sys/platform/pc64/x86_64/msi_vector.s

   1 /*
   2  *      from: vector.s, 386BSD 0.1 unknown origin
   3  * $FreeBSD: src/sys/i386/isa/apic_vector.s,v 1.47.2.5 2001/09/01 22:33:38 tegge Exp $
   4  */
   5
   6 #include <machine/asmacros.h>
   7 #include <machine/lock.h>
   8 #include <machine/psl.h>
   9 #include <machine/trap.h>
  10 #include <machine/segments.h>
  11
  12 #include "assym.s"
  13
  14 #ifdef foo
  15 /* convert an absolute IRQ# into bitmask */
  16 #define IRQ_LBIT(irq_num)       (1UL << (irq_num & 0x3f))
  17 #endif
  18
  19 #define IRQ_SBITS(irq_num)      ((irq_num) & 0x3f)
  20
  21 /* convert an absolute IRQ# into gd_ipending index */
  22 #define IRQ_LIDX(irq_num)       ((irq_num) >> 6)
  23
  24 #define MSI_PUSH_FRAME                                                  \
  25         PUSH_FRAME ;            /* 15 regs + space for 5 extras */      \
  26         movq $0,TF_XFLAGS(%rsp) ;                                       \
  27         movq $0,TF_TRAPNO(%rsp) ;                                       \
  28         movq $0,TF_ADDR(%rsp) ;                                         \
  29         movq $0,TF_FLAGS(%rsp) ;                                        \
  30         movq $0,TF_ERR(%rsp) ;                                          \
  31         cld ;                                                           \
  32
  33 /*
  34  * Interrupt call handlers run in the following sequence:
  35  *
  36  *      - Push the trap frame required by doreti
  37  *      - If we cannot take the interrupt set its ipending bit and
  38  *        doreti.
  39  *      - If we can take the interrupt clear its ipending bit,
  40  *        call the handler and doreti.
  41  *
  42  * YYY can cache gd base opitner instead of using hidden %fs prefixes.
  43  */
  44
  45 #define MSI_HANDLER(irq_num)                                            \
  46         .text ;                                                         \
  47         SUPERALIGN_TEXT ;                                               \
  48 IDTVEC(msi_intr##irq_num) ;                                             \
  49         MSI_PUSH_FRAME ;                                                \
  50         FAKE_MCOUNT(TF_RIP(%rsp)) ;                                     \
  51         movq    lapic, %rax ;                                           \
  52         movl    $0, LA_EOI(%rax) ;                                      \
  53         movq    PCPU(curthread),%rbx ;                                  \
  54         testl   $-1,TD_NEST_COUNT(%rbx) ;                               \
  55         jne     1f ;                                                    \
  56         testl   $-1,TD_CRITCOUNT(%rbx) ;                                \
  57         je      2f ;                                                    \
  58 1: ;                                                                    \
  59         /* in critical section, make interrupt pending */               \
  60         /* set the pending bit and return, leave interrupt masked */    \
  61         movq    $1,%rcx ;                                               \
  62         shlq    $IRQ_SBITS(irq_num),%rcx ;                              \
  63         movq    $IRQ_LIDX(irq_num),%rdx ;                               \
  64         orq     %rcx,PCPU_E8(ipending,%rdx) ;                           \
  65         orl     $RQF_INTPEND,PCPU(reqflags) ;                           \
  66         jmp     5f ;                                                    \
