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authorEric Anholt <anholt@freebsd.org>2002-10-30 06:10:34 +0000
committerEric Anholt <anholt@freebsd.org>2002-10-30 06:10:34 +0000
commite656655a361acf73c5652fcef8cf6ba61dfe7a50 (patch)
tree96775fd22bd84a7030a114b108235ca07e12934c /shared-core
parent344c7f6b412c19c963c33709f0d4a3a7205e1d79 (diff)
Kernel support for vblank syncing on Rage 128 and Matrox.
Diffstat (limited to 'shared-core')
-rw-r--r--shared-core/mga_drm.h11
-rw-r--r--shared-core/mga_drv.h12
-rw-r--r--shared-core/mga_irq.c99
-rw-r--r--shared-core/mga_state.c33
-rw-r--r--shared-core/r128_drm.h11
-rw-r--r--shared-core/r128_drv.h6
-rw-r--r--shared-core/r128_irq.c99
-rw-r--r--shared-core/r128_state.c33
8 files changed, 304 insertions, 0 deletions
diff --git a/shared-core/mga_drm.h b/shared-core/mga_drm.h
index c259814d..b19bc011 100644
--- a/shared-core/mga_drm.h
+++ b/shared-core/mga_drm.h
@@ -239,6 +239,7 @@ typedef struct _drm_mga_sarea {
#define DRM_IOCTL_MGA_INDICES DRM_IOW( 0x46, drm_mga_indices_t)
#define DRM_IOCTL_MGA_ILOAD DRM_IOW( 0x47, drm_mga_iload_t)
#define DRM_IOCTL_MGA_BLIT DRM_IOW( 0x48, drm_mga_blit_t)
+#define DRM_IOCTL_MGA_GETPARAM DRM_IOWR(0x49, drm_mga_getparam_t)
typedef struct _drm_mga_warp_index {
int installed;
@@ -322,4 +323,14 @@ typedef struct _drm_mga_blit {
int source_pitch, dest_pitch;
} drm_mga_blit_t;
+/* 3.1: An ioctl to get parameters that aren't available to the 3d
+ * client any other way.
+ */
+#define MGA_PARAM_IRQ_NR 1
+
+typedef struct drm_mga_getparam {
+ int param;
+ int *value;
+} drm_mga_getparam_t;
+
#endif
diff --git a/shared-core/mga_drv.h b/shared-core/mga_drv.h
index b5f16ae2..a5085b06 100644
--- a/shared-core/mga_drv.h
+++ b/shared-core/mga_drv.h
@@ -125,6 +125,7 @@ extern int mga_dma_vertex( DRM_IOCTL_ARGS );
extern int mga_dma_indices( DRM_IOCTL_ARGS );
extern int mga_dma_iload( DRM_IOCTL_ARGS );
extern int mga_dma_blit( DRM_IOCTL_ARGS );
+extern int mga_getparam( DRM_IOCTL_ARGS );
/* mga_warp.c */
extern int mga_warp_install_microcode( drm_mga_private_t *dev_priv );
@@ -141,6 +142,7 @@ extern int mga_warp_init( drm_mga_private_t *dev_priv );
#ifdef __alpha__
#define MGA_READ( reg ) (_MGA_READ((u32 *)MGA_ADDR(reg)))
+#define MGA_READ8( reg ) (_MGA_READ((u8 *)MGA_ADDR(reg)))
#define MGA_WRITE( reg, val ) do { DRM_WRITEMEMORYBARRIER(); MGA_DEREF( reg ) = val; } while (0)
#define MGA_WRITE8( reg, val ) do { DRM_WRITEMEMORYBARRIER(); MGA_DEREF8( reg ) = val; } while (0)
@@ -152,6 +154,7 @@ static inline u32 _MGA_READ(u32 *addr)
#else
#define MGA_READ( reg ) MGA_DEREF( reg )
+#define MGA_READ8( reg ) MGA_DEREF8( reg )
#define MGA_WRITE( reg, val ) do { MGA_DEREF( reg ) = val; } while (0)
#define MGA_WRITE8( reg, val ) do { MGA_DEREF8( reg ) = val; } while (0)
#endif
@@ -345,6 +348,11 @@ do { \
/* A reduced set of the mga registers.
