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issei: initial driver skeleton

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The ISSEI (Intel Silicon Security Engine Interface)
subsystem provides a communication channel between the host and the
Silicon Security Engine.

Prepare basic driver functions and character device
for user-space communication.
Add DMA access routines for ISSEI HECI devices.
Add of DMA-related structures and implementation of routines for
setting up DMA, as well as reading and writing DMA buffers.

Reviewed-by: Karol Wachowski <karol.wachowski@linux.intel.com>
Co-developed-by: Vitaly Lubart <lubvital@gmail.com>
Signed-off-by: Vitaly Lubart <lubvital@gmail.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Link: https://patch.msgid.link/20260513-issei-for-upstream-v1-1-f590038678f9@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Usyskin 2026-05-13 17:18:42 +03:00 • committed by Greg Kroah-Hartman
commit 65f0ecb9ec
15 changed files with 1031 additions and 0 deletions
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