auto import from //depot/cupcake/@135843

1 files changed, 48 insertions, 0 deletions

diff --git a/libc/kernel/common/linux/dma-mapping.h b/libc/kernel/common/linux/dma-mapping.h
new file mode 100644
index 0000000..6432259
--- /dev/null
+++ b/libc/kernel/common/linux/dma-mapping.h
@@ -0,0 +1,48 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _ASM_LINUX_DMA_MAPPING_H
+#define _ASM_LINUX_DMA_MAPPING_H
+
+#include <linux/device.h>
+#include <linux/err.h>
+
+enum dma_data_direction {
+ DMA_BIDIRECTIONAL = 0,
+ DMA_TO_DEVICE = 1,
+ DMA_FROM_DEVICE = 2,
+ DMA_NONE = 3,
+};
+
+#define DMA_64BIT_MASK 0xffffffffffffffffULL
+#define DMA_48BIT_MASK 0x0000ffffffffffffULL
+#define DMA_40BIT_MASK 0x000000ffffffffffULL
+#define DMA_39BIT_MASK 0x0000007fffffffffULL
+#define DMA_32BIT_MASK 0x00000000ffffffffULL
+#define DMA_31BIT_MASK 0x000000007fffffffULL
+#define DMA_30BIT_MASK 0x000000003fffffffULL
+#define DMA_29BIT_MASK 0x000000001fffffffULL
+#define DMA_28BIT_MASK 0x000000000fffffffULL
+#define DMA_24BIT_MASK 0x0000000000ffffffULL
+
+#include <asm/dma-mapping.h>
+
+#define dma_sync_single dma_sync_single_for_cpu
+#define dma_sync_sg dma_sync_sg_for_cpu
+
+#define DMA_MEMORY_MAP 0x01
+#define DMA_MEMORY_IO 0x02
+#define DMA_MEMORY_INCLUDES_CHILDREN 0x04
+#define DMA_MEMORY_EXCLUSIVE 0x08
+
+#ifndef ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+#endif
+#endif