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Code Issues Releases Activity

Move io_apic_{read,write} from apic_ipl.s (where they do not belong) into

Browse Source 
mpapic.c.  This gives us the benefit of C type checking.  These functions
are not called in any critical paths and are not used by the interrupt
routines.
This commit is contained in:
Peter Wemm 2000-12-06 01:04:02 +00:00
parent 61e1a8f478
commit a263238c86
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=69651
5 changed files with 32 additions and 41 deletions
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7
sys/amd64/include/smp.h
View File

@ -58,10 +58,6 @@ extern volatile u_int checkstate_need_ast;
extern volatile u_int resched_cpus;
extern void (*cpustop_restartfunc) __P((void));
/* functions in apic_ipl.s */
u_int io_apic_read __P((int, int));
void io_apic_write __P((int, int, u_int));
/* global data in mp_machdep.c */
extern int bsp_apic_ready;
extern int mp_ncpus;
@ -146,6 +142,9 @@ int ext_int_setup __P((int, int));
void set_apic_timer __P((int));
int read_apic_timer __P((void));
void u_sleep __P((int));
u_int io_apic_read __P((int, int));
void io_apic_write __P((int, int, u_int));
/* global data in init_smp.c */
extern int invltlb_ok;

23
sys/i386/i386/mpapic.c
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@ -758,3 +758,26 @@ u_sleep(int count)
while (read_apic_timer())
/* spin */ ;
}
/*
* IOAPIC access helper functions.
*/
u_int
io_apic_read(int idx, int reg)
{
volatile ioapic_t *apic;
apic = ioapic[idx];
apic->ioregsel = reg;
return apic->iowin;
}
void
io_apic_write(int idx, int reg, u_int value)
{
volatile ioapic_t *apic;
apic = ioapic[idx];
apic->ioregsel = reg;
apic->iowin = value;
}

7
sys/i386/include/smp.h
View File

@ -58,10 +58,6 @@ extern volatile u_int checkstate_need_ast;
extern volatile u_int resched_cpus;
extern void (*cpustop_restartfunc) __P((void));
/* functions in apic_ipl.s */
u_int io_apic_read __P((int, int));
void io_apic_write __P((int, int, u_int));
/* global data in mp_machdep.c */
extern int bsp_apic_ready;
extern int mp_ncpus;
@ -146,6 +142,9 @@ int ext_int_setup __P((int, int));
void set_apic_timer __P((int));
int read_apic_timer __P((void));
void u_sleep __P((int));
u_int io_apic_read __P((int, int));
void io_apic_write __P((int, int, u_int));
/* global data in init_smp.c */
extern int invltlb_ok;

29
sys/i386/isa/apic_ipl.s
View File

@ -130,32 +130,3 @@ ENTRY(INTRDIS)
IMASK_UNLOCK /* exit critical reg */
popfl /* restore old state of EI flag */
ret
/******************************************************************************
*
*/
/*
* u_int io_apic_write(int apic, int select);
*/
ENTRY(io_apic_read)
movl 4(%esp), %ecx /* APIC # */
movl _ioapic, %eax
movl (%eax,%ecx,4), %edx /* APIC base register address */
movl 8(%esp), %eax /* target register index */
movl %eax, (%edx) /* write the target register index */
movl 16(%edx), %eax /* read the APIC register data */
ret /* %eax = register value */
/*
* void io_apic_write(int apic, int select, int value);
*/
ENTRY(io_apic_write)
movl 4(%esp), %ecx /* APIC # */
movl _ioapic, %eax
movl (%eax,%ecx,4), %edx /* APIC base register address */
movl 8(%esp), %eax /* target register index */
movl %eax, (%edx) /* write the target register index */
movl 12(%esp), %eax /* target register value */
movl %eax, 16(%edx) /* write the APIC register data */
ret /* %eax = void */

7
sys/sys/smp.h
View File

@ -58,10 +58,6 @@ extern volatile u_int checkstate_need_ast;
extern volatile u_int resched_cpus;
extern void (*cpustop_restartfunc) __P((void));
/* functions in apic_ipl.s */
u_int io_apic_read __P((int, int));
void io_apic_write __P((int, int, u_int));
/* global data in mp_machdep.c */
extern int bsp_apic_ready;
extern int mp_ncpus;
@ -146,6 +142,9 @@ int ext_int_setup __P((int, int));
void set_apic_timer __P((int));
int read_apic_timer __P((void));
void u_sleep __P((int));
u_int io_apic_read __P((int, int));
void io_apic_write __P((int, int, u_int));
/* global data in init_smp.c */
extern int invltlb_ok;