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    Subject[PATCH 53/60] microblaze_v4: setup.h string.h thread_info.h
    Date
    From: Michal Simek <monstr@monstr.eu>


    Signed-off-by: Michal Simek <monstr@monstr.eu>
    ---
    include/asm-microblaze/setup.h | 41 +++++++++
    include/asm-microblaze/string.h | 20 +++++
    include/asm-microblaze/thread_info.h | 154 ++++++++++++++++++++++++++++++++++
    3 files changed, 215 insertions(+), 0 deletions(-)
    create mode 100644 include/asm-microblaze/setup.h
    create mode 100644 include/asm-microblaze/string.h
    create mode 100644 include/asm-microblaze/thread_info.h
    diff --git a/include/asm-microblaze/setup.h b/include/asm-microblaze/setup.h
    new file mode 100644
    index 0000000..9de20af
    --- /dev/null
    +++ b/include/asm-microblaze/setup.h
    @@ -0,0 +1,41 @@
    +/*
    + * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
    + * Copyright (C) 2006 Atmark Techno, Inc.
    + *
    + * This file is subject to the terms and conditions of the GNU General Public
    + * License. See the file "COPYING" in the main directory of this archive
    + * for more details.
    + */
    +
    +#ifndef _ASM_MICROBLAZE_SETUP_H
    +#define _ASM_MICROBLAZE_SETUP_H
    +
    +#include <linux/init.h>
    +
    +extern unsigned int boot_cpuid;
    +extern int have_of;
    +
    +#define COMMAND_LINE_SIZE 256
    +extern char cmd_line[COMMAND_LINE_SIZE];
    +
    +int __init setup_early_printk(char *opt);
    +void early_printk(const char *fmt, ...);
    +
    +#ifdef CONFIG_HEART_BEAT
    +void heartbeat(void);
    +#endif
    +
    +void system_timer_init(void);
    +void time_init(void);
    +unsigned long long sched_clock(void);
    +
    +void __init setup_memory(void);
    +void __init machine_early_init(const char *cmdline, unsigned int ram,
    + unsigned int fdt);
    +
    +void machine_restart(char *cmd);
    +void machine_shutdown(void);
    +void machine_halt(void);
    +void machine_power_off(void);
    +
    +#endif /* _ASM_MICROBLAZE_SETUP_H */
    diff --git a/include/asm-microblaze/string.h b/include/asm-microblaze/string.h
    new file mode 100644
    index 0000000..52a14a3
    --- /dev/null
    +++ b/include/asm-microblaze/string.h
    @@ -0,0 +1,20 @@
    +/*
    + * Copyright (C) 2006 Atmark Techno, Inc.
    + *
    + * This file is subject to the terms and conditions of the GNU General Public
    + * License. See the file "COPYING" in the main directory of this archive
    + * for more details.
    + */
    +
    +#ifndef _ASM_MICROBLAZE_STRING_H
    +#define _ASM_MICROBLAZE_STRING_H
    +
    +#define __HAVE_ARCH_MEMSET
    +#define __HAVE_ARCH_MEMCPY
    +#define __HAVE_ARCH_MEMMOVE
    +
    +extern void *memset(void *, int, __kernel_size_t);
    +extern void *memcpy(void *, const void *, __kernel_size_t);
    +extern void *memmove(void *, const void *, __kernel_size_t);
    +
    +#endif /* _ASM_MICROBLAZE_STRING_H */
    diff --git a/include/asm-microblaze/thread_info.h b/include/asm-microblaze/thread_info.h
    new file mode 100644
    index 0000000..d04d195
    --- /dev/null
    +++ b/include/asm-microblaze/thread_info.h
    @@ -0,0 +1,154 @@
    +/*
    + * Copyright (C) 2006 Atmark Techno, Inc.
    + *
    + * This file is subject to the terms and conditions of the GNU General Public
    + * License. See the file "COPYING" in the main directory of this archive
    + * for more details.
