summaryrefslogtreecommitdiff
path: root/bsd
diff options
context:
space:
mode:
authorEric Anholt <anholt@freebsd.org>2002-09-26 07:45:07 +0000
committerEric Anholt <anholt@freebsd.org>2002-09-26 07:45:07 +0000
commit97961e2c65773328fe9c2e1d66e4a0b8a253d54d (patch)
tree3b81fbbe9ebef5f2398964df7dc392c73646add1 /bsd
parent770d045d25728be51534b930afdfa36f3ffddbfc (diff)
BSD vblank framework.
Diffstat (limited to 'bsd')
-rw-r--r--bsd/drm.h14
-rw-r--r--bsd/drmP.h10
-rw-r--r--bsd/drm_dma.h59
-rw-r--r--bsd/drm_drv.h4
-rw-r--r--bsd/drm_os_freebsd.h3
-rw-r--r--bsd/gamma.h22
-rw-r--r--bsd/gamma_dma.c42
7 files changed, 129 insertions, 25 deletions
diff --git a/bsd/drm.h b/bsd/drm.h
index 376568e0..f45f088e 100644
--- a/bsd/drm.h
+++ b/bsd/drm.h
@@ -345,6 +345,18 @@ typedef struct drm_irq_busid {
int funcnum;
} drm_irq_busid_t;
+typedef enum {
+ _DRM_VBLANK_ABSOLUTE = 0x0, /* Wait for specific vblank sequence number */
+ _DRM_VBLANK_RELATIVE = 0x1 /* Wait for given number of vblanks */
+} drm_vblank_seq_type_t;
+
+typedef struct drm_radeon_vbl_wait {
+ drm_vblank_seq_type_t type;
+ unsigned int sequence;
+ long tval_sec;
+ long tval_usec;
+} drm_wait_vblank_t;
+
typedef struct drm_agp_mode {
unsigned long mode;
} drm_agp_mode_t;
@@ -439,6 +451,8 @@ typedef struct drm_scatter_gather {
#define DRM_IOCTL_SG_ALLOC DRM_IOW( 0x38, drm_scatter_gather_t)
#define DRM_IOCTL_SG_FREE DRM_IOW( 0x39, drm_scatter_gather_t)
+#define DRM_IOCTL_WAIT_VBLANK DRM_IOWR(0x3a, drm_wait_vblank_t)
+
/* Device specfic ioctls should only be in their respective headers
* The device specific ioctl range is 0x40 to 0x79. */
#define DRM_COMMAND_BASE 0x40
diff --git a/bsd/drmP.h b/bsd/drmP.h
index f323e8ef..1adaa0e5 100644
--- a/bsd/drmP.h
+++ b/bsd/drmP.h
@@ -465,6 +465,10 @@ struct drm_device {
#if __FreeBSD_version >= 400005
struct task task;
#endif
+#if __HAVE_VBL_IRQ
+ wait_queue_head_t vbl_queue; /* vbl wait channel */
+ atomic_t vbl_received;
+#endif
cycles_t ctx_start;
cycles_t lck_start;
#if __HAVE_DMA_HISTOGRAM
@@ -579,6 +583,9 @@ extern int DRM(dma_get_buffers)(drm_device_t *dev, drm_dma_t *dma);
extern int DRM(irq_install)( drm_device_t *dev, int irq );
extern int DRM(irq_uninstall)( drm_device_t *dev );
extern void DRM(dma_service)( DRM_IRQ_ARGS );
+extern void DRM(driver_irq_preinstall)( drm_device_t *dev );
+extern void DRM(driver_irq_postinstall)( drm_device_t *dev );
+extern void DRM(driver_irq_uninstall)( drm_device_t *dev );
#if __HAVE_DMA_IRQ_BH
extern void DRM(dma_immediate_bh)( DRM_TASKQUEUE_ARGS );
#endif
@@ -603,6 +610,9 @@ extern int DRM(freelist_put)(drm_device_t *dev, drm_freelist_t *bl,
extern drm_buf_t *DRM(freelist_get)(drm_freelist_t *bl, int block);
#endif
#endif /* __HAVE_DMA */
+#if __HAVE_VBL_IRQ
