From owner-svn-src-all@freebsd.org Sun Jan 3 15:24:59 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3E0A1A5F9A1; Sun, 3 Jan 2016 15:24:59 +0000 (UTC) (envelope-from jhibbits@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 001C41D13; Sun, 3 Jan 2016 15:24:58 +0000 (UTC) (envelope-from jhibbits@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u03FOw7h041545; Sun, 3 Jan 2016 15:24:58 GMT (envelope-from jhibbits@FreeBSD.org) Received: (from jhibbits@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u03FOwgC041544; Sun, 3 Jan 2016 15:24:58 GMT (envelope-from jhibbits@FreeBSD.org) Message-Id: <201601031524.u03FOwgC041544@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jhibbits set sender to jhibbits@FreeBSD.org using -f From: Justin Hibbits Date: Sun, 3 Jan 2016 15:24:58 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r293106 - head/sys/powerpc/mpc85xx X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 03 Jan 2016 15:24:59 -0000 Author: jhibbits Date: Sun Jan 3 15:24:57 2016 New Revision: 293106 URL: https://svnweb.freebsd.org/changeset/base/293106 Log: Add error interrupt handler for Freescale PCI errors This eliminates a 'interrupt storm' warning spam with the P5020. Obtained from: Semihalf Modified: head/sys/powerpc/mpc85xx/pci_mpc85xx.c Modified: head/sys/powerpc/mpc85xx/pci_mpc85xx.c ============================================================================== --- head/sys/powerpc/mpc85xx/pci_mpc85xx.c Sun Jan 3 14:46:19 2016 (r293105) +++ head/sys/powerpc/mpc85xx/pci_mpc85xx.c Sun Jan 3 15:24:57 2016 (r293106) @@ -94,6 +94,29 @@ __FBSDID("$FreeBSD$"); #define REG_PEX_ERR_DR 0x0e00 #define REG_PEX_ERR_EN 0x0e08 +#define REG_PEX_ERR_DR 0x0e00 +#define REG_PEX_ERR_DR_ME 0x80000000 +#define REG_PEX_ERR_DR_PCT 0x800000 +#define REG_PEX_ERR_DR_PAT 0x400000 +#define REG_PEX_ERR_DR_PCAC 0x200000 +#define REG_PEX_ERR_DR_PNM 0x100000 +#define REG_PEX_ERR_DR_CDNSC 0x80000 +#define REG_PEX_ERR_DR_CRSNC 0x40000 +#define REG_PEX_ERR_DR_ICCA 0x20000 +#define REG_PEX_ERR_DR_IACA 0x10000 +#define REG_PEX_ERR_DR_CRST 0x8000 +#define REG_PEX_ERR_DR_MIS 0x4000 +#define REG_PEX_ERR_DR_IOIS 0x2000 +#define REG_PEX_ERR_DR_CIS 0x1000 +#define REG_PEX_ERR_DR_CIEP 0x800 +#define REG_PEX_ERR_DR_IOIEP 0x400 +#define REG_PEX_ERR_DR_OAC 0x200 +#define REG_PEX_ERR_DR_IOIA 0x100 +#define REG_PEX_ERR_DR_IMBA 0x80 +#define REG_PEX_ERR_DR_IIOBA 0x40 +#define REG_PEX_ERR_DR_LDDE 0x20 +#define REG_PEX_ERR_EN 0x0e08 + #define PCIR_LTSSM 0x404 #define LTSSM_STAT_L0 0x16 @@ -113,6 +136,9 @@ struct fsl_pcib_softc { bus_space_tag_t sc_bst; int sc_rid; + struct resource *sc_irq_res; + void *sc_ih; + int sc_busnr; int sc_pcie; uint8_t sc_pcie_capreg; /* PCI-E Capability Reg Set */ @@ -122,6 +148,34 @@ struct fsl_pcib_softc { int sc_devfn_via_ide; }; +struct fsl_pcib_err_dr { + const char *msg; + uint32_t err_dr_mask; +}; + +static const struct fsl_pcib_err_dr pci_err[] = { + {"ME", REG_PEX_ERR_DR_ME}, + {"PCT", REG_PEX_ERR_DR_PCT}, + {"PAT", REG_PEX_ERR_DR_PAT}, + {"PCAC", REG_PEX_ERR_DR_PCAC}, + {"PNM", REG_PEX_ERR_DR_PNM}, + {"CDNSC", REG_PEX_ERR_DR_CDNSC}, + {"CRSNC", REG_PEX_ERR_DR_CRSNC}, + {"ICCA", REG_PEX_ERR_DR_ICCA}, + {"IACA", REG_PEX_ERR_DR_IACA}, + {"CRST", REG_PEX_ERR_DR_CRST}, + {"MIS", REG_PEX_ERR_DR_MIS}, + {"IOIS", REG_PEX_ERR_DR_IOIS}, + {"CIS", REG_PEX_ERR_DR_CIS}, + {"CIEP", REG_PEX_ERR_DR_CIEP}, + {"IOIEP", REG_PEX_ERR_DR_IOIEP}, + {"OAC", REG_PEX_ERR_DR_OAC}, + {"IOIA", REG_PEX_ERR_DR_IOIA}, + {"IMBA", REG_PEX_ERR_DR_IMBA}, + {"IIOBA", REG_PEX_ERR_DR_IIOBA}, + {"LDDE", REG_PEX_ERR_DR_LDDE} +}; + /* Local forward declerations. */ static uint32_t fsl_pcib_cfgread(struct fsl_pcib_softc *, u_int, u_int, u_int, u_int, int); @@ -173,6 +227,35 @@ DEFINE_CLASS_1(pcib, fsl_pcib_driver, fs DRIVER_MODULE(pcib, ofwbus, fsl_pcib_driver, fsl_pcib_devclass, 0, 0); static int +fsl_pcib_err_intr(void *v) +{ + struct fsl_pcib_softc *sc; + device_t dev; + uint32_t err_reg, clear_reg; + uint8_t i; + + dev = (device_t)v; + sc = device_get_softc(dev); + + clear_reg = 0; + err_reg = bus_space_read_4(sc->sc_bst, sc->sc_bsh, REG_PEX_ERR_DR); + + /* Check which one error occurred */ + for (i = 0; i < sizeof(pci_err)/sizeof(struct fsl_pcib_err_dr); i++) { + if (err_reg & pci_err[i].err_dr_mask) { + device_printf(dev, "PCI %d: report %s error\n", + device_get_unit(dev), pci_err[i].msg); + clear_reg |= pci_err[i].err_dr_mask; + } + } + + /* Clear pending errors */ + bus_space_write_4(sc->sc_bst, sc->sc_bsh, REG_PEX_ERR_DR, clear_reg); + + return (0); +} + +static int fsl_pcib_probe(device_t dev) { @@ -198,7 +281,7 @@ fsl_pcib_attach(device_t dev) struct fsl_pcib_softc *sc; phandle_t node; uint32_t cfgreg; - int maxslot, error; + int error, maxslot, rid; uint8_t ltssm, capptr; sc = device_get_softc(dev); @@ -279,6 +362,34 @@ fsl_pcib_attach(device_t dev) } } + /* Allocate irq */ + sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, + RF_ACTIVE | RF_SHAREABLE); + if (sc->sc_irq_res == NULL) { + error = fsl_pcib_detach(dev); + if (error != 0) { + device_printf(dev, + "Detach of the driver failed with error %d\n", + error); + } + return (ENXIO); + } + + /* Setup interrupt handler */ + error = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_MISC | INTR_MPSAFE, + NULL, (driver_intr_t *)fsl_pcib_err_intr, dev, &sc->sc_ih); + if (error != 0) { + device_printf(dev, "Could not setup irq, %d\n", error); + sc->sc_ih = NULL; + error = fsl_pcib_detach(dev); + if (error != 0) { + device_printf(dev, + "Detach of the driver failed with error %d\n", + error); + } + return (ENXIO); + } + fsl_pcib_err_init(dev); return (ofw_pci_attach(dev));