GFX_SLICE_PERIOD_MS
adev->gfx.enforce_isolation_time[idx] = GFX_SLICE_PERIOD_MS;
if ((jiffies_to_msecs(cjiffies) >= GFX_SLICE_PERIOD_MS)) {
adev->gfx.enforce_isolation_time[idx] = GFX_SLICE_PERIOD_MS;
GFX_SLICE_PERIOD_MS - jiffies_to_msecs(cjiffies);
adev->gfx.enforce_isolation_time[idx] = GFX_SLICE_PERIOD_MS;
msleep(GFX_SLICE_PERIOD_MS);