>From a8821850ed08c0d2a49a1564f2a10e0d2cc6f2f4 Mon Sep 17 00:00:00 2001
From: Chen Liqin <liqin.chen@xxxxxxxxxxxxx>
Date: Tue, 9 Jun 2009 13:43:14 +0800
Subject: [PATCH 17/27] score: create head files termbits.h termios.h
thread_info.h timex.h tlbflush.h tlb.h topology.h types.h
Signed-off-by: Chen Liqin <liqin.chen@xxxxxxxxxxxxx>
---
arch/score/include/asm/termbits.h | 6 ++
arch/score/include/asm/termios.h | 6 ++
arch/score/include/asm/thread_info.h | 103 ++++++++++++++++++++++++
arch/score/include/asm/timex.h | 6 ++
arch/score/include/asm/tlb.h | 17 ++++
arch/score/include/asm/tlbflush.h | 142
++++++++++++++++++++++++++++++++++
arch/score/include/asm/topology.h | 6 ++
arch/score/include/asm/types.h | 6 ++
8 files changed, 292 insertions(+), 0 deletions(-)
create mode 100644 arch/score/include/asm/termbits.h
create mode 100644 arch/score/include/asm/termios.h
create mode 100644 arch/score/include/asm/thread_info.h
create mode 100644 arch/score/include/asm/timex.h
create mode 100644 arch/score/include/asm/tlb.h
create mode 100644 arch/score/include/asm/tlbflush.h
create mode 100644 arch/score/include/asm/topology.h
create mode 100644 arch/score/include/asm/types.h
diff --git a/arch/score/include/asm/termbits.h
b/arch/score/include/asm/termbits.h
new file mode 100644
index 0000000..9a95c14
--- /dev/null
+++ b/arch/score/include/asm/termbits.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_TERMBITS_H
+#define _ASM_SCORE_TERMBITS_H
+
+#include <asm-generic/termbits.h>
+
+#endif /* _ASM_SCORE_TERMBITS_H */
diff --git a/arch/score/include/asm/termios.h
b/arch/score/include/asm/termios.h
new file mode 100644
index 0000000..40984e8
--- /dev/null
+++ b/arch/score/include/asm/termios.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_TERMIOS_H
+#define _ASM_SCORE_TERMIOS_H
+
+#include <asm-generic/termios.h>
+
+#endif /* _ASM_SCORE_TERMIOS_H */
diff --git a/arch/score/include/asm/thread_info.h
b/arch/score/include/asm/thread_info.h
new file mode 100644
index 0000000..0af8ca0
--- /dev/null
+++ b/arch/score/include/asm/thread_info.h
@@ -0,0 +1,103 @@
+#ifndef _ASM_SCORE_THREAD_INFO_H
+#define _ASM_SCORE_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+#define KU_MASK 0x08
+#define KU_USER 0x08
+#define KU_KERN 0x00
+
+#ifndef __ASSEMBLY__
+
+#include <asm/processor.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 thread_info {
+ struct task_struct *task; /* main task structure */
+ struct exec_domain *exec_domain; /* execution domain */
+ unsigned long flags; /* low level flags */
+ unsigned long tp_value; /* thread pointer */
+ __u32 cpu; /* current CPU */
+
+ /* 0 => preemptable, < 0 => BUG */
+ int preempt_count;
+
+ /*
+ * thread address space:
+ * 0-0xBFFFFFFF for user-thead
+ * 0-0xFFFFFFFF for kernel-thread
+ */
+ mm_segment_t addr_limit;
+ struct restart_block restart_block;
+ struct pt_regs *regs;
+};
+
+/*
+ * 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, \
+ .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. */
+register struct thread_info *__current_thread_info __asm__("r28");
+#define current_thread_info() __current_thread_info
