FM / asm

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

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

Name	Size	Mode	Actions
adi.h	138	0644	edit dl rm
adi_64.h	812	0644	edit dl rm
agp.h	434	0644	edit dl rm
apb.h	1082	0644	edit dl rm
asm-offsets.h	35	0644	edit dl rm
asm-prototypes.h	729	0644	edit dl rm
asm.h	1101	0644	edit dl rm
asmmacro.h	1183	0644	edit dl rm
atomic.h	219	0644	edit dl rm
atomic_32.h	1760	0644	edit dl rm
atomic_64.h	1849	0644	edit dl rm
auxio.h	310	0644	edit dl rm
auxio_32.h	2615	0644	edit dl rm
auxio_64.h	3253	0644	edit dl rm
backoff.h	2756	0644	edit dl rm
barrier.h	223	0644	edit dl rm
barrier_32.h	160	0644	edit dl rm
barrier_64.h	2004	0644	edit dl rm
bbc.h	9996	0644	edit dl rm
bitext.h	631	0644	edit dl rm
bitops.h	219	0644	edit dl rm
bitops_32.h	2853	0644	edit dl rm
bitops_64.h	1675	0644	edit dl rm
btext.h	145	0644	edit dl rm
bug.h	588	0644	edit dl rm
cache.h	630	0644	edit dl rm
cacheflush.h	373	0644	edit dl rm
cacheflush_32.h	1951	0644	edit dl rm
cacheflush_64.h	2557	0644	edit dl rm
cachetlb_32.h	882	0644	edit dl rm
chafsr.h	9710	0644	edit dl rm
checksum.h	331	0644	edit dl rm
checksum_32.h	5791	0644	edit dl rm
checksum_64.h	3855	0644	edit dl rm
chmctrl.h	8096	0644	edit dl rm
clock.h	231	0644	edit dl rm
clocksource.h	407	0644	edit dl rm
cmpxchg.h	223	0644	edit dl rm
cmpxchg_32.h	2483	0644	edit dl rm
cmpxchg_64.h	5288	0644	edit dl rm
compat.h	3890	0644	edit dl rm
compat_signal.h	565	0644	edit dl rm
contregs.h	1941	0644	edit dl rm
cpudata.h	378	0644	edit dl rm
cpudata_32.h	729	0644	edit dl rm
cpudata_64.h	1153	0644	edit dl rm
cpu_type.h	579	0644	edit dl rm
current.h	991	0644	edit dl rm
dcr.h	728	0644	edit dl rm
dcu.h	1520	0644	edit dl rm
delay.h	215	0644	edit dl rm
delay_32.h	907	0644	edit dl rm
delay_64.h	403	0644	edit dl rm
device.h	565	0644	edit dl rm
dma-mapping.h	336	0644	edit dl rm
dma.h	4989	0644	edit dl rm
ebus_dma.h	1098	0644	edit dl rm
ecc.h	4448	0644	edit dl rm
eeprom.h	254	0644	edit dl rm
elf.h	207	0644	edit dl rm
elf_32.h	3267	0644	edit dl rm
elf_64.h	6848	0644	edit dl rm
estate.h	2287	0644	edit dl rm
extable.h	723	0644	edit dl rm
fb.h	680	0644	edit dl rm
fbio.h	2315	0644	edit dl rm
fhc.h	4533	0644	edit dl rm
floppy.h	219	0644	edit dl rm
floppy_32.h	9796	0644	edit dl rm
floppy_64.h	19392	0644	edit dl rm
fpumacro.h	710	0644	edit dl rm
ftrace.h	801	0644	edit dl rm
futex.h	215	0644	edit dl rm
futex_32.h	82	0644	edit dl rm
futex_64.h	2160	0644	edit dl rm
hardirq.h	223	0644	edit dl rm
hardirq_32.h	334	0644	edit dl rm
hardirq_64.h	412	0644	edit dl rm
head.h	211	0644	edit dl rm
head_32.h	2617	0644	edit dl rm
head_64.h	2184	0644	edit dl rm
