FM / asm

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

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

Name	Size	Mode	Actions
hardware/	-	0755	rm
mach/	-	0755	rm
vdso/	-	0755	rm
xen/	-	0755	rm
archrandom.h	192	0644	edit dl rm
arch_gicv3.h	6327	0644	edit dl rm
arch_timer.h	3124	0644	edit dl rm
arm-cci.h	535	0644	edit dl rm
asm-offsets.h	35	0644	edit dl rm
assembler.h	13106	0644	edit dl rm
atomic.h	12536	0644	edit dl rm
auxvec.h	29	0644	edit dl rm
barrier.h	2910	0644	edit dl rm
bitops.h	7627	0644	edit dl rm
bitrev.h	451	0644	edit dl rm
bL_switcher.h	2186	0644	edit dl rm
bug.h	2620	0644	edit dl rm
bugs.h	297	0644	edit dl rm
cache.h	794	0644	edit dl rm
cacheflush.h	15794	0644	edit dl rm
cachetype.h	2779	0644	edit dl rm
checksum.h	4026	0644	edit dl rm
clocksource.h	161	0644	edit dl rm
cmpxchg.h	6328	0644	edit dl rm
compiler.h	978	0644	edit dl rm
cp15.h	3302	0644	edit dl rm
cpu.h	387	0644	edit dl rm
cpufeature.h	1291	0644	edit dl rm
cpuidle.h	1628	0644	edit dl rm
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dcc.h	623	0644	edit dl rm
delay.h	2903	0644	edit dl rm
device.h	636	0644	edit dl rm
div64.h	2640	0644	edit dl rm
dma-direct.h	1341	0644	edit dl rm
dma-iommu.h	908	0644	edit dl rm
dma-mapping.h	4714	0644	edit dl rm
dma.h	4287	0644	edit dl rm
dmi.h	378	0644	edit dl rm
domain.h	3751	0644	edit dl rm
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elf.h	4636	0644	edit dl rm
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exception.h	416	0644	edit dl rm
fb.h	375	0644	edit dl rm
fiq.h	1391	0644	edit dl rm
firmware.h	1728	0644	edit dl rm
fixmap.h	1881	0644	edit dl rm
floppy.h	2318	0644	edit dl rm
fncpy.h	2552	0644	edit dl rm
fpstate.h	1478	0644	edit dl rm
ftrace.h	1821	0644	edit dl rm
futex.h	4357	0644	edit dl rm
glue-cache.h	3515	0644	edit dl rm
glue-df.h	2110	0644	edit dl rm
glue-pf.h	1005	0644	edit dl rm
glue-proc.h	4424	0644	edit dl rm
glue.h	613	0644	edit dl rm
gpio.h	615	0644	edit dl rm
hardirq.h	246	0644	edit dl rm
highmem.h	2379	0644	edit dl rm
hugetlb-3level.h	690	0644	edit dl rm
hugetlb.h	513	0644	edit dl rm
hwcap.h	378	0644	edit dl rm
hw_breakpoint.h	3811	0644	edit dl rm
hw_irq.h	349	0644	edit dl rm
hypervisor.h	224	0644	edit dl rm
ide.h	566	0644	edit dl rm
idmap.h	359	0644	edit dl rm
insn.h	636	0644	edit dl rm
io.h	15027	0644	edit dl rm
irq.h	887	0644	edit dl rm
irqflags.h	3969	0644	edit dl rm
irq_work.h	234	0644	edit dl rm
jump_label.h	1009	0644	edit dl rm
kasan.h	708	0644	edit dl rm
kasan_def.h	2726	0644	edit dl rm
Kbuild	186	0644	edit dl rm
kexec-internal.h	272	0644	edit dl rm
kexec.h	2255	0644	edit dl rm
kgdb.h	2783	0644	edit dl rm
kprobes.h	2248	0644	edit dl rm
krait-l2-accessors.h	231	0644	edit dl rm
linkage.h	216	0644	edit dl rm
mc146818rtc.h	720	0644	edit dl rm
mcpm.h	12061	0644	edit dl rm
mcs_spinlock.h	570	0644	edit dl rm
memblock.h	248	0644	edit dl rm
memory.h	10945	0644	edit dl rm
mmu.h	953	0644	edit dl rm
mmu_context.h	3461	0644	edit dl rm
