diff options
| author | Namhyung Kim <namhyung@kernel.org> | 2024-11-20 16:13:34 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-05 14:03:06 +0100 |
| commit | 6e7724e319ae5f8a68f116edee7e1972855947e1 (patch) | |
| tree | 4c357e56002434292ca2d4dc41b878983aa9eccd | |
| parent | a476aba86d0fb8bcf6aa2fdf489371530da7ec56 (diff) | |
perf/arm-cmn: Ensure port and device id bits are set properly
[ 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>
| -rw-r--r-- | drivers/perf/arm-cmn.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c index 397a46410f7c..30506c43776f 100644 --- a/drivers/perf/arm-cmn.c +++ b/drivers/perf/arm-cmn.c @@ -2178,8 +2178,6 @@ 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) @@ -2420,6 +2418,8 @@ 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: |