[src/netbsd-8]: src/sys/external/bsd/drm2/nouveau Pull up following revision(...

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

details:   https://anonhg.NetBSD.org/src/rev/a310962c8bce
branches:  netbsd-8
changeset: 852756:a310962c8bce
user:      martin <martin%NetBSD.org@localhost>
date:      Sun Mar 08 09:28:04 2020 +0000

description:
Pull up following revision(s) (requested by mrg in ticket #1512):

        sys/external/bsd/drm2/nouveau/nouveau_pci.c: revision 1.24,1.25
        (via patch)

Improve nouveau pci attachment code so it waits for the availability of /
before trying to load firmware.
Fixes my PR 54274.

LGTM mrg


list the PCI ID range for new nvidia TU117 and TU116.

adjust the check to simply be >= 0x1580, which is the
first pciid not support.

should fix PR#54600.

diffstat:

 sys/external/bsd/drm2/nouveau/nouveau_pci.c |  81 +++++++++++++++++-----------
 1 files changed, 49 insertions(+), 32 deletions(-)

diffs (145 lines):

diff -r 07e1751970c1 -r a310962c8bce sys/external/bsd/drm2/nouveau/nouveau_pci.c
--- a/sys/external/bsd/drm2/nouveau/nouveau_pci.c       Tue Mar 03 18:41:42 2020 +0000
+++ b/sys/external/bsd/drm2/nouveau/nouveau_pci.c       Sun Mar 08 09:28:04 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nouveau_pci.c,v 1.8.10.2 2018/12/25 11:25:00 martin Exp $      */
+/*     $NetBSD: nouveau_pci.c,v 1.8.10.3 2020/03/08 09:28:04 martin Exp $      */
 
 /*-
  * Copyright (c) 2015 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nouveau_pci.c,v 1.8.10.2 2018/12/25 11:25:00 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nouveau_pci.c,v 1.8.10.3 2020/03/08 09:28:04 martin Exp $");
 
 #include <sys/types.h>
 #include <sys/device.h>
@@ -51,6 +51,7 @@
 
 struct nouveau_pci_softc {
        device_t                sc_dev;
+       struct pci_attach_args  sc_pa;
        enum {
                NOUVEAU_TASK_ATTACH,
                NOUVEAU_TASK_WORKQUEUE,
@@ -66,6 +67,7 @@
 
 static int     nouveau_pci_match(device_t, cfdata_t, void *);
 static void    nouveau_pci_attach(device_t, device_t, void *);
+static void    nouveau_pci_attach_real(device_t);
 static int     nouveau_pci_detach(device_t, int);
 
 static bool    nouveau_pci_suspend(device_t, const pmf_qual_t *);
@@ -91,17 +93,13 @@
        if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY)
                return 0;
 
-#define IS_BETWEEN(x,y) \
-       (PCI_PRODUCT(pa->pa_id) >= (x) && PCI_PRODUCT(pa->pa_id) <= (y))
        /*
-        * NetBSD drm2 needs missing-so-far firmware for Maxwell-based cards:
-        *   0x1380-0x13bf      GM107
-        */
-       if (IS_BETWEEN(0x1380, 0x13bf))
-               return 0;
-
-       /*
-        * NetBSD drm2 doesn't support Pascal, Volta or Turing based cards:
+        * NetBSD 8.x drm2 doesn't support Maxwell, Pascal, Volta or Turing
+        * based cards:
+        *   0x1340-0x137f      GM108   [1]
+        *   0x1380-0x13bf      GM107   [1]
+        *   0x13c0-0x13ff      GM204
+        *   0x1400-0x147f      GM206
         *   0x1580-0x15ff      GP100
         *   0x1b00-0x1b7f      GP102
         *   0x1b80-0x1bff      GP104
@@ -112,20 +110,20 @@
         *   0x1e00-0x1e7f      TU102
         *   0x1e80-0x1eff      TU104
         *   0x1f00-0x1f7f      TU106
+        *   0x1f80-0x1fff      TU117
+        *   0x2180-0x21ff      TU116
+        *
+        * [1] GM107/GM108 may work if firmware files are provided.
+        * There are Windows and Linux methods to extract them, but they
+        * are not readily available.  NetBSD-9 drm works.
+        *
+        * reduce this to >= 1300, so that new chipsets not explictly
+        * listed above will be picked up.
+        *
+        * XXX perhaps switch this to explicitly match known list.
         */
-       
-       if (IS_BETWEEN(0x1580, 0x15ff) ||
-           IS_BETWEEN(0x1b00, 0x1b7f) ||
-           IS_BETWEEN(0x1b80, 0x1bff) ||
-           IS_BETWEEN(0x1c00, 0x1c7f) ||
-           IS_BETWEEN(0x1c80, 0x1cff) ||
-           IS_BETWEEN(0x1d00, 0x1d7f) ||
-           IS_BETWEEN(0x1d80, 0x1dff) ||
-           IS_BETWEEN(0x1e00, 0x1e7f) ||
-           IS_BETWEEN(0x1e80, 0x1eff) ||
-           IS_BETWEEN(0x1f00, 0x1f7f))
+       if (PCI_PRODUCT(pa->pa_id) >= 0x1300)
                return 0;
-#undef IS_BETWEEN
 
        return 6;               /* XXX Beat genfb_pci...  */
 }
@@ -138,19 +136,34 @@
 {
        struct nouveau_pci_softc *const sc = device_private(self);
        const struct pci_attach_args *const pa = aux;
-       uint64_t devname;
-       int error;
 
        pci_aprint_devinfo(pa, NULL);
 
-       sc->sc_dev = self;
-
-       if (!pmf_device_register(self, &nouveau_pci_suspend,
-               &nouveau_pci_resume))
+       if (!pmf_device_register(self, &nouveau_pci_suspend, &nouveau_pci_resume))
                aprint_error_dev(self, "unable to establish power handler\n");
 
-       sc->sc_task_state = NOUVEAU_TASK_ATTACH;
-       SIMPLEQ_INIT(&sc->sc_task_u.attach);
+       /*
+        * Trivial initialization first; the rest will come after we
+        * have mounted the root file system and can load firmware
+        * images.
+        */
+       sc->sc_dev = NULL;
+       sc->sc_pa = *pa;
+
+       config_mountroot(self, &nouveau_pci_attach_real);
+}
+ 
+static void
+nouveau_pci_attach_real(device_t self)
+{
+       struct nouveau_pci_softc *const sc = device_private(self);
+       const struct pci_attach_args *const pa = &sc->sc_pa;
+       uint64_t devname;
+       int error;
+
+       sc->sc_dev = self;
+       sc->sc_task_state = NOUVEAU_TASK_ATTACH;
+       SIMPLEQ_INIT(&sc->sc_task_u.attach);
 
        devname = (uint64_t)device_unit(device_parent(self)) << 32;
        devname |= pa->pa_bus << 16;
@@ -197,6 +210,10 @@
        struct nouveau_pci_softc *const sc = device_private(self);
        int error;
 
+       if (sc->sc_dev == NULL)
+               /* Not done attaching.  */
+               return EBUSY;
+
        /* XXX Check for in-use before tearing it all down...  */
        error = config_detach_children(self, flags);
        if (error)