drm/nouveau/device: separate construction of pci/tegra devices

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/include/nvif/os.h

@@ -27,6 +27,8 @@
 
 #include <asm/unaligned.h>
 
+#include <soc/tegra/fuse.h>
+
 #ifndef ioread32_native
 #ifdef __BIG_ENDIAN
 #define ioread16_native ioread16be
@@ -40,5 +42,4 @@
 #define iowrite32_native iowrite32
 #endif /* def __BIG_ENDIAN else */
 #endif /* !ioread32_native */
-
 #endif

drivers/gpu/drm/nouveau/include/nvkm/core/client.h

@@ -28,7 +28,9 @@ nvkm_client(void *obj)
 	struct nvkm_object *client = nv_object(obj);
 	while (client && client->parent)
 		client = client->parent;
-	return (void *)client;
+	if (client && nv_iclass(client, NV_CLIENT_CLASS))
+		return (void *)client;
+	return NULL;
 }
 
 int  nvkm_client_new(const char *name, u64 device, const char *cfg,

drivers/gpu/drm/nouveau/include/nvkm/core/device.h

@@ -65,22 +65,25 @@ enum nvkm_devidx {
 struct nvkm_device {
 	struct nvkm_engine engine;
 
+	const struct nvkm_device_func *func;
+	const struct nvkm_device_quirk *quirk;
+	struct device *dev;
+	u64 handle;
+	const char *name;
+	const char *cfgopt;
+	const char *dbgopt;
+
 	struct list_head head;
 	struct mutex mutex;
 	int refcount;
 
 	struct pci_dev *pdev;
 	struct platform_device *platformdev;
-	struct device *dev;
-	u64 handle;
 
 	void __iomem *pri;
 
 	struct nvkm_event event;
 
-	const char *cfgopt;
-	const char *dbgopt;
-	const char *name;
 	const char *cname;
 	u64 disable_mask;
 
@@ -150,6 +153,17 @@ struct nvkm_device {
 	struct nouveau_platform_gpu *gpu;
 };
 
+struct nvkm_device_func {
+	struct nvkm_device_pci *(*pci)(struct nvkm_device *);
+	struct nvkm_device_tegra *(*tegra)(struct nvkm_device *);
+	void *(*dtor)(struct nvkm_device *);
+	int (*preinit)(struct nvkm_device *);
+	void (*fini)(struct nvkm_device *, bool suspend);
+};
+
+struct nvkm_device_quirk {
+};
+
 struct nvkm_device *nvkm_device_find(u64 name);
 int nvkm_device_list(u64 *name, int size);
 
@@ -214,13 +228,7 @@ enum nv_bus_type {
 
 extern struct nvkm_ofuncs nvkm_udevice_ofuncs;
 
-int  nvkm_device_new(void *, enum nv_bus_type type, u64 name,
-		     const char *sname, const char *cfg, const char *dbg,
-		     bool detect, bool mmio, u64 subdev_mask,
-		     struct nvkm_device **);
 void nvkm_device_del(struct nvkm_device **);
-int  nvkm_device_init(struct nvkm_device *);
-int  nvkm_device_fini(struct nvkm_device *, bool suspend);
 
 /* device logging */
 #define nvdev_printk_(d,l,p,f,a...) do {                                       \

drivers/gpu/drm/nouveau/include/nvkm/core/pci.h

+#ifndef __NVKM_DEVICE_PCI_H__
+#define __NVKM_DEVICE_PCI_H__
+#include <core/device.h>
+
+struct nvkm_device_pci {
+	struct nvkm_device device;
+	struct pci_dev *pdev;
+	bool suspend;
+};
+
+int nvkm_device_pci_new(struct pci_dev *, const char *cfg, const char *dbg,
+			bool detect, bool mmio, u64 subdev_mask,
+			struct nvkm_device **);
+#endif

drivers/gpu/drm/nouveau/include/nvkm/core/tegra.h

+#ifndef __NVKM_DEVICE_TEGRA_H__
+#define __NVKM_DEVICE_TEGRA_H__
+#include <core/device.h>
+
+struct nvkm_device_tegra {
+	struct nvkm_device device;
+	struct platform_device *pdev;
+};
+
+int nvkm_device_tegra_new(struct platform_device *,
+			  const char *cfg, const char *dbg,
+			  bool detect, bool mmio, u64 subdev_mask,
+			  struct nvkm_device **);
+#endif

drivers/gpu/drm/nouveau/nouveau_drm.c

@@ -32,9 +32,10 @@
 #include "drmP.h"
 #include "drm_crtc_helper.h"
 
