From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f41.google.com (mail-oa1-f41.google.com [209.85.160.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 481B421CA0D for ; Thu, 19 Feb 2026 00:40:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.41 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771461629; cv=none; b=KZmBZh3LnRHa8L8z6jr8BBStfY8qZ2oI8qbIv/1cTJbw7fDX+GIA9/LQk7U40R7i4JOefZwSGUgkVDIE6Ao44Jq6jrxCcZN5oRLDuc2haCMNuKTK8SSo4KvPsbaH7+uEkxJhFOies5sk0zJConFBZt6v8dOe0qZSdrJjly2+QpI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771461629; c=relaxed/simple; bh=gLbcxsvMfBs+N5v0NGbO8TPqMVB+Atm7jc9GjQ5hBTk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VOX0SdgQU4sGdDhq1BAGHj8o9IgbBAbXkjAaH1F1Jov4FL4VoDlKrToe99FInxC11i1KYblxihUmLZNKWe99CnTRdCS+mDPS0HAHMTSVIOCVJMqdY1QE1w/0s6FEzEVzokSvuLAtre+9Fi/qwdbjS1cZEw9zyOFR3It4WXkbp34= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=kernel.org; spf=pass smtp.mailfrom=gmail.com; arc=none smtp.client-ip=209.85.160.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=kernel.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-oa1-f41.google.com with SMTP id 586e51a60fabf-40ed9a23aaeso128938fac.1 for ; Wed, 18 Feb 2026 16:40:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1771461627; x=1772066427; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=kdvSYvr5NMYBqMkb8DQrSUZYlW2kwKMB4kHjYgxFfio=; b=itCbmxLHSTHR5ElBuGJU9l1j722pbmGWGsV6liZT11p+VFLLOX+SgBX0cdg+QvuUF3 XtXJuVCsv6LPnUEzXEMsSsEyOoVtKaoVu/DJX8+AHw5R1RBSF6WJH/HS3Bswkubvc9La +XZ+aN2XykJYbeD7v2q1AbqOpU49NjUe2mOLPpFusKhpcac8oQtQq7wtcpglJL12WCr0 l52qeqEYPOJ4JhfXXRZIGyScgY3dOnVYU1emDnzd9RB8buOhck/c99QfEGBo0Oj6fSmc AYE2G2Z1WsfHkBmDeyVKVdq8CZhVP0F2XqsQeKhDxdLcA1t0yn7Jmr1tBsUTVPxILpxi mpog== X-Gm-Message-State: AOJu0YxBOIZfGt52LuBU4FzlD+Rd3p6VW6xlEuH21h/Jub6ICAZOyacN dBqSpE3NCP5NjwWGlEEKE40gs1X6U/rMD8hbyLaeaKa8PuTawsYeWJM6 X-Gm-Gg: AZuq6aJ1D3tIywiLSDKfIE+BPctvNsxDz5B0j4S3O5aDU1M79tKU9cDqtDnJ4aSEKlO WpNkKqY2IyuGLELdERZwOOGZVwwoq9VPiiz6RaYMTbN3ZwTF/Zf6LoLSlRj/M1vgEVwiFS8bV8j pAhE8jCXZ1iYQvFbGiZW1VMReZPTNHCtVHM1bUtuYH9V05Es6xA6D9qP+0zrOUgjYsbLQpDmzxa D6sqyb7x2h/s7GLiLueSWKUQr/03uTqqWDP1sEfhdkO9K9pFAlPkYXLvHgeEjusbb8j1yOp3JgE YwP0aZszioY4xnQQ5i1xGKCt+dHVuiRbv7fRVr8rkMy6i23cN9FQ0m9/o/K3vXrAD8BjgX4VRCa D8WZP88auLpnh7TCwAeMQHs+7fA5+4pd5ZmgLFxlKKbm8YHZ2qdDW8947NInthWds+Slnp+LR/C NqTAgKtaFnpeu3pPv29CsepmLjd9pd7mkjMo3Q69TSZ6YyMYPqSPygXsCUuA== X-Received: by 2002:a05:6870:a0a6:b0:40e:e9f4:90f5 with SMTP id 586e51a60fabf-40f0d997a2bmr9443254fac.58.1771461627086; Wed, 18 Feb 2026 16:40:27 -0800 (PST) Received: from sean-HP-EliteBook-830-G6.lan ([207.191.35.252]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-40eaee45d12sm23477659fac.1.2026.02.18.16.40.