module.h	1216	0644	edit dl rm
module.lds.h	134	0644	edit dl rm
mpu.h	3300	0644	edit dl rm
mtd-xip.h	520	0644	edit dl rm
neon.h	1041	0644	edit dl rm
nwflash.h	195	0644	edit dl rm
opcodes-sec.h	350	0644	edit dl rm
opcodes-virt.h	684	0644	edit dl rm
opcodes.h	8118	0644	edit dl rm
outercache.h	3268	0644	edit dl rm
page-nommu.h	811	0644	edit dl rm
page.h	3448	0644	edit dl rm
paravirt.h	477	0644	edit dl rm
patch.h	438	0644	edit dl rm
pci.h	794	0644	edit dl rm
percpu.h	1069	0644	edit dl rm
perf_event.h	708	0644	edit dl rm
pgalloc.h	3373	0644	edit dl rm
pgtable-2level-hwdef.h	3385	0644	edit dl rm
pgtable-2level-types.h	1278	0644	edit dl rm
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pgtable-3level-hwdef.h	3435	0644	edit dl rm
pgtable-3level-types.h	1331	0644	edit dl rm
pgtable-3level.h	8148	0644	edit dl rm
pgtable-hwdef.h	321	0644	edit dl rm
pgtable-nommu.h	1979	0644	edit dl rm
pgtable.h	10492	0644	edit dl rm
probes.h	1332	0644	edit dl rm
proc-fns.h	4754	0644	edit dl rm
processor.h	3166	0644	edit dl rm
procinfo.h	1152	0644	edit dl rm
prom.h	552	0644	edit dl rm
psci.h	379	0644	edit dl rm
ptdump.h	923	0644	edit dl rm
ptrace.h	4841	0644	edit dl rm
seccomp.h	281	0644	edit dl rm
sections.h	622	0644	edit dl rm
secure_cntvoff.h	152	0644	edit dl rm
setup.h	773	0644	edit dl rm
set_memory.h	720	0644	edit dl rm
shmparam.h	419	0644	edit dl rm
signal.h	559	0644	edit dl rm
smp.h	2839	0644	edit dl rm
smp_plat.h	2535	0644	edit dl rm
smp_scu.h	1352	0644	edit dl rm
smp_twd.h	590	0644	edit dl rm
sparsemem.h	716	0644	edit dl rm
spectre.h	906	0644	edit dl rm
spinlock.h	5645	0644	edit dl rm
spinlock_types.h	541	0644	edit dl rm
stackprotector.h	1357	0644	edit dl rm
stacktrace.h	742	0644	edit dl rm
string.h	2277	0644	edit dl rm
suspend.h	369	0644	edit dl rm
swab.h	1005	0644	edit dl rm
switch_to.h	1058	0644	edit dl rm
sync_bitops.h	1514	0644	edit dl rm
syscall.h	2347	0644	edit dl rm
system_info.h	763	0644	edit dl rm
system_misc.h	1005	0644	edit dl rm
tcm.h	925	0644	edit dl rm
therm.h	655	0644	edit dl rm
thread_info.h	4974	0644	edit dl rm
thread_notify.h	1086	0644	edit dl rm
timex.h	431	0644	edit dl rm
tlb.h	1442	0644	edit dl rm
tlbflush.h	17909	0644	edit dl rm
tls.h	3166	0644	edit dl rm
topology.h	1139	0644	edit dl rm
traps.h	911	0644	edit dl rm
uaccess-asm.h	2703	0644	edit dl rm
uaccess.h	17431	0644	edit dl rm
ucontext.h	2745	0644	edit dl rm
unified.h	979	0644	edit dl rm
unistd.h	1578	0644	edit dl rm
unwind.h	1173	0644	edit dl rm
uprobes.h	948	0644	edit dl rm
user.h	4302	0644	edit dl rm
v7m.h	3233	0644	edit dl rm
vdso.h	507	0644	edit dl rm
vdso_datapage.h	444	0644	edit dl rm
vermagic.h	800	0644	edit dl rm
vfp.h	2969	0644	edit dl rm
vfpmacros.h	2074	0644	edit dl rm
vga.h	305	0644	edit dl rm
virt.h	1855	0644	edit dl rm
vmalloc.h	87	0644	edit dl rm
vmlinux.lds.h	4490	0644	edit dl rm
word-at-a-time.h	2128	0644	edit dl rm
xor.h	5204	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/arch/arm/include/asm/memory.h (10945B)

