Re: [PATCH 0/2] iommu/omap: Rework cache functionality with DMA Streaming API

2017-08-09 Thread Laurent Pinchart
Hi Josue,

Thank you for the patches.

On Friday 28 Jul 2017 15:49:12 Josue Albarran wrote:
> Hi Joerg,
> 
> This series adapts the OMAP IOMMU driver to use the DMA API to flush
> the page table/directory table entries from the CPU caches instead of
> the ARM assembly calls. The patches are baselined on 4.13-rc1.
> 
> Following is the patch summary:
>  1. Patch 1 disables the OMAP IOMMU fault interrupts instead of
> disabling the MMU upon a fault, and resulted in recurring bus
> errors during remoteproc recovery on OMAP4. The MMU fault itself
> is triggered due to the missing PL310 L2 cache operations, and
> this patch fixes the recurring bus errors.
>  2. The second patch makes the adaptation to the DMA API for flushing
> the caches. This fixes the MMU fault triggering issues in the
> first place on OMAP4.
> 
> I have tested these patches on DRA7, OMAP5, and OMAP4 platforms using
> both OMAP IOMMU unit tests and some out-of-tree patches for exercising
> the MMUs using the OMAP remoteproc driver.
> 
> Laurent,
> Appreciate it if you can check the OMAP3ISP functionality with these
> patches once.

I apologize for the delay, I had to resurrect my Beagleboard-xM, which 
involved updating and then debugging U-Boot.

Tested-by: Laurent Pinchart 

-- 
Regards,

Laurent Pinchart



Re: [PATCH 0/2] iommu/omap: Rework cache functionality with DMA Streaming API

2017-08-04 Thread Joerg Roedel
On Fri, Jul 28, 2017 at 03:49:12PM -0500, Josue Albarran wrote:
> Fernando Guzman Lugo (1):
>   iommu/omap: Fix disabling of MMU upon a fault
> 
> Josue Albarran (1):
>   iommu/omap: Use DMA-API for performing cache flushes
> 
>  drivers/iommu/omap-iommu.c | 125 
> +
>  drivers/iommu/omap-iommu.h |   1 +
>  2 files changed, 81 insertions(+), 45 deletions(-)

Applied, thanks.