[src/trunk]: src/sys/dev/pci enable MSI support where available

[jdolecek <jdolecek%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8fcdc5176e1f
branches:  trunk
changeset: 445319:8fcdc5176e1f
user:      jdolecek <jdolecek%NetBSD.org@localhost>
date:      Mon Oct 22 21:04:53 2018 +0000

description:
enable MSI support where available

diffstat:

 sys/dev/pci/ahcisata_pci.c |  25 ++++++++++++++++---------
 1 files changed, 16 insertions(+), 9 deletions(-)

diffs (72 lines):

diff -r b0fd2801a4bd -r 8fcdc5176e1f sys/dev/pci/ahcisata_pci.c
--- a/sys/dev/pci/ahcisata_pci.c        Mon Oct 22 20:57:07 2018 +0000
+++ b/sys/dev/pci/ahcisata_pci.c        Mon Oct 22 21:04:53 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ahcisata_pci.c,v 1.38 2016/10/13 17:11:09 jdolecek Exp $       */
+/*     $NetBSD: ahcisata_pci.c,v 1.39 2018/10/22 21:04:53 jdolecek Exp $       */
 
 /*
  * Copyright (c) 2006 Manuel Bouyer.
@@ -26,7 +26,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ahcisata_pci.c,v 1.38 2016/10/13 17:11:09 jdolecek Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ahcisata_pci.c,v 1.39 2018/10/22 21:04:53 jdolecek Exp $");
 
 #include <sys/types.h>
 #include <sys/malloc.h>
@@ -200,7 +200,8 @@
        struct ahci_softc ah_sc;
        pci_chipset_tag_t sc_pc;
        pcitag_t sc_pcitag;
-       void * sc_ih;
+       pci_intr_handle_t *sc_pihp;
+       void *sc_ih;
 };
 
 static int  ahci_pci_has_quirk(pci_vendor_id_t, pci_product_id_t);
@@ -270,7 +271,6 @@
        const char *intrstr;
        bool ahci_cap_64bit;
        bool ahci_bad_64bit;
-       pci_intr_handle_t intrhandle;
        char intrbuf[PCI_INTRSTR_LEN];
 
        sc->sc_atac.atac_dev = self;
@@ -286,14 +286,14 @@
 
        pci_aprint_devinfo(pa, "AHCI disk controller");
        
-       if (pci_intr_map(pa, &intrhandle) != 0) {
+       if (pci_intr_alloc(pa, &psc->sc_pihp, NULL, 0) != 0) {
                aprint_error_dev(self, "couldn't map interrupt\n");
                return;
        }
-       intrstr = pci_intr_string(pa->pa_pc, intrhandle,
+       intrstr = pci_intr_string(pa->pa_pc, psc->sc_pihp[0],
            intrbuf, sizeof(intrbuf));
-       psc->sc_ih = pci_intr_establish_xname(pa->pa_pc, intrhandle, IPL_BIO,
-           ahci_intr, sc, device_xname(sc->sc_atac.atac_dev));
+       psc->sc_ih = pci_intr_establish_xname(pa->pa_pc, psc->sc_pihp[0],
+           IPL_BIO, ahci_intr, sc, device_xname(sc->sc_atac.atac_dev));
        if (psc->sc_ih == NULL) {
                aprint_error_dev(self, "couldn't establish interrupt\n");
                return;
@@ -343,8 +343,15 @@
 
        pmf_device_deregister(dv);
 
-       if (psc->sc_ih != NULL)
+       if (psc->sc_pihp != NULL) {
+               pci_intr_release(psc->sc_pc, psc->sc_pihp, 1);
+               psc->sc_pihp = NULL;
+       }
+
+       if (psc->sc_ih != NULL) {
                pci_intr_disestablish(psc->sc_pc, psc->sc_ih);
+               psc->sc_ih = NULL;
+       }
 
        bus_space_unmap(sc->sc_ahcit, sc->sc_ahcih, sc->sc_ahcis);