Re: [RFC PATCH V2] scsi: ufs: Add specific callback for setting DMA mask

2018-05-19 Thread Alim Akhtar
Hi Subhash On 05/17/2018 03:01 AM, Subhash Jadavani wrote: > On 2018-05-15 21:31, Alim Akhtar wrote: >> Ping !!! >> >> On Thu, Mar 8, 2018 at 4:33 PM, Alim Akhtar >> wrote: >>> Currently DMA mask for UFS HCI is set by reading CAP register's >>> [64AS] bit. Some HCI controller like Exynos support

Re: [RFC PATCH V2] scsi: ufs: Add specific callback for setting DMA mask

2018-05-16 Thread Subhash Jadavani
On 2018-05-15 21:31, Alim Akhtar wrote: Ping !!! On Thu, Mar 8, 2018 at 4:33 PM, Alim Akhtar wrote: Currently DMA mask for UFS HCI is set by reading CAP register's [64AS] bit. Some HCI controller like Exynos support 36-bit bus address. This works perfectly fine with DMA mask set as 64 in ca

Re: [RFC PATCH V2] scsi: ufs: Add specific callback for setting DMA mask

2018-05-15 Thread Alim Akhtar
Ping !!! On Thu, Mar 8, 2018 at 4:33 PM, Alim Akhtar wrote: > Currently DMA mask for UFS HCI is set by reading CAP register's > [64AS] bit. Some HCI controller like Exynos support 36-bit bus address. > This works perfectly fine with DMA mask set as 64 in case there is no > IOMMU attached to HCI.