From 683e0253dbd12554b2ee969b15e68105252bff57 Mon Sep 17 00:00:00 2001 From: Glauber de Oliveira Costa Date: Wed, 30 Jan 2008 13:31:27 +0100 Subject: [PATCH] x86: unify common parts of processor.h This patch moves the pieces of processor_32.h and processor_64 that are equal to processor.h. Only what's exactly the same is moved around, the rest not being touched. Signed-off-by: Glauber de Oliveira Costa Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- include/asm-x86/processor.h | 120 +++++++++++++++++++++++++++++++++ include/asm-x86/processor_32.h | 111 ------------------------------ include/asm-x86/processor_64.h | 116 ------------------------------- 3 files changed, 120 insertions(+), 227 deletions(-) diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h index 8b779476688..52e3637ef59 100644 --- a/include/asm-x86/processor.h +++ b/include/asm-x86/processor.h @@ -3,6 +3,10 @@ #include +/* Forward declaration, a strange C thing */ +struct task_struct; +struct mm_struct; + #include #include @@ -29,6 +33,11 @@ static inline void load_cr3(pgd_t *pgdir) # include "processor_64.h" #endif +extern void print_cpu_info(struct cpuinfo_x86 *); +extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c); +extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c); +extern unsigned short num_cache_leaves; + static inline unsigned long native_get_debugreg(int regno) { unsigned long val = 0; /* Damn you, gcc! */ @@ -138,7 +147,53 @@ static inline void clear_in_cr4(unsigned long mask) write_cr4(cr4); } +struct microcode_header { + unsigned int hdrver; + unsigned int rev; + unsigned int date; + unsigned int sig; + unsigned int cksum; + unsigned int ldrver; + unsigned int pf; + unsigned int datasize; + unsigned int totalsize; + unsigned int reserved[3]; +}; + +struct microcode { + struct microcode_header hdr; + unsigned int bits[0]; +}; + +typedef struct microcode microcode_t; +typedef struct microcode_header microcode_header_t; + +/* microcode format is extended from prescott processors */ +struct extended_signature { + unsigned int sig; + unsigned int pf; + unsigned int cksum; +}; + +struct extended_sigtable { + unsigned int count; + unsigned int cksum; + unsigned int reserved[3]; + struct extended_signature sigs[0]; +}; + +/* + * create a kernel thread without removing it from tasklists + */ +extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); + +/* Free all resources held by a thread. */ +extern void release_thread(struct task_struct *); + +/* Prepare to copy thread state - unlazy all lazy status */ +extern void prepare_to_copy(struct task_struct *tsk); +unsigned long get_wchan(struct task_struct *p); /* * Generic CPUID function @@ -196,4 +251,69 @@ static inline unsigned int cpuid_edx(unsigned int op) return edx; } +/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ +static inline void rep_nop(void) +{ + __asm__ __volatile__("rep;nop": : :"memory"); +} + +/* Stop speculative execution */ +static inline void sync_core(void) +{ + int tmp; + asm volatile("cpuid" : "=a" (tmp) : "0" (1) + : "ebx", "ecx", "edx", "memory"); +} + +#define cpu_relax() rep_nop() + +static inline void __monitor(const void *eax, unsigned long ecx, + unsigned long edx) +{ + /* "monitor %eax,%ecx,%edx;" */ + asm volatile( + ".byte 0x0f,0x01,0xc8;" + : :"a" (eax), "c" (ecx), "d"(edx)); +} + +static inline void __mwait(unsigned long eax, unsigned long ecx) +{ + /* "mwait %eax,%ecx;" */ + asm volatile( + ".byte 0x0f,0x01,0xc9;" + : :"a" (eax), "c" (ecx)); +} + +static