1 files changed, 295 insertions, 0 deletions

diff --git a/kernel/drivers/gpu/drm/qxl/qxl_drv.c b/kernel/drivers/gpu/drm/qxl/qxl_drv.c
new file mode 100644
index 000000000..e2d07085b
--- /dev/null
+++ b/kernel/drivers/gpu/drm/qxl/qxl_drv.c
@@ -0,0 +1,295 @@
+/* vim: set ts=8 sw=8 tw=78 ai noexpandtab */
+/* qxl_drv.c -- QXL driver -*- linux-c -*-
+ *
+ * Copyright 2011 Red Hat, Inc.
+ * All Rights Reserved.
+ *
+ * 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 (including the next
+ * paragraph) 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
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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:
+ *    Dave Airlie <airlie@redhat.com>
+ *    Alon Levy <alevy@redhat.com>
+ */
+
+#include <linux/module.h>
+#include <linux/console.h>
+
+#include "drmP.h"
+#include "drm/drm.h"
+#include "drm_crtc_helper.h"
+#include "qxl_drv.h"
+#include "qxl_object.h"
+
+extern int qxl_max_ioctls;
+static const struct pci_device_id pciidlist[] = {
+	{ 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8,
+	  0xffff00, 0 },
+	{ 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8,
+	  0xffff00, 0 },
+	{ 0, 0, 0 },
+};
+MODULE_DEVICE_TABLE(pci, pciidlist);
+
+static int qxl_modeset = -1;
+int qxl_num_crtc = 4;
+
+MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
+module_param_named(modeset, qxl_modeset, int, 0400);
+
+MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)");
+module_param_named(num_heads, qxl_num_crtc, int, 0400);
+
+static struct drm_driver qxl_driver;
+static struct pci_driver qxl_pci_driver;
+
+static int
+qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	if (pdev->revision < 4) {
+		DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
+			  " use xf86-video-qxl in user mode");
+		return -EINVAL; /* TODO: ENODEV ? */
+	}
+	return drm_get_pci_dev(pdev, ent, &qxl_driver);
+}
+
+static void
+qxl_pci_remove(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+
+	drm_put_dev(dev);
+}
+
+static const struct file_operations qxl_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.poll = drm_poll,
+	.read = drm_read,
+	.mmap = qxl_mmap,
+};
+
+static int qxl_drm_freeze(struct drm_device *dev)
+{
+	struct pci_dev *pdev = dev->pdev;
+	struct qxl_device *qdev = dev->dev_private;
+	struct drm_crtc *crtc;
+
+	drm_kms_helper_poll_disable(dev);
+
+	console_lock();
+	qxl_fbdev_set_suspend(qdev, 1);
+	console_unlock();
+
+	/* unpin the front buffers */
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		const struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+		if (crtc->enabled)
+			(*crtc_funcs->disable)(crtc);
+	}
+
+	qxl_destroy_monitors_object(qdev);
+	qxl_surf_evict(qdev);
+	qxl_vram_evict(qdev);
+
+	while (!qxl_check_idle(qdev->command_ring));
+	while (!qxl_check_idle(qdev->release_ring))
+		qxl_queue_garbage_collect(qdev, 1);
+
+	pci_save_state(pdev);
+
+	return 0;
+}
+
+static int qxl_drm_resume(struct drm_device *dev, bool thaw)
+{
+	struct qxl_device *qdev = dev->dev_private;
+
+	qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
+	if (!thaw) {
+		qxl_reinit_memslots(qdev);
+		qxl_ring_init_hdr(qdev->release_ring);
+	}
+
+	qxl_create_monitors_object(qdev);
+	drm_helper_resume_force_mode(dev);
+
+	console_lock();
+	qxl_fbdev_set_suspend(qdev, 0);
+	console_unlock();
+
+	drm_kms_helper_poll_enable(dev);
+	return 0;
+}
+
+static int qxl_pm_suspend(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct drm_device *drm_dev = pci_get_drvdata(pdev);
+	int error;
+
+	error = qxl_drm_freeze(drm_dev);
+	if (error)
+		return error;
+