+extern int DRM(vblank_wait)(drm_device_t *dev, unsigned int *vbl_seq);
+#endif
#if __REALLY_HAVE_AGP
/* AGP/GART support (drm_agpsupport.h) */
diff --git a/bsd/drm_dma.h b/bsd/drm_dma.h
index 3e4a5e17..ebb6fbf6 100644
--- a/bsd/drm_dma.h
+++ b/bsd/drm_dma.h
@@ -532,7 +532,7 @@ int DRM(irq_install)( drm_device_t *dev, int irq )
#endif
/* Before installing handler */
- DRIVER_PREINSTALL();
+ DRM(driver_irq_preinstall)( dev );
/* Install handler */
rid = 0;
@@ -552,7 +552,7 @@ int DRM(irq_install)( drm_device_t *dev, int irq )
}
/* After installing handler */
- DRIVER_POSTINSTALL();
+ DRM(driver_irq_postinstall)( dev );
return 0;
}
@@ -571,7 +571,7 @@ int DRM(irq_uninstall)( drm_device_t *dev )
DRM_DEBUG( "%s: irq=%d\n", __FUNCTION__, irq );
- DRIVER_UNINSTALL();
+ DRM(driver_irq_uninstall)( dev );
bus_teardown_intr(dev->device, dev->irqr, dev->irqh);
bus_release_resource(dev->device, SYS_RES_IRQ, 0, dev->irqr);
@@ -596,6 +596,58 @@ int DRM(control)( DRM_IOCTL_ARGS )
}
}
+#if __HAVE_VBL_IRQ
+
+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 :)
+ */
+ while ( ( ( cur_vblank = atomic_read(&dev->vbl_received ) )
+ + ~*sequence + 1 ) > (1<<23) ) {
+ ret = tsleep( &dev->vbl_queue, 3*hz, "rdnvbl", PZERO | PCATCH);
+ if (ret)
+ break;
+ }
+
+ *sequence = cur_vblank;
+
+ return ret;
+}
+
+int DRM(wait_vblank)( DRM_IOCTL_ARGS )
+{
+ DRM_DEVICE;
+ drm_wait_vblank_t vblwait;
+ struct timeval now;
+ int ret;
+
+ if (!dev->irq)
+ return DRM_ERR(EINVAL);
+
+ DRM_COPY_FROM_USER_IOCTL( vblwait, (drm_wait_vblank_t *)data,
+ sizeof(vblwait) );
+
+ if ( vblwait.type == _DRM_VBLANK_RELATIVE ) {
+ vblwait.sequence += atomic_read( &dev->vbl_received );
+ }
+
+ ret = DRM(vblank_wait)( dev, &vblwait.sequence );
+
+ microtime( &now );
+ vblwait.tval_sec = now.tv_sec;
+ vblwait.tval_usec = now.tv_usec;
+
+ DRM_COPY_TO_USER_IOCTL( (drm_wait_vblank_t *)data, vblwait,
+ sizeof(vblwait) );
+
+ return ret;
+}
+#endif /* __HAVE_VBL_IRQ */
+
#else
int DRM(control)( DRM_IOCTL_ARGS )
@@ -616,3 +668,4 @@ int DRM(control)( DRM_IOCTL_ARGS )
#endif /* __HAVE_DMA_IRQ */
#endif /* __HAVE_DMA */
+
diff --git a/bsd/drm_drv.h b/bsd/drm_drv.h
index 0b880047..872f6bc6 100644
--- a/bsd/drm_drv.h
+++ b/bsd/drm_drv.h
@@ -217,6 +217,10 @@ static drm_ioctl_desc_t DRM(ioctls)[] = {
[DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = { DRM(sg_free), 1, 1 },
#endif
+#if __HAVE_VBL_IRQ
+ [DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = { DRM(wait_vblank), 0, 0 },
+#endif
+
DRIVER_IOCTLS
};
diff --git a/bsd/drm_os_freebsd.h b/bsd/drm_os_freebsd.h
index fa0c916f..70ca60a6 100644
--- a/bsd/drm_os_freebsd.h
+++ b/bsd/drm_os_freebsd.h
@@ -407,6 +407,9 @@ extern int DRM(mem_info) DRM_SYSCTL_HANDLER_ARGS;
#if __HAVE_DMA
extern d_ioctl_t DRM(control);
#endif
+#if __HAVE_VBL_IRQ
