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perf/arm-cmn: Ensure port and device id bits are set properly

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[ Upstream commit dfdf714fed559c09021df1d2a4bb64c0ad5f53bc ]

The portid_bits and deviceid_bits were set only for XP type nodes in
the arm_cmn_discover() and it confused other nodes to find XP nodes.
Copy the both bits from the XP nodes directly when it sets up a new
node.

Fixes: e79634b53e39 ("perf/arm-cmn: Refactor node ID handling. Again.")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/20241121001334.331334-1-namhyung@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Namhyung Kim
2024-11-20 16:13:34 -08:00
committed by Greg Kroah-Hartman
parent 9890e6f2ec
commit 03a0e25203
1 changed files with 2 additions and 2 deletions
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4
drivers/perf/arm-cmn.c
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@@ -2075,8 +2075,6 @@ static int arm_cmn_init_dtcs(struct arm_cmn *cmn)
continue;
xp = arm_cmn_node_to_xp(cmn, dn);
dn->portid_bits = xp->portid_bits;
dn->deviceid_bits = xp->deviceid_bits;
dn->dtc = xp->dtc;
dn->dtm = xp->dtm;
if (cmn->multi_dtm)
@@ -2307,6 +2305,8 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
}
arm_cmn_init_node_info(cmn, reg & CMN_CHILD_NODE_ADDR, dn);
dn->portid_bits = xp->portid_bits;
dn->deviceid_bits = xp->deviceid_bits;
switch (dn->type) {
case CMN_TYPE_DTC: