sanchayanmaity/minix
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
minix/kernel/arch/i386/apic_asm.S
Tomas Hruby b90c2d7026 rename of mode/context switching functions 
- this patch only renames schedcheck() to switch_to_user(),
  cycles_accounting_stop() to context_stop() and restart() to
  +restore_user_context()

- the motivation is that since the introduction of schedcheck() it has
  been abused for many things. It deserves a better name.  It should
  express the fact that from the moment we call the function we are in
  the process of switching to user.

- cycles_accounting_stop() was originally a single purpose function.
  As this function is called at were convenient places it is used in
  for other things too, e.g. (un)locking the kernel. Thus it deserves
  a better name too.

- using the old name, restart() does not call schedcheck(), however
  calls to restart are replaced by calls to schedcheck()
  [switch_to_user] and it calls restart() [restore_user_context]
2010-05-18 13:00:39 +00:00

458 lines
12 KiB
ArmAsm
Raw Blame History

#include "archconst.h"
#include "apic.h"
#include "sconst.h"
#include "apic_asm.h"
.globl apic_hwint00 /* handlers for hardware interrupts */
.globl apic_hwint01
.globl apic_hwint02
.globl apic_hwint03
.globl apic_hwint04
.globl apic_hwint05
.globl apic_hwint06
.globl apic_hwint07
.globl apic_hwint08
.globl apic_hwint09
.globl apic_hwint10
.globl apic_hwint11
.globl apic_hwint12
.globl apic_hwint13
.globl apic_hwint14
.globl apic_hwint15
.text
#define APIC_IRQ_HANDLER(irq) \
push $irq ;\
call irq_handle /* intr_handle(irq_handlers[irq]) */ ;\
add $4, %esp ;\
mov lapic_eoi_addr, %eax ;\
movl $0, (%eax) ;\
/*===========================================================================*/
/* interrupt handlers */
/* interrupt handlers for 386 32-bit protected mode */
/* APIC interrupt handlers for 386 32-bit protected mode */
/*===========================================================================*/
#define apic_hwint(irq) \
TEST_INT_IN_KERNEL(4, 0f) ;\
\
SAVE_PROCESS_CTX(0) ;\
push %ebp ;\
call context_stop ;\
add $4, %esp ;\
movl $0, %ebp /* for stack trace */ ;\
APIC_IRQ_HANDLER(irq) ;\
jmp switch_to_user ;\
\
0: \
pusha ;\
call context_stop_idle ;\
APIC_IRQ_HANDLER(irq) ;\
CLEAR_IF(10*4(%esp)) ;\
popa ;\
iret ;
/* Each of these entry points is an expansion of the hwint_master macro */
.balign 16
apic_hwint00:
/* Interrupt routine for irq 0 (the clock). */
apic_hwint(0)
.balign 16
apic_hwint01:
/* Interrupt routine for irq 1 (keyboard) */
apic_hwint(1)
.balign 16
apic_hwint02:
