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| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2020-02-04 19:02:53 +0100 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2020-02-04 19:14:13 +0100 |
| commit | 84d555aa74434392b682fd9eb0fa701c89a046d6 (patch) | |
| tree | bcc0a9bf058757da14054bce61a8cb8b8c9cd873 /target/linux/brcm2708/patches-4.19/950-0616-arm64-mm-Limit-the-DMA-zone-for-arm64.patch | |
| parent | 953973c2991e8640549a55df7a0574a1abac8644 (diff) | |
| download | upstream-84d555aa74434392b682fd9eb0fa701c89a046d6.tar.gz upstream-84d555aa74434392b682fd9eb0fa701c89a046d6.tar.bz2 upstream-84d555aa74434392b682fd9eb0fa701c89a046d6.zip | |
brcm2708: update to latest patches from RPi foundation
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0616-arm64-mm-Limit-the-DMA-zone-for-arm64.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0616-arm64-mm-Limit-the-DMA-zone-for-arm64.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0616-arm64-mm-Limit-the-DMA-zone-for-arm64.patch b/target/linux/brcm2708/patches-4.19/950-0616-arm64-mm-Limit-the-DMA-zone-for-arm64.patch new file mode 100644 index 0000000000..41261cd0d1 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0616-arm64-mm-Limit-the-DMA-zone-for-arm64.patch @@ -0,0 +1,25 @@ +From 2722f08c4c59901bd506184e2dcbbbd532aef0b3 Mon Sep 17 00:00:00 2001 +From: Andrei Gherzan <andrei@balena.io> +Date: Tue, 16 Jul 2019 13:28:22 +0100 +Subject: [PATCH] arm64/mm: Limit the DMA zone for arm64 + +On RaspberryPi, only the first 1Gb can be used for DMA[1]. + +[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2019-July/665986.html + +Signed-off-by: Andrei Gherzan <andrei@balena.io> +--- + arch/arm64/mm/init.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/arch/arm64/mm/init.c ++++ b/arch/arm64/mm/init.c +@@ -224,7 +224,7 @@ static void __init reserve_elfcorehdr(vo + static phys_addr_t __init max_zone_dma_phys(void) + { + phys_addr_t offset = memblock_start_of_DRAM() & GENMASK_ULL(63, 32); +- return min(offset + (1ULL << 32), memblock_end_of_DRAM()); ++ return min(offset + (1ULL << 30), memblock_end_of_DRAM()); + } + + #ifdef CONFIG_NUMA |