Grammar and typo fixes.
Submitted by: alc MFC after: 20 days
This commit is contained in:
parent
7477442fdd
commit
a64fab1dd1
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=363211
@ -203,7 +203,7 @@ cpu_mp_start(void)
|
||||
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),
|
||||
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
|
||||
* sent to all targets which scan for zeroed scoreboard generation
|
||||
* 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.
|
||||
*/
|
||||
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
|
||||
* non-invalidation IPIs, that takes smp_ipi_mtx spinlock,
|
||||
* from deadlocking with as. On the other hand, preemption
|
||||
* non-invalidation IPIs that take smp_ipi_mtx spinlock,
|
||||
* from deadlocking with us. On the other hand, preemption
|
||||
* must be disabled to pin initiator to the instance of the
|
||||
* 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
|
||||
* (zeroing slot) and reading from it below (wait for
|
||||
* acknowledge).
|
||||
* acknowledgment).
|
||||
*/
|
||||
if (CPU_ISFULLSET(&mask)) {
|
||||
ipi_all_but_self(IPI_INVLOP);
|
||||
@ -1080,7 +1080,7 @@ invlop_handler(void)
|
||||
|
||||
/*
|
||||
* 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
|
||||
* initiator for pc_smp_tlb values.
|
||||
*/
|
||||
|
Loading…
Reference in New Issue
Block a user