/* Interrupt routine for irq 2 (cascade!) */
apic_hwint(2)
.balign 16
apic_hwint03:
/* Interrupt routine for irq 3 (second serial) */
apic_hwint(3)
.balign 16
apic_hwint04:
/* Interrupt routine for irq 4 (first serial) */
apic_hwint(4)
.balign 16
apic_hwint05:
/* Interrupt routine for irq 5 (XT winchester) */
apic_hwint(5)
.balign 16
apic_hwint06:
/* Interrupt routine for irq 6 (floppy) */
apic_hwint(6)
.balign 16
apic_hwint07:
/* Interrupt routine for irq 7 (printer) */
apic_hwint(7)
.balign 16
apic_hwint08:
/* Interrupt routine for irq 8 (realtime clock) */
apic_hwint(8)
.balign 16
apic_hwint09:
/* Interrupt routine for irq 9 (irq 2 redirected) */
apic_hwint(9)
.balign 16
apic_hwint10:
/* Interrupt routine for irq 10 */
apic_hwint(10)
.balign 16
apic_hwint11:
/* Interrupt routine for irq 11 */
apic_hwint(11)
.balign 16
apic_hwint12:
/* Interrupt routine for irq 12 */
apic_hwint(12)
.balign 16
apic_hwint13:
/* Interrupt routine for irq 13 (FPU exception) */
apic_hwint(13)
.balign 16
apic_hwint14:
/* Interrupt routine for irq 14 (AT winchester) */
apic_hwint(14)
.balign 16
apic_hwint15:
/* Interrupt routine for irq 15 */
apic_hwint(15)
#define LAPIC_INTR_HANDLER(func) \
movl $func, %eax ;\
call *%eax /* call the actual handler */ ;\
mov lapic_eoi_addr, %eax /* the end of handler*/ ;\
movl $0, (%eax) ;
/*===========================================================================*/
/* handler of the local APIC interrupts */
/*===========================================================================*/
#define lapic_intr(func) \
TEST_INT_IN_KERNEL(4, 0f) ;\
\
SAVE_PROCESS_CTX(0) ;\
push %ebp ;\
call context_stop ;\
add $4, %esp ;\
movl $0, %ebp /* for stack trace */ ;\
LAPIC_INTR_HANDLER(func) ;\
jmp switch_to_user ;\
\
0: \
pusha ;\
call context_stop_idle ;\
LAPIC_INTR_HANDLER(func) ;\
CLEAR_IF(10*4(%esp)) ;\
popa ;\
iret ;
/* apic timer tick handlers */
.globl lapic_bsp_timer_int_handler
lapic_bsp_timer_int_handler:
lapic_intr(bsp_timer_int_handler)
.globl lapic_ap_timer_int_handler
lapic_ap_timer_int_handler:
lapic_intr(ap_timer_int_handler)
#ifdef CONFIG_APIC_DEBUG
.data
lapic_intr_dummy_handler_msg:
.ascii "UNHABLED APIC interrupt vector %d\n"
.text
#define lapic_intr_dummy_handler(vect) \
pushl $vect; \
push $lapic_intr_dummy_handler_msg; \
call printf; \
1: jmp 1b; /* never return */
#define LAPIC_INTR_DUMMY_HANDLER(vect) \
.balign LAPIC_INTR_DUMMY_HANDLER_SIZE; \
lapic_intr_dummy_handler_##vect: lapic_intr_dummy_handler(vect)
.globl lapic_intr_dummy_handles_start
lapic_intr_dummy_handles_start:
LAPIC_INTR_DUMMY_HANDLER(0)
