diff options
Diffstat (limited to '0001-arm64-kernel-numa-fix-ACPI-boot-cpu-numa-node-mappin.patch')
| -rw-r--r-- | 0001-arm64-kernel-numa-fix-ACPI-boot-cpu-numa-node-mappin.patch | 30 |
1 files changed, 22 insertions, 8 deletions
diff --git a/0001-arm64-kernel-numa-fix-ACPI-boot-cpu-numa-node-mappin.patch b/0001-arm64-kernel-numa-fix-ACPI-boot-cpu-numa-node-mappin.patch index bfe4c9630..7be04148c 100644 --- a/0001-arm64-kernel-numa-fix-ACPI-boot-cpu-numa-node-mappin.patch +++ b/0001-arm64-kernel-numa-fix-ACPI-boot-cpu-numa-node-mappin.patch @@ -1,7 +1,20 @@ -From 23339319c91c79986976381d4cea75f6608dee68 Mon Sep 17 00:00:00 2001 +From patchwork Mon Oct 17 14:56:49 2016 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +Subject: [v2] arm64: kernel: numa: fix ACPI boot cpu numa node mapping From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> -Date: Mon, 17 Oct 2016 15:18:48 +0100 -Subject: [PATCH] arm64: kernel: numa: fix ACPI boot cpu numa node mapping +X-Patchwork-Id: 9379531 +Message-Id: <20161017145649.6189-1-lorenzo.pieralisi@arm.com> +To: linux-arm-kernel@lists.infradead.org +Cc: Andrew Jones <drjones@redhat.com>, + Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, + Catalin Marinas <catalin.marinas@arm.com>, + Will Deacon <will.deacon@arm.com>, + linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, + Hanjun Guo <hanjun.guo@linaro.org>, + Zhen Lei <thunder.leizhen@huawei.com>, Laszlo Ersek <lersek@redhat.com> +Date: Mon, 17 Oct 2016 15:56:49 +0100 Commit 7ba5f605f3a0 ("arm64/numa: remove the limitation that cpu0 must bind to node0") removed the numa cpu<->node mapping restriction whereby @@ -9,8 +22,8 @@ logical cpu 0 always corresponds to numa node 0; removing the restriction was correct, in that it does not really exist in practice but the commit only updated the early mapping of logical cpu 0 to its real numa node for the DT boot path, missing the ACPI one, leading to -boot failures on ACPI systems with numa enabled owing to missing -node<->cpu map for logical cpu 0. +boot failures on ACPI systems owing to missing cpu<->node map for +logical cpu 0. Fix the issue by updating the ACPI boot path with code that carries out the early cpu<->node mapping also for the boot cpu (ie cpu 0), mirroring @@ -26,7 +39,11 @@ Cc: Hanjun Guo <hanjun.guo@linaro.org> Cc: Andrew Jones <drjones@redhat.com> Cc: Zhen Lei <thunder.leizhen@huawei.com> Cc: Catalin Marinas <catalin.marinas@arm.com> +Acked-by: Hanjun Guo <hanjun.guo@linaro.org> --- +v1 -> v2 + - Updated commit log to reflect boot failures set-ups + arch/arm64/kernel/smp.c | 1 + 1 file changed, 1 insertion(+) @@ -42,6 +59,3 @@ index d3f151c..8507703 100644 return; } --- -2.7.4 - |