From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from gloria.sntech.de (gloria.sntech.de [185.11.138.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 28EBD2BE7DF; Wed, 27 Aug 2025 07:57:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.11.138.130 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756281461; cv=none; b=fIHpFjMfbTiYVrNP9CfvzTY3k9WUITj8yq4XJt9xpOImkzEmLaBTgRRUIZRNvQh7NhNAFs2R1wy0tuy5M0JnueWVIdRNgdQnfaOwD7zWlhCy02CKrEVy80qDqDLhLwegO0enmUq1jCC4qDRGFhtwfFuzdoPBdL4GI9Zo7/TJrFY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756281461; c=relaxed/simple; bh=0MK1dUMIBWuj72rwewkqEVH0cn/LnA/1R+TUGxOlw7A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=mlOqgHAwDwrLDc0v0peUBcMCR5JyiGWyJYva7Q76UYTQ02AwsyvXa7yd5qdVuHurMyhVyQ9t5s4xZX/mv3onJCCJKhzF/F/dyE+KbhbRUpnHcLWu/DWzumjaseYPN9uhmuO1LGYQVQCR4trisOgSljiKr1pv6kes61mpFijNkFU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sntech.de; spf=pass smtp.mailfrom=sntech.de; dkim=pass (2048-bit key) header.d=sntech.de header.i=@sntech.de header.b=ETZTkoEo; arc=none smtp.client-ip=185.11.138.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sntech.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sntech.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=sntech.de header.i=@sntech.de header.b="ETZTkoEo" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Type:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Reply-To; bh=0MK1dUMIBWuj72rwewkqEVH0cn/LnA/1R+TUGxOlw7A=; b=ETZTkoEoOwtznU7PtnZeQFX4Fe vM6Gg/U5rsSJj/WUqqtUEJV3BceYz2JVc61zNRNRjL4DFqp104N1wUclJpSswXx5sqCln7OWyunG6 1BXLLRpOWOQKi7IxecmWks9WndogbL1isYzy85Po6NTAI5iUKT6cVGycUUx1+G9Sdk6QBfX5Nab2O AoHyUEffPqw/BIjMBTDsou/G4FI5gXNkiAM7XHNVs95bP9wM5OxBgaN/F8O7uh73Jt61EZ5SREvoE VRfAa8DcHOrlfJ+EZjWxzMMZ6lcGDOSdP3RHulTQGePkNCSjMsKPIAnaT2QKSPEuFVcPwPFvGnA9V jTWs2Wcg==; Received: from [213.244.170.152] (helo=phil.localnet) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1urB1d-0002Lk-PM; Wed, 27 Aug 2025 09:56:57 +0200 From: Heiko Stuebner To: Yury Norov , Rasmus Villemoes , Jaehoon Chung , Ulf Hansson , Shreeya Patel , Mauro Carvalho Chehab , Sandy Huang , Andy Yan , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Vinod Koul , Kishon Vijay Abraham I , Nicolas Frattaroli , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , Shawn Lin , Lorenzo Pieralisi , Krzysztof =?UTF-8?B?V2lsY3p5xYRza2k=?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Chanwoo Choi , MyungJoo Ham , Kyungmin Park , Qin Jian , Michael Turquette , Stephen Boyd , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Nicolas Frattaroli Cc: kernel@collabora.com, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-phy@lists.infradead.org, linux-sound@vger.kernel.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, llvm@lists.linux.dev, Nicolas Frattaroli Subject: Re: [PATCH v3 16/20] PCI: rockchip: Switch to FIELD_PREP_WM16* macros Date: Wed, 27 Aug 2025 09:56:55 +0200 Message-ID: <7681880.cEBGB3zze1@phil> In-Reply-To: <20250825-byeword-update-v3-16-947b841cdb29@collabora.com> References: <20250825-byeword-update-v3-0-947b841cdb29@collabora.com> <20250825-byeword-update-v3-16-947b841cdb29@collabora.com> Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Am Montag, 25. August 2025, 10:28:36 Mitteleurop=C3=A4ische Sommerzeit schr= ieb Nicolas Frattaroli: > The era of hand-rolled HIWORD_UPDATE macros is over, at least for those > drivers that use constant masks. >=20 > The Rockchip PCI driver, like many other Rockchip drivers, has its very > own definition of HIWORD_UPDATE. >=20 > Remove it, and replace its usage with either FIELD_PREP_WM16, or two new > header local macros for