/* 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/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 &= ~SRMMU_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 &= ~SRMMU_REAL_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) */
Name | Type | Size | Permission | Actions |
---|---|---|---|---|
Kbuild | File | 491 B | 0644 |
|
agp.h | File | 434 B | 0644 |
|
apb.h | File | 1.06 KB | 0644 |
|
asm-offsets.h | File | 35 B | 0644 |
|
asm-prototypes.h | File | 727 B | 0644 |
|
asm.h | File | 1.08 KB | 0644 |
|
asmmacro.h | File | 1.16 KB | 0644 |
|
atomic.h | File | 219 B | 0644 |
|
atomic_32.h | File | 2.26 KB | 0644 |
|
atomic_64.h | File | 3.34 KB | 0644 |
|
auxio.h | File | 310 B | 0644 |
|
auxio_32.h | File | 2.55 KB | 0644 |
|
auxio_64.h | File | 3.18 KB | 0644 |
|
backoff.h | File | 2.7 KB | 0644 |
|
barrier.h | File | 223 B | 0644 |
|
barrier_32.h | File | 160 B | 0644 |
|
barrier_64.h | File | 1.96 KB | 0644 |
|
bbc.h | File | 9.76 KB | 0644 |
|
bitext.h | File | 631 B | 0644 |
|
bitops.h | File | 219 B | 0644 |
|
bitops_32.h | File | 2.79 KB | 0644 |
|
bitops_64.h | File | 1.64 KB | 0644 |
|
btext.h | File | 145 B | 0644 |
|
bug.h | File | 588 B | 0644 |
|
bugs.h | File | 404 B | 0644 |
|
cache.h | File | 649 B | 0644 |
|
cacheflush.h | File | 373 B | 0644 |
|
cacheflush_32.h | File | 1.97 KB | 0644 |
|
cacheflush_64.h | File | 2.56 KB | 0644 |
|
cachetlb_32.h | File | 882 B | 0644 |
|
chafsr.h | File | 9.48 KB | 0644 |
|
checksum.h | File | 227 B | 0644 |
|
checksum_32.h | File | 6.81 KB | 0644 |
|
checksum_64.h | File | 4.4 KB | 0644 |
|
chmctrl.h | File | 7.91 KB | 0644 |
|
clock.h | File | 231 B | 0644 |
|
clocksource.h | File | 407 B | 0644 |
|
cmpxchg.h | File | 223 B | 0644 |
|
cmpxchg_32.h | File | 2.4 KB | 0644 |
|
cmpxchg_64.h | File | 5.13 KB | 0644 |
|
compat.h | File | 6.45 KB | 0644 |
|
compat_signal.h | File | 565 B | 0644 |
|
contregs.h | File | 1.9 KB | 0644 |
|
cpu_type.h | File | 579 B | 0644 |
|
cpudata.h | File | 378 B | 0644 |
|
cpudata_32.h | File | 729 B | 0644 |
|
cpudata_64.h | File | 1.13 KB | 0644 |
|
current.h | File | 991 B | 0644 |
|
dcr.h | File | 728 B | 0644 |
|
dcu.h | File | 1.48 KB | 0644 |
|
delay.h | File | 215 B | 0644 |
|
delay_32.h | File | 907 B | 0644 |
|
delay_64.h | File | 403 B | 0644 |
|
device.h | File | 565 B | 0644 |
|
dma-mapping.h | File | 632 B | 0644 |
|
dma.h | File | 6.6 KB | 0644 |
|
ebus_dma.h | File | 1.07 KB | 0644 |
|
ecc.h | File | 4.34 KB | 0644 |
|
eeprom.h | File | 254 B | 0644 |
|
elf.h | File | 207 B | 0644 |
|
elf_32.h | File | 3.19 KB | 0644 |
|
elf_64.h | File | 6.47 KB | 0644 |
|
estate.h | File | 2.23 KB | 0644 |
|
extable_64.h | File | 727 B | 0644 |
|
fb.h | File | 680 B | 0644 |
|
fbio.h | File | 2.26 KB | 0644 |
|
fhc.h | File | 4.43 KB | 0644 |
|
floppy.h | File | 219 B | 0644 |
|
floppy_32.h | File | 9.74 KB | 0644 |
|
floppy_64.h | File | 18.83 KB | 0644 |
|
fpumacro.h | File | 710 B | 0644 |
|
ftrace.h | File | 800 B | 0644 |
|
futex.h | File | 215 B | 0644 |
|
futex_32.h | File | 82 B | 0644 |
|
futex_64.h | File | 2.15 KB | 0644 |
|
hardirq.h | File | 223 B | 0644 |
|
hardirq_32.h | File | 334 B | 0644 |
|
hardirq_64.h | File | 417 B | 0644 |
|
head.h | File | 211 B | 0644 |
