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Diffstat (limited to 'nx-X11/extras/drm/shared/radeon_irq.c')
-rw-r--r--nx-X11/extras/drm/shared/radeon_irq.c258
1 files changed, 0 insertions, 258 deletions
diff --git a/nx-X11/extras/drm/shared/radeon_irq.c b/nx-X11/extras/drm/shared/radeon_irq.c
deleted file mode 100644
index bdb3cc168..000000000
--- a/nx-X11/extras/drm/shared/radeon_irq.c
+++ /dev/null
@@ -1,258 +0,0 @@
-/* radeon_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>
- * Michel Dänzer <michel@daenzer.net>
- */
-
-#include "radeon.h"
-#include "drmP.h"
-#include "drm.h"
-#include "radeon_drm.h"
-#include "radeon_drv.h"
-
-/* Interrupts - Used for device synchronization and flushing in the
- * following circumstances:
- *
- * - Exclusive FB access with hw idle:
- * - Wait for GUI Idle (?) interrupt, then do normal flush.
- *
- * - Frame throttling, NV_fence:
- * - Drop marker irq's into command stream ahead of time.
- * - Wait on irq's with lock *not held*
- * - Check each for termination condition
- *
- * - Internally in cp_getbuffer, etc:
- * - as above, but wait with lock held???
- *
- * NOTE: These functions are misleadingly named -- the irq's aren't
- * tied to dma at all, this is just a hangover from dri prehistory.
- */
-
-irqreturn_t radeon_driver_irq_handler( DRM_IRQ_ARGS )
-{
- drm_device_t *dev = (drm_device_t *) arg;
- drm_radeon_private_t *dev_priv =
- (drm_radeon_private_t *)dev->dev_private;
- u32 stat;
-
- /* Only consider the bits we're interested in - others could be used
- * outside the DRM
- */
- stat = RADEON_READ(RADEON_GEN_INT_STATUS)
- & (RADEON_SW_INT_TEST | RADEON_CRTC_VBLANK_STAT);
- if (!stat)
- return IRQ_NONE;
-
- /* SW interrupt */
- if (stat & RADEON_SW_INT_TEST) {
- DRM_WAKEUP( &dev_priv->swi_queue );
- }
-
- /* VBLANK interrupt */
- if (stat & RADEON_CRTC_VBLANK_STAT) {
- atomic_inc(&dev->vbl_received);
- DRM_WAKEUP(&dev->vbl_queue);
- DRM(vbl_send_signals)( dev );
- }
-
- /* Acknowledge interrupts we handle */
- RADEON_WRITE(RADEON_GEN_INT_STATUS, stat);
- return IRQ_HANDLED;
-}
-
-static __inline__ void radeon_acknowledge_irqs(drm_radeon_private_t *dev_priv)
-{
- u32 tmp = RADEON_READ( RADEON_GEN_INT_STATUS )
- & (RADEON_SW_INT_TEST_ACK | RADEON_CRTC_VBLANK_STAT);
- if (tmp)
- RADEON_WRITE( RADEON_GEN_INT_STATUS, tmp );
-}
-
-int radeon_emit_irq(drm_device_t *dev)
-{
- drm_radeon_private_t *dev_priv = dev->dev_private;
- unsigned int ret;
- RING_LOCALS;
-
- atomic_inc(&dev_priv->swi_emitted);
- ret = atomic_read(&dev_priv->swi_emitted);
-
- BEGIN_RING( 4 );
- OUT_RING_REG( RADEON_LAST_SWI_REG, ret );
- OUT_RING_REG( RADEON_GEN_INT_STATUS, RADEON_SW_INT_FIRE );
- ADVANCE_RING();
- COMMIT_RING();
-
- return ret;
-}
-
-
-int radeon_wait_irq(drm_device_t *dev, int swi_nr)
-{
- drm_radeon_private_t *dev_priv =
- (drm_radeon_private_t *)dev->dev_private;
- int ret = 0;
-
- if (RADEON_READ( RADEON_LAST_SWI_REG ) >= swi_nr)
- return 0;
-
- dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
-
- /* This is a hack to work around mysterious freezes on certain
- * systems:
- */
- radeon_acknowledge_irqs( dev_priv );
-
- DRM_WAIT_ON( ret, dev_priv->swi_queue, 3 * DRM_HZ,
- RADEON_READ( RADEON_LAST_SWI_REG ) >= swi_nr );
-
- return ret;
-}
-
-int radeon_emit_and_wait_irq(drm_device_t *dev)
-{
- return radeon_wait_irq( dev, radeon_emit_irq(dev) );
-}
-
-
-int radeon_driver_vblank_wait(drm_device_t *dev, unsigned int *sequence)
-{
- drm_radeon_private_t *dev_priv =
- (drm_radeon_private_t *)dev->dev_private;
- unsigned int cur_vblank;
- int ret = 0;
-
- if ( !dev_priv ) {
- DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
- return DRM_ERR(EINVAL);
- }
-
- radeon_acknowledge_irqs( dev_priv );
-
- dev_priv->stats.boxes |= RADEON_BOX_WAIT_IDLE;
-
- /* 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;
-}
-
-
-/* Needs the lock as it touches the ring.
