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Commit 5b15694b authored by Shiraz Hashim's avatar Shiraz Hashim Committed by Patrick Daly
Browse files

iommu/io-pgtable-fast: cache clean the last level ptes 



While preparing page tables for fastmap, last level ptes
are not being cache cleaned. Fix this.

Change-Id: I97f894b52484d0d223b15090b94c186bba9af734
Signed-off-by: default avatarShiraz Hashim <shashim@codeaurora.org>
parent 9c79f38b

drivers/iommu/io-pgtable-fast.c

+5 −0
Original line number Diff line number Diff line
@@ -395,11 +395,16 @@ av8l_fast_prepopulate_pgtables(struct av8l_fast_io_pgtable *data, 
	for (i = 0; i < 4; ++i) {

		for (j = 0; j < 512; ++j) {

			av8l_fast_iopte pte, *pudp;

			void *addr;



			page = alloc_page(GFP_KERNEL | __GFP_ZERO);

			if (!page)

				goto err_free_pages;

			pages[pg++] = page;



			addr = page_address(page);

			dmac_clean_range(addr, addr + SZ_4K);



			pte = page_to_phys(page) | AV8L_FAST_PTE_TYPE_TABLE;

			pudp = data->puds[i] + j;

			*pudp = pte;