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| author | Sahil Mehta | 2017-02-15 19:45:56 +0100 |
|---|---|---|
| committer | Michael Ellerman | 2017-02-17 07:57:30 +0100 |
| commit | 333f7b76865bec24c66710cf352f892d69e3ba0a (patch) | |
| tree | 0fab9fb29b3b62927c1113598e327b5a0069d67a /arch/powerpc/include/asm/rtas.h | |
| parent | powerpc/mm: Blacklist SLB symbols from kprobe (diff) | |
| download | kernel-qcow2-linux-333f7b76865bec24c66710cf352f892d69e3ba0a.tar.gz kernel-qcow2-linux-333f7b76865bec24c66710cf352f892d69e3ba0a.tar.xz kernel-qcow2-linux-333f7b76865bec24c66710cf352f892d69e3ba0a.zip | |
powerpc/pseries: Implement indexed-count hotplug memory add
Indexed-count add for memory hotplug guarantees that a contiguous block
of <count> lmbs beginning at a specified <drc index> will be assigned,
any LMBs in this range that are not already assigned will be DLPAR added.
Because of Qemu's per-DIMM memory management, the addition of a contiguous
block of memory currently requires a series of individual calls to add
each LMB in the block. Indexed-count add reduces this series of calls to
a single call for the entire block.
Signed-off-by: Sahil Mehta <sahilmehta17@gmail.com>
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/rtas.h')
| -rw-r--r-- | arch/powerpc/include/asm/rtas.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h index 076b89247ab5..ec9dd79398ee 100644 --- a/arch/powerpc/include/asm/rtas.h +++ b/arch/powerpc/include/asm/rtas.h @@ -307,6 +307,7 @@ struct pseries_hp_errorlog { union { __be32 drc_index; __be32 drc_count; + struct { __be32 count, index; } ic; char drc_name[1]; } _drc_u; }; @@ -323,6 +324,7 @@ struct pseries_hp_errorlog { #define PSERIES_HP_ELOG_ID_DRC_NAME 1 #define PSERIES_HP_ELOG_ID_DRC_INDEX 2 #define PSERIES_HP_ELOG_ID_DRC_COUNT 3 +#define PSERIES_HP_ELOG_ID_DRC_IC 4 struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log, uint16_t section_id); |