![Jesse Barnes](/assets/img/avatar_default.png)
As discussed in the long thread about vblank related timeouts, it turns out GM45 has different frame count registers than previous chips. This patch adds support for them, which prevents us from waiting on really stale sequence values in drm_wait_vblank (which rather than returning immediately ends up timing out or getting interrupted). Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@linux.ie>
197 lines
5.2 KiB
C
197 lines
5.2 KiB
C
/* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
|
|
*/
|
|
/*
|
|
*
|
|
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
|
|
* 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, sub license, 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 NON-INFRINGEMENT.
|
|
* IN NO EVENT SHALL TUNGSTEN GRAPHICS 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.
|
|
*
|
|
*/
|
|
|
|
#include "drmP.h"
|
|
#include "drm.h"
|
|
#include "i915_drm.h"
|
|
#include "i915_drv.h"
|
|
|
|
#include "drm_pciids.h"
|
|
#include <linux/console.h>
|
|
|
|
static unsigned int i915_modeset = -1;
|
|
module_param_named(modeset, i915_modeset, int, 0400);
|
|
|
|
unsigned int i915_fbpercrtc = 0;
|
|
module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
|
|
|
|
static struct pci_device_id pciidlist[] = {
|
|
i915_PCI_IDS
|
|
};
|
|
|
|
#if defined(CONFIG_DRM_I915_KMS)
|
|
MODULE_DEVICE_TABLE(pci, pciidlist);
|
|
#endif
|
|
|
|
static int i915_suspend(struct drm_device *dev, pm_message_t state)
|
|
{
|
|
struct drm_i915_private *dev_priv = dev->dev_private;
|
|
|
|
if (!dev || !dev_priv) {
|
|
printk(KERN_ERR "dev: %p, dev_priv: %p\n", dev, dev_priv);
|
|
printk(KERN_ERR "DRM not initialized, aborting suspend.\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
if (state.event == PM_EVENT_PRETHAW)
|
|
return 0;
|
|
|
|
pci_save_state(dev->pdev);
|
|
|
|
i915_save_state(dev);
|
|
|
|
intel_opregion_free(dev);
|
|
|
|
if (state.event == PM_EVENT_SUSPEND) {
|
|
/* Shut down the device */
|
|
pci_disable_device(dev->pdev);
|
|
pci_set_power_state(dev->pdev, PCI_D3hot);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int i915_resume(struct drm_device *dev)
|
|
{
|
|
pci_set_power_state(dev->pdev, PCI_D0);
|
|
pci_restore_state(dev->pdev);
|
|
if (pci_enable_device(dev->pdev))
|
|
return -1;
|
|
pci_set_master(dev->pdev);
|
|
|
|
i915_restore_state(dev);
|
|
|
|
intel_opregion_init(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct vm_operations_struct i915_gem_vm_ops = {
|
|
.fault = i915_gem_fault,
|
|
};
|
|
|
|
static struct drm_driver driver = {
|
|
/* don't use mtrr's here, the Xserver or user space app should
|
|
* deal with them for intel hardware.
|
|
*/
|
|
.driver_features =
|
|
DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
|
|
DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
|
|
.load = i915_driver_load,
|
|
.unload = i915_driver_unload,
|
|
.open = i915_driver_open,
|
|
.lastclose = i915_driver_lastclose,
|
|
.preclose = i915_driver_preclose,
|
|
.postclose = i915_driver_postclose,
|
|
.suspend = i915_suspend,
|
|
.resume = i915_resume,
|
|
.device_is_agp = i915_driver_device_is_agp,
|
|
.enable_vblank = i915_enable_vblank,
|
|
.disable_vblank = i915_disable_vblank,
|
|
.irq_preinstall = i915_driver_irq_preinstall,
|
|
.irq_postinstall = i915_driver_irq_postinstall,
|
|
.irq_uninstall = i915_driver_irq_uninstall,
|
|
.irq_handler = i915_driver_irq_handler,
|
|
.reclaim_buffers = drm_core_reclaim_buffers,
|
|
.get_map_ofs = drm_core_get_map_ofs,
|
|
.get_reg_ofs = drm_core_get_reg_ofs,
|
|
.master_create = i915_master_create,
|
|
.master_destroy = i915_master_destroy,
|
|
.proc_init = i915_gem_proc_init,
|
|
.proc_cleanup = i915_gem_proc_cleanup,
|
|
.gem_init_object = i915_gem_init_object,
|
|
.gem_free_object = i915_gem_free_object,
|
|
.gem_vm_ops = &i915_gem_vm_ops,
|
|
.ioctls = i915_ioctls,
|
|
.fops = {
|
|
.owner = THIS_MODULE,
|
|
.open = drm_open,
|
|
.release = drm_release,
|
|
.ioctl = drm_ioctl,
|
|
.mmap = drm_gem_mmap,
|
|
.poll = drm_poll,
|
|
.fasync = drm_fasync,
|
|
#ifdef CONFIG_COMPAT
|
|
.compat_ioctl = i915_compat_ioctl,
|
|
#endif
|
|
},
|
|
|
|
.pci_driver = {
|
|
.name = DRIVER_NAME,
|
|
.id_table = pciidlist,
|
|
},
|
|
|
|
.name = DRIVER_NAME,
|
|
.desc = DRIVER_DESC,
|
|
.date = DRIVER_DATE,
|
|
.major = DRIVER_MAJOR,
|
|
.minor = DRIVER_MINOR,
|
|
.patchlevel = DRIVER_PATCHLEVEL,
|
|
};
|
|
|
|
static int __init i915_init(void)
|
|
{
|
|
driver.num_ioctls = i915_max_ioctl;
|
|
|
|
/*
|
|
* If CONFIG_DRM_I915_KMS is set, default to KMS unless
|
|
* explicitly disabled with the module pararmeter.
|
|
*
|
|
* Otherwise, just follow the parameter (defaulting to off).
|
|
*
|
|
* Allow optional vga_text_mode_force boot option to override
|
|
* the default behavior.
|
|
*/
|
|
#if defined(CONFIG_DRM_I915_KMS)
|
|
if (i915_modeset != 0)
|
|
driver.driver_features |= DRIVER_MODESET;
|
|
#endif
|
|
if (i915_modeset == 1)
|
|
driver.driver_features |= DRIVER_MODESET;
|
|
|
|
#ifdef CONFIG_VGA_CONSOLE
|
|
if (vgacon_text_force() && i915_modeset == -1)
|
|
driver.driver_features &= ~DRIVER_MODESET;
|
|
#endif
|
|
|
|
return drm_init(&driver);
|
|
}
|
|
|
|
static void __exit i915_exit(void)
|
|
{
|
|
drm_exit(&driver);
|
|
}
|
|
|
|
module_init(i915_init);
|
|
module_exit(i915_exit);
|
|
|
|
MODULE_AUTHOR(DRIVER_AUTHOR);
|
|
MODULE_DESCRIPTION(DRIVER_DESC);
|
|
MODULE_LICENSE("GPL and additional rights");
|