+
+/* thread information allocation */
+#define THREAD_SIZE_ORDER (1)
+#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
+#define THREAD_MASK (THREAD_SIZE - 1UL)
+#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
+
+#define alloc_thread_info(tsk) kmalloc(THREAD_SIZE, GFP_KERNEL)
+#define free_thread_info(info) kfree(info)
+
+#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_SIGPENDING 1 /* signal pending */
+#define TIF_NEED_RESCHED 2 /* rescheduling necessary */
+#define TIF_RESTORE_SIGMASK 9 /* restore signal mask in
do_signal() */
+#define TIF_POLLING_NRFLAG 17 /* true if poll_idle() is polling
+ TIF_NEED_RESCHED */
+#define TIF_MEMDIE 18
+
+#define _TIF_SYSCALL_TRACE (1<<TIF_SYSCALL_TRACE)
+#define _TIF_SIGPENDING (1<<TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED (1<<TIF_NEED_RESCHED)
+#define _TIF_RESTORE_SIGMASK (1<<TIF_RESTORE_SIGMASK)
+#define _TIF_POLLING_NRFLAG (1<<TIF_POLLING_NRFLAG)
+
+#define _TIF_WORK_MASK (0x0000ffff)
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_SCORE_THREAD_INFO_H */
diff --git a/arch/score/include/asm/timex.h
b/arch/score/include/asm/timex.h
new file mode 100644
index 0000000..5f3c92b
--- /dev/null
+++ b/arch/score/include/asm/timex.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_TIMEX_H
+#define _ASM_SCORE_TIMEX_H
+
+#include <asm-generic/timex.h>
+
+#endif /* _ASM_SCORE_TIMEX_H */
diff --git a/arch/score/include/asm/tlb.h b/arch/score/include/asm/tlb.h
new file mode 100644
index 0000000..46882ed
--- /dev/null
+++ b/arch/score/include/asm/tlb.h
@@ -0,0 +1,17 @@
+#ifndef _ASM_SCORE_TLB_H
+#define _ASM_SCORE_TLB_H
+
+/*
+ * SCORE doesn't need any special per-pte or per-vma handling, except
+ * we need to flush cache for area to be unmapped.
+ */
+#define tlb_start_vma(tlb, vma) do {} while (0)
+#define tlb_end_vma(tlb, vma) do {} while (0)
+#define __tlb_remove_tlb_entry(tlb, ptep, address) do {} while (0)
+#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
+
+extern void score7_FTLB_refill_Handler(void);
+
+#include <asm-generic/tlb.h>
+
+#endif /* _ASM_SCORE_TLB_H */
diff --git a/arch/score/include/asm/tlbflush.h
b/arch/score/include/asm/tlbflush.h
new file mode 100644
index 0000000..9cce978
--- /dev/null
+++ b/arch/score/include/asm/tlbflush.h
@@ -0,0 +1,142 @@
+#ifndef _ASM_SCORE_TLBFLUSH_H
+#define _ASM_SCORE_TLBFLUSH_H
+
+#include <linux/mm.h>
+
+/*
+ * TLB flushing:
+ *
+ * - flush_tlb_all() flushes all processes TLB entries
+ * - flush_tlb_mm(mm) flushes the specified mm context TLB entries
+ * - flush_tlb_page(vma, vmaddr) flushes one page
+ * - flush_tlb_range(vma, start, end) flushes a range of pages
+ * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
+ */
+extern void local_flush_tlb_all(void);
+extern void local_flush_tlb_mm(struct mm_struct *mm);
+extern void local_flush_tlb_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end);
+extern void local_flush_tlb_kernel_range(unsigned long start,
+ unsigned long end);
+extern void local_flush_tlb_page(struct vm_area_struct *vma,
+ unsigned long page);
