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 63eb4446b6ee99443ece518ef700b51b67cb2108..e0bb1a7e4ffae7276279ddf6e3cb9a494ea0ad73 100644 (file)
--- a/osfmk/i386/cpu_data.h
+++ b/osfmk/i386/cpu_data.h
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (c) 2000-2008 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.

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


@@ -43,7 +43,7 @@
 #include <pexpert/pexpert.h>
 #include <mach/i386/thread_status.h>
 #include <mach/i386/vm_param.h>
 #include <pexpert/pexpert.h>
 #include <mach/i386/thread_status.h>
 #include <mach/i386/vm_param.h>

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

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


@@ -51,6 +51,8 @@
 #include <i386/vmx/vmx_cpu.h>
 #endif
 
 #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:
  */


@@ -58,53 +60,25 @@ struct cpu_cons_buffer;
 struct cpu_desc_table;
 struct mca_state;
 
 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 {

-       queue_head_t    queue;
+       mpqueue_head_t          queue;

        uint64_t                deadline;
        uint64_t                deadline;

-       boolean_t               is_set;
+       uint64_t                when_set;

        boolean_t               has_expired;
 } rtclock_timer_t;
 
 
        boolean_t               has_expired;
 } rtclock_timer_t;
 
 

-#if defined(__i386__)
-

 typedef struct {
 typedef struct {

-       struct i386_tss         *cdi_ktss;
-#if    MACH_KDB
-       struct i386_tss         *cdi_dbtss;
-#endif /* MACH_KDB */
-       struct __attribute__((packed)) {
-               uint16_t size;
-               struct fake_descriptor *ptr;
-       } cdi_gdt, cdi_idt;
-       struct fake_descriptor  *cdi_ldt;
-       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_t;
-
-#elif defined(__x86_64__)
-
-
-typedef struct {
-       struct x86_64_tss               *cdi_ktss;
-#if    MACH_KDB
-       struct x86_64_tss               *cdi_dbtss;
-#endif /* MACH_KDB */
+       struct x86_64_tss       *cdi_ktss;

        struct __attribute__((packed)) {
                uint16_t size;
                void *ptr;
        } cdi_gdt, cdi_idt;
        struct fake_descriptor  *cdi_ldt;
        struct __attribute__((packed)) {
                uint16_t size;
                void *ptr;
        } cdi_gdt, cdi_idt;
        struct fake_descriptor  *cdi_ldt;

-       vm_offset_t                             cdi_sstk;
+       vm_offset_t             cdi_sstk;

 } cpu_desc_index_t;
 
 typedef enum {
 } cpu_desc_index_t;
 
 typedef enum {


@@ -112,9 +86,6 @@ typedef enum {
        TASK_MAP_64BIT,                 /* 64-bit user thread, shared space */ 
 } task_map_t;
 
        TASK_MAP_64BIT,                 /* 64-bit user thread, shared space */ 
 } task_map_t;
 

-#else
-#error Unsupported architecture
-#endif

 
 /*
  * This structure is used on entry into the (uber-)kernel on syscall from
 
 /*
  * This structure is used on entry into the (uber-)kernel on syscall from


@@ -125,9 +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.
  *


@@ -143,33 +120,38 @@ 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_prior_signals;      /* Last set of events,
+       volatile int            cpu_signals;            /* IPI events */
+       volatile int            cpu_prior_signals;      /* Last set of events,

                                                         * debugging
                                                         */
                                                         * debugging
                                                         */

-       int                     cpu_mcount_off;         /* mcount recursion */

        ast_t                   cpu_pending_ast;
        ast_t                   cpu_pending_ast;

-       int                     cpu_type;
-       int                     cpu_subtype;
-       int                     cpu_threadtype;
-       int                     cpu_running;
+       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;
+       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;
        volatile addr64_t       cpu_task_cr3;

-       volatile addr64_t       cpu_active_cr3;

        addr64_t                cpu_kernel_cr3;
        cpu_uber_t              cpu_uber;
        void                    *cpu_chud;
        addr64_t                cpu_kernel_cr3;
        cpu_uber_t              cpu_uber;
        void                    *cpu_chud;


@@ -183,56 +165,64 @@ typedef struct cpu_data
        struct fake_descriptor  *cpu_ldtp;
        cpu_desc_index_t        cpu_desc_index;
        int                     cpu_ldt;
        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;
-

 #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;
 #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;

-       void                    *cpu_hi_iss;

 #endif
 
 #endif
 

-
-
-       volatile boolean_t      cpu_tlb_invalid;
-       uint32_t                cpu_hwIntCnt[256];      /* Interrupt counts */
+#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_int_event_time;     /* intr entry/exit time */
        uint64_t                cpu_dr7; /* debug control register */
        uint64_t                cpu_int_event_time;     /* intr entry/exit time */

-#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
-       uint64_t                cpu_uber_arg_store;     /* Double mapped address
-                                                        * of current thread's
-                                                        * uu_arg array.
-                                                        */
-       uint64_t                cpu_uber_arg_store_valid; /* Double mapped
-                                                          * address of pcb
-                                                          * arg store
-                                                          * validity flag.
-                                                          */
-       rtc_nanotime_t          *cpu_nanotime;          /* Nanotime info */
+       pal_rtc_nanotime_t      *cpu_nanotime;          /* Nanotime info */
+#if    CONFIG_COUNTERS

        thread_t                csw_old_thread;
        thread_t                csw_new_thread;
        thread_t                csw_old_thread;
        thread_t                csw_new_thread;

-       uint64_t                cpu_max_observed_int_latency;
-       int                     cpu_max_observed_int_latency_vector;
-       uint64_t                debugger_entry_time;
+#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;
        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
        /* 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


@@ -240,12 +230,60 @@ typedef struct cpu_data
         */
        uint32_t                cpu_nested_istack;
        uint32_t                cpu_nested_istack_events;
         */
        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)
 #endif /* offsetof */
 #ifndef offsetof
 #define offsetof(TYPE,MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
 #endif /* offsetof */


@@ -256,6 +294,27 @@ extern cpu_data_t  cpu_data_master;
                : "i" (offsetof(cpu_data_t,member)));                   \
        return 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


@@ -269,16 +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()
 

-#if defined(__i386__)
-static inline boolean_t
-get_is64bit(void)
-{
-       CPU_DATA_GET(cpu_is64bit, boolean_t)
-}
-#define cpu_mode_is64bit()             get_is64bit()
-#elif defined(__x86_64__)

 #define cpu_mode_is64bit()             TRUE
 #define cpu_mode_is64bit()             TRUE

-#endif

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


@@ -286,11 +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)


@@ -310,9 +355,14 @@ get_cpu_phys_number(void)
 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


@@ -320,6 +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"


@@ -327,6 +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


@@ -334,10 +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


@@ -371,5 +432,6 @@ cpu_datap(int cpu)
 }
 
 extern cpu_data_t *cpu_data_alloc(boolean_t is_boot_cpu);
 }
 
 extern cpu_data_t *cpu_data_alloc(boolean_t is_boot_cpu);

+extern void cpu_data_realloc(void);

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