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Disintegrate asm/system.h for Unicore32 [based on ver #3, changed by gxt]

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Disintegrate asm/system.h for Unicore32. (Compilation successful)
The implementation details are not changed, but only splitted.
BTW, some codestyles are adjusted.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
This commit is contained in:
Guan Xuetao 2012-03-28 18:30:03 +01:00 committed by David Howells
parent bd119c6923
commit 8978bfd228
22 changed files with 225 additions and 173 deletions
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1
arch/unicore32/include/asm/Kbuild
View file

@ -3,7 +3,6 @@ include include/asm-generic/Kbuild.asm
generic-y += atomic.h
generic-y += auxvec.h
generic-y += bitsperlong.h
generic-y += bug.h
generic-y += bugs.h
generic-y += cputime.h
generic-y += current.h

28
arch/unicore32/include/asm/barrier.h Normal file
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@ -0,0 +1,28 @@
/*
* Memory barrier implementations for PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2012 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_BARRIER_H__
#define __UNICORE_BARRIER_H__
#define isb() __asm__ __volatile__ ("" : : : "memory")
#define dsb() __asm__ __volatile__ ("" : : : "memory")
#define dmb() __asm__ __volatile__ ("" : : : "memory")
#define mb() barrier()
#define rmb() barrier()
#define wmb() barrier()
#define smp_mb() barrier()
#define smp_rmb() barrier()
#define smp_wmb() barrier()
#define read_barrier_depends() do { } while (0)
#define smp_read_barrier_depends() do { } while (0)
#define set_mb(var, value) do { var = value; smp_mb(); } while (0)
#endif /* __UNICORE_BARRIER_H__ */

27
arch/unicore32/include/asm/bug.h Normal file
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@ -0,0 +1,27 @@
/*
* Bug handling for PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2012 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_BUG_H__
#define __UNICORE_BUG_H__
#include <asm-generic/bug.h>
struct pt_regs;
struct siginfo;
extern void die(const char *msg, struct pt_regs *regs, int err);
extern void uc32_notify_die(const char *str, struct pt_regs *regs,
struct siginfo *info, unsigned long err, unsigned long trap);
extern asmlinkage void __backtrace(void);
extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
extern void __show_regs(struct pt_regs *);
#endif /* __UNICORE_BUG_H__ */

61
arch/unicore32/include/asm/cmpxchg.h Normal file
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@ -0,0 +1,61 @@
/*
* Atomics xchg/cmpxchg for PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2012 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_CMPXCHG_H__
#define __UNICORE_CMPXCHG_H__
/*
* Generate a link failure on undefined symbol if the pointer points to a value
* of unsupported size.
*/
extern void __xchg_bad_pointer(void);
static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
int size)
{
unsigned long ret;
switch (size) {
case 1:
asm volatile("swapb %0, %1, [%2]"
: "=&r" (ret)
: "r" (x), "r" (ptr)
: "memory", "cc");
break;
case 4:
asm volatile("swapw %0, %1, [%2]"
: "=&r" (ret)
: "r" (x), "r" (ptr)
: "memory", "cc");
break;
default:
ret = __xchg_bad_pointer();
}
return ret;
}
#define xchg(ptr, x) \
((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
#include <asm-generic/cmpxchg-local.h>
/*
* cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
* them available.
*/
#define cmpxchg_local(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), \
(unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))))
#define cmpxchg64_local(ptr, o, n) \
__cmpxchg64_local_generic((ptr), (o), (n))
#include <asm-generic/cmpxchg.h>
#endif /* __UNICORE_CMPXCHG_H__ */

15
arch/unicore32/include/asm/exec.h Normal file
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@ -0,0 +1,15 @@
/*
* Process execution bits for PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2012 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_EXEC_H__
#define __UNICORE_EXEC_H__
#define arch_align_stack(x) (x)
#endif /* __UNICORE_EXEC_H__ */

48
arch/unicore32/include/asm/hwdef-copro.h Normal file
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@ -0,0 +1,48 @@
/*
* Co-processor register definitions for PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2012 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_HWDEF_COPRO_H__
#define __UNICORE_HWDEF_COPRO_H__
/*
* Control Register bits (CP#0 CR1)
*/
#define CR_M (1 << 0) /* MMU enable */
#define CR_A (1 << 1) /* Alignment abort enable */
#define CR_D (1 << 2) /* Dcache enable */
#define CR_I (1 << 3) /* Icache enable */
#define CR_B (1 << 4) /* Dcache write mechanism: write back */
#define CR_T (1 << 5) /* Burst enable */
#define CR_V (1 << 13) /* Vectors relocated to 0xffff0000 */
#ifndef __ASSEMBLY__
#define vectors_high() (cr_alignment & CR_V)
extern unsigned long cr_no_alignment; /* defined in entry.S */
extern unsigned long cr_alignment; /* defined in entry.S */
static inline unsigned int get_cr(void)
{
unsigned int val;
asm("movc %0, p0.c1, #0" : "=r" (val) : : "cc");
return val;
}
static inline void set_cr(unsigned int val)
{
asm volatile("movc p0.c1, %0, #0" : : "r" (val) : "cc");
isb();
}
extern void adjust_cr(unsigned long mask, unsigned long set);
#endif /* __ASSEMBLY__ */
#endif /* __UNICORE_HWDEF_COPRO_H__ */

