--- /dev/null
+/*
+ * from: vector.s, 386BSD 0.1 unknown origin
+ * $FreeBSD: src/sys/i386/isa/apic_vector.s,v 1.47.2.5 2001/09/01 22:33:38 tegge Exp $
+ */
+
+#include <machine/asmacros.h>
+#include <machine/lock.h>
+#include <machine/psl.h>
+#include <machine/trap.h>
+#include <machine/segments.h>
+
+#include "assym.s"
+
+#ifdef foo
+/* convert an absolute IRQ# into bitmask */
+#define IRQ_LBIT(irq_num) (1UL << (irq_num & 0x3f))
+#endif
+
+#define IRQ_SBITS(irq_num) ((irq_num) & 0x3f)
+
+/* convert an absolute IRQ# into gd_ipending index */
+#define IRQ_LIDX(irq_num) ((irq_num) >> 6)
+
+#define MSI_PUSH_FRAME \
+ PUSH_FRAME ; /* 15 regs + space for 5 extras */ \
+ movq $0,TF_XFLAGS(%rsp) ; \
+ movq $0,TF_TRAPNO(%rsp) ; \
+ movq $0,TF_ADDR(%rsp) ; \
+ movq $0,TF_FLAGS(%rsp) ; \
+ movq $0,TF_ERR(%rsp) ; \
+ cld ; \
+
+/*
+ * Interrupt call handlers run in the following sequence:
+ *
+ * - Push the trap frame required by doreti
+ * - If we cannot take the interrupt set its ipending bit and
+ * doreti.
+ * - If we can take the interrupt clear its ipending bit,
+ * call the handler and doreti.
+ *
+ * YYY can cache gd base opitner instead of using hidden %fs prefixes.
+ */
+
+#define MSI_HANDLER(irq_num) \
+ .text ; \
+ SUPERALIGN_TEXT ; \
+IDTVEC(msi_intr##irq_num) ; \
+ MSI_PUSH_FRAME ; \
+ FAKE_MCOUNT(TF_RIP(%rsp)) ; \
+ movq lapic, %rax ; \
+ movl $0, LA_EOI(%rax) ; \
+ movq PCPU(curthread),%rbx ; \
+ testl $-1,TD_NEST_COUNT(%rbx) ; \
+ jne 1f ; \
+ testl $-1,TD_CRITCOUNT(%rbx) ; \
+ je 2f ; \
+1: ; \
+ /* in critical section, make interrupt pending */ \
+ /* set the pending bit and return, leave interrupt masked */ \
+ movq $1,%rcx ; \
+ shlq $IRQ_SBITS(irq_num),%rcx ; \
+ movq $IRQ_LIDX(irq_num),%rdx ; \
+ orq %rcx,PCPU_E8(ipending,%rdx) ; \
+ orl $RQF_INTPEND,PCPU(reqflags) ; \
+ jmp 5f ; \
+2: ; \
+ /* clear pending bit, run handler */ \
+ movq $1,%rcx ; \
+ shlq $IRQ_SBITS(irq_num),%rcx ; \
+ notq %rcx ; \
+ movq $IRQ_LIDX(irq_num),%rdx ; \
+ andq %rcx,PCPU_E8(ipending,%rdx) ; \
+ pushq $irq_num ; /* trapframe -> intrframe */ \
+ movq %rsp, %rdi ; /* pass frame by reference */ \
+ incl TD_CRITCOUNT(%rbx) ; \
+ sti ; \
+ call ithread_fast_handler ; \
+ decl TD_CRITCOUNT(%rbx) ; \
+ addq $8, %rsp ; /* intrframe -> trapframe */ \
+5: ; \
+ MEXITCOUNT ; \
+ jmp doreti ; \
+
+
+MCOUNT_LABEL(bintr)
+ MSI_HANDLER(16)
+ MSI_HANDLER(17)
+ MSI_HANDLER(18)
+ MSI_HANDLER(19)
+ MSI_HANDLER(20)
+ MSI_HANDLER(21)
+ MSI_HANDLER(22)
+ MSI_HANDLER(23)
+ MSI_HANDLER(24)
+ MSI_HANDLER(25)
+ MSI_HANDLER(26)
+ MSI_HANDLER(27)
+ MSI_HANDLER(28)
+ MSI_HANDLER(29)
+ MSI_HANDLER(30)
+ MSI_HANDLER(31)
+ MSI_HANDLER(32)
+ MSI_HANDLER(33)
+ MSI_HANDLER(34)
+ MSI_HANDLER(35)
+ MSI_HANDLER(36)
+ MSI_HANDLER(37)
+ MSI_HANDLER(38)
+ MSI_HANDLER(39)
+ MSI_HANDLER(40)
+ MSI_HANDLER(41)
+ MSI_HANDLER(42)
+ MSI_HANDLER(43)
