xnu-2422.100.13.tar.gz

[apple/xnu.git] / osfmk / i386 / cpu_data.h

diff --git a/osfmk/i386/cpu_data.h b/osfmk/i386/cpu_data.h
index 3e4362e7690ade75b221f214aca21be4788327e6..e0bb1a7e4ffae7276279ddf6e3cb9a494ea0ad73 100644 (file)
--- a/osfmk/i386/cpu_data.h
+++ b/osfmk/i386/cpu_data.h
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 


@@ -35,58 +35,58 @@
 
 #include <mach_assert.h>
 
 
 #include <mach_assert.h>
 

-#if    defined(__GNUC__)
-

 #include <kern/assert.h>
 #include <kern/kern_types.h>
 #include <kern/assert.h>
 #include <kern/kern_types.h>

+#include <kern/queue.h>

 #include <kern/processor.h>
 #include <kern/pms.h>
 #include <pexpert/pexpert.h>
 #include <mach/i386/thread_status.h>
 #include <kern/processor.h>
 #include <kern/pms.h>
 #include <pexpert/pexpert.h>
 #include <mach/i386/thread_status.h>

-#include <i386/rtclock.h>
+#include <mach/i386/vm_param.h>
+#include <i386/rtclock_protos.h>

 #include <i386/pmCPU.h>
 #include <i386/pmCPU.h>

+#include <i386/cpu_topology.h>
+
+#if CONFIG_VMX
+#include <i386/vmx/vmx_cpu.h>
+#endif
+
+#include <machine/pal_routines.h>

 
 /*
  * Data structures referenced (anonymously) from per-cpu data:
  */
 
 /*
  * Data structures referenced (anonymously) from per-cpu data:
  */

-struct cpu_core;

 struct cpu_cons_buffer;
 struct cpu_desc_table;
 struct cpu_cons_buffer;
 struct cpu_desc_table;

-
+struct mca_state;

 
 /*
  * Data structures embedded in per-cpu data:
  */
 typedef struct rtclock_timer {
 
 /*
  * Data structures embedded in per-cpu data:
  */
 typedef struct rtclock_timer {

-       uint64_t        deadline;
-       boolean_t       is_set;
-       boolean_t       has_expired;
+       mpqueue_head_t          queue;
+       uint64_t                deadline;
+       uint64_t                when_set;
+       boolean_t               has_expired;

 } rtclock_timer_t;
 
 } rtclock_timer_t;
 

-typedef struct {
-       uint64_t        tsc_base;               /* timestamp */
-       uint64_t        ns_base;                /* nanoseconds */
-       uint32_t        scale;                  /* tsc -> nanosec multiplier */
-       uint32_t        shift;                  /* tsc -> nanosec shift/div */
-} rtc_nanotime_t;

 
 typedef struct {
 
 typedef struct {

-       struct i386_tss         *cdi_ktss;
-#if    MACH_KDB
-       struct i386_tss         *cdi_dbtss;
-#endif /* MACH_KDB */
-       struct fake_descriptor  *cdi_gdt;
-       struct fake_descriptor  *cdi_idt;
-       struct fake_descriptor  *cdi_ldt;
+       struct x86_64_tss       *cdi_ktss;
+       struct __attribute__((packed)) {
+               uint16_t size;
+               void *ptr;
+       } cdi_gdt, cdi_idt;
+       struct fake_descriptor  *cdi_ldt;

        vm_offset_t             cdi_sstk;
 } cpu_desc_index_t;
 
 typedef enum {
        vm_offset_t             cdi_sstk;
 } cpu_desc_index_t;
 
 typedef enum {

-       TASK_MAP_32BIT,                 /* 32-bit, compatibility mode */ 
-       TASK_MAP_64BIT,                 /* 64-bit, separate address space */ 
-       TASK_MAP_64BIT_SHARED           /* 64-bit, kernel-shared addr space */
+       TASK_MAP_32BIT,                 /* 32-bit user, compatibility mode */ 
+       TASK_MAP_64BIT,                 /* 64-bit user thread, shared space */ 