1
arch/unicore32/include/asm/io.h
View file

@ -16,7 +16,6 @@
#include <asm/byteorder.h>
#include <asm/memory.h>
#include <asm/system.h>
#define PCI_IOBASE PKUNITY_PCILIO_BASE
#include <asm-generic/io.h>

30
arch/unicore32/include/asm/switch_to.h Normal file
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@ -0,0 +1,30 @@
/*
* Task switching for PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2012 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_SWITCH_TO_H__
#define __UNICORE_SWITCH_TO_H__
struct task_struct;
struct thread_info;
/*
* switch_to(prev, next) should switch from task `prev' to `next'
* `prev' will never be the same as `next'. schedule() itself
* contains the memory barrier to tell GCC not to cache `current'.
*/
extern struct task_struct *__switch_to(struct task_struct *,
struct thread_info *, struct thread_info *);
#define switch_to(prev, next, last) \
do { \
last = __switch_to(prev, task_thread_info(prev), \
task_thread_info(next)); \
} while (0)
#endif /* __UNICORE_SWITCH_TO_H__ */

166
arch/unicore32/include/asm/system.h
View file

@ -1,161 +1,5 @@
/*
* linux/arch/unicore32/include/asm/system.h
*
* Code specific to PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2010 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_SYSTEM_H__
#define __UNICORE_SYSTEM_H__
#ifdef __KERNEL__
/*
* CR1 bits (CP#0 CR1)
*/
#define CR_M (1 << 0) /* MMU enable */
#define CR_A (1 << 1) /* Alignment abort enable */
#define CR_D (1 << 2) /* Dcache enable */
#define CR_I (1 << 3) /* Icache enable */
#define CR_B (1 << 4) /* Dcache write mechanism: write back */
#define CR_T (1 << 5) /* Burst enable */
#define CR_V (1 << 13) /* Vectors relocated to 0xffff0000 */
#ifndef __ASSEMBLY__
#include <linux/linkage.h>
#include <linux/irqflags.h>
struct thread_info;
struct task_struct;
struct pt_regs;
void die(const char *msg, struct pt_regs *regs, int err);
struct siginfo;
void uc32_notify_die(const char *str, struct pt_regs *regs,
struct siginfo *info, unsigned long err, unsigned long trap);
void hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int,
struct pt_regs *),
int sig, int code, const char *name);
#define xchg(ptr, x) \
((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
extern asmlinkage void __backtrace(void);
extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
struct mm_struct;
extern void show_pte(struct mm_struct *mm, unsigned long addr);
extern void __show_regs(struct pt_regs *);
extern int cpu_architecture(void);
extern void cpu_init(void);
#define vectors_high() (cr_alignment & CR_V)
#define isb() __asm__ __volatile__ ("" : : : "memory")
#define dsb() __asm__ __volatile__ ("" : : : "memory")
#define dmb() __asm__ __volatile__ ("" : : : "memory")
#define mb() barrier()
#define rmb() barrier()
#define wmb() barrier()
#define smp_mb() barrier()
#define smp_rmb() barrier()
#define smp_wmb() barrier()
#define read_barrier_depends() do { } while (0)
#define smp_read_barrier_depends() do { } while (0)
#define set_mb(var, value) do { var = value; smp_mb(); } while (0)
#define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t");
extern unsigned long cr_no_alignment; /* defined in entry-unicore.S */
extern unsigned long cr_alignment; /* defined in entry-unicore.S */
static inline unsigned int get_cr(void)
{
unsigned int val;
asm("movc %0, p0.c1, #0" : "=r" (val) : : "cc");
return val;
}
static inline void set_cr(unsigned int val)
{
asm volatile("movc p0.c1, %0, #0 @set CR"
: : "r" (val) : "cc");
isb();
}
extern void adjust_cr(unsigned long mask, unsigned long set);
/*
* switch_to(prev, next) should switch from task `prev' to `next'
* `prev' will never be the same as `next'. schedule() itself
* contains the memory barrier to tell GCC not to cache `current'.
*/
extern struct task_struct *__switch_to(struct task_struct *,
struct thread_info *, struct thread_info *);
extern void panic(const char *fmt, ...);
#define switch_to(prev, next, last) \
do { \
last = __switch_to(prev, \
task_thread_info(prev), task_thread_info(next)); \
} while (0)
static inline unsigned long
__xchg(unsigned long x, volatile void *ptr, int size)
{
unsigned long ret;
switch (size) {
case 1:
asm volatile("@ __xchg1\n"
" swapb %0, %1, [%2]"
: "=&r" (ret)
: "r" (x), "r" (ptr)
: "memory", "cc");
break;
case 4:
asm volatile("@ __xchg4\n"
" swapw %0, %1, [%2]"
: "=&r" (ret)
: "r" (x), "r" (ptr)
: "memory", "cc");
break;
default:
panic("xchg: bad data size: ptr 0x%p, size %d\n",
ptr, size);
}
return ret;
}
#include <asm-generic/cmpxchg-local.h>
/*
* cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
* them available.
*/
#define cmpxchg_local(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), \
(unsigned long)(o), (unsigned long)(n), sizeof(*(ptr))))
#define cmpxchg64_local(ptr, o, n) \
__cmpxchg64_local_generic((ptr), (o), (n))
#include <asm-generic/cmpxchg.h>
#endif /* __ASSEMBLY__ */
#define arch_align_stack(x) (x)
#endif /* __KERNEL__ */
#endif
/* FILE TO BE DELETED. DO NOT ADD STUFF HERE! */
#include <asm/barrier.h>
#include <asm/cmpxchg.h>
#include <asm/exec.h>
#include <asm/switch_to.h>

