Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757781AbZFIGi0 (ORCPT ); Tue, 9 Jun 2009 02:38:26 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756590AbZFIGiS (ORCPT ); Tue, 9 Jun 2009 02:38:18 -0400 Received: from 219-87-157-169.static.tfn.net.tw ([219.87.157.169]:58380 "EHLO mswedge2.sunplus.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755111AbZFIGiQ (ORCPT ); Tue, 9 Jun 2009 02:38:16 -0400 To: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Arnd Bergmann , Andrew Morton , torvalds@linux-foundation.org MIME-Version: 1.0 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 X-Mailer: Lotus Notes Release 6.5 September 26, 2003 Message-ID: From: liqin.chen@sunplusct.com Date: Tue, 9 Jun 2009 14:33:24 +0800 X-MIMETrack: Serialize by Router on ctmail01/SunplusCT(Release 7.0.3FP1|February 24, 2008) at 2009/06/09 ?? 02:33:25, Serialize complete at 2009/06/09 ?? 02:33:25 Content-Type: text/plain; charset="US-ASCII" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 11714 Lines: 388 >From a8821850ed08c0d2a49a1564f2a10e0d2cc6f2f4 Mon Sep 17 00:00:00 2001 From: Chen Liqin 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 --- 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 + +#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 + +#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 + +/* + * 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< + +#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 + +#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 + +/* + * 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 + +#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 + +#endif /* _ASM_SCORE_TYPES_H */ -- 1.6.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/