drm/nouveau: implement module init functions in nouveau_drm.c

These currently just call the existing ones in nouveau_drv.c, but will be
extended in upcoming commits.  This needed to be separated from the current
code as there will be some header clashes until things are ported.

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

drivers/gpu/drm/nouveau/Makefile

@@ -80,7 +80,8 @@ nouveau-y += core/engine/mpeg/nv50.o
 nouveau-y += core/engine/ppp/nv98.o
 nouveau-y += core/engine/vp/nv84.o
 
-nouveau-y += nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
+nouveau-y += nouveau_drm.o \
+	     nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
              nouveau_gpuobj.o nouveau_irq.o nouveau_notifier.o \
              nouveau_sgdma.o nouveau_dma.o nouveau_util.o \
              nouveau_bo.o nouveau_fence.o nouveau_gem.o nouveau_ttm.o \

drivers/gpu/drm/nouveau/core/engine/graph/nv04.c

@@ -24,7 +24,7 @@
 
 #include "drmP.h"
 #include "drm.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 #include "nouveau_drv.h"
 #include "nouveau_hw.h"
 #include "nouveau_util.h"

drivers/gpu/drm/nouveau/core/engine/graph/nv10.c

@@ -24,7 +24,7 @@
 
 #include "drmP.h"
 #include "drm.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 #include "nouveau_drv.h"
 #include "nouveau_util.h"
 

drivers/gpu/drm/nouveau/core/engine/graph/nv20.c

@@ -1,7 +1,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 
 /*
  * NV20

drivers/gpu/drm/nouveau/core/subdev/fb/nv04.c

@@ -1,7 +1,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 
 int
 nv04_fb_vram_init(struct drm_device *dev)

drivers/gpu/drm/nouveau/core/subdev/fb/nv10.c

@@ -1,7 +1,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 
 void
 nv10_fb_init_tile_region(struct drm_device *dev, int i, uint32_t addr,

drivers/gpu/drm/nouveau/core/subdev/fb/nv20.c

@@ -1,7 +1,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 
 static struct drm_mm_node *
 nv20_fb_alloc_tag(struct drm_device *dev, uint32_t size)

drivers/gpu/drm/nouveau/core/subdev/fb/nv30.c

@@ -27,7 +27,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 
 void
 nv30_fb_init_tile_region(struct drm_device *dev, int i, uint32_t addr,

drivers/gpu/drm/nouveau/core/subdev/fb/nv40.c

@@ -1,7 +1,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 
 void
 nv40_fb_set_tile_region(struct drm_device *dev, int i)

drivers/gpu/drm/nouveau/core/subdev/fb/nv50.c

@@ -1,7 +1,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 #include <engine/fifo.h>
 
 struct nv50_fb_priv {

drivers/gpu/drm/nouveau/core/subdev/fb/nvc0.c

@@ -25,7 +25,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 
 struct nvc0_fb_priv {
 	struct page *r100c10_page;

drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c

@@ -1,7 +1,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 
 int
 nv04_mc_init(struct drm_device *dev)

drivers/gpu/drm/nouveau/core/subdev/mc/nv40.c

@@ -1,7 +1,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 
 int
 nv40_mc_init(struct drm_device *dev)

drivers/gpu/drm/nouveau/core/subdev/timer/nv04.c

@@ -1,7 +1,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 #include "nouveau_hw.h"
 
 int

drivers/gpu/drm/nouveau/nouveau_acpi.c

@@ -12,7 +12,7 @@
 #include "drm_sarea.h"
 #include "drm_crtc_helper.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 #include "nv50_display.h"
 #include "nouveau_connector.h"
 

drivers/gpu/drm/nouveau/nouveau_backlight.c

@@ -35,7 +35,7 @@
 
 #include "drmP.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 #include "nouveau_reg.h"
 #include "nouveau_encoder.h"
 

drivers/gpu/drm/nouveau/nouveau_bo.c

@@ -30,7 +30,7 @@
 #include "drmP.h"
 #include "ttm/ttm_page_alloc.h"
 
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 #include "nouveau_drv.h"
 #include "nouveau_dma.h"
 #include <core/mm.h>

drivers/gpu/drm/nouveau/nouveau_channel.c

@@ -25,7 +25,7 @@
 #include "drmP.h"
 #include "drm.h"
 #include "nouveau_drv.h"
-#include "nouveau_drm.h"
+#include <nouveau_drm.h>
 #include "nouveau_dma.h"
 #include <engine/fifo.h>
 #include <core/ramht.h>

