/* SPDX-License-Identifier: GPL-2.0 */ /* * include/asm/processor.h * * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) */ #ifndef __ASM_SPARC64_PROCESSOR_H #define __ASM_SPARC64_PROCESSOR_H /* * Sparc64 implementation of macro that returns current * instruction pointer ("program counter"). */ #define current_text_addr() ({ void *pc; __asm__("rd %%pc, %0" : "=r" (pc)); pc; }) #include <asm/asi.h> #include <asm/pstate.h> #include <asm/ptrace.h> #include <asm/page.h> /* * User lives in his very own context, and cannot reference us. Note * that TASK_SIZE is a misnomer, it really gives maximum user virtual * address that the kernel will allocate out. * * XXX No longer using virtual page tables, kill this upper limit... */ #define VA_BITS 44 #ifndef __ASSEMBLY__ #define VPTE_SIZE (1UL << (VA_BITS - PAGE_SHIFT + 3)) #else #define VPTE_SIZE (1 << (VA_BITS - PAGE_SHIFT + 3)) #endif #define TASK_SIZE_OF(tsk) \ (test_tsk_thread_flag(tsk,TIF_32BIT) ? \ (1UL << 32UL) : ((unsigned long)-VPTE_SIZE)) #define TASK_SIZE \ (test_thread_flag(TIF_32BIT) ? \ (1UL << 32UL) : ((unsigned long)-VPTE_SIZE)) #ifdef __KERNEL__ #define STACK_TOP32 ((1UL << 32UL) - PAGE_SIZE) #define STACK_TOP64 (0x0000080000000000UL - (1UL << 32UL)) #define STACK_TOP (test_thread_flag(TIF_32BIT) ? \ STACK_TOP32 : STACK_TOP64) #define STACK_TOP_MAX STACK_TOP64 #endif #ifndef __ASSEMBLY__ typedef struct { unsigned char seg; } mm_segment_t; /* The Sparc processor specific thread struct. */ /* XXX This should die, everything can go into thread_info now. */ struct thread_struct { #ifdef CONFIG_DEBUG_SPINLOCK /* How many spinlocks held by this thread. * Used with spin lock debugging to catch tasks * sleeping illegally with locks held. */ int smp_lock_count; unsigned int smp_lock_pc; #else int dummy; /* f'in gcc bug... */ #endif }; #endif /* !(__ASSEMBLY__) */ #ifndef CONFIG_DEBUG_SPINLOCK #define INIT_THREAD { \ 0, \ } #else /* CONFIG_DEBUG_SPINLOCK */ #define INIT_THREAD { \ /* smp_lock_count, smp_lock_pc, */ \ 0, 0, \ } #endif /* !(CONFIG_DEBUG_SPINLOCK) */ #ifndef __ASSEMBLY__ #include <linux/types.h> #include <asm/fpumacro.h> struct task_struct; /* On Uniprocessor, even in RMO processes see TSO semantics */ #ifdef CONFIG_SMP #define TSTATE_INITIAL_MM TSTATE_TSO #else #define TSTATE_INITIAL_MM TSTATE_RMO #endif /* Do necessary setup to start up a newly executed thread. */ #define start_thread(regs, pc, sp) \ do { \ unsigned long __asi = ASI_PNF; \ regs->tstate = (regs->tstate & (TSTATE_CWP)) | (TSTATE_INITIAL_MM|TSTATE_IE) | (__asi << 24UL); \ regs->tpc = ((pc & (~3)) - 4); \ regs->tnpc = regs->tpc + 4; \ regs->y = 0; \ set_thread_wstate(1 << 3); \ if (current_thread_info()->utraps) { \ if (*(current_thread_info()->utraps) < 2) \ kfree(current_thread_info()->utraps); \ else \ (*(current_thread_info()->utraps))--; \ current_thread_info()->utraps = NULL; \ } \ __asm__ __volatile__( \ "stx %%g0, [%0 + %2 + 0x00]\n\t" \ "stx %%g0, [%0 + %2 + 0x08]\n\t" \ "stx %%g0, [%0 + %2 + 0x10]\n\t" \ "stx %%g0, [%0 + %2 + 0x18]\n\t" \ "stx %%g0, [%0 + %2 + 0x20]\n\t" \ "stx %%g0, [%0 + %2 + 0x28]\n\t" \ "stx %%g0, [%0 + %2 + 0x30]\n\t" \ "stx %%g0, [%0 + %2 + 0x38]\n\t" \ "stx %%g0, [%0 + %2 + 0x40]\n\t" \ "stx %%g0, [%0 + %2 + 0x48]\n\t" \ "stx %%g0, [%0 + %2 + 0x50]\n\t" \ "stx %%g0, [%0 + %2 + 0x58]\n\t" \ "stx %%g0, [%0 + %2 + 0x60]\n\t" \ "stx %%g0, [%0 + %2 + 0x68]\n\t" \ "stx %1, [%0 + %2 + 0x70]\n\t" \ "stx %%g0, [%0 + %2 + 0x78]\n\t" \ "wrpr %%g0, (1 << 3), %%wstate\n\t" \ : \ : "r" (regs), "r" (sp - sizeof(struct reg_window) - STACK_BIAS), \ "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))); \ fprs_write(0); \ current_thread_info()->xfsr[0] = 0; \ current_thread_info()->fpsaved[0] = 0; \ regs->tstate &= ~TSTATE_PEF; \ } while (0) #define start_thread32(regs, pc, sp) \ do { \ unsigned long __asi = ASI_PNF; \ pc &= 0x00000000ffffffffUL; \ sp &= 0x00000000ffffffffUL; \ regs->tstate = (regs->tstate & (TSTATE_CWP))|(TSTATE_INITIAL_MM|TSTATE_IE|TSTATE_AM) | (__asi << 24UL); \ regs->tpc = ((pc & (~3)) - 4); \ regs->tnpc = regs->tpc + 4; \ regs->y = 0; \ set_thread_wstate(2 << 3); \ if (current_thread_info()->utraps) { \ if (*(current_thread_info()->utraps) < 2) \ kfree(current_thread_info()->utraps); \ else \ (*(current_thread_info()->utraps))--; \ current_thread_info()->utraps = NULL; \ } \ __asm__ __volatile__( \ "stx %%g0, [%0 + %2 + 0x00]\n\t" \ "stx %%g0, [%0 + %2 + 0x08]\n\t" \ "stx %%g0, [%0 + %2 + 0x10]\n\t" \ "stx %%g0, [%0 + %2 + 0x18]\n\t" \ "stx %%g0, [%0 + %2 + 0x20]\n\t" \ "stx %%g0, [%0 + %2 + 0x28]\n\t" \ "stx %%g0, [%0 + %2 + 0x30]\n\t" \ "stx %%g0, [%0 + %2 + 0x38]\n\t" \ "stx %%g0, [%0 + %2 + 0x40]\n\t" \ "stx %%g0, [%0 + %2 + 0x48]\n\t" \ "stx %%g0, [%0 + %2 + 0x50]\n\t" \ "stx %%g0, [%0 + %2 + 0x58]\n\t" \ "stx %%g0, [%0 + %2 + 0x60]\n\t" \ "stx %%g0, [%0 + %2 + 0x68]\n\t" \ "stx %1, [%0 + %2 + 0x70]\n\t" \ "stx %%g0, [%0 + %2 + 0x78]\n\t" \ "wrpr %%g0, (2 << 3), %%wstate\n\t" \ : \ : "r" (regs), "r" (sp - sizeof(struct reg_window32)), \ "i" ((const unsigned long)(&((struct pt_regs *)0)->u_regs[0]))); \ fprs_write(0); \ current_thread_info()->xfsr[0] = 0; \ current_thread_info()->fpsaved[0] = 0; \ regs->tstate &= ~TSTATE_PEF; \ } while (0) /* Free all resources held by a thread. */ #define release_thread(tsk) do { } while (0) unsigned long get_wchan(struct task_struct *task); #define task_pt_regs(tsk) (task_thread_info(tsk)->kregs) #define KSTK_EIP(tsk) (task_pt_regs(tsk)->tpc) #define KSTK_ESP(tsk) (task_pt_regs(tsk)->u_regs[UREG_FP]) /* Please see the commentary in asm/backoff.h for a description of * what these instructions are doing and how they have been chosen. * To make a long story short, we are trying to yield the current cpu * strand during busy loops. */ #ifdef BUILD_VDSO #define cpu_relax() asm volatile("\n99:\n\t" \ "rd %%ccr, %%g0\n\t" \ "rd %%ccr, %%g0\n\t" \ "rd %%ccr, %%g0\n\t" \ ::: "memory") #else /* ! BUILD_VDSO */ #define cpu_relax() asm volatile("\n99:\n\t" \ "rd %%ccr, %%g0\n\t" \ "rd %%ccr, %%g0\n\t" \ "rd %%ccr, %%g0\n\t" \ ".section .pause_3insn_patch,\"ax\"\n\t"\ ".word 99b\n\t" \ "wr %%g0, 128, %%asr27\n\t" \ "nop\n\t" \ "nop\n\t" \ ".previous" \ ::: "memory") #endif /* Prefetch support. This is tuned for UltraSPARC-III and later. * UltraSPARC-I will treat these as nops, and UltraSPARC-II has * a shallower prefetch queue than later chips. */ #define ARCH_HAS_PREFETCH #define ARCH_HAS_PREFETCHW #define ARCH_HAS_SPINLOCK_PREFETCH static inline void prefetch(const void *x) { /* We do not use the read prefetch mnemonic because that * prefetches into the prefetch-cache which only is accessible * by floating point operations in UltraSPARC-III and later. * By contrast, "#one_write" prefetches into the L2 cache * in shared state. */ __asm__ __volatile__("prefetch [%0], #one_write" : /* no outputs */ : "r" (x)); } static inline void prefetchw(const void *x) { /* The most optimal prefetch to use for writes is * "#n_writes". This brings the cacheline into the * L2 cache in "owned" state. */ __asm__ __volatile__("prefetch [%0], #n_writes" : /* no outputs */ : "r" (x)); } #define spin_lock_prefetch(x) prefetchw(x) #define HAVE_ARCH_PICK_MMAP_LAYOUT int do_mathemu(struct pt_regs *regs, struct fpustate *f, bool illegal_insn_trap); #endif /* !(__ASSEMBLY__) */ #endif /* !(__ASM_SPARC64_PROCESSOR_H) */
Name | Type | Size | Permission | Actions |
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Kbuild | File | 491 B | 0644 |
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agp.h | File | 434 B | 0644 |
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apb.h | File | 1.06 KB | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-prototypes.h | File | 727 B | 0644 |
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asm.h | File | 1.08 KB | 0644 |
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asmmacro.h | File | 1.16 KB | 0644 |
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atomic.h | File | 219 B | 0644 |
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atomic_32.h | File | 2.26 KB | 0644 |
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atomic_64.h | File | 3.34 KB | 0644 |
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auxio.h | File | 310 B | 0644 |
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auxio_32.h | File | 2.55 KB | 0644 |
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auxio_64.h | File | 3.18 KB | 0644 |
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backoff.h | File | 2.7 KB | 0644 |
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barrier.h | File | 223 B | 0644 |
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barrier_32.h | File | 160 B | 0644 |
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barrier_64.h | File | 1.96 KB | 0644 |
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bbc.h | File | 9.76 KB | 0644 |
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bitext.h | File | 631 B | 0644 |
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bitops.h | File | 219 B | 0644 |
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bitops_32.h | File | 2.79 KB | 0644 |
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bitops_64.h | File | 1.64 KB | 0644 |
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btext.h | File | 145 B | 0644 |
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bug.h | File | 588 B | 0644 |
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bugs.h | File | 404 B | 0644 |
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cache.h | File | 649 B | 0644 |
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cacheflush.h | File | 373 B | 0644 |
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cacheflush_32.h | File | 1.97 KB | 0644 |
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cacheflush_64.h | File | 2.56 KB | 0644 |
