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Message-ID: <20250731132156.000015ec@huawei.com>
Date: Thu, 31 Jul 2025 13:21:56 +0100
From: Jonathan Cameron <Jonathan.Cameron@...wei.com>
To: Yushan Wang <wangyushan12@...wei.com>
CC: <will@...nel.org>, <mark.rutland@....com>,
<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
<prime.zeng@...ilicon.com>, <fanghao11@...wei.com>, <linuxarm@...wei.com>,
<yangyicong@...ilicon.com>
Subject: Re: [PATCH 5/8] drivers/perf: hisi: Extend the field of tt_core
On Tue, 29 Jul 2025 23:38:20 +0800
Yushan Wang <wangyushan12@...wei.com> wrote:
> From: Yicong Yang <yangyicong@...ilicon.com>
>
> Currently the tt_core's using config1's bit [7, 0] and can not be
> extended. For some platforms there's more the 8 CPUs sharing the
> L3 cache. So make tt_core use config2's bit [15, 0] and the remaining
> bits in config2 is reserved for extension.
>
> Signed-off-by: Yicong Yang <yangyicong@...ilicon.com>
> Signed-off-by: Yushan Wang <wangyushan12@...wei.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@...wei.com>
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