From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (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 01E5B2441B8 for ; Fri, 3 Jul 2026 11:25:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.130 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783077918; cv=none; b=bWXW5PoE5s2A0fg2SuCVNWA1Y7BAZb7hNTSgvZKbzn9zUbSIeIQRZ9OPS8jRzKeSOJ80W7GLKFah+PXdbZZxkdcBGEb+WsXqbeMmU+sjF7/NqEwRuauu2/0Pa8D70aDspo8Z+Fnh48hJF9YKSgyeVY9HAzsz+eZK2o+ZU9JNPoQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783077918; c=relaxed/simple; bh=O5CmdDhI5L1DLtnjcNir628CEidp6/i5pTMHI4d95Vo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=AyIaTNUoqiO7Pnl00VLPcx+CKO1U0xLs6kUTFHgmfw+iIZaM6Qhm/oxZ3EvaINp7y8mDxIEosslSuq21CDfSyz9Ao+di8KOD5SsRB3iTl7OArzEVKmYLzWKT2I3MCu0FHBoG08KTdeeQs63eL/YfeV7kgOEUoHTHLJ1A5c+tePY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com; spf=pass smtp.mailfrom=suse.com; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b=bOsC7138; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b=bOsC7138; arc=none smtp.client-ip=195.135.223.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=suse.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="bOsC7138"; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="bOsC7138" Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 557B17480E; Fri, 3 Jul 2026 11:25:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1783077911; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UxI8b47TM67fFJAZJcHvy9LdA570CjXCD2zaUtc+CbU=; b=bOsC71381Pw6QXhVXZ4F3CKTKZtBhp5c/tGSUPix0oK6hRHGjf6reB3Hp+Wgox/jh1CiK3 ubJMoAc8Bz48j32Mzur1TllBhD6fQF4uu69BfmW9kN/egMJp/jBa4uJgRmnRzPaClc8xfZ 3sBj2heCnBjQBjcTs19ASeTJcQm1TOU= Authentication-Results: smtp-out1.suse.de; dkim=pass header.d=suse.com header.s=susede1 header.b=bOsC7138 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1783077911; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UxI8b47TM67fFJAZJcHvy9LdA570CjXCD2zaUtc+CbU=; b=bOsC71381Pw6QXhVXZ4F3CKTKZtBhp5c/tGSUPix0oK6hRHGjf6reB3Hp+Wgox/jh1CiK3 ubJMoAc8Bz48j32Mzur1TllBhD6fQF4uu69BfmW9kN/egMJp/jBa4uJgRmnRzPaClc8xfZ 3sBj2heCnBjQBjcTs19ASeTJcQm1TOU= Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 2A202779AA; Fri, 3 Jul 2026 11:25:11 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id PY/tCBecR2qcZQAAD6G6ig (envelope-from ); Fri, 03 Jul 2026 11:25:11 +0000 From: Juergen Gross To: linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Cc: Juergen Gross , Damien Le Moal , Niklas Cassel Subject: [PATCH v2 20/32] drivers/ata: Stop using 32-bit MSR interfaces Date: Fri, 3 Jul 2026 13:25:08 +0200 Message-ID: <20260703112508.1763119-1-jgross@suse.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260629060526.3638272-21-jgross@suse.com> References: <20260629060526.3638272-21-jgross@suse.com> Precedence: bulk X-Mailing-List: linux-ide@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Action: no action X-Rspamd-Queue-Id: 557B17480E X-Spam-Flag: NO X-Spam-Score: -3.01 X-Spam-Level: X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; R_DKIM_ALLOW(-0.20)[suse.com:s=susede1]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; FUZZY_RATELIMITED(0.00)[rspamd.com]; MIME_TRACE(0.00)[0:+]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; TO_DN_SOME(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.com:dkim,suse.com:email,suse.com:mid,imap1.dmz-prg2.suse.org:rdns,imap1.dmz-prg2.suse.org:helo]; RCVD_TLS_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; DNSWL_BLOCKED(0.00)[2a07:de40:b281:106:10:150:64:167:received]; DKIM_SIGNED(0.00)[suse.com:s=susede1]; RCPT_COUNT_FIVE(0.00)[5]; DKIM_TRACE(0.00)[suse.com:+] X-Rspamd-Server: rspamd1.dmz-prg2.suse.org The 32-bit MSR interfaces rdmsr() and wrmsr() are planned to be removed. Use the related 64-bit variants instead. In