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| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2021-02-06 16:43:24 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-06 15:48:11 +0100 |
| commit | 369aea84595189200a2e6b028f556a7efa0ec489 (patch) | |
| tree | e2ff0302ffdfd42be31883901a02fd83e9db623c /drivers/misc/mei/client.h | |
| parent | dfad8742a328598d52d8472ce34fac312f4a5acb (diff) | |
| download | linux-stable-369aea84595189200a2e6b028f556a7efa0ec489.tar.gz linux-stable-369aea84595189200a2e6b028f556a7efa0ec489.tar.bz2 linux-stable-369aea84595189200a2e6b028f556a7efa0ec489.zip | |
mei: implement client dma setup.
Implement HBM message protocol to setup and tear down
DMA buffer on behalf of an client. On top there DMA
buffer allocation and its life time management.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20210206144325.25682-5-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/client.h')
| -rw-r--r-- | drivers/misc/mei/client.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h index 9e08a9843bba..b12cdcde9436 100644 --- a/drivers/misc/mei/client.h +++ b/drivers/misc/mei/client.h @@ -265,6 +265,14 @@ void mei_cl_notify(struct mei_cl *cl); void mei_cl_all_disconnect(struct mei_device *dev); +int mei_cl_irq_dma_map(struct mei_cl *cl, struct mei_cl_cb *cb, + struct list_head *cmpl_list); +int mei_cl_irq_dma_unmap(struct mei_cl *cl, struct mei_cl_cb *cb, + struct list_head *cmpl_list); +int mei_cl_dma_alloc_and_map(struct mei_cl *cl, const struct file *fp, + u8 buffer_id, size_t size); +int mei_cl_dma_unmap(struct mei_cl *cl, const struct file *fp); + #define MEI_CL_FMT "cl:host=%02d me=%02d " #define MEI_CL_PRM(cl) (cl)->host_client_id, mei_cl_me_id(cl) |