> From: Santosh Shukla [mailto:[email protected]] > Sent: Thursday, August 31, 2017 4:26 AM > To: [email protected] > Cc: [email protected]; [email protected]; > [email protected]; [email protected]; > [email protected]; Gonzalez Monroy, Sergio > <[email protected]>; Richardson, Bruce > <[email protected]>; [email protected]; > [email protected]; Burakov, Anatoly <[email protected]>; > [email protected]; [email protected]; Santosh Shukla > <[email protected]> > Subject: [PATCH v7 4/9] bus: get iommu class > > API(rte_bus_get_iommu_class) helps to automatically detect and select > appropriate iova mapping scheme for iommu capable device on that bus. > > Algorithm for iova scheme selection for bus: > 0. Iterate through bus_list. > 1. Collect each bus iova mode value and update into 'mode' var. > 2. Mode selection scheme is: > if mode == 0 then iova mode is _pa, > if mode == 1 then iova mode is _pa, > if mode == 2 then iova mode is _va, > if mode == 3 then iova mode ia _pa. > > So mode !=2 will be default iova mode (_pa). > > Signed-off-by: Santosh Shukla <[email protected]> > Signed-off-by: Jerin Jacob <[email protected]> > Reviewed-by: Maxime Coquelin <[email protected]> > Acked-by: Hemant Agrawal <[email protected]> > ---
Reviewed-by: Anatoly Burakov <[email protected]>