  67 2: ;                                                                    \
  68         /* clear pending bit, run handler */                            \
  69         movq    $1,%rcx ;                                               \
  70         shlq    $IRQ_SBITS(irq_num),%rcx ;                              \
  71         notq    %rcx ;                                                  \
  72         movq    $IRQ_LIDX(irq_num),%rdx ;                               \
  73         andq    %rcx,PCPU_E8(ipending,%rdx) ;                           \
  74         pushq   $irq_num ;              /* trapframe -> intrframe */    \
  75         movq    %rsp, %rdi ;            /* pass frame by reference */   \
  76         incl    TD_CRITCOUNT(%rbx) ;                                    \
  77         sti ;                                                           \
  78         call    ithread_fast_handler ;                                  \
  79         decl    TD_CRITCOUNT(%rbx) ;                                    \
  80         addq    $8, %rsp ;              /* intrframe -> trapframe */    \
  81 5: ;                                                                    \
  82         MEXITCOUNT ;                                                    \
  83         jmp     doreti ;                                                \
  84
  85
  86 MCOUNT_LABEL(bintr)
  87         MSI_HANDLER(0)
  88         MSI_HANDLER(1)
  89         MSI_HANDLER(2)
  90         MSI_HANDLER(3)
  91         MSI_HANDLER(4)
  92         MSI_HANDLER(5)
  93         MSI_HANDLER(6)
  94         MSI_HANDLER(7)
  95         MSI_HANDLER(8)
  96         MSI_HANDLER(9)
  97         MSI_HANDLER(10)
  98         MSI_HANDLER(11)
  99         MSI_HANDLER(12)
 100         MSI_HANDLER(13)
 101         MSI_HANDLER(14)
 102         MSI_HANDLER(15)
 103         MSI_HANDLER(16)
 104         MSI_HANDLER(17)
 105         MSI_HANDLER(18)
 106         MSI_HANDLER(19)
 107         MSI_HANDLER(20)
 108         MSI_HANDLER(21)
 109         MSI_HANDLER(22)
 110         MSI_HANDLER(23)
 111         MSI_HANDLER(24)
 112         MSI_HANDLER(25)
 113         MSI_HANDLER(26)
 114         MSI_HANDLER(27)
 115         MSI_HANDLER(28)
 116         MSI_HANDLER(29)
 117         MSI_HANDLER(30)
 118         MSI_HANDLER(31)
 119         MSI_HANDLER(32)
 120         MSI_HANDLER(33)
 121         MSI_HANDLER(34)
 122         MSI_HANDLER(35)
 123         MSI_HANDLER(36)
 124         MSI_HANDLER(37)
 125         MSI_HANDLER(38)
 126         MSI_HANDLER(39)
 127         MSI_HANDLER(40)
 128         MSI_HANDLER(41)
 129         MSI_HANDLER(42)
 130         MSI_HANDLER(43)
 131         MSI_HANDLER(44)
 132         MSI_HANDLER(45)
 133         MSI_HANDLER(46)
 134         MSI_HANDLER(47)
 135         MSI_HANDLER(48)
 136         MSI_HANDLER(49)
 137         MSI_HANDLER(50)
 138         MSI_HANDLER(51)
 139         MSI_HANDLER(52)
 140         MSI_HANDLER(53)
 141         MSI_HANDLER(54)
 142         MSI_HANDLER(55)
 143         MSI_HANDLER(56)
 144         MSI_HANDLER(57)
 145         MSI_HANDLER(58)
 146         MSI_HANDLER(59)
 147         MSI_HANDLER(60)
 148         MSI_HANDLER(61)
 149         MSI_HANDLER(62)
 150         MSI_HANDLER(63)
 151         MSI_HANDLER(64)
 152         MSI_HANDLER(65)
 153         MSI_HANDLER(66)
 154         MSI_HANDLER(67)
 155         MSI_HANDLER(68)
 156         MSI_HANDLER(69)
 157         MSI_HANDLER(70)
 158         MSI_HANDLER(71)
 159         MSI_HANDLER(72)
 160         MSI_HANDLER(73)
 161         MSI_HANDLER(74)
