On 1/6/20 5:03 PM, Vineet Gupta wrote: > >> +.macro DSP_SAVE_REGFILE_IRQ >> +#if defined(CONFIG_ARC_DSP_KERNEL) >> + /* Drop any changes to DSP_CTRL made by userspace so userspace won't be >> + * able to break kernel */ >> + mov r58, DSP_CTRL_DISABLED_ALL >> + sr r58, [ARC_AUX_DSP_CTRL] > This also clears the sticky flag DSP_CTRL.SAT, can you check with DSP lib folks if they rely on this bit in any way whatsoever ! _______________________________________________ linux-snps-arc mailing list linux-snps-arc@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/linux-snps-arc