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 *  arch/arm/include/asm/memory.h
 *
 *  Copyright (C) 2000-2002 Russell King
 *  modification for nommu, Hyok S. Choi, 2004
 *
 *  Note: this file should not be included by non-asm/.h files
 */
#ifndef __ASM_ARM_MEMORY_H
#define __ASM_ARM_MEMORY_H

#include <linux/compiler.h>
#include <linux/const.h>
#include <linux/types.h>
#include <linux/sizes.h>

#ifdef CONFIG_NEED_MACH_MEMORY_H
#include <mach/memory.h>
#endif
#include <asm/kasan_def.h>

/*
 * PAGE_OFFSET: the virtual address of the start of lowmem, memory above
 *   the virtual address range for userspace.
 * KERNEL_OFFSET: the virtual address of the start of the kernel image.
 *   we may further offset this with TEXT_OFFSET in practice.
 */
#define PAGE_OFFSET		UL(CONFIG_PAGE_OFFSET)
#define KERNEL_OFFSET		(PAGE_OFFSET)

#ifdef CONFIG_MMU

/*
 * TASK_SIZE - the maximum size of a user space task.
 * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area
 */
#ifndef CONFIG_KASAN
#define TASK_SIZE		(UL(CONFIG_PAGE_OFFSET) - UL(SZ_16M))
#else
#define TASK_SIZE		(KASAN_SHADOW_START)
#endif
#define TASK_UNMAPPED_BASE	ALIGN(TASK_SIZE / 3, SZ_16M)

/*
 * The maximum size of a 26-bit user space task.
 */
#define TASK_SIZE_26		(UL(1) << 26)

/*
 * The module space lives between the addresses given by TASK_SIZE
 * and PAGE_OFFSET - it must be within 32MB of the kernel text.
 */
#ifndef CONFIG_THUMB2_KERNEL
#define MODULES_VADDR		(PAGE_OFFSET - SZ_16M)
#else
/* smaller range for Thumb-2 symbols relocation (2^24)*/
#define MODULES_VADDR		(PAGE_OFFSET - SZ_8M)
#endif

#if TASK_SIZE > MODULES_VADDR
#error Top of user space clashes with start of module space
#endif

/*
 * The highmem pkmap virtual space shares the end of the module area.
 */
#ifdef CONFIG_HIGHMEM
#define MODULES_END		(PAGE_OFFSET - PMD_SIZE)
#else
#define MODULES_END		(PAGE_OFFSET)
#endif

/*
 * The XIP kernel gets mapped at the bottom of the module vm area.
 * Since we use sections to map it, this macro replaces the physical address
 * with its virtual address while keeping offset from the base section.
 */
#define XIP_VIRT_ADDR(physaddr)  (MODULES_VADDR + ((physaddr) & 0x000fffff))

#define FDT_FIXED_BASE		UL(0xff800000)
#define FDT_FIXED_SIZE		(2 * SECTION_SIZE)
#define FDT_VIRT_BASE(physbase)	((void *)(FDT_FIXED_BASE | (physbase) % SECTION_SIZE))