 } task_map_t;
 
 } task_map_t;
 

+

 /*
  * This structure is used on entry into the (uber-)kernel on syscall from
  * a 64-bit user. It contains the address of the machine state save area
 /*
  * This structure is used on entry into the (uber-)kernel on syscall from
  * a 64-bit user. It contains the address of the machine state save area


@@ -96,9 +96,15 @@ typedef enum {
 typedef struct {
        addr64_t        cu_isf;         /* thread->pcb->iss.isf */
        uint64_t        cu_tmp;         /* temporary scratch */ 
 typedef struct {
        addr64_t        cu_isf;         /* thread->pcb->iss.isf */
        uint64_t        cu_tmp;         /* temporary scratch */ 

-        addr64_t       cu_user_gs_base;
+       addr64_t        cu_user_gs_base;

 } cpu_uber_t;
 
 } cpu_uber_t;
 

+typedef        uint16_t        pcid_t;
+typedef        uint8_t         pcid_ref_t;
+
+#define CPU_RTIME_BINS (12)
+#define CPU_ITIME_BINS (CPU_RTIME_BINS)
+

 /*
  * Per-cpu data.
  *
 /*
  * Per-cpu data.
  *


@@ -114,86 +120,201 @@ typedef struct {
  */
 typedef struct cpu_data
 {
  */
 typedef struct cpu_data
 {

+       struct pal_cpu_data     cpu_pal_data;           /* PAL-specific data */
+#define                                cpu_pd cpu_pal_data     /* convenience alias */

        struct cpu_data         *cpu_this;              /* pointer to myself */
        thread_t                cpu_active_thread;
        struct cpu_data         *cpu_this;              /* pointer to myself */
        thread_t                cpu_active_thread;

+       thread_t                cpu_nthread;
+       volatile int            cpu_preemption_level;
+       int                     cpu_number;             /* Logical CPU */

        void                    *cpu_int_state;         /* interrupt state */
        vm_offset_t             cpu_active_stack;       /* kernel stack base */
        vm_offset_t             cpu_kernel_stack;       /* kernel stack top */
        vm_offset_t             cpu_int_stack_top;
        void                    *cpu_int_state;         /* interrupt state */
        vm_offset_t             cpu_active_stack;       /* kernel stack base */
        vm_offset_t             cpu_kernel_stack;       /* kernel stack top */
        vm_offset_t             cpu_int_stack_top;

-       int                     cpu_preemption_level;
-       int                     cpu_simple_lock_count;

        int                     cpu_interrupt_level;
        int                     cpu_interrupt_level;

-       int                     cpu_number;             /* Logical CPU */

        int                     cpu_phys_number;        /* Physical CPU */
        cpu_id_t                cpu_id;                 /* Platform Expert */
        int                     cpu_phys_number;        /* Physical CPU */
        cpu_id_t                cpu_id;                 /* Platform Expert */

-       int                     cpu_signals;            /* IPI events */
-       int                     cpu_mcount_off;         /* mcount recursion */
+       volatile int            cpu_signals;            /* IPI events */
+       volatile int            cpu_prior_signals;      /* Last set of events,
+                                                        * debugging
+                                                        */

        ast_t                   cpu_pending_ast;
        ast_t                   cpu_pending_ast;

-       int                     cpu_type;
-       int                     cpu_subtype;
-       int                     cpu_threadtype;
-       int                     cpu_running;
-       uint64_t                rtclock_intr_deadline;
+       volatile int            cpu_running;
+       boolean_t               cpu_fixed_pmcs_enabled;

        rtclock_timer_t         rtclock_timer;
        rtclock_timer_t         rtclock_timer;