hibernate.h	421	0644	edit dl rm
highmem.h	1966	0644	edit dl rm
hugetlb.h	1592	0644	edit dl rm
hvtramp.h	782	0644	edit dl rm
hw_irq.h	88	0644	edit dl rm
hypervisor.h	117649	0644	edit dl rm
ide.h	2222	0644	edit dl rm
idprom.h	656	0644	edit dl rm
intr_queue.h	794	0644	edit dl rm
io-unit.h	2469	0644	edit dl rm
io.h	620	0644	edit dl rm
ioctls.h	358	0644	edit dl rm
iommu-common.h	1445	0644	edit dl rm
iommu.h	215	0644	edit dl rm
iommu_32.h	5865	0644	edit dl rm
iommu_64.h	2489	0644	edit dl rm
io_32.h	3430	0644	edit dl rm
io_64.h	11076	0644	edit dl rm
irq.h	207	0644	edit dl rm
irqflags.h	227	0644	edit dl rm
irqflags_32.h	1058	0644	edit dl rm
irqflags_64.h	1952	0644	edit dl rm
irq_32.h	526	0644	edit dl rm
irq_64.h	3105	0644	edit dl rm
jump_label.h	1036	0644	edit dl rm
Kbuild	177	0644	edit dl rm
kdebug.h	219	0644	edit dl rm
kdebug_32.h	2041	0644	edit dl rm
kdebug_64.h	393	0644	edit dl rm
kgdb.h	1014	0644	edit dl rm
kprobes.h	1410	0644	edit dl rm
ldc.h	4475	0644	edit dl rm
leon.h	7844	0644	edit dl rm
leon_amba.h	8280	0644	edit dl rm
leon_pci.h	512	0644	edit dl rm
lsu.h	1062	0644	edit dl rm
machines.h	1540	0644	edit dl rm
mbus.h	2996	0644	edit dl rm
mc146818rtc.h	298	0644	edit dl rm
mc146818rtc_32.h	699	0644	edit dl rm
mc146818rtc_64.h	689	0644	edit dl rm
mdesc.h	3066	0644	edit dl rm
memctrl.h	311	0644	edit dl rm
mman.h	2633	0644	edit dl rm
mmu.h	207	0644	edit dl rm
mmu_32.h	209	0644	edit dl rm
mmu_64.h	3967	0644	edit dl rm
mmu_context.h	239	0644	edit dl rm
mmu_context_32.h	1082	0644	edit dl rm
mmu_context_64.h	5481	0644	edit dl rm
mmzone.h	363	0644	edit dl rm
mxcc.h	4429	0644	edit dl rm
nmi.h	354	0644	edit dl rm
ns87303.h	3299	0644	edit dl rm
obio.h	6410	0644	edit dl rm
openprom.h	7475	0644	edit dl rm
oplib.h	215	0644	edit dl rm
oplib_32.h	6062	0644	edit dl rm
oplib_64.h	8357	0644	edit dl rm
page.h	274	0644	edit dl rm
page_32.h	3826	0644	edit dl rm
page_64.h	4753	0644	edit dl rm
parport.h	5819	0644	edit dl rm
pbm.h	1505	0644	edit dl rm
pci.h	1367	0644	edit dl rm
pcic.h	5904	0644	edit dl rm
pcr.h	1893	0644	edit dl rm
percpu.h	219	0644	edit dl rm
percpu_32.h	168	0644	edit dl rm
percpu_64.h	541	0644	edit dl rm
perf_event.h	802	0644	edit dl rm
pgalloc.h	223	0644	edit dl rm
pgalloc_32.h	1823	0644	edit dl rm
pgalloc_64.h	2764	0644	edit dl rm
pgtable.h	223	0644	edit dl rm
pgtable_32.h	11021	0644	edit dl rm
pgtable_64.h	32369	0644	edit dl rm
pgtsrmmu.h	4879	0644	edit dl rm
pil.h	1109	0644	edit dl rm
processor.h	231	0644	edit dl rm
processor_32.h	2836	0644	edit dl rm
processor_64.h	7577	0644	edit dl rm
prom.h	1776	0644	edit dl rm
psr.h	1414	0644	edit dl rm
ptrace.h	4294	0644	edit dl rm
