| mga_irq.c (112015) | mga_irq.c (119098) |
|---|---|
| 1/* mga_irq.c -- IRQ handling for radeon -*- linux-c -*- 2 * 3 * Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. 4 * 5 * The Weather Channel (TM) funded Tungsten Graphics to develop the 6 * initial release of the Radeon 8500 driver under the XFree86 license. 7 * This notice must be preserved. 8 * --- 15 unchanged lines hidden (view full) --- 24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 26 * DEALINGS IN THE SOFTWARE. 27 * 28 * Authors: 29 * Keith Whitwell <keith@tungstengraphics.com> 30 * Eric Anholt <anholt@FreeBSD.org> 31 * | 1/* mga_irq.c -- IRQ handling for radeon -*- linux-c -*- 2 * 3 * Copyright (C) The Weather Channel, Inc. 2002. All Rights Reserved. 4 * 5 * The Weather Channel (TM) funded Tungsten Graphics to develop the 6 * initial release of the Radeon 8500 driver under the XFree86 license. 7 * This notice must be preserved. 8 * --- 15 unchanged lines hidden (view full) --- 24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 26 * DEALINGS IN THE SOFTWARE. 27 * 28 * Authors: 29 * Keith Whitwell <keith@tungstengraphics.com> 30 * Eric Anholt <anholt@FreeBSD.org> 31 * |
| 32 * $FreeBSD: head/sys/dev/drm/mga_irq.c 112015 2003-03-09 02:08:30Z anholt $ | 32 * $FreeBSD: head/sys/dev/drm/mga_irq.c 119098 2003-08-19 02:57:31Z anholt $ |
| 33 */ 34 35#include "dev/drm/mga.h" 36#include "dev/drm/drmP.h" 37#include "dev/drm/drm.h" 38#include "dev/drm/mga_drm.h" 39#include "dev/drm/mga_drv.h" 40 | 33 */ 34 35#include "dev/drm/mga.h" 36#include "dev/drm/drmP.h" 37#include "dev/drm/drm.h" 38#include "dev/drm/mga_drm.h" 39#include "dev/drm/mga_drv.h" 40 |
| 41void mga_dma_service( DRM_IRQ_ARGS ) | 41irqreturn_t mga_dma_service( DRM_IRQ_ARGS ) |
| 42{ 43 drm_device_t *dev = (drm_device_t *) arg; 44 drm_mga_private_t *dev_priv = 45 (drm_mga_private_t *)dev->dev_private; 46 int status; 47 48 status = MGA_READ( MGA_STATUS ); 49 50 /* VBLANK interrupt */ 51 if ( status & MGA_VLINEPEN ) { 52 MGA_WRITE( MGA_ICLEAR, MGA_VLINEICLR ); 53 atomic_inc(&dev->vbl_received); 54 DRM_WAKEUP(&dev->vbl_queue); 55 DRM(vbl_send_signals)( dev ); | 42{ 43 drm_device_t *dev = (drm_device_t *) arg; 44 drm_mga_private_t *dev_priv = 45 (drm_mga_private_t *)dev->dev_private; 46 int status; 47 48 status = MGA_READ( MGA_STATUS ); 49 50 /* VBLANK interrupt */ 51 if ( status & MGA_VLINEPEN ) { 52 MGA_WRITE( MGA_ICLEAR, MGA_VLINEICLR ); 53 atomic_inc(&dev->vbl_received); 54 DRM_WAKEUP(&dev->vbl_queue); 55 DRM(vbl_send_signals)( dev ); |
| 56 return IRQ_HANDLED; |
|
| 56 } | 57 } |
| 58 return IRQ_NONE; |
|
| 57} 58 59int mga_vblank_wait(drm_device_t *dev, unsigned int *sequence) 60{ 61 unsigned int cur_vblank; 62 int ret = 0; 63 64 /* Assume that the user has missed the current sequence number --- 25 unchanged lines hidden (view full) --- 90 91 /* Turn on VBL interrupt */ 92 MGA_WRITE( MGA_IEN, MGA_VLINEIEN ); 93} 94 95void mga_driver_irq_uninstall( drm_device_t *dev ) { 96 drm_mga_private_t *dev_priv = 97 (drm_mga_private_t *)dev->dev_private; | 59} 60 61int mga_vblank_wait(drm_device_t *dev, unsigned int *sequence) 62{ 63 unsigned int cur_vblank; 64 int ret = 0; 65 66 /* Assume that the user has missed the current sequence number --- 25 unchanged lines hidden (view full) --- 92 93 /* Turn on VBL interrupt */ 94 MGA_WRITE( MGA_IEN, MGA_VLINEIEN ); 95} 96 97void mga_driver_irq_uninstall( drm_device_t *dev ) { 98 drm_mga_private_t *dev_priv = 99 (drm_mga_private_t *)dev->dev_private; |
| 98 if ( dev_priv ) { 99 /* Disable *all* interrupts */ 100 MGA_WRITE( MGA_IEN, 0 ); 101 } | 100 if (!dev_priv) 101 return; 102 103 /* Disable *all* interrupts */ 104 MGA_WRITE( MGA_IEN, 0 ); |
| 102} | 105} |