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cachetlb_32.h | File | 882 B | 0644 |
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chafsr.h | File | 9.48 KB | 0644 |
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checksum.h | File | 227 B | 0644 |
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checksum_32.h | File | 6.81 KB | 0644 |
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checksum_64.h | File | 4.4 KB | 0644 |
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chmctrl.h | File | 7.91 KB | 0644 |
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clock.h | File | 231 B | 0644 |
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clocksource.h | File | 407 B | 0644 |
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cmpxchg.h | File | 223 B | 0644 |
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cmpxchg_32.h | File | 2.4 KB | 0644 |
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cmpxchg_64.h | File | 5.13 KB | 0644 |
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compat.h | File | 6.45 KB | 0644 |
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compat_signal.h | File | 565 B | 0644 |
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contregs.h | File | 1.9 KB | 0644 |
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cpu_type.h | File | 579 B | 0644 |
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cpudata.h | File | 378 B | 0644 |
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cpudata_32.h | File | 729 B | 0644 |
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cpudata_64.h | File | 1.13 KB | 0644 |
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current.h | File | 991 B | 0644 |
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dcr.h | File | 728 B | 0644 |
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dcu.h | File | 1.48 KB | 0644 |
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delay.h | File | 215 B | 0644 |
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delay_32.h | File | 907 B | 0644 |
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delay_64.h | File | 403 B | 0644 |
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device.h | File | 565 B | 0644 |
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dma-mapping.h | File | 632 B | 0644 |
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dma.h | File | 6.6 KB | 0644 |
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ebus_dma.h | File | 1.07 KB | 0644 |
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ecc.h | File | 4.34 KB | 0644 |
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eeprom.h | File | 254 B | 0644 |
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elf.h | File | 207 B | 0644 |
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elf_32.h | File | 3.19 KB | 0644 |
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elf_64.h | File | 6.47 KB | 0644 |
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estate.h | File | 2.23 KB | 0644 |
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extable_64.h | File | 727 B | 0644 |
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fb.h | File | 680 B | 0644 |
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fbio.h | File | 2.26 KB | 0644 |
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fhc.h | File | 4.43 KB | 0644 |
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floppy.h | File | 219 B | 0644 |
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floppy_32.h | File | 9.74 KB | 0644 |
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floppy_64.h | File | 18.83 KB | 0644 |
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fpumacro.h | File | 710 B | 0644 |
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ftrace.h | File | 800 B | 0644 |
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futex.h | File | 215 B | 0644 |
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futex_32.h | File | 82 B | 0644 |
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futex_64.h | File | 2.15 KB | 0644 |
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hardirq.h | File | 223 B | 0644 |
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hardirq_32.h | File | 334 B | 0644 |
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hardirq_64.h | File | 417 B | 0644 |
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head.h | File | 211 B | 0644 |
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head_32.h | File | 2.56 KB | 0644 |
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head_64.h | File | 2.13 KB | 0644 |
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hibernate.h | File | 421 B | 0644 |
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highmem.h | File | 2.02 KB | 0644 |
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hugetlb.h | File | 2.09 KB | 0644 |
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hvtramp.h | File | 782 B | 0644 |
