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Grammar and typo fixes.

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Submitted by:	alc
MFC after:	20 days
This commit is contained in:
Konstantin Belousov 2020-07-15 09:48:36 +00:00
parent 7477442fdd
commit a64fab1dd1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=363211
1 changed files with 6 additions and 6 deletions
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12
sys/amd64/amd64/mp_machdep.c
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@ -203,7 +203,7 @@ cpu_mp_start(void)
cpu_apic_ids[i] = -1; cpu_apic_ids[i] = -1;
} }
/* Install an inter-CPU IPI for for cache and TLB invalidations. */ /* Install an inter-CPU IPI for cache and TLB invalidations. */
setidt(IPI_INVLOP, pti ? IDTVEC(invlop_pti) : IDTVEC(invlop), setidt(IPI_INVLOP, pti ? IDTVEC(invlop_pti) : IDTVEC(invlop),
SDT_SYSIGT, SEL_KPL, 0); SDT_SYSIGT, SEL_KPL, 0);
@ -557,7 +557,7 @@ static enum invl_op_codes invl_op_pg;
* at location (cpu, my_cpuid) for each target cpu. After that IPI is * at location (cpu, my_cpuid) for each target cpu. After that IPI is
* sent to all targets which scan for zeroed scoreboard generation * sent to all targets which scan for zeroed scoreboard generation
* words. Upon finding such word the shootdown data is read from * words. Upon finding such word the shootdown data is read from
* corresponding cpu' pcpu, and generation is set. Meantime initiator * corresponding cpu's pcpu, and generation is set. Meantime initiator
* loops waiting for all zeroed generations in scoreboard to update. * loops waiting for all zeroed generations in scoreboard to update.
*/ */
static uint32_t *invl_scoreboard; static uint32_t *invl_scoreboard;
@ -654,8 +654,8 @@ smp_targeted_tlb_shootdown(cpuset_t mask, pmap_t pmap, vm_offset_t addr1,
/* /*
* Initiator must have interrupts enabled, which prevents * Initiator must have interrupts enabled, which prevents
* non-invalidation IPIs, that takes smp_ipi_mtx spinlock, * non-invalidation IPIs that take smp_ipi_mtx spinlock,
* from deadlocking with as. On the other hand, preemption * from deadlocking with us. On the other hand, preemption
* must be disabled to pin initiator to the instance of the * must be disabled to pin initiator to the instance of the
* pcpu pc_smp_tlb data and scoreboard line. * pcpu pc_smp_tlb data and scoreboard line.
*/ */
@ -687,7 +687,7 @@ smp_targeted_tlb_shootdown(cpuset_t mask, pmap_t pmap, vm_offset_t addr1,
/* /*
* IPI acts as a fence between writing to the scoreboard above * IPI acts as a fence between writing to the scoreboard above
* (zeroing slot) and reading from it below (wait for * (zeroing slot) and reading from it below (wait for
* acknowledge). * acknowledgment).
*/ */
if (CPU_ISFULLSET(&mask)) { if (CPU_ISFULLSET(&mask)) {
ipi_all_but_self(IPI_INVLOP); ipi_all_but_self(IPI_INVLOP);
@ -1080,7 +1080,7 @@ invlop_handler(void)
/* /*
* This acquire fence and its corresponding release * This acquire fence and its corresponding release
* fence in smp_targeted_tlb_shootdown(), is between * fence in smp_targeted_tlb_shootdown() is between
* reading zero scoreboard slot and accessing PCPU of * reading zero scoreboard slot and accessing PCPU of
* initiator for pc_smp_tlb values. * initiator for pc_smp_tlb values.
*/ */