drm: update to i915 1.3.0

Add support for vblank ioctls to i915 driver

From: Dave Airlie <airlied@linux.ie>
Signed-off-by: Dave Airlie <airlied@linux.ie>

drivers/char/drm/i915_dma.c

 /* i915_dma.c -- DMA support for the I915 -*- linux-c -*-
  */
-/**************************************************************************
- *
+/*
  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
  *
@@ -25,7 +24,7 @@
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
- **************************************************************************/
+ */
 
 #include "drmP.h"
 #include "drm.h"
@@ -196,7 +195,7 @@ static int i915_initialize(drm_device_t * dev,
 	return 0;
 }
 
-static int i915_resume(drm_device_t * dev)
+static int i915_dma_resume(drm_device_t * dev)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
@@ -253,7 +252,7 @@ static int i915_dma_init(DRM_IOCTL_ARGS)
 		retcode = i915_dma_cleanup(dev);
 		break;
 	case I915_RESUME_DMA:
-		retcode = i915_resume(dev);
+		retcode = i915_dma_resume(dev);
 		break;
 	default:
 		retcode = -EINVAL;
@@ -654,6 +653,9 @@ static int i915_getparam(DRM_IOCTL_ARGS)
 	case I915_PARAM_ALLOW_BATCHBUFFER:
 		value = dev_priv->allow_batchbuffer ? 1 : 0;
 		break;
+	case I915_PARAM_LAST_DISPATCH:
+		value = READ_BREADCRUMB(dev_priv);
+		break;
 	default:
 		DRM_ERROR("Unkown parameter %d\n", param.param);
 		return DRM_ERR(EINVAL);

drivers/char/drm/i915_drm.h

-/**************************************************************************
- *
+/*
  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
  *
@@ -23,7 +22,7 @@
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
- **************************************************************************/
+ */
 
 #ifndef _I915_DRM_H_
 #define _I915_DRM_H_
@@ -152,6 +151,7 @@ typedef struct drm_i915_irq_wait {
  */
 #define I915_PARAM_IRQ_ACTIVE            1
 #define I915_PARAM_ALLOW_BATCHBUFFER     2
+#define I915_PARAM_LAST_DISPATCH         3
 
 typedef struct drm_i915_getparam {
 	int param;

drivers/char/drm/i915_drv.c

 /* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
  */
-/**************************************************************************
+/*
  *
  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
@@ -25,7 +25,7 @@
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
- **************************************************************************/
+ */
 
 #include "drmP.h"
 #include "drm.h"
@@ -44,11 +44,12 @@ static struct drm_driver driver = {
 	 */
 	.driver_features =
 	    DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
-	    DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
+	    DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_IRQ_VBL,
 	.load = i915_driver_load,
 	.lastclose = i915_driver_lastclose,
 	.preclose = i915_driver_preclose,
 	.device_is_agp = i915_driver_device_is_agp,
+	.vblank_wait = i915_driver_vblank_wait,
 	.irq_preinstall = i915_driver_irq_preinstall,
 	.irq_postinstall = i915_driver_irq_postinstall,
 	.irq_uninstall = i915_driver_irq_uninstall,

drivers/char/drm/i915_drv.h

 /* i915_drv.h -- Private header for the I915 driver -*- linux-c -*-
  */
-/**************************************************************************
+/*
  *
  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
@@ -25,7 +25,7 @@
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
- **************************************************************************/
+ */
 
 #ifndef _I915_DRV_H_
 #define _I915_DRV_H_
@@ -37,21 +37,18 @@
 
 #define DRIVER_NAME		"i915"
 #define DRIVER_DESC		"Intel Graphics"
-#define DRIVER_DATE		"20040405"
+#define DRIVER_DATE		"20051209"
 
 /* Interface history:
  *
  * 1.1: Original.
+ * 1.2: Add Power Management
+ * 1.3: Add vblank support
  */
 #define DRIVER_MAJOR		1
-#define DRIVER_MINOR		1
+#define DRIVER_MINOR		3
 #define DRIVER_PATCHLEVEL	0
 
-/* We use our own dma mechanisms, not the drm template code.  However,
- * the shared IRQ code is useful to us:
- */
-#define __HAVE_PM		1
-
 typedef struct _drm_i915_ring_buffer {
 	int tail_mask;
 	unsigned long Start;
@@ -97,6 +94,7 @@ typedef struct drm_i915_private {
 	int tex_lru_log_granularity;
 	int allow_batchbuffer;
 	struct mem_block *agp_heap;
+	unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
 } drm_i915_private_t;
 
 extern drm_ioctl_desc_t i915_ioctls[];
@@ -108,11 +106,14 @@ extern int i915_driver_load(struct drm_device *, unsigned long flags);
 extern void i915_driver_lastclose(drm_device_t * dev);
 extern void i915_driver_preclose(drm_device_t * dev, DRMFILE filp);
 extern int i915_driver_device_is_agp(drm_device_t * dev);
+extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
+			      unsigned long arg);
 
 /* i915_irq.c */
 extern int i915_irq_emit(DRM_IOCTL_ARGS);
 extern int i915_irq_wait(DRM_IOCTL_ARGS);
 