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hw_irq.h | File | 88 B | 0644 |
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hypervisor.h | File | 110.71 KB | 0644 |
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ide.h | File | 2.19 KB | 0644 |
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idprom.h | File | 656 B | 0644 |
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intr_queue.h | File | 794 B | 0644 |
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io-unit.h | File | 2.41 KB | 0644 |
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io.h | File | 620 B | 0644 |
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io_32.h | File | 3.51 KB | 0644 |
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io_64.h | File | 10.66 KB | 0644 |
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ioctls.h | File | 358 B | 0644 |
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iommu.h | File | 215 B | 0644 |
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iommu_32.h | File | 5.73 KB | 0644 |
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iommu_64.h | File | 2.43 KB | 0644 |
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irq.h | File | 207 B | 0644 |
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irq_32.h | File | 526 B | 0644 |
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irq_64.h | File | 3.06 KB | 0644 |
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irqflags.h | File | 227 B | 0644 |
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irqflags_32.h | File | 1.03 KB | 0644 |
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irqflags_64.h | File | 1.91 KB | 0644 |
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jump_label.h | File | 1.01 KB | 0644 |
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kdebug.h | File | 219 B | 0644 |
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kdebug_32.h | File | 1.99 KB | 0644 |
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kdebug_64.h | File | 393 B | 0644 |
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kgdb.h | File | 1014 B | 0644 |
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kmap_types.h | File | 233 B | 0644 |
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kprobes.h | File | 1.41 KB | 0644 |
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ldc.h | File | 4.37 KB | 0644 |
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leon.h | File | 7.37 KB | 0644 |
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leon_amba.h | File | 8.09 KB | 0644 |
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leon_pci.h | File | 512 B | 0644 |
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lsu.h | File | 1.04 KB | 0644 |
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machines.h | File | 1.5 KB | 0644 |
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mbus.h | File | 2.93 KB | 0644 |
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mc146818rtc.h | File | 298 B | 0644 |
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mc146818rtc_32.h | File | 699 B | 0644 |
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mc146818rtc_64.h | File | 689 B | 0644 |
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mdesc.h | File | 2.99 KB | 0644 |
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memctrl.h | File | 311 B | 0644 |
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mman.h | File | 304 B | 0644 |
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mmu.h | File | 207 B | 0644 |
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mmu_32.h | File | 209 B | 0644 |
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mmu_64.h | File | 3.14 KB | 0644 |
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mmu_context.h | File | 239 B | 0644 |
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mmu_context_32.h | File | 1.07 KB | 0644 |
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mmu_context_64.h | File | 4.15 KB | 0644 |
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mmzone.h | File | 393 B | 0644 |
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msi.h | File | 774 B | 0644 |
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mxcc.h | File | 4.33 KB | 0644 |
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nmi.h | File | 354 B | 0644 |
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ns87303.h | File | 3.22 KB | 0644 |
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obio.h | File | 6.26 KB | 0644 |
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openprom.h | File | 7.3 KB | 0644 |
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oplib.h | File | 215 B | 0644 |
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oplib_32.h | File | 5.92 KB | 0644 |
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oplib_64.h | File | 8.12 KB | 0644 |
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page.h | File | 274 B | 0644 |
