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| author | Dan Williams <dan.j.williams@intel.com> | 2018-10-29 15:52:42 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2019-01-06 21:26:21 -0800 |
| commit | 89ec9f2cfa36cc5fca2fb445ed221bb9add7b536 (patch) | |
| tree | 1306755d2ecae784ddee3df710c16c4cfeaff771 /drivers/dax/dax-private.h | |
| parent | 9567da0b408a2553d32ca83cba4f1fc5a8aad459 (diff) | |
| download | linux-89ec9f2cfa36cc5fca2fb445ed221bb9add7b536.tar.bz2 | |
device-dax: Move resource pinning+mapping into the common driver
Move the responsibility of calling devm_request_resource() and
devm_memremap_pages() into the common device-dax driver. This is another
preparatory step to allowing an alternate personality driver for a
device-dax range.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dax/dax-private.h')
| -rw-r--r-- | drivers/dax/dax-private.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/dax/dax-private.h b/drivers/dax/dax-private.h index c3a121700837..a82ce48f5884 100644 --- a/drivers/dax/dax-private.h +++ b/drivers/dax/dax-private.h @@ -42,15 +42,22 @@ struct dax_region { }; /** - * struct dev_dax - instance data for a subdivision of a dax region + * struct dev_dax - instance data for a subdivision of a dax region, and + * data while the device is activated in the driver. * @region - parent region * @dax_dev - core dax functionality * @dev - device core + * @pgmap - pgmap for memmap setup / lifetime (driver owned) + * @ref: pgmap reference count (driver owned) + * @cmp: @ref final put completion (driver owned) */ struct dev_dax { struct dax_region *region; struct dax_device *dax_dev; struct device dev; + struct dev_pagemap pgmap; + struct percpu_ref ref; + struct completion cmp; }; static inline struct dev_dax *to_dev_dax(struct device *dev) |