-        boolean_t              cpu_is64bit;
-        task_map_t             cpu_task_map;
-        addr64_t               cpu_task_cr3;
-        addr64_t               cpu_active_cr3;
-        addr64_t               cpu_kernel_cr3;
+       volatile addr64_t       cpu_active_cr3 __attribute((aligned(64)));
+       union {
+               volatile uint32_t cpu_tlb_invalid;
+               struct {
+                       volatile uint16_t cpu_tlb_invalid_local;
+                       volatile uint16_t cpu_tlb_invalid_global;
+               };
+       };
+       volatile task_map_t     cpu_task_map;
+       volatile addr64_t       cpu_task_cr3;
+       addr64_t                cpu_kernel_cr3;

        cpu_uber_t              cpu_uber;
        void                    *cpu_chud;
        void                    *cpu_console_buf;
        cpu_uber_t              cpu_uber;
        void                    *cpu_chud;
        void                    *cpu_console_buf;

-       struct cpu_core         *cpu_core;              /* cpu's parent core */
+       struct x86_lcpu         lcpu;

        struct processor        *cpu_processor;
        struct processor        *cpu_processor;

+#if NCOPY_WINDOWS > 0

        struct cpu_pmap         *cpu_pmap;
        struct cpu_pmap         *cpu_pmap;

+#endif

        struct cpu_desc_table   *cpu_desc_tablep;
        struct fake_descriptor  *cpu_ldtp;
        cpu_desc_index_t        cpu_desc_index;
        int                     cpu_ldt;
        struct cpu_desc_table   *cpu_desc_tablep;
        struct fake_descriptor  *cpu_ldtp;
        cpu_desc_index_t        cpu_desc_index;
        int                     cpu_ldt;

-#ifdef MACH_KDB
-       /* XXX Untested: */
-       int                     cpu_db_pass_thru;
-       vm_offset_t     cpu_db_stacks;
-       void            *cpu_kdb_saved_state;
-       spl_t           cpu_kdb_saved_ipl;
-       int                     cpu_kdb_is_slave;
-       int                     cpu_kdb_active;
-#endif /* MACH_KDB */
-       boolean_t               cpu_iflag;
-       boolean_t               cpu_boot_complete;
-       int                     cpu_hibernate;
-       pmsd                    pms;                                    /* Power Management Stepper control */
-       uint64_t                rtcPop;                 /* when the etimer wants a timer pop */
-       
-       vm_offset_t     cpu_copywindow_base;
-       uint64_t        *cpu_copywindow_pdp;
-       
-       vm_offset_t     cpu_physwindow_base;
-       uint64_t        *cpu_physwindow_ptep;
-       void            *cpu_hi_iss;
-       boolean_t       cpu_tlb_invalid;
-       
-       uint64_t        *cpu_pmHpet;            /* Address of the HPET for this processor */
-       uint32_t        cpu_pmHpetVec;          /* Interrupt vector for HPET for this processor */
-/*     Statistics */
-       pmStats_t       cpu_pmStats;            /* Power management data */
-       uint32_t        cpu_hwIntCnt[256];              /* Interrupt counts */
-       
+#if NCOPY_WINDOWS > 0
+       vm_offset_t             cpu_copywindow_base;
+       uint64_t                *cpu_copywindow_pdp;
+
+       vm_offset_t             cpu_physwindow_base;
+       uint64_t                *cpu_physwindow_ptep;
+#endif
+
+#define HWINTCNT_SIZE 256
+       uint32_t                cpu_hwIntCnt[HWINTCNT_SIZE];    /* Interrupt counts */
+       uint64_t                cpu_hwIntpexits[HWINTCNT_SIZE];
+       uint64_t                cpu_hwIntcexits[HWINTCNT_SIZE];

        uint64_t                cpu_dr7; /* debug control register */
        uint64_t                cpu_dr7; /* debug control register */