inline void __sti_mwait(unsigned long eax, unsigned long ecx) +{ + /* "mwait %eax,%ecx;" */ + asm volatile( + "sti; .byte 0x0f,0x01,0xc9;" + : :"a" (eax), "c" (ecx)); +} + +extern void mwait_idle_with_hints(unsigned long eax, unsigned long ecx); + +extern int force_mwait; + +extern void select_idle_routine(const struct cpuinfo_x86 *c); + +extern unsigned long boot_option_idle_override; + +/* Boot loader type from the setup header */ +extern int bootloader_type; +#define cache_line_size() (boot_cpu_data.x86_cache_alignment) + +#define HAVE_ARCH_PICK_MMAP_LAYOUT 1 +#define ARCH_HAS_PREFETCHW +#define ARCH_HAS_SPINLOCK_PREFETCH + +#define spin_lock_prefetch(x) prefetchw(x) +/* This decides where the kernel will search for a free chunk of vm + * space during mmap's. + */ +#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3)) + +#define KSTK_EIP(task) (task_pt_regs(task)->ip) + #endif diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h index 516a38ad2a7..9e119d3789b 100644 --- a/include/asm-x86/processor_32.h +++ b/include/asm-x86/processor_32.h @@ -109,10 +109,6 @@ void __init cpu_detect(struct cpuinfo_x86 *c); extern void identify_boot_cpu(void); extern void identify_secondary_cpu(struct cpuinfo_x86 *); -extern void print_cpu_info(struct cpuinfo_x86 *); -extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c); -extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c); -extern unsigned short num_cache_leaves; #ifdef CONFIG_X86_HT extern void detect_ht(struct cpuinfo_x86 *c); @@ -120,32 +116,6 @@ extern void detect_ht(struct cpuinfo_x86 *c); static inline void detect_ht(struct cpuinfo_x86 *c) {} #endif -/* Stop speculative execution */ -static inline void sync_core(void) -{ - int tmp; - asm volatile("cpuid" : "=a" (tmp) : "0" (1) : "ebx","ecx","edx","memory"); -} - -static inline void __monitor(const void *eax, unsigned long ecx, - unsigned long edx) -{ - /* "monitor %eax,%ecx,%edx;" */ - asm volatile( - ".byte 0x0f,0x01,0xc8;" - : :"a" (eax), "c" (ecx), "d"(edx)); -} - -static inline void __mwait(unsigned long eax, unsigned long ecx) -{ - /* "mwait %eax,%ecx;" */ - asm volatile( - ".byte 0x0f,0x01,0xc9;" - : :"a" (eax), "c" (ecx)); -} - -extern void mwait_idle_with_hints(unsigned long eax, unsigned long ecx); - /* from system description table in BIOS. Mostly for MCA use, but others may find it useful. */ extern unsigned int machine_id; @@ -153,20 +123,11 @@ extern unsigned int machine_submodel_id; extern unsigned int BIOS_revision; extern unsigned int mca_pentium_flag; -/* Boot loader type from the setup header */ -extern int bootloader_type; - /* * User space process size: 3GB (default). */ #define TASK_SIZE (PAGE_OFFSET) -/* This decides where the kernel will search for a free chunk of vm - * space during mmap's. - */ -#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3)) - -#define HAVE_ARCH_PICK_MMAP_LAYOUT /* * Size of io_bitmap. @@ -356,25 +317,9 @@ struct thread_struct { regs->sp = new_esp; \ } while (0) -/* Forward declaration, a strange C thing */ -struct task_struct; -struct mm_struct; - -/* Free all resources held by a thread. */ -extern void release_thread(struct task_struct *); - -/* Prepare to copy thread state - unlazy all lazy status */ -extern void prepare_to_copy(struct task_struct *tsk); - -/* - * create a kernel thread without removing it from tasklists - */ -extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); extern unsigned long thread_saved_pc(struct task_struct *tsk); -unsigned long get_wchan(struct