- */
-int radeon_irq_emit( DRM_IOCTL_ARGS )
-{
- DRM_DEVICE;
- drm_radeon_private_t *dev_priv = dev->dev_private;
- drm_radeon_irq_emit_t emit;
- int result;
-
- LOCK_TEST_WITH_RETURN( dev, filp );
-
- if ( !dev_priv ) {
- DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
- return DRM_ERR(EINVAL);
- }
-
- DRM_COPY_FROM_USER_IOCTL( emit, (drm_radeon_irq_emit_t __user *)data,
- sizeof(emit) );
-
- result = radeon_emit_irq( dev );
-
- if ( DRM_COPY_TO_USER( emit.irq_seq, &result, sizeof(int) ) ) {
- DRM_ERROR( "copy_to_user\n" );
- return DRM_ERR(EFAULT);
- }
-
- return 0;
-}
-
-
-/* Doesn't need the hardware lock.
- */
-int radeon_irq_wait( DRM_IOCTL_ARGS )
-{
- DRM_DEVICE;
- drm_radeon_private_t *dev_priv = dev->dev_private;
- drm_radeon_irq_wait_t irqwait;
-
- if ( !dev_priv ) {
- DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
- return DRM_ERR(EINVAL);
- }
-
- DRM_COPY_FROM_USER_IOCTL( irqwait, (drm_radeon_irq_wait_t __user*)data,
- sizeof(irqwait) );
-
- return radeon_wait_irq( dev, irqwait.irq_seq );
-}
-
-
-/* drm_dma.h hooks
-*/
-void DRM(driver_irq_preinstall)( drm_device_t *dev ) {
- drm_radeon_private_t *dev_priv =
- (drm_radeon_private_t *)dev->dev_private;
-
- /* Disable *all* interrupts */
- RADEON_WRITE( RADEON_GEN_INT_CNTL, 0 );
-
- /* Clear bits if they're already high */
- radeon_acknowledge_irqs( dev_priv );
-}
-
-void DRM(driver_irq_postinstall)( drm_device_t *dev ) {
- drm_radeon_private_t *dev_priv =
- (drm_radeon_private_t *)dev->dev_private;
-
- atomic_set(&dev_priv->swi_emitted, 0);
- DRM_INIT_WAITQUEUE( &dev_priv->swi_queue );
-
- /* Turn on SW and VBL ints */
- RADEON_WRITE( RADEON_GEN_INT_CNTL,
- RADEON_CRTC_VBLANK_MASK |
- RADEON_SW_INT_ENABLE );
-}
-
-void DRM(driver_irq_uninstall)( drm_device_t *dev ) {
- drm_radeon_private_t *dev_priv =
- (drm_radeon_private_t *)dev->dev_private;
- if (!dev_priv)
- return;
-
- /* Disable *all* interrupts */
- RADEON_WRITE( RADEON_GEN_INT_CNTL, 0 );
-}