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authorDan Williams <dan.j.williams@intel.com>2017-07-12 17:58:21 -0700
committerDan Williams <dan.j.williams@intel.com>2019-01-06 21:24:46 -0800
commit51cf784c42d07fbd62cb604836a9270cf3361509 (patch)
tree808f5603d9f6f71f7727b33224d1a79cd958e99c /drivers/dax/bus.h
parent753a0850e707e9a8c5861356222f9b9e4eba7945 (diff)
downloadlinux-51cf784c42d07fbd62cb604836a9270cf3361509.tar.bz2
device-dax: Start defining a dax bus model
Towards eliminating the dax_class, move the dax-device-attribute enabling to a new bus.c file in the core. The amount of code thrash of sub-sequent patches is reduced as no logic changes are made, just pure code movement. A temporary export of unregister_dex_dax() and dax_attribute_groups is needed to preserve compilation, but those symbols become static again in a follow-on patch. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dax/bus.h')
-rw-r--r--drivers/dax/bus.h15
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/dax/bus.h b/drivers/dax/bus.h
new file mode 100644
index 000000000000..840865aa69e8
--- /dev/null
+++ b/drivers/dax/bus.h
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2016 - 2018 Intel Corporation. All rights reserved. */
+#ifndef __DAX_BUS_H__
+#define __DAX_BUS_H__
+struct device;
+struct dev_dax;
+struct resource;
+struct dax_device;
+struct dax_region;
+void dax_region_put(struct dax_region *dax_region);
+struct dax_region *alloc_dax_region(struct device *parent, int region_id,
+ struct resource *res, unsigned int align, unsigned long flags);
+struct dev_dax *devm_create_dev_dax(struct dax_region *dax_region, int id);
+void kill_dev_dax(struct dev_dax *dev_dax);
+#endif /* __DAX_BUS_H__ */