task_struct *p); - #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long)) #define KSTK_TOP(info) \ ({ \ @@ -399,53 +344,8 @@ unsigned long get_wchan(struct task_struct *p); __regs__ - 1; \ }) -#define KSTK_EIP(task) (task_pt_regs(task)->ip) #define KSTK_ESP(task) (task_pt_regs(task)->sp) - -struct microcode_header { - unsigned int hdrver; - unsigned int rev; - unsigned int date; - unsigned int sig; - unsigned int cksum; - unsigned int ldrver; - unsigned int pf; - unsigned int datasize; - unsigned int totalsize; - unsigned int reserved[3]; -}; - -struct microcode { - struct microcode_header hdr; - unsigned int bits[0]; -}; - -typedef struct microcode microcode_t; -typedef struct microcode_header microcode_header_t; - -/* microcode format is extended from prescott processors */ -struct extended_signature { - unsigned int sig; - unsigned int pf; - unsigned int cksum; -}; - -struct extended_sigtable { - unsigned int count; - unsigned int cksum; - unsigned int reserved[3]; - struct extended_signature sigs[0]; -}; - -/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ -static inline void rep_nop(void) -{ - __asm__ __volatile__("rep;nop": : :"memory"); -} - -#define cpu_relax() rep_nop() - static inline void native_load_sp0(struct tss_struct *tss, struct thread_struct *thread) { tss->x86_tss.sp0 = thread->sp0; @@ -555,7 +455,6 @@ static inline void load_sp0(struct tss_struct *tss, struct thread_struct *thread because they are microcoded there and very slow. However we don't do prefetches for pre XP Athlons currently That should be fixed. */ -#define ARCH_HAS_PREFETCH static inline void prefetch(const void *x) { alternative_input(ASM_NOP4, @@ -565,8 +464,6 @@ static inline void prefetch(const void *x) } #define ARCH_HAS_PREFETCH -#define ARCH_HAS_PREFETCHW -#define ARCH_HAS_SPINLOCK_PREFETCH /* 3dnow! prefetch to get an exclusive cache line. Useful for spinlocks to avoid one state transition in the cache coherency protocol. */ @@ -577,13 +474,7 @@ static inline void prefetchw(const void *x) X86_FEATURE_3DNOW, "r" (x)); } -#define spin_lock_prefetch(x) prefetchw(x) - -extern void select_idle_routine(const struct cpuinfo_x86 *c); -#define cache_line_size() (boot_cpu_data.x86_cache_alignment) - -extern unsigned long boot_option_idle_override; extern void enable_sep_cpu(void); extern int sysenter_setup(void); @@ -595,6 +486,4 @@ extern void switch_to_new_gdt(void); extern void cpu_init(void); extern void init_gdt(int cpu); -extern int force_mwait; - #endif /* __ASM_I386_PROCESSOR_H */ diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h index 6abe1ba30fe..5f5c7fc6379 100644 --- a/include/asm-x86/processor_64.h +++ b/include/asm-x86/processor_64.h @@ -83,11 +83,6 @@ DECLARE_PER_CPU(struct cpuinfo_x86, cpu_info); extern char ignore_irq13; extern void identify_cpu(struct cpuinfo_x86 *); -extern void print_cpu_info(struct cpuinfo_x86 *); -extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c); -extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c); -extern unsigned short num_cache_leaves; - /* * User space process size. 47bits minus one guard page. @@ -102,8 +97,6 @@ extern unsigned short num_cache_leaves; #define TASK_SIZE (test_thread_flag(TIF_IA32) ? IA32_PAGE_OFFSET : TASK_SIZE64) #define TASK_SIZE_OF(child) ((test_tsk_thread_flag(child, TIF_IA32)) ? IA32_PAGE_OFFSET : TASK_SIZE64) -#define TASK_UNMAPPED_BASE PAGE_ALIGN(TASK_SIZE/3) - /* * Size of io_bitmap. */ @@ -226,68 +219,16 @@ struct thread_struct { set_fs(USER_DS); \ } while(0) -struct task_struct; -struct mm_struct; - -/* Free all resources held by a thread. */ -extern void release_thread(struct task_struct *); - -/* Prepare to copy thread state - unlazy all lazy status */ -extern void prepare_to_copy(struct task_struct *tsk); - -/* - * create a kernel thread without removing it from tasklists - */ -extern long kernel_thread(int (*fn)(void *), void * arg, unsigned long flags); - /* * Return saved PC of a blocked thread. * What is this good for? it will be always the scheduler or ret_from_fork. */ #define thread_saved_pc(t) (*(unsigned long *)((t)->thread.sp - 8)) -extern unsigned long get_wchan(struct task_struct *p); #define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.sp0 - 1) -#define KSTK_EIP(tsk) (task_pt_regs(tsk)->ip) #define KSTK_ESP(tsk) -1 /* sorry. doesn't work for syscall. */ -struct microcode_header { - unsigned int hdrver; - unsigned int rev; - unsigned int date; - unsigned int sig; - unsigned int cksum; - unsigned int ldrver; - unsigned int pf; - unsigned int datasize; - unsigned int totalsize; - unsigned int reserved[3]; -}; - -struct microcode { - struct microcode_header hdr; - unsigned int bits[0]; -}; - -typedef struct microcode microcode_t; -typedef struct microcode_header microcode_header_t; - -/* microcode format is extended from prescott processors */ -struct extended_signature { - unsigned int sig; - unsigned int pf; - unsigned int cksum; -}; - -struct extended_sigtable { - unsigned int count; - unsigned int cksum; - unsigned int reserved[3]; - struct extended_signature sigs[0]; -}; - - #if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2) #define ASM_NOP1 P6_NOP1 #define ASM_NOP2 P6_NOP2 @@ -331,20 +272,6 @@ struct extended_sigtable { #define ASM_NOP_MAX 8 -/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ -static inline void rep_nop(void) -{ - __asm__ __volatile__("rep;nop": : :"memory"); -} - -/* Stop speculative execution */ -static inline void sync_core(void) -{ - int tmp; - asm volatile("cpuid" : "=a" (tmp) : "0" (1) : "ebx","ecx","edx","memory"); -} - -#define ARCH_HAS_PREFETCHW 1 static inline void prefetchw(void *x) { alternative_input("prefetcht0 (%1)", @@ -353,42 +280,6 @@ static inline void prefetchw(void *x) "r" (x)); } -#define ARCH_HAS_SPINLOCK_PREFETCH 1 - -#define spin_lock_prefetch(x) prefetchw(x) - -#define cpu_relax() rep_nop() - -static inline void __monitor(const void *eax, unsigned long ecx, - unsigned long edx) -{ - /* "monitor %eax,%ecx,%edx;" */ - asm volatile( - ".byte 0x0f,0x01,0xc8;" - : :"a" (eax), "c" (ecx), "d"(edx)); -} - -static inline void __mwait(unsigned long eax, unsigned long ecx) -{ - /* "mwait %eax,%ecx;" */ - asm volatile( - ".byte 0x0f,0x01,0xc9;" - : :"a" (eax), "c" (ecx)); -} - -static inline void __sti_mwait(unsigned long eax, unsigned long ecx) -{ - /* "mwait %eax,%ecx;" */ - asm volatile( - "sti; .byte 0x0f,0x01,0xc9;" - : :"a" (eax), "c" (ecx)); -} - -extern void mwait_idle_with_hints(unsigned long eax, unsigned long ecx); - -extern int force_mwait; - -extern void select_idle_routine(const struct cpuinfo_x86 *c); #define stack_current() \ ({ \ @@ -397,12 +288,5 @@ extern void select_idle_routine(const struct cpuinfo_x86 *c); ti->task; \ }) -#define cache_line_size() (boot_cpu_data.x86_cache_alignment) - -extern unsigned long boot_option_idle_override; -/* Boot loader type from the setup header */ -extern int bootloader_type; - -#define HAVE_ARCH_PICK_MMAP_LAYOUT 1 #endif /* __ASM_X86_64_PROCESSOR_H */ -- 2.20.1