/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
#ifndef I386_CPU_DATA
#define I386_CPU_DATA
-#include <cpus.h>
#include <mach_assert.h>
#if defined(__GNUC__)
#include <kern/assert.h>
#include <kern/kern_types.h>
+#include <kern/processor.h>
+#include <kern/pms.h>
+#include <pexpert/pexpert.h>
+#include <mach/i386/thread_status.h>
+#include <i386/rtclock.h>
+#include <i386/pmCPU.h>
+#include <i386/cpu_topology.h>
+
+#include <i386/vmx/vmx_cpu.h>
+
+/*
+ * Data structures referenced (anonymously) from per-cpu data:
+ */
+struct cpu_cons_buffer;
+struct cpu_desc_table;
+struct mca_state;
-#if 0
-#ifndef __OPTIMIZE__
-#define extern static
-#endif
-#endif
-extern cpu_data_t cpu_data[NCPUS];
+/*
+ * Data structures embedded in per-cpu data:
+ */
+typedef struct rtclock_timer {
+ uint64_t deadline;
+ boolean_t is_set;
+ boolean_t has_expired;
+} rtclock_timer_t;
+
+typedef struct rtc_nanotime {
+ uint64_t tsc_base; /* timestamp */
+ uint64_t ns_base; /* nanoseconds */
+ uint32_t scale; /* tsc -> nanosec multiplier */
+ uint32_t shift; /* tsc -> nanosec shift/div */
+ /* shift is overloaded with
+ * lower 32bits of tsc_freq
+ * on slower machines (SLOW_TSC_THRESHOLD) */
+ uint32_t generation; /* 0 == being updated */
+ uint32_t spare1;
+} rtc_nanotime_t;
+
+#define SLOW_TSC_THRESHOLD 1000067800 /* TSC is too slow for regular nanotime() algorithm */
+
+
+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;
+ 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;
+
+/*
+ * 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
+ * for the current thread and a temporary place to save the user's rsp
+ * before loading this address into rsp.
+ */
+typedef struct {
+ addr64_t cu_isf; /* thread->pcb->iss.isf */
+ uint64_t cu_tmp; /* temporary scratch */
+ addr64_t cu_user_gs_base;
+} cpu_uber_t;
-#define get_cpu_data() &cpu_data[cpu_number()]
+/*
+ * Per-cpu data.
+ *
+ * Each processor has a per-cpu data area which is dereferenced through the
+ * current_cpu_datap() macro. For speed, the %gs segment is based here, and
+ * using this, inlines provides single-instruction access to frequently used
+ * members - such as get_cpu_number()/cpu_number(), and get_active_thread()/
+ * current_thread().
+ *
+ * Cpu data owned by another processor can be accessed using the
+ * cpu_datap(cpu_number) macro which uses the cpu_data_ptr[] array of per-cpu
+ * pointers.
+ */
+typedef struct cpu_data
+{
+ struct cpu_data *cpu_this; /* pointer to myself */
+ thread_t cpu_active_thread;
+ 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_number; /* Logical CPU */
+ int cpu_phys_number; /* Physical CPU */
+ cpu_id_t cpu_id; /* Platform Expert */
+ int cpu_signals; /* IPI events */
+ int cpu_mcount_off; /* mcount recursion */
+ ast_t cpu_pending_ast;
+ int cpu_type;
+ int cpu_subtype;
+ int cpu_threadtype;
+ int cpu_running;
+ uint64_t rtclock_intr_deadline;
+ 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;
+ cpu_uber_t cpu_uber;
+ void *cpu_chud;
+ void *cpu_console_buf;
+ struct x86_lcpu lcpu;
+ struct processor *cpu_processor;
+ struct cpu_pmap *cpu_pmap;
+ 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;
+
+ 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;
+ uint32_t cpu_hwIntCnt[256]; /* Interrupt counts */
+ uint64_t cpu_dr7; /* debug control register */
+ uint64_t cpu_int_event_time; /* intr entry/exit time */
+ vmx_cpu_t cpu_vmx; /* wonderful world of virtualization */
+ struct mca_state *cpu_mca_state; /* State at MC fault */
+ 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.