+       uint64_t                cpu_int_event_time;     /* intr entry/exit time */
+       pal_rtc_nanotime_t      *cpu_nanotime;          /* Nanotime info */
+#if    CONFIG_COUNTERS
+       thread_t                csw_old_thread;
+       thread_t                csw_new_thread;
+#endif /* CONFIG COUNTERS */   
+#if KPC
+       /* double-buffered performance counter data */
+       uint64_t                *cpu_kpc_buf[2];
+       /* PMC shadow and reload value buffers */
+       uint64_t                *cpu_kpc_shadow;
+       uint64_t                *cpu_kpc_reload;
+#endif
+       uint32_t                cpu_pmap_pcid_enabled;
+       pcid_t                  cpu_active_pcid;
+       pcid_t                  cpu_last_pcid;
+       volatile pcid_ref_t     *cpu_pmap_pcid_coherentp;
+       volatile pcid_ref_t     *cpu_pmap_pcid_coherentp_kernel;
+#define        PMAP_PCID_MAX_PCID      (0x1000)
+       pcid_t                  cpu_pcid_free_hint;
+       pcid_ref_t              cpu_pcid_refcounts[PMAP_PCID_MAX_PCID];
+       pmap_t                  cpu_pcid_last_pmap_dispatched[PMAP_PCID_MAX_PCID];
+#ifdef PCID_STATS
+       uint64_t                cpu_pmap_pcid_flushes;
+       uint64_t                cpu_pmap_pcid_preserves;
+#endif
+       uint64_t                cpu_aperf;
+       uint64_t                cpu_mperf;
+       uint64_t                cpu_c3res;
+       uint64_t                cpu_c6res;
+       uint64_t                cpu_c7res;
+       uint64_t                cpu_itime_total;
+       uint64_t                cpu_rtime_total;
+       uint64_t                cpu_ixtime;
+       uint64_t                cpu_idle_exits;
+       uint64_t                cpu_rtimes[CPU_RTIME_BINS];
+       uint64_t                cpu_itimes[CPU_ITIME_BINS];
+       uint64_t                cpu_cur_insns;
+       uint64_t                cpu_cur_ucc;
+       uint64_t                cpu_cur_urc;
+       uint64_t                cpu_max_observed_int_latency;
+       int                     cpu_max_observed_int_latency_vector;
+       volatile boolean_t      cpu_NMI_acknowledged;
+       uint64_t                debugger_entry_time;
+       uint64_t                debugger_ipi_time;
+       /* A separate nested interrupt stack flag, to account
+        * for non-nested interrupts arriving while on the interrupt stack
+        * Currently only occurs when AICPM enables interrupts on the
+        * interrupt stack during processor offlining.
+        */
+       uint32_t                cpu_nested_istack;
+       uint32_t                cpu_nested_istack_events;
+       x86_saved_state64_t     *cpu_fatal_trap_state;
+       x86_saved_state64_t     *cpu_post_fatal_trap_state;
+#if CONFIG_VMX
+       vmx_cpu_t               cpu_vmx;                /* wonderful world of virtualization */
+#endif
+#if CONFIG_MCA
+       struct mca_state        *cpu_mca_state;         /* State at MC fault */
+#endif
+       int                     cpu_type;
+       int                     cpu_subtype;
+       int                     cpu_threadtype;
+       boolean_t               cpu_iflag;
+       boolean_t               cpu_boot_complete;
+       int                     cpu_hibernate;

 } cpu_data_t;
 
 extern cpu_data_t      *cpu_data_ptr[];  
 } cpu_data_t;
 
 extern cpu_data_t      *cpu_data_ptr[];  

-extern cpu_data_t      cpu_data_master;  

