linux-kernel - [PATCH] MIPS: perf: Fix wrong check condition of Loongson event IDs

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Date:   Thu, 27 Aug 2020 16:03:08 +0800
From:   Tiezhu Yang <yangtiezhu@...ngson.cn>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Huacai Chen <chenhc@...ote.com>,
        Jiaxun Yang <jiaxun.yang@...goat.com>
Cc:     linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        Xuefeng Li <lixuefeng@...ngson.cn>
Subject: [PATCH] MIPS: perf: Fix wrong check condition of Loongson event IDs

According to the user's manual chapter 8.2.1 of Loongson 3A2000 CPU [1]
and 3A3000 CPU [2], we should take some event IDs such as 274, 358, 359
and 360 as valid in the check condition, otherwise they are recognized
as "not supported", fix it.

[1] http://www.loongson.cn/uploadfile/cpu/3A2000/Loongson3A2000_user2.pdf
[2] http://www.loongson.cn/uploadfile/cpu/3A3000/Loongson3A3000_3B3000user2.pdf

Fixes: e9dfbaaeef1c ("MIPS: perf: Add hardware perf events support for new Loongson-3")
Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
---
 arch/mips/kernel/perf_event_mipsxx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c
index efce5de..011eb6bb 100644
--- a/arch/mips/kernel/perf_event_mipsxx.c
+++ b/arch/mips/kernel/perf_event_mipsxx.c
@@ -1898,8 +1898,8 @@ static const struct mips_perf_event *mipsxx_pmu_map_raw_event(u64 config)
 				(base_id >= 64 && base_id < 90) ||
 				(base_id >= 128 && base_id < 164) ||
 				(base_id >= 192 && base_id < 200) ||
-				(base_id >= 256 && base_id < 274) ||
-				(base_id >= 320 && base_id < 358) ||
+				(base_id >= 256 && base_id < 275) ||
+				(base_id >= 320 && base_id < 361) ||
 				(base_id >= 384 && base_id < 574))
 				break;
 
-- 
2.1.0