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[src/trunk]: src/sys/external/bsd/drm2 Split drm_dev_alloc/register out of dr...



details:   https://anonhg.NetBSD.org/src/rev/dae11305b5b9
branches:  trunk
changeset: 1028453:dae11305b5b9
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Dec 19 11:05:12 2021 +0000

description:
Split drm_dev_alloc/register out of drm_pci_attach.

Needed by nouveau which needs to do

drm_dev_alloc
drm_pci_attach
nouveau_drm_device_init
drm_dev_register

diffstat:

 sys/external/bsd/drm2/amdgpu/amdgpu_pci.c         |  45 +++++++++++++++------
 sys/external/bsd/drm2/dist/include/drm/drm_pci.h  |   9 +--
 sys/external/bsd/drm2/i915drm/i915_pci_autoconf.c |  46 +++++++++++++++------
 sys/external/bsd/drm2/nouveau/nouveau_pci.c       |  42 ++++++++++++++-----
 sys/external/bsd/drm2/pci/drm_pci.c               |  48 +++-------------------
 sys/external/bsd/drm2/radeon/radeon_pci.c         |  48 ++++++++++++++++------
 6 files changed, 142 insertions(+), 96 deletions(-)

diffs (truncated from 491 to 300 lines):

diff -r 4718b66ff41d -r dae11305b5b9 sys/external/bsd/drm2/amdgpu/amdgpu_pci.c
--- a/sys/external/bsd/drm2/amdgpu/amdgpu_pci.c Sun Dec 19 11:05:05 2021 +0000
+++ b/sys/external/bsd/drm2/amdgpu/amdgpu_pci.c Sun Dec 19 11:05:12 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: amdgpu_pci.c,v 1.6 2021/12/19 10:32:59 riastradh Exp $ */
+/*     $NetBSD: amdgpu_pci.c,v 1.7 2021/12/19 11:05:12 riastradh Exp $ */
 
 /*-
  * Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: amdgpu_pci.c,v 1.6 2021/12/19 10:32:59 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: amdgpu_pci.c,v 1.7 2021/12/19 11:05:12 riastradh Exp $");
 
 #include <sys/types.h>
 #include <sys/queue.h>
@@ -58,6 +58,8 @@
        }                               sc_task_u;
        struct drm_device               *sc_drm_dev;
        struct pci_dev                  sc_pci_dev;
+       bool                            sc_pci_attached;
+       bool                            sc_dev_registered;
 };
 
 static bool    amdgpu_pci_lookup(const struct pci_attach_args *,
@@ -159,13 +161,29 @@
        /* Initialize the Linux PCI device descriptor.  */
        linux_pci_dev_init(&sc->sc_pci_dev, self, device_parent(self), pa, 0);
 
+       sc->sc_drm_dev = drm_dev_alloc(amdgpu_drm_driver, self);
+       if (IS_ERR(sc->sc_drm_dev)) {
+               aprint_error_dev(self, "unable to create drm device: %ld\n",
+                   PTR_ERR(sc->sc_drm_dev));
+               sc->sc_drm_dev = NULL;
+               goto out;
+       }
+
        /* XXX errno Linux->NetBSD */
-       error = -drm_pci_attach(self, pa, &sc->sc_pci_dev, amdgpu_drm_driver,
-           flags, &sc->sc_drm_dev);
+       error = -drm_pci_attach(sc->sc_drm_dev, pa, &sc->sc_pci_dev);
        if (error) {
                aprint_error_dev(self, "unable to attach drm: %d\n", error);
                goto out;
        }
+       sc->sc_pci_attached = true;
+
+       /* XXX errno Linux->NetBSD */
+       error = -drm_dev_register(sc->sc_drm_dev, flags);
+       if (error) {
+               aprint_error_dev(self, "unable to register drm: %d\n", error);
+               return;
+       }
+       sc->sc_dev_registered = true;
 
        while (!SIMPLEQ_EMPTY(&sc->sc_task_u.attach)) {
                struct amdgpu_task *const task =
@@ -211,17 +229,18 @@
        }
 
        if (sc->sc_drm_dev == NULL)
-               goto out;
-       /* XXX errno Linux->NetBSD */
-       error = -drm_pci_detach(sc->sc_drm_dev, flags);
-       if (error)
-               /* XXX Kinda too late to fail now...  */
-               return error;
+               goto out0;
+       if (!sc->sc_pci_attached)
+               goto out1;
+       if (!sc->sc_dev_registered)
+               goto out2;
+
+       drm_dev_unregister(sc->sc_drm_dev);
+out2:  drm_pci_detach(sc->sc_drm_dev);
+out1:  drm_dev_put(sc->sc_drm_dev);
        sc->sc_drm_dev = NULL;
-
-out:   linux_pci_dev_destroy(&sc->sc_pci_dev);
+out0:  linux_pci_dev_destroy(&sc->sc_pci_dev);
        pmf_device_deregister(self);
-
        return 0;
 }
 
diff -r 4718b66ff41d -r dae11305b5b9 sys/external/bsd/drm2/dist/include/drm/drm_pci.h
--- a/sys/external/bsd/drm2/dist/include/drm/drm_pci.h  Sun Dec 19 11:05:05 2021 +0000
+++ b/sys/external/bsd/drm2/dist/include/drm/drm_pci.h  Sun Dec 19 11:05:12 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: drm_pci.h,v 1.6 2021/12/19 10:51:39 riastradh Exp $    */
+/*     $NetBSD: drm_pci.h,v 1.7 2021/12/19 11:05:12 riastradh Exp $    */
 
