0644	edit dl rm
nettel.h	3023	0644	edit dl rm
nubus.h	1262	0644	edit dl rm
openprom.h	8173	0644	edit dl rm
oplib.h	9768	0644	edit dl rm
page.h	1728	0644	edit dl rm
page_mm.h	3399	0644	edit dl rm
page_no.h	1322	0644	edit dl rm
page_offset.h	256	0644	edit dl rm
parport.h	837	0644	edit dl rm
pci.h	258	0644	edit dl rm
pgalloc.h	444	0644	edit dl rm
pgtable.h	127	0644	edit dl rm
pgtable_mm.h	4931	0644	edit dl rm
pgtable_no.h	1438	0644	edit dl rm
processor.h	4158	0644	edit dl rm
ptrace.h	643	0644	edit dl rm
q40ints.h	749	0644	edit dl rm
q40_master.h	2357	0644	edit dl rm
quicc_simple.h	1830	0644	edit dl rm
raw_io.h	12003	0644	edit dl rm
serial.h	1165	0644	edit dl rm
setup.h	9467	0644	edit dl rm
signal.h	1377	0644	edit dl rm
smp.h	32	0644	edit dl rm
string.h	1717	0644	edit dl rm
sun3-head.h	353	0644	edit dl rm
sun3ints.h	989	0644	edit dl rm
sun3mmu.h	5025	0644	edit dl rm
sun3x.h	868	0644	edit dl rm
sun3xflop.h	5757	0644	edit dl rm
sun3xprom.h	1343	0644	edit dl rm
sun3_pgalloc.h	1267	0644	edit dl rm
sun3_pgtable.h	6583	0644	edit dl rm
switch_to.h	1549	0644	edit dl rm
syscall.h	251	0644	edit dl rm
thread_info.h	2237	0644	edit dl rm
timex.h	974	0644	edit dl rm
tlb.h	135	0644	edit dl rm
tlbflush.h	5989	0644	edit dl rm
traps.h	8615	0644	edit dl rm
uaccess.h	12563	0644	edit dl rm
ucontext.h	570	0644	edit dl rm
unistd.h	993	0644	edit dl rm
user.h	3874	0644	edit dl rm
vga.h	902	0644	edit dl rm
virtconvert.h	834	0644	edit dl rm
vmalloc.h	90	0644	edit dl rm
zorro.h	1222	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/arch/m68k/include/asm/motorola_pgtable.h (7610B)

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _MOTOROLA_PGTABLE_H
#define _MOTOROLA_PGTABLE_H

/*
 * Definitions for MMU descriptors
 */
#define _PAGE_PRESENT	0x001
#define _PAGE_SHORT	0x002
#define _PAGE_RONLY	0x004
#define _PAGE_READWRITE	0x000
#define _PAGE_ACCESSED	0x008
#define _PAGE_DIRTY	0x010
#define _PAGE_SUPER	0x080	/* 68040 supervisor only */
#define _PAGE_GLOBAL040	0x400	/* 68040 global bit, used for kva descs */
#define _PAGE_NOCACHE030 0x040	/* 68030 no-cache mode */
#define _PAGE_NOCACHE	0x060	/* 68040 cache mode, non-serialized */
#define _PAGE_NOCACHE_S	0x040	/* 68040 no-cache mode, serialized */
#define _PAGE_CACHE040	0x020	/* 68040 cache mode, cachable, copyback */
#define _PAGE_CACHE040W	0x000	/* 68040 cache mode, cachable, write-through */

#define _DESCTYPE_MASK	0x003

#define _CACHEMASK040	(~0x060)

/*
 * Currently set to the minimum alignment of table pointers (256 bytes).
 * The hardware only uses the low 4 bits for state:
 *
 *    3 - Used
 *    2 - Write Protected
 *  0,1 - Descriptor Type
 *
 * and has the rest of the bits reserved.
 */
#define _TABLE_MASK	(0xffffff00)

#define _PAGE_TABLE	(_PAGE_SHORT)
#define _PAGE_CHG_MASK  (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_NOCACHE)

#define _PAGE_PROTNONE	0x004

#ifndef __ASSEMBLY__

/* This is the cache mode to be used for pages containing page descriptors for
 * processors >= '040. It is in pte_mknocache(), and the variable is defined
 * and initialized in head.S */
extern int m68k_pgtable_cachemode;

/* This is the cache mode for normal pages, for supervisor access on
 * processors >= '040. It is used in pte_mkcache(), and the variable is
 * defined and initialized in head.S */

#if defined(CPU_M68060_ONLY) && defined(CONFIG_060_WRITETHROUGH)
#define m68k_supervisor_cachemode _PAGE_CACHE040W
#elif defined(CPU_M68040_OR_M68060_ONLY)
#define m68k_supervisor_cachemode _PAGE_CACHE040
#elif defined(CPU_M68020_OR_M68030_ONLY)
#define m68k_supervisor_cachemode 0
#else
extern int m68k_supervisor_cachemode;
#endif

#if defined(CPU_M68040_OR_M68060_ONLY)
#define mm_cachebits _PAGE_CACHE040
#elif defined(CPU_M68020_OR_M68030_ONLY)
#define mm_cachebits 0
#else
extern unsigned long mm_cachebits;
#endif

/* Alternate definitions that are compile time constants, for
   initializing protection_map.  The cachebits are fixed later.  */
#define PAGE_NONE_C	__pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
#define PAGE_SHARED_C	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED)
#define PAGE_COPY_C	__pgprot(_PAGE_PRESENT | _PAGE_RONLY | _PAGE_ACCESSED)
#define PAGE_READONLY_C	__pgprot(_PAGE_PRESENT | _PAGE_RONLY | _PAGE_ACCESSED)

