[microblaze-uclinux] [PATCH 50/56] microblaze_v2: setup.h string.h thread_info.h

[monstr@xxxxxxxxx]

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

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