#if !defined(CONFIG_SMP) && !defined(CONFIG_ARM_LPAE)
/*
 * Allow 16MB-aligned ioremap pages
 */
#define IOREMAP_MAX_ORDER	24
#endif

#define VECTORS_BASE		UL(0xffff0000)

#else /* CONFIG_MMU */

#ifndef __ASSEMBLY__
extern unsigned long setup_vectors_base(void);
extern unsigned long vectors_base;
#define VECTORS_BASE		vectors_base
#endif

/*
 * The limitation of user task size can grow up to the end of free ram region.
 * It is difficult to define and perhaps will never meet the original meaning
 * of this define that was meant to.
 * Fortunately, there is no reference for this in noMMU mode, for now.
 */
#define TASK_SIZE		UL(0xffffffff)

#ifndef TASK_UNMAPPED_BASE
#define TASK_UNMAPPED_BASE	UL(0x00000000)
#endif

#ifndef END_MEM
#define END_MEM     		(UL(CONFIG_DRAM_BASE) + CONFIG_DRAM_SIZE)
#endif

/*
 * The module can be at any place in ram in nommu mode.
 */
#define MODULES_END		(END_MEM)
#define MODULES_VADDR		PAGE_OFFSET

#define XIP_VIRT_ADDR(physaddr)  (physaddr)
#define FDT_VIRT_BASE(physbase)  ((void *)(physbase))

#endif /* !CONFIG_MMU */

#ifdef CONFIG_XIP_KERNEL
#define KERNEL_START		_sdata
#else
#define KERNEL_START		_stext
#endif
#define KERNEL_END		_end

/*
 * We fix the TCM memories max 32 KiB ITCM resp DTCM at these
 * locations
 */
#ifdef CONFIG_HAVE_TCM
#define ITCM_OFFSET	UL(0xfffe0000)
#define DTCM_OFFSET	UL(0xfffe8000)
#endif

/*
 * Convert a page to/from a physical address
 */
#define page_to_phys(page)	(__pfn_to_phys(page_to_pfn(page)))
#define phys_to_page(phys)	(pfn_to_page(__phys_to_pfn(phys)))

/*
 * PLAT_PHYS_OFFSET is the offset (from zero) of the start of physical
 * memory.  This is used for XIP and NoMMU kernels, and on platforms that don't
 * have CONFIG_ARM_PATCH_PHYS_VIRT. Assembly code must always use
 * PLAT_PHYS_OFFSET and not PHYS_OFFSET.
 */
#define PLAT_PHYS_OFFSET	UL(CONFIG_PHYS_OFFSET)

#ifndef __ASSEMBLY__

/*
 * Physical start and end address of the kernel sections. These addresses are
 * 2MB-aligned to match the section mappings placed over the kernel. We use
 * u64 so that LPAE mappings beyond the 32bit limit will work out as well.
 */
extern u64 kernel_sec_start;
extern u64 kernel_sec_end;

/*
 * Physical vs virtual RAM address space conversion.  These are
 * private definitions which should NOT be used outside memory.h
 * files.  Use virt_to_phys/phys_to_virt/__pa/__va instead.
 *
 * PFNs are used to describe any physical page; this means
 * PFN 0 == physical address 0.
 */

#if defined(CONFIG_ARM_PATCH_PHYS_VIRT)

/*
 * Constants used to force the right instruction encodings and shifts
 * so that all we need to do is modify the 8-bit constant field.
 */
#define __PV_BITS_31_24	0x81000000
#define __PV_BITS_23_16	0x810000
#define __PV_BITS_7_0	0x81

extern unsigned long __pv_phys_pfn_offset;
extern u64 __pv_offset;
extern void fixup_pv_table(const void *, unsigned long);
extern const void *__pv_table_begin, *__pv_table_end;

