From 05d6f6d346fea2fa4580a0c2b6be207456bebb08 Mon Sep 17 00:00:00 2001 From: Ilkka Koskinen Date: Mon, 8 Aug 2022 12:54:55 -0700 Subject: perf/arm-cmn: Add more bits to child node address offset field CMN-600 uses bits [27:0] for child node address offset while bits [30:28] are required to be zero. For CMN-650, the child node address offset field has been increased to include bits [29:0] while leaving only bit 30 set to zero. Let's include the missing two bits and assume older implementations comply with the spec and set bits [29:28] to 0. Signed-off-by: Ilkka Koskinen Fixes: 60d1504070c2 ("perf/arm-cmn: Support new IP features") Reviewed-by: Robin Murphy Link: https://lore.kernel.org/r/20220808195455.79277-1-ilkka@os.amperecomputing.com Signed-off-by: Will Deacon --- drivers/perf/arm-cmn.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c index 80d8309652a4..b80a9b74662b 100644 --- a/drivers/perf/arm-cmn.c +++ b/drivers/perf/arm-cmn.c @@ -36,7 +36,7 @@ #define CMN_CI_CHILD_COUNT GENMASK_ULL(15, 0) #define CMN_CI_CHILD_PTR_OFFSET GENMASK_ULL(31, 16) -#define CMN_CHILD_NODE_ADDR GENMASK(27, 0) +#define CMN_CHILD_NODE_ADDR GENMASK(29, 0) #define CMN_CHILD_NODE_EXTERNAL BIT(31) #define CMN_MAX_DIMENSION 12 -- cgit v1.2.3