+ */
+
+
+} 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. */
+#ifndef offsetof
+#define offsetof(TYPE,MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+#endif /* offsetof */
+#define CPU_DATA_GET(member,type) \
+ type ret; \
+ __asm__ volatile ("movl %%gs:%P1,%0" \
+ : "=r" (ret) \
+ : "i" (offsetof(cpu_data_t,member))); \
+ return ret;
/*
* Everyone within the osfmk part of the kernel can use the fast
* inline versions of these routines. Everyone outside, must call
* the real thing,
*/
-extern thread_t __inline__ current_thread_fast(void);
-extern thread_t __inline__ current_thread_fast(void)
+static inline thread_t
+get_active_thread(void)
{
- register thread_t ct;
- register int idx = (int)&((cpu_data_t *)0)->active_thread;
-
- __asm__ volatile (" movl %%gs:(%1),%0" : "=r" (ct) : "r" (idx));
-
- return (ct);
+ CPU_DATA_GET(cpu_active_thread,thread_t)
}
+#define current_thread_fast() get_active_thread()
+#define current_thread() current_thread_fast()
-#define current_thread() current_thread_fast()
-
-extern int __inline__ get_preemption_level(void);
-extern void __inline__ disable_preemption(void);
-extern void __inline__ enable_preemption(void);
-extern void __inline__ enable_preemption_no_check(void);
-extern void __inline__ mp_disable_preemption(void);
-extern void __inline__ mp_enable_preemption(void);
-extern void __inline__ mp_enable_preemption_no_check(void);
-extern int __inline__ get_simple_lock_count(void);
-extern int __inline__ get_interrupt_level(void);
-
-extern int __inline__ get_preemption_level(void)
+static inline boolean_t
+get_is64bit(void)
{
- register int idx = (int)&((cpu_data_t *)0)->preemption_level;
- register int pl;
-
- __asm__ volatile (" movl %%gs:(%1),%0" : "=r" (pl) : "r" (idx));
-
- return (pl);
+ CPU_DATA_GET(cpu_is64bit, boolean_t)
}
+#define cpu_mode_is64bit() get_is64bit()
-extern void __inline__ disable_preemption(void)
+static inline int
+get_preemption_level(void)
{
-#if MACH_ASSERT
- extern void _disable_preemption(void);
-
- _disable_preemption();
-#else /* MACH_ASSERT */
- register int idx = (int)&((cpu_data_t *)0)->preemption_level;
-
- __asm__ volatile (" incl %%gs:(%0)" : : "r" (idx));
-#endif /* MACH_ASSERT */
+ 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)
+}
+static inline int
+get_cpu_number(void)
+{
+ CPU_DATA_GET(cpu_number,int)
+}
+static inline int
+get_cpu_phys_number(void)
+{
+ CPU_DATA_GET(cpu_phys_number,int)
}
-extern void __inline__ enable_preemption(void)
+static inline void
+disable_preemption(void)
{
-#if MACH_ASSERT
- extern void _enable_preemption(void);
+ __asm__ volatile ("incl %%gs:%P0"
+ :
+ : "i" (offsetof(cpu_data_t, cpu_preemption_level)));
+}
+static inline void
+enable_preemption(void)
+{
assert(get_preemption_level() > 0);
- _enable_preemption();
-#else /* MACH_ASSERT */
- extern void kernel_preempt_check (void);
- register int idx = (int)&((cpu_data_t *)0)->preemption_level;
- register void (*kpc)(void)= kernel_preempt_check;
-
- __asm__ volatile ("decl %%gs:(%0); jne 1f; \
- call %1; 1:"
+
+ __asm__ volatile ("decl %%gs:%P0 \n\t"
+ "jne 1f \n\t"
+ "call _kernel_preempt_check \n\t"
+ "1:"
: /* no outputs */
- : "r" (idx), "r" (kpc)
- : "%eax", "%ecx", "%edx", "cc", "memory");
-#endif /* MACH_ASSERT */
+ : "i" (offsetof(cpu_data_t, cpu_preemption_level))
+ : "eax", "ecx", "edx", "cc", "memory");
}
-extern void __inline__ enable_preemption_no_check(void)
+static inline void
+enable_preemption_no_check(void)
{
-#if MACH_ASSERT
- extern void _enable_preemption_no_check(void);
-
assert(get_preemption_level() > 0);
- _enable_preemption_no_check();
-#else /* MACH_ASSERT */
- register int idx = (int)&((cpu_data_t *)0)->preemption_level;
- __asm__ volatile ("decl %%gs:(%0)"
+ __asm__ volatile ("decl %%gs:%P0"
: /* no outputs */
- : "r" (idx)
+ : "i" (offsetof(cpu_data_t, cpu_preemption_level))
: "cc", "memory");
-#endif /* MACH_ASSERT */
}
-extern void __inline__ mp_disable_preemption(void)
+static inline void
+mp_disable_preemption(void)
{
-#if NCPUS > 1
disable_preemption();
-#endif /* NCPUS > 1 */
}
-extern void __inline__ mp_enable_preemption(void)
+static inline void
+mp_enable_preemption(void)
{
-#if NCPUS > 1
enable_preemption();
-#endif /* NCPUS > 1 */
}
-extern void __inline__ mp_enable_preemption_no_check(void)
+static inline void
+mp_enable_preemption_no_check(void)
{
-#if NCPUS > 1
enable_preemption_no_check();
-#endif /* NCPUS > 1 */
}
-extern int __inline__ get_simple_lock_count(void)
+static inline cpu_data_t *
+current_cpu_datap(void)
{
- register int idx = (int)&((cpu_data_t *)0)->simple_lock_count;
- register int pl;
-
- __asm__ volatile (" movl %%gs:(%1),%0" : "=r" (pl) : "r" (idx));
-
- return (pl);
+ CPU_DATA_GET(cpu_this, cpu_data_t *);
}
-extern int __inline__ get_interrupt_level(void)
+static inline cpu_data_t *
+cpu_datap(int cpu)
{
- register int idx = (int)&((cpu_data_t *)0)->interrupt_level;
- register int pl;
-
- __asm__ volatile (" movl %%gs:(%1),%0" : "=r" (pl) : "r" (idx));
-
- return (pl);
+ assert(cpu_data_ptr[cpu]);
+ return cpu_data_ptr[cpu];
}
-#if 0
-#ifndef __OPTIMIZE__
-#undef extern
-#endif
-#endif
+extern cpu_data_t *cpu_data_alloc(boolean_t is_boot_cpu);
#else /* !defined(__GNUC__) */
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