#define PHYS_OFFSET	((phys_addr_t)__pv_phys_pfn_offset << PAGE_SHIFT)
#define PHYS_PFN_OFFSET	(__pv_phys_pfn_offset)

#ifndef CONFIG_THUMB2_KERNEL
#define __pv_stub(from,to,instr)			\
	__asm__("@ __pv_stub\n"				\
	"1:	" instr "	%0, %1, %2\n"		\
	"2:	" instr "	%0, %0, %3\n"		\
	"	.pushsection .pv_table,\"a\"\n"		\
	"	.long	1b - ., 2b - .\n"		\
	"	.popsection\n"				\
	: "=r" (to)					\
	: "r" (from), "I" (__PV_BITS_31_24),		\
	  "I"(__PV_BITS_23_16))

#define __pv_add_carry_stub(x, y)			\
	__asm__("@ __pv_add_carry_stub\n"		\
	"0:	movw	%R0, #0\n"			\
	"	adds	%Q0, %1, %R0, lsl #20\n"	\
	"1:	mov	%R0, %2\n"			\
	"	adc	%R0, %R0, #0\n"			\
	"	.pushsection .pv_table,\"a\"\n"		\
	"	.long	0b - ., 1b - .\n"		\
	"	.popsection\n"				\
	: "=&r" (y)					\
	: "r" (x), "I" (__PV_BITS_7_0)			\
	: "cc")

#else
#define __pv_stub(from,to,instr)			\
	__asm__("@ __pv_stub\n"				\
	"0:	movw	%0, #0\n"			\
	"	lsl	%0, #21\n"			\
	"	" instr " %0, %1, %0\n"			\
	"	.pushsection .pv_table,\"a\"\n"		\
	"	.long	0b - .\n"			\
	"	.popsection\n"				\
	: "=&r" (to)					\
	: "r" (from))

#define __pv_add_carry_stub(x, y)			\
	__asm__("@ __pv_add_carry_stub\n"		\
	"0:	movw	%R0, #0\n"			\
	"	lsls	%R0, #21\n"			\
	"	adds	%Q0, %1, %R0\n"			\
	"1:	mvn	%R0, #0\n"			\
	"	adc	%R0, %R0, #0\n"			\
	"	.pushsection .pv_table,\"a\"\n"		\
	"	.long	0b - ., 1b - .\n"		\
	"	.popsection\n"				\
	: "=&r" (y)					\
	: "r" (x)					\
	: "cc")
#endif

static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
{
	phys_addr_t t;

if (sizeof(phys_addr_t) == 4) {
		__pv_stub(x, t, "add");
	} else {
		__pv_add_carry_stub(x, t);
	}
	return t;
}

static inline unsigned long __phys_to_virt(phys_addr_t x)
{
	unsigned long t;

/*
	 * 'unsigned long' cast discard upper word when
	 * phys_addr_t is 64 bit, and makes sure that inline
	 * assembler expression receives 32 bit argument
	 * in place where 'r' 32 bit operand is expected.
	 */
	__pv_stub((unsigned long) x, t, "sub");
	return t;
}

#else

#define PHYS_OFFSET	PLAT_PHYS_OFFSET
#define PHYS_PFN_OFFSET	((unsigned long)(PHYS_OFFSET >> PAGE_SHIFT))

static inline phys_addr_t __virt_to_phys_nodebug(unsigned long x)
{
	return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET;
}

static inline unsigned long __phys_to_virt(phys_addr_t x)
{
	return x - PHYS_OFFSET + PAGE_OFFSET;
}

#endif

#define virt_to_pfn(kaddr) \
	((((unsigned long)(kaddr) - PAGE_OFFSET) >> PAGE_SHIFT) + \
	 PHYS_PFN_OFFSET)

#define __pa_symbol_nodebug(x)	__virt_to_phys_nodebug((x))

