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| author | Shiraz Hashim <shashim@codeaurora.org> | 2017-03-01 14:40:16 +0530 |
|---|---|---|
| committer | Shiraz Hashim <shashim@codeaurora.org> | 2017-03-01 14:45:40 +0530 |
| commit | 847210ab6b76d2ba65b767836772d5a7c839b4da (patch) | |
| tree | b9ba5443e211ea8bb2ea1d86410ea3b7d8be30e9 | |
| parent | 2e87440c3e6fbc711714d1109818f8e3c0f1d2a7 (diff) | |
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: Shiraz Hashim <shashim@codeaurora.org>
| -rw-r--r-- | drivers/iommu/io-pgtable-fast.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/iommu/io-pgtable-fast.c b/drivers/iommu/io-pgtable-fast.c index 603b983d1916..3582e206db68 100644 --- a/drivers/iommu/io-pgtable-fast.c +++ b/drivers/iommu/io-pgtable-fast.c @@ -426,11 +426,16 @@ av8l_fast_prepopulate_pgtables(struct av8l_fast_io_pgtable *data, for (j = pmd_index(pud), pmd = pud; pmd < pud_next(pud, end); ++j, pmd = pmd_next(pmd, end)) { 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; |