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| author | Huacai Chen <chenhc@lemote.com> | 2014-11-04 14:15:07 +0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-11-24 07:45:01 +0100 |
| commit | 89467e73d3881a470ce4ffdcba1d5a5ed618379a (patch) | |
| tree | ab11981430ca14b0d29ee9cd37173c10a17ed837 /arch/mips/oprofile/common.c | |
| parent | 3adeb2566b9bc1dbf579ed515265c6aad756a5cd (diff) | |
| download | linux-0-day-89467e73d3881a470ce4ffdcba1d5a5ed618379a.tar.gz linux-0-day-89467e73d3881a470ce4ffdcba1d5a5ed618379a.tar.xz | |
MIPS: Loongson-3: Add oprofile support
Loongson-3 has two groups of performance counters, they are 4 sub-
registers of CP0's REG25. This patch add oprofile support.
REG25, sel 0: Perf Control of group 0;
REG25, sel 1: Perf Counter of group 0;
REG25, sel 2: Perf Control of group 1;
REG25, sel 3: Perf Counter of group 1.
Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: John Crispin <john@phrozen.org>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/8328/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/oprofile/common.c')
| -rw-r--r-- | arch/mips/oprofile/common.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c index e747324494783..feb987981f55c 100644 --- a/arch/mips/oprofile/common.c +++ b/arch/mips/oprofile/common.c @@ -18,6 +18,7 @@ extern struct op_mips_model op_model_mipsxx_ops __weak; extern struct op_mips_model op_model_loongson2_ops __weak; +extern struct op_mips_model op_model_loongson3_ops __weak; static struct op_mips_model *model; @@ -104,6 +105,9 @@ int __init oprofile_arch_init(struct oprofile_operations *ops) case CPU_LOONGSON2: lmodel = &op_model_loongson2_ops; break; + case CPU_LOONGSON3: + lmodel = &op_model_loongson3_ops; + break; }; if (!lmodel) |