Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758742AbYGHMPv (ORCPT ); Tue, 8 Jul 2008 08:15:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758976AbYGHMMt (ORCPT ); Tue, 8 Jul 2008 08:12:49 -0400 Received: from 238.225.broadband7.iol.cz ([88.102.225.238]:27259 "EHLO monstr.eu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1758934AbYGHMMp (ORCPT ); Tue, 8 Jul 2008 08:12:45 -0400 From: monstr@monstr.eu To: linux-kernel@vger.kernel.org Cc: monstr@seznam.cz, arnd@arndb.de, linux-arch@vger.kernel.org, stephen.neuendorffer@xilinx.com, John.Linn@xilinx.com, john.williams@petalogix.com, matthew@wil.cx, will.newton@gmail.com, drepper@redhat.com, microblaze-uclinux@itee.uq.edu.au, grant.likely@secretlab.ca, vapier.adi@gmail.com, alan@lxorguk.ukuu.org.uk, hpa@zytor.com, lethal@linux-sh.org, florian@openwrt.org, Michal Simek Subject: [PATCH 51/58] microblaze_v5: setup.h string.h thread_info.h Date: Tue, 8 Jul 2008 13:59:51 +0200 Message-Id: <1054e7643bd01351ba67273043203df322b49bea.1215517976.git.monstr@monstr.eu> X-Mailer: git-send-email 1.5.4.GIT In-Reply-To: <6c03dcf8dbfd910ebf6c2f95db61d0456aa943e1.1215517976.git.monstr@monstr.eu> References: <1215518398-5057-1-git-send-email-monstr@monstr.eu> <80a2e46f2fb93812ab12bf79c703e8e2d6b0faa0.1215517976.git.monstr@monstr.eu> <58f35f498bac29e7105c589c06567e86c5a42dd5.1215517976.git.monstr@monstr.eu> <810775b1bb678003923039726a9153ee34fb67b4.1215517976.git.monstr@monstr.eu> <2a24e5bc2cfbd349613ef10c716a28f04ce24a9f.1215517976.git.monstr@monstr.eu> <3171c5cf21eefc79665165f4a14bc5b68dd03f95.1215517976.git.monstr@monstr.eu> <9be4eff2f4d015023c453eaec3b3473a44380491.1215517976.git.monstr@monstr.eu> <4409daf2ac356e902a8f091bb5908eb8a90218bc.1215517976.git.monstr@monstr.eu> <1f9a1f345caa749cb630cf85f95f217366395069.1215517976.git.monstr@monstr.eu> <59d7e0a5f38b8d38f01f357a071fc93eed36f3a8.1215517976.git.monstr@monstr.eu> <143afcf84af583ab66da7e8acfc9eb03b7f3eaa0.1215517976.git.monstr@monstr.eu> <2aa1ac7891af57959237aae3addf4bbe607f55d7.1215517976.git.monstr@monstr.eu> <875ba2708f6cd3c585e4d965142e2feb07c39a0e.1215517976.git.monstr@monstr.eu> <5da1d8f069f18f14faee8c4bff736791179ef6f1.1215517976.git.monstr@monstr.eu> <9a32168fe72b772f301216a7090670474af78e49.1215517976.git.monstr@monstr.eu> <7ada4bceefc1806a2c8ef73676b7aabd8ac1cad6.1215517976.git.monstr@monstr.eu> <701c1dac442ac09f5010cb5356cc1a12bb0abfe1.1215517976.git.monstr@monstr.eu> <9b48e9d85b4a5a6dcffce8eef62b232b6bfac8e8.1215517976.git.monstr@monstr.eu> <04b0b222b84ba9cfe2507a9081f4d715f2323733.1215517976.git.monstr@monstr.eu> <6e5687d37386334cf122d1eafcca0c6649c955be.1215517976.git.monstr@monstr.eu> <689cff1b6d98f60d8f8abc4472193688b524284d.1215517976.git.monstr@monstr.eu> <9664f18e7e86af4332018549b29bf0797d6afcd5.1215517976.git.monstr@monstr.eu> <7a16429cfc461420883dbaa80c16047e5a1a91c1.1215517976.git.monstr@monstr.eu> <64089967061955b7a29eb6d4e6269ff75b5442f2.1215517976.git.monstr@monstr.eu> <92e3ab88c2174acf4e25c474c1f68ffd4db72ca6.1215517976.git.monstr@monstr.eu> <5174afd0eaa5c6cb9344ea3217199e48899be313.1215517976.git.monstr@monstr.eu> <5b2ed516b2e51d5117386c1b6eb814acc6e5a157.1215517976.git.monstr@monstr.eu> <421f4b613d4dbd983df1545a9a163347e5bd1c56.1215517976.git.monstr@monstr.eu> <0d39e8f03c487c004efa226c5ee81a81a8856768.1215517976.git.monstr@monstr.eu> <2ac3915482a9a50f7a4531908305b326baa2008e.1215517976.git.monstr@monstr.eu> <3c5eac3dbdbf538c727a4a8fe336cdd55650bb37.1215517976.git.monstr@monstr.eu> <6c03dcf8dbfd910ebf6c2f95db61d0456aa943e1.1215517976.git.monstr@monstr.eu> In-Reply-To: <80a2e46f2fb93812ab12bf79c703e8e2d6b0faa0.1215517976.git.monstr@monstr.eu> References: <80a2e46f2fb93812ab12bf79c703e8e2d6b0faa0.1215517976.git.monstr@monstr.eu> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7162 Lines: 247 From: Michal Simek Acked-by: Stephen Neuendorffer Signed-off-by: Michal Simek --- include/asm-microblaze/setup.h | 34 ++++++++ include/asm-microblaze/string.h | 20 +++++ include/asm-microblaze/thread_info.h | 154 ++++++++++++++++++++++++++++++++++ 3 files changed, 208 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..5705d36 --- /dev/null +++ b/include/asm-microblaze/setup.h @@ -0,0 +1,34 @@ +/* + * Copyright (C) 2007-2008 Michal Simek + * 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 + +extern unsigned int boot_cpuid; +extern int have_of; + +#define COMMAND_LINE_SIZE 256 +extern char cmd_line[COMMAND_LINE_SIZE]; + +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 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 +# 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 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<