*/
#define MGA_CRTC_INDEX 0x1fd4
+#define MGA_CRTC_DATA 0x1fd5
+
+/* CRTC11 */
+#define MGA_VINTCLR (1 << 4)
+#define MGA_VINTEN (1 << 5)
#define MGA_ALPHACTRL 0x2c7c
#define MGA_AR0 0x1c60
@@ -416,8 +424,10 @@ do { \
#define MGA_ICLEAR 0x1e18
# define MGA_SOFTRAPICLR (1 << 0)
+# define MGA_VLINEICLR (1 << 5)
#define MGA_IEN 0x1e1c
# define MGA_SOFTRAPIEN (1 << 0)
+# define MGA_VLINEIEN (1 << 5)
#define MGA_LEN 0x1c5c
@@ -456,6 +466,8 @@ do { \
# define MGA_SRCACC_AGP (1 << 1)
#define MGA_STATUS 0x1e14
# define MGA_SOFTRAPEN (1 << 0)
+# define MGA_VSYNCPEN (1 << 4)
+# define MGA_VLINEPEN (1 << 5)
# define MGA_DWGENGSTS (1 << 16)
# define MGA_ENDPRDMASTS (1 << 17)
#define MGA_STENCIL 0x2cc8
diff --git a/shared-core/mga_irq.c b/shared-core/mga_irq.c
new file mode 100644
index 00000000..568d193f
--- /dev/null
+++ b/shared-core/mga_irq.c
@@ -0,0 +1,99 @@
+/* mga_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 "mga.h"
+#include "drmP.h"
+#include "drm.h"
+#include "mga_drm.h"
+#include "mga_drv.h"
+
+void mga_dma_service( DRM_IRQ_ARGS )
+{
+ drm_device_t *dev = (drm_device_t *) arg;
+ drm_mga_private_t *dev_priv =
+ (drm_mga_private_t *)dev->dev_private;
+ int status;
+
+ status = MGA_READ( MGA_STATUS );
+
+ /* VBLANK interrupt */
+ if ( status & MGA_VLINEPEN ) {
+ MGA_WRITE( MGA_ICLEAR, MGA_VLINEICLR );
+ atomic_inc(&dev->vbl_received);
+ DRM_WAKEUP(&dev->vbl_queue);
+ }
+}
+
+int mga_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 ) <= (1<<23) ) );
+
+ *sequence = cur_vblank;
+
+ return ret;
+}
+
+void mga_driver_irq_preinstall( drm_device_t *dev ) {
+ drm_mga_private_t *dev_priv =
+ (drm_mga_private_t *)dev->dev_private;
+
+ /* Disable *all* interrupts */
+ MGA_WRITE( MGA_IEN, 0 );
+ /* Clear bits if they're already high */
+ MGA_WRITE( MGA_ICLEAR, ~0 );
+}
+
+void mga_driver_irq_postinstall( drm_device_t *dev ) {
+ drm_mga_private_t *dev_priv =
+ (drm_mga_private_t *)dev->dev_private;
+
+ /* Turn on VBL interrupt */
+ MGA_WRITE( MGA_IEN, MGA_VLINEIEN );
+}
+
+void mga_driver_irq_uninstall( drm_device_t *dev ) {
+ drm_mga_private_t *dev_priv =
+ (drm_mga_private_t *)dev->dev_private;
+ if ( dev_priv ) {
+ /* Disable *all* interrupts */
+ MGA_WRITE( MGA_IEN, 0 );
+ }
+}
diff --git a/shared-core/mga_state.c b/shared-core/mga_state.c
index 26ea3e7f..61077220 100644
--- a/shared-core/mga_state.c
+++ b/shared-core/mga_state.c
@@ -1075,3 +1075,36 @@ int mga_dma_blit( DRM_IOCTL_ARGS )
return 0;
}
+
+int mga_getparam( DRM_IOCTL_ARGS )
+{
+ DRM_DEVICE;
+ drm_mga_private_t *dev_priv = dev->dev_private;
+ drm_mga_getparam_t param;
+ int value;
+
+ if ( !dev_priv ) {
+ DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
+ return DRM_ERR(EINVAL);
+ }
+
+ DRM_COPY_FROM_USER_IOCTL( param, (drm_mga_getparam_t *)data,
+ sizeof(param) );
+
+ DRM_DEBUG( "pid=%d\n", DRM_CURRENTPID );
+
+ switch( param.param ) {
+ case MGA_PARAM_IRQ_NR:
+ value = dev->irq;
+ break;
+ default:
+ return DRM_ERR(EINVAL);
+ }
+
+ if ( DRM_COPY_TO_USER( param.value, &value, sizeof(int) ) ) {
+ DRM_ERROR( "copy_to_user\n" );
+ return DRM_ERR(EFAULT);
+ }
+
+ return 0;
+}
diff --git a/shared-core/r128_drm.h b/shared-core/r128_drm.h
index a8d23008..bbb1a93b 100644
--- a/shared-core/r128_drm.h
+++ b/shared-core/r128_drm.h
@@ -190,6 +190,7 @@ typedef struct drm_r128_sarea {
#define DRM_IOCTL_R128_INDIRECT DRM_IOWR(0x4f, drm_r128_indirect_t)
#define DRM_IOCTL_R128_FULLSCREEN DRM_IOW( 0x50, drm_r128_fullscreen_t)
#define DRM_IOCTL_R128_CLEAR2 DRM_IOW( 0x51, drm_r128_clear2_t)
+#define DRM_IOCTL_R128_GETPARAM DRM_IOW( 0x52, drm_r128_getparam_t)
typedef struct drm_r128_init {
enum {
@@ -305,4 +306,14 @@ typedef struct drm_r128_fullscreen {
} func;
} drm_r128_fullscreen_t;
+/* 2.3: An ioctl to get parameters that aren't available to the 3d
+ * client any other way.
