From mboxrd@z Thu Jan 1 00:00:00 1970 From: laurent.pinchart@ideasonboard.com (Laurent Pinchart) Date: Wed, 09 Aug 2017 14:20:42 +0300 Subject: [PATCH 0/2] iommu/omap: Rework cache functionality with DMA Streaming API In-Reply-To: <1501274954-20973-1-git-send-email-j-albarran@ti.com> References: <1501274954-20973-1-git-send-email-j-albarran@ti.com> Message-ID: <1541952.tFANgzzemW@avalon> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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