+ MSI_HANDLER(44)
+ MSI_HANDLER(45)
+ MSI_HANDLER(46)
+ MSI_HANDLER(47)
+ MSI_HANDLER(48)
+ MSI_HANDLER(49)
+ MSI_HANDLER(50)
+ MSI_HANDLER(51)
+ MSI_HANDLER(52)
+ MSI_HANDLER(53)
+ MSI_HANDLER(54)
+ MSI_HANDLER(55)
+ MSI_HANDLER(56)
+ MSI_HANDLER(57)
+ MSI_HANDLER(58)
+ MSI_HANDLER(59)
+ MSI_HANDLER(60)
+ MSI_HANDLER(61)
+ MSI_HANDLER(62)
+ MSI_HANDLER(63)
+ MSI_HANDLER(64)
+ MSI_HANDLER(65)
+ MSI_HANDLER(66)
+ MSI_HANDLER(67)
+ MSI_HANDLER(68)
+ MSI_HANDLER(69)
+ MSI_HANDLER(70)
+ MSI_HANDLER(71)
+ MSI_HANDLER(72)
+ MSI_HANDLER(73)
+ MSI_HANDLER(74)
+ MSI_HANDLER(75)
+ MSI_HANDLER(76)
+ MSI_HANDLER(77)
+ MSI_HANDLER(78)
+ MSI_HANDLER(79)
+ MSI_HANDLER(80)
+ MSI_HANDLER(81)
+ MSI_HANDLER(82)
+ MSI_HANDLER(83)
+ MSI_HANDLER(84)
+ MSI_HANDLER(85)
+ MSI_HANDLER(86)
+ MSI_HANDLER(87)
+ MSI_HANDLER(88)
+ MSI_HANDLER(89)
+ MSI_HANDLER(90)
+ MSI_HANDLER(91)
+ MSI_HANDLER(92)
+ MSI_HANDLER(93)
+ MSI_HANDLER(94)
+ MSI_HANDLER(95)
+ MSI_HANDLER(96)
+ MSI_HANDLER(97)
+ MSI_HANDLER(98)
+ MSI_HANDLER(99)
+ MSI_HANDLER(100)
+ MSI_HANDLER(101)
+ MSI_HANDLER(102)
+ MSI_HANDLER(103)
+ MSI_HANDLER(104)
+ MSI_HANDLER(105)
+ MSI_HANDLER(106)
+ MSI_HANDLER(107)
+ MSI_HANDLER(108)
+ MSI_HANDLER(109)
+ MSI_HANDLER(110)
+ MSI_HANDLER(111)
+ MSI_HANDLER(112)
+ MSI_HANDLER(113)
+ MSI_HANDLER(114)
+ MSI_HANDLER(115)
+ MSI_HANDLER(116)
+ MSI_HANDLER(117)
+ MSI_HANDLER(118)
+ MSI_HANDLER(119)
+ MSI_HANDLER(120)
+ MSI_HANDLER(121)
+ MSI_HANDLER(122)
+ MSI_HANDLER(123)
+ MSI_HANDLER(124)
+ MSI_HANDLER(125)
+ MSI_HANDLER(126)
+ MSI_HANDLER(127)
+ MSI_HANDLER(128)
+ MSI_HANDLER(129)
+ MSI_HANDLER(130)
+ MSI_HANDLER(131)
+ MSI_HANDLER(132)
+ MSI_HANDLER(133)
+ MSI_HANDLER(134)
+ MSI_HANDLER(135)
+ MSI_HANDLER(136)
+ MSI_HANDLER(137)
+ MSI_HANDLER(138)
+ MSI_HANDLER(139)
+ MSI_HANDLER(140)
+ MSI_HANDLER(141)
+ MSI_HANDLER(142)
+ MSI_HANDLER(143)
+ MSI_HANDLER(144)
+ MSI_HANDLER(145)
+ MSI_HANDLER(146)
+ MSI_HANDLER(147)
+ MSI_HANDLER(148)
+ MSI_HANDLER(149)
+ MSI_HANDLER(150)
+ MSI_HANDLER(151)
+ MSI_HANDLER(152)
+ MSI_HANDLER(153)
+ MSI_HANDLER(154)
+ MSI_HANDLER(155)
+ MSI_HANDLER(156)
+ MSI_HANDLER(157)
+ MSI_HANDLER(158)
+ MSI_HANDLER(159)
+ MSI_HANDLER(160)
+ MSI_HANDLER(161)
+ MSI_HANDLER(162)
+ MSI_HANDLER(163)
+ MSI_HANDLER(164)
+ MSI_HANDLER(165)
+ MSI_HANDLER(166)
+ MSI_HANDLER(167)
+ MSI_HANDLER(168)
+ MSI_HANDLER(169)
+ MSI_HANDLER(170)
+ MSI_HANDLER(171)
+ MSI_HANDLER(172)
+ MSI_HANDLER(173)
+ MSI_HANDLER(174)
+ MSI_HANDLER(175)
+ MSI_HANDLER(176)
+ MSI_HANDLER(177)
+ MSI_HANDLER(178)
+ MSI_HANDLER(179)
+ MSI_HANDLER(180)
+ MSI_HANDLER(181)
+ MSI_HANDLER(182)
+ MSI_HANDLER(183)
+ MSI_HANDLER(184)
+ MSI_HANDLER(185)
+ MSI_HANDLER(186)
+ MSI_HANDLER(187)
+ MSI_HANDLER(188)
+ MSI_HANDLER(189)
+ MSI_HANDLER(190)
+ MSI_HANDLER(191)
+MCOUNT_LABEL(eintr)
+
+ .data
+
+ .text
projects / dragonfly.git / commitdiff