From dd96b6227591d8a616b64a8601a86a26d2d0be23 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Igor=20Pe=C4=8Dovnik?=
 <igorpecovnik@users.noreply.github.com>
Date: Sun, 2 Aug 2020 10:14:34 +0200
Subject: [PATCH] Add basic optimisations for ODROID N2 / G12b family (#2124)

Based on https://github.com/armbian/build/commit/5030cef51c88637b730d095d752286a3320d1e8d
---
 .../usr/lib/armbian/armbian-hardware-optimization     | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/packages/bsp/common/usr/lib/armbian/armbian-hardware-optimization b/packages/bsp/common/usr/lib/armbian/armbian-hardware-optimization
index c38b4a312c..e6097032ca 100755
--- a/packages/bsp/common/usr/lib/armbian/armbian-hardware-optimization
+++ b/packages/bsp/common/usr/lib/armbian/armbian-hardware-optimization
@@ -98,6 +98,17 @@ prepare_board() {
 			echo 8 >/proc/irq/$(awk -F":" "/ethernet/ {print \$1}" </proc/interrupts | sed 's/\ //g' | head -1)/smp_affinity 2>/dev/null
 			echo 7 >/sys/class/net/eth0/queues/rx-0/rps_cpus
 			;;
+		meson-g12b) # S922X/A311D: ODROID N2, possibly VIM3, cpu0/cpu1 are the little ones
+			# MMC on cpu1, USB3 on cpu2, Ethernet on cpu3, rdma on cpu4, vsync on cpu5
+			for i in $(awk -F':' '/mmc/{print $1}' </proc/interrupts | sed 's/\ //g'); do
+				echo 1 >/proc/irq/$i/smp_affinity_list
+			done
+			echo 2 >/proc/irq/$(awk -F":" "/xhci-hcd/ {print \$1}" </proc/interrupts | sed 's/\ //g')/smp_affinity_list
+			echo 3 >/proc/irq/$(awk -F":" "/eth0/ {print \$1}" </proc/interrupts | sed 's/\ //g')/smp_affinity_list
+			# mainline kernel might lack those
+			[[ -n $(cat /proc/interrupts | grep "rdma") ]] && echo 4 >/proc/irq/$(awk -F":" "/rdma/ {print \$1}" </proc/interrupts | sed 's/\ //g')/smp_affinity_list
+			[[ -n $(cat /proc/interrupts | grep "osd-vsync") ]] echo 5 >/proc/irq/$(awk -F":" "/ osd-vsync/ {print \$1}" </proc/interrupts | sed 's/\ //g')/smp_affinity_list
+			;;
 		mvebu*) # Clearfog/Turris/Helios4/Espressobin: Send network IRQs to cpu1 on both kernels
 			for i in $(awk -F':' '/mwlwifi|mvneta|eth0/{print $1}' /proc/interrupts | sed 's/\ //g'); do
 				echo 2 >/proc/irq/$i/smp_affinity