673a394b1e
GEM allows the creation of persistent buffer objects accessible by the graphics device through new ioctls for managing execution of commands on the device. The userland API is almost entirely driver-specific to ensure that any driver building on this model can easily map the interface to individual driver requirements. GEM is used by the 2d driver for managing its internal state allocations and will be used for pixmap storage to reduce memory consumption and enable zero-copy GLX_EXT_texture_from_pixmap, and in the 3d driver is used to enable GL_EXT_framebuffer_object and GL_ARB_pixel_buffer_object. Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>
158 lines
4.2 KiB
C
158 lines
4.2 KiB
C
/* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
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*/
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/*
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*
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* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "drmP.h"
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#include "drm.h"
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#include "i915_drm.h"
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#include "i915_drv.h"
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#include "drm_pciids.h"
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static struct pci_device_id pciidlist[] = {
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i915_PCI_IDS
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};
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static int i915_suspend(struct drm_device *dev, pm_message_t state)
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{
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struct drm_i915_private *dev_priv = dev->dev_private;
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if (!dev || !dev_priv) {
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printk(KERN_ERR "dev: %p, dev_priv: %p\n", dev, dev_priv);
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printk(KERN_ERR "DRM not initialized, aborting suspend.\n");
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return -ENODEV;
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}
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if (state.event == PM_EVENT_PRETHAW)
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return 0;
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pci_save_state(dev->pdev);
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i915_save_state(dev);
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intel_opregion_free(dev);
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if (state.event == PM_EVENT_SUSPEND) {
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/* Shut down the device */
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pci_disable_device(dev->pdev);
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pci_set_power_state(dev->pdev, PCI_D3hot);
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}
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return 0;
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}
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static int i915_resume(struct drm_device *dev)
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{
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pci_set_power_state(dev->pdev, PCI_D0);
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pci_restore_state(dev->pdev);
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if (pci_enable_device(dev->pdev))
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return -1;
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pci_set_master(dev->pdev);
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i915_restore_state(dev);
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intel_opregion_init(dev);
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return 0;
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}
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static struct drm_driver driver = {
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/* don't use mtrr's here, the Xserver or user space app should
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* deal with them for intel hardware.
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*/
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.driver_features =
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DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
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DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
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.load = i915_driver_load,
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.unload = i915_driver_unload,
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.open = i915_driver_open,
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.lastclose = i915_driver_lastclose,
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.preclose = i915_driver_preclose,
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.postclose = i915_driver_postclose,
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.suspend = i915_suspend,
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.resume = i915_resume,
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.device_is_agp = i915_driver_device_is_agp,
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.get_vblank_counter = i915_get_vblank_counter,
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.enable_vblank = i915_enable_vblank,
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.disable_vblank = i915_disable_vblank,
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.irq_preinstall = i915_driver_irq_preinstall,
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.irq_postinstall = i915_driver_irq_postinstall,
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.irq_uninstall = i915_driver_irq_uninstall,
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.irq_handler = i915_driver_irq_handler,
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.reclaim_buffers = drm_core_reclaim_buffers,
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.get_map_ofs = drm_core_get_map_ofs,
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.get_reg_ofs = drm_core_get_reg_ofs,
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.proc_init = i915_gem_proc_init,
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.proc_cleanup = i915_gem_proc_cleanup,
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.gem_init_object = i915_gem_init_object,
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.gem_free_object = i915_gem_free_object,
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.ioctls = i915_ioctls,
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.fops = {
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.owner = THIS_MODULE,
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.open = drm_open,
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.release = drm_release,
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.ioctl = drm_ioctl,
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.mmap = drm_mmap,
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.poll = drm_poll,
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.fasync = drm_fasync,
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#ifdef CONFIG_COMPAT
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.compat_ioctl = i915_compat_ioctl,
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#endif
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},
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.pci_driver = {
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.name = DRIVER_NAME,
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.id_table = pciidlist,
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},
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.name = DRIVER_NAME,
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.desc = DRIVER_DESC,
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.date = DRIVER_DATE,
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.major = DRIVER_MAJOR,
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.minor = DRIVER_MINOR,
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.patchlevel = DRIVER_PATCHLEVEL,
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};
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static int __init i915_init(void)
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{
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driver.num_ioctls = i915_max_ioctl;
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return drm_init(&driver);
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}
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static void __exit i915_exit(void)
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{
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drm_exit(&driver);
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}
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module_init(i915_init);
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module_exit(i915_exit);
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL and additional rights");
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