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H A Dintel_th.hdiff 397c7729665a3b07a7b4ce7215173df8e9112809 Tue Mar 17 01:22:10 CDT 2020 Alexander Shishkin <alexander.shishkin@linux.intel.com> intel_th: Disallow multi mode on devices where it's broken

Some versions of Intel TH have an issue that prevents the multi mode of
MSU from working correctly, resulting in no trace data and potentially
stuck MSU pipeline.

Disable multi mode on such devices.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200317062215.15598-2-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H A Dmsu.cdiff 397c7729665a3b07a7b4ce7215173df8e9112809 Tue Mar 17 01:22:10 CDT 2020 Alexander Shishkin <alexander.shishkin@linux.intel.com> intel_th: Disallow multi mode on devices where it's broken

Some versions of Intel TH have an issue that prevents the multi mode of
MSU from working correctly, resulting in no trace data and potentially
stuck MSU pipeline.

Disable multi mode on such devices.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200317062215.15598-2-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
H A Dpci.cdiff 397c7729665a3b07a7b4ce7215173df8e9112809 Tue Mar 17 01:22:10 CDT 2020 Alexander Shishkin <alexander.shishkin@linux.intel.com> intel_th: Disallow multi mode on devices where it's broken

Some versions of Intel TH have an issue that prevents the multi mode of
MSU from working correctly, resulting in no trace data and potentially
stuck MSU pipeline.

Disable multi mode on such devices.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200317062215.15598-2-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>