-#include <core/device.h>
 #include <core/gpuobj.h>
 #include <core/option.h>
+#include <core/pci.h>
+#include <core/tegra.h>
 
 #include "nouveau_drm.h"
 #include "nouveau_dma.h"
@@ -326,9 +327,8 @@ static int nouveau_drm_probe(struct pci_dev *pdev,
 		remove_conflicting_framebuffers(aper, "nouveaufb", boot);
 	kfree(aper);
 
-	ret = nvkm_device_new(pdev, NVKM_BUS_PCI, nouveau_pci_name(pdev),
-			      pci_name(pdev), nouveau_config, nouveau_debug,
-			      true, true, ~0ULL, &device);
+	ret = nvkm_device_pci_new(pdev, nouveau_config, nouveau_debug,
+				  true, true, ~0ULL, &device);
 	if (ret)
 		return ret;
 
@@ -1036,11 +1036,8 @@ nouveau_platform_device_create(struct platform_device *pdev,
 	struct drm_device *drm;
 	int err;
 
-	err = nvkm_device_new(pdev, NVKM_BUS_PLATFORM,
-			      nouveau_platform_name(pdev),
-			      dev_name(&pdev->dev), nouveau_config,
-			      nouveau_debug, true, true, ~0ULL,
-			      pdevice);
+	err = nvkm_device_tegra_new(pdev, nouveau_config, nouveau_debug,
+				    true, true, ~0ULL, pdevice);
 	if (err)
 		goto err_free;
 

drivers/gpu/drm/nouveau/nvkm/engine/device/Kbuild

 nvkm-y += nvkm/engine/device/acpi.o
 nvkm-y += nvkm/engine/device/base.o
 nvkm-y += nvkm/engine/device/ctrl.o
+nvkm-y += nvkm/engine/device/pci.o
+nvkm-y += nvkm/engine/device/tegra.o
 nvkm-y += nvkm/engine/device/user.o
 
 nvkm-y += nvkm/engine/device/nv04.o

drivers/gpu/drm/nouveau/nvkm/engine/device/base.c

@@ -32,19 +32,25 @@
 static DEFINE_MUTEX(nv_devices_mutex);
 static LIST_HEAD(nv_devices);
 
-struct nvkm_device *
-nvkm_device_find(u64 name)
+static struct nvkm_device *
+nvkm_device_find_locked(u64 handle)
 {
-	struct nvkm_device *device, *match = NULL;
-	mutex_lock(&nv_devices_mutex);
+	struct nvkm_device *device;
 	list_for_each_entry(device, &nv_devices, head) {
-		if (device->handle == name) {
-			match = device;
-			break;
-		}
+		if (device->handle == handle)
+			return device;
 	}
+	return NULL;
+}
+
+struct nvkm_device *
+nvkm_device_find(u64 handle)
+{
+	struct nvkm_device *device;
+	mutex_lock(&nv_devices_mutex);
+	device = nvkm_device_find_locked(handle);
 	mutex_unlock(&nv_devices_mutex);
-	return match;
+	return device;
 }
 
 int
@@ -62,6 +68,7 @@ nvkm_device_list(u64 *name, int size)
 }
 
 #include <core/parent.h>
+#include <core/client.h>
 
 struct nvkm_device *
 nv_device(void *obj)
@@ -70,7 +77,8 @@ nv_device(void *obj)
 
 	if (device->engine == NULL) {
 		while (device && device->parent) {
-			if (nv_mclass(device) == 0x0080) {
+			if (!nv_iclass(device, NV_SUBDEV_CLASS) &&
+			    device->parent == &nvkm_client(device)->namedb.parent.object) {
 				struct {
 					struct nvkm_parent base;
 					struct nvkm_device *device;
@@ -125,6 +133,9 @@ nvkm_device_fini(struct nvkm_device *device, bool suspend)
 	}
 
 	ret = nvkm_acpi_fini(device, suspend);
+
+	if (device->func->fini)
+		device->func->fini(device, suspend);
 fail:
 	for (; ret && i < NVDEV_SUBDEV_NR; i++) {
 		if ((subdev = device->subdev[i])) {
@@ -140,12 +151,40 @@ nvkm_device_fini(struct nvkm_device *device, bool suspend)
 	return ret;
 }
 