+extern int i915_driver_vblank_wait(drm_device_t *dev, unsigned int *sequence);
 extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
 extern void i915_driver_irq_preinstall(drm_device_t * dev);
 extern void i915_driver_irq_postinstall(drm_device_t * dev);
@@ -126,13 +127,10 @@ extern void i915_mem_takedown(struct mem_block **heap);
 extern void i915_mem_release(drm_device_t * dev,
 			     DRMFILE filp, struct mem_block *heap);
 
-extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
-			      unsigned long arg);
-
-#define I915_READ(reg)          DRM_READ32(dev_priv->mmio_map, reg)
-#define I915_WRITE(reg,val)     DRM_WRITE32(dev_priv->mmio_map, reg, val)
-#define I915_READ16(reg) 	DRM_READ16(dev_priv->mmio_map, reg)
-#define I915_WRITE16(reg,val)	DRM_WRITE16(dev_priv->mmio_map, reg, val)
+#define I915_READ(reg)          DRM_READ32(dev_priv->mmio_map, (reg))
+#define I915_WRITE(reg,val)     DRM_WRITE32(dev_priv->mmio_map, (reg), (val))
+#define I915_READ16(reg) 	DRM_READ16(dev_priv->mmio_map, (reg))
+#define I915_WRITE16(reg,val)	DRM_WRITE16(dev_priv->mmio_map, (reg), (val))
 
 #define I915_VERBOSE 0
 
@@ -196,6 +194,13 @@ extern int i915_wait_ring(drm_device_t * dev, int n, const char *caller);
 #define PPCR			0x61204
 #define PPCR_ON			(1<<0)
 
+#define DVOB			0x61140
+#define DVOB_ON			(1<<31)
+#define DVOC			0x61160
+#define DVOC_ON			(1<<31)
+#define LVDS			0x61180
+#define LVDS_ON			(1<<31)
+
 #define ADPA			0x61100
 #define ADPA_DPMS_MASK		(~(3<<10))
 #define ADPA_DPMS_ON		(0<<10)
@@ -259,4 +264,6 @@ extern int i915_wait_ring(drm_device_t * dev, int n, const char *caller);
 
 #define CMD_OP_DESTBUFFER_INFO	 ((0x3<<29)|(0x1d<<24)|(0x8e<<16)|1)
 
+#define READ_BREADCRUMB(dev_priv) (((u32 *)(dev_priv->hw_status_page))[5])
+
 #endif

drivers/char/drm/i915_irq.c

-/* i915_dma.c -- DMA support for the I915 -*- linux-c -*-
+/* i915_irq.c -- IRQ support for the I915 -*- linux-c -*-
  */
-/**************************************************************************
- *
+/*
  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
  *
@@ -25,16 +24,18 @@
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
- **************************************************************************/
+ */
 
 #include "drmP.h"
 #include "drm.h"
 #include "i915_drm.h"
 #include "i915_drv.h"
 
-#define USER_INT_FLAG 0x2
+#define USER_INT_FLAG (1<<1)
+#define VSYNC_PIPEB_FLAG (1<<5)
+#define VSYNC_PIPEA_FLAG (1<<7)
+
 #define MAX_NOPID ((u32)~0)
-#define READ_BREADCRUMB(dev_priv)  (((u32*)(dev_priv->hw_status_page))[5])
 
 irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 {
@@ -43,7 +44,7 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 	u16 temp;
 
 	temp = I915_READ16(I915REG_INT_IDENTITY_R);
-	temp &= USER_INT_FLAG;
+	temp &= (USER_INT_FLAG | VSYNC_PIPEA_FLAG);
 
 	DRM_DEBUG("%s flag=%08x\n", __FUNCTION__, temp);
 
@@ -51,7 +52,15 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 		return IRQ_NONE;
 
 	I915_WRITE16(I915REG_INT_IDENTITY_R, temp);
-	DRM_WAKEUP(&dev_priv->irq_queue);
+
+	if (temp & USER_INT_FLAG)
+		DRM_WAKEUP(&dev_priv->irq_queue);
+
+	if (temp & VSYNC_PIPEA_FLAG) {
+		atomic_inc(&dev->vbl_received);
+		DRM_WAKEUP(&dev->vbl_queue);
+		drm_vbl_send_signals(dev);
+	}
 
 	return IRQ_HANDLED;
 }
@@ -102,6 +111,27 @@ static int i915_wait_irq(drm_device_t * dev, int irq_nr)
 	return ret;
 }
 
+int i915_driver_vblank_wait(drm_device_t *dev, unsigned int *sequence)
+{
+	drm_i915_private_t *dev_priv = 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);
+	}
+
+	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 i915_irq_emit(DRM_IOCTL_ARGS)
@@ -165,7 +195,7 @@ void i915_driver_irq_postinstall(drm_device_t * dev)
 {
 	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
-	I915_WRITE16(I915REG_INT_ENABLE_R, USER_INT_FLAG);
+	I915_WRITE16(I915REG_INT_ENABLE_R, USER_INT_FLAG | VSYNC_PIPEA_FLAG);
 	DRM_INIT_WAITQUEUE(&dev_priv->irq_queue);
 }
 

drivers/char/drm/i915_mem.c

 /* i915_mem.c -- Simple agp/fb memory manager for i915 -*- linux-c -*-
  */
-/**************************************************************************
- *
+/*
  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
  * All Rights Reserved.
  *
@@ -25,7 +24,7 @@
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *
- **************************************************************************/
+ */
 
 #include "drmP.h"
 #include "drm.h"