renesas/kmsxx.git - kmsxx, cloned from https://github.com/tomba/kmsxx

Age	Commit message (Expand)	Author
2018-06-20	py: sync: Moded to blob conversion method is called to_blob()	Laurent Pinchart
2018-06-20	py: sync: Fix event handling	Laurent Pinchart
2017-09-05	py: drop the fancy event handling	Tomi Valkeinen
2017-04-21	py: Add in fence test using swsync	Laurent Pinchart

/* 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" u32 r128_get_vblank_counter(struct drm_device *dev, int crtc) { const drm_r128_private_t *dev_priv = dev->dev_private; if (crtc != 0) return 0; return atomic_read(&dev_priv->vbl_received); } 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_priv->vbl_received); drm_handle_vblank(dev, 0); return IRQ_HANDLED; } return IRQ_NONE; } int r128_enable_vblank(struct drm_device *dev, int crtc) { drm_r128_private_t *dev_priv = dev->dev_private; if (crtc != 0) { DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc); return -EINVAL; } R128_WRITE(R128_GEN_INT_CNTL, R128_CRTC_VBLANK_INT_EN); return 0; } void r128_disable_vblank(struct drm_device *dev, int crtc) { if (crtc != 0) DRM_ERROR("%s: bad crtc %d\n", __FUNCTION__, crtc); /* * FIXME: implement proper interrupt disable by using the vblank * counter register (if available) * * R128_WRITE(R128_GEN_INT_CNTL, * R128_READ(R128_GEN_INT_CNTL) & ~R128_CRTC_VBLANK_INT_EN); */ } 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); } int r128_driver_irq_postinstall(struct drm_device * dev) { return drm_vblank_init(dev, 1); } 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); }