From: Sudeep Holla <sudeep.holla@arm.com>
To: linux-kernel@vger.kernel.org, Radu Rendec <rrendec@redhat.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Pierre Gondois <Pierre.Gondois@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 0/3] arch_topology: Pre-allocate cacheinfo from primary CPU
Date: Mon, 17 Apr 2023 15:07:40 +0100 [thread overview]
Message-ID: <168174033569.1898335.12120283777353899091.b4-ty@arm.com> (raw)
In-Reply-To: <20230412185759.755408-1-rrendec@redhat.com>
On Wed, 12 Apr 2023 14:57:56 -0400, Radu Rendec wrote:
> Commit 5944ce092b97 ("arch_topology: Build cacheinfo from primary CPU")
> tries to build the cacheinfo from the primary CPU prior to secondary
> CPUs boot, if the DT/ACPI description contains cache information.
> However, if such information is not present, it still reverts to the old
> behavior, which allocates the cacheinfo memory on each secondary CPU. On
> RT kernels, this triggers a "BUG: sleeping function called from invalid
> context" because the allocation is done before preemption is first
> enabled on the secondary CPU.
>
> [...]
Applied to sudeep.holla/linux (for-next/cacheinfo), thanks!
[1/3] cacheinfo: Add arch specific early level initializer
https://git.kernel.org/sudeep.holla/c/6539cffa9495
[2/3] cacheinfo: Add arm64 early level initializer implementation
https://git.kernel.org/sudeep.holla/c/c931680cfa95
[3/3] cacheinfo: Allow early level detection when DT/ACPI info is missing/broken
https://git.kernel.org/sudeep.holla/c/e103d55465db
--
Regards,
Sudeep
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linux-arm-kernel@lists.infradead.org
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WARNING: multiple messages have this Message-ID (diff)
From: Sudeep Holla <sudeep.holla@arm.com>
To: linux-kernel@vger.kernel.org, Radu Rendec <rrendec@redhat.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Pierre Gondois <Pierre.Gondois@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 0/3] arch_topology: Pre-allocate cacheinfo from primary CPU
Date: Mon, 17 Apr 2023 15:07:40 +0100 [thread overview]
Message-ID: <168174033569.1898335.12120283777353899091.b4-ty@arm.com> (raw)
In-Reply-To: <20230412185759.755408-1-rrendec@redhat.com>
On Wed, 12 Apr 2023 14:57:56 -0400, Radu Rendec wrote:
> Commit 5944ce092b97 ("arch_topology: Build cacheinfo from primary CPU")
> tries to build the cacheinfo from the primary CPU prior to secondary
> CPUs boot, if the DT/ACPI description contains cache information.
> However, if such information is not present, it still reverts to the old
> behavior, which allocates the cacheinfo memory on each secondary CPU. On
> RT kernels, this triggers a "BUG: sleeping function called from invalid
> context" because the allocation is done before preemption is first
> enabled on the secondary CPU.
>
> [...]
Applied to sudeep.holla/linux (for-next/cacheinfo), thanks!
[1/3] cacheinfo: Add arch specific early level initializer
https://git.kernel.org/sudeep.holla/c/6539cffa9495
[2/3] cacheinfo: Add arm64 early level initializer implementation
https://git.kernel.org/sudeep.holla/c/c931680cfa95
[3/3] cacheinfo: Allow early level detection when DT/ACPI info is missing/broken
https://git.kernel.org/sudeep.holla/c/e103d55465db
--
Regards,
Sudeep
next prev parent reply other threads:[~2023-04-17 14:08 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-12 18:57 [PATCH v4 0/3] arch_topology: Pre-allocate cacheinfo from primary CPU Radu Rendec
2023-04-12 18:57 ` Radu Rendec
2023-04-12 18:57 ` [PATCH v4 1/3] cacheinfo: Add arch specific early level initializer Radu Rendec
2023-04-12 18:57 ` Radu Rendec
2023-05-10 19:12 ` Ricardo Neri
2023-05-10 20:44 ` Radu Rendec
2023-05-11 0:00 ` Ricardo Neri
2023-05-11 19:55 ` Radu Rendec
2023-05-19 21:44 ` Ricardo Neri
2023-05-19 21:44 ` Ricardo Neri
2023-05-19 22:02 ` Radu Rendec
2023-05-19 22:02 ` Radu Rendec
2023-05-15 9:36 ` Sudeep Holla
2023-05-15 9:36 ` Sudeep Holla
2023-05-18 1:27 ` Ricardo Neri
2023-05-18 1:27 ` Ricardo Neri
2023-05-18 9:34 ` Sudeep Holla
2023-05-18 9:34 ` Sudeep Holla
2023-05-31 12:22 ` Sudeep Holla
2023-05-31 12:22 ` Sudeep Holla
2023-05-31 17:03 ` Ricardo Neri
2023-05-31 17:03 ` Ricardo Neri
2023-08-07 23:23 ` Ricardo Neri
2023-08-07 23:23 ` Ricardo Neri
2023-04-12 18:57 ` [PATCH v4 2/3] cacheinfo: Add arm64 early level initializer implementation Radu Rendec
2023-04-12 18:57 ` Radu Rendec
2023-04-13 10:22 ` Sudeep Holla
2023-04-13 10:22 ` Sudeep Holla
2023-04-13 14:45 ` Will Deacon
2023-04-13 14:45 ` Will Deacon
2023-04-13 15:05 ` Sudeep Holla
2023-04-13 15:05 ` Sudeep Holla
2023-04-14 12:46 ` Will Deacon
2023-04-14 12:46 ` Will Deacon
2023-04-12 18:57 ` [PATCH v4 3/3] cacheinfo: Allow early level detection when DT/ACPI info is missing/broken Radu Rendec
2023-04-12 18:57 ` Radu Rendec
2023-04-17 14:07 ` Sudeep Holla [this message]
2023-04-17 14:07 ` [PATCH v4 0/3] arch_topology: Pre-allocate cacheinfo from primary CPU Sudeep Holla
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