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author | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2021-08-04 12:50:56 +0530 |
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committer | Vasant Hegde <hegdevasant@linux.vnet.ibm.com> | 2021-08-06 12:21:54 +0530 |
commit | e813a0c09dc08aea7144425e1d4ee6c9134e9f47 (patch) | |
tree | ade061281b32f874a42e5ad4c8ea502a14800764 /hdata/spira.c | |
parent | a2d4d7f9e14a387371815828e4d46a9943453969 (diff) | |
download | skiboot-e813a0c09dc08aea7144425e1d4ee6c9134e9f47.zip skiboot-e813a0c09dc08aea7144425e1d4ee6c9134e9f47.tar.gz skiboot-e813a0c09dc08aea7144425e1d4ee6c9134e9f47.tar.bz2 |
phys/P10: Use topology index to get phys mapping
This fixes multipchip rainier boot issue.
for Rainer:
chip0: ibm,primary-topology-index = < 0x0>;
chip1: ibm,primary-topology-index = < 0x4>;
chip2: ibm,primary-topology-index = < 0x8>;
chip3: ibm,primary-topology-index = < 0xc>;
for Denali:
node0:
chip0: ibm,primary-topology-index = < 0x0>;
chip1: ibm,primary-topology-index = < 0x1>;
chip2: ibm,primary-topology-index = < 0x2>;
chip3: ibm,primary-topology-index = < 0x3>;
node1:
chip0: ibm,primary-topology-index = < 0x4>;
chip1: ibm,primary-topology-index = < 0x5>;
chip2: ibm,primary-topology-index = < 0x6>;
chip3: ibm,primary-topology-index = < 0x7>;
Note that bmc_create_node() gets called very early in the boot process.
Hence we have to traverse through HDAT ntuple to get right topology index.
May be we can optimize pcid_to_topology_idx() function as its pretty
much duplicate of pcid_to_chip_id(). But for now lets keep it as
separate function.
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Ryan Grimm <grimm@linux.ibm.com>
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Diffstat (limited to 'hdata/spira.c')
-rw-r--r-- | hdata/spira.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/hdata/spira.c b/hdata/spira.c index 7d56f3f..baa2375 100644 --- a/hdata/spira.c +++ b/hdata/spira.c @@ -1418,6 +1418,34 @@ uint32_t pcid_to_chip_id(uint32_t proc_chip_id) return (uint32_t)-1; } +uint32_t pcid_to_topology_idx(uint32_t proc_chip_id) +{ + unsigned int i; + const void *hdif; + + /* First, try the proc_chip ntuples for chip data */ + for_each_ntuple_idx(&spira.ntuples.proc_chip, hdif, i, + SPPCRD_HDIF_SIG) { + const struct sppcrd_chip_info *cinfo; + + cinfo = HDIF_get_idata(hdif, SPPCRD_IDATA_CHIP_INFO, NULL); + if (!CHECK_SPPTR(cinfo)) { + prerror("XSCOM: Bad ChipID data %d\n", i); + continue; + } + if (proc_chip_id == be32_to_cpu(cinfo->proc_chip_id)) { + if (proc_gen <= proc_gen_p9) + return get_xscom_id(cinfo); + else + return ((u32)cinfo->topology_id_table[cinfo->primary_topology_loc]); + } + } + + /* Not found, what to do ? Assert ? For now return a number + * guaranteed to not exist + */ + return (uint32_t)-1; +} /* Create '/ibm,opal/led' node */ static void dt_init_led_node(void) { |