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page_32.h | File | 3.91 KB | 0644 |
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page_64.h | File | 4.49 KB | 0644 |
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parport.h | File | 5.68 KB | 0644 |
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pbm.h | File | 1.47 KB | 0644 |
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pci.h | File | 207 B | 0644 |
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pci_32.h | File | 1.09 KB | 0644 |
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pci_64.h | File | 1.49 KB | 0644 |
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pcic.h | File | 5.77 KB | 0644 |
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pcr.h | File | 1.85 KB | 0644 |
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percpu.h | File | 219 B | 0644 |
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percpu_32.h | File | 168 B | 0644 |
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percpu_64.h | File | 515 B | 0644 |
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perf_event.h | File | 802 B | 0644 |
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pgalloc.h | File | 223 B | 0644 |
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pgalloc_32.h | File | 1.91 KB | 0644 |
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pgalloc_64.h | File | 2.85 KB | 0644 |
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pgtable.h | File | 223 B | 0644 |
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pgtable_32.h | File | 11.35 KB | 0644 |
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pgtable_64.h | File | 30.71 KB | 0644 |
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pgtsrmmu.h | File | 6.05 KB | 0644 |
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pil.h | File | 1.08 KB | 0644 |
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processor.h | File | 231 B | 0644 |
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processor_32.h | File | 3.13 KB | 0644 |
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processor_64.h | File | 7.58 KB | 0644 |
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prom.h | File | 2.02 KB | 0644 |
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psr.h | File | 1.38 KB | 0644 |
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ptrace.h | File | 4.19 KB | 0644 |
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qrwlock.h | File | 205 B | 0644 |
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qspinlock.h | File | 215 B | 0644 |
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ross.h | File | 5.52 KB | 0644 |
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sbi.h | File | 3.34 KB | 0644 |
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scratchpad.h | File | 547 B | 0644 |
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seccomp.h | File | 225 B | 0644 |
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sections.h | File | 289 B | 0644 |
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setup.h | File | 1.52 KB | 0644 |
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sfafsr.h | File | 3.14 KB | 0644 |
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sfp-machine.h | File | 239 B | 0644 |
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sfp-machine_32.h | File | 6.79 KB | 0644 |
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sfp-machine_64.h | File | 3.1 KB | 0644 |
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shmparam.h | File | 227 B | 0644 |
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shmparam_32.h | File | 253 B | 0644 |
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shmparam_64.h | File | 306 B | 0644 |
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sigcontext.h | File | 2.55 KB | 0644 |
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signal.h | File | 835 B | 0644 |
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smp.h | File | 207 B | 0644 |
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smp_32.h | File | 3.29 KB | 0644 |
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smp_64.h | File | 1.84 KB | 0644 |
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sparsemem.h | File | 349 B | 0644 |
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spinlock.h | File | 227 B | 0644 |
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spinlock_32.h | File | 4.22 KB | 0644 |
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spinlock_64.h | File | 409 B | 0644 |
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spinlock_types.h | File | 549 B | 0644 |
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spitfire.h | File | 9.73 KB | 0644 |
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stacktrace.h | File | 166 B | 0644 |
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starfire.h | File | 418 B | 0644 |
