diff options
| author | Hari Bathini <hbathini@linux.ibm.com> | 2019-09-11 20:23:28 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-09-14 00:04:44 +1000 |
| commit | a4e2e2ca2f7bddf6d5d788033cc56f40af6e9c5a (patch) | |
| tree | 05a542bed26853c3f09f7be8d8c06aae10bed3a3 /arch/powerpc | |
| parent | 6071e8f9d5ac960f0d35495f070d4d0b7ae5fc76 (diff) | |
| download | linux-a4e2e2ca2f7bddf6d5d788033cc56f40af6e9c5a.tar.bz2 | |
powerpc/fadump: handle invalidation of crashdump and re-registraion
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
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kernel/fadump.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powernv/opal-fadump.c | 12 |
2 files changed, 18 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c index aab9b4db0363..852ac4761e90 100644 --- a/arch/powerpc/kernel/fadump.c +++ b/arch/powerpc/kernel/fadump.c @@ -1063,7 +1063,13 @@ static void fadump_invalidate_release_mem(void) fadump_release_memory(fw_dump.boot_memory_size, memblock_end_of_DRAM()); fadump_free_cpu_notes_buf(); - /* Initialize the kernel dump memory structure for FAD registration. */ + /* + * Setup kernel metadata and initialize the kernel dump + * memory structure for FADump re-registration. + */ + if (fw_dump.ops->fadump_setup_metadata && + (fw_dump.ops->fadump_setup_metadata(&fw_dump) < 0)) + pr_warn("Failed to setup kernel metadata!\n"); fw_dump.ops->fadump_init_mem_struct(&fw_dump); } diff --git a/arch/powerpc/platforms/powernv/opal-fadump.c b/arch/powerpc/platforms/powernv/opal-fadump.c index 533adae545d8..ef6fb1fc66cb 100644 --- a/arch/powerpc/platforms/powernv/opal-fadump.c +++ b/arch/powerpc/platforms/powernv/opal-fadump.c @@ -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) |