From patchwork Tue May 16 11:00:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Niklas Schnelle X-Patchwork-Id: 13243016 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 6B22AC77B75 for ; Tue, 16 May 2023 11:44:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232685AbjEPLoJ (ORCPT ); Tue, 16 May 2023 07:44:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39542 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231773AbjEPLoI (ORCPT ); Tue, 16 May 2023 07:44:08 -0400 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3BA8065AB; Tue, 16 May 2023 04:43:54 -0700 (PDT) Received: from pps.filterd (m0353725.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34GB44bj006457; Tue, 16 May 2023 11:09:04 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=qyggqae/uszDRhLM1GDTRIEzqfLcSgCTe3o7D4r05OU=; b=dFUSTHNcZFB6vde2WLDtUKgikf5tFWpRqZLAqBEw3nCvnn9izOXuXro3PIKfnAGWmyZW Z8Anq0/DJSDJCiFYjPbrFXyQyGHegeGV786qtv3wYfzHVUgSV2XER7nKGGLL/XJdWaTC dGW3MQHuQ8kdaAkT0LHIDDZ5bEwRe8Bx3WuZHmQiaviQR+mkhrzTtlWsr6G6rQN1hxYJ R3ptSlxx7MtTVyMb/5qBYczdo6GTeb7mpUVViuti6fUnR3/16coLIzaTZUcdcEJAFerj W5eO0WxMPzEWqF61XseTVU9Kxrg/ghxqbhxn/TQQOJnSJyOVHeOy12px4GqCTc8i8bLq Wg== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3qm8mrrcxs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 May 2023 11:09:00 +0000 Received: from m0353725.ppops.net (m0353725.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 34GB4Skl008048; Tue, 16 May 2023 11:07:09 GMT Received: from ppma04ams.nl.ibm.com (63.31.33a9.ip4.static.sl-reverse.com [169.51.49.99]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3qm8mrr812-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 May 2023 11:07:09 +0000 Received: from pps.filterd (ppma04ams.nl.ibm.com [127.0.0.1]) by ppma04ams.nl.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 34F3Rn4l000875; Tue, 16 May 2023 11:01:16 GMT Received: from smtprelay01.fra02v.mail.ibm.com ([9.218.2.227]) by ppma04ams.nl.ibm.com (PPS) with ESMTPS id 3qj264sk9b-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 May 2023 11:01:15 +0000 Received: from smtpav04.fra02v.mail.ibm.com (smtpav04.fra02v.mail.ibm.com [10.20.54.103]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 34GB1Ch62491090 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 16 May 2023 11:01:13 GMT Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 65AAE20043; Tue, 16 May 2023 11:01:12 +0000 (GMT) Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 09E862004D; Tue, 16 May 2023 11:01:12 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 16 May 2023 11:01:11 +0000 (GMT) From: Niklas Schnelle To: Arnd Bergmann , Greg Kroah-Hartman , Mathias Nyman Cc: Bjorn Helgaas , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Mauro Carvalho Chehab , Alan Stern , "Rafael J. Wysocki" , Geert Uytterhoeven , Paul Walmsley , Palmer Dabbelt , Albert Ou , linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linux-pci@vger.kernel.org, Arnd Bergmann , linux-usb@vger.kernel.org Subject: [PATCH v4 36/41] usb: pci-quirks: handle HAS_IOPORT dependencies Date: Tue, 16 May 2023 13:00:32 +0200 Message-Id: <20230516110038.2413224-37-schnelle@linux.ibm.