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airoha: npu: Init BA memory region if provided via DTS

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Initialize NPU Block Ack memory region if reserved via DTS.
Block Ack memory region is used by NPU MT7996 (Eagle) offloading.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://github.com/openwrt/openwrt/pull/22289
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Lorenzo Bianconi 2025-10-24 17:10:08 +02:00 • committed by Christian Marangi
parent eb4fd65c92
commit 305f685f83
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2 changed files with 42 additions and 2 deletions
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10
target/linux/airoha/dts/an7581.dtsi
View file

@ -54,6 +54,11 @@
no-map;
reg = <0x0 0x90c00000 0x0 0x6800>;
};
npu_ba: npu-ba@90c06800 {
no-map;
reg = <0x0 0x90c06800 0x0 0x200000>;
};
};
psci {
@ -855,9 +860,10 @@
<GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
memory-region = <&npu_binary>, <&npu_pkt>, <&npu_txpkt>,
<&npu_txbufid>;
<&npu_txbufid>, <&npu_ba>;
memory-region-names = "binary", "pkt", "tx-pkt",
"tx-bufid";
"tx-bufid", "ba";
status = "disabled";
};
eth: ethernet@1fb50000 {

34
target/linux/airoha/patches-6.12/910-01-v7.0-net-airoha-npu-Init-BA-memory-region-if.patch Normal file
View file

@ -0,0 +1,34 @@
From 875a59c9a9e584d99d8e9e5aa8435ec9300bfe91 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Thu, 8 Jan 2026 16:05:08 +0100
Subject: [PATCH] net: airoha: npu: Init BA memory region if provided via DTS
Initialize NPU Block Ack memory region if reserved via DTS.
Block Ack memory region is used by NPU MT7996 (Eagle) offloading.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260108-airoha-ba-memory-region-v3-2-bf1814e5dcc4@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/ethernet/airoha/airoha_npu.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/net/ethernet/airoha/airoha_npu.c b/drivers/net/ethernet/airoha/airoha_npu.c
index 22f72c14606599..a56b3780bb627c 100644
--- a/drivers/net/ethernet/airoha/airoha_npu.c
+++ b/drivers/net/ethernet/airoha/airoha_npu.c
@@ -519,6 +519,14 @@ static int airoha_npu_wlan_init_memory(struct airoha_npu *npu)
if (err)
return err;
+ if (of_property_match_string(npu->dev->of_node, "memory-region-names",
+ "ba") >= 0) {
+ cmd = WLAN_FUNC_SET_WAIT_DRAM_BA_NODE_ADDR;
+ err = airoha_npu_wlan_set_reserved_memory(npu, 0, "ba", cmd);
+ if (err)
+ return err;
+ }
+
cmd = WLAN_FUNC_SET_WAIT_IS_FORCE_TO_CPU;
return airoha_npu_wlan_msg_send(npu, 0, cmd, &val, sizeof(val),
GFP_KERNEL);