LAPIC_INTR_DUMMY_HANDLER(1)
LAPIC_INTR_DUMMY_HANDLER(2)
LAPIC_INTR_DUMMY_HANDLER(3)
LAPIC_INTR_DUMMY_HANDLER(4)
LAPIC_INTR_DUMMY_HANDLER(5)
LAPIC_INTR_DUMMY_HANDLER(6)
LAPIC_INTR_DUMMY_HANDLER(7)
LAPIC_INTR_DUMMY_HANDLER(8)
LAPIC_INTR_DUMMY_HANDLER(9)
LAPIC_INTR_DUMMY_HANDLER(10)
LAPIC_INTR_DUMMY_HANDLER(11)
LAPIC_INTR_DUMMY_HANDLER(12)
LAPIC_INTR_DUMMY_HANDLER(13)
LAPIC_INTR_DUMMY_HANDLER(14)
LAPIC_INTR_DUMMY_HANDLER(15)
LAPIC_INTR_DUMMY_HANDLER(16)
LAPIC_INTR_DUMMY_HANDLER(17)
LAPIC_INTR_DUMMY_HANDLER(18)
LAPIC_INTR_DUMMY_HANDLER(19)
LAPIC_INTR_DUMMY_HANDLER(20)
LAPIC_INTR_DUMMY_HANDLER(21)
LAPIC_INTR_DUMMY_HANDLER(22)
LAPIC_INTR_DUMMY_HANDLER(23)
LAPIC_INTR_DUMMY_HANDLER(24)
LAPIC_INTR_DUMMY_HANDLER(25)
LAPIC_INTR_DUMMY_HANDLER(26)
LAPIC_INTR_DUMMY_HANDLER(27)
LAPIC_INTR_DUMMY_HANDLER(28)
LAPIC_INTR_DUMMY_HANDLER(29)
LAPIC_INTR_DUMMY_HANDLER(30)
LAPIC_INTR_DUMMY_HANDLER(31)
LAPIC_INTR_DUMMY_HANDLER(32)
LAPIC_INTR_DUMMY_HANDLER(33)
LAPIC_INTR_DUMMY_HANDLER(34)
LAPIC_INTR_DUMMY_HANDLER(35)
LAPIC_INTR_DUMMY_HANDLER(36)
LAPIC_INTR_DUMMY_HANDLER(37)
LAPIC_INTR_DUMMY_HANDLER(38)
LAPIC_INTR_DUMMY_HANDLER(39)
LAPIC_INTR_DUMMY_HANDLER(40)
LAPIC_INTR_DUMMY_HANDLER(41)
LAPIC_INTR_DUMMY_HANDLER(42)
LAPIC_INTR_DUMMY_HANDLER(43)
LAPIC_INTR_DUMMY_HANDLER(44)
LAPIC_INTR_DUMMY_HANDLER(45)
LAPIC_INTR_DUMMY_HANDLER(46)
LAPIC_INTR_DUMMY_HANDLER(47)
LAPIC_INTR_DUMMY_HANDLER(48)
LAPIC_INTR_DUMMY_HANDLER(49)
LAPIC_INTR_DUMMY_HANDLER(50)
LAPIC_INTR_DUMMY_HANDLER(51)
LAPIC_INTR_DUMMY_HANDLER(52)
LAPIC_INTR_DUMMY_HANDLER(53)
LAPIC_INTR_DUMMY_HANDLER(54)
LAPIC_INTR_DUMMY_HANDLER(55)
LAPIC_INTR_DUMMY_HANDLER(56)
LAPIC_INTR_DUMMY_HANDLER(57)
LAPIC_INTR_DUMMY_HANDLER(58)
LAPIC_INTR_DUMMY_HANDLER(59)
LAPIC_INTR_DUMMY_HANDLER(60)
LAPIC_INTR_DUMMY_HANDLER(61)
LAPIC_INTR_DUMMY_HANDLER(62)
LAPIC_INTR_DUMMY_HANDLER(63)
LAPIC_INTR_DUMMY_HANDLER(64)
LAPIC_INTR_DUMMY_HANDLER(65)
LAPIC_INTR_DUMMY_HANDLER(66)
LAPIC_INTR_DUMMY_HANDLER(67)
LAPIC_INTR_DUMMY_HANDLER(68)
LAPIC_INTR_DUMMY_HANDLER(69)
LAPIC_INTR_DUMMY_HANDLER(70)
LAPIC_INTR_DUMMY_HANDLER(71)
LAPIC_INTR_DUMMY_HANDLER(72)
LAPIC_INTR_DUMMY_HANDLER(73)
LAPIC_INTR_DUMMY_HANDLER(74)
LAPIC_INTR_DUMMY_HANDLER(75)
LAPIC_INTR_DUMMY_HANDLER(76)
LAPIC_INTR_DUMMY_HANDLER(77)
LAPIC_INTR_DUMMY_HANDLER(78)
LAPIC_INTR_DUMMY_HANDLER(79)
LAPIC_INTR_DUMMY_HANDLER(80)
LAPIC_INTR_DUMMY_HANDLER(81)
LAPIC_INTR_DUMMY_HANDLER(82)
LAPIC_INTR_DUMMY_HANDLER(83)
LAPIC_INTR_DUMMY_HANDLER(84)
LAPIC_INTR_DUMMY_HANDLER(85)
LAPIC_INTR_DUMMY_HANDLER(86)
LAPIC_INTR_DUMMY_HANDLER(87)
LAPIC_INTR_DUMMY_HANDLER(88)
LAPIC_INTR_DUMMY_HANDLER(89)
