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powerpc/fadump: handle invalidation of crashdump and re-registraion

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Make OPAL call to indicate that the dump is processed and the metadata
area in OPAL can be cleared/released. Also, setup/initialize FADump
for re-registration.

Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/156821356046.5656.12270927048195494911.stgit@hbathini.in.ibm.com
This commit is contained in:
Hari Bathini
2019-09-11 20:23:28 +05:30
committed by Michael Ellerman
parent 6071e8f9d5
commit a4e2e2ca2f
2 changed files with 18 additions and 2 deletions
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12
arch/powerpc/platforms/powernv/opal-fadump.c
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@@ -254,7 +254,17 @@ static int opal_fadump_unregister(struct fw_dump *fadump_conf)
static int opal_fadump_invalidate(struct fw_dump *fadump_conf)
{
return -EIO;
s64 rc;
rc = opal_mpipl_update(OPAL_MPIPL_FREE_PRESERVED_MEMORY, 0, 0, 0);
if (rc) {
pr_err("Failed to invalidate - unexpected Error(%lld).\n", rc);
return -EIO;
}
fadump_conf->dump_active = 0;
opal_fdm_active = NULL;
return 0;
}
static void opal_fadump_cleanup(struct fw_dump *fadump_conf)