Jeffrey Hugo e997c218ad accel/qaic: Fix NNC message corruption ... If msg_xfer() is unable to queue part of a NNC message because the MHI ring is full, it will attempt to give the QSM some time to drain the queue. However, if QSM fails to make any room, msg_xfer() will fail and tell the caller to try again. This is problematic because part of the message may have been committed to the ring and there is no mechanism to revoke that content. This will cause QSM to receive a corrupt message. The better way to do this is to check if the ring has enough space for the entire message before committing any of the message. Since msg_xfer() is under the cntl_mutex no one else can come in and consume the space. Fixes: 129776ac2e ("accel/qaic: Add control path") Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Reviewed-by: Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com> Reviewed-by: Carl Vanderlip <quic_carlv@quicinc.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230517193540.14323-6-quic_jhugo@quicinc.com		2023-05-23 09:51:38 -06:00
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habanalabs	Driver core changes for 6.4-rc1	2023-04-27 11:53:57 -07:00
ivpu	drm next for 6.4-rc1	2023-04-25 16:12:15 -07:00
qaic	accel/qaic: Fix NNC message corruption	2023-05-23 09:51:38 -06:00
drm_accel.c	driver core: class: remove module * from class_create()	2023-03-17 15:16:33 +01:00
Kconfig	accel/qaic: Add qaic driver to the build system	2023-04-06 08:23:03 +02:00
Makefile	accel/qaic: Add qaic driver to the build system	2023-04-06 08:23:03 +02:00