From 67dcc43f3a22dc3a7ac07a7065971b426feeb043 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Mon, 23 Dec 2019 13:42:55 +0100 Subject: brcm2708: organize kernel patches MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Álvaro Fernández Rojas --- ...646-arm64-mm-Limit-the-DMA-zone-for-arm64.patch | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 target/linux/brcm2708/patches-4.19/950-0646-arm64-mm-Limit-the-DMA-zone-for-arm64.patch (limited to 'target/linux/brcm2708/patches-4.19/950-0646-arm64-mm-Limit-the-DMA-zone-for-arm64.patch') diff --git a/target/linux/brcm2708/patches-4.19/950-0646-arm64-mm-Limit-the-DMA-zone-for-arm64.patch b/target/linux/brcm2708/patches-4.19/950-0646-arm64-mm-Limit-the-DMA-zone-for-arm64.patch new file mode 100644 index 0000000000..41261cd0d1 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0646-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 +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 +--- + 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 -- cgit v1.2.3