Hi,
Changes since v1: - rebased on drm-next - comments for the v1 (https://patchwork.kernel.org/patch/8358741/) addressed - u32 -> dma_addr_t when applicable - additional wmb()/rmb() added to make sure we have correct behavior
Errata i878 says that MPU should not be used to access RAM and DMM at the same time. As it's not possible to prevent MPU accessing RAM, we need to access DMM via a proxy.
Regards, Peter --- Tomi Valkeinen (2): dt-bindings: arm: omap: dmm: Document new compatible for DRA7xx family drm/omap: partial workaround for DRA7xx DMM errata i878
Documentation/devicetree/bindings/arm/omap/dmm.txt | 3 +- drivers/gpu/drm/omapdrm/omap_dmm_priv.h | 8 ++ drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 153 ++++++++++++++++++++- 3 files changed, 161 insertions(+), 3 deletions(-)
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