#ifdef CONFIG_DEBUG_VIRTUAL
extern phys_addr_t __virt_to_phys(unsigned long x);
extern phys_addr_t __phys_addr_symbol(unsigned long x);
#else
#define __virt_to_phys(x)	__virt_to_phys_nodebug(x)
#define __phys_addr_symbol(x)	__pa_symbol_nodebug(x)
#endif

/*
 * These are *only* valid on the kernel direct mapped RAM memory.
 * Note: Drivers should NOT use these.  They are the wrong
 * translation for translating DMA addresses.  Use the driver
 * DMA support - see dma-mapping.h.
 */
#define virt_to_phys virt_to_phys
static inline phys_addr_t virt_to_phys(const volatile void *x)
{
	return __virt_to_phys((unsigned long)(x));
}

#define phys_to_virt phys_to_virt
static inline void *phys_to_virt(phys_addr_t x)
{
	return (void *)__phys_to_virt(x);
}

/*
 * Drivers should NOT use these either.
 */
#define __pa(x)			__virt_to_phys((unsigned long)(x))
#define __pa_symbol(x)		__phys_addr_symbol(RELOC_HIDE((unsigned long)(x), 0))
#define __va(x)			((void *)__phys_to_virt((phys_addr_t)(x)))
#define pfn_to_kaddr(pfn)	__va((phys_addr_t)(pfn) << PAGE_SHIFT)

extern long long arch_phys_to_idmap_offset;

/*
 * These are for systems that have a hardware interconnect supported alias
 * of physical memory for idmap purposes.  Most cases should leave these
 * untouched.  Note: this can only return addresses less than 4GiB.
 */
static inline bool arm_has_idmap_alias(void)
{
	return IS_ENABLED(CONFIG_MMU) && arch_phys_to_idmap_offset != 0;
}

#define IDMAP_INVALID_ADDR ((u32)~0)

static inline unsigned long phys_to_idmap(phys_addr_t addr)
{
	if (IS_ENABLED(CONFIG_MMU) && arch_phys_to_idmap_offset) {
		addr += arch_phys_to_idmap_offset;
		if (addr > (u32)~0)
			addr = IDMAP_INVALID_ADDR;
	}
	return addr;
}

static inline phys_addr_t idmap_to_phys(unsigned long idmap)
{
	phys_addr_t addr = idmap;

if (IS_ENABLED(CONFIG_MMU) && arch_phys_to_idmap_offset)
		addr -= arch_phys_to_idmap_offset;

return addr;
}

static inline unsigned long __virt_to_idmap(unsigned long x)
{
	return phys_to_idmap(__virt_to_phys(x));
}

#define virt_to_idmap(x)	__virt_to_idmap((unsigned long)(x))

/*
 * Virtual <-> DMA view memory address translations
 * Again, these are *only* valid on the kernel direct mapped RAM
 * memory.  Use of these is *deprecated* (and that doesn't mean
 * use the __ prefixed forms instead.)  See dma-mapping.h.
 */
#ifndef __virt_to_bus
#define __virt_to_bus	__virt_to_phys
#define __bus_to_virt	__phys_to_virt
#define __pfn_to_bus(x)	__pfn_to_phys(x)
#define __bus_to_pfn(x)	__phys_to_pfn(x)
#endif

/*
 * Conversion between a struct page and a physical address.
 *
 *  page_to_pfn(page)	convert a struct page * to a PFN number
 *  pfn_to_page(pfn)	convert a _valid_ PFN number to struct page *
 *
 *  virt_to_page(k)	convert a _valid_ virtual address to struct page *
 *  virt_addr_valid(k)	indicates whether a virtual address is valid
 */
#define ARCH_PFN_OFFSET		PHYS_PFN_OFFSET

#define virt_to_page(kaddr)	pfn_to_page(virt_to_pfn(kaddr))
#define virt_addr_valid(kaddr)	(((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory) \
					&& pfn_valid(virt_to_pfn(kaddr)))

#endif

#include <asm-generic/memory_model.h>

#endif

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