qrwlock.h	205	0644	edit dl rm
qspinlock.h	215	0644	edit dl rm
ross.h	5655	0644	edit dl rm
sbi.h	3425	0644	edit dl rm
scratchpad.h	547	0644	edit dl rm
seccomp.h	225	0644	edit dl rm
sections.h	289	0644	edit dl rm
setup.h	1552	0644	edit dl rm
sfafsr.h	3216	0644	edit dl rm
sfp-machine.h	239	0644	edit dl rm
sfp-machine_32.h	6954	0644	edit dl rm
sfp-machine_64.h	3178	0644	edit dl rm
shmparam.h	227	0644	edit dl rm
shmparam_32.h	253	0644	edit dl rm
shmparam_64.h	306	0644	edit dl rm
sigcontext.h	2616	0644	edit dl rm
signal.h	351	0644	edit dl rm
smp.h	207	0644	edit dl rm
smp_32.h	3368	0644	edit dl rm
smp_64.h	1791	0644	edit dl rm
sparsemem.h	295	0644	edit dl rm
spinlock.h	227	0644	edit dl rm
spinlock_32.h	4324	0644	edit dl rm
spinlock_64.h	409	0644	edit dl rm
spinlock_types.h	549	0644	edit dl rm
spitfire.h	9967	0644	edit dl rm
stacktrace.h	166	0644	edit dl rm
starfire.h	418	0644	edit dl rm
string.h	1254	0644	edit dl rm
string_32.h	405	0644	edit dl rm
string_64.h	409	0644	edit dl rm
sunbpp.h	3346	0644	edit dl rm
swift.h	3147	0644	edit dl rm
switch_to.h	231	0644	edit dl rm
switch_to_32.h	3616	0644	edit dl rm
switch_to_64.h	2640	0644	edit dl rm
syscall.h	3464	0644	edit dl rm
syscalls.h	299	0644	edit dl rm
termbits.h	198	0644	edit dl rm
termios.h	5063	0644	edit dl rm
thread_info.h	239	0644	edit dl rm
thread_info_32.h	3773	0644	edit dl rm
thread_info_64.h	8195	0644	edit dl rm
timer.h	215	0644	edit dl rm
timer_32.h	1211	0644	edit dl rm
timer_64.h	2448	0644	edit dl rm
timex.h	215	0644	edit dl rm
timex_32.h	266	0644	edit dl rm
timex_64.h	423	0644	edit dl rm
tlb.h	207	0644	edit dl rm
tlbflush.h	227	0644	edit dl rm
tlbflush_32.h	621	0644	edit dl rm
tlbflush_64.h	1776	0644	edit dl rm
tlb_32.h	138	0644	edit dl rm
tlb_64.h	1056	0644	edit dl rm
topology.h	227	0644	edit dl rm
topology_32.h	170	0644	edit dl rm
topology_64.h	1546	0644	edit dl rm
traps.h	577	0644	edit dl rm
trap_block.h	6786	0644	edit dl rm
tsb.h	12457	0644	edit dl rm
tsunami.h	1890	0644	edit dl rm
ttable.h	20827	0644	edit dl rm
turbosparc.h	3866	0644	edit dl rm
uaccess.h	390	0644	edit dl rm
uaccess_32.h	7032	0644	edit dl rm
uaccess_64.h	6142	0644	edit dl rm
unistd.h	1797	0644	edit dl rm
upa.h	3808	0644	edit dl rm
uprobes.h	1304	0644	edit dl rm
user.h	102	0644	edit dl rm
vaddrs.h	2066	0644	edit dl rm
vdso.h	491	0644	edit dl rm
vga.h	964	0644	edit dl rm
viking.h	8341	0644	edit dl rm
vio.h	12097	0644	edit dl rm
visasm.h	1544	0644	edit dl rm
vmalloc.h	93	0644	edit dl rm
vvar.h	1577	0644	edit dl rm
winmacro.h	4767	0644	edit dl rm
xor.h	207	0644	edit dl rm
xor_32.h	7086	0644	edit dl rm
xor_64.h	2156	0644	edit dl rm

