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Rewrite the netisr dispatcher.

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Rename `_dummynetisr' to `dummynetisr' so that it doesn't show up in
profiling (with gprof -u).

Clean up.
This commit is contained in:
Bruce Evans 1995-02-08 21:46:44 +00:00
parent cdaec7b1a1
commit 2c3a858e68
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=6253
1 changed files with 26 additions and 39 deletions
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65
sys/i386/isa/icu.s
View file

@ -36,7 +36,7 @@
*
* @(#)icu.s 7.2 (Berkeley) 5/21/91
*
* $Id: icu.s,v 1.17 1994/12/30 12:43:35 bde Exp $
* $Id: icu.s,v 1.18 1995/01/14 11:00:27 bde Exp $
*/
/*
@ -50,8 +50,6 @@
* numbers are used without translation in the masks.
*/
#include <net/netisr.h>
.data
.globl _cpl
_cpl: .long HWI_MASK | SWI_MASK /* current priority (all off) */
@ -65,10 +63,18 @@ _bio_imask: .long 0
_net_imask: .long 0
.globl _ipending
_ipending: .long 0
.globl _astpending
_astpending: .long 0 /* tells us an AST needs to be taken */
.globl _netisr
_netisr: .long 0 /* set with bits for which queue to service */
.globl _netisrs
_netisrs:
.long dummynetisr, dummynetisr, dummynetisr, dummynetisr
.long dummynetisr, dummynetisr, dummynetisr, dummynetisr
.long dummynetisr, dummynetisr, dummynetisr, dummynetisr
.long dummynetisr, dummynetisr, dummynetisr, dummynetisr
.long dummynetisr, dummynetisr, dummynetisr, dummynetisr
.long dummynetisr, dummynetisr, dummynetisr, dummynetisr
.long dummynetisr, dummynetisr, dummynetisr, dummynetisr
.long dummynetisr, dummynetisr, dummynetisr, dummynetisr
vec:
.long vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7
.long vec8, vec9, vec10, vec11, vec12, vec13, vec14, vec15
@ -302,45 +308,26 @@ vec/**/irq_num: ; \
BUILD_VEC(14)
BUILD_VEC(15)
ALIGN_TEXT
.globl _dummynetisr
_dummynetisr:
MCOUNT
ret
.data
.globl _netisrs
_netisrs:
.long _dummynetisr, _dummynetisr, _dummynetisr, _dummynetisr
.long _dummynetisr, _dummynetisr, _dummynetisr, _dummynetisr
.long _dummynetisr, _dummynetisr, _dummynetisr, _dummynetisr
.long _dummynetisr, _dummynetisr, _dummynetisr, _dummynetisr
.long _dummynetisr, _dummynetisr, _dummynetisr, _dummynetisr
.long _dummynetisr, _dummynetisr, _dummynetisr, _dummynetisr
.long _dummynetisr, _dummynetisr, _dummynetisr, _dummynetisr
.long _dummynetisr, _dummynetisr, _dummynetisr, _dummynetisr
.text
#define DONET(s) ; \
btrl $s,_netisr ; \
jnc 9f ; \
movl $_netisrs+4*s,%eax ; \
call (%eax) ; \
9:
ALIGN_TEXT
swi_net:
MCOUNT
DONET(0) ; DONET(1) ; DONET(2) ; DONET(3) ; DONET(4)
DONET(5) ; DONET(6) ; DONET(7) ; DONET(8) ; DONET(9)
DONET(10) ; DONET(11) ; DONET(12) ; DONET(13) ; DONET(14)
DONET(15) ; DONET(16) ; DONET(17) ; DONET(18) ; DONET(19)
DONET(20) ; DONET(21) ; DONET(22) ; DONET(23) ; DONET(24)
DONET(25) ; DONET(26) ; DONET(27) ; DONET(28) ; DONET(29)
DONET(30) ; DONET(31)
bsfl _netisr,%eax
je swi_net_done
swi_net_more:
btrl %eax,_netisr
jnc swi_net_next
call *_netisrs(,%eax,4)
swi_net_next:
bsfl _netisr,%eax
jne swi_net_more
swi_net_done:
ret
ALIGN_TEXT
dummynetisr:
MCOUNT
ret
/*
* XXX there should be a registration function to put the handler for the
* attached driver directly in ihandlers. Then this function will go away.