From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f182.google.com (mail-yw1-f182.google.com [209.85.128.182]) (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 161BD2E92B3 for ; Wed, 26 Aug 2026 02:40:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787712045; cv=none; b=c5+F2NyoPDLZGiaphbSa7Jb3jebnOd7qJhWKzm6PMAaD5Ka+e7LjFhreR8WdhA1ahciCoiWW+FJxckbl24a08U/N+g/hOuARkgejPAGbhiMkpmHY8Xm+kUwwu6xRzXSgw48tVmNOCaY2aC06Qn2oDqK5AHT+7zurf42MK+1w5/s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787712045; c=relaxed/simple; bh=dJeEv/rGh9nisWtmFwa508ECRE6nVq1Qn2/7Sn6Pn9o=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=lfsaXfuWjyHqJVan5NoCmXJJ69jOm2UPPjC7mFhIeysx+Tt2tP10K6hf0ZJj0t9tqH/f5FIGdwNE3S2bpYGjoyzVUVkOO6gWyNKDj8eqOqzXvsuBaML46j+9RKimLr2X52c+Y+dXcSZsmuiwi8O6F2+JIb5l1asbfqjyujJaQO8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=TZk86m4h; arc=none smtp.client-ip=209.85.128.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="TZk86m4h" Received: by mail-yw1-f182.google.com with SMTP id 00721157ae682-8585c16ab5aso315607b3.2 for ; Tue, 25 Aug 2026 19:40:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1787712042; x=1788316842; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=w469z7Q5/aaHi8aSt2+jyQ5LFi1CuQ46eioWVHjW3cs=; b=TZk86m4hkmHwVS39nDrdJZ9g5vTEyUBkTBVvRkD56eVSZXq0uld/2wjHl/RrpfV/VO DNeP9gYJJYJGnAdf1yraAEx/byepVGEUMwJRHInxl/06pOpeJU/snw8qVbsiOuuYK9W9 9S8yeqCM6j63Atyd29aOSdd7z2BAYBHxoHOKyTzl7LZ9raMB2Mq0erVPOsPlEQ8UpHzE VeV8ozrjc+dTvqHDjQY12CnRKSe+XtLe3TcJBajRDSB8umJLPzMdokRGYEklh5dTjCal CGZPZM5BTKFN6IfiRQa3AEVYmGbftBiJ3VJq47cvtMi68C6gSRisCLIDCsDhx59VEU8d I/ww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787712042; x=1788316842; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=w469z7Q5/aaHi8aSt2+jyQ5LFi1CuQ46eioWVHjW3cs=; b=rmWla8kG15BBFJm7qu7vLbJwvHGzoc/BTeAEUTwV60MTvfY/WlVp2yA+BmpxC0zxcr zlGgaZNyByWw8MBU2DASTksDwkCPbCHnihcWHa+8lMOq2W5jOK6zc6YnFE14OGoQ9Ob/ N4QyxBfm/mcEyxUVN5splMQ0nwvsGR8du5JorM5POmiIWsS33EDOVap+yCzs3Sc5G9Qg 8YE1yKyJDSg3Z195o2bkRnavMNBEY+qMMu3RQAd325ogA5g2owoi0EhIIknDaAB1MJhY bvsKdrkulYE3s7tAUXvQ+GPsocaXCH+Yqh1rj8IpOzDhQT6hkETZpMg/GnS621/azGmN 5DuQ== X-Forwarded-Encrypted: i=1; AHgh+Rr7DG6n06TcozYmanKYcocslpJvchPoPP54YAzqWYs/0HxgzCb1aYZhSl5Zvy5H780bmyKCxb6EeEFx@vger.kernel.org X-Gm-Message-State: AFuF++lzalBxZ0XfOLhLtzW4hn3XjY0RYH2XxHmrkdRB0BUG/SdagtHr s5LQeLSm5XTyfowRzwcHVYlDZrAvhwlxZ/e+03BtuodNhdeNIpEbpHnx X-Gm-Gg: AR+sD10c+RWmv/eAFhHxN2YZX7X7R+lNhJyE8UOF4TZg/Sd7sQXQTt6+7h1WV3/UYXV ZydlAVTy3H8Uv22ClAtV28aNN9+sWlIYyVxQJe2ncsq6nRHOYX00CNozrA+yqFkDiRY9nSTPX9a NPQjcRfFW5Vpdp713aGK5fniVJ2uVHE+nQrjFt8SZlW8fQoVyppMn7J15TRq0EESTtz2sdvPCwm oO05jtAj2v0AbJ3yryEQG7w+Z1mZuQQpk0cHM1g1LJe0qtqNA/M26NzHDtfIRQzPwlGP4uK4wJK mIQTPzk1eVjisbfafv2iD/Tdgn9jHZdIzKtYbCB+8bZ5gLBWX8dcNMdhxy1lcNdd/apYSYETn8W Ths3T4UjknDL4437pG2QmHSZa9PWo0eDTqbGSoZQdJ4qvmbPv13kVR5U3GzflonuxtT2i1cHNFL kdb7RjMir16w6xrZIaj3JxUkblcxwuDZ7RoIqqng+q8shyy2tkjsjgLKDk7vFSbg== X-Received: by 2002:a05:690c:4004:b0:81e:eb11:6e5f with SMTP id 00721157ae682-8574172735emr13449597b3.34.1787712041685; Tue, 25 Aug 2026 19:40:41 -0700 (PDT) Received: from [172.17.0.2] ([138.28.231.64]) by smtp.gmail.com with ESMTPSA id 00721157ae682-857053839fdsm9976087b3.10.2026.08.25.19.40.