setting/clearing a bit with the high mask, which > use FIELD_PREP_WM16_CONST internally. In the process, ENCODE_LANES > needed to be adjusted, as FIELD_PREP_WM16* shifts the value for us. >=20 > That this is equivalent was verified by first making all FIELD_PREP_WM16 > instances FIELD_PREP_WM16_CONST, then doing a static_assert() comparing > it to the old macro (and for those with parameters, static_asserting for > the full range of possible values with the old encode macro). >=20 > What we get out of this is compile time error checking to make sure the > value actually fits in the mask, and that the mask fits in the register, > and also generally less icky code that writes shifted values when it > actually just meant to set and clear a handful of bits. >=20 > Acked-by: Bjorn Helgaas > Signed-off-by: Nicolas Frattaroli Reviewed-by: Heiko Stuebner From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 28A47CA0FF6 for ; Wed, 27 Aug 2025 07:57:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=E4ysOUdxLegf5HJNfMuclfppzjE960VxUimQphUSKkw=; b=AS7Jq4miHPOjXK nqbwDmNIOFP3NYEjDxJzJYr4bhX7rQnWdP0tSHwkBdO6L+6b4apgXa9HDpLx423QeTgjtA0Zq2DFD ZiKXOAytMrhd6Q/qGocf7w57wwdsXPyOaY9L4I9izyRCBDmw6CmGp7Euv+SmSQ8E6ylIqeL9Hmokd TxZRRz3lMjbwjX2xpI9N3pdrsnZcotQqlOIbiX7QnzFBxovLs1zsnXG70IzS23NhZJgBrfWVuAZs3 2ax035R/gEaDPHHsZ+MSqIVcN057r9RCjwvv0XdImzy6c9815yHXrEoi2FdMIIcqRgOV2GTZLwgBf Xc97AvOQPjtGKudACD7w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1urB2J-0000000EWzN-2uNg; Wed, 27 Aug 2025 07:57:39 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1urB2G-0000000EWy3-3NEv; Wed, 27 Aug 2025 07:57:37 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Type:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Reply-To; bh=0MK1dUMIBWuj72rwewkqEVH0cn/LnA/1R+TUGxOlw7A=; b=ETZTkoEoOwtznU7PtnZeQFX4Fe vM6Gg/U5rsSJj/WUqqtUEJV3BceYz2JVc61zNRNRjL4DFqp104N1wUclJpSswXx5sqCln7OWyunG6 1BXLLRpOWOQKi7IxecmWks9WndogbL1isYzy85Po6NTAI5iUKT6cVGycUUx1+G9Sdk6QBfX5Nab2O AoHyUEffPqw/BIjMBTDsou/G4FI5gXNkiAM7XHNVs95bP9wM5OxBgaN/F8O7uh73Jt61EZ5SREvoE VRfAa8DcHOrlfJ+EZjWxzMMZ6lcGDOSdP3RHulTQGePkNCSjMsKPIAnaT2QKSPEuFVcPwPFvGnA9V jTWs2Wcg==; Received: from [213.244.170.152] (helo=phil.localnet) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1urB1d-0002Lk-PM; Wed, 27 Aug 2025 09:56:57 +0200 From: Heiko Stuebner To: Yury Norov , Rasmus Villemoes , Jaehoon Chung , Ulf Hansson , Shreeya Patel , Mauro Carvalho Chehab , Sandy Huang , Andy Yan , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Vinod Koul , Kishon Vijay Abraham I , Nicolas Frattaroli , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , Shawn Lin , Lorenzo Pieralisi , Krzysztof =?UTF-8?B?V2lsY3p5xYRza2k=?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Chanwoo Choi , MyungJoo Ham , Kyungmin Park , Qin Jian , Michael Turquette , Stephen Boyd , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Nicolas Frattaroli Cc: kernel@collabora.com, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-phy@lists.infradead.org, linux-sound@vger.kernel.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, linux-clk@vger.kernel.org, llvm@lists.linux.dev, Nicolas Frattaroli Subject: Re: [PATCH v3 16/20] PCI: rockchip: Switch to FIELD_PREP_WM16* macros Date: Wed, 27 Aug 2025 09:56:55 +0200 Message-ID: <7681880.cEBGB3zze1@phil> In-Reply-To: <20250825-byeword-update-v3-16-947b841cdb29@collabora.com> References: <20250825-byeword-update-v3-0-947b841cdb29@collabora.com> <20250825-byeword-update-v3-16-947b841cdb29@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250827_005736_834430_8510FA68 X-CRM114-Status: GOOD ( 15.13 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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Wed, 27 Aug 2025 09:56:57 +0200 From: Heiko Stuebner To: Yury Norov , Rasmus Villemoes , Jaehoon Chung , Ulf Hansson , Shreeya Patel , Mauro Carvalho Chehab , Sandy Huang , Andy Yan , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Vinod Koul , Kishon Vijay Abraham I , Nicolas Frattaroli , Liam Girdwood , Mark Brown , Jaroslav Kysela , Takashi Iwai , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , Shawn Lin , Lorenzo Pieralisi , Krzysztof =?UTF-8?B?V2lsY3p5xYRza2k=?