diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0140-bus-fsl-mc-define-macros-for-iommu-enablement-for-fs.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0140-bus-fsl-mc-define-macros-for-iommu-enablement-for-fs.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0140-bus-fsl-mc-define-macros-for-iommu-enablement-for-fs.patch b/target/linux/layerscape/patches-5.4/701-net-0140-bus-fsl-mc-define-macros-for-iommu-enablement-for-fs.patch new file mode 100644 index 0000000000..b29ae0746e --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0140-bus-fsl-mc-define-macros-for-iommu-enablement-for-fs.patch @@ -0,0 +1,29 @@ +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 |