On 09/29/15 at 06:09pm, Joerg Roedel wrote:
> On Thu, Sep 24, 2015 at 02:37:35PM +0800, Baoquan He wrote:
> > @@ -2469,6 +2469,8 @@ static dma_addr_t __map_single(struct device *dev,
> > unsigned long align_mask = 0;
> > int i;
> >
> > + if (translation_pre_enabled())
> > + clear_translation_pre_enabled();
>
> There is probably a better place to do this somewhere in the
> initialization state machine of the AMD IOMMU driver.
Yeah, I put it in state_next().
static int __init state_next(void)
{
int ret = 0;
switch (init_state) {
case IOMMU_START_STATE:
......
case IOMMU_DMA_OPS:
if (translation_pre_enabled())
clear_translation_pre_enabled();
init_state = IOMMU_INITIALIZED;
break;
......
}
>
>
> Joerg
>