 /*
  * Internal Header for the Direct Rendering Manager
@@ -76,10 +76,9 @@
 #ifdef __NetBSD__
 int drm_pci_request_irq(struct drm_device *, int);
 void drm_pci_free_irq(struct drm_device *);
-extern int drm_pci_attach(device_t, const struct pci_attach_args *,
-    struct pci_dev *, struct drm_driver *, unsigned long,
-    struct drm_device **);
-extern int drm_pci_detach(struct drm_device *, int);
+int drm_pci_attach(struct drm_device *, const struct pci_attach_args *,
+    struct pci_dev *);
+void drm_pci_detach(struct drm_device *);
 int drm_pci_set_busid(struct drm_device *, struct drm_master *);
 #endif
 
diff -r 4718b66ff41d -r dae11305b5b9 sys/external/bsd/drm2/i915drm/i915_pci_autoconf.c
--- a/sys/external/bsd/drm2/i915drm/i915_pci_autoconf.c Sun Dec 19 11:05:05 2021 +0000
+++ b/sys/external/bsd/drm2/i915drm/i915_pci_autoconf.c Sun Dec 19 11:05:12 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: i915_pci_autoconf.c,v 1.3 2021/12/19 10:32:59 riastradh Exp $  */
+/*     $NetBSD: i915_pci_autoconf.c,v 1.4 2021/12/19 11:05:12 riastradh Exp $  */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: i915_pci_autoconf.c,v 1.3 2021/12/19 10:32:59 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: i915_pci_autoconf.c,v 1.4 2021/12/19 11:05:12 riastradh Exp $");
 
 #include <sys/types.h>
 #include <sys/queue.h>
@@ -58,6 +58,8 @@
        }                               sc_task_u;
        struct drm_device               *sc_drm_dev;
        struct pci_dev                  sc_pci_dev;
+       bool                            sc_pci_attached;
+       bool                            sc_dev_registered;
 };
 
 static const struct intel_device_info *
@@ -177,13 +179,29 @@
        /* Initialize the Linux PCI device descriptor.  */
        linux_pci_dev_init(&sc->sc_pci_dev, self, device_parent(self), pa, 0);
 
+       sc->sc_drm_dev = drm_dev_alloc(i915_drm_driver, self);
+       if (IS_ERR(sc->sc_drm_dev)) {
+               aprint_error_dev(self, "unable to create drm device: %ld\n",
+                   PTR_ERR(sc->sc_drm_dev));
+               sc->sc_drm_dev = NULL;
+               return;
+       }
+
        /* XXX errno Linux->NetBSD */
-       error = -drm_pci_attach(self, pa, &sc->sc_pci_dev, i915_drm_driver,
-           cookie, &sc->sc_drm_dev);
+       error = -drm_pci_attach(sc->sc_drm_dev, pa, &sc->sc_pci_dev);
        if (error) {
                aprint_error_dev(self, "unable to attach drm: %d\n", error);
                return;
        }
+       sc->sc_pci_attached = true;
+
+       /* XXX errno Linux->NetBSD */
+       error = -drm_dev_register(sc->sc_drm_dev, cookie);
+       if (error) {
+               aprint_error_dev(self, "unable to register drm: %d\n", error);
+               return;
+       }
+       sc->sc_dev_registered = true;
 
        while (!SIMPLEQ_EMPTY(&sc->sc_task_u.attach)) {
                struct i915drmkms_task *const task =
@@ -216,22 +234,24 @@
                return error;
 
        if (sc->sc_task_state == I915DRMKMS_TASK_ATTACH)
-               goto out;
+               goto out0;
        if (sc->sc_task_u.workqueue != NULL) {
                workqueue_destroy(sc->sc_task_u.workqueue);
                sc->sc_task_u.workqueue = NULL;
        }
 