1
arch/unicore32/include/asm/uaccess.h
View file

@ -16,7 +16,6 @@
#include <linux/errno.h>
#include <asm/memory.h>
#include <asm/system.h>
#define __copy_from_user __copy_from_user
#define __copy_to_user __copy_to_user

1
arch/unicore32/kernel/dma.c
View file

@ -18,7 +18,6 @@
#include <linux/errno.h>
#include <linux/io.h>
#include <asm/system.h>
#include <asm/irq.h>
#include <mach/hardware.h>
#include <mach/dma.h>

2
arch/unicore32/kernel/head.S
View file

@ -17,7 +17,7 @@
#include <generated/asm-offsets.h>
#include <asm/memory.h>
#include <asm/thread_info.h>
#include <asm/system.h>
#include <asm/hwdef-copro.h>
#include <asm/pgtable-hwdef.h>
#if (PHYS_OFFSET & 0x003fffff)

1
arch/unicore32/kernel/hibernate.c
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@ -15,7 +15,6 @@
#include <linux/suspend.h>
#include <linux/bootmem.h>
#include <asm/system.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>

1
arch/unicore32/kernel/irq.c
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@ -26,7 +26,6 @@
#include <linux/syscore_ops.h>
#include <linux/gpio.h>
#include <asm/system.h>
#include <mach/hardware.h>
#include "setup.h"

1
arch/unicore32/kernel/ksyms.c
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@ -20,7 +20,6 @@
#include <linux/io.h>
#include <asm/checksum.h>
#include <asm/system.h>
#include "ksyms.h"

1
arch/unicore32/kernel/process.c
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@ -34,7 +34,6 @@
#include <asm/cacheflush.h>
#include <asm/processor.h>
#include <asm/system.h>
#include <asm/stacktrace.h>
#include "setup.h"

3
arch/unicore32/kernel/setup.h
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@ -12,8 +12,11 @@
#ifndef __UNICORE_KERNEL_SETUP_H__
#define __UNICORE_KERNEL_SETUP_H__
#include <asm/hwdef-copro.h>
extern void paging_init(void);
extern void puv3_core_init(void);
extern void cpu_init(void);
extern void puv3_ps2_init(void);
extern void pci_puv3_preinit(void);

1
arch/unicore32/kernel/traps.c
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@ -26,7 +26,6 @@
#include <linux/unistd.h>
#include <asm/cacheflush.h>
#include <asm/system.h>
#include <asm/traps.h>
#include "setup.h"

2
arch/unicore32/mm/alignment.c
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@ -24,6 +24,8 @@
#include <asm/tlbflush.h>
#include <asm/unaligned.h>
#include "mm.h"
#define CODING_BITS(i) (i & 0xe0000120)
#define LDST_P_BIT(i) (i & (1 << 28)) /* Preindex */

1
arch/unicore32/mm/fault.c
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@ -20,7 +20,6 @@
#include <linux/sched.h>
#include <linux/io.h>
#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/tlbflush.h>

1
arch/unicore32/mm/flush.c
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@ -14,7 +14,6 @@
#include <linux/pagemap.h>
#include <asm/cacheflush.h>
#include <asm/system.h>
#include <asm/tlbflush.h>
void flush_cache_mm(struct mm_struct *mm)

5
arch/unicore32/mm/mm.h
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@ -9,6 +9,8 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <asm/hwdef-copro.h>
/* the upper-most page table pointer */
extern pmd_t *top_pmd;
extern int sysctl_overcommit_memory;
@ -34,6 +36,9 @@ struct mem_type {
const struct mem_type *get_mem_type(unsigned int type);
extern void __flush_dcache_page(struct address_space *, struct page *);
extern void hook_fault_code(int nr, int (*fn)
(unsigned long, unsigned int, struct pt_regs *),
int sig, int code, const char *name);
void __init bootmem_init(void);
void uc32_mm_memblock_reserve(void);