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| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2021-11-12 09:28:09 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2021-11-26 19:31:46 +0300 |
| commit | 2cca3465147d650be3de04927a99784b30251ade (patch) | |
| tree | 6c2345c0c6179550e5f88e610a5ce6d86aed9c74 /drivers/misc/mei/hw.h | |
| parent | 84d94e16efa268e4f2887d858cd67ee37b870f25 (diff) | |
| download | linux-2cca3465147d650be3de04927a99784b30251ade.tar.xz | |
mei: bus: add client dma interface
Expose the client dma mapping via mei client bus interface.
The client dma has to be mapped before the device is enabled,
therefore we need to create device linking already during mapping
and we need to unmap after the client is disable hence we need to
postpone the unlink and flush till unmapping or when
destroying the device.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Co-developed-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20210420172755.12178-1-emmanuel.grumbach@intel.com
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211112062814.7502-1-emmanuel.grumbach@intel.com
Diffstat (limited to 'drivers/misc/mei/hw.h')
| -rw-r--r-- | drivers/misc/mei/hw.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h index dfd60c916da0..b46077b17114 100644 --- a/drivers/misc/mei/hw.h +++ b/drivers/misc/mei/hw.h @@ -23,6 +23,11 @@ #define MEI_HBM_TIMEOUT 1 /* 1 second */ /* + * FW page size for DMA allocations + */ +#define MEI_FW_PAGE_SIZE 4096UL + +/* * MEI Version */ #define HBM_MINOR_VERSION 2 |