        if (sc->sc_drm_dev == NULL)
-               goto out;
-       /* XXX errno Linux->NetBSD */
-       error = -drm_pci_detach(sc->sc_drm_dev, flags);
-       if (error)
-               /* XXX Kinda too late to fail now...  */
-               return error;
+               goto out0;
+       if (!sc->sc_pci_attached)
+               goto out1;
+       if (!sc->sc_dev_registered)
+               goto out2;
+
+       drm_dev_unregister(sc->sc_drm_dev);
+out2:  drm_pci_detach(sc->sc_drm_dev);
+out1:  drm_dev_put(sc->sc_drm_dev);
        sc->sc_drm_dev = NULL;
-
-out:   linux_pci_dev_destroy(&sc->sc_pci_dev);
+out0:  linux_pci_dev_destroy(&sc->sc_pci_dev);
        pmf_device_deregister(self);
        return 0;
 }
diff -r 4718b66ff41d -r dae11305b5b9 sys/external/bsd/drm2/nouveau/nouveau_pci.c
--- a/sys/external/bsd/drm2/nouveau/nouveau_pci.c       Sun Dec 19 11:05:05 2021 +0000
+++ b/sys/external/bsd/drm2/nouveau/nouveau_pci.c       Sun Dec 19 11:05:12 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nouveau_pci.c,v 1.29 2021/12/19 10:51:59 riastradh Exp $       */
+/*     $NetBSD: nouveau_pci.c,v 1.30 2021/12/19 11:05:13 riastradh Exp $       */
 
 /*-
  * Copyright (c) 2015 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nouveau_pci.c,v 1.29 2021/12/19 10:51:59 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nouveau_pci.c,v 1.30 2021/12/19 11:05:13 riastradh Exp $");
 
 #ifdef _KERNEL_OPT
 #if defined(__arm__) || defined(__aarch64__)
@@ -76,6 +76,8 @@
        struct drm_device       *sc_drm_dev;
        struct pci_dev          sc_pci_dev;
        struct nvkm_device      *sc_nv_dev;
+       bool                    sc_pci_attached;
+       bool                    sc_dev_registered;
 };
 
 static int     nouveau_pci_match(device_t, cfdata_t, void *);
@@ -200,16 +202,33 @@
        if (error) {
                aprint_error_dev(self, "unable to create nouveau device: %d\n",
                    error);
+               sc->sc_nv_dev = NULL;
+               return;
+       }
+
+       sc->sc_drm_dev = drm_dev_alloc(nouveau_drm_driver_pci, self);
+       if (IS_ERR(sc->sc_drm_dev)) {
+               aprint_error_dev(self, "unable to create drm device: %ld\n",
+                   PTR_ERR(sc->sc_drm_dev));
+               sc->sc_drm_dev = NULL;
                return;
        }
 
        /* XXX errno Linux->NetBSD */
-       error = -drm_pci_attach(self, pa, &sc->sc_pci_dev,
-           nouveau_drm_driver_pci, 0, &sc->sc_drm_dev);
+       error = -drm_pci_attach(sc->sc_drm_dev, pa, &sc->sc_pci_dev);
        if (error) {
                aprint_error_dev(self, "unable to attach drm: %d\n", error);
                return;
        }
+       sc->sc_pci_attached = true;
+
+       /* XXX errno Linux->NetBSD */
+       error = -drm_dev_register(sc->sc_drm_dev, 0);
+       if (error) {
+               aprint_error_dev(self, "unable to register drm: %d\n", error);
+               return;
+       }
+       sc->sc_dev_registered = true;
 
        while (!SIMPLEQ_EMPTY(&sc->sc_task_u.attach)) {
                struct nouveau_pci_task *const task =
@@ -254,16 +273,17 @@
 
        if (sc->sc_nv_dev == NULL)
                goto out0;
-
        if (sc->sc_drm_dev == NULL)
                goto out1;
-       /* XXX errno Linux->NetBSD */
-       error = -drm_pci_detach(sc->sc_drm_dev, flags);
-       if (error)
-               /* XXX Kinda too late to fail now...  */
-               return error;
+       if (!sc->sc_pci_attached)
+               goto out2;
+       if (!sc->sc_dev_registered)
+               goto out3;
+
+       drm_dev_unregister(sc->sc_drm_dev);
+out3:  drm_pci_detach(sc->sc_drm_dev);
+out2:  drm_dev_put(sc->sc_drm_dev);
        sc->sc_drm_dev = NULL;
-
 out1:  nvkm_device_del(&sc->sc_nv_dev);
 out0:  linux_pci_dev_destroy(&sc->sc_pci_dev);
        pmf_device_deregister(self);
diff -r 4718b66ff41d -r dae11305b5b9 sys/external/bsd/drm2/pci/drm_pci.c
--- a/sys/external/bsd/drm2/pci/drm_pci.c       Sun Dec 19 11:05:05 2021 +0000
+++ b/sys/external/bsd/drm2/pci/drm_pci.c       Sun Dec 19 11:05:12 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: drm_pci.c,v 1.43 2021/12/19 11:01:22 riastradh Exp $   */
+/*     $NetBSD: drm_pci.c,v 1.44 2021/12/19 11:05:13 riastradh Exp $   */
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.



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