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ihk_mc_map/unmap_virtual(): do proper TLB invalidation

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This commit is contained in:
Balazs Gerofi
2018-03-24 07:56:49 +09:00
parent 0f049c5ed7
commit 73731d2a0d
1 changed files with 4 additions and 5 deletions
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9
kernel/mem.c
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@ -1664,6 +1664,8 @@ void *ihk_mc_map_virtual(unsigned long phys, int npages,
ihk_pagealloc_free(vmap_allocator, virt_to_phys(p), npages);
return NULL;
}
flush_tlb_single((unsigned long)(p + (i << PAGE_SHIFT)));
}
barrier();
return (char *)p + offset;
@ -1676,17 +1678,14 @@ void ihk_mc_unmap_virtual(void *va, int npages, int free_physical)
va = (void *)((unsigned long)va & PAGE_MASK);
for (i = 0; i < npages; i++) {
ihk_mc_pt_clear_page(NULL, (char *)va + (i << PAGE_SHIFT));
flush_tlb_single((unsigned long)(va + (i << PAGE_SHIFT)));
}
#ifdef POSTK_DEBUG_TEMP_FIX_42 /* add unmap virtual tlb flush. */
flush_tlb();
#endif /* POSTK_DEBUG_TEMP_FIX_42 */
#ifdef POSTK_DEBUG_TEMP_FIX_51 /* ihk_mc_unmap_virtual() free_physical disabled */
ihk_pagealloc_free(vmap_allocator, (unsigned long)va, npages);
#else /* POSTK_DEBUG_TEMP_FIX_51 */
if (free_physical) {
ihk_pagealloc_free(vmap_allocator, (unsigned long)va, npages);
flush_tlb_single((unsigned long)va);
}
#endif /* POSTK_DEBUG_TEMP_FIX_51 */
}