|
head_32.h | File | 2.56 KB | 0644 |
|
head_64.h | File | 2.13 KB | 0644 |
|
hibernate.h | File | 421 B | 0644 |
|
highmem.h | File | 2.02 KB | 0644 |
|
hugetlb.h | File | 2.09 KB | 0644 |
|
hvtramp.h | File | 782 B | 0644 |
|
hw_irq.h | File | 88 B | 0644 |
|
hypervisor.h | File | 110.71 KB | 0644 |
|
ide.h | File | 2.19 KB | 0644 |
|
idprom.h | File | 656 B | 0644 |
|
intr_queue.h | File | 794 B | 0644 |
|
io-unit.h | File | 2.41 KB | 0644 |
|
io.h | File | 620 B | 0644 |
|
io_32.h | File | 3.51 KB | 0644 |
|
io_64.h | File | 10.66 KB | 0644 |
|
ioctls.h | File | 358 B | 0644 |
|
iommu.h | File | 215 B | 0644 |
|
iommu_32.h | File | 5.73 KB | 0644 |
|
iommu_64.h | File | 2.43 KB | 0644 |
|
irq.h | File | 207 B | 0644 |
|
irq_32.h | File | 526 B | 0644 |
|
irq_64.h | File | 3.06 KB | 0644 |
|
irqflags.h | File | 227 B | 0644 |
|
irqflags_32.h | File | 1.03 KB | 0644 |
|
irqflags_64.h | File | 1.91 KB | 0644 |
|
jump_label.h | File | 1.01 KB | 0644 |
|
kdebug.h | File | 219 B | 0644 |
|
kdebug_32.h | File | 1.99 KB | 0644 |
|
kdebug_64.h | File | 393 B | 0644 |
|
kgdb.h | File | 1014 B | 0644 |
|
kmap_types.h | File | 233 B | 0644 |
|
kprobes.h | File | 1.41 KB | 0644 |
|
ldc.h | File | 4.37 KB | 0644 |
|
leon.h | File | 7.37 KB | 0644 |
|
leon_amba.h | File | 8.09 KB | 0644 |
|
leon_pci.h | File | 512 B | 0644 |
|
lsu.h | File | 1.04 KB | 0644 |
|
machines.h | File | 1.5 KB | 0644 |
|
mbus.h | File | 2.93 KB | 0644 |
|
mc146818rtc.h | File | 298 B | 0644 |
|
mc146818rtc_32.h | File | 699 B | 0644 |
|
mc146818rtc_64.h | File | 689 B | 0644 |
|
mdesc.h | File | 2.99 KB | 0644 |
|
memctrl.h | File | 311 B | 0644 |
|
mman.h | File | 304 B | 0644 |
|
mmu.h | File | 207 B | 0644 |
|
mmu_32.h | File | 209 B | 0644 |
|
mmu_64.h | File | 3.14 KB | 0644 |
|
mmu_context.h | File | 239 B | 0644 |
|
mmu_context_32.h | File | 1.07 KB | 0644 |
|
mmu_context_64.h | File | 4.15 KB | 0644 |
|
mmzone.h | File | 393 B | 0644 |
|
msi.h | File | 774 B | 0644 |
|
mxcc.h | File | 4.33 KB | 0644 |
|
nmi.h | File | 354 B | 0644 |
|
ns87303.h | File | 3.22 KB | 0644 |
|
obio.h | File | 6.26 KB | 0644 |
|
openprom.h | File | 7.3 KB | 0644 |
|
oplib.h | File | 215 B | 0644 |
|
oplib_32.h | File | 5.92 KB | 0644 |
|
oplib_64.h | File | 8.12 KB | 0644 |
|
page.h | File | 274 B | 0644 |
|
page_32.h | File | 3.91 KB | 0644 |
|
page_64.h | File | 4.49 KB | 0644 |
|
parport.h | File | 5.68 KB | 0644 |
|
pbm.h | File | 1.47 KB | 0644 |
|
pci.h | File | 207 B | 0644 |
|
pci_32.h | File | 1.09 KB | 0644 |
|
pci_64.h | File | 1.49 KB | 0644 |
|
pcic.h | File | 5.77 KB | 0644 |
|
pcr.h | File | 1.85 KB | 0644 |
|
percpu.h | File | 219 B | 0644 |
|
percpu_32.h | File | 168 B | 0644 |
|
percpu_64.h | File | 515 B | 0644 |
|
perf_event.h | File | 802 B | 0644 |
|
pgalloc.h | File | 223 B | 0644 |
|
pgalloc_32.h | File | 1.91 KB | 0644 |
|
pgalloc_64.h | File | 2.85 KB | 0644 |
|
pgtable.h | File | 223 B | 0644 |
|
pgtable_32.h | File | 11.35 KB | 0644 |
|
pgtable_64.h | File | 30.71 KB | 0644 |
|
pgtsrmmu.h | File | 6.05 KB | 0644 |
|
pil.h | File | 1.08 KB | 0644 |
|
processor.h | File | 231 B | 0644 |
|
processor_32.h | File | 3.13 KB | 0644 |
|
processor_64.h | File | 7.58 KB | 0644 |
|
