diff options
| author | Nick Ewalt | 2018-09-17 14:38:59 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2018-09-18 13:22:01 +0200 |
| commit | 912b8a811cc1bf26334840e9f532136072569b17 (patch) | |
| tree | af15f471d83c8f69f7cb7867a601f3c8af65b78b /drivers/staging/gasket | |
| parent | staging: gasket: page table: use GFP_KERNEL for dma_alloc_coherent (diff) | |
| download | kernel-qcow2-linux-912b8a811cc1bf26334840e9f532136072569b17.tar.gz kernel-qcow2-linux-912b8a811cc1bf26334840e9f532136072569b17.tar.xz kernel-qcow2-linux-912b8a811cc1bf26334840e9f532136072569b17.zip | |
staging: gasket: fix DMA direction for extended page tables
Extended page tables should be mapped as DMA_TO_DEVICE, not
bi-directional.
Signed-off-by: Nick Ewalt <nicholasewalt@google.com>
Signed-off-by: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/gasket')
| -rw-r--r-- | drivers/staging/gasket/gasket_page_table.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/gasket/gasket_page_table.c b/drivers/staging/gasket/gasket_page_table.c index 71b77da2e18c..e86bdc5fc79d 100644 --- a/drivers/staging/gasket/gasket_page_table.c +++ b/drivers/staging/gasket/gasket_page_table.c @@ -320,7 +320,7 @@ static void gasket_free_extended_subtable(struct gasket_page_table *pg_tbl, if (pte->dma_addr) dma_unmap_page(pg_tbl->device, pte->dma_addr, PAGE_SIZE, - DMA_BIDIRECTIONAL); + DMA_TO_DEVICE); vfree(pte->sublevel); @@ -894,7 +894,7 @@ static int gasket_alloc_extended_subtable(struct gasket_page_table *pg_tbl, /* Map the page into DMA space. */ pte->dma_addr = dma_map_page(pg_tbl->device, pte->page, 0, PAGE_SIZE, - DMA_BIDIRECTIONAL); + DMA_TO_DEVICE); /* make the addresses available to the device */ dma_addr = (pte->dma_addr + pte->offset) | GASKET_VALID_SLOT_FLAG; |