 
 /* Macro to generate inline bodies to retrieve per-cpu data fields. */
 
 /* Macro to generate inline bodies to retrieve per-cpu data fields. */

+#if defined(__clang__)
+#define GS_RELATIVE volatile __attribute__((address_space(256)))
+#ifndef offsetof
+#define offsetof(TYPE,MEMBER) __builtin_offsetof(TYPE,MEMBER)
+#endif
+
+#define CPU_DATA_GET(member,type)                                                                              \
+       cpu_data_t GS_RELATIVE *cpu_data =                                                      \
+               (cpu_data_t GS_RELATIVE *)0UL;                                                                  \
+       type ret;                                                                                                                       \
+       ret = cpu_data->member;                                                                                         \
+       return ret;
+
+#define CPU_DATA_GET_INDEX(member,index,type)                                                  \
+       cpu_data_t GS_RELATIVE *cpu_data =                                                      \
+               (cpu_data_t GS_RELATIVE *)0UL;                                                                  \
+       type ret;                                                                                                                       \
+       ret = cpu_data->member[index];                                                                          \
+       return ret;
+
+#define CPU_DATA_SET(member,value)                                                                             \
+       cpu_data_t GS_RELATIVE *cpu_data =                                                      \
+               (cpu_data_t GS_RELATIVE *)0UL;                                                                  \
+       cpu_data->member = value;
+
+#define CPU_DATA_XCHG(member,value,type)                                                               \
+       cpu_data_t GS_RELATIVE *cpu_data =                                                      \
+               (cpu_data_t GS_RELATIVE *)0UL;                                                                  \
+       type ret;                                                                                                                       \
+       ret = cpu_data->member;                                                                                         \
+       cpu_data->member = value;                                                                                       \
+       return ret;
+
+#else /* !defined(__clang__) */
+
+#ifndef offsetof

 #define offsetof(TYPE,MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
 #define offsetof(TYPE,MEMBER) ((size_t) &((TYPE *)0)->MEMBER)

+#endif /* offsetof */

 #define CPU_DATA_GET(member,type)                                      \
        type ret;                                                       \
 #define CPU_DATA_GET(member,type)                                      \
        type ret;                                                       \

-       __asm__ volatile ("movl %%gs:%P1,%0"                            \
+       __asm__ volatile ("mov %%gs:%P1,%0"                             \

                : "=r" (ret)                                            \
                : "i" (offsetof(cpu_data_t,member)));                   \
        return ret;
 
                : "=r" (ret)                                            \
                : "i" (offsetof(cpu_data_t,member)));                   \
        return ret;
 

+#define CPU_DATA_GET_INDEX(member,index,type)  \
+       type ret;                                                       \
+       __asm__ volatile ("mov %%gs:(%1),%0"                            \
+               : "=r" (ret)                                            \
+               : "r" (offsetof(cpu_data_t,member[index])));                    \
+       return ret;
+
+#define CPU_DATA_SET(member,value)                                     \
+       __asm__ volatile ("mov %0,%%gs:%P1"                             \
+               :                                                       \
+               : "r" (value), "i" (offsetof(cpu_data_t,member)));
+
+#define CPU_DATA_XCHG(member,value,type)                               \
+       type ret;                                                       \
+       __asm__ volatile ("xchg %0,%%gs:%P1"                            \
+               : "=r" (ret)                                            \
+               : "i" (offsetof(cpu_data_t,member)), "0" (value));      \
+       return ret;
+
+#endif /* !defined(__clang__) */
+

 /*
  * Everyone within the osfmk part of the kernel can use the fast
  * inline versions of these routines.  Everyone outside, must call
 /*
  * Everyone within the osfmk part of the kernel can use the fast
  * inline versions of these routines.  Everyone outside, must call


@@ -207,12 +328,7 @@ get_active_thread(void)
 #define current_thread_fast()          get_active_thread()
 #define current_thread()               current_thread_fast()
 
 #define current_thread_fast()          get_active_thread()
 #define current_thread()               current_thread_fast()
 

-static inline boolean_t
-get_is64bit(void)
-{
-       CPU_DATA_GET(cpu_is64bit, boolean_t)
-}
-#define cpu_mode_is64bit()             get_is64bit()
+#define cpu_mode_is64bit()             TRUE

 
 static inline int
 get_preemption_level(void)
 
 static inline int
 get_preemption_level(void)


@@ -220,11 +336,6 @@ get_preemption_level(void)
        CPU_DATA_GET(cpu_preemption_level,int)
 }
 static inline int
        CPU_DATA_GET(cpu_preemption_level,int)
 }
 static inline int

-get_simple_lock_count(void)
-{
-       CPU_DATA_GET(cpu_simple_lock_count,int)
-}
-static inline int

 get_interrupt_level(void)
 {
        CPU_DATA_GET(cpu_interrupt_level,int)
 get_interrupt_level(void)
 {
        CPU_DATA_GET(cpu_interrupt_level,int)


