1 files changed, 40 insertions, 0 deletions
diff --git a/include/linux/goldfish.h b/include/linux/goldfish.h
new file mode 100644
index 000000000..bcc17f95b
--- /dev/null
+++ b/include/linux/goldfish.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_GOLDFISH_H
+#define __LINUX_GOLDFISH_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/io.h>
+
+/* Helpers for Goldfish virtual platform */
+
+#ifndef gf_ioread32
+#define gf_ioread32 ioread32
+#endif
+#ifndef gf_iowrite32
+#define gf_iowrite32 iowrite32
+#endif
+
+static inline void gf_write_ptr(const void *ptr, void __iomem *portl,
+				void __iomem *porth)
+{
+	const unsigned long addr = (unsigned long)ptr;
+
+	gf_iowrite32(lower_32_bits(addr), portl);
+#ifdef CONFIG_64BIT
+	gf_iowrite32(upper_32_bits(addr), porth);
+#endif
+}
+
+static inline void gf_write_dma_addr(const dma_addr_t addr,
+				     void __iomem *portl,
+				     void __iomem *porth)
+{
+	gf_iowrite32(lower_32_bits(addr), portl);
+#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+	gf_iowrite32(upper_32_bits(addr), porth);
+#endif
+}
+
+
+#endif /* __LINUX_GOLDFISH_H */