| Message ID | 20161102111452.79519.97790.stgit@ahduyck-blue-test.jf.intel.com |
|---|---|
| State | Not Applicable, archived |
| Delegated to: | David Miller |
| Headers | show |
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c index 140c991..906998b 100644 --- a/arch/openrisc/kernel/dma.c +++ b/arch/openrisc/kernel/dma.c @@ -141,6 +141,9 @@ unsigned long cl; dma_addr_t addr = page_to_phys(page) + offset; + if (attrs & DMA_ATTR_SKIP_CPU_SYNC) + return addr; + switch (dir) { case DMA_TO_DEVICE: /* Flush the dcache for the requested range */
This change allows us to pass DMA_ATTR_SKIP_CPU_SYNC which allows us to avoid invoking cache line invalidation if the driver will just handle it via a sync_for_cpu or sync_for_device call. Cc: Jonas Bonn <jonas@southpole.se> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> --- arch/openrisc/kernel/dma.c | 3 +++ 1 file changed, 3 insertions(+)