    + */
    +
    +#ifndef _ASM_MICROBLAZE_THREAD_INFO_H
    +#define _ASM_MICROBLAZE_THREAD_INFO_H
    +
    +#ifdef __KERNEL__
    +
    +/* we have 8k stack */
    +#define THREAD_SHIFT 13
    +#define THREAD_SIZE (1 << THREAD_SHIFT)
    +
    +#ifndef __ASSEMBLY__
    +# include <asm/processor.h>
    +# include <asm/segment.h>
    +
    +/*
    + * low level task data that entry.S needs immediate access to
    + * - this struct should fit entirely inside of one cache line
    + * - this struct shares the supervisor stack pages
    + * - if the contents of this structure are changed, the assembly constants
    + * must also be changed
    + */
    +
    +struct cpu_context {
    + __u32 r1; /* stack pointer */
    + __u32 r2;
    + /* dedicated registers */
    + __u32 r13;
    + __u32 r14;
    + __u32 r15;
    + __u32 r16;
    + __u32 r17;
    + __u32 r18;
    + /* non-volatile registers */
    + __u32 r19;
    + __u32 r20;
    + __u32 r21;
    + __u32 r22;
    + __u32 r23;
    + __u32 r24;
    + __u32 r25;
    + __u32 r26;
    + __u32 r27;
    + __u32 r28;
    + __u32 r29;
    + __u32 r30;
    + /* r31 is used as current task pointer */
    + /* special purpose registers */
    + __u32 msr;
    + __u32 ear;
    + __u32 esr;
    + __u32 fsr;
    +};
    +
    +struct thread_info {
    + struct task_struct *task; /* main task structure */
    + struct exec_domain *exec_domain; /* execution domain */
    + unsigned long flags; /* low level flags */
    + unsigned long status; /* thread-synchronous flags */
    + __u32 cpu; /* current CPU */
    + __s32 preempt_count; /* 0 => preemptable,< 0 => BUG*/
    + mm_segment_t addr_limit; /* thread address space */
    + struct restart_block restart_block;
    +
    + struct cpu_context cpu_context;
    +};
    +
    +/*
    + * macros/functions for gaining access to the thread information structure
    + *
    + * preempt_count needs to be 1 initially, until the scheduler is functional.
    + */
    +#define INIT_THREAD_INFO(tsk) \
    +{ \
    + .task = &tsk, \
    + .exec_domain = &default_exec_domain, \
    + .flags = 0, \
    + .cpu = 0, \
    + .preempt_count = 1, \
    + .addr_limit = KERNEL_DS, \
    + .restart_block = { \
    + .fn = do_no_restart_syscall, \
    + }, \
    +}
    +
    +#define init_thread_info (init_thread_union.thread_info)
    +#define init_stack (init_thread_union.stack)
    +
    +/* how to get the thread information struct from C */
    +static inline struct thread_info *current_thread_info(void)
    +{
    + register unsigned long sp asm("r1");
    +
    + return (struct thread_info *)(sp & ~(THREAD_SIZE-1));
    +}
    +
    +/* thread information allocation */
    +#define alloc_thread_info(tsk) \
    + ((struct thread_info *) __get_free_pages(GFP_KERNEL, 1))
    +#define free_thread_info(ti) free_pages((unsigned long) (ti), 1)
    +
    +#endif /* __ASSEMBLY__ */
    +
    +#define PREEMPT_ACTIVE 0x10000000
    +
    +/*
    + * thread information flags
    + * - these are process state flags that various assembly files may
    + * need to access
    + * - pending work-to-be-done flags are in LSW
    + * - other flags in MSW
    + */
    +#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
    +#define TIF_NOTIFY_RESUME 1 /* resumption notification requested */
    +#define TIF_SIGPENDING 2 /* signal pending */
    +#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
    +/* restore singlestep on return to user mode */
    +#define TIF_SINGLESTEP 4
    +#define TIF_IRET 5 /* return with iret */
    +#define TIF_MEMDIE 6
    +/* true if poll_idle() is polling TIF_NEED_RESCHED */
    +#define TIF_POLLING_NRFLAG 16
    +
    +#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
    +#define _TIF_NOTIFY_RESUME (1<<TIF_NOTIFY_RESUME)
    +#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
    +#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
    +#define _TIF_SINGLESTEP (1<<TIF_SINGLESTEP)
    +#define _TIF_IRET (1<<TIF_IRET)
    +#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
    +
    +/* work to do on interrupt/exception return */
    +#define _TIF_WORK_MASK 0x0000FFFE
    +/* work to do on any return to u-space */
    +#define _TIF_ALLWORK_MASK 0x0000FFFF
    +
    +/*
    + * Thread-synchronous status.
    + *
    + * This is different from the flags in that nobody else
    + * ever touches our thread-synchronous status, so we don't
    + * have to worry about atomic accesses.
    + */
    +/* FPU was used by this task this quantum (SMP) */
    +#define TS_USEDFPU 0x0001
    +
    +#endif /* __KERNEL__ */
    +#endif /* _ASM_MICROBLAZE_THREAD_INFO_H */
    --
    1.5.4.GIT


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