prom.h | File | 2.02 KB | 0644 |
|
psr.h | File | 1.38 KB | 0644 |
|
ptrace.h | File | 4.19 KB | 0644 |
|
qrwlock.h | File | 205 B | 0644 |
|
qspinlock.h | File | 215 B | 0644 |
|
ross.h | File | 5.52 KB | 0644 |
|
sbi.h | File | 3.34 KB | 0644 |
|
scratchpad.h | File | 547 B | 0644 |
|
seccomp.h | File | 225 B | 0644 |
|
sections.h | File | 289 B | 0644 |
|
setup.h | File | 1.52 KB | 0644 |
|
sfafsr.h | File | 3.14 KB | 0644 |
|
sfp-machine.h | File | 239 B | 0644 |
|
sfp-machine_32.h | File | 6.79 KB | 0644 |
|
sfp-machine_64.h | File | 3.1 KB | 0644 |
|
shmparam.h | File | 227 B | 0644 |
|
shmparam_32.h | File | 253 B | 0644 |
|
shmparam_64.h | File | 306 B | 0644 |
|
sigcontext.h | File | 2.55 KB | 0644 |
|
signal.h | File | 835 B | 0644 |
|
smp.h | File | 207 B | 0644 |
|
smp_32.h | File | 3.29 KB | 0644 |
|
smp_64.h | File | 1.84 KB | 0644 |
|
sparsemem.h | File | 349 B | 0644 |
|
spinlock.h | File | 227 B | 0644 |
|
spinlock_32.h | File | 4.22 KB | 0644 |
|
spinlock_64.h | File | 409 B | 0644 |
|
spinlock_types.h | File | 549 B | 0644 |
|
spitfire.h | File | 9.73 KB | 0644 |
|
stacktrace.h | File | 166 B | 0644 |
|
starfire.h | File | 418 B | 0644 |
|
string.h | File | 1.13 KB | 0644 |
|
string_32.h | File | 405 B | 0644 |
|
string_64.h | File | 505 B | 0644 |
|
sunbpp.h | File | 3.27 KB | 0644 |
|
swift.h | File | 3.07 KB | 0644 |
|
switch_to.h | File | 231 B | 0644 |
|
switch_to_32.h | File | 3.53 KB | 0644 |
|
switch_to_64.h | File | 2.58 KB | 0644 |
|
syscall.h | File | 3.41 KB | 0644 |
|
syscalls.h | File | 307 B | 0644 |
|
termbits.h | File | 198 B | 0644 |
|
termios.h | File | 4.94 KB | 0644 |
|
thread_info.h | File | 239 B | 0644 |
|
thread_info_32.h | File | 3.66 KB | 0644 |
|
thread_info_64.h | File | 7.84 KB | 0644 |
|
timer.h | File | 215 B | 0644 |
|
timer_32.h | File | 1.18 KB | 0644 |
|
timer_64.h | File | 2.37 KB | 0644 |
|
timex.h | File | 215 B | 0644 |
|
timex_32.h | File | 266 B | 0644 |
|
timex_64.h | File | 423 B | 0644 |
|
tlb.h | File | 207 B | 0644 |
|
tlb_32.h | File | 520 B | 0644 |
|
tlb_64.h | File | 913 B | 0644 |
|
tlbflush.h | File | 227 B | 0644 |
|
tlbflush_32.h | File | 621 B | 0644 |
|
tlbflush_64.h | File | 1.73 KB | 0644 |
|
topology.h | File | 227 B | 0644 |
|
topology_32.h | File | 170 B | 0644 |
|
topology_64.h | File | 1.51 KB | 0644 |
|
trap_block.h | File | 6.51 KB | 0644 |
|
traps.h | File | 577 B | 0644 |
|
tsb.h | File | 12.17 KB | 0644 |
|
tsunami.h | File | 1.85 KB | 0644 |
|
ttable.h | File | 20.08 KB | 0644 |
|
turbosparc.h | File | 3.78 KB | 0644 |
|
uaccess.h | File | 363 B | 0644 |
|
uaccess_32.h | File | 8.31 KB | 0644 |
|
uaccess_64.h | File | 6.05 KB | 0644 |
|
unaligned.h | File | 339 B | 0644 |
|
unistd.h | File | 1.37 KB | 0644 |
|
upa.h | File | 3.72 KB | 0644 |
|
uprobes.h | File | 1.86 KB | 0644 |
|
user.h | File | 102 B | 0644 |
|
vaddrs.h | File | 2.02 KB | 0644 |
|
vdso.h | File | 662 B | 0644 |
|
vga.h | File | 964 B | 0644 |
|
viking.h | File | 8.14 KB | 0644 |
|
vio.h | File | 11.81 KB | 0644 |
|
visasm.h | File | 1.51 KB | 0644 |
|
vvar.h | File | 1.52 KB | 0644 |
|
winmacro.h | File | 4.66 KB | 0644 |
|
xor.h | File | 207 B | 0644 |
|
xor_32.h | File | 7.31 KB | 0644 |
|
xor_64.h | File | 2.5 KB | 0644 |
|