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Feb 2026 16:40:26 -0800 (PST) From: sean.wang@kernel.org To: nbd@nbd.name, lorenzo.bianconi@redhat.com Cc: linux-wireless@vger.kernel.org, linux-mediatek@lists.infradead.org, Sean Wang , Xiong Huang Subject: [PATCH 09/11] wifi: mt76: mt792x: add MT7902 WFDMA prefetch configuration Date: Wed, 18 Feb 2026 18:40:05 -0600 Message-ID: <20260219004007.19733-9-sean.wang@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260219004007.19733-1-sean.wang@kernel.org> References: <20260219004007.19733-1-sean.wang@kernel.org> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Sean Wang Configure the RX/TX ring prefetch setting for MT7902 PCIe device. This is a prerequisite patch before enabling MT7902 PCIe support. Co-developed-by: Xiong Huang Signed-off-by: Xiong Huang Signed-off-by: Sean Wang --- drivers/net/wireless/mediatek/mt76/mt792x_dma.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_dma.c b/drivers/net/wireless/mediatek/mt76/mt792x_dma.c index 34f07bd3097d..002aece857b2 100644 --- a/drivers/net/wireless/mediatek/mt76/mt792x_dma.c +++ b/drivers/net/wireless/mediatek/mt76/mt792x_dma.c @@ -103,6 +103,22 @@ static void mt792x_dma_prefetch(struct mt792x_dev *dev) mt76_wr(dev, MT_WFDMA0_TX_RING3_EXT_CTRL, PREFETCH(0x0400, 0x10)); mt76_wr(dev, MT_WFDMA0_TX_RING15_EXT_CTRL, PREFETCH(0x0500, 0x4)); mt76_wr(dev, MT_WFDMA0_TX_RING16_EXT_CTRL, PREFETCH(0x0540, 0x4)); + } else if (is_mt7902(&dev->mt76)) { + /* rx ring */ + mt76_wr(dev, MT_WFDMA0_RX_RING0_EXT_CTRL, PREFETCH(0x0000, 0x4)); + mt76_wr(dev, MT_WFDMA0_RX_RING1_EXT_CTRL, PREFETCH(0x0040, 0x4)); + mt76_wr(dev, MT_WFDMA0_RX_RING2_EXT_CTRL, PREFETCH(0x0080, 0x4)); + mt76_wr(dev, MT_WFDMA0_RX_RING3_EXT_CTRL, PREFETCH(0x00c0, 0x4)); + /* tx ring */ + mt76_wr(dev, MT_WFDMA0_TX_RING0_EXT_CTRL, PREFETCH(0x0100, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING1_EXT_CTRL, PREFETCH(0x0140, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING2_EXT_CTRL, PREFETCH(0x0180, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING3_EXT_CTRL, PREFETCH(0x01c0, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING4_EXT_CTRL, PREFETCH(0x0200, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING5_EXT_CTRL, PREFETCH(0x0240, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING6_EXT_CTRL, PREFETCH(0x0280, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING15_EXT_CTRL, PREFETCH(0x02c0, 0x4)); + mt76_wr(dev, MT_WFDMA0_TX_RING16_EXT_CTRL, PREFETCH(0x0300, 0x4)); } else { /* rx ring */ mt76_wr(dev, MT_WFDMA0_RX_RING0_EXT_CTRL, PREFETCH(0x0, 0x4)); -- 2.43.0