drivers/ata/pata_cs5536.c don't redefine rdmsr() and wrmsr() as empty macros for avoiding misuse, but guard the affected code via a simple #ifdef. Signed-off-by: Juergen Gross --- V2: - avoid sign extension when using wrmsrq() (Sashiko bot) --- drivers/ata/pata_cs5535.c | 20 ++++++++++---------- drivers/ata/pata_cs5536.c | 17 ++++++++--------- 2 files changed, 18 insertions(+), 19 deletions(-) diff --git a/drivers/ata/pata_cs5535.c b/drivers/ata/pata_cs5535.c index d793fc441b46..e16c7f4c7c27 100644 --- a/drivers/ata/pata_cs5535.c +++ b/drivers/ata/pata_cs5535.c @@ -90,7 +90,7 @@ static void cs5535_set_piomode(struct ata_port *ap, struct ata_device *adev) static const u16 pio_cmd_timings[5] = { 0xF7F4, 0x53F3, 0x13F1, 0x5131, 0x1131 }; - u32 reg, __maybe_unused dummy; + u32 reg; struct ata_device *pair = ata_dev_pair(adev); int mode = adev->pio_mode - XFER_PIO_0; @@ -102,16 +102,16 @@ static void cs5535_set_piomode(struct ata_port *ap, struct ata_device *adev) cmdmode = min(mode, pairmode); /* Write the other drive timing register if it changed */ if (cmdmode < pairmode) - wrmsr(ATAC_CH0D0_PIO + 2 * pair->devno, - pio_cmd_timings[cmdmode] << 16 | pio_timings[pairmode], 0); + wrmsrq(ATAC_CH0D0_PIO + 2 * pair->devno, + (u32)pio_cmd_timings[cmdmode] << 16 | pio_timings[pairmode]); } /* Write the drive timing register */ - wrmsr(ATAC_CH0D0_PIO + 2 * adev->devno, - pio_cmd_timings[cmdmode] << 16 | pio_timings[mode], 0); + wrmsrq(ATAC_CH0D0_PIO + 2 * adev->devno, + (u32)pio_cmd_timings[cmdmode] << 16 | pio_timings[mode]); /* Set the PIO "format 1" bit in the DMA timing register */ - rdmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg, dummy); - wrmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg | 0x80000000UL, 0); + rdmsrq(ATAC_CH0D0_DMA + 2 * adev->devno, reg); + wrmsrq(ATAC_CH0D0_DMA + 2 * adev->devno, reg | 0x80000000UL); } /** @@ -129,16 +129,16 @@ static void cs5535_set_dmamode(struct ata_port *ap, struct ata_device *adev) static const u32 mwdma_timings[3] = { 0x7F0FFFF3, 0x7F035352, 0x7F024241 }; - u32 reg, __maybe_unused dummy; + u32 reg; int mode = adev->dma_mode; - rdmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg, dummy); + rdmsrq(ATAC_CH0D0_DMA + 2 * adev->devno, reg); reg &= 0x80000000UL; if (mode >= XFER_UDMA_0) reg |= udma_timings[mode - XFER_UDMA_0]; else reg |= mwdma_timings[mode - XFER_MW_DMA_0]; - wrmsr(ATAC_CH0D0_DMA + 2 * adev->devno, reg, 0); + wrmsrq(ATAC_CH0D0_DMA + 2 * adev->devno, reg); } static const struct scsi_host_template cs5535_sht = { diff --git a/drivers/ata/pata_cs5536.c b/drivers/ata/pata_cs5536.c index 73e81e160c91..61d232a82b5e 100644 --- a/drivers/ata/pata_cs5536.c +++ b/drivers/ata/pata_cs5536.c @@ -32,11 +32,8 @@ static int use_msr; module_param_named(msr, use_msr, int, 0644); MODULE_PARM_DESC(msr, "Force using MSR to configure IDE function (Default: 0)"); +#define MAYBE_USE_MSR #else -#undef rdmsr /* avoid accidental MSR usage on, e.g. x86-64 */ -#undef wrmsr -#define rdmsr(x, y, z) do { } while (0) -#define wrmsr(x, y, z) do { } while (0) #define use_msr 0 #endif @@ -85,22 +82,24 @@ static const struct dmi_system_id udma_quirk_dmi_table[] = { static int cs5536_read(struct pci_dev *pdev, int reg, u32 *val) { +#ifdef MAYBE_USE_MSR if (unlikely(use_msr)) { - u32 dummy __maybe_unused; - - rdmsr(MSR_IDE_CFG + reg, *val, dummy); + rdmsrq(MSR_IDE_CFG + reg, *val); return 0; } +#endif return pci_read_config_dword(pdev, PCI_IDE_CFG + reg * 4, val); } -static int cs5536_write(struct pci_dev *pdev, int reg, int val) +static int cs5536_write(struct pci_dev *pdev, int reg, u32 val) { +#ifdef MAYBE_USE_MSR if (unlikely(use_msr)) { - wrmsr(MSR_IDE_CFG + reg, val, 0); + wrmsrq(MSR_IDE_CFG + reg, val); return 0; } +#endif return pci_write_config_dword(pdev, PCI_IDE_CFG + reg * 4, val); } -- 2.54.0