/* 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 <[email protected]>
* Alon Levy <[email protected]>
*/
#include "qxl_drv.h"
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/vgaarb.h>
#include <drm/drm.h>
#include <drm/drm_aperture.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_drv.h>
#include <drm/drm_fbdev_ttm.h>
#include <drm/drm_file.h>
#include <drm/drm_gem_ttm_helper.h>
#include <drm/drm_module.h>
#include <drm/drm_modeset_helper.h>
#include <drm/drm_prime.h>
#include <drm/drm_probe_helper.h>
#include "qxl_object.h"
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)
{
struct qxl_device *qdev;
int ret;
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 ? */
}
qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
struct qxl_device, ddev);
if (IS_ERR(qdev)) {
pr_err("Unable to init drm dev");
return -ENOMEM;
}
ret = pci_enable_device(pdev);
if (ret)
return ret;
ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &qxl_driver);
if (ret)
goto disable_pci;
if (pci_is_vga(pdev) && pdev->revision < 5) {
ret = vga_get_interruptible(pdev, VGA_RSRC_LEGACY_IO);
if (ret) {
DRM_ERROR("can't get legacy vga ioports\n");
goto disable_pci;
}
}
ret = qxl_device_init(qdev, pdev);
if (ret)
goto put_vga;
ret = qxl_modeset_init(qdev);
if (ret)
goto unload;
drm_kms_helper_poll_init(&qdev->ddev);
/* Complete initialization. */
ret = drm_dev_register(&qdev->ddev, ent->driver_data);
if (ret)
goto modeset_cleanup;
drm_fbdev_ttm_setup(&qdev->ddev, 32);
return 0;
modeset_cleanup:
qxl_modeset_fini(qdev);
unload:
qxl_device_fini(qdev);
put_vga:
if (pci_is_vga(pdev) && pdev->revision < 5)
vga_put(pdev, VGA_RSRC_LEGACY_IO);
disable_pci:
pci_disable_device(pdev);
return ret;
}
static void qxl_drm_release(struct drm_device *dev)
{
struct qxl_device *qdev = to_qxl(dev);
/*
* TODO: qxl_device_fini() call should be in qxl_pci_remove(),
* reordering qxl_modeset_fini() + qxl_device_fini() calls is
* non-trivial though.
*/
qxl_modeset_fini(qdev);
qxl_device_fini(qdev);
}
static void
qxl_pci_remove(struct pci_dev *pdev)
{
struct drm_device *dev = pci_get_drvdata(pdev);
drm_dev_unregister(dev);
drm_atomic_helper_shutdown(dev);
if (pci_is_vga(pdev) && pdev->revision < 5)
vga_put(pdev, VGA_RSRC_LEGACY_IO);
}
static void
qxl_pci_shutdown(struct pci_dev *pdev)
{
drm_atomic_helper_shutdown(pci_get_drvdata(pdev));
}
DEFINE_DRM_GEM_FOPS(qxl_fops);
static int qxl_drm_freeze(struct drm_device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev->dev);
struct qxl_device *qdev = to_qxl(dev);
int ret;
ret = drm_mode_config_helper_suspend(dev);
if (ret)
return ret;
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 = to_qxl(dev);
qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
if (!thaw) {
qxl_reinit_memslots(qdev);
}
qxl_create_monitors_object(qdev);
return drm_mode_config_helper_resume(dev);
}
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);
struct qxl_device *qdev = to_qxl(drm_dev);
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
if (pci_enable_device(pdev)) {
return -EIO;
}
qxl_io_reset(qdev);
return qxl_drm_resume(drm_dev, false);
}
static int qxl_pm_thaw(struct device *dev)
{
struct drm_device *drm_dev = dev_get_drvdata(dev);
return qxl_drm_resume(drm_dev, true);
}
static int qxl_pm_freeze(struct device *dev)
{
struct drm_device *drm_dev = dev_get_drvdata(dev);
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 = to_qxl(drm_dev);
qxl_io_reset(qdev);
return qxl_drm_resume(drm_dev, false);
}
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,
.shutdown = qxl_pci_shutdown,
.driver.pm = &qxl_pm_ops,
};
static const struct drm_ioctl_desc qxl_ioctls[] = {
DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH),
DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH),
DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl, DRM_AUTH),
DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl, DRM_AUTH),
DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl, DRM_AUTH),
DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl, DRM_AUTH),
DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl, DRM_AUTH),
};
static struct drm_driver qxl_driver = {
.driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC | DRIVER_CURSOR_HOTSPOT,
.dumb_create = qxl_mode_dumb_create,
.dumb_map_offset = drm_gem_ttm_dumb_map_offset,
#if defined(CONFIG_DEBUG_FS)
.debugfs_init = qxl_debugfs_init,
#endif
.gem_prime_import_sg_table = qxl_gem_prime_import_sg_table,
.fops = &qxl_fops,
.ioctls = qxl_ioctls,
.num_ioctls = ARRAY_SIZE(qxl_ioctls),
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,
.major = 0,
.minor = 1,
.patchlevel = 0,
.release = qxl_drm_release,
};
drm_module_pci_driver_if_modeset(qxl_pci_driver, qxl_modeset);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL and additional rights");
Codebase Browser
linux