+extern d_ioctl_t DRM(wait_vblank);
+#endif
/* AGP/GART support (drm_agpsupport.h) */
#if __REALLY_HAVE_AGP
diff --git a/bsd/gamma.h b/bsd/gamma.h
index 232ed018..161dc048 100644
--- a/bsd/gamma.h
+++ b/bsd/gamma.h
@@ -67,27 +67,5 @@
#define __HAVE_DMA_IRQ 1
#define __HAVE_DMA_IRQ_BH 1
-#define DRIVER_PREINSTALL() do { \
- drm_gamma_private_t *dev_priv = \
- (drm_gamma_private_t *)dev->dev_private;\
- GAMMA_WRITE( GAMMA_GCOMMANDMODE, 0x00000000 ); \
- GAMMA_WRITE( GAMMA_GDMACONTROL, 0x00000000 ); \
-} while (0)
-
-#define DRIVER_POSTINSTALL() do { \
- drm_gamma_private_t *dev_priv = \
- (drm_gamma_private_t *)dev->dev_private;\
- GAMMA_WRITE( GAMMA_GINTENABLE, 0x00002001 ); \
- GAMMA_WRITE( GAMMA_COMMANDINTENABLE, 0x00000008 ); \
- GAMMA_WRITE( GAMMA_GDELAYTIMER, 0x00039090 ); \
-} while (0)
-
-#define DRIVER_UNINSTALL() do { \
- drm_gamma_private_t *dev_priv = \
- (drm_gamma_private_t *)dev->dev_private;\
- GAMMA_WRITE( GAMMA_GDELAYTIMER, 0x00000000 ); \
- GAMMA_WRITE( GAMMA_COMMANDINTENABLE, 0x00000000 ); \
- GAMMA_WRITE( GAMMA_GINTENABLE, 0x00000000 ); \
-} while (0)
#endif /* __GAMMA_H__ */
diff --git a/bsd/gamma_dma.c b/bsd/gamma_dma.c
index 20b29793..714554d2 100644
--- a/bsd/gamma_dma.c
+++ b/bsd/gamma_dma.c
@@ -567,3 +567,45 @@ int gamma_dma( DRM_IOCTL_ARGS )
return retcode;
}
+
+void DRM(driver_irq_preinstall)(drm_device_t *dev) {
+ drm_gamma_private_t *dev_priv =
+ (drm_gamma_private_t *)dev->dev_private;
+#if 1
+ while(GAMMA_READ(GAMMA_INFIFOSPACE) < 2);
+ GAMMA_WRITE( GAMMA_GCOMMANDMODE, 0x00000004 );
+ GAMMA_WRITE( GAMMA_GDMACONTROL, 0x00000000 );
+#else
+ while(GAMMA_READ(GAMMA_INFIFOSPACE) < 2);
+ while(GAMMA_READ(GAMMA_INFIFOSPACE) < 2);
+ GAMMA_WRITE( GAMMA_GCOMMANDMODE, GAMMA_QUEUED_DMA_MODE );
+ GAMMA_WRITE( GAMMA_GDMACONTROL, 0x00000000 );
+#endif
+}
+
+void DRM(driver_irq_postinstall)(drm_device_t *dev) {
+ drm_gamma_private_t *dev_priv =
+ (drm_gamma_private_t *)dev->dev_private;
+#if 1
+ while(GAMMA_READ(GAMMA_INFIFOSPACE) < 2);
+ while(GAMMA_READ(GAMMA_INFIFOSPACE) < 3);
+ GAMMA_WRITE( GAMMA_GINTENABLE, 0x00002001 );
+ GAMMA_WRITE( GAMMA_COMMANDINTENABLE, 0x00000008 );
+ GAMMA_WRITE( GAMMA_GDELAYTIMER, 0x00039090 );
+#else
+ while(GAMMA_READ(GAMMA_INFIFOSPACE) < 2);
+ while(GAMMA_READ(GAMMA_INFIFOSPACE) < 2);
+ GAMMA_WRITE( GAMMA_GINTENABLE, 0x00002000 );
+ GAMMA_WRITE( GAMMA_COMMANDINTENABLE, 0x00000004 );
+#endif
+}
+
+void DRM(driver_irq_uninstall)( drm_device_t *dev ) {
+ drm_gamma_private_t *dev_priv =
+ (drm_gamma_private_t *)dev->dev_private;
+ while(GAMMA_READ(GAMMA_INFIFOSPACE) < 2);
+ while(GAMMA_READ(GAMMA_INFIFOSPACE) < 3);
+ GAMMA_WRITE( GAMMA_GDELAYTIMER, 0x00000000 );
+ GAMMA_WRITE( GAMMA_COMMANDINTENABLE, 0x00000000 );
+ GAMMA_WRITE( GAMMA_GINTENABLE, 0x00000000 );
+}