Edit: /usr/src/linux-headers-5.15.0-190/arch/sparc/include/asm/viking.h (8341B)

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * viking.h:  Defines specific to the GNU/Viking MBUS module.
 *            This is SRMMU stuff.
 *
 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
 */
#ifndef _SPARC_VIKING_H
#define _SPARC_VIKING_H

#include <asm/asi.h>
#include <asm/mxcc.h>
#include <asm/pgtable.h>
#include <asm/pgtsrmmu.h>

/* Bits in the SRMMU control register for GNU/Viking modules.
 *
 * -----------------------------------------------------------
 * |impl-vers| RSV |TC|AC|SP|BM|PC|MBM|SB|IC|DC|PSO|RSV|NF|ME|
 * -----------------------------------------------------------
 *  31     24 23-17 16 15 14 13 12 11  10  9  8  7  6-2  1  0
 *
 * TC: Tablewalk Cacheable -- 0 = Twalks are not cacheable in E-cache
 *                            1 = Twalks are cacheable in E-cache
 *
 * GNU/Viking will only cache tablewalks in the E-cache (mxcc) if present
 * and never caches them internally (or so states the docs).  Therefore
 * for machines lacking an E-cache (ie. in MBUS mode) this bit must
 * remain cleared.
 *
 * AC: Alternate Cacheable -- 0 = Passthru physical accesses not cacheable
 *                            1 = Passthru physical accesses cacheable
 *
 * This indicates whether accesses are cacheable when no cachable bit
 * is present in the pte when the processor is in boot-mode or the
 * access does not need pte's for translation (ie. pass-thru ASI's).
 * "Cachable" is only referring to E-cache (if present) and not the
 * on chip split I/D caches of the GNU/Viking.
 *
 * SP: SnooP Enable -- 0 = bus snooping off, 1 = bus snooping on
 *
 * This enables snooping on the GNU/Viking bus.  This must be on
 * for the hardware cache consistency mechanisms of the GNU/Viking
 * to work at all.  On non-mxcc GNU/Viking modules the split I/D
 * caches will snoop regardless of whether they are enabled, this
 * takes care of the case where the I or D or both caches are turned
 * off yet still contain valid data.  Note also that this bit does
 * not affect GNU/Viking store-buffer snoops, those happen if the
 * store-buffer is enabled no matter what.
 *
 * BM: Boot Mode -- 0 = not in boot mode, 1 = in boot mode
 *
 * This indicates whether the GNU/Viking is in boot-mode or not,
 * if it is then all instruction fetch physical addresses are
 * computed as 0xff0000000 + low 28 bits of requested address.
 * GNU/Viking boot-mode does not affect data accesses.  Also,
 * in boot mode instruction accesses bypass the split on chip I/D
 * caches, they may be cached by the GNU/MXCC if present and enabled.
 *
 * MBM: MBus Mode -- 0 = not in MBus mode, 1 = in MBus mode
 *
 * This indicated the GNU/Viking configuration present.  If in
 * MBUS mode, the GNU/Viking lacks a GNU/MXCC E-cache.  If it is
 * not then the GNU/Viking is on a module VBUS connected directly
 * to a GNU/MXCC cache controller.  The GNU/MXCC can be thus connected
 * to either an GNU/MBUS (sun4m) or the packet-switched GNU/XBus (sun4d).
 *
 * SB: StoreBuffer enable -- 0 = store buffer off, 1 = store buffer on
 *
 * The GNU/Viking store buffer allows the chip to continue execution
 * after a store even if the data cannot be placed in one of the
 * caches during that cycle.  If disabled, all stores operations
 * occur synchronously.
 *
 * IC: Instruction Cache -- 0 = off, 1 = on
 * DC: Data Cache -- 0 = off, 1 = 0n
 *
 * These bits enable the on-cpu GNU/Viking split I/D caches.  Note,
 * as mentioned above, these caches will snoop the bus in GNU/MBUS
 * configurations even when disabled to avoid data corruption.
 *
 * NF: No Fault -- 0 = faults generate traps, 1 = faults don't trap
 * ME: MMU enable -- 0 = mmu not translating, 1 = mmu translating
 *
 */

#define VIKING_MMUENABLE    0x00000001
#define VIKING_NOFAULT      0x00000002
#define VIKING_PSO          0x00000080
#define VIKING_DCENABLE     0x00000100   /* Enable data cache */
#define VIKING_ICENABLE     0x00000200   /* Enable instruction cache */
#define VIKING_SBENABLE     0x00000400   /* Enable store buffer */
#define VIKING_MMODE        0x00000800   /* MBUS mode */
#define VIKING_PCENABLE     0x00001000   /* Enable parity checking */
#define VIKING_BMODE        0x00002000   
#define VIKING_SPENABLE     0x00004000   /* Enable bus cache snooping */
#define VIKING_ACENABLE     0x00008000   /* Enable alternate caching */
#define VIKING_TCENABLE     0x00010000   /* Enable table-walks to be cached */
#define VIKING_DPENABLE     0x00040000   /* Enable the data prefetcher */

/*
 * GNU/Viking Breakpoint Action Register fields.
 */
#define VIKING_ACTION_MIX   0x00001000   /* Enable multiple instructions */

/*
 * GNU/Viking Cache Tags.
 */
#define VIKING_PTAG_VALID   0x01000000   /* Cache block is valid */
#define VIKING_PTAG_DIRTY   0x00010000   /* Block has been modified */
#define VIKING_PTAG_SHARED  0x00000100   /* Shared with some other cache */

