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Code Issues Releases Activity

amd64: remove useless addr2 variables in page range invalidation handlers

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Reviewed by:	alc, markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D36919
This commit is contained in:
Konstantin Belousov 2022-10-08 11:33:11 +03:00
parent 67f2a563bf
commit 273d0715f6
1 changed files with 8 additions and 11 deletions
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19
sys/amd64/amd64/mp_machdep.c
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@ -903,7 +903,7 @@ invlpg_pcid_handler(pmap_t smp_tlb_pmap, vm_offset_t smp_tlb_addr1)
static void
invlrng_handler(vm_offset_t smp_tlb_addr1, vm_offset_t smp_tlb_addr2)
{
vm_offset_t addr, addr2;
vm_offset_t addr;
#ifdef COUNT_XINVLTLB_HITS
xhits_rng[PCPU_GET(cpuid)]++;
@ -913,11 +913,10 @@ invlrng_handler(vm_offset_t smp_tlb_addr1, vm_offset_t smp_tlb_addr2)
#endif /* COUNT_IPIS */
addr = smp_tlb_addr1;
addr2 = smp_tlb_addr2;
do {
invlpg(addr);
addr += PAGE_SIZE;
} while (addr < addr2);
} while (addr < smp_tlb_addr2);
}
static void
@ -925,7 +924,7 @@ invlrng_invpcid_handler(pmap_t smp_tlb_pmap, vm_offset_t smp_tlb_addr1,
vm_offset_t smp_tlb_addr2)
{
struct invpcid_descr d;
vm_offset_t addr, addr2;
vm_offset_t addr;
#ifdef COUNT_XINVLTLB_HITS
xhits_rng[PCPU_GET(cpuid)]++;
@ -935,11 +934,10 @@ invlrng_invpcid_handler(pmap_t smp_tlb_pmap, vm_offset_t smp_tlb_addr1,
#endif /* COUNT_IPIS */
addr = smp_tlb_addr1;
addr2 = smp_tlb_addr2;
do {
invlpg(addr);
addr += PAGE_SIZE;
} while (addr < addr2);
} while (addr < smp_tlb_addr2);
if (smp_tlb_pmap == PCPU_GET(curpmap) &&
smp_tlb_pmap->pm_ucr3 != PMAP_NO_CR3 &&
PCPU_GET(ucr3_load_mask) == PMAP_UCR3_NOMASK) {
@ -950,7 +948,7 @@ invlrng_invpcid_handler(pmap_t smp_tlb_pmap, vm_offset_t smp_tlb_addr1,
do {
invpcid(&d, INVPCID_ADDR);
d.addr += PAGE_SIZE;
} while (d.addr < addr2);
} while (d.addr < smp_tlb_addr2);
}
}
@ -958,7 +956,7 @@ static void
invlrng_pcid_handler(pmap_t smp_tlb_pmap, vm_offset_t smp_tlb_addr1,
vm_offset_t smp_tlb_addr2)
{
vm_offset_t addr, addr2;
vm_offset_t addr;
uint64_t kcr3, ucr3;
uint32_t pcid;
@ -970,18 +968,17 @@ invlrng_pcid_handler(pmap_t smp_tlb_pmap, vm_offset_t smp_tlb_addr1,
#endif /* COUNT_IPIS */
addr = smp_tlb_addr1;
addr2 = smp_tlb_addr2;
do {
invlpg(addr);
addr += PAGE_SIZE;
} while (addr < addr2);
} while (addr < smp_tlb_addr2);
if (smp_tlb_pmap == PCPU_GET(curpmap) &&
(ucr3 = smp_tlb_pmap->pm_ucr3) != PMAP_NO_CR3 &&
PCPU_GET(ucr3_load_mask) == PMAP_UCR3_NOMASK) {
pcid = smp_tlb_pmap->pm_pcids[PCPU_GET(cpuid)].pm_pcid;
kcr3 = smp_tlb_pmap->pm_cr3 | pcid | CR3_PCID_SAVE;
ucr3 |= pcid | PMAP_PCID_USER_PT | CR3_PCID_SAVE;
pmap_pti_pcid_invlrng(ucr3, kcr3, smp_tlb_addr1, addr2);
pmap_pti_pcid_invlrng(ucr3, kcr3, smp_tlb_addr1, smp_tlb_addr2);
}
}