forked from Minki/linux
1ff494813b
This is only used by drm_irq_install(), which is an optional helper. For legacy pci devices this is required (due to interrupt sharing without msi/msi-x), and just making this the default exactly matches the behaviour of all existing drivers using the drm_irq_install() helpers. In case that ever becomes wrong drivers can roll their own irq handling, as many drivers already do (for other reasons like needing a threaded interrupt handler, or having an entire pile of different interrupt sources). v2: Rebase v3: Improve commit message (Emil) Cc: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190129104248.26607-3-daniel.vetter@ffwll.ch
112 lines
3.4 KiB
C
112 lines
3.4 KiB
C
/* r128_drv.c -- ATI Rage 128 driver -*- linux-c -*-
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* Created: Mon Dec 13 09:47:27 1999 by faith@precisioninsight.com
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*
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* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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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 "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Rickard E. (Rik) Faith <faith@valinux.com>
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* Gareth Hughes <gareth@valinux.com>
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*/
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#include <linux/module.h>
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#include <drm/drmP.h>
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#include <drm/r128_drm.h>
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#include "r128_drv.h"
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#include <drm/drm_pciids.h>
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static struct pci_device_id pciidlist[] = {
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r128_PCI_IDS
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};
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static const struct file_operations r128_driver_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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.unlocked_ioctl = drm_ioctl,
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.mmap = drm_legacy_mmap,
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.poll = drm_poll,
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#ifdef CONFIG_COMPAT
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.compat_ioctl = r128_compat_ioctl,
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#endif
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.llseek = noop_llseek,
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};
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static struct drm_driver driver = {
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.driver_features =
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DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_SG | DRIVER_LEGACY |
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DRIVER_HAVE_DMA | DRIVER_HAVE_IRQ,
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.dev_priv_size = sizeof(drm_r128_buf_priv_t),
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.load = r128_driver_load,
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.preclose = r128_driver_preclose,
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.lastclose = r128_driver_lastclose,
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.get_vblank_counter = r128_get_vblank_counter,
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.enable_vblank = r128_enable_vblank,
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.disable_vblank = r128_disable_vblank,
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.irq_preinstall = r128_driver_irq_preinstall,
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.irq_postinstall = r128_driver_irq_postinstall,
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.irq_uninstall = r128_driver_irq_uninstall,
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.irq_handler = r128_driver_irq_handler,
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.ioctls = r128_ioctls,
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.dma_ioctl = r128_cce_buffers,
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.fops = &r128_driver_fops,
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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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int r128_driver_load(struct drm_device *dev, unsigned long flags)
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{
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pci_set_master(dev->pdev);
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return drm_vblank_init(dev, 1);
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}
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static struct pci_driver r128_pci_driver = {
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.name = DRIVER_NAME,
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.id_table = pciidlist,
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};
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static int __init r128_init(void)
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{
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driver.num_ioctls = r128_max_ioctl;
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return drm_legacy_pci_init(&driver, &r128_pci_driver);
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}
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static void __exit r128_exit(void)
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{
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drm_legacy_pci_exit(&driver, &r128_pci_driver);
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}
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module_init(r128_init);
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module_exit(r128_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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