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ANDROID: scsi: ufs: add vendor hook to override key reprogramming

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Some hardware has a way to restore all keyslots at once that is
significantly faster than restoring each keyslot individually, as is
done by blk_ksm_reprogram_all_keys().  Add a hook
"android_rvh_ufs_reprogram_all_keys" that allows overriding the
restoration of all keyslots after UFS reset.  This may sleep, so this
must be a "restricted" Android vendor hook rather than a regular one.

Note that currently this functionality can't be upstreamed, as support
for the hardware that needs it would need to be upstreamed first.

Bug: 162257402
Bug: 181905172
Change-Id: I0b25393a5131941f085892560e08a64e63cd1369
Signed-off-by: Eric Biggers <ebiggers@google.com>
This commit is contained in:
Eric Biggers
2021-07-26 09:27:15 -07:00
parent 198e728044
commit e2e063f507
3 changed files with 15 additions and 2 deletions
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1
drivers/android/vendor_hooks.c
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@@ -213,6 +213,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_filemap_fault_cache_page);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_enable_thermal_genl_check);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_thermal_pm_notify_suspend);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_fill_prdt);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_ufs_reprogram_all_keys);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_prepare_command);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_update_sysfs);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ufs_send_command);