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authorFrederic Barrat <fbarrat@linux.ibm.com>2020-01-22 16:03:34 +0100
committerOliver O'Halloran <oohall@gmail.com>2020-01-29 13:51:35 +1100
commit57d43efd6bbb052b467df3a19ca84feccdd0649b (patch)
tree2f5e7b8edd68207ed69bc36a44201fa6e91b8237 /include
parentda28a6642b79a68d6c8773f149692a3702a31240 (diff)
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npu3: Don't use the device tree to assign the phb-index of the PHB
On Axone, there's a 1-to-1 mapping between virtual PHBs and NPUs. We could keep assigning the phb-index of the virtual PHB from the value found in the npu node of the device tree, but to be consistent with P9/npu2 and avoid confusion, this patch assigns the phb-index when the virtual PHB is created, based on the npu index, similarly to what we do on P9. Reviewed-by: Reza Arbab <arbab@linux.ibm.com> Reviewed-by: Andrew Donnellan <ajd@linux.ibm.com> Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Diffstat (limited to 'include')
-rw-r--r--include/npu3.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/npu3.h b/include/npu3.h
index 1c657f9..0fdad4d 100644
--- a/include/npu3.h
+++ b/include/npu3.h
@@ -177,4 +177,10 @@ int64_t npu3_map_lpar(struct phb *phb, uint64_t bdf, uint64_t lparid,
int64_t npu3_set_relaxed_order(struct phb *phb, uint32_t gcid, int pec,
bool enable);
+#define NPU3_PHB_INDEX_BASE 6 /* immediately after real PHBs */
+static inline int npu3_get_phb_index(unsigned int npu_index)
+{
+ return NPU3_PHB_INDEX_BASE + npu_index;
+}
+
#endif /* __NPU3_H */