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authorMahesh Sivasubramanian <msivasub@codeaurora.org>2017-03-08 15:38:23 -0700
committerMahesh Sivasubramanian <msivasub@codeaurora.org>2017-03-21 13:45:22 -0600
commit28b53fbb7280486a9b783fd47dc8eac13f199edd (patch)
treea2cffc50d52e4cbac7fe277d606d9106b7e20afa /kernel/trace/trace_functions_graph.c
parentd72462d943ee499ac17a485bdacca60c0db31c04 (diff)
drivers: soc: qcom: Remove prints from the idle path
The system runs into a "undefined instruction" error when first core waking out of power collapse tries to wakeup a core by writing to a GIC register. When waking out of reset, the GIC SRE bit is reset, and any accesses to the GIC ICC registers would result in a "undefined instructions". When a first waking out of reset writes to a console, the console task is now marked as unnable by the scheduler. If the console task is running on a different CPU, this would trigger a IRQ_WORK IPI to the target CPU. Since the core is waking out of reset, its SRE bit is cleared and any access to the GIC ICC registers results in an undefined instruction abort. Fix by removing logging from the idle path. Change-Id: I476d4a4d082bb115128e1f54c931558e79fec567 Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
Diffstat (limited to 'kernel/trace/trace_functions_graph.c')
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