From patchwork Wed Oct 16 21:11:18 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 836569 Received: from 009.lax.mailroute.net (009.lax.mailroute.net [199.89.1.12]) (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 3026E1D2F42 for ; Wed, 16 Oct 2024 21:13:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=199.89.1.12 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729113190; cv=none; b=cpFICl0QA2BcY5C73+6iDY9czJeGXtWb33PCJeTEzKDtauzo0grnFTbwmeNusVuJBmhtZf3Ays+7JnrY8bjxG9Re0AJveUacdpzNvs9gL5vIppXBkZ0DDVfuJ9UCGy1J2Jt517j2mjMXtF5aZcGsh2Ogbs9JJ2Eff7LolnZ126M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729113190; c=relaxed/simple; bh=UCL7HwpmMrkOWCYTpoYSw3v+dXq2S/1324SQeV4xfUg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Pn8qMm4TWdSep5uXcyFRCaWRp4CpVMFRLYW4YKoCzu628+NUQl9AJqWhwmtOa+vyPEYNG1fou7wx82YbfohjZPZ4W18hP67sF7DZ8F7o4xJ8Dxw2fSwld6Y2UWjF6agdT1uHbctTD5VOVSSA4laE8cmGm3PYy/+YYrq2gF++9xU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org; spf=pass smtp.mailfrom=acm.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b=CtlA4nsK; arc=none smtp.client-ip=199.89.1.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=acm.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b="CtlA4nsK" Received: from localhost (localhost [127.0.0.1]) by 009.lax.mailroute.net (Postfix) with ESMTP id 4XTNwh6n9hzlgMVr; Wed, 16 Oct 2024 21:13:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=acm.org; h= content-transfer-encoding:mime-version:references:in-reply-to :x-mailer:message-id:date:date:subject:subject:from:from :received:received; s=mr01; t=1729113182; x=1731705183; bh=nBOJM e0B8AN1VXAmXtfYXEEKaQTpcbxJMNXSKJd0Kx8=; b=CtlA4nsKHJ3K/M0k2TCAe N827HRSaeqQgEFs299Y9fHHJhvLQDaG7GTLmt1RbK1h+RxGmJj/OaNr5vAIl8Wv/ TTvASgenC0t+70rzcyyrg4q5GyHIWWi5hv+WR/v6hnCYywj66guCRodobrv9GJk9 1Tjln+AhLJ02squZC1fJruV3UDqCyPSdwflJIGCBwHs0C9s5U/hp/rmKGx2xyXam vgaSlmxrzKQITeHHEfM7azIQ5ktTIpD+SBUDTVKm+lJZK7mEWMwlD2H8aJZbilcn HAVVlPWUSBT67RolXC+0CEutNRLwcPlIbYBXkawBGZvxr0gEDJjUphjnj47ewA6w A== X-Virus-Scanned: by MailRoute Received: from 009.lax.mailroute.net ([127.0.0.1]) by localhost (009.lax [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id z6LGICovOHu4; Wed, 16 Oct 2024 21:13:02 +0000 (UTC) Received: from bvanassche.mtv.corp.google.com (unknown [104.135.204.82]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bvanassche@acm.org) by 009.lax.mailroute.net (Postfix) with ESMTPSA id 4XTNwW0htWzlgTWP; Wed, 16 Oct 2024 21:12:58 +0000 (UTC) From: Bart Van Assche To: "Martin K . Petersen" Cc: linux-scsi@vger.kernel.org, Bart Van Assche , "James E.J. Bottomley" , Yoshihiro Shimoda , Manivannan Sadhasivam , Peter Wang , Avri Altman , Andrew Halaney , Bean Huo , Maramaina Naresh , Eric Biggers , Minwoo Im Subject: [PATCH 7/7] scsi: ufs: core: Make DMA mask configuration more flexible Date: Wed, 16 Oct 2024 14:11:18 -0700 Message-ID: <20241016211154.2425403-8-bvanassche@acm.org> X-Mailer: git-send-email 2.47.0.rc1.288.g06298d1525-goog In-Reply-To: <20241016211154.2425403-1-bvanassche@acm.org> References: <20241016211154.2425403-1-bvanassche@acm.org> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Replace UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS with ufs_hba_variant_ops::set_dma_mask. Update the Renesas driver accordingly. This patch prepares for adding 36-bit DMA support. No functionality