openwrt/target/linux/layerscape/patches-5.4/701-net-0140-bus-fsl-mc-define-macros-for-iommu-enablement-for-fs.patch
Yangbo Lu cddd459140 layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2020-05-07 12:53:06 +02:00

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1.0 KiB
Diff

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