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, 153 deletions

diff --git a/target/linux/layerscape/patches-5.4/821-vfio-0004-vfio-fsl-mc-Implement-VFIO_DEVICE_GET_REGION_INFO-io.patch b/target/linux/layerscape/patches-5.4/821-vfio-0004-vfio-fsl-mc-Implement-VFIO_DEVICE_GET_REGION_INFO-io.patch
deleted file mode 100644
index c538ed0d5c..0000000000
--- a/target/linux/layerscape/patches-5.4/821-vfio-0004-vfio-fsl-mc-Implement-VFIO_DEVICE_GET_REGION_INFO-io.patch
+++ /dev/null
@@ -1,153 +0,0 @@
-From 10abb46294d1569826854f77bcdb5d38d8db8e79 Mon Sep 17 00:00:00 2001
-From: Diana Craciun <diana.craciun@nxp.com>
-Date: Thu, 26 Sep 2019 15:13:24 +0300
-Subject: [PATCH] vfio/fsl-mc: Implement VFIO_DEVICE_GET_REGION_INFO ioctl call
-
-Expose to userspace information about the memory regions.
-
-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         | 76 ++++++++++++++++++++++++++++++-
- drivers/vfio/fsl-mc/vfio_fsl_mc_private.h | 19 ++++++++
- 2 files changed, 94 insertions(+), 1 deletion(-)
-
---- a/drivers/vfio/fsl-mc/vfio_fsl_mc.c
-+++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c
-@@ -16,16 +16,70 @@
- #include "vfio_fsl_mc_private.h"
- 
- 
-+static int vfio_fsl_mc_regions_init(struct vfio_fsl_mc_device *vdev)
-+{
-+	struct fsl_mc_device *mc_dev = vdev->mc_dev;
-+	int count = mc_dev->obj_desc.region_count;
-+	int i;
-+
-+	vdev->regions = kcalloc(count, sizeof(struct vfio_fsl_mc_region),
-+				GFP_KERNEL);
-+	if (!vdev->regions)
-+		return -ENOMEM;
-+
-+	for (i = 0; i < count; i++) {
-+		struct resource *res = &mc_dev->regions[i];
-+
-+		vdev->regions[i].addr = res->start;
-+		vdev->regions[i].size = PAGE_ALIGN((resource_size(res)));
-+		vdev->regions[i].flags = 0;
-+	}
-+
-+	vdev->num_regions = mc_dev->obj_desc.region_count;
-+	return 0;
-+}
-+static void vfio_fsl_mc_regions_cleanup(struct vfio_fsl_mc_device *vdev)
-+{
-+	vdev->num_regions = 0;
-+	kfree(vdev->regions);
-+}
-+
- static int vfio_fsl_mc_open(void *device_data)
- {
-+	struct vfio_fsl_mc_device *vdev = device_data;
-+	int ret;
-+
- 	if (!try_module_get(THIS_MODULE))
- 		return -ENODEV;
- 
-+	mutex_lock(&vdev->driver_lock);
-+	if (!vdev->refcnt) {
-+		ret = vfio_fsl_mc_regions_init(vdev);
-+		if (ret)
-+			goto err_reg_init;
-+	}
-+	vdev->refcnt++;
-+
-+	mutex_unlock(&vdev->driver_lock);
- 	return 0;
-+
-+err_reg_init:
-+	mutex_unlock(&vdev->driver_lock);
-+	module_put(THIS_MODULE);
-+	return ret;
- }
- 
- static void vfio_fsl_mc_release(void *device_data)
- {
-+	struct vfio_fsl_mc_device *vdev = device_data;
-+
-+	mutex_lock(&vdev->driver_lock);
-+
-+	if (!(--vdev->refcnt))
-+		vfio_fsl_mc_regions_cleanup(vdev);
-+
-+	mutex_unlock(&vdev->driver_lock);
-+
- 	module_put(THIS_MODULE);
- }
- 
-@@ -59,7 +113,26 @@ static long vfio_fsl_mc_ioctl(void *devi
- 	}
- 	case VFIO_DEVICE_GET_REGION_INFO:
- 	{
--		return -EINVAL;
-+		struct vfio_region_info info;
-+
-+		minsz = offsetofend(struct vfio_region_info, offset);
-+
-+		if (copy_from_user(&info, (void __user *)arg, minsz))
-+			return -EFAULT;
-+
-+		if (info.argsz < minsz)
-+			return -EINVAL;
-+
-+		if (info.index >= vdev->num_regions)
-+			return -EINVAL;
-+
-+		/* map offset to the physical address  */
-+		info.offset = VFIO_FSL_MC_INDEX_TO_OFFSET(info.index);
-+		info.size = vdev->regions[info.index].size;
-+		info.flags = vdev->regions[info.index].flags;
-+
-+		return copy_to_user((void __user *)arg, &info, minsz);
-+
- 	}
- 	case VFIO_DEVICE_GET_IRQ_INFO:
- 	{
-@@ -206,6 +279,7 @@ static int vfio_fsl_mc_probe(struct fsl_
- 		vfio_iommu_group_put(group, dev);
- 		return ret;
- 	}
-+	mutex_init(&vdev->driver_lock);
- 
- 	return ret;
- }
---- a/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h
-+++ b/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h
-@@ -7,8 +7,27 @@
- #ifndef VFIO_FSL_MC_PRIVATE_H
- #define VFIO_FSL_MC_PRIVATE_H
- 
-+#define VFIO_FSL_MC_OFFSET_SHIFT    40
-+#define VFIO_FSL_MC_OFFSET_MASK (((u64)(1) << VFIO_FSL_MC_OFFSET_SHIFT) - 1)
-+
-+#define VFIO_FSL_MC_OFFSET_TO_INDEX(off) (off >> VFIO_FSL_MC_OFFSET_SHIFT)
-+
-+#define VFIO_FSL_MC_INDEX_TO_OFFSET(index)	\
-+	((u64)(index) << VFIO_FSL_MC_OFFSET_SHIFT)
-+
-+struct vfio_fsl_mc_region {
-+	u32			flags;
-+	u32			type;
-+	u64			addr;
-+	resource_size_t		size;
-+};
-+
- struct vfio_fsl_mc_device {
- 	struct fsl_mc_device		*mc_dev;
-+	int				refcnt;
-+	u32				num_regions;
-+	struct vfio_fsl_mc_region	*regions;
-+	struct mutex driver_lock;
- };
- 
- #endif /* VFIO_PCI_PRIVATE_H */