sanchayanmaity/minix
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity
minix/kernel/arch/i386/include/arch_proto.h
Tomas Hruby 62c666566e SMP - We boot APs 
- kernel detects CPUs by searching ACPI tables for local apic nodes

- each CPU has its own TSS that points to its own stack. All cpus boot
  on the same boot stack (in sequence) but switch to its private stack
  as soon as they can.

- final booting code in main() placed in bsp_finish_booting() which is
  executed only after the BSP switches to its final stack

- apic functions to send startup interrupts

- assembler functions to handle CPU features not needed for single cpu
  mode like memory barries, HT detection etc.

- new files kernel/smp.[ch], kernel/arch/i386/arch_smp.c and
  kernel/arch/i386/include/arch_smp.h

- 16-bit trampoline code for the APs. It is executed by each AP after
  receiving startup IPIs it brings up the CPUs to 32bit mode and let
  them spin in an infinite loop so they don't do any damage.

- implementation of kernel spinlock

- CONFIG_SMP and CONFIG_MAX_CPUS set by the build system
2010-09-15 14:09:52 +00:00

225 lines
7.9 KiB
C
Raw Blame History

#ifndef _I386_PROTO_H
#define _I386_PROTO_H
#include <machine/vm.h>
#define K_STACK_SIZE I386_PAGE_SIZE
#ifndef __ASSEMBLY__
/* Hardware interrupt handlers. */
_PROTOTYPE( void hwint00, (void) );
_PROTOTYPE( void hwint01, (void) );
_PROTOTYPE( void hwint02, (void) );
_PROTOTYPE( void hwint03, (void) );
_PROTOTYPE( void hwint04, (void) );
_PROTOTYPE( void hwint05, (void) );
_PROTOTYPE( void hwint06, (void) );
_PROTOTYPE( void hwint07, (void) );
_PROTOTYPE( void hwint08, (void) );
_PROTOTYPE( void hwint09, (void) );
_PROTOTYPE( void hwint10, (void) );
_PROTOTYPE( void hwint11, (void) );
_PROTOTYPE( void hwint12, (void) );
_PROTOTYPE( void hwint13, (void) );
_PROTOTYPE( void hwint14, (void) );
_PROTOTYPE( void hwint15, (void) );
/* Exception handlers (real or protected mode), in numerical order. */
void _PROTOTYPE( int00, (void) ), _PROTOTYPE( divide_error, (void) );
void _PROTOTYPE( int01, (void) ), _PROTOTYPE( single_step_exception, (void) );
void _PROTOTYPE( int02, (void) ), _PROTOTYPE( nmi, (void) );
void _PROTOTYPE( int03, (void) ), _PROTOTYPE( breakpoint_exception, (void) );
void _PROTOTYPE( int04, (void) ), _PROTOTYPE( overflow, (void) );
void _PROTOTYPE( int05, (void) ), _PROTOTYPE( bounds_check, (void) );
void _PROTOTYPE( int06, (void) ), _PROTOTYPE( inval_opcode, (void) );
void _PROTOTYPE( int07, (void) ), _PROTOTYPE( copr_not_available, (void) );
void _PROTOTYPE( double_fault, (void) );
void _PROTOTYPE( copr_seg_overrun, (void) );
void _PROTOTYPE( inval_tss, (void) );
void _PROTOTYPE( segment_not_present, (void) );
void _PROTOTYPE( stack_exception, (void) );
void _PROTOTYPE( general_protection, (void) );
void _PROTOTYPE( page_fault, (void) );
void _PROTOTYPE( copr_error, (void) );
void _PROTOTYPE( alignment_check, (void) );
void _PROTOTYPE( machine_check, (void) );
void _PROTOTYPE( simd_exception, (void) );
/* Software interrupt handlers, in numerical order. */
_PROTOTYPE( void trp, (void) );
_PROTOTYPE( void ipc_entry, (void) );
_PROTOTYPE( void kernel_call_entry, (void) );
_PROTOTYPE( void level0_call, (void) );
/* memory.c */
_PROTOTYPE( void i386_freepde, (int pde));
_PROTOTYPE( void getcr3val, (void));
/* exception.c */
struct exception_frame {
reg_t vector; /* which interrupt vector was triggered */
reg_t errcode; /* zero if no exception does not push err code */
reg_t eip;
reg_t cs;
reg_t eflags;
reg_t esp; /* undefined if trap is nested */
reg_t ss; /* undefined if trap is nested */
};
_PROTOTYPE( void exception, (struct exception_frame * frame));
/* klib386.s */
_PROTOTYPE( __dead void monitor, (void) );
_PROTOTYPE( __dead void reset, (void) );
_PROTOTYPE( void int86, (void) );
_PROTOTYPE( reg_t read_cr0, (void) );
_PROTOTYPE( reg_t read_cr2, (void) );
_PROTOTYPE( void write_cr0, (unsigned long value) );
_PROTOTYPE( unsigned long read_cr4, (void) );
_PROTOTYPE( void write_cr4, (unsigned long value) );
_PROTOTYPE( void write_cr3, (unsigned long value) );
_PROTOTYPE( unsigned long read_cpu_flags, (void) );
_PROTOTYPE( void phys_insb, (u16_t port, phys_bytes buf, size_t count) );