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Chanwoo Choi , MyungJoo Ham , Kyungmin Park , Qin Jian , Michael Turquette , Stephen Boyd , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Nicolas Frattaroli Subject: Re: [PATCH v3 16/20] PCI: rockchip: Switch to FIELD_PREP_WM16* macros Date: Wed, 27 Aug 2025 09:56:55 +0200 Message-ID: <7681880.cEBGB3zze1@phil> In-Reply-To: <20250825-byeword-update-v3-16-947b841cdb29@collabora.com> References: <20250825-byeword-update-v3-0-947b841cdb29@collabora.com> <20250825-byeword-update-v3-16-947b841cdb29@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250827_005736_834430_8510FA68 X-CRM114-Status: GOOD ( 15.13 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-pm@vger.kernel.org, netdev@vger.kernel.org, llvm@lists.linux.dev, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-clk@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-sound@vger.kernel.org, linux-pci@vger.kernel.org, linux-phy@lists.infradead.org, kernel@collabora.com, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org QW0gTW9udGFnLCAyNS4gQXVndXN0IDIwMjUsIDEwOjI4OjM2IE1pdHRlbGV1cm9ww6Rpc2NoZSBT b21tZXJ6ZWl0IHNjaHJpZWIgTmljb2xhcyBGcmF0dGFyb2xpOgo+IFRoZSBlcmEgb2YgaGFuZC1y b2xsZWQgSElXT1JEX1VQREFURSBtYWNyb3MgaXMgb3ZlciwgYXQgbGVhc3QgZm9yIHRob3NlCj4g ZHJpdmVycyB0aGF0IHVzZSBjb25zdGFudCBtYXNrcy4KPiAKPiBUaGUgUm9ja2NoaXAgUENJIGRy aXZlciwgbGlrZSBtYW55IG90aGVyIFJvY2tjaGlwIGRyaXZlcnMsIGhhcyBpdHMgdmVyeQo+IG93 biBkZWZpbml0aW9uIG9mIEhJV09SRF9VUERBVEUuCj4gCj4gUmVtb3ZlIGl0LCBhbmQgcmVwbGFj ZSBpdHMgdXNhZ2Ugd2l0aCBlaXRoZXIgRklFTERfUFJFUF9XTTE2LCBvciB0d28gbmV3Cj4gaGVh ZGVyIGxvY2FsIG1hY3JvcyBmb3Igc2V0dGluZy9jbGVhcmluZyBhIGJpdCB3aXRoIHRoZSBoaWdo IG1hc2ssIHdoaWNoCj4gdXNlIEZJRUxEX1BSRVBfV00xNl9DT05TVCBpbnRlcm5hbGx5LiBJbiB0 aGUgcHJvY2VzcywgRU5DT0RFX0xBTkVTCj4gbmVlZGVkIHRvIGJlIGFkanVzdGVkLCBhcyBGSUVM RF9QUkVQX1dNMTYqIHNoaWZ0cyB0aGUgdmFsdWUgZm9yIHVzLgo+IAo+IFRoYXQgdGhpcyBpcyBl cXVpdmFsZW50IHdhcyB2ZXJpZmllZCBieSBmaXJzdCBtYWtpbmcgYWxsIEZJRUxEX1BSRVBfV00x Ngo+IGluc3RhbmNlcyBGSUVMRF9QUkVQX1dNMTZfQ09OU1QsIHRoZW4gZG9pbmcgYSBzdGF0aWNf YXNzZXJ0KCkgY29tcGFyaW5nCj4gaXQgdG8gdGhlIG9sZCBtYWNybyAoYW5kIGZvciB0aG9zZSB3 aXRoIHBhcmFtZXRlcnMsIHN0YXRpY19hc3NlcnRpbmcgZm9yCj4gdGhlIGZ1bGwgcmFuZ2Ugb2Yg cG9zc2libGUgdmFsdWVzIHdpdGggdGhlIG9sZCBlbmNvZGUgbWFjcm8pLgo+IAo+IFdoYXQgd2Ug Z2V0IG91dCBvZiB0aGlzIGlzIGNvbXBpbGUgdGltZSBlcnJvciBjaGVja2luZyB0byBtYWtlIHN1 cmUgdGhlCj4gdmFsdWUgYWN0dWFsbHkgZml0cyBpbiB0aGUgbWFzaywgYW5kIHRoYXQgdGhlIG1h c2sgZml0cyBpbiB0aGUgcmVnaXN0ZXIsCj4gYW5kIGFsc28gZ2VuZXJhbGx5IGxlc3MgaWNreSBj b2RlIHRoYXQgd3JpdGVzIHNoaWZ0ZWQgdmFsdWVzIHdoZW4gaXQKPiBhY3R1YWxseSBqdXN0IG1l YW50IHRvIHNldCBhbmQgY2xlYXIgYSBoYW5kZnVsIG9mIGJpdHMuCj4gCj4gQWNrZWQtYnk6IEJq b3JuIEhlbGdhYXMgPGJoZWxnYWFzQGdvb2dsZS5jb20+Cj4gU2lnbmVkLW9mZi1ieTogTmljb2xh cyBGcmF0dGFyb2xpIDxuaWNvbGFzLmZyYXR0YXJvbGlAY29sbGFib3JhLmNvbT4KClJldmlld2Vk LWJ5OiBIZWlrbyBTdHVlYm5lciA8aGVpa29Ac250ZWNoLmRlPgoKCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eC1yb2NrY2hpcCBtYWlsaW5nIGxp c3QKTGludXgtcm9ja2NoaXBAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFk ZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LXJvY2tjaGlwCg==