Date: Fri, 15 Jan 2010 23:58:37 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r202428 - stable/8/sys/dev/ahci Message-ID: <201001152358.o0FNwbHH028265@svn.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: mav Date: Fri Jan 15 23:58:37 2010 New Revision: 202428 URL: http://svn.freebsd.org/changeset/base/202428 Log: MFC r202011: While AHCI specification tells that multi-vector MSI doesn't use global IS register, nVidia chipsets have different oppinion, requiring every interrupt to be acknowledged there. While there, add interrupt descriptions in multi-vector MSI mode. Modified: stable/8/sys/dev/ahci/ahci.c Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/xen/xenpci/ (props changed) Modified: stable/8/sys/dev/ahci/ahci.c ============================================================================== --- stable/8/sys/dev/ahci/ahci.c Fri Jan 15 23:56:19 2010 (r202427) +++ stable/8/sys/dev/ahci/ahci.c Fri Jan 15 23:58:37 2010 (r202428) @@ -570,6 +570,12 @@ ahci_setup_interrupt(device_t dev) device_printf(dev, "unable to setup interrupt\n"); return ENXIO; } + if (ctlr->numirqs > 1) { + bus_describe_intr(dev, ctlr->irqs[i].r_irq, + ctlr->irqs[i].handle, + ctlr->irqs[i].mode == AHCI_IRQ_MODE_ONE ? + "ch%d" : "%d", i); + } } return (0); } @@ -624,8 +630,14 @@ ahci_intr_one(void *data) int unit; unit = irq->r_irq_rid - 1; + /* Some controllers have edge triggered IS. */ + if (ctlr->quirks & AHCI_Q_EDGEIS) + ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); if ((arg = ctlr->interrupt[unit].argument)) ctlr->interrupt[unit].function(arg); + /* AHCI declares level triggered IS. */ + if (!(ctlr->quirks & AHCI_Q_EDGEIS)) + ATA_OUTL(ctlr->r_mem, AHCI_IS, 1 << unit); } static struct resource *
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201001152358.o0FNwbHH028265>