From: Michal Simek <monstr@xxxxxxxxx> Signed-off-by: Michal Simek <monstr@xxxxxxxxx> --- include/asm-microblaze/setup.h | 42 +++++++++ include/asm-microblaze/string.h | 22 +++++ include/asm-microblaze/thread_info.h | 155 ++++++++++++++++++++++++++++++++++ 3 files changed, 219 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..ba4bf7d --- /dev/null +++ b/include/asm-microblaze/setup.h @@ -0,0 +1,42 @@ +/* + * include/asm-microblaze/setup.h + * + * 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. + * + * Copyright (C) 2006 Atmark Techno, Inc. + */ + +#ifndef _ASM_MICROBLAZE_SETUP_H +#define _ASM_MICROBLAZE_SETUP_H + +#include <linux/init.h> + +extern unsigned int boot_cpuid; + +#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); +unsigned long do_gettimeoffset(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..bf2051c --- /dev/null +++ b/include/asm-microblaze/string.h @@ -0,0 +1,22 @@ +/* + * include/asm-microblaze/string.h + * + * 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. + * + * Copyright (C) 2006 Atmark Techno, Inc. + */ + +#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..8a46c14 --- /dev/null +++ b/include/asm-microblaze/thread_info.h @@ -0,0 +1,155 @@ +/* + * include/asm-microblaze/thread_info.h + * + * 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. + * + * Copyright (C) 2006 Atmark Techno, Inc. + */ + +#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 sp; + __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; + /* 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 -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html