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230516110038.2413224-1-schnelle@linux.ibm.com> References: <20230516110038.2413224-1-schnelle@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: q-onxFJ_22jt4t-cNnWhH1qBM-Iro0Rf X-Proofpoint-GUID: cGjNGyZRKBa_965DZL7jie7_b6Q1mRhi X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.957,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-05-16_04,2023-05-16_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 spamscore=0 impostorscore=0 mlxscore=0 mlxlogscore=999 lowpriorityscore=0 suspectscore=0 adultscore=0 phishscore=0 bulkscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2304280000 definitions=main-2305160094 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org In a future patch HAS_IOPORT=n will result in inb()/outb() and friends not being declared. In the pci-quirks case the I/O port acceses are used in the quirks for several AMD south bridges. Move unrelated ASMEDIA quirks out of the way and introduce an additional config option for the AMD quirks that depends on HAS_IOPORT. Co-developed-by: Arnd Bergmann Signed-off-by: Arnd Bergmann Signed-off-by: Niklas Schnelle --- Note: The HAS_IOPORT Kconfig option was added in v6.4-rc1 so per-subsystem patches may be applied independently drivers/usb/Kconfig | 10 +++ drivers/usb/core/hcd-pci.c | 2 + drivers/usb/host/pci-quirks.c | 125 ++++++++++++++++++---------------- drivers/usb/host/pci-quirks.h | 30 ++++++-- 4 files changed, 101 insertions(+), 66 deletions(-) diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 7f33bcc315f2..765093112ed8 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -91,6 +91,16 @@ config USB_PCI If you have such a device you may say N here and PCI related code will not be built in the USB driver. +config USB_PCI_AMD + bool "AMD PCI USB host support" + depends on HAS_IOPORT + default X86 || MACH_LOONGSON64 || PPC_PASEMI + help + Enable workarounds for USB implementation quirks in SB600/SB700/SB800 + and later south bridge implementations. These are common on x86 PCs + with AMD CPUs but rarely used elsewhere, with the exception of a few + powerpc and mips desktop machines. + if USB source "drivers/usb/core/Kconfig" diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index ab2f3737764e..85a0aeae85cd 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -206,8 +206,10 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct hc_driver *driver) goto free_irq_vectors; } +#ifdef CONFIG_USB_PCI_AMD hcd->amd_resume_bug = (usb_hcd_amd_remote_wakeup_quirk(dev) && driver->flags & (HCD_USB11 | HCD_USB3)) ? 1 : 0; +#endif /* CONFIG_USB_PCI_AMD */ if (driver->flags & HCD_MEMORY) { /* EHCI, OHCI */ diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 2665832f9add..e0612f909fad 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -60,6 +60,23 @@ #define EHCI_USBLEGCTLSTS 4 /* legacy control/status */ #define EHCI_USBLEGCTLSTS_SOOE (1 << 13) /* SMI on ownership change */ +/* ASMEDIA quirk use */ +#define ASMT_DATA_WRITE0_REG 0xF8 +#define ASMT_DATA_WRITE1_REG 0xFC +#define ASMT_CONTROL_REG 0xE0 +#define ASMT_CONTROL_WRITE_BIT 0x02 +#define ASMT_WRITEREG_CMD 0x10423 +#define ASMT_FLOWCTL_ADDR 0xFA30 +#define ASMT_FLOWCTL_DATA 0xBA +#define ASMT_PSEUDO_DATA 0 + +/* Intel quirk use */ +#define USB_INTEL_XUSB2PR 0xD0 +#define USB_INTEL_USB2PRM 0xD4 +#define USB_INTEL_USB3_PSSEN 0xD8 +#define USB_INTEL_USB3PRM 0xDC + +#ifdef CONFIG_USB_PCI_AMD /* AMD quirk use */ #define AB_REG_BAR_LOW 0xe0 #define AB_REG_BAR_HIGH 0xe1 @@ -93,21 +110,6 @@ #define NB_PIF0_PWRDOWN_0 0x01100012 #define NB_PIF0_PWRDOWN_1 0x01100013 -#define USB_INTEL_XUSB2PR 0xD0 -#define USB_INTEL_USB2PRM 0xD4 -#define USB_INTEL_USB3_PSSEN 0xD8 -#define USB_INTEL_USB3PRM 0xDC - -/* ASMEDIA quirk use */ -#define ASMT_DATA_WRITE0_REG 0xF8 -#define ASMT_DATA_WRITE1_REG 0xFC -#define ASMT_CONTROL_REG 0xE0 -#define ASMT_CONTROL_WRITE_BIT 0x02 -#define ASMT_WRITEREG_CMD 0x10423 -#define ASMT_FLOWCTL_ADDR 0xFA30 -#define ASMT_FLOWCTL_DATA 0xBA -#define ASMT_PSEUDO_DATA 0 - /* * amd_chipset_gen values represent AMD different chipset generations */ @@ -458,50 +460,6 @@ void usb_amd_quirk_pll_disable(void) } EXPORT_SYMBOL_GPL(usb_amd_quirk_pll_disable); -static int usb_asmedia_wait_write(struct pci_dev *pdev) -{ - unsigned long retry_count; - unsigned char value; - - for (retry_count = 1000; retry_count > 0; --retry_count) { - - pci_read_config_byte(pdev, ASMT_CONTROL_REG, &value); - - if (value == 0xff) { - dev_err(&pdev->dev, "%s: check_ready ERROR", __func__); - return -EIO; - } - - if ((value & ASMT_CONTROL_WRITE_BIT) == 0) - return 0; - - udelay(50); - } - - dev_warn(&pdev->dev, "%s: check_write_ready timeout", __func__); - return -ETIMEDOUT; -} - -void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev) -{ - if (usb_asmedia_wait_write(pdev) != 0) - return; - - /* send command and address to device */ - pci_write_config_dword(pdev, ASMT_DATA_WRITE0_REG, ASMT_WRITEREG_CMD); - pci_write_config_dword(pdev, ASMT_DATA_WRITE1_REG, ASMT_FLOWCTL_ADDR); - pci_write_config_byte(pdev, ASMT_CONTROL_REG, ASMT_CONTROL_WRITE_BIT); - - if (usb_asmedia_wait_write(pdev) != 0) - return; - - /* send data to device */ - pci_write_config_dword(pdev, ASMT_DATA_WRITE0_REG, ASMT_FLOWCTL_DATA); - pci_write_config_dword(pdev, ASMT_DATA_WRITE1_REG, ASMT_PSEUDO_DATA); - pci_write_config_byte(pdev, ASMT_CONTROL_REG, ASMT_CONTROL_WRITE_BIT); -} -EXPORT_SYMBOL_GPL(usb_asmedia_modifyflowcontrol); - void usb_amd_quirk_pll_enable(void) { usb_amd_quirk_pll(0); @@ -630,7 +588,53 @@ bool usb_amd_pt_check_port(struct device *device, int port) return !(value & BIT(port_shift)); } EXPORT_SYMBOL_GPL(usb_amd_pt_check_port); +#endif /* CONFIG_USB_PCI_AMD */ +static int usb_asmedia_wait_write(struct pci_dev *pdev) +{ + unsigned long retry_count; + unsigned char value; + + for (retry_count = 1000; retry_count > 0; --retry_count) { + + pci_read_config_byte(pdev, ASMT_CONTROL_REG, &value); + + if (value == 0xff) { + dev_err(&pdev->dev, "%s: check_ready ERROR", __func__); + return -EIO; + } + + if ((value & ASMT_CONTROL_WRITE_BIT) == 0) + return 0; + + udelay(50); + } + + dev_warn(&pdev->dev, "%s: check_write_ready timeout", __func__); + return -ETIMEDOUT; +} + +void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev) +{ + if (usb_asmedia_wait_write(pdev) != 0) + return; + + /* send command and address to device */ + pci_write_config_dword(pdev, ASMT_DATA_WRITE0_REG, ASMT_WRITEREG_CMD); + pci_write_config_dword(pdev, ASMT_DATA_WRITE1_REG, ASMT_FLOWCTL_ADDR); + pci_write_config_byte(pdev, ASMT_CONTROL_REG, ASMT_CONTROL_WRITE_BIT); + + if (usb_asmedia_wait_write(pdev) != 0) + return; + + /* send data to device */ + pci_write_config_dword(pdev, ASMT_DATA_WRITE0_REG, ASMT_FLOWCTL_DATA); + pci_write_config_dword(pdev, ASMT_DATA_WRITE1_REG, ASMT_PSEUDO_DATA); + pci_write_config_byte(pdev, ASMT_CONTROL_REG, ASMT_CONTROL_WRITE_BIT); +} +EXPORT_SYMBOL_GPL(usb_asmedia_modifyflowcontrol); + +#if defined(CONFIG_HAS_IOPORT) && defined(CONFIG_USB_UHCI_HCD) /* * Make sure the controller is completely inactive, unable to * generate interrupts or do DMA. @@ -711,6 +715,7 @@ int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base) return 1; } EXPORT_SYMBOL_GPL(uhci_check_and_reset_hc); +#endif /* defined(CONFIG_HAS_IOPORT && defined(CONFIG_USB_UHCI_HCD) */ static inline int io_type_enabled(struct pci_dev *pdev, unsigned int mask) { @@ -723,6 +728,7 @@ static inline int io_type_enabled(struct pci_dev *pdev, unsigned int mask) static void quirk_usb_handoff_uhci(struct pci_dev *pdev) { +#ifdef CONFIG_HAS_IOPORT unsigned long base = 0; int i; @@ -737,6 +743,7 @@ static void quirk_usb_handoff_uhci(struct pci_dev *pdev) if (base) uhci_check_and_reset_hc(pdev, base); +#endif /* CONFIG_HAS_IOPORT */ } static int mmio_resource_enabled(struct pci_dev *pdev, int idx) diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h index e729de21fad7..8c87505f0abc 100644 --- a/drivers/usb/host/pci-quirks.h +++ b/drivers/usb/host/pci-quirks.h @@ -2,9 +2,10 @@ #ifndef __LINUX_USB_PCI_QUIRKS_H #define __LINUX_USB_PCI_QUIRKS_H -#ifdef CONFIG_USB_PCI void uhci_reset_hc(struct pci_dev *pdev, unsigned long base); int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base); + +#ifdef CONFIG_USB_PCI_AMD int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *pdev); bool usb_amd_hang_symptom_quirk(void); bool usb_amd_prefetch_quirk(void); @@ -12,23 +13,38 @@ void usb_amd_dev_put(void); bool usb_amd_quirk_pll_check(void); void usb_amd_quirk_pll_disable(void); void usb_amd_quirk_pll_enable(void); -void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev); -void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev); -void usb_disable_xhci_ports(struct pci_dev *xhci_pdev); void sb800_prefetch(struct device *dev, int on); bool usb_amd_pt_check_port(struct device *device, int port); #else -struct pci_dev; +static inline bool usb_amd_hang_symptom_quirk(void) +{ + return false; +}; +static inline bool usb_amd_prefetch_quirk(void) +{ + return false; +} +static inline bool usb_amd_quirk_pll_check(void) +{ + return false; +} static inline void usb_amd_quirk_pll_disable(void) {} static inline void usb_amd_quirk_pll_enable(void) {} -static inline void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev) {} static inline void usb_amd_dev_put(void) {} -static inline void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) {} static inline void sb800_prefetch(struct device *dev, int on) {} static inline bool usb_amd_pt_check_port(struct device *device, int port) { return false; } +#endif /* CONFIG_USB_PCI_AMD */ + +#ifdef CONFIG_USB_PCI +void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev); +void usb_enable_intel_xhci_ports(struct pci_dev *xhci_pdev); +void usb_disable_xhci_ports(struct pci_dev *xhci_pdev); +#else +static inline void usb_asmedia_modifyflowcontrol(struct pci_dev *pdev) {} +static inline void usb_disable_xhci_ports(struct pci_dev *xhci_pdev) {} #endif /* CONFIG_USB_PCI */ #endif /* __LINUX_USB_PCI_QUIRKS_H */