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author | anholt <anholt@FreeBSD.org> | 2003-03-09 02:08:30 +0000 |
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committer | anholt <anholt@FreeBSD.org> | 2003-03-09 02:08:30 +0000 |
commit | ccdf4ef2d9288d035e56820efb0e79db6acf5ba8 (patch) | |
tree | ef9d3b03548e9f28bd5c265be746871660c0c16a /sys/dev/drm/r128_irq.c | |
parent | 0b60094f80a8137660b368df0b80fb0179b92d04 (diff) | |
download | FreeBSD-src-ccdf4ef2d9288d035e56820efb0e79db6acf5ba8.zip FreeBSD-src-ccdf4ef2d9288d035e56820efb0e79db6acf5ba8.tar.gz |
Update the DRM to latest from DRI CVS. This is approximately the version
included in XFree86 4.3, but includes some fixes. Notable changes include
Radeon 8500-9100 support, PCI Radeon/Rage 128 support, transform & lighting
support for Radeons, and vblank syncing support for r128, radeon, and mga.
The gamma driver was removed due to lack of any users.
Diffstat (limited to 'sys/dev/drm/r128_irq.c')
-rw-r--r-- | sys/dev/drm/r128_irq.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/sys/dev/drm/r128_irq.c b/sys/dev/drm/r128_irq.c new file mode 100644 index 0000000..5fb8f22 --- /dev/null +++ b/sys/dev/drm/r128_irq.c @@ -0,0 +1,102 @@ +/* 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> + * + * $FreeBSD$ + */ + +#include "dev/drm/r128.h" +#include "dev/drm/drmP.h" +#include "dev/drm/drm.h" +#include "dev/drm/r128_drm.h" +#include "dev/drm/r128_drv.h" + +void r128_dma_service( DRM_IRQ_ARGS ) +{ + drm_device_t *dev = (drm_device_t *) 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 ); + } +} + +int DRM(vblank_wait)(drm_device_t *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( drm_device_t *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( drm_device_t *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( drm_device_t *dev ) { + drm_r128_private_t *dev_priv = + (drm_r128_private_t *)dev->dev_private; + if ( dev_priv ) { + /* Disable *all* interrupts */ + R128_WRITE( R128_GEN_INT_CNTL, 0 ); + } +} |