Messages in this thread | | | Subject | Re: [PATCH 2/2] iommu/omap: Use DMA-API for performing cache flushes | From | Suman Anna <> | Date | Tue, 1 Aug 2017 12:38:10 -0500 |
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On 07/28/2017 03:49 PM, Josue Albarran wrote: > The OMAP IOMMU driver was using ARM assembly code directly for > flushing the MMU page table entries from the caches. This caused > MMU faults on OMAP4 (Cortex-A9 based SoCs) as L2 caches were not > handled due to the presence of a PL310 L2 Cache Controller. These > faults were however not seen on OMAP5/DRA7 SoCs (Cortex-A15 based > SoCs). > > The OMAP IOMMU driver is adapted to use the DMA Streaming API > instead now to flush the page table/directory table entries from > the CPU caches. This ensures that the devices always see the > updated page table entries. The outer caches are now addressed > automatically with the usage of the DMA API. > > Signed-off-by: Josue Albarran <j-albarran@ti.com>
Thanks for fixing this, Acked-by: Suman Anna <s-anna@ti.com>
[snip]
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