drivers/gpu/drm/nouveau/nouveau_drm.c

@@ -0,0 +1,285 @@
+/*
+ * Copyright 2012 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
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include <core/device.h>
+#include <core/client.h>
+#include <core/class.h>
+
+#include <subdev/device.h>
+
+#include "nouveau_drm.h"
+
+int __devinit nouveau_pci_probe(struct pci_dev *, const struct pci_device_id *);
+void nouveau_pci_remove(struct pci_dev *);
+int nouveau_pci_suspend(struct pci_dev *, pm_message_t);
+int nouveau_pci_resume(struct pci_dev *);
+int __init nouveau_init(struct pci_driver *);
+void __exit nouveau_exit(struct pci_driver *);
+
+int nouveau_load(struct drm_device *, unsigned long);
+int nouveau_unload(struct drm_device *);
+void *nouveau_newpriv(struct drm_device *);
+
+MODULE_PARM_DESC(config, "option string to pass to driver core");
+static char *nouveau_config;
+module_param_named(config, nouveau_config, charp, 0400);
+
+MODULE_PARM_DESC(debug, "debug string to pass to driver core");
+static char *nouveau_debug;
+module_param_named(debug, nouveau_debug, charp, 0400);
+
+static u64
+nouveau_name(struct pci_dev *pdev)
+{
+	u64 name = (u64)pci_domain_nr(pdev->bus) << 32;
+	name |= pdev->bus->number << 16;
+	name |= PCI_SLOT(pdev->devfn) << 8;
+	return name | PCI_FUNC(pdev->devfn);
+}
+
+static int
+nouveau_cli_create(struct pci_dev *pdev, u32 name, int size, void **pcli)
+{
+	struct nouveau_cli *cli;
+	int ret;
+
+	ret = nouveau_client_create_(name, nouveau_name(pdev), nouveau_config,
+				     nouveau_debug, size, pcli);
+	cli = *pcli;
+	if (ret)
+		return ret;
+
+	mutex_init(&cli->mutex);
+	return 0;
+}
+
+static void
+nouveau_cli_destroy(struct nouveau_cli *cli)
+{
+	struct nouveau_object *client = nv_object(cli);
+	nouveau_client_fini(&cli->base, false);
+	atomic_set(&client->refcount, 1);
+	nouveau_object_ref(NULL, &client);
+}
+
+static int __devinit
+nouveau_drm_probe(struct pci_dev *pdev, const struct pci_device_id *pent)
+{
+	struct nouveau_device *device;
+	int ret;
+
+	ret = nouveau_device_create(pdev, nouveau_name(pdev), pci_name(pdev),
+				    nouveau_config, nouveau_debug, &device);
+	if (ret)
+		return ret;
+
+	pci_set_master(pdev);
+
+	ret = nouveau_pci_probe(pdev, pent);
+	if (ret) {
+		nouveau_device_destroy(&device);
+		return ret;
+	}
+
+	return 0;
+}
+
+int
+nouveau_drm_load(struct drm_device *dev, unsigned long flags)
+{
+	struct pci_dev *pdev = dev->pdev;
+	struct nouveau_drm *drm;
+	int ret;
+
+	ret = nouveau_cli_create(pdev, 0, sizeof(*drm), (void**)&drm);
+	dev->dev_private = drm;
+	if (ret)
+		return ret;
+
+	INIT_LIST_HEAD(&drm->clients);
+	drm->dev = dev;
+
+	ret = nouveau_object_new(nv_object(drm), NVDRM_CLIENT, NVDRM_DEVICE,
+				 0x0080, &(struct nv_device_class) {
+					.device = ~0,
+					.disable = 0,
+					.debug0 = 0,
+				 }, sizeof(struct nv_device_class),
+				 &drm->device);
+	if (ret)
+		goto fail_device;
+
+	ret = nouveau_load(dev, flags);
+	if (ret)
+		goto fail_device;
+
+	return 0;
+
+fail_device:
+	nouveau_cli_destroy(&drm->client);
+	return ret;
+}
+
+int
+nouveau_drm_unload(struct drm_device *dev)
+{
+	struct nouveau_drm *drm = nouveau_newpriv(dev);
+	struct pci_dev *pdev = dev->pdev;
+	int ret;
+
+	ret = nouveau_unload(dev);
+	if (ret)
+		return ret;
+
+	pci_set_drvdata(pdev, drm->client.base.device);
+	nouveau_cli_destroy(&drm->client);
+	return 0;
+}
+
+static void
+nouveau_drm_remove(struct pci_dev *pdev)
+{
+	struct nouveau_device *device;
+	nouveau_pci_remove(pdev);
+	device = pci_get_drvdata(pdev);
+	nouveau_device_destroy(&device);
+}
+
+int
+nouveau_drm_suspend(struct pci_dev *pdev, pm_message_t pm_state)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct nouveau_drm *drm = nouveau_newpriv(dev);
+	struct nouveau_cli *cli;
+	int ret;
+
+	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF ||
+	    pm_state.event == PM_EVENT_PRETHAW)
+		return 0;
+
+	ret = nouveau_pci_suspend(pdev, pm_state);
+	if (ret)
+		return ret;
+
+	list_for_each_entry(cli, &drm->clients, head) {
+		ret = nouveau_client_fini(&cli->base, true);
+		if (ret)
+			goto fail_client;
+	}
+
+	ret = nouveau_client_fini(&drm->client.base, true);
+	if (ret)
+		goto fail_client;
+
+	pci_save_state(pdev);
+	if (pm_state.event == PM_EVENT_SUSPEND) {
+		pci_disable_device(pdev);
+		pci_set_power_state(pdev, PCI_D3hot);
+	}
+
+	return 0;
+
+fail_client:
+	list_for_each_entry_continue_reverse(cli, &drm->clients, head) {
+		nouveau_client_init(&cli->base);
+	}
+
+	nouveau_pci_resume(pdev);
+	return ret;
+}
+
+int
+nouveau_drm_resume(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct nouveau_drm *drm = nouveau_newpriv(dev);
+	struct nouveau_cli *cli;
+	int ret;
+
+	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
+		return 0;
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+	ret = pci_enable_device(pdev);
+	if (ret)
+		return ret;
+	pci_set_master(pdev);
+
+	nouveau_client_init(&drm->client.base);
+
+	list_for_each_entry(cli, &drm->clients, head) {
+		nouveau_client_init(&cli->base);
+	}
+
+	return nouveau_pci_resume(pdev);
+}
+
+static struct pci_device_id
+nouveau_drm_pci_table[] = {
+	{
+		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID),
+		.class = PCI_BASE_CLASS_DISPLAY << 16,
+		.class_mask  = 0xff << 16,
+	},
+	{
+		PCI_DEVICE(PCI_VENDOR_ID_NVIDIA_SGS, PCI_ANY_ID),
+		.class = PCI_BASE_CLASS_DISPLAY << 16,
+		.class_mask  = 0xff << 16,
+	},
+	{}
+};
+
+static struct pci_driver
+nouveau_drm_pci_driver = {
+	.name = "nouveau",
+	.id_table = nouveau_drm_pci_table,
+	.probe = nouveau_drm_probe,
+	.remove = nouveau_drm_remove,
+	.suspend = nouveau_drm_suspend,
+	.resume = nouveau_drm_resume,
+};
+
+static int __init
+nouveau_drm_init(void)
+{
+	return nouveau_init(&nouveau_drm_pci_driver);
+}
+
+static void __exit
+nouveau_drm_exit(void)
+{
+	nouveau_exit(&nouveau_drm_pci_driver);
+}
+
+module_init(nouveau_drm_init);
+module_exit(nouveau_drm_exit);
+
+MODULE_DEVICE_TABLE(pci, nouveau_drm_pci_table);
+MODULE_AUTHOR("Nouveau Project");
+MODULE_DESCRIPTION("nVidia Riva/TNT/GeForce/Quadro/Tesla");
+MODULE_LICENSE("GPL and additional rights");

