diff options
| author | Daniel Axtens <dja@axtens.net> | 2015-08-14 17:41:25 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-08-14 21:32:07 +1000 |
| commit | 13e68d8bd05c998cae452a4f3400af1e8edd852e (patch) | |
| tree | d17ff97c9f46a663b5cb4916fc333703b2cdfea4 /drivers/misc/cxl/api.c | |
| parent | 4e1efb403c1c016ae831bd9988a7d2e5e0af41a0 (diff) | |
| download | blackbird-obmc-linux-13e68d8bd05c998cae452a4f3400af1e8edd852e.tar.gz blackbird-obmc-linux-13e68d8bd05c998cae452a4f3400af1e8edd852e.zip | |
cxl: Allow the kernel to trust that an image won't change on PERST.
Provide a kernel API and a sysfs entry which allow a user to specify
that when a card is PERSTed, it's image will stay the same, allowing
it to participate in EEH.
cxl_reset is used to reflash the card. In that case, we cannot safely
assert that the image will not change. Therefore, disallow cxl_reset
if the flag is set.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc/cxl/api.c')
| -rw-r--r-- | drivers/misc/cxl/api.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c index 729e0851167d..6a768a9ad22f 100644 --- a/drivers/misc/cxl/api.c +++ b/drivers/misc/cxl/api.c @@ -327,3 +327,10 @@ int cxl_afu_reset(struct cxl_context *ctx) return cxl_afu_check_and_enable(afu); } EXPORT_SYMBOL_GPL(cxl_afu_reset); + +void cxl_perst_reloads_same_image(struct cxl_afu *afu, + bool perst_reloads_same_image) +{ + afu->adapter->perst_same_image = perst_reloads_same_image; +} +EXPORT_SYMBOL_GPL(cxl_perst_reloads_same_image); |