 162         MSI_HANDLER(75)
 163         MSI_HANDLER(76)
 164         MSI_HANDLER(77)
 165         MSI_HANDLER(78)
 166         MSI_HANDLER(79)
 167         MSI_HANDLER(80)
 168         MSI_HANDLER(81)
 169         MSI_HANDLER(82)
 170         MSI_HANDLER(83)
 171         MSI_HANDLER(84)
 172         MSI_HANDLER(85)
 173         MSI_HANDLER(86)
 174         MSI_HANDLER(87)
 175         MSI_HANDLER(88)
 176         MSI_HANDLER(89)
 177         MSI_HANDLER(90)
 178         MSI_HANDLER(91)
 179         MSI_HANDLER(92)
 180         MSI_HANDLER(93)
 181         MSI_HANDLER(94)
 182         MSI_HANDLER(95)
 183         MSI_HANDLER(96)
 184         MSI_HANDLER(97)
 185         MSI_HANDLER(98)
 186         MSI_HANDLER(99)
 187         MSI_HANDLER(100)
 188         MSI_HANDLER(101)
 189         MSI_HANDLER(102)
 190         MSI_HANDLER(103)
 191         MSI_HANDLER(104)
 192         MSI_HANDLER(105)
 193         MSI_HANDLER(106)
 194         MSI_HANDLER(107)
 195         MSI_HANDLER(108)
 196         MSI_HANDLER(109)
 197         MSI_HANDLER(110)
 198         MSI_HANDLER(111)
 199         MSI_HANDLER(112)
 200         MSI_HANDLER(113)
 201         MSI_HANDLER(114)
 202         MSI_HANDLER(115)
 203         MSI_HANDLER(116)
 204         MSI_HANDLER(117)
 205         MSI_HANDLER(118)
 206         MSI_HANDLER(119)
 207         MSI_HANDLER(120)
 208         MSI_HANDLER(121)
 209         MSI_HANDLER(122)
 210         MSI_HANDLER(123)
 211         MSI_HANDLER(124)
 212         MSI_HANDLER(125)
 213         MSI_HANDLER(126)
 214         MSI_HANDLER(127)
 215         MSI_HANDLER(128)
 216         MSI_HANDLER(129)
 217         MSI_HANDLER(130)
 218         MSI_HANDLER(131)
 219         MSI_HANDLER(132)
 220         MSI_HANDLER(133)
 221         MSI_HANDLER(134)
 222         MSI_HANDLER(135)
 223         MSI_HANDLER(136)
 224         MSI_HANDLER(137)
 225         MSI_HANDLER(138)
 226         MSI_HANDLER(139)
 227         MSI_HANDLER(140)
 228         MSI_HANDLER(141)
 229         MSI_HANDLER(142)
 230         MSI_HANDLER(143)
 231         MSI_HANDLER(144)
 232         MSI_HANDLER(145)
 233         MSI_HANDLER(146)
 234         MSI_HANDLER(147)
 235         MSI_HANDLER(148)
 236         MSI_HANDLER(149)
 237         MSI_HANDLER(150)
 238         MSI_HANDLER(151)
 239         MSI_HANDLER(152)
 240         MSI_HANDLER(153)
 241         MSI_HANDLER(154)
 242         MSI_HANDLER(155)
 243         MSI_HANDLER(156)
 244         MSI_HANDLER(157)
 245         MSI_HANDLER(158)
 246         MSI_HANDLER(159)
 247         MSI_HANDLER(160)
 248         MSI_HANDLER(161)
 249         MSI_HANDLER(162)
 250         MSI_HANDLER(163)
 251         MSI_HANDLER(164)
 252         MSI_HANDLER(165)
 253         MSI_HANDLER(166)
 254         MSI_HANDLER(167)
 255         MSI_HANDLER(168)
 256         MSI_HANDLER(169)
 257         MSI_HANDLER(170)
 258         MSI_HANDLER(171)
 259         MSI_HANDLER(172)
 260         MSI_HANDLER(173)
 261         MSI_HANDLER(174)
 262         MSI_HANDLER(175)
 263         MSI_HANDLER(176)
 264         MSI_HANDLER(177)
 265         MSI_HANDLER(178)
 266         MSI_HANDLER(179)
 267         MSI_HANDLER(180)
 268         MSI_HANDLER(181)
 269         MSI_HANDLER(182)
 270         MSI_HANDLER(183)
 271         MSI_HANDLER(184)
 272         MSI_HANDLER(185)
 273         MSI_HANDLER(186)
 274         MSI_HANDLER(187)
 275         MSI_HANDLER(188)
 276         MSI_HANDLER(189)
 277         MSI_HANDLER(190)
 278         MSI_HANDLER(191)
 279 MCOUNT_LABEL(eintr)
 280
 281         .data
 282
 283         .text