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, PCI_D3hot);
+	return 0;
+}
+
+static int qxl_pm_resume(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct drm_device *drm_dev = pci_get_drvdata(pdev);
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+	if (pci_enable_device(pdev)) {
+		return -EIO;
+	}
+
+	return qxl_drm_resume(drm_dev, false);
+}
+
+static int qxl_pm_thaw(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct drm_device *drm_dev = pci_get_drvdata(pdev);
+
+	return qxl_drm_resume(drm_dev, true);
+}
+
+static int qxl_pm_freeze(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct drm_device *drm_dev = pci_get_drvdata(pdev);
+
+	return qxl_drm_freeze(drm_dev);
+}
+
+static int qxl_pm_restore(struct device *dev)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct drm_device *drm_dev = pci_get_drvdata(pdev);
+	struct qxl_device *qdev = drm_dev->dev_private;
+
+	qxl_io_reset(qdev);
+	return qxl_drm_resume(drm_dev, false);
+}
+
+static u32 qxl_noop_get_vblank_counter(struct drm_device *dev, int crtc)
+{
+	return dev->vblank[crtc].count.counter;
+}
+
+static int qxl_noop_enable_vblank(struct drm_device *dev, int crtc)
+{
+	return 0;
+}
+
+static void qxl_noop_disable_vblank(struct drm_device *dev, int crtc)
+{
+}
+
+static const struct dev_pm_ops qxl_pm_ops = {
+	.suspend = qxl_pm_suspend,
+	.resume = qxl_pm_resume,
+	.freeze = qxl_pm_freeze,
+	.thaw = qxl_pm_thaw,
+	.poweroff = qxl_pm_freeze,
+	.restore = qxl_pm_restore,
+};
+static struct pci_driver qxl_pci_driver = {
+	 .name = DRIVER_NAME,
+	 .id_table = pciidlist,
+	 .probe = qxl_pci_probe,
+	 .remove = qxl_pci_remove,
+	 .driver.pm = &qxl_pm_ops,
+};
+
+static struct drm_driver qxl_driver = {
+	.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
+			   DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
+	.load = qxl_driver_load,
+	.unload = qxl_driver_unload,
+	.get_vblank_counter = qxl_noop_get_vblank_counter,
+	.enable_vblank = qxl_noop_enable_vblank,
+	.disable_vblank = qxl_noop_disable_vblank,
+
+	.set_busid = drm_pci_set_busid,
+
+	.dumb_create = qxl_mode_dumb_create,
+	.dumb_map_offset = qxl_mode_dumb_mmap,
+	.dumb_destroy = drm_gem_dumb_destroy,
+#if defined(CONFIG_DEBUG_FS)
+	.debugfs_init = qxl_debugfs_init,
+	.debugfs_cleanup = qxl_debugfs_takedown,
+#endif
+	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
+	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
+	.gem_prime_export = drm_gem_prime_export,
+	.gem_prime_import = drm_gem_prime_import,
+	.gem_prime_pin = qxl_gem_prime_pin,
+	.gem_prime_unpin = qxl_gem_prime_unpin,
+	.gem_prime_get_sg_table = qxl_gem_prime_get_sg_table,
+	.gem_prime_import_sg_table = qxl_gem_prime_import_sg_table,
+	.gem_prime_vmap = qxl_gem_prime_vmap,
+	.gem_prime_vunmap = qxl_gem_prime_vunmap,
+	.gem_prime_mmap = qxl_gem_prime_mmap,
+	.gem_free_object = qxl_gem_object_free,
+	.gem_open_object = qxl_gem_object_open,
+	.gem_close_object = qxl_gem_object_close,
+	.fops = &qxl_fops,
+	.ioctls = qxl_ioctls,
+	.irq_handler = qxl_irq_handler,
+	.name = DRIVER_NAME,
+	.desc = DRIVER_DESC,
+	.date = DRIVER_DATE,
+	.major = 0,
+	.minor = 1,
+	.patchlevel = 0,
+};
+
+static int __init qxl_init(void)
+{
+#ifdef CONFIG_VGA_CONSOLE
+	if (vgacon_text_force() && qxl_modeset == -1)
+		return -EINVAL;
+#endif
+
+	if (qxl_modeset == 0)
+		return -EINVAL;
+	qxl_driver.num_ioctls = qxl_max_ioctls;
+	return drm_pci_init(&qxl_driver, &qxl_pci_driver);
+}
+
+static void __exit qxl_exit(void)
+{
+	drm_pci_exit(&qxl_driver, &qxl_pci_driver);
+}
+
+module_init(qxl_init);
+module_exit(qxl_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL and additional rights");