kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 192 deletions

diff --git a/target/linux/layerscape/patches-5.4/821-vfio-0007-vfio-fsl-mc-Add-irq-infrastructure-for-fsl-mc-device.patch b/target/linux/layerscape/patches-5.4/821-vfio-0007-vfio-fsl-mc-Add-irq-infrastructure-for-fsl-mc-device.patch
deleted file mode 100644
index 025b0371bd..0000000000
--- a/target/linux/layerscape/patches-5.4/821-vfio-0007-vfio-fsl-mc-Add-irq-infrastructure-for-fsl-mc-device.patch
+++ /dev/null
@@ -1,192 +0,0 @@
-From aa8dac23408e24432f7d6c404cddc8997a142bd6 Mon Sep 17 00:00:00 2001
-From: Diana Craciun <diana.craciun@nxp.com>
-Date: Mon, 30 Sep 2019 11:56:35 +0300
-Subject: [PATCH] vfio/fsl-mc: Add irq infrastructure for fsl-mc devices
-
-This patch adds the skeleton for interrupt support
-for fsl-mc devices. The interrupts are not yet functional,
-the functionality will be added by subsequent patches.
-
-Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
-Signed-off-by: Diana Craciun <diana.craciun@nxp.com>
----
- drivers/vfio/fsl-mc/Makefile              |  2 +-
- drivers/vfio/fsl-mc/vfio_fsl_mc.c         | 71 ++++++++++++++++++++++++++++++-
- drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c    | 62 +++++++++++++++++++++++++++
- drivers/vfio/fsl-mc/vfio_fsl_mc_private.h |  5 +++
- 4 files changed, 137 insertions(+), 3 deletions(-)
- create mode 100644 drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c
-
---- a/drivers/vfio/fsl-mc/Makefile
-+++ b/drivers/vfio/fsl-mc/Makefile
-@@ -1,2 +1,2 @@
- vfio-fsl_mc-y := vfio_fsl_mc.o
--obj-$(CONFIG_VFIO_FSL_MC) += vfio_fsl_mc.o
-+obj-$(CONFIG_VFIO_FSL_MC) += vfio_fsl_mc.o vfio_fsl_mc_intr.o
---- a/drivers/vfio/fsl-mc/vfio_fsl_mc.c
-+++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c
-@@ -208,11 +208,75 @@ static long vfio_fsl_mc_ioctl(void *devi
- 	}
- 	case VFIO_DEVICE_GET_IRQ_INFO:
- 	{
--		return -EINVAL;
-+		struct vfio_irq_info info;
-+
-+		minsz = offsetofend(struct vfio_irq_info, count);
-+		if (copy_from_user(&info, (void __user *)arg, minsz))
-+			return -EFAULT;
-+
-+		if (info.argsz < minsz)
-+			return -EINVAL;
-+
-+		if (info.index >= mc_dev->obj_desc.irq_count)
-+			return -EINVAL;
-+
-+		info.flags = VFIO_IRQ_INFO_EVENTFD;
-+		info.count = 1;
-+
-+		return copy_to_user((void __user *)arg, &info, minsz);
- 	}
- 	case VFIO_DEVICE_SET_IRQS:
- 	{
--		return -EINVAL;
-+		struct vfio_irq_set hdr;
-+		u8 *data = NULL;
-+		int ret = 0;
-+
-+		minsz = offsetofend(struct vfio_irq_set, count);
-+
-+		if (copy_from_user(&hdr, (void __user *)arg, minsz))
-+			return -EFAULT;
-+
-+		if (hdr.argsz < minsz)
-+			return -EINVAL;
-+
-+		if (hdr.index >= mc_dev->obj_desc.irq_count)
-+			return -EINVAL;
-+
-+		if (hdr.start != 0 || hdr.count > 1)
-+			return -EINVAL;
-+
-+		if (hdr.count == 0 &&
-+		    (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE) ||
-+		    !(hdr.flags & VFIO_IRQ_SET_ACTION_TRIGGER)))
-+			return -EINVAL;
-+
-+		if (hdr.flags & ~(VFIO_IRQ_SET_DATA_TYPE_MASK |
-+				  VFIO_IRQ_SET_ACTION_TYPE_MASK))
-+			return -EINVAL;
-+
-+		if (!(hdr.flags & VFIO_IRQ_SET_DATA_NONE)) {
-+			size_t size;
-+
-+			if (hdr.flags & VFIO_IRQ_SET_DATA_BOOL)
