remoteproc: qcom_q6v5_mss: map/unmap mpss segments before/after use

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The application processor accessing the mpss region when the Q6 modem is
running will lead to an XPU violation. Fix this by un-mapping the mpss
segments post copy during mpss authentication and coredumps.

Tested-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200415071619.6052-1-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

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Sibi Sankar 2020-04-15 12:46:18 +05:30 • committed by Bjorn Andersson

parent a9fdc79d48

commit be050a3429

1 changed files with 20 additions and 11 deletions

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drivers/remoteproc/qcom_q6v5_mss.c

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