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https://github.com/freebsd/freebsd-src
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apic_vector.s:
- added Xcpustop IPI code to support stop_cpus()/restart_cpus(). it is off by default, enable via smptests.h:TEST_CPUSTOP intr_machdep.h: - moved +ICULEN to lower level. - added entry for Xcpustop.
This commit is contained in:
Steve Passe
parent
31d3baa2e0
commit
58db75841d
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=27007
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@ -1,9 +1,11 @@
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/*
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* from: vector.s, 386BSD 0.1 unknown origin
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* $Id: apic_vector.s,v 1.2 1997/05/31 08:59:51 peter Exp $
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* $Id: apic_vector.s,v 1.1 1997/06/26 17:52:12 smp Exp smp $
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*/
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#include <machine/smptests.h> /** TEST_CPUSTOP */
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/* convert an absolute IRQ# into a bitmask */
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#define IRQ_BIT(irq_num) (1 << (irq_num))
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@ -178,6 +180,69 @@ _Xinvltlb:
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popl %eax
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iret
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#ifdef TEST_CPUSTOP
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/*
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* Executed by a CPU when it receives an Xcpustop IPI from another CPU,
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*
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* - Signals its receipt.
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* - Waits for permission to restart.
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* - Signals its restart.
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*/
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.text
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SUPERALIGN_TEXT
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.globl _Xcpustop
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_Xcpustop:
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pushl %eax
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pushl %ds /* save current data segment */
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#ifdef DEBUG_CPUSTOP
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movb $0x50, %al
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outb %al, $POST_ADDR
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#endif
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movl $KDSEL, %eax
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movl %ax, %ds /* use KERNEL data segment */
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movl _cpuid, %eax /* id */
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lock
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btsl %eax, _stopped_cpus /* stopped_cpus |= (1<<id) */
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#ifdef DEBUG_CPUSTOP
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movb $0x51, %al
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outb %al, $POST_ADDR
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movl _cpuid, %eax /* RESTORE id */
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#endif
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1:
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btl %eax, _started_cpus /* while (!(started_cpus & (1<<id))) */
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jnc 1b
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#ifdef DEBUG_CPUSTOP
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movb $0x52, %al
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outb %al, $POST_ADDR
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movl _cpuid, %eax /* RESTORE id */
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#endif
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lock
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btrl %eax, _started_cpus /* started_cpus &= ~(1<<id) */
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#ifdef DEBUG_CPUSTOP
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movb $0x53, %al
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outb %al, $POST_ADDR
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#endif
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movl $lapic_eoi, %eax
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movl $0, (%eax) /* End Of Interrupt to APIC */
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popl %ds /* restore previous data segment */
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popl %eax
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iret
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#endif /* TEST_CPUSTOP */
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MCOUNT_LABEL(bintr)
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FAST_INTR(0,fastintr0)
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FAST_INTR(1,fastintr1)
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@ -262,6 +327,16 @@ _ivectors:
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iactive:
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.long 0
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#ifdef TEST_CPUSTOP
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.globl _stopped_cpus
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_stopped_cpus:
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.long 0
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.globl _started_cpus
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_started_cpus:
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.long 0
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#endif /* TEST_CPUSTOP */
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/*
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* Interrupt counters and names. The format of these and the label names
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)isa_device.h 7.1 (Berkeley) 5/9/91
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* $Id: isa_device.h,v 1.39 1997/04/27 21:18:58 fsmp Exp $
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* $Id: intr_machdep.h,v 1.1 1997/06/26 17:31:00 smp Exp smp $
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*/
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#ifndef _I386_ISA_INTR_MACHDEP_H_
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@ -82,10 +82,17 @@ inthand_t
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inthand_t
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IDTVEC(intr16), IDTVEC(intr17), IDTVEC(intr18), IDTVEC(intr19),
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IDTVEC(intr20), IDTVEC(intr21), IDTVEC(intr22), IDTVEC(intr23);
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#define XINVLTLB_OFFSET 32
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#define XINVLTLB_OFFSET (ICU_OFFSET + 32)
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inthand_t
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Xinvltlb;
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#if defined(TEST_CPUSTOP)
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#define XCPUSTOP_OFFSET (ICU_OFFSET + 64)
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inthand_t
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Xcpustop;
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#endif /* TEST_CPUSTOP */
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struct isa_device;
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void isa_defaultirq __P((void));
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@ -1,9 +1,11 @@
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/*
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* from: vector.s, 386BSD 0.1 unknown origin
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* $Id: apic_vector.s,v 1.2 1997/05/31 08:59:51 peter Exp $
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* $Id: apic_vector.s,v 1.1 1997/06/26 17:52:12 smp Exp smp $
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*/
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#include <machine/smptests.h> /** TEST_CPUSTOP */
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/* convert an absolute IRQ# into a bitmask */
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#define IRQ_BIT(irq_num) (1 << (irq_num))
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@ -178,6 +180,69 @@ _Xinvltlb:
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popl %eax
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iret
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#ifdef TEST_CPUSTOP
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/*
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* Executed by a CPU when it receives an Xcpustop IPI from another CPU,
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*
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* - Signals its receipt.
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* - Waits for permission to restart.
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* - Signals its restart.