@@ -239,18 +350,19 @@ get_cpu_phys_number(void)
 {
        CPU_DATA_GET(cpu_phys_number,int)
 }
 {
        CPU_DATA_GET(cpu_phys_number,int)
 }

-static inline struct
-cpu_core * get_cpu_core(void)
-{
-       CPU_DATA_GET(cpu_core,struct cpu_core *)
-}
+

 
 static inline void
 disable_preemption(void)
 {
 
 static inline void
 disable_preemption(void)
 {

+#if defined(__clang__)
+       cpu_data_t GS_RELATIVE *cpu_data = (cpu_data_t GS_RELATIVE *)0UL;
+       cpu_data->cpu_preemption_level++;
+#else

        __asm__ volatile ("incl %%gs:%P0"
                        :
                        : "i" (offsetof(cpu_data_t, cpu_preemption_level)));
        __asm__ volatile ("incl %%gs:%P0"
                        :
                        : "i" (offsetof(cpu_data_t, cpu_preemption_level)));

+#endif

 }
 
 static inline void
 }
 
 static inline void


@@ -258,6 +370,11 @@ enable_preemption(void)
 {
        assert(get_preemption_level() > 0);
 
 {
        assert(get_preemption_level() > 0);
 

+#if defined(__clang__)
+       cpu_data_t GS_RELATIVE *cpu_data = (cpu_data_t GS_RELATIVE *)0UL;
+       if (0 == --cpu_data->cpu_preemption_level)
+               kernel_preempt_check();
+#else

        __asm__ volatile ("decl %%gs:%P0                \n\t"
                          "jne 1f                       \n\t"
                          "call _kernel_preempt_check   \n\t"
        __asm__ volatile ("decl %%gs:%P0                \n\t"
                          "jne 1f                       \n\t"
                          "call _kernel_preempt_check   \n\t"


@@ -265,6 +382,7 @@ enable_preemption(void)
                        : /* no outputs */
                        : "i" (offsetof(cpu_data_t, cpu_preemption_level))
                        : "eax", "ecx", "edx", "cc", "memory");
                        : /* no outputs */
                        : "i" (offsetof(cpu_data_t, cpu_preemption_level))
                        : "eax", "ecx", "edx", "cc", "memory");

+#endif

 }
 
 static inline void
 }
 
 static inline void


@@ -272,10 +390,15 @@ enable_preemption_no_check(void)
 {
        assert(get_preemption_level() > 0);
 
 {
        assert(get_preemption_level() > 0);
 

+#if defined(__clang__)
+       cpu_data_t GS_RELATIVE *cpu_data = (cpu_data_t GS_RELATIVE *)0UL;
+       cpu_data->cpu_preemption_level--;
+#else

        __asm__ volatile ("decl %%gs:%P0"
                        : /* no outputs */
                        : "i" (offsetof(cpu_data_t, cpu_preemption_level))
                        : "cc", "memory");
        __asm__ volatile ("decl %%gs:%P0"
                        : /* no outputs */
                        : "i" (offsetof(cpu_data_t, cpu_preemption_level))
                        : "cc", "memory");

+#endif

 }
 
 static inline void
 }
 
 static inline void


@@ -305,14 +428,10 @@ current_cpu_datap(void)
 static inline cpu_data_t *
 cpu_datap(int cpu)
 {
 static inline cpu_data_t *
 cpu_datap(int cpu)
 {

-       assert(cpu_data_ptr[cpu]);

        return cpu_data_ptr[cpu];
 }
 
 extern cpu_data_t *cpu_data_alloc(boolean_t is_boot_cpu);
        return cpu_data_ptr[cpu];
 }
 
 extern cpu_data_t *cpu_data_alloc(boolean_t is_boot_cpu);

-
-#else  /* !defined(__GNUC__) */
-
-#endif /* defined(__GNUC__) */
+extern void cpu_data_realloc(void);

 
 #endif /* I386_CPU_DATA */
 
 #endif /* I386_CPU_DATA */