_PROTOTYPE( void phys_insw, (u16_t port, phys_bytes buf, size_t count) );
_PROTOTYPE( void phys_outsb, (u16_t port, phys_bytes buf, size_t count) );
_PROTOTYPE( void phys_outsw, (u16_t port, phys_bytes buf, size_t count) );
_PROTOTYPE( u32_t read_cr3, (void) );
_PROTOTYPE( void reload_cr3, (void) );
_PROTOTYPE( void phys_memset, (phys_bytes ph, u32_t c, phys_bytes bytes));
_PROTOTYPE( void reload_ds, (void) );
_PROTOTYPE( void ia32_msr_read, (u32_t reg, u32_t * hi, u32_t * lo) );
_PROTOTYPE( void ia32_msr_write, (u32_t reg, u32_t hi, u32_t lo) );
_PROTOTYPE( void fninit, (void));
_PROTOTYPE( void clts, (void));
_PROTOTYPE( void fxsave, (void *));
_PROTOTYPE( void fnsave, (void *));
_PROTOTYPE( void fxrstor, (void *));
_PROTOTYPE( void frstor, (void *));
_PROTOTYPE( unsigned short fnstsw, (void));
_PROTOTYPE( void fnstcw, (unsigned short* cw));
_PROTOTYPE( void switch_k_stack, (void * esp, void (* continuation)(void)));
_PROTOTYPE(void __switch_address_space, (struct proc * p,
struct proc ** __ptproc));
#define switch_address_space(proc) \
__switch_address_space(proc, get_cpulocal_var_ptr(ptproc))
/* protect.c */
struct tss_s {
reg_t backlink;
reg_t sp0; /* stack pointer to use during interrupt */
reg_t ss0; /* " segment " " " " */
reg_t sp1;
reg_t ss1;
reg_t sp2;
reg_t ss2;
reg_t cr3;
reg_t ip;
reg_t flags;
reg_t ax;
reg_t cx;
reg_t dx;
reg_t bx;
reg_t sp;
reg_t bp;
reg_t si;
reg_t di;
reg_t es;
reg_t cs;
reg_t ss;
reg_t ds;
reg_t fs;
reg_t gs;
reg_t ldt;
u16_t trap;
u16_t iobase;
/* u8_t iomap[0]; */
};
_PROTOTYPE( void prot_init, (void) );
_PROTOTYPE( void idt_init, (void) );
_PROTOTYPE( void init_dataseg, (struct segdesc_s *segdp, phys_bytes base,
vir_bytes size, int privilege) );
_PROTOTYPE( void enable_iop, (struct proc *pp) );
_PROTOTYPE( int prot_set_kern_seg_limit, (vir_bytes limit) );
_PROTOTYPE( void printseg, (char *banner, int iscs, struct proc *pr, u32_t selector) );
_PROTOTYPE( u32_t read_cs, (void));
_PROTOTYPE( u32_t read_ds, (void));
_PROTOTYPE( u32_t read_ss, (void));
/* prototype of an interrupt vector table entry */
struct gate_table_s {
_PROTOTYPE( void (*gate), (void) );
unsigned char vec_nr;
unsigned char privilege;
};
extern struct gate_table_s gate_table_pic[];
/* copies an array of vectors to the IDT. The last vector must be zero filled */
_PROTOTYPE(void idt_copy_vectors, (struct gate_table_s * first));
_PROTOTYPE(void idt_reload,(void));
EXTERN void * k_boot_stktop;
EXTERN void * k_stacks_start;
extern void * k_stacks;
#define get_k_stack_top(cpu) ((void *)(((char*)(k_stacks)) \
+ 2 * ((cpu) + 1) * K_STACK_SIZE))
#ifndef __GNUC__
/* call a function to read the stack fram pointer (%ebp) */
_PROTOTYPE(reg_t read_ebp, (void));
#define get_stack_frame(__X) ((reg_t)read_ebp())
#else
/* read %ebp directly */
#define get_stack_frame(__X) ((reg_t)__builtin_frame_address(0))
#endif
/*
* sets up TSS for a cpu and assigns kernel stack and cpu id
*/
_PROTOTYPE(void tss_init, (unsigned cpu, void * kernel_stack));
_PROTOTYPE( void int_gate, (unsigned vec_nr, vir_bytes offset,
unsigned dpl_type) );
_PROTOTYPE(void __copy_msg_from_user_end, (void));
_PROTOTYPE(void __copy_msg_to_user_end, (void));
_PROTOTYPE(void __user_copy_msg_pointer_failure, (void));
_PROTOTYPE(int platform_tbl_checksum_ok, (void *ptr, unsigned int length));
_PROTOTYPE(int platform_tbl_ptr, (phys_bytes start,
phys_bytes end,
unsigned increment,
void * buff,
unsigned size,
phys_bytes * phys_addr,
int ((* cmp_f)(void *))));
/* breakpoints.c */
#define BREAKPOINT_COUNT 4
#define BREAKPOINT_FLAG_RW_MASK (3 << 0)
#define BREAKPOINT_FLAG_RW_EXEC (0 << 0)
#define BREAKPOINT_FLAG_RW_WRITE (1 << 0)
#define BREAKPOINT_FLAG_RW_RW (2 << 0)
#define BREAKPOINT_FLAG_LEN_MASK (3 << 2)
#define BREAKPOINT_FLAG_LEN_1 (0 << 2)
#define BREAKPOINT_FLAG_LEN_2 (1 << 2)
#define BREAKPOINT_FLAG_LEN_4 (2 << 2)
#define BREAKPOINT_FLAG_MODE_MASK (3 << 4)
#define BREAKPOINT_FLAG_MODE_OFF (0 << 4)
#define BREAKPOINT_FLAG_MODE_LOCAL (1 << 4)
#define BREAKPOINT_FLAG_MODE_GLOBAL (2 << 4)
/* functions defined in architecture-independent kernel source. */
#include "kernel/proto.h"
#endif /* __ASSEMBLY__ */
#endif
Reference in a new issue View git blame Copy permalink