aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/vfio/fsl-mc/vfio_fsl_mc_private.h')
-rw-r--r--drivers/vfio/fsl-mc/vfio_fsl_mc_private.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h b/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h
new file mode 100644
index 000000000000..a97ee691ed47
--- /dev/null
+++ b/drivers/vfio/fsl-mc/vfio_fsl_mc_private.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016,2019-2020 NXP
+ */
+
+#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_irq {
+ u32 flags;
+ u32 count;
+ struct eventfd_ctx *trigger;
+ char *name;
+};
+
+struct vfio_fsl_mc_reflck {
+ struct kref kref;
+ struct mutex lock;
+};
+
+struct vfio_fsl_mc_region {
+ u32 flags;
+ u32 type;
+ u64 addr;
+ resource_size_t size;
+ void __iomem *ioaddr;
+};
+
+struct vfio_fsl_mc_device {
+ struct fsl_mc_device *mc_dev;
+ struct notifier_block nb;
+ int refcnt;
+ struct vfio_fsl_mc_region *regions;
+ struct vfio_fsl_mc_reflck *reflck;
+ struct mutex igate;
+ struct vfio_fsl_mc_irq *mc_irqs;
+};
+
+extern int vfio_fsl_mc_set_irqs_ioctl(struct vfio_fsl_mc_device *vdev,
+ u32 flags, unsigned int index,
+ unsigned int start, unsigned int count,
+ void *data);
+
+void vfio_fsl_mc_irqs_cleanup(struct vfio_fsl_mc_device *vdev);
+
+#endif /* VFIO_FSL_MC_PRIVATE_H */