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[igt,0/2] msm+lib: Add test for buffer mapping permissions

Message ID 20211130004324.337399-1-robdclark@gmail.com (mailing list archive)
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Series msm+lib: Add test for buffer mapping permissions | expand

Message

Rob Clark Nov. 30, 2021, 12:43 a.m. UTC 
From: Rob Clark <robdclark@chromium.org>

First patch just splits out a couple of helpers from igt_sysfs so they
can be re-used.  Second patch adds a test which locates the address of
a given buffer, and verifies (depending on expected permissions) that
writes and/or reads trigger an iova fault rather than succeeding.

Rob Clark (2):
  igt: Split out I/O helpers
  msm: Add test for kernel buffer permissions

 lib/igt_io.c        |  96 +++++++++++++++++
 lib/igt_io.h        |  33 ++++++
 lib/igt_msm.h       |   1 +
 lib/igt_sysfs.c     |  45 +-------
 lib/meson.build     |   1 +
 tests/meson.build   |   1 +
 tests/msm_mapping.c | 257 ++++++++++++++++++++++++++++++++++++++++++++
 7 files changed, 394 insertions(+), 40 deletions(-)
 create mode 100644 lib/igt_io.c
 create mode 100644 lib/igt_io.h
 create mode 100644 tests/msm_mapping.c