Reduce the tlb timeout value from 100000us to 1000us. the original value is so long that affect the multimedia performance. This is only a minor improvement rather than fixing a issue.
Signed-off-by: Yong Wu <yong...@mediatek.com> --- drivers/iommu/mtk_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 607f92c..1e9ff25 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -195,7 +195,7 @@ static void mtk_iommu_tlb_add_flush(unsigned long iova, size_t size, * follows tlb_flush to avoid break the sequence. */ ret = readl_poll_timeout_atomic(data->base + REG_MMU_CPE_DONE, - tmp, tmp != 0, 10, 100000); + tmp, tmp != 0, 10, 1000); if (ret) { dev_warn(data->dev, "Partial TLB flush timed out, falling back to full flush\n"); -- 1.9.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu