| From e6c39c2219f9d308ea57c09fc1b0b5b151b52b7d Mon Sep 17 00:00:00 2001 |
| From: Laurentiu Tudor <laurentiu.tudor@nxp.com> |
| 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 <nipun.gupta@nxp.com> |
| Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com> |
| --- |
| 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 |