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If qaic_destroy_drm_device() is called before the device has fully
initialized it will cause a NULL pointer dereference as the drm device
has not yet been created. Fix this with a NULL check.
Fixes: c501ca23a6a3 ("accel/qaic: Add uapi and core driver file")
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Carl Vanderlip <quic_carlv@quicinc.com>
Reviewed-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230602210440.8411-3-quic_jhugo@quicinc.com
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After user handle is allocated, if mutex is interrupted, we do not free
the user handle and return an error. Kref had been initialized, but not
added to users list, so device teardown would also not call free_usr.
Fixes: c501ca23a6a3 ("accel/qaic: Add uapi and core driver file")
Signed-off-by: Carl Vanderlip <quic_carlv@quicinc.com>
Reviewed-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230602210440.8411-2-quic_jhugo@quicinc.com
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Smatch complains that these are not initialized if get_cntl_version()
fails but we still print them in the debug message. Not the end of
the world, but true enough. Let's just initialize them to a dummy value
to make the checker happy.
Fixes: c501ca23a6a3 ("accel/qaic: Add uapi and core driver file")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Carl Vanderlip <quic_carlv@quicinc.com>
Reviewed-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
[jhugo: Add fixes and reorder varable declarations for style]
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/d11ee378-7b06-4b5e-b56f-d66174be1ab3@kili.mountain
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This reverts commit 566fc96198b4bb07ca6806386956669881225271.
This exposes a userspace API that is still under debate. Revert the
change before the uAPI gets exposed to avoid making a mistake. QAIC is
otherwise still functional.
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1681307864-3782-1-git-send-email-quic_jhugo@quicinc.com
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Add the QAIC driver uapi file and core driver file that binds to the PCIe
device. The core driver file also creates the accel device and manages
all the interconnections between the different parts of the driver.
The driver can be built as a module. If so, it will be called "qaic.ko".
Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Carl Vanderlip <quic_carlv@quicinc.com>
Reviewed-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Acked-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1679932497-30277-3-git-send-email-quic_jhugo@quicinc.com
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