Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / sparc / include / asm / ebus_dma.h

diff --git a/kernel/arch/sparc/include/asm/ebus_dma.h b/kernel/arch/sparc/include/asm/ebus_dma.h
new file mode 100644 (file)
index 0000000..fcfb494
--- /dev/null
+++ b/kernel/arch/sparc/include/asm/ebus_dma.h
@@ -0,0 +1,35 @@
+#ifndef __ASM_SPARC_EBUS_DMA_H
+#define __ASM_SPARC_EBUS_DMA_H
+
+struct ebus_dma_info {
+       spinlock_t      lock;
+       void __iomem    *regs;
+
+       unsigned int    flags;
+#define EBUS_DMA_FLAG_USE_EBDMA_HANDLER                0x00000001
+#define EBUS_DMA_FLAG_TCI_DISABLE              0x00000002
+
+       /* These are only valid is EBUS_DMA_FLAG_USE_EBDMA_HANDLER is
+        * set.
+        */
+       void (*callback)(struct ebus_dma_info *p, int event, void *cookie);
+       void *client_cookie;
+       unsigned int    irq;
+#define EBUS_DMA_EVENT_ERROR   1
+#define EBUS_DMA_EVENT_DMA     2
+#define EBUS_DMA_EVENT_DEVICE  4
+
+       unsigned char   name[64];
+};
+
+int ebus_dma_register(struct ebus_dma_info *p);
+int ebus_dma_irq_enable(struct ebus_dma_info *p, int on);
+void ebus_dma_unregister(struct ebus_dma_info *p);
+int ebus_dma_request(struct ebus_dma_info *p, dma_addr_t bus_addr,
+                           size_t len);
+void ebus_dma_prepare(struct ebus_dma_info *p, int write);
+unsigned int ebus_dma_residue(struct ebus_dma_info *p);
+unsigned int ebus_dma_addr(struct ebus_dma_info *p);
+void ebus_dma_enable(struct ebus_dma_info *p, int on);
+
+#endif /* __ASM_SPARC_EBUS_DMA_H */