Disintegrate asm/system.h for C6X. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Mark Salter <msalter@redhat.com> cc: linux-c6x-dev@linux-c6x.orgtirimbino
David Howells
13 years ago
parent
ae47394658
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6a846f3f82
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/*
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* Port on Texas Instruments TMS320C6x architecture |
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* |
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* Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated |
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* Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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*/ |
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#ifndef _ASM_C6X_BARRIER_H |
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#define _ASM_C6X_BARRIER_H |
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#define nop() asm("NOP\n"); |
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#define mb() barrier() |
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#define rmb() barrier() |
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#define wmb() barrier() |
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#define set_mb(var, value) do { var = value; mb(); } while (0) |
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#define set_wmb(var, value) do { var = value; wmb(); } while (0) |
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#define smp_mb() barrier() |
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#define smp_rmb() barrier() |
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#define smp_wmb() barrier() |
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#define smp_read_barrier_depends() do { } while (0) |
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#endif /* _ASM_C6X_BARRIER_H */ |
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/*
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* Port on Texas Instruments TMS320C6x architecture |
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* |
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* Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated |
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* Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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*/ |
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#ifndef _ASM_C6X_BUG_H |
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#define _ASM_C6X_BUG_H |
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#include <linux/linkage.h> |
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#include <asm-generic/bug.h> |
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struct pt_regs; |
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extern void die(char *str, struct pt_regs *fp, int nr); |
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extern asmlinkage int process_exception(struct pt_regs *regs); |
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extern asmlinkage void enable_exception(void); |
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#endif /* _ASM_C6X_BUG_H */ |
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@ -0,0 +1,68 @@ |
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/*
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* Port on Texas Instruments TMS320C6x architecture |
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* |
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* Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated |
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* Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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*/ |
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#ifndef _ASM_C6X_CMPXCHG_H |
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#define _ASM_C6X_CMPXCHG_H |
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#include <linux/irqflags.h> |
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/*
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* Misc. functions |
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*/ |
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static inline unsigned int __xchg(unsigned int x, volatile void *ptr, int size) |
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{ |
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unsigned int tmp; |
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unsigned long flags; |
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local_irq_save(flags); |
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switch (size) { |
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case 1: |
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tmp = 0; |
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tmp = *((unsigned char *) ptr); |
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*((unsigned char *) ptr) = (unsigned char) x; |
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break; |
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case 2: |
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tmp = 0; |
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tmp = *((unsigned short *) ptr); |
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*((unsigned short *) ptr) = x; |
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break; |
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case 4: |
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tmp = 0; |
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tmp = *((unsigned int *) ptr); |
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*((unsigned int *) ptr) = x; |
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break; |
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} |
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local_irq_restore(flags); |
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return tmp; |
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} |
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#define xchg(ptr, x) \ |
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((__typeof__(*(ptr)))__xchg((unsigned int)(x), (void *) (ptr), \
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sizeof(*(ptr)))) |
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#define tas(ptr) xchg((ptr), 1) |
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#include <asm-generic/cmpxchg-local.h> |
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/*
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* cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make |
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* them available. |
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*/ |
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#define cmpxchg_local(ptr, o, n) \ |
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((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), \
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(unsigned long)(o), \
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(unsigned long)(n), \
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sizeof(*(ptr)))) |
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#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) |
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#include <asm-generic/cmpxchg.h> |
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#endif /* _ASM_C6X_CMPXCHG_H */ |
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@ -0,0 +1,6 @@ |
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#ifndef _ASM_C6X_EXEC_H |
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#define _ASM_C6X_EXEC_H |
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#define arch_align_stack(x) (x) |
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#endif /* _ASM_C6X_EXEC_H */ |
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@ -0,0 +1,63 @@ |
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/*
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* Port on Texas Instruments TMS320C6x architecture |
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* |
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* Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated |
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* Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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*/ |
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#ifndef _ASM_C6X_SPECIAL_INSNS_H |
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#define _ASM_C6X_SPECIAL_INSNS_H |
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#define get_creg(reg) \ |
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({ unsigned int __x; \
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asm volatile ("mvc .s2 " #reg ",%0\n" : "=b"(__x)); __x; }) |
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#define set_creg(reg, v) \ |
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do { unsigned int __x = (unsigned int)(v); \
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asm volatile ("mvc .s2 %0," #reg "\n" : : "b"(__x)); \
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} while (0) |
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#define or_creg(reg, n) \ |
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do { unsigned __x, __n = (unsigned)(n); \
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asm volatile ("mvc .s2 " #reg ",%0\n" \
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"or .l2 %1,%0,%0\n" \
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"mvc .s2 %0," #reg "\n" \
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"nop\n" \
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: "=&b"(__x) : "b"(__n)); \
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} while (0) |
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#define and_creg(reg, n) \ |
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do { unsigned __x, __n = (unsigned)(n); \
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asm volatile ("mvc .s2 " #reg ",%0\n" \
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"and .l2 %1,%0,%0\n" \
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"mvc .s2 %0," #reg "\n" \
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"nop\n" \
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: "=&b"(__x) : "b"(__n)); \
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} while (0) |
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#define get_coreid() (get_creg(DNUM) & 0xff) |
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/* Set/get IST */ |
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#define set_ist(x) set_creg(ISTP, x) |
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#define get_ist() get_creg(ISTP) |
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/*
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* Exception management |
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*/ |
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#define disable_exception() |
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#define get_except_type() get_creg(EFR) |
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#define ack_exception(type) set_creg(ECR, 1 << (type)) |
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#define get_iexcept() get_creg(IERR) |
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#define set_iexcept(mask) set_creg(IERR, (mask)) |
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#define _extu(x, s, e) \ |
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({ unsigned int __x; \
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asm volatile ("extu .S2 %3,%1,%2,%0\n" : \
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"=b"(__x) : "n"(s), "n"(e), "b"(x)); \
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__x; }) |
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#endif /* _ASM_C6X_SPECIAL_INSNS_H */ |
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@ -0,0 +1,33 @@ |
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/*
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* Port on Texas Instruments TMS320C6x architecture |
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* |
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* Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated |
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* Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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*/ |
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#ifndef _ASM_C6X_SWITCH_TO_H |
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#define _ASM_C6X_SWITCH_TO_H |
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#include <linux/linkage.h> |
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#define prepare_to_switch() do { } while (0) |
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struct task_struct; |
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struct thread_struct; |
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asmlinkage void *__switch_to(struct thread_struct *prev, |
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struct thread_struct *next, |
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struct task_struct *tsk); |
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#define switch_to(prev, next, last) \ |
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do { \
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current->thread.wchan = (u_long) __builtin_return_address(0); \
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(last) = __switch_to(&(prev)->thread, \
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&(next)->thread, (prev)); \
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mb(); \
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current->thread.wchan = 0; \
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} while (0) |
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#endif /* _ASM_C6X_SWITCH_TO_H */ |
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