-+				size = sizeof(uint8_t);
-+			else if (hdr.flags & VFIO_IRQ_SET_DATA_EVENTFD)
-+				size = sizeof(int32_t);
-+			else
-+				return -EINVAL;
-+
-+			if (hdr.argsz - minsz < hdr.count * size)
-+				return -EINVAL;
-+
-+			data = memdup_user((void __user *)(arg + minsz),
-+					   hdr.count * size);
-+			if (IS_ERR(data))
-+				return PTR_ERR(data);
-+		}
-+
-+		ret = vfio_fsl_mc_set_irqs_ioctl(vdev, hdr.flags,
-+						 hdr.index, hdr.start,
-+						 hdr.count, data);
-+		return ret;
- 	}
- 	case VFIO_DEVICE_RESET:
- 	{
-@@ -304,6 +368,9 @@ static int vfio_fsl_mc_init_device(struc
- 	int ret = 0;
- 	unsigned int irq_count;
- 
-+	/* innherit the msi domain from parent */
-+	dev_set_msi_domain(&mc_dev->dev, dev_get_msi_domain(mc_dev->dev.parent));
-+
- 	/* Non-dprc devices share mc_io from parent */
- 	if (!is_fsl_mc_bus_dprc(mc_dev)) {
- 		struct fsl_mc_device *mc_cont = to_fsl_mc_device(mc_dev->dev.parent);
---- /dev/null
-+++ b/drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c
-@@ -0,0 +1,62 @@
-+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
-+/*
-+ * Copyright 2013-2016 Freescale Semiconductor Inc.
-+ * Copyright 2019 NXP
-+ */
-+
-+#include <linux/vfio.h>
-+#include <linux/slab.h>
-+#include <linux/types.h>
-+#include <linux/eventfd.h>
-+#include <linux/msi.h>
-+
-+#include "linux/fsl/mc.h"
-+#include "vfio_fsl_mc_private.h"
-+
-+static int vfio_fsl_mc_irq_mask(struct vfio_fsl_mc_device *vdev,
-+				unsigned int index, unsigned int start,
-+				unsigned int count, uint32_t flags,
-+				void *data)
-+{
-+	return -EINVAL;
-+}
-+
-+static int vfio_fsl_mc_irq_unmask(struct vfio_fsl_mc_device *vdev,
-+				unsigned int index, unsigned int start,
-+				unsigned int count, uint32_t flags,
-+				void *data)
-+{
-+	return -EINVAL;
-+}
-+
-+static int vfio_fsl_mc_set_irq_trigger(struct vfio_fsl_mc_device *vdev,
-+				       unsigned int index, unsigned int start,
-+				       unsigned int count, uint32_t flags,
-+				       void *data)
-+{
-+	return -EINVAL;
-+}
-+int vfio_fsl_mc_set_irqs_ioctl(struct vfio_fsl_mc_device *vdev,
-+			       uint32_t flags, unsigned int index,
-+			       unsigned int start, unsigned int count,
-+			       void *data)
-+{
-+	int ret = -ENOTTY;
-+
-+	switch (flags & VFIO_IRQ_SET_ACTION_TYPE_MASK) {
-+	case VFIO_IRQ_SET_ACTION_MASK:
-+		ret = vfio_fsl_mc_irq_mask(vdev, index, start, count,
-+					   flags, data);
-+		break;
-+	case VFIO_IRQ_SET_ACTION_UNMASK:
-+		ret = vfio_fsl_mc_irq_unmask(vdev, index, start, count,
-+					     flags, data);
-+		break;
-+	case VFIO_IRQ_SET_ACTION_TRIGGER:
-+		ret = vfio_fsl_mc_set_irq_trigger(vdev, index, start,
-+						  count, flags, data);
-+		break;
-+	}
-+
-+	return ret;
-+}
---- a/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h
-+++ b/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h
-@@ -35,4 +35,9 @@ struct vfio_fsl_mc_device {
- 	struct vfio_fsl_mc_reflck   *reflck;
- };
- 
-+int vfio_fsl_mc_set_irqs_ioctl(struct vfio_fsl_mc_device *vdev,
-+			       uint32_t flags, unsigned int index,
-+			       unsigned int start, unsigned int count,
-+			       void *data);
-+
- #endif /* VFIO_PCI_PRIVATE_H */