has been changed. Signed-off-by: Bart Van Assche --- drivers/ufs/core/ufshcd.c | 4 ++-- drivers/ufs/host/ufs-renesas.c | 9 +++++++-- include/ufs/ufshcd.h | 9 +++------ 3 files changed, 12 insertions(+), 10 deletions(-) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 75e00e5b3f79..c1d4a9c8480f 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -2389,8 +2389,6 @@ static inline int ufshcd_hba_capabilities(struct ufs_hba *hba) int err; hba->capabilities = ufshcd_readl(hba, REG_CONTROLLER_CAPABILITIES); - if (hba->quirks & UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS) - hba->capabilities &= ~MASK_64_ADDRESSING_SUPPORT; /* nutrs and nutmrs are 0 based values */ hba->nutrs = (hba->capabilities & MASK_TRANSFER_REQUESTS_SLOTS_SDB) + 1; @@ -10280,6 +10278,8 @@ EXPORT_SYMBOL_GPL(ufshcd_dealloc_host); */ static int ufshcd_set_dma_mask(struct ufs_hba *hba) { + if (hba->vops && hba->vops->set_dma_mask) + return hba->vops->set_dma_mask(hba); if (hba->capabilities & MASK_64_ADDRESSING_SUPPORT) { if (!dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(64))) return 0; diff --git a/drivers/ufs/host/ufs-renesas.c b/drivers/ufs/host/ufs-renesas.c index 8711e5cbc968..8b0aebf127b6 100644 --- a/drivers/ufs/host/ufs-renesas.c +++ b/drivers/ufs/host/ufs-renesas.c @@ -7,6 +7,7 @@ #include #include +#include #include #include #include @@ -364,14 +365,18 @@ static int ufs_renesas_init(struct ufs_hba *hba) return -ENOMEM; ufshcd_set_variant(hba, priv); - hba->quirks |= UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS | UFSHCD_QUIRK_HIBERN_FASTAUTO; - return 0; } +static int ufs_renesas_set_dma_mask(struct ufs_hba *hba) +{ + return dma_set_mask_and_coherent(hba->dev, DMA_BIT_MASK(32)); +} + static const struct ufs_hba_variant_ops ufs_renesas_vops = { .name = "renesas", .init = ufs_renesas_init, + .set_dma_mask = ufs_renesas_set_dma_mask, .setup_clocks = ufs_renesas_setup_clocks, .hce_enable_notify = ufs_renesas_hce_enable_notify, .dbg_register_dump = ufs_renesas_dbg_register_dump, diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index 36bd91ff3593..9ea2a7411bb5 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -299,6 +299,8 @@ struct ufs_pwr_mode_info { * @max_num_rtt: maximum RTT supported by the host * @init: called when the driver is initialized * @exit: called to cleanup everything done in init + * @set_dma_mask: For setting another DMA mask than indicated by the 64AS + * capability bit. * @get_ufs_hci_version: called to get UFS HCI version * @clk_scale_notify: notifies that clks are scaled up/down * @setup_clocks: called before touching any of the controller registers @@ -341,6 +343,7 @@ struct ufs_hba_variant_ops { int (*init)(struct ufs_hba *); void (*exit)(struct ufs_hba *); u32 (*get_ufs_hci_version)(struct ufs_hba *); + int (*set_dma_mask)(struct ufs_hba *); int (*clk_scale_notify)(struct ufs_hba *, bool, enum ufs_notify_change_status); int (*setup_clocks)(struct ufs_hba *, bool, @@ -623,12 +626,6 @@ enum ufshcd_quirks { */ UFSHCD_QUIRK_SKIP_PH_CONFIGURATION = 1 << 16, - /* - * This quirk needs to be enabled if the host controller has - * 64-bit addressing supported capability but it doesn't work. - */ - UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS = 1 << 17, - /* * This quirk needs to be enabled if the host controller has * auto-hibernate capability but it's FASTAUTO only.