+ */
+#define R128_PARAM_IRQ_NR 1
+
+typedef struct drm_r128_getparam {
+ int param;
+ int *value;
+} drm_r128_getparam_t;
+
#endif
diff --git a/shared-core/r128_drv.h b/shared-core/r128_drv.h
index aeb73e08..763fcb3a 100644
--- a/shared-core/r128_drv.h
+++ b/shared-core/r128_drv.h
@@ -124,6 +124,7 @@ extern int r128_cce_idle( DRM_IOCTL_ARGS );
extern int r128_engine_reset( DRM_IOCTL_ARGS );
extern int r128_fullscreen( DRM_IOCTL_ARGS );
extern int r128_cce_buffers( DRM_IOCTL_ARGS );
+extern int r128_getparam( DRM_IOCTL_ARGS );
extern void r128_freelist_reset( drm_device_t *dev );
extern drm_buf_t *r128_freelist_get( drm_device_t *dev );
@@ -213,6 +214,11 @@ extern int r128_cce_indirect( DRM_IOCTL_ARGS );
#define R128_DST_PITCH_OFFSET_C 0x1c80
# define R128_DST_TILE (1 << 31)
+#define R128_GEN_INT_CNTL 0x0040
+# define R128_CRTC_VBLANK_INT_EN (1 << 0)
+#define R128_GEN_INT_STATUS 0x0044
+# define R128_CRTC_VBLANK_INT (1 << 0)
+# define R128_CRTC_VBLANK_INT_AK (1 << 0)
#define R128_GEN_RESET_CNTL 0x00f0
# define R128_SOFT_RESET_GUI (1 << 0)
diff --git a/shared-core/r128_irq.c b/shared-core/r128_irq.c
new file mode 100644
index 00000000..a29a81b5
--- /dev/null
+++ b/shared-core/r128_irq.c
@@ -0,0 +1,99 @@
+/* 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 "r128.h"
+#include "drmP.h"
+#include "drm.h"
+#include "r128_drm.h"
+#include "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);
+ }
+}
+
+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 ) <= (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 );
+ }
+}
diff --git a/shared-core/r128_state.c b/shared-core/r128_state.c
index 6ae58639..68f73061 100644
--- a/shared-core/r128_state.c
+++ b/shared-core/r128_state.c
@@ -1564,3 +1564,36 @@ int r128_cce_indirect( DRM_IOCTL_ARGS )
return 0;
}
+
+int r128_getparam( DRM_IOCTL_ARGS )
+{
+ DRM_DEVICE;
+ drm_r128_private_t *dev_priv = dev->dev_private;
+ drm_r128_getparam_t param;
+ int value;
+
+ if ( !dev_priv ) {
+ DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
+ return DRM_ERR(EINVAL);
+ }
+
+ DRM_COPY_FROM_USER_IOCTL( param, (drm_r128_getparam_t *)data,
+ sizeof(param) );
+
+ DRM_DEBUG( "pid=%d\n", DRM_CURRENTPID );
+
+ switch( param.param ) {
+ case R128_PARAM_IRQ_NR:
+ value = dev->irq;
+ break;
+ default:
+ return DRM_ERR(EINVAL);
+ }
+
+ if ( DRM_COPY_TO_USER( param.value, &value, sizeof(int) ) ) {
+ DRM_ERROR( "copy_to_user\n" );
+ return DRM_ERR(EFAULT);
+ }
+
+ return 0;
+}