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 Aug 2026 19:40:41 -0700 (PDT) From: Yuanshen Cao Date: Wed, 26 Aug 2026 02:40:28 +0000 Subject: [PATCH v5 2/5] dmaengine: sun6i-dma: Support variable address widths using masks Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260826-sun60i-a733-dma-v5-2-abc5229b441e@gmail.com> References: <20260826-sun60i-a733-dma-v5-0-abc5229b441e@gmail.com> In-Reply-To: <20260826-sun60i-a733-dma-v5-0-abc5229b441e@gmail.com> To: Vinod Koul , Frank Li , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Ripard Cc: dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Yuanshen Cao X-Mailer: b4 0.16.0 The Allwinner A733 DMA controller supports higher addresses (up to 32G) compared to previous generations. The existing `sun6i_dma_set_addr` function uses hardcoded logic for setting the high-address bits in the LLI parameters. Add `src_high_addr_mask` and `dst_high_addr_mask` to `struct sun6i_dma_config` to handle different high-address bitfield mappings. Update `sun6i_dma_set_addr` to use these masks via `field_prep()`, allowing the driver to support variable address widths. Signed-off-by: Yuanshen Cao --- drivers/dma/sun6i-dma.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index f305fbfb3545..1ffd870d9594 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -7,6 +7,7 @@ * Maxime Ripard */ +#include #include #include #include @@ -103,8 +104,8 @@ * The LLI link physical address is also mangled, but we avoid dealing * with that by allocating LLIs from the DMA32 zone. */ -#define SRC_HIGH_ADDR(x) (((x) & 0x3U) << 16) -#define DST_HIGH_ADDR(x) (((x) & 0x3U) << 18) +#define SRC_HIGH_ADDR_MASK GENMASK(17, 16) +#define DST_HIGH_ADDR_MASK GENMASK(19, 18) /* * Various hardware related defines @@ -147,7 +148,8 @@ struct sun6i_dma_config { u32 dst_burst_lengths; u32 src_addr_widths; u32 dst_addr_widths; - bool has_high_addr; + u32 src_high_addr_mask; + u32 dst_high_addr_mask; bool has_mbus_clk; u32 irq_stride; u32 irq_en_offset; @@ -687,9 +689,10 @@ static inline void sun6i_dma_set_addr(struct sun6i_dma_dev *sdev, v_lli->src = lower_32_bits(src); v_lli->dst = lower_32_bits(dst); - if (sdev->cfg->has_high_addr) - v_lli->para |= SRC_HIGH_ADDR(upper_32_bits(src)) | - DST_HIGH_ADDR(upper_32_bits(dst)); + if (sdev->cfg->src_high_addr_mask) + v_lli->para |= + field_prep(sdev->cfg->src_high_addr_mask, upper_32_bits(src)) | + field_prep(sdev->cfg->dst_high_addr_mask, upper_32_bits(dst)); } static struct dma_async_tx_descriptor *sun6i_dma_prep_dma_memcpy( @@ -1283,7 +1286,8 @@ static struct sun6i_dma_config sun50i_a100_dma_cfg = { BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) | BIT(DMA_SLAVE_BUSWIDTH_8_BYTES), - .has_high_addr = true, + .src_high_addr_mask = SRC_HIGH_ADDR_MASK, + .dst_high_addr_mask = DST_HIGH_ADDR_MASK, .has_mbus_clk = true, SUN6I_DMA_IRQ_A31_COMMON_CFG }; -- 2.55.0