+extern void local_flush_tlb_one(unsigned long vaddr);
+
+#define flush_tlb_all() local_flush_tlb_all()
+#define flush_tlb_mm(mm) local_flush_tlb_mm(mm)
+#define flush_tlb_range(vma, vmaddr, end) \
+ local_flush_tlb_range(vma, vmaddr, end)
+#define flush_tlb_kernel_range(vmaddr, end) \
+ local_flush_tlb_kernel_range(vmaddr, end)
+#define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page)
+#define flush_tlb_one(vaddr) local_flush_tlb_one(vaddr)
+
+#ifndef __ASSEMBLY__
+
+static inline unsigned long pevn_get(void)
+{
+ unsigned long val;
+
+ __asm__ __volatile__(
+ "mfcr %0, cr11\n"
+ "nop\nnop\n"
+ : "=r" (val));
+
+ return val;
+}
+
+static inline void pevn_set(unsigned long val)
+{
+ __asm__ __volatile__(
+ "mtcr %0, cr11\n"
+ "nop\nnop\nnop\nnop\nnop\n"
+ : : "r" (val));
+}
+
+static inline void pectx_set(unsigned long val)
+{
+ __asm__ __volatile__(
+ "mtcr %0, cr12\n"
+ "nop\nnop\nnop\nnop\nnop\n"
+ : : "r" (val));
+}
+
+static inline unsigned long pectx_get(void)
+{
+ unsigned long val;
+ __asm__ __volatile__(
+ "mfcr %0, cr12\n"
+ "nop\nnop\n"
+ : "=r" (val));
+ return val;
+}
+static inline unsigned long tlblock_get(void)
+{
+ unsigned long val;
+
+ __asm__ __volatile__(
+ "mfcr %0, cr7\n"
+ "nop\nnop\n"
+ : "=r" (val));
+ return val;
+}
+static inline void tlblock_set(unsigned long val)
+{
+ __asm__ __volatile__(
+ "mtcr %0, cr7\n"
+ "nop\nnop\nnop\nnop\nnop\n"
+ : : "r" (val));
+}
+
+static inline void tlbpt_set(unsigned long val)
+{
+ __asm__ __volatile__(
+ "mtcr %0, cr8\n"
+ "nop\nnop\nnop\nnop\nnop\n"
+ : : "r" (val));
+}
+
+static inline long tlbpt_get(void)
+{
+ long val;
+
+ __asm__ __volatile__(
+ "mfcr %0, cr8\n"
+ "nop\nnop\n"
+ : "=r" (val));
+
+ return val;
+}
+
+static inline void peaddr_set(unsigned long val)
+{
+ __asm__ __volatile__(
+ "mtcr %0, cr9\n"
+ "nop\nnop\nnop\nnop\nnop\n"
+ : : "r" (val));
+}
+
+/* TLB operations. */
+static inline void tlb_probe(void)
+{
+ __asm__ __volatile__("stlb;nop;nop;nop;nop;nop");
+}
+
+static inline void tlb_read(void)
+{
+ __asm__ __volatile__("mftlb;nop;nop;nop;nop;nop");
+}
+
+static inline void tlb_write_indexed(void)
+{
+ __asm__ __volatile__("mtptlb;nop;nop;nop;nop;nop");
+}
+
+static inline void tlb_write_random(void)
+{
+ __asm__ __volatile__("mtrtlb;nop;nop;nop;nop;nop");
+}
+
+#endif /* Not __ASSEMBLY__ */
+
+#endif /* _ASM_SCORE_TLBFLUSH_H */
diff --git a/arch/score/include/asm/topology.h
b/arch/score/include/asm/topology.h
new file mode 100644
index 0000000..425fba3
--- /dev/null
+++ b/arch/score/include/asm/topology.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_TOPOLOGY_H
+#define _ASM_SCORE_TOPOLOGY_H
+
+#include <asm-generic/topology.h>
+
+#endif /* _ASM_SCORE_TOPOLOGY_H */
diff --git a/arch/score/include/asm/types.h
b/arch/score/include/asm/types.h
new file mode 100644
index 0000000..2140032
--- /dev/null
+++ b/arch/score/include/asm/types.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_SCORE_TYPES_H
+#define _ASM_SCORE_TYPES_H
+
+#include <asm-generic/types.h>
+
+#endif /* _ASM_SCORE_TYPES_H */
--
1.6.2
--
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