From e6c39c2219f9d308ea57c09fc1b0b5b151b52b7d Mon Sep 17 00:00:00 2001 From: Laurentiu Tudor Date: Mon, 16 Apr 2018 11:33:11 +0300 Subject: [PATCH] bus: fsl-mc: define macros for iommu enablement for fsl-mc bus Macros to get coherency and the container device of the devices on fsl-mc bus are required to suport SMMU for this bus. This patch defines the same. Signed-off-by: Nipun Gupta Signed-off-by: Laurentiu Tudor --- include/linux/fsl/mc.h | 4 ++++ 1 file changed, 4 insertions(+) --- a/include/linux/fsl/mc.h +++ b/include/linux/fsl/mc.h @@ -356,6 +356,10 @@ int mc_send_command(struct fsl_mc_io *mc #define fsl_mc_cont_dev(_dev) (fsl_mc_is_cont_dev(_dev) ? \ (_dev) : (_dev)->parent) +#define fsl_mc_is_dev_coherent(_dev) \ + (!((to_fsl_mc_device(_dev))->obj_desc.flags & \ + FSL_MC_OBJ_FLAG_NO_MEM_SHAREABILITY)) + /* * module_fsl_mc_driver() - Helper macro for drivers that don't do * anything special in module init/exit. This eliminates a lot of