LAPIC_INTR_DUMMY_HANDLER(90)
LAPIC_INTR_DUMMY_HANDLER(91)
LAPIC_INTR_DUMMY_HANDLER(92)
LAPIC_INTR_DUMMY_HANDLER(93)
LAPIC_INTR_DUMMY_HANDLER(94)
LAPIC_INTR_DUMMY_HANDLER(95)
LAPIC_INTR_DUMMY_HANDLER(96)
LAPIC_INTR_DUMMY_HANDLER(97)
LAPIC_INTR_DUMMY_HANDLER(98)
LAPIC_INTR_DUMMY_HANDLER(99)
LAPIC_INTR_DUMMY_HANDLER(100)
LAPIC_INTR_DUMMY_HANDLER(101)
LAPIC_INTR_DUMMY_HANDLER(102)
LAPIC_INTR_DUMMY_HANDLER(103)
LAPIC_INTR_DUMMY_HANDLER(104)
LAPIC_INTR_DUMMY_HANDLER(105)
LAPIC_INTR_DUMMY_HANDLER(106)
LAPIC_INTR_DUMMY_HANDLER(107)
LAPIC_INTR_DUMMY_HANDLER(108)
LAPIC_INTR_DUMMY_HANDLER(109)
LAPIC_INTR_DUMMY_HANDLER(110)
LAPIC_INTR_DUMMY_HANDLER(111)
LAPIC_INTR_DUMMY_HANDLER(112)
LAPIC_INTR_DUMMY_HANDLER(113)
LAPIC_INTR_DUMMY_HANDLER(114)
LAPIC_INTR_DUMMY_HANDLER(115)
LAPIC_INTR_DUMMY_HANDLER(116)
LAPIC_INTR_DUMMY_HANDLER(117)
LAPIC_INTR_DUMMY_HANDLER(118)
LAPIC_INTR_DUMMY_HANDLER(119)
LAPIC_INTR_DUMMY_HANDLER(120)
LAPIC_INTR_DUMMY_HANDLER(121)
LAPIC_INTR_DUMMY_HANDLER(122)
LAPIC_INTR_DUMMY_HANDLER(123)
LAPIC_INTR_DUMMY_HANDLER(124)
LAPIC_INTR_DUMMY_HANDLER(125)
LAPIC_INTR_DUMMY_HANDLER(126)
LAPIC_INTR_DUMMY_HANDLER(127)
LAPIC_INTR_DUMMY_HANDLER(128)
LAPIC_INTR_DUMMY_HANDLER(129)
LAPIC_INTR_DUMMY_HANDLER(130)
LAPIC_INTR_DUMMY_HANDLER(131)
LAPIC_INTR_DUMMY_HANDLER(132)
LAPIC_INTR_DUMMY_HANDLER(133)
LAPIC_INTR_DUMMY_HANDLER(134)
LAPIC_INTR_DUMMY_HANDLER(135)
LAPIC_INTR_DUMMY_HANDLER(136)
LAPIC_INTR_DUMMY_HANDLER(137)
LAPIC_INTR_DUMMY_HANDLER(138)
LAPIC_INTR_DUMMY_HANDLER(139)
LAPIC_INTR_DUMMY_HANDLER(140)
LAPIC_INTR_DUMMY_HANDLER(141)
LAPIC_INTR_DUMMY_HANDLER(142)
LAPIC_INTR_DUMMY_HANDLER(143)
LAPIC_INTR_DUMMY_HANDLER(144)
LAPIC_INTR_DUMMY_HANDLER(145)
LAPIC_INTR_DUMMY_HANDLER(146)
LAPIC_INTR_DUMMY_HANDLER(147)
LAPIC_INTR_DUMMY_HANDLER(148)
LAPIC_INTR_DUMMY_HANDLER(149)
LAPIC_INTR_DUMMY_HANDLER(150)
LAPIC_INTR_DUMMY_HANDLER(151)
LAPIC_INTR_DUMMY_HANDLER(152)
LAPIC_INTR_DUMMY_HANDLER(153)
LAPIC_INTR_DUMMY_HANDLER(154)
LAPIC_INTR_DUMMY_HANDLER(155)
LAPIC_INTR_DUMMY_HANDLER(156)
LAPIC_INTR_DUMMY_HANDLER(157)
LAPIC_INTR_DUMMY_HANDLER(158)
LAPIC_INTR_DUMMY_HANDLER(159)
LAPIC_INTR_DUMMY_HANDLER(160)
LAPIC_INTR_DUMMY_HANDLER(161)
LAPIC_INTR_DUMMY_HANDLER(162)
LAPIC_INTR_DUMMY_HANDLER(163)
LAPIC_INTR_DUMMY_HANDLER(164)
LAPIC_INTR_DUMMY_HANDLER(165)
LAPIC_INTR_DUMMY_HANDLER(166)
LAPIC_INTR_DUMMY_HANDLER(167)
LAPIC_INTR_DUMMY_HANDLER(168)
LAPIC_INTR_DUMMY_HANDLER(169)
LAPIC_INTR_DUMMY_HANDLER(170)
LAPIC_INTR_DUMMY_HANDLER(171)
LAPIC_INTR_DUMMY_HANDLER(172)
LAPIC_INTR_DUMMY_HANDLER(173)
LAPIC_INTR_DUMMY_HANDLER(174)
