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- To enable FECS trace support, nvgpu should set the MSB of the read pointer (MAILBOX1). - The ucode will check if the feature is enabled/disabled before writing a record into the circular buffer. If the feature is disabled, it will not write the record. - If the feature is enabled and the buffer is not allocated, HW will throw a page fault error. Bug 2459186 Bug 200542611 Change-Id: I6f181643737d1cf1bda02077eaa714a3f4ef3d8c Signed-off-by: seshendra <sgadagottu@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2189250 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>