Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'x86_mm_for_6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm update from Dave Hansen:
"A single change to remove an open-coded TLB flush operation by using
an existing helper. This came out of Rik van Riel's work to get the
INVLPGB instruction working.
- Change cpa_flush() to call flush_kernel_range() directly"
* tag 'x86_mm_for_6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Change cpa_flush() to call flush_kernel_range() directly
+7
-13
+7
-13
arch/x86/mm/pat/set_memory.c
+7
-13
arch/x86/mm/pat/set_memory.c
···
399
399
on_each_cpu(__cpa_flush_all, (void *) cache, 1);
400
400
}
401
401
402
-
static void __cpa_flush_tlb(void *data)
403
-
{
404
-
struct cpa_data *cpa = data;
405
-
unsigned int i;
406
-
407
-
for (i = 0; i < cpa->numpages; i++)
408
-
flush_tlb_one_kernel(fix_addr(__cpa_addr(cpa, i)));
409
-
}
410
-
411
402
static int collapse_large_pages(unsigned long addr, struct list_head *pgtables);
412
403
413
404
static void cpa_collapse_large_pages(struct cpa_data *cpa)
···
435
444
436
445
static void cpa_flush(struct cpa_data *cpa, int cache)
437
446
{
447
+
unsigned long start, end;
438
448
unsigned int i;
439
449
440
450
BUG_ON(irqs_disabled() && !early_boot_irqs_disabled);
···
445
453
goto collapse_large_pages;
446
454
}
447
455
448
-
if (cpa->force_flush_all || cpa->numpages > tlb_single_page_flush_ceiling)
449
-
flush_tlb_all();
450
-
else
451
-
on_each_cpu(__cpa_flush_tlb, cpa, 1);
456
+
start = fix_addr(__cpa_addr(cpa, 0));
457
+
end = fix_addr(__cpa_addr(cpa, cpa->numpages));
458
+
if (cpa->force_flush_all)
459
+
end = TLB_FLUSH_ALL;
460
+
461
+
flush_tlb_kernel_range(start, end);
452
462
453
463
if (!cache)
454
464
goto collapse_large_pages;