drm/radeon: Inline drm_get_pci_dev

It's the last user, and more importantly, it's the last non-legacy
user of anything in drm_pci.c.

The only tricky bit is the agp initialization. But a close look shows
that radeon does not use the drm_agp midlayer (the main use of that is
drm_bufs for legacy drivers), and instead could use the agp subsystem
directly (like nouveau does already). Hence we can just pull this in
too.

A further step would be to entirely drop the use of drm_device->agp,
but feels like too much churn just for this patch.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

drivers/gpu/drm/radeon/radeon_drv.c

@@ -37,6 +37,7 @@
 #include <linux/vga_switcheroo.h>
 #include <linux/mmu_notifier.h>
 
+#include <drm/drm_agpsupport.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_drv.h>
 #include <drm/drm_fb_helper.h>
@@ -325,6 +326,7 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *ent)
 {
 	unsigned long flags = 0;
+	struct drm_device *dev;
 	int ret;
 
 	if (!ent)
@@ -365,7 +367,44 @@ static int radeon_pci_probe(struct pci_dev *pdev,
 	if (ret)
 		return ret;
 
-	return drm_get_pci_dev(pdev, ent, &kms_driver);
+	dev = drm_dev_alloc(&kms_driver, &pdev->dev);
+	if (IS_ERR(dev))
+		return PTR_ERR(dev);
+
+	ret = pci_enable_device(pdev);
+	if (ret)
+		goto err_free;
+
+	dev->pdev = pdev;
+#ifdef __alpha__
+	dev->hose = pdev->sysdata;
+#endif
+
+	pci_set_drvdata(pdev, dev);
+
+	if (pci_find_capability(dev->pdev, PCI_CAP_ID_AGP))
+		dev->agp = drm_agp_init(dev);
+	if (dev->agp) {
+		dev->agp->agp_mtrr = arch_phys_wc_add(
+			dev->agp->agp_info.aper_base,
+			dev->agp->agp_info.aper_size *
+			1024 * 1024);
+	}
+
+	ret = drm_dev_register(dev, ent->driver_data);
+	if (ret)
+		goto err_agp;
+
+	return 0;
+
+err_agp:
+	if (dev->agp)
+		arch_phys_wc_del(dev->agp->agp_mtrr);
+	kfree(dev->agp);
+	pci_disable_device(pdev);
+err_free:
+	drm_dev_put(dev);
+	return ret;
 }
 
 static void
@@ -575,7 +614,7 @@ radeon_get_crtc_scanout_position(struct drm_device *dev, unsigned int pipe,
 
 static struct drm_driver kms_driver = {
 	.driver_features =
-	    DRIVER_USE_AGP | DRIVER_GEM | DRIVER_RENDER,
+	    DRIVER_GEM | DRIVER_RENDER,
 	.load = radeon_driver_load_kms,
 	.open = radeon_driver_open_kms,
 	.postclose = radeon_driver_postclose_kms,

drivers/gpu/drm/radeon/radeon_kms.c

@@ -32,6 +32,7 @@
 #include <linux/uaccess.h>
 #include <linux/vga_switcheroo.h>
 
+#include <drm/drm_agpsupport.h>
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_file.h>
 #include <drm/drm_ioctl.h>
@@ -77,6 +78,11 @@ void radeon_driver_unload_kms(struct drm_device *dev)
 	radeon_modeset_fini(rdev);
 	radeon_device_fini(rdev);
 
+	if (dev->agp)
+		arch_phys_wc_del(dev->agp->agp_mtrr);
+	kfree(dev->agp);
+	dev->agp = NULL;
+
 done_free:
 	kfree(rdev);
 	dev->dev_private = NULL;