drivers/gpu/drm/nouveau/nouveau_drm.h

@@ -0,0 +1,47 @@
+#ifndef __NOUVEAU_DRMCLI_H__
+#define __NOUVEAU_DRMCLI_H__
+
+#include <core/client.h>
+
+#include <drmP.h>
+#include <drm/nouveau_drm.h>
+
+enum nouveau_drm_handle {
+	NVDRM_CLIENT = 0xffffffff,
+	NVDRM_DEVICE = 0xdddddddd,
+};
+
+struct nouveau_cli {
+	struct nouveau_client base;
+	struct list_head head;
+	struct mutex mutex;
+};
+
+struct nouveau_drm {
+	struct nouveau_cli client;
+	struct drm_device *dev;
+
+	struct nouveau_object *device;
+	struct list_head clients;
+};
+
+int nouveau_drm_suspend(struct pci_dev *, pm_message_t);
+int nouveau_drm_resume(struct pci_dev *);
+
+#define NV_PRINTK(level, code, drm, fmt, args...)                              \
+	printk(level "nouveau " code "[     DRM][%s] " fmt,                    \
+	       pci_name((drm)->dev->pdev), ##args)
+#define NV_FATAL(drm, fmt, args...)                                            \
+	NV_PRINTK(KERN_CRIT, "!", (drm), fmt, ##args)
+#define NV_ERROR(drm, fmt, args...)                                            \
+	NV_PRINTK(KERN_ERR, "E", (drm), fmt, ##args)
+#define NV_WARN(drm, fmt, args...)                                             \
+	NV_PRINTK(KERN_WARNING, "W", (drm), fmt, ##args)
+#define NV_INFO(drm, fmt, args...)                                             \
+	NV_PRINTK(KERN_INFO, " ", (drm), fmt, ##args)
+#define NV_DEBUG(drm, fmt, args...) do {                                       \
+	if (drm_debug & DRM_UT_DRIVER)                                         \
+		NV_PRINTK(KERN_DEBUG, "D", drm, fmt, ##args);                  \
+} while (0)
+
+#endif