[PATCH v3 0/4] Virtio-over-PCIe loopback

[Vincent Whitchurch]

This adds a loopback driver to be able to use/test/evaluate the
drivers/misc/mic/vop/ code without special hardware.

See v1 for more info:
https://lore.kernel.org/lkml/20190116163253.23780-1-vincent.whitchurch@xxxxxxxx/

v3:
- Rebase on top of merged patches
- Resend since last posting had duplicate patches

v2:
- Rebase on top of the patches which have merged
- Use unsigned long instead of uintptr_t
- Drop "Use consistent DMA" for now since it's not needed for loopback
- Add race fix
- Build on all architectures, not just ARM and x86
- Add sample userspace code

Vincent Whitchurch (4):
  mic: vop: Fix init race with shared interrupts
  mic: vop: Add loopback driver
  samples: mic: Split out vop code from mpssd
  samples: mic: Add sample VOP userspace

 drivers/misc/mic/Kconfig            |   10 +
 drivers/misc/mic/vop/Makefile       |    2 +
 drivers/misc/mic/vop/vop_loopback.c |  382 ++++++++
 drivers/misc/mic/vop/vop_main.c     |   42 +-
 samples/mic/mpssd/.gitignore        |    1 +
 samples/mic/mpssd/Makefile          |    9 +-
 samples/mic/mpssd/mpssd.c           | 1317 +-------------------------
 samples/mic/mpssd/mpssd.h           |    1 +
 samples/mic/mpssd/vop.c             | 1357 +++++++++++++++++++++++++++
 samples/mic/mpssd/vopd.c            |   25 +
 10 files changed, 1827 insertions(+), 1319 deletions(-)
 create mode 100644 drivers/misc/mic/vop/vop_loopback.c
 create mode 100644 samples/mic/mpssd/vop.c
 create mode 100644 samples/mic/mpssd/vopd.c

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2.20.0