+int
+nvkm_device_preinit(struct nvkm_device *device)
+{
+	int ret;
+	s64 time;
+
+	nvdev_trace(device, "preinit running...\n");
+	time = ktime_to_us(ktime_get());
+
+	if (device->func->preinit) {
+		ret = device->func->preinit(device);
+		if (ret)
+			goto fail;
+	}
+
+	time = ktime_to_us(ktime_get()) - time;
+	nvdev_trace(device, "preinit completed in %lldus\n", time);
+	return 0;
+
+fail:
+	nvdev_error(device, "preinit failed with %d\n", ret);
+	return ret;
+}
+
 int
 nvkm_device_init(struct nvkm_device *device)
 {
 	struct nvkm_object *subdev;
 	int ret, i = 0, c;
 
+	ret = nvkm_device_preinit(device);
+	if (ret)
+		return ret;
+
 	ret = nvkm_acpi_init(device);
 	if (ret)
 		goto fail;
@@ -287,12 +326,6 @@ nv_device_get_irq(struct nvkm_device *device, bool stall)
 	}
 }
 
-static struct nvkm_oclass
-nvkm_device_oclass = {
-	.ofuncs = &(struct nvkm_ofuncs) {
-	},
-};
-
 void
 nvkm_device_del(struct nvkm_device **pdevice)
 {
@@ -308,20 +341,28 @@ nvkm_device_del(struct nvkm_device **pdevice)
 		if (device->pri)
 			iounmap(device->pri);
 		list_del(&device->head);
+
+		if (device->func->dtor)
+			*pdevice = device->func->dtor(device);
 		mutex_unlock(&nv_devices_mutex);
 
-		nvkm_engine_destroy(&device->engine);
+		kfree(*pdevice);
 		*pdevice = NULL;
 	}
 }
 
+static const struct nvkm_engine_func
+nvkm_device_func = {
+};
+
 int
-nvkm_device_new(void *dev, enum nv_bus_type type, u64 name,
-		const char *sname, const char *cfg, const char *dbg,
-		bool detect, bool mmio, u64 subdev_mask,
-		struct nvkm_device **pdevice)
+nvkm_device_ctor(const struct nvkm_device_func *func,
+		 const struct nvkm_device_quirk *quirk,
+		 void *dev, enum nv_bus_type type, u64 handle,
+		 const char *name, const char *cfg, const char *dbg,
+		 bool detect, bool mmio, u64 subdev_mask,
+		 struct nvkm_device *device)
 {
-	struct nvkm_device *device;
 	u64 mmio_base, mmio_size;
 	u32 boot0, strap;
 	void __iomem *map;
@@ -329,17 +370,17 @@ nvkm_device_new(void *dev, enum nv_bus_type type, u64 name,
 	int i;
 
 	mutex_lock(&nv_devices_mutex);
-	list_for_each_entry(device, &nv_devices, head) {
-		if (device->handle == name)
-			goto done;
-	}
+	if (nvkm_device_find_locked(handle))
+		goto done;
 
-	ret = nvkm_engine_create(NULL, NULL, &nvkm_device_oclass, true,
-				 "DEVICE", "device", &device);
-	*pdevice = device;
+	ret = nvkm_engine_ctor(&nvkm_device_func, device, 0, 0,
+			       true, &device->engine);
+	device->engine.subdev.object.parent = NULL;
+	device->func = func;
 	if (ret)
 		goto done;
 
+	device->quirk = quirk;
 	switch (type) {
 	case NVKM_BUS_PCI:
 		device->pdev = dev;
@@ -350,12 +391,11 @@ nvkm_device_new(void *dev, enum nv_bus_type type, u64 name,
 		device->dev = &device->platformdev->dev;
 		break;
 	}
-	device->handle = name;
+	device->handle = handle;
 	device->cfgopt = cfg;
 	device->dbgopt = dbg;
-	device->name = sname;
+	device->name = name;
 
-	nv_subdev(device)->debug = nvkm_dbgopt(device->dbgopt, "DEVICE");
 	list_add_tail(&device->head, &nv_devices);
 
 	ret = nvkm_event_init(&nvkm_device_event_func, 1, 1, &device->event);

