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author | Daniel Axtens <dja@axtens.net> | 2015-08-14 09:41:23 +0200 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-08-14 13:32:07 +0200 |
commit | d76427b0d89524fdb623774a22a005ba5c400134 (patch) | |
tree | 5053cc9f7734153dfa48dadf091133327d6ff0a6 /drivers/misc/genwqe | |
parent | cxl: Refactor adaptor init/teardown (diff) | |
download | linux-d76427b0d89524fdb623774a22a005ba5c400134.tar.xz linux-d76427b0d89524fdb623774a22a005ba5c400134.zip |
cxl: Refactor AFU init/teardown
As with an adapter, some aspects of initialisation are done only once
in the lifetime of an AFU: for example, allocating memory, or setting
up sysfs/debugfs files.
However, we may want to be able to do some parts of the initialisation
multiple times: for example, in error recovery we want to be able to
tear down and then re-map IO memory and IRQs.
Therefore, refactor AFU init/teardown as follows.
- Create two new functions: 'cxl_configure_afu', and its pair
'cxl_deconfigure_afu'. As with the adapter functions,
these (de)configure resources that do not need to last the entire
lifetime of the AFU.
- Allocating and releasing memory remain the task of 'cxl_alloc_afu'
and 'cxl_release_afu'.
- Once-only functions that do not involve allocating/releasing memory
stay in the overarching 'cxl_init_afu'/'cxl_remove_afu' pair.
However, the task of picking an AFU mode and activating it has been
broken out.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc/genwqe')
0 files changed, 0 insertions, 0 deletions