/*
 * The m68k can't do page protection for execute, and considers that the same are read.
 * Also, write permissions imply read permissions. This is the closest we can get..
 */
#define __P000	PAGE_NONE_C
#define __P001	PAGE_READONLY_C
#define __P010	PAGE_COPY_C
#define __P011	PAGE_COPY_C
#define __P100	PAGE_READONLY_C
#define __P101	PAGE_READONLY_C
#define __P110	PAGE_COPY_C
#define __P111	PAGE_COPY_C

#define __S000	PAGE_NONE_C
#define __S001	PAGE_READONLY_C
#define __S010	PAGE_SHARED_C
#define __S011	PAGE_SHARED_C
#define __S100	PAGE_READONLY_C
#define __S101	PAGE_READONLY_C
#define __S110	PAGE_SHARED_C
#define __S111	PAGE_SHARED_C

#define pmd_pgtable(pmd) ((pgtable_t)pmd_page_vaddr(pmd))

/*
 * Conversion functions: convert a page and protection to a page entry,
 * and a page entry and page directory to the page they refer to.
 */
#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))

static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{
	pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot);
	return pte;
}

static inline void pmd_set(pmd_t *pmdp, pte_t *ptep)
{
	pmd_val(*pmdp) = virt_to_phys(ptep) | _PAGE_TABLE | _PAGE_ACCESSED;
}

static inline void pud_set(pud_t *pudp, pmd_t *pmdp)
{
	pud_val(*pudp) = _PAGE_TABLE | _PAGE_ACCESSED | __pa(pmdp);
}

#define __pte_page(pte) ((unsigned long)__va(pte_val(pte) & PAGE_MASK))
#define pmd_page_vaddr(pmd) ((unsigned long)__va(pmd_val(pmd) & _TABLE_MASK))
#define pud_pgtable(pud) ((pmd_t *)__va(pud_val(pud) & _TABLE_MASK))

#define pte_none(pte)		(!pte_val(pte))
#define pte_present(pte)	(pte_val(pte) & (_PAGE_PRESENT | _PAGE_PROTNONE))
#define pte_clear(mm,addr,ptep)		({ pte_val(*(ptep)) = 0; })

#define pte_page(pte)		virt_to_page(__va(pte_val(pte)))
#define pte_pfn(pte)		(pte_val(pte) >> PAGE_SHIFT)
#define pfn_pte(pfn, prot)	__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))

#define pmd_none(pmd)		(!pmd_val(pmd))
#define pmd_bad(pmd)		((pmd_val(pmd) & _DESCTYPE_MASK) != _PAGE_TABLE)
#define pmd_present(pmd)	(pmd_val(pmd) & _PAGE_TABLE)
#define pmd_clear(pmdp)		({ pmd_val(*pmdp) = 0; })

/*
 * m68k does not have huge pages (020/030 actually could), but generic code
 * expects pmd_page() to exists, only to then DCE it all. Provide a dummy to
 * make the compiler happy.
 */
#define pmd_page(pmd)		NULL

#define pud_none(pud)		(!pud_val(pud))
#define pud_bad(pud)		((pud_val(pud) & _DESCTYPE_MASK) != _PAGE_TABLE)
#define pud_present(pud)	(pud_val(pud) & _PAGE_TABLE)
#define pud_clear(pudp)		({ pud_val(*pudp) = 0; })
#define pud_page(pud)		(mem_map + ((unsigned long)(__va(pud_val(pud)) - PAGE_OFFSET) >> PAGE_SHIFT))

#define pte_ERROR(e) \
	printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
#define pmd_ERROR(e) \
	printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e))
#define pgd_ERROR(e) \
	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))

/*
 * The following only work if pte_present() is true.
 * Undefined behaviour if not..
 */
static inline int pte_write(pte_t pte)		{ return !(pte_val(pte) & _PAGE_RONLY); }
static inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
static inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }

static inline pte_t pte_wrprotect(pte_t pte)	{ pte_val(pte) |= _PAGE_RONLY; return pte; }
static inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~_PAGE_DIRTY; return pte; }
static inline pte_t pte_mkold(pte_t pte)	{ pte_val(pte) &= ~_PAGE_ACCESSED; return pte; }
static inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) &= ~_PAGE_RONLY; return pte; }
static inline pte_t pte_mkdirty(pte_t pte)	{ pte_val(pte) |= _PAGE_DIRTY; return pte; }
static inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= _PAGE_ACCESSED; return pte; }
static inline pte_t pte_mknocache(pte_t pte)
{
	pte_val(pte) = (pte_val(pte) & _CACHEMASK040) | m68k_pgtable_cachemode;
	return pte;
}
static inline pte_t pte_mkcache(pte_t pte)
{
	pte_val(pte) = (pte_val(pte) & _CACHEMASK040) | m68k_supervisor_cachemode;
	return pte;
}

#define swapper_pg_dir kernel_pg_dir
extern pgd_t kernel_pg_dir[128];

/* Encode and de-code a swap entry (must be !pte_none(e) && !pte_present(e)) */
#define __swp_type(x)		(((x).val >> 4) & 0xff)
#define __swp_offset(x)		((x).val >> 12)
#define __swp_entry(type, offset) ((swp_entry_t) { ((type) << 4) | ((offset) << 12) })
#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
#define __swp_entry_to_pte(x)	((pte_t) { (x).val })

#endif	/* !__ASSEMBLY__ */
#endif /* _MOTOROLA_PGTABLE_H */

cmd: