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path: root/drivers/dma/ioatdma.h
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Diffstat (limited to 'drivers/dma/ioatdma.h')
-rw-r--r--drivers/dma/ioatdma.h20
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/dma/ioatdma.h b/drivers/dma/ioatdma.h
index bf4dad70e0f5..0b8ffbde1e61 100644
--- a/drivers/dma/ioatdma.h
+++ b/drivers/dma/ioatdma.h
@@ -31,22 +31,21 @@
#define IOAT_LOW_COMPLETION_MASK 0xffffffc0
/**
- * struct ioat_device - internal representation of a IOAT device
+ * struct ioatdma_device - internal representation of a IOAT device
* @pdev: PCI-Express device
* @reg_base: MMIO register space base address
* @dma_pool: for allocating DMA descriptors
* @common: embedded struct dma_device
- * @msi: Message Signaled Interrupt number
+ * @version: version of ioatdma device
*/
-struct ioat_device {
+struct ioatdma_device {
struct pci_dev *pdev;
void __iomem *reg_base;
struct pci_pool *dma_pool;
struct pci_pool *completion_pool;
-
struct dma_device common;
- u8 msi;
+ u8 version;
};
/**
@@ -84,7 +83,7 @@ struct ioat_dma_chan {
int pending;
- struct ioat_device *device;
+ struct ioatdma_device *device;
struct dma_chan common;
dma_addr_t completion_addr;
@@ -117,4 +116,13 @@ struct ioat_desc_sw {
struct dma_async_tx_descriptor async_tx;
};
+#if defined(CONFIG_INTEL_IOATDMA) || defined(CONFIG_INTEL_IOATDMA_MODULE)
+struct ioatdma_device *ioat_dma_probe(struct pci_dev *pdev,
+ void __iomem *iobase);
+void ioat_dma_remove(struct ioatdma_device *device);
+#else
+#define ioat_dma_probe(pdev, iobase) NULL
+#define ioat_dma_remove(device) do { } while (0)
+#endif
+
#endif /* IOATDMA_H */