LAPIC_INTR_DUMMY_HANDLER(175)
LAPIC_INTR_DUMMY_HANDLER(176)
LAPIC_INTR_DUMMY_HANDLER(177)
LAPIC_INTR_DUMMY_HANDLER(178)
LAPIC_INTR_DUMMY_HANDLER(179)
LAPIC_INTR_DUMMY_HANDLER(180)
LAPIC_INTR_DUMMY_HANDLER(181)
LAPIC_INTR_DUMMY_HANDLER(182)
LAPIC_INTR_DUMMY_HANDLER(183)
LAPIC_INTR_DUMMY_HANDLER(184)
LAPIC_INTR_DUMMY_HANDLER(185)
LAPIC_INTR_DUMMY_HANDLER(186)
LAPIC_INTR_DUMMY_HANDLER(187)
LAPIC_INTR_DUMMY_HANDLER(188)
LAPIC_INTR_DUMMY_HANDLER(189)
LAPIC_INTR_DUMMY_HANDLER(190)
LAPIC_INTR_DUMMY_HANDLER(191)
LAPIC_INTR_DUMMY_HANDLER(192)
LAPIC_INTR_DUMMY_HANDLER(193)
LAPIC_INTR_DUMMY_HANDLER(194)
LAPIC_INTR_DUMMY_HANDLER(195)
LAPIC_INTR_DUMMY_HANDLER(196)
LAPIC_INTR_DUMMY_HANDLER(197)
LAPIC_INTR_DUMMY_HANDLER(198)
LAPIC_INTR_DUMMY_HANDLER(199)
LAPIC_INTR_DUMMY_HANDLER(200)
LAPIC_INTR_DUMMY_HANDLER(201)
LAPIC_INTR_DUMMY_HANDLER(202)
LAPIC_INTR_DUMMY_HANDLER(203)
LAPIC_INTR_DUMMY_HANDLER(204)
LAPIC_INTR_DUMMY_HANDLER(205)
LAPIC_INTR_DUMMY_HANDLER(206)
LAPIC_INTR_DUMMY_HANDLER(207)
LAPIC_INTR_DUMMY_HANDLER(208)
LAPIC_INTR_DUMMY_HANDLER(209)
LAPIC_INTR_DUMMY_HANDLER(210)
LAPIC_INTR_DUMMY_HANDLER(211)
LAPIC_INTR_DUMMY_HANDLER(212)
LAPIC_INTR_DUMMY_HANDLER(213)
LAPIC_INTR_DUMMY_HANDLER(214)
LAPIC_INTR_DUMMY_HANDLER(215)
LAPIC_INTR_DUMMY_HANDLER(216)
LAPIC_INTR_DUMMY_HANDLER(217)
LAPIC_INTR_DUMMY_HANDLER(218)
LAPIC_INTR_DUMMY_HANDLER(219)
LAPIC_INTR_DUMMY_HANDLER(220)
LAPIC_INTR_DUMMY_HANDLER(221)
LAPIC_INTR_DUMMY_HANDLER(222)
LAPIC_INTR_DUMMY_HANDLER(223)
LAPIC_INTR_DUMMY_HANDLER(224)
LAPIC_INTR_DUMMY_HANDLER(225)
LAPIC_INTR_DUMMY_HANDLER(226)
LAPIC_INTR_DUMMY_HANDLER(227)
LAPIC_INTR_DUMMY_HANDLER(228)
LAPIC_INTR_DUMMY_HANDLER(229)
LAPIC_INTR_DUMMY_HANDLER(230)
LAPIC_INTR_DUMMY_HANDLER(231)
LAPIC_INTR_DUMMY_HANDLER(232)
LAPIC_INTR_DUMMY_HANDLER(233)
LAPIC_INTR_DUMMY_HANDLER(234)
LAPIC_INTR_DUMMY_HANDLER(235)
LAPIC_INTR_DUMMY_HANDLER(236)
LAPIC_INTR_DUMMY_HANDLER(237)
LAPIC_INTR_DUMMY_HANDLER(238)
LAPIC_INTR_DUMMY_HANDLER(239)
LAPIC_INTR_DUMMY_HANDLER(240)
LAPIC_INTR_DUMMY_HANDLER(241)
LAPIC_INTR_DUMMY_HANDLER(242)
LAPIC_INTR_DUMMY_HANDLER(243)
LAPIC_INTR_DUMMY_HANDLER(244)
LAPIC_INTR_DUMMY_HANDLER(245)
LAPIC_INTR_DUMMY_HANDLER(246)
LAPIC_INTR_DUMMY_HANDLER(247)
LAPIC_INTR_DUMMY_HANDLER(248)
LAPIC_INTR_DUMMY_HANDLER(249)
LAPIC_INTR_DUMMY_HANDLER(250)
LAPIC_INTR_DUMMY_HANDLER(251)
LAPIC_INTR_DUMMY_HANDLER(252)
LAPIC_INTR_DUMMY_HANDLER(253)
LAPIC_INTR_DUMMY_HANDLER(254)
LAPIC_INTR_DUMMY_HANDLER(255)
.globl lapic_intr_dummy_handles_end
lapic_intr_dummy_handles_end:
#endif /* CONFIG_APIC_DEBUG */
Reference in a new issue View git blame Copy permalink