From patchwork Wed Feb 22 13:24:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiaxun Yang X-Patchwork-Id: 13149141 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EAA1BC61DA4 for ; Wed, 22 Feb 2023 13:24:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231799AbjBVNYw (ORCPT ); Wed, 22 Feb 2023 08:24:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232161AbjBVNYt (ORCPT ); Wed, 22 Feb 2023 08:24:49 -0500 Received: from out2-smtp.messagingengine.com (out2-smtp.messagingengine.com [66.111.4.26]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5DA5F3B3CB; Wed, 22 Feb 2023 05:24:43 -0800 (PST) Received: from compute2.internal (compute2.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id C6DEB5C016D; Wed, 22 Feb 2023 08:24:42 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute2.internal (MEProxy); Wed, 22 Feb 2023 08:24:42 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=flygoat.com; h= cc:cc:content-transfer-encoding:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm2; t=1677072282; x=1677158682; bh=6T 1o68vOusF0U/JsH2f0H8DjY8CJLE2Yaxz8jLQ29x0=; b=ixIYenL6yUTrdKDf/y yGIMj2+CSE4XTpBVAo7gCAd6shbojXwqI3NUDE39LbMxm++eR0YWt1gTl0i9l5IA Fm0+kXA6ietLck3SBwQybWWhAkxkbpSfi+3qr8HliYb7qKgDGwbXYFCwd6Pr8s/S Niw9CedJjVYG+kN05usHi5zNCLSnJFYiMQR4QuzIsjjLAk9L2hr04JsFqcXoZxng MyOY5dY51iukVAInSIqcLGFCdBX9CuCYIbVp3VZul40fOfAzd0cZ7wgrcwgX2WC8 dqipPh/sBhj+y8nfWd6Ffeh08TDdXnhxiiG673ourd/lszWo2HYu2WAmw4D8d3wa liFA== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm1; t=1677072282; x=1677158682; bh=6T1o68vOusF0U /JsH2f0H8DjY8CJLE2Yaxz8jLQ29x0=; b=pNBkQpTD4j3sLCiTNDX2ffGfvR6r7 54tMAQhX6XvhaNkeB3gAXYgggEq7wjC0amoqS+d6x2anSKX6x7ud+PgzAd5giu1E LuDCHCAXRpcPyodL87kAsINNGwLAJrM8XyZrbd6W7biR40o8MiuSsQ5kFK4Z6vfv nkXQcunmuBHQoPlTTz6CkTDKMjk9ub2/KrK71q7MKgdWOQFwWqfu93FtU82tJ8fI Bz1giQiKdcTir3WqXX3KhjpfBFCVDe0u7COTOp7KtB5yOznBTUnLMFz6gxw9W914 nhutfvI7FL9c+bw1wpYo8Z8tuoYdnqv7GCse1/qjXL3blxKadGlQS7yDg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvhedrudejledgheduucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefhvfevufffkffojghfggfgsedtke ertdertddtnecuhfhrohhmpeflihgrgihunhcujggrnhhguceojhhirgiguhhnrdihrghn ghesfhhlhihgohgrthdrtghomheqnecuggftrfgrthhtvghrnhepfeeludefheegvdeuvd dvgeekgfdvtdettdelieeihfegtedugeekhfdvhfejfedtnecuvehluhhsthgvrhfuihii vgeptdenucfrrghrrghmpehmrghilhhfrhhomhepjhhirgiguhhnrdihrghnghesfhhlhi hgohgrthdrtghomh X-ME-Proxy: Feedback-ID: ifd894703:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 22 Feb 2023 08:24:41 -0500 (EST) From: Jiaxun Yang To: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org, tsbogend@alpha.franken.de, hch@lst.de, Jiaxun Yang Subject: [PATCH v2 4/4] MIPS: c-r4k: Always install dma flush functions Date: Wed, 22 Feb 2023 13:24:25 +0000 Message-Id: <20230222132425.7442-5-jiaxun.yang@flygoat.com> X-Mailer: git-send-email 2.37.1 (Apple Git-137.1) In-Reply-To: <20230222132425.7442-1-jiaxun.yang@flygoat.com> References: <20230222132425.7442-1-jiaxun.yang@flygoat.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org As nowadays DMA coherence is managed per device, it is possible to have a system that is defaulted to coherent dma but still have noncoherent device that needs to use those flush functions. Just install them unconditionally. Signed-off-by: Jiaxun Yang --- arch/mips/mm/c-r4k.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index a549fa98c2f4..7d447050a20b 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -1867,15 +1867,9 @@ void r4k_cache_init(void) __local_flush_icache_user_range = local_r4k_flush_icache_user_range; #ifdef CONFIG_DMA_NONCOHERENT - if (dma_default_coherent) { - _dma_cache_wback_inv = (void *)cache_noop; - _dma_cache_wback = (void *)cache_noop; - _dma_cache_inv = (void *)cache_noop; - } else { - _dma_cache_wback_inv = r4k_dma_cache_wback_inv; - _dma_cache_wback = r4k_dma_cache_wback_inv; - _dma_cache_inv = r4k_dma_cache_inv; - } + _dma_cache_wback_inv = r4k_dma_cache_wback_inv; + _dma_cache_wback = r4k_dma_cache_wback_inv; + _dma_cache_inv = r4k_dma_cache_inv; #endif /* CONFIG_DMA_NONCOHERENT */ build_clear_page();