[src/trunk]: src/sys/external/bsd/drm2 drmkms_pci: use MSI if available.

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

details:   https://anonhg.NetBSD.org/src/rev/e74680bde0c2
branches:  trunk
changeset: 821905:e74680bde0c2
user:      nonaka <nonaka%NetBSD.org@localhost>
date:      Tue Feb 21 14:19:39 2017 +0000

description:
drmkms_pci: use MSI if available.

diffstat:

 sys/external/bsd/drm2/dist/include/drm/drmP.h |   1 +
 sys/external/bsd/drm2/pci/drm_pci.c           |  14 ++++++++------
 2 files changed, 9 insertions(+), 6 deletions(-)

diffs (59 lines):

diff -r e2b88bdf93c2 -r e74680bde0c2 sys/external/bsd/drm2/dist/include/drm/drmP.h
--- a/sys/external/bsd/drm2/dist/include/drm/drmP.h     Tue Feb 21 13:09:56 2017 +0000
+++ b/sys/external/bsd/drm2/dist/include/drm/drmP.h     Tue Feb 21 14:19:39 2017 +0000
@@ -1268,6 +1268,7 @@
        bool irq_enabled;               /**< True if irq handler is enabled */
 #ifdef __NetBSD__
        struct drm_bus_irq_cookie *irq_cookie;
+       pci_intr_handle_t *intr_handles;
 #endif
        __volatile__ long context_flag; /**< Context swapping flag */
        int last_context;               /**< Last current context */
diff -r e2b88bdf93c2 -r e74680bde0c2 sys/external/bsd/drm2/pci/drm_pci.c
--- a/sys/external/bsd/drm2/pci/drm_pci.c       Tue Feb 21 13:09:56 2017 +0000
+++ b/sys/external/bsd/drm2/pci/drm_pci.c       Tue Feb 21 14:19:39 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: drm_pci.c,v 1.13 2015/04/29 04:38:55 riastradh Exp $   */
+/*     $NetBSD: drm_pci.c,v 1.14 2017/02/21 14:19:40 nonaka Exp $      */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: drm_pci.c,v 1.13 2015/04/29 04:38:55 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: drm_pci.c,v 1.14 2017/02/21 14:19:40 nonaka Exp $");
 
 #include <sys/types.h>
 #include <sys/errno.h>
@@ -232,16 +232,17 @@
     struct drm_bus_irq_cookie **cookiep)
 {
        const struct pci_attach_args *const pa = drm_pci_attach_args(dev);
-       pci_intr_handle_t ih;
        const char *intrstr;
        void *ih_cookie;
        char intrbuf[PCI_INTRSTR_LEN];
 
-       if (pci_intr_map(pa, &ih))
+       if (pci_intr_alloc(pa, &dev->intr_handles, NULL, 0))
                return -ENOENT;
 
-       intrstr = pci_intr_string(pa->pa_pc, ih, intrbuf, sizeof(intrbuf));
-       ih_cookie = pci_intr_establish(pa->pa_pc, ih, IPL_DRM, handler, arg);
+       intrstr = pci_intr_string(pa->pa_pc, dev->intr_handles[0], intrbuf,
+           sizeof(intrbuf));
+       ih_cookie = pci_intr_establish(pa->pa_pc, dev->intr_handles[0],
+           IPL_DRM, handler, arg);
        if (ih_cookie == NULL) {
                aprint_error_dev(dev->dev,
                    "couldn't establish interrupt at %s (%s)\n",
@@ -262,6 +263,7 @@
        const struct pci_attach_args *pa = drm_pci_attach_args(dev);
 
        pci_intr_disestablish(pa->pa_pc, (void *)cookie);
+       pci_intr_release(pa->pa_pc, dev->intr_handles, 1);
 }
 
 static const char *