Merge branch 'master' into openslxopenslx

1 files changed, 45 insertions, 0 deletions

diff --git a/src/arch/riscv/include/ipxe/riscv_dma.h b/src/arch/riscv/include/ipxe/riscv_dma.h
new file mode 100644
index 000000000..d35904d88
--- /dev/null
+++ b/src/arch/riscv/include/ipxe/riscv_dma.h
@@ -0,0 +1,45 @@
+#ifndef _IPXE_RISCV_DMA_H
+#define _IPXE_RISCV_DMA_H
+
+/** @file
+ *
+ * iPXE DMA API for RISC-V
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+
+#ifdef DMAAPI_RISCV
+#define DMAAPI_PREFIX_riscv
+#else
+#define DMAAPI_PREFIX_riscv __riscv_
+#endif
+
+/**
+ * Set addressable space mask
+ *
+ * @v dma		DMA device
+ * @v mask		Addressable space mask
+ */
+static inline __always_inline void
+DMAAPI_INLINE ( riscv, dma_set_mask ) ( struct dma_device *dma __unused,
+					physaddr_t mask __unused ) {
+
+	/* Nothing to do */
+}
+
+/**
+ * Get DMA address from virtual address
+ *
+ * @v map		DMA mapping
+ * @v addr		Address within the mapped region
+ * @ret addr		Device-side DMA address
+ */
+static inline __always_inline physaddr_t
+DMAAPI_INLINE ( riscv, dma ) ( struct dma_mapping *map __unused, void *addr ) {
+
+	/* Use physical address as device address */
+	return virt_to_phys ( addr );
+}
+
+#endif /* _IPXE_RISCV_DMA_H */