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>

1 files changed, 48 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/821-vfio-0003-vfio-fsl-mc-Implement-VFIO_DEVICE_GET_INFO-ioctl.patch b/target/linux/layerscape/patches-5.4/821-vfio-0003-vfio-fsl-mc-Implement-VFIO_DEVICE_GET_INFO-ioctl.patch
new file mode 100644
index 0000000000..7ec0305050
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/821-vfio-0003-vfio-fsl-mc-Implement-VFIO_DEVICE_GET_INFO-ioctl.patch
@@ -0,0 +1,48 @@
+From a548dc00536e2cc6e7e7f95487f5261b3133a0d7 Mon Sep 17 00:00:00 2001
+From: Diana Craciun <diana.craciun@nxp.com>
+Date: Wed, 18 Sep 2019 18:26:14 +0300
+Subject: [PATCH] vfio/fsl-mc: Implement VFIO_DEVICE_GET_INFO ioctl
+
+Allow userspace to get fsl-mc device info (number of regions
+and irqs).
+
+Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
+Signed-off-by: Diana Craciun <diana.craciun@nxp.com>
+---
+ drivers/vfio/fsl-mc/vfio_fsl_mc.c | 22 +++++++++++++++++++++-
+ 1 file changed, 21 insertions(+), 1 deletion(-)
+
+--- a/drivers/vfio/fsl-mc/vfio_fsl_mc.c
++++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c
+@@ -32,10 +32,30 @@ static void vfio_fsl_mc_release(void *de
+ static long vfio_fsl_mc_ioctl(void *device_data, unsigned int cmd,
+ 			      unsigned long arg)
+ {
++	unsigned long minsz;
++	struct vfio_fsl_mc_device *vdev = device_data;
++	struct fsl_mc_device *mc_dev = vdev->mc_dev;
++
+ 	switch (cmd) {
+ 	case VFIO_DEVICE_GET_INFO:
+ 	{
+-		return -EINVAL;
++		struct vfio_device_info info;
++
++		minsz = offsetofend(struct vfio_device_info, num_irqs);
++
++		if (copy_from_user(&info, (void __user *)arg, minsz))
++			return -EFAULT;
++
++		if (info.argsz < minsz)
++			return -EINVAL;
++
++		info.flags = VFIO_DEVICE_FLAGS_FSL_MC;
++		info.num_regions = mc_dev->obj_desc.region_count;
++		info.num_irqs = mc_dev->obj_desc.irq_count;
++
++		return copy_to_user((void __user *)arg, &info, minsz) ?
++			-EFAULT : 0;
++
+ 	}
+ 	case VFIO_DEVICE_GET_REGION_INFO:
+ 	{