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*/
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.text
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SUPERALIGN_TEXT
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.globl _Xcpustop
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_Xcpustop:
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pushl %eax
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pushl %ds /* save current data segment */
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#ifdef DEBUG_CPUSTOP
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movb $0x50, %al
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outb %al, $POST_ADDR
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#endif
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movl $KDSEL, %eax
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movl %ax, %ds /* use KERNEL data segment */
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movl _cpuid, %eax /* id */
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lock
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btsl %eax, _stopped_cpus /* stopped_cpus |= (1<<id) */
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#ifdef DEBUG_CPUSTOP
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movb $0x51, %al
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outb %al, $POST_ADDR
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movl _cpuid, %eax /* RESTORE id */
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#endif
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1:
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btl %eax, _started_cpus /* while (!(started_cpus & (1<<id))) */
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jnc 1b
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#ifdef DEBUG_CPUSTOP
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movb $0x52, %al
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outb %al, $POST_ADDR
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movl _cpuid, %eax /* RESTORE id */
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#endif
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lock
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btrl %eax, _started_cpus /* started_cpus &= ~(1<<id) */
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#ifdef DEBUG_CPUSTOP
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movb $0x53, %al
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outb %al, $POST_ADDR
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#endif
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movl $lapic_eoi, %eax
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movl $0, (%eax) /* End Of Interrupt to APIC */
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popl %ds /* restore previous data segment */
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popl %eax
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iret
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#endif /* TEST_CPUSTOP */
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MCOUNT_LABEL(bintr)
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FAST_INTR(0,fastintr0)
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FAST_INTR(1,fastintr1)
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@ -262,6 +327,16 @@ _ivectors:
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iactive:
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.long 0
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#ifdef TEST_CPUSTOP
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.globl _stopped_cpus
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_stopped_cpus:
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.long 0
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.globl _started_cpus
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_started_cpus:
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.long 0
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#endif /* TEST_CPUSTOP */
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/*
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* Interrupt counters and names. The format of these and the label names
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@ -1,9 +1,11 @@
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/*
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* from: vector.s, 386BSD 0.1 unknown origin
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* $Id: apic_vector.s,v 1.2 1997/05/31 08:59:51 peter Exp $
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* $Id: apic_vector.s,v 1.1 1997/06/26 17:52:12 smp Exp smp $
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*/
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#include <machine/smptests.h> /** TEST_CPUSTOP */
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/* convert an absolute IRQ# into a bitmask */
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#define IRQ_BIT(irq_num) (1 << (irq_num))
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@ -178,6 +180,69 @@ _Xinvltlb:
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popl %eax
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iret
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#ifdef TEST_CPUSTOP
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/*
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* Executed by a CPU when it receives an Xcpustop IPI from another CPU,
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*
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* - Signals its receipt.
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* - Waits for permission to restart.
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* - Signals its restart.
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*/
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.text
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SUPERALIGN_TEXT
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.globl _Xcpustop
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_Xcpustop:
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pushl %eax
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pushl %ds /* save current data segment */
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#ifdef DEBUG_CPUSTOP
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movb $0x50, %al
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outb %al, $POST_ADDR
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#endif
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movl $KDSEL, %eax
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movl %ax, %ds /* use KERNEL data segment */
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movl _cpuid, %eax /* id */
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lock
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btsl %eax, _stopped_cpus /* stopped_cpus |= (1<<id) */
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#ifdef DEBUG_CPUSTOP
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movb $0x51, %al
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outb %al, $POST_ADDR
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movl _cpuid, %eax /* RESTORE id */
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#endif
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1:
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btl %eax, _started_cpus /* while (!(started_cpus & (1<<id))) */
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jnc 1b
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#ifdef DEBUG_CPUSTOP
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movb $0x52, %al
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outb %al, $POST_ADDR
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movl _cpuid, %eax /* RESTORE id */
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#endif
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lock
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btrl %eax, _started_cpus /* started_cpus &= ~(1<<id) */
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#ifdef DEBUG_CPUSTOP
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movb $0x53, %al
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outb %al, $POST_ADDR
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#endif
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movl $lapic_eoi, %eax
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movl $0, (%eax) /* End Of Interrupt to APIC */
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popl %ds /* restore previous data segment */
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popl %eax
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iret
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#endif /* TEST_CPUSTOP */
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MCOUNT_LABEL(bintr)
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FAST_INTR(0,fastintr0)
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FAST_INTR(1,fastintr1)
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@ -262,6 +327,16 @@ _ivectors:
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iactive:
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.long 0
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#ifdef TEST_CPUSTOP
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.globl _stopped_cpus
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_stopped_cpus:
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.long 0
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.globl _started_cpus
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_started_cpus:
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.long 0
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#endif /* TEST_CPUSTOP */
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/*
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* Interrupt counters and names. The format of these and the label names
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@ -31,7 +31,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)isa_device.h 7.1 (Berkeley) 5/9/91
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* $Id: isa_device.h,v 1.39 1997/04/27 21:18:58 fsmp Exp $
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* $Id: intr_machdep.h,v 1.1 1997/06/26 17:31:00 smp Exp smp $
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*/
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#ifndef _I386_ISA_INTR_MACHDEP_H_
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@ -82,10 +82,17 @@ inthand_t
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inthand_t
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IDTVEC(intr16), IDTVEC(intr17), IDTVEC(intr18), IDTVEC(intr19),
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IDTVEC(intr20), IDTVEC(intr21), IDTVEC(intr22), IDTVEC(intr23);
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#define XINVLTLB_OFFSET 32
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#define XINVLTLB_OFFSET (ICU_OFFSET + 32)
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inthand_t
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Xinvltlb;
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#if defined(TEST_CPUSTOP)
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#define XCPUSTOP_OFFSET (ICU_OFFSET + 64)
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inthand_t
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Xcpustop;
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#endif /* TEST_CPUSTOP */
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struct isa_device;
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void isa_defaultirq __P((void));
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