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string.h | File | 1.13 KB | 0644 |
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string_32.h | File | 405 B | 0644 |
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string_64.h | File | 505 B | 0644 |
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sunbpp.h | File | 3.27 KB | 0644 |
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swift.h | File | 3.07 KB | 0644 |
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switch_to.h | File | 231 B | 0644 |
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switch_to_32.h | File | 3.53 KB | 0644 |
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switch_to_64.h | File | 2.58 KB | 0644 |
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syscall.h | File | 3.41 KB | 0644 |
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syscalls.h | File | 307 B | 0644 |
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termbits.h | File | 198 B | 0644 |
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termios.h | File | 4.94 KB | 0644 |
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thread_info.h | File | 239 B | 0644 |
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thread_info_32.h | File | 3.66 KB | 0644 |
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thread_info_64.h | File | 7.84 KB | 0644 |
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timer.h | File | 215 B | 0644 |
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timer_32.h | File | 1.18 KB | 0644 |
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timer_64.h | File | 2.37 KB | 0644 |
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timex.h | File | 215 B | 0644 |
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timex_32.h | File | 266 B | 0644 |
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timex_64.h | File | 423 B | 0644 |
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tlb.h | File | 207 B | 0644 |
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tlb_32.h | File | 520 B | 0644 |
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tlb_64.h | File | 913 B | 0644 |
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tlbflush.h | File | 227 B | 0644 |
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tlbflush_32.h | File | 621 B | 0644 |
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tlbflush_64.h | File | 1.73 KB | 0644 |
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topology.h | File | 227 B | 0644 |
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topology_32.h | File | 170 B | 0644 |
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topology_64.h | File | 1.51 KB | 0644 |
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trap_block.h | File | 6.51 KB | 0644 |
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traps.h | File | 577 B | 0644 |
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tsb.h | File | 12.17 KB | 0644 |
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tsunami.h | File | 1.85 KB | 0644 |
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ttable.h | File | 20.08 KB | 0644 |
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turbosparc.h | File | 3.78 KB | 0644 |
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uaccess.h | File | 363 B | 0644 |
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uaccess_32.h | File | 8.31 KB | 0644 |
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uaccess_64.h | File | 6.05 KB | 0644 |
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unaligned.h | File | 339 B | 0644 |
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unistd.h | File | 1.37 KB | 0644 |
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upa.h | File | 3.72 KB | 0644 |
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uprobes.h | File | 1.86 KB | 0644 |
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user.h | File | 102 B | 0644 |
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vaddrs.h | File | 2.02 KB | 0644 |
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vdso.h | File | 662 B | 0644 |
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vga.h | File | 964 B | 0644 |
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viking.h | File | 8.14 KB | 0644 |
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vio.h | File | 11.81 KB | 0644 |
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visasm.h | File | 1.51 KB | 0644 |
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vvar.h | File | 1.52 KB | 0644 |
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winmacro.h | File | 4.66 KB | 0644 |
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xor.h | File | 207 B | 0644 |
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xor_32.h | File | 7.31 KB | 0644 |
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xor_64.h | File | 2.5 KB | 0644 |
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