drivers/gpu/drm/nouveau/nvkm/engine/device/pci.c

+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include <core/pci.h>
+#include "priv.h"
+
+static struct nvkm_device_pci *
+nvkm_device_pci(struct nvkm_device *device)
+{
+	return container_of(device, struct nvkm_device_pci, device);
+}
+
+static void
+nvkm_device_pci_fini(struct nvkm_device *device, bool suspend)
+{
+	struct nvkm_device_pci *pdev = nvkm_device_pci(device);
+	if (suspend) {
+		pci_disable_device(pdev->pdev);
+		pdev->suspend = true;
+	}
+}
+
+static int
+nvkm_device_pci_preinit(struct nvkm_device *device)
+{
+	struct nvkm_device_pci *pdev = nvkm_device_pci(device);
+	if (pdev->suspend) {
+		int ret = pci_enable_device(pdev->pdev);
+		if (ret)
+			return ret;
+		pci_set_master(pdev->pdev);
+		pdev->suspend = false;
+	}
+	return 0;
+}
+
+static void *
+nvkm_device_pci_dtor(struct nvkm_device *device)
+{
+	struct nvkm_device_pci *pdev = nvkm_device_pci(device);
+	pci_disable_device(pdev->pdev);
+	return pdev;
+}
+
+static const struct nvkm_device_func
+nvkm_device_pci_func = {
+	.pci = nvkm_device_pci,
+	.dtor = nvkm_device_pci_dtor,
+	.preinit = nvkm_device_pci_preinit,
+	.fini = nvkm_device_pci_fini,
+};
+
+int
+nvkm_device_pci_new(struct pci_dev *pci_dev, const char *cfg, const char *dbg,
+		    bool detect, bool mmio, u64 subdev_mask,
+		    struct nvkm_device **pdevice)
+{
+	struct nvkm_device_pci *pdev;
+	int ret;
+
+	ret = pci_enable_device(pci_dev);
+	if (ret)
+		return ret;
+
+	if (!(pdev = kzalloc(sizeof(*pdev), GFP_KERNEL))) {
+		pci_disable_device(pci_dev);
+		return -ENOMEM;
+	}
+	*pdevice = &pdev->device;
+	pdev->pdev = pci_dev;
+
+	return nvkm_device_ctor(&nvkm_device_pci_func, NULL,
+				pci_dev, NVKM_BUS_PCI,
+				(u64)pci_domain_nr(pci_dev->bus) << 32 |
+				     pci_dev->bus->number << 16 |
+				     PCI_SLOT(pci_dev->devfn) << 8 |
+				     PCI_FUNC(pci_dev->devfn), NULL,
+				cfg, dbg, detect, mmio, subdev_mask,
+				&pdev->device);
+}

drivers/gpu/drm/nouveau/nvkm/engine/device/priv.h

@@ -2,6 +2,15 @@
 #define __NVKM_DEVICE_PRIV_H__
 #include <core/device.h>
 
+int  nvkm_device_ctor(const struct nvkm_device_func *,
+		      const struct nvkm_device_quirk *,
+		      void *, enum nv_bus_type type, u64 handle,
+		      const char *name, const char *cfg, const char *dbg,
+		      bool detect, bool mmio, u64 subdev_mask,
+		      struct nvkm_device *);
+int  nvkm_device_init(struct nvkm_device *);
+int  nvkm_device_fini(struct nvkm_device *, bool suspend);
+
 extern struct nvkm_oclass nvkm_control_oclass[];
 
 int nv04_identify(struct nvkm_device *);

drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c

+/*
+ * Copyright 2015 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs <bskeggs@redhat.com>
+ */
+#include <core/tegra.h>
+#ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
+#include "priv.h"
+
+static struct nvkm_device_tegra *
+nvkm_device_tegra(struct nvkm_device *obj)
+{
+	return container_of(obj, struct nvkm_device_tegra, device);
+}
+
+static const struct nvkm_device_func
+nvkm_device_tegra_func = {
+	.tegra = nvkm_device_tegra,
+};
+
+int
+nvkm_device_tegra_new(struct platform_device *pdev,
+		      const char *cfg, const char *dbg,
+		      bool detect, bool mmio, u64 subdev_mask,
+		      struct nvkm_device **pdevice)
+{
+	struct nvkm_device_tegra *tdev;
+
+	if (!(tdev = kzalloc(sizeof(*tdev), GFP_KERNEL)))
+		return -ENOMEM;
+	*pdevice = &tdev->device;
+	tdev->pdev = pdev;
+
+	return nvkm_device_ctor(&nvkm_device_tegra_func, NULL, pdev,
+				NVKM_BUS_PLATFORM, pdev->id, NULL,
+				cfg, dbg, detect, mmio, subdev_mask,
+				&tdev->device);
+}
+#else
+int
+nvkm_device_tegra_new(struct platform_device *pdev,
+		      const char *cfg, const char *dbg,
+		      bool detect, bool mmio, u64 subdev_mask,
+		      struct nvkm_device **pdevice)
+{
+	return -ENOSYS;
+}
+#endif