diff options
Diffstat (limited to 'drivers/char/drm/r128_irq.c')
| -rw-r--r-- | drivers/char/drm/r128_irq.c | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/drivers/char/drm/r128_irq.c b/drivers/char/drm/r128_irq.c deleted file mode 100644 index c76fdca..0000000 --- a/drivers/char/drm/r128_irq.c +++ /dev/null @@ -1,101 +0,0 @@ -/* r128_irq.c -- IRQ handling for radeon -*- linux-c -*- */ -/* - * Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. - * - * The Weather Channel (TM) funded Tungsten Graphics to develop the - * initial release of the Radeon 8500 driver under the XFree86 license. - * This notice must be preserved. - * - * 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 - * PRECISION INSIGHT 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: - * Keith Whitwell <keith@tungstengraphics.com> - * Eric Anholt <anholt@FreeBSD.org> - */ - -#include "drmP.h" -#include "drm.h" -#include "r128_drm.h" -#include "r128_drv.h" - -irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) -{ - struct drm_device *dev = (struct drm_device *) arg; - drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; - int status; - - status = R128_READ(R128_GEN_INT_STATUS); - - /* VBLANK interrupt */ - if (status & R128_CRTC_VBLANK_INT) { - R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK); - atomic_inc(&dev->vbl_received); - DRM_WAKEUP(&dev->vbl_queue); - drm_vbl_send_signals(dev); - return IRQ_HANDLED; - } - return IRQ_NONE; -} - -int r128_driver_vblank_wait(struct drm_device * dev, unsigned int *sequence) -{ - unsigned int cur_vblank; - int ret = 0; - - /* Assume that the user has missed the current sequence number - * by about a day rather than she wants to wait for years - * using vertical blanks... - */ - DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ, - (((cur_vblank = atomic_read(&dev->vbl_received)) - - *sequence) <= (1 << 23))); - - *sequence = cur_vblank; - - return ret; -} - -void r128_driver_irq_preinstall(struct drm_device * dev) -{ - drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; - - /* Disable *all* interrupts */ - R128_WRITE(R128_GEN_INT_CNTL, 0); - /* Clear vblank bit if it's already high */ - R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK); -} - -void r128_driver_irq_postinstall(struct drm_device * dev) -{ - drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; - - /* Turn on VBL interrupt */ - R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN); -} - -void r128_driver_irq_uninstall(struct drm_device * dev) -{ - drm_r128_private_t *dev_priv = (drm_r128_private_t *) dev->dev_private; - if (!dev_priv) - return; - - /* Disable *all* interrupts */ - R128_WRITE(R128_GEN_INT_CNTL, 0); -} |