#ifndef __ASSEMBLY__

static inline void viking_flush_icache(void)
{
	__asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"
			     : /* no outputs */
			     : "i" (ASI_M_IC_FLCLEAR)
			     : "memory");
}

static inline void viking_flush_dcache(void)
{
	__asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"
			     : /* no outputs */
			     : "i" (ASI_M_DC_FLCLEAR)
			     : "memory");
}

static inline void viking_unlock_icache(void)
{
	__asm__ __volatile__("sta %%g0, [%0] %1\n\t"
			     : /* no outputs */
			     : "r" (0x80000000), "i" (ASI_M_IC_FLCLEAR)
			     : "memory");
}

static inline void viking_unlock_dcache(void)
{
	__asm__ __volatile__("sta %%g0, [%0] %1\n\t"
			     : /* no outputs */
			     : "r" (0x80000000), "i" (ASI_M_DC_FLCLEAR)
			     : "memory");
}

static inline void viking_set_bpreg(unsigned long regval)
{
	__asm__ __volatile__("sta %0, [%%g0] %1\n\t"
			     : /* no outputs */
			     : "r" (regval), "i" (ASI_M_ACTION)
			     : "memory");
}

static inline unsigned long viking_get_bpreg(void)
{
	unsigned long regval;

__asm__ __volatile__("lda [%%g0] %1, %0\n\t"
			     : "=r" (regval)
			     : "i" (ASI_M_ACTION));
	return regval;
}

static inline void viking_get_dcache_ptag(int set, int block,
					      unsigned long *data)
{
	unsigned long ptag = ((set & 0x7f) << 5) | ((block & 0x3) << 26) |
			     0x80000000;
	unsigned long info, page;

__asm__ __volatile__ ("ldda [%2] %3, %%g2\n\t"
			      "or %%g0, %%g2, %0\n\t"
			      "or %%g0, %%g3, %1\n\t"
			      : "=r" (info), "=r" (page)
			      : "r" (ptag), "i" (ASI_M_DATAC_TAG)
			      : "g2", "g3");
	data[0] = info;
	data[1] = page;
}

static inline void viking_mxcc_turn_off_parity(unsigned long *mregp,
						   unsigned long *mxcc_cregp)
{
	unsigned long mreg = *mregp;
	unsigned long mxcc_creg = *mxcc_cregp;

mreg &= ~(VIKING_PCENABLE);
	mxcc_creg &= ~(MXCC_CTL_PARE);

__asm__ __volatile__ ("set 1f, %%g2\n\t"
			      "andcc %%g2, 4, %%g0\n\t"
			      "bne 2f\n\t"
			      " nop\n"
			      "1:\n\t"
			      "sta %0, [%%g0] %3\n\t"
			      "sta %1, [%2] %4\n\t"
			      "b 1f\n\t"
			      " nop\n\t"
			      "nop\n"
			      "2:\n\t"
			      "sta %0, [%%g0] %3\n\t"
			      "sta %1, [%2] %4\n"
			      "1:\n\t"
			      : /* no output */
			      : "r" (mreg), "r" (mxcc_creg),
			        "r" (MXCC_CREG), "i" (ASI_M_MMUREGS),
			        "i" (ASI_M_MXCC)
			      : "g2", "memory", "cc");
	*mregp = mreg;
	*mxcc_cregp = mxcc_creg;
}

static inline unsigned long viking_hwprobe(unsigned long vaddr)
{
	unsigned long val;

vaddr &= PAGE_MASK;
	/* Probe all MMU entries. */
	__asm__ __volatile__("lda [%1] %2, %0\n\t"
			     : "=r" (val)
			     : "r" (vaddr | 0x400), "i" (ASI_M_FLUSH_PROBE));
	if (!val)
		return 0;

/* Probe region. */
	__asm__ __volatile__("lda [%1] %2, %0\n\t"
			     : "=r" (val)
			     : "r" (vaddr | 0x200), "i" (ASI_M_FLUSH_PROBE));
	if ((val & SRMMU_ET_MASK) == SRMMU_ET_PTE) {
		vaddr &= ~PGDIR_MASK;
		vaddr >>= PAGE_SHIFT;
		return val | (vaddr << 8);
	}

/* Probe segment. */
	__asm__ __volatile__("lda [%1] %2, %0\n\t"
			     : "=r" (val)
			     : "r" (vaddr | 0x100), "i" (ASI_M_FLUSH_PROBE));
	if ((val & SRMMU_ET_MASK) == SRMMU_ET_PTE) {
		vaddr &= ~PMD_MASK;
		vaddr >>= PAGE_SHIFT;
		return val | (vaddr << 8);
	}

/* Probe page. */
	__asm__ __volatile__("lda [%1] %2, %0\n\t"
			     : "=r" (val)
			     : "r" (vaddr), "i" (ASI_M_FLUSH_PROBE));
	return val;
}

#endif /* !__ASSEMBLY__ */

#endif /* !(_SPARC_VIKING_H) */

cmd: