MIPS: Adjust the dma-common.c platform hooks.
We add a dev parameter to plat_unmap_dma_mem(), and hooks for
plat_dma_supported() and plat_extra_sync_for_device() which should be
nop changes for all existing targets.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/include/asm/mach-lemote/dma-coherence.h b/arch/mips/include/asm/mach-lemote/dma-coherence.h
index 7e91477..38fad7d 100644
--- a/arch/mips/include/asm/mach-lemote/dma-coherence.h
+++ b/arch/mips/include/asm/mach-lemote/dma-coherence.h
@@ -30,10 +30,34 @@
return dma_addr & 0x7fffffff;
}
-static inline void plat_unmap_dma_mem(dma_addr_t dma_addr)
+static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr)
{
}
+static inline int plat_dma_supported(struct device *dev, u64 mask)
+{
+ /*
+ * we fall back to GFP_DMA when the mask isn't all 1s,
+ * so we can't guarantee allocations that must be
+ * within a tighter range than GFP_DMA..
+ */
+ if (mask < DMA_BIT_MASK(24))
+ return 0;
+
+ return 1;
+}
+
+static inline void plat_extra_sync_for_device(struct device *dev)
+{
+ return;
+}
+
+static inline int plat_dma_mapping_error(struct device *dev,
+ dma_addr_t dma_addr)
+{
+ return 0;
+}
+
static inline int plat_device_is_coherent(struct device *dev)
{
return 0;