diff options
author | Wu Hao <hao.wu@intel.com> | 2018-06-30 03:53:11 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-15 14:55:44 +0300 |
commit | 99a560bde313892f87ca81db568a829d3d205882 (patch) | |
tree | 3079d0343af5c0113b6924ec87b81206f64aa11b | |
parent | ecb5fbe299dfaad778033259f35bc696fa1fb743 (diff) | |
download | linux-99a560bde313892f87ca81db568a829d3d205882.tar.xz |
fpga: mgr: add compat_id support
This patch introduces compat_id support to fpga manager, it adds
a fpga_compat_id pointer to fpga manager data structure to allow
fpga manager drivers to save the compatibility id. This compat_id
could be used for compatibility checking before doing partial
reconfiguration to associated fpga regions.
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | include/linux/fpga/fpga-mgr.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/fpga/fpga-mgr.h b/include/linux/fpga/fpga-mgr.h index e249b7250345..8942e61f0028 100644 --- a/include/linux/fpga/fpga-mgr.h +++ b/include/linux/fpga/fpga-mgr.h @@ -136,11 +136,23 @@ struct fpga_manager_ops { #define FPGA_MGR_STATUS_FIFO_OVERFLOW_ERR BIT(4) /** + * struct fpga_compat_id - id for compatibility check + * + * @id_h: high 64bit of the compat_id + * @id_l: low 64bit of the compat_id + */ +struct fpga_compat_id { + u64 id_h; + u64 id_l; +}; + +/** * struct fpga_manager - fpga manager structure * @name: name of low level fpga manager * @dev: fpga manager device * @ref_mutex: only allows one reference to fpga manager * @state: state of fpga manager + * @compat_id: FPGA manager id for compatibility check. * @mops: pointer to struct of fpga manager ops * @priv: low level driver private date */ @@ -149,6 +161,7 @@ struct fpga_manager { struct device dev; struct mutex ref_mutex; enum fpga_mgr_states state; + struct fpga_compat_id *compat_id; const struct fpga_manager_ops *mops; void *priv; }; |