This is a note to let you know that I've just added the patch titled
arm64: mm: Move reserve_crashkernel() into mem_init()
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-mm-move-reserve_crashkernel-into-mem_init.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Sun Mar 7 04:22:37 PM CET 2021
From: Jing Xiangfeng <jingxiangfeng@xxxxxxxxxx>
Date: Wed, 3 Mar 2021 15:33:13 +0800
Subject: arm64: mm: Move reserve_crashkernel() into mem_init()
To: <gregkh@xxxxxxxxxxxxxxxxxxx>, <catalin.marinas@xxxxxxx>, <will@xxxxxxxxxx>, <akpm@xxxxxxxxxxxxxxxxxxxx>, <nsaenzjulienne@xxxxxxx>, <paul.walmsley@xxxxxxxxxx>, <palmer@xxxxxxxxxxx>, <aou@xxxxxxxxxxxxxxxxx>, <rppt@xxxxxxxxxx>, <lorenzo.pieralisi@xxxxxxx>, <guohanjun@xxxxxxxxxx>, <sudeep.holla@xxxxxxx>, <rjw@xxxxxxxxxxxxx>, <lenb@xxxxxxxxxx>, <song.bao.hua@xxxxxxxxxxxxx>, <ardb@xxxxxxxxxx>, <anshuman.khandual@xxxxxxx>, <bhelgaas@xxxxxxxxxx>, <guro@xxxxxx>, <robh+dt@xxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>, <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, <frowand.list@xxxxxxxxx>, <devicetree@xxxxxxxxxxxxxxx>, <linux-kernel@xxxxxxxxxxxxxxx>, <linux-mm@xxxxxxxxx>, <linux-riscv@xxxxxxxxxxxxxxxxxxx>, <jingxiangfeng@xxxxxxxxxx>, <wangkefeng.wang@xxxxxxxxxx>, Jeremy Linton <jeremy.linton@xxxxxxx>
Message-ID: <20210303073319.2215839-2-jingxiangfeng@xxxxxxxxxx>
From: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx>
commit 0a30c53573b07d5561457e41fb0ab046cd857da5 upstream
crashkernel might reserve memory located in ZONE_DMA. We plan to delay
ZONE_DMA's initialization after unflattening the devicetree and ACPI's
boot table initialization, so move it later in the boot process.
Specifically into bootmem_init() since request_standard_resources()
depends on it.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@xxxxxxx>
Tested-by: Jeremy Linton <jeremy.linton@xxxxxxx>
Link: https://lore.kernel.org/r/20201119175400.9995-2-nsaenzjulienne@xxxxxxx
Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Jing Xiangfeng <jingxiangfeng@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/arm64/mm/init.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -386,8 +386,6 @@ void __init arm64_memblock_init(void)
else
arm64_dma32_phys_limit = PHYS_MASK + 1;
- reserve_crashkernel();
-
reserve_elfcorehdr();
high_memory = __va(memblock_end_of_DRAM() - 1) + 1;
@@ -427,6 +425,12 @@ void __init bootmem_init(void)
sparse_init();
zone_sizes_init(min, max);
+ /*
+ * request_standard_resources() depends on crashkernel's memory being
+ * reserved, so do it here.
+ */
+ reserve_crashkernel();
+
memblock_dump_all();
}
Patches currently in stable-queue which might be from jingxiangfeng@xxxxxxxxxx are
queue-5.10/of-unittest-add-test-for-of_dma_get_max_cpu_address.patch
queue-5.10/mm-remove-examples-from-enum-zone_type-comment.patch
queue-5.10/arm64-mm-set-zone_dma-size-based-on-devicetree-s-dma-ranges.patch
queue-5.10/of-address-introduce-of_dma_get_max_cpu_address.patch
queue-5.10/arm64-mm-move-zone_dma_bits-initialization-into-zone_sizes_init.patch
queue-5.10/arm64-mm-set-zone_dma-size-based-on-early-iort-scan.patch
queue-5.10/arm64-mm-move-reserve_crashkernel-into-mem_init.patch
