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| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2020-08-18 13:51:36 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-18 15:44:43 +0200 |
| commit | beb4e1e50311eeb65009cded71c02f3826fa314f (patch) | |
| tree | 821a63e04b573db580f09266dd886515e43d3eb2 /drivers/misc/mei/hw.h | |
| parent | mei: hbm: add capabilities message (diff) | |
| download | linux-beb4e1e50311eeb65009cded71c02f3826fa314f.tar.xz linux-beb4e1e50311eeb65009cded71c02f3826fa314f.zip | |
mei: restrict vtag support to hbm version 2.2
The vtag allows partitioning the mei messages into virtual groups/channels.
Vtags are supported for firmwares with HBM version 2.2 and newer
and only when a firmware confirms the support via capability handshake.
This change only define vtag restrictions in order to make
the series bisectable. Everything will be enabled when driver HBM
version is set to 2.2.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20200818115147.2567012-3-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/hw.h')
| -rw-r--r-- | drivers/misc/mei/hw.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h index 539d89ba1c61..13e4cb68a0e6 100644 --- a/drivers/misc/mei/hw.h +++ b/drivers/misc/mei/hw.h @@ -77,6 +77,12 @@ #define HBM_MAJOR_VERSION_DR 2 /* + * MEI version with vm tag support + */ +#define HBM_MINOR_VERSION_VT 2 +#define HBM_MAJOR_VERSION_VT 2 + +/* * MEI version with capabilities message support */ #define HBM_MINOR_VERSION_CAP 2 @@ -542,6 +548,9 @@ struct hbm_dma_ring_ctrl { u32 reserved4; } __packed; +/* virtual tag supported */ +#define HBM_CAP_VT BIT(0) + /** * struct hbm_capability_request - capability request from host to fw * |