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mei: hw: add dma ring control block

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The DMA ring control block contains write and read
indices for host and device circular buffers.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler
2018-11-22 13:11:38 +02:00
committed by Greg Kroah-Hartman
parent c55bf542e9
commit 2513eb0dd7
4 changed files with 46 additions and 0 deletions
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1
drivers/misc/mei/mei_dev.h
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@@ -597,6 +597,7 @@ void mei_cancel_work(struct mei_device *dev);
int mei_dmam_ring_alloc(struct mei_device *dev);
void mei_dmam_ring_free(struct mei_device *dev);
bool mei_dma_ring_is_allocated(struct mei_device *dev);
void mei_dma_ring_reset(struct mei_device *dev);
/*
* MEI interrupt functions prototype