[PATCH 53/60] microblaze_v4: setup.h string.h thread_info.h
monstr at seznam.cz
monstr at seznam.cz
Thu Jun 26 22:30:22 EST 2008
From: Michal Simek <monstr at monstr.eu>
Signed-off-by: Michal Simek <monstr at 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 at 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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