/*
- * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2012 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @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@
#include <mach_assert.h>
-#if defined(__GNUC__)
-
#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 <mach/i386/vm_param.h>
+#include <i386/rtclock_protos.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:
*/
-struct cpu_core;
struct cpu_cons_buffer;
-struct mp_desc_table;
-
+struct cpu_desc_table;
+struct mca_state;
/*
* 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;
-typedef struct {
- uint64_t rnt_tsc; /* timestamp */
- uint64_t rnt_nanos; /* nanoseconds */
- uint32_t rnt_scale; /* tsc -> nanosec multiplier */
- uint32_t rnt_shift; /* tsc -> nanosec shift/div */
- uint64_t rnt_step_tsc; /* tsc when scale applied */
- uint64_t rnt_step_nanos; /* ns when scale applied */
-} rtc_nanotime_t;
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 {
+ TASK_MAP_32BIT, /* 32-bit user, compatibility mode */
+ TASK_MAP_64BIT, /* 64-bit user thread, shared 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;
+
+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.
*/
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;
- thread_t cpu_active_kloaded;
- vm_offset_t cpu_active_stack;
- vm_offset_t cpu_kernel_stack;
+ 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;
- 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 */
+ volatile int cpu_signals; /* IPI events */
+ volatile int cpu_prior_signals; /* Last set of events,
+ * debugging
+ */
ast_t cpu_pending_ast;
- int cpu_type;
- int cpu_subtype;
- int cpu_threadtype;
- int cpu_running;
- struct cpu_core *cpu_core; /* cpu's parent core */
- uint64_t cpu_rtc_tick_deadline;
- uint64_t cpu_rtc_intr_deadline;
- rtclock_timer_t cpu_rtc_timer;
- rtc_nanotime_t cpu_rtc_nanotime;
+ volatile int cpu_running;
+ boolean_t cpu_fixed_pmcs_enabled;
+ rtclock_timer_t rtclock_timer;
+ 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;
+ struct x86_lcpu lcpu;
struct processor *cpu_processor;
+#if NCOPY_WINDOWS > 0
struct cpu_pmap *cpu_pmap;
- struct mp_desc_table *cpu_desc_tablep;
+#endif
+ struct cpu_desc_table *cpu_desc_tablep;
+ struct fake_descriptor *cpu_ldtp;
cpu_desc_index_t cpu_desc_index;
- boolean_t cpu_iflag;
-#ifdef MACH_KDB
- /* XXX Untested: */
- int cpu_db_pass_thru;
- vm_offset_t cpu_db_stacks;
- struct i386_saved_state *cpu_kdb_saved_state;
- spl_t cpu_kdb_saved_ipl;
- int cpu_kdb_is_slave;
- int cpu_kdb_active;
-#endif /* MACH_KDB */
- int cpu_hibernate;
+ int cpu_ldt;
+#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_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[];
-extern cpu_data_t cpu_data_master;
/* 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 */
#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;
+#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
#define current_thread_fast() get_active_thread()
#define current_thread() current_thread_fast()
+#define cpu_mode_is64bit() TRUE
+
static inline int
get_preemption_level(void)
{
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)
{
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)
{
+#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)));
+#endif
}
static inline void
{
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"
: /* no outputs */
: "i" (offsetof(cpu_data_t, cpu_preemption_level))
: "eax", "ecx", "edx", "cc", "memory");
+#endif
}
static inline void
{
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");
+#endif
}
static inline void
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);
-
-#else /* !defined(__GNUC__) */
-
-#endif /* defined(__GNUC__) */
+extern void cpu_data_realloc(void);
#endif /* I386_CPU_DATA */
projects / apple / xnu.git / blobdiff