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-rw-r--r--linux/drm_os_linux.h14
-rw-r--r--linux/gamma_drm.h10
-rw-r--r--linux/i830_irq.c178
3 files changed, 195 insertions, 7 deletions
diff --git a/linux/drm_os_linux.h b/linux/drm_os_linux.h
index b99b4899..e9b24356 100644
--- a/linux/drm_os_linux.h
+++ b/linux/drm_os_linux.h
@@ -7,12 +7,12 @@
#define DRM_ERR(d) -(d)
#define DRM_CURRENTPID current->pid
#define DRM_UDELAY(d) udelay(d)
-#define DRM_READ8(map, offset) readb(((unsigned long)(map)->handle) + (offset))
-#define DRM_READ32(map, offset) readl(((unsigned long)(map)->handle) + (offset))
-#define DRM_WRITE8(map, offset, val) writeb(val, ((unsigned long)(map)->handle) + (offset))
-#define DRM_WRITE32(map, offset, val) writel(val, ((unsigned long)(map)->handle) + (offset))
-#define DRM_READMEMORYBARRIER(map) mb()
-#define DRM_WRITEMEMORYBARRIER(map) wmb()
+#define DRM_READ8(addr) readb(addr)
+#define DRM_READ32(addr) readl(addr)
+#define DRM_WRITE8(addr, val) writeb(val, addr)
+#define DRM_WRITE32(addr, val) writel(val, addr)
+#define DRM_READMEMORYBARRIER() mb()
+#define DRM_WRITEMEMORYBARRIER() wmb()
#define DRM_DEVICE drm_file_t *priv = filp->private_data; \
drm_device_t *dev = priv->dev
@@ -42,7 +42,7 @@
/* malloc/free without the overhead of DRM(alloc) */
#define DRM_MALLOC(x) kmalloc(x, GFP_KERNEL)
-#define DRM_FREE(x,size) kfree(x)
+#define DRM_FREE(x) kfree(x)
#define DRM_GETSAREA() \
do { \
diff --git a/linux/gamma_drm.h b/linux/gamma_drm.h
index d06763ae..0d58b07b 100644
--- a/linux/gamma_drm.h
+++ b/linux/gamma_drm.h
@@ -48,6 +48,16 @@ typedef struct _drm_gamma_sarea {
int vertex_prim;
} drm_gamma_sarea_t;
+/* WARNING: If you change any of these defines, make sure to change the
+ * defines in the Xserver file (xf86drmGamma.h)
+ */
+
+/* Gamma specific ioctls
+ * The device specific ioctl range is 0x40 to 0x79.
+ */
+#define DRM_IOCTL_GAMMA_INIT DRM_IOW( 0x40, drm_gamma_init_t)
+#define DRM_IOCTL_GAMMA_COPY DRM_IOW( 0x41, drm_gamma_copy_t)
+
typedef struct drm_gamma_copy {
unsigned int DMAOutputAddress;
unsigned int DMAOutputCount;
diff --git a/linux/i830_irq.c b/linux/i830_irq.c
new file mode 100644
index 00000000..cedafc0d
--- /dev/null
+++ b/linux/i830_irq.c
@@ -0,0 +1,178 @@
+/* i830_dma.c -- DMA support for the I830 -*- linux-c -*-
+ *
+ * Copyright 2002 Tungsten Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * 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
+ * TUNGSTEN GRAPHICS 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>
+ *
+ */
+
+#define __NO_VERSION__
+#include "i830.h"
+#include "drmP.h"
+#include "drm.h"
+#include "i830_drm.h"
+#include "i830_drv.h"
+#include <linux/interrupt.h> /* For task queue support */
+#include <linux/delay.h>
+
+
+void DRM(dma_service)(int irq, void *device, struct pt_regs *regs)
+{
+ drm_device_t *dev = (drm_device_t *)device;
+ drm_i830_private_t *dev_priv = (drm_i830_private_t *)dev->dev_private;
+ u16 temp;
+
+ temp = I830_READ16(I830REG_INT_IDENTITY_R);
+ printk("%s: %x\n", __FUNCTION__, temp);
+
+ if(temp == 0)
+ return;
+
+ I830_WRITE16(I830REG_INT_IDENTITY_R, temp);
+
+ if (temp & 2) {
+ atomic_inc(&dev_priv->irq_received);
+ wake_up_interruptible(&dev_priv->irq_queue);
+ }
+}
+
+
+int i830_emit_irq(drm_device_t *dev)
+{
+ drm_i830_private_t *dev_priv = dev->dev_private;
+ RING_LOCALS;
+
+ DRM_DEBUG("%s\n", __FUNCTION__);
+
+ atomic_inc(&dev_priv->irq_emitted);
+
+ BEGIN_LP_RING(2);
+ OUT_RING( 0 );
+ OUT_RING( GFX_OP_USER_INTERRUPT );
+ ADVANCE_LP_RING();
+
+ return atomic_read(&dev_priv->irq_emitted);
+}
+
+
+int i830_wait_irq(drm_device_t *dev, int irq_nr)
+{
+ drm_i830_private_t *dev_priv =
+ (drm_i830_private_t *)dev->dev_private;
+ DECLARE_WAITQUEUE(entry, current);
+ unsigned long end = jiffies + HZ*3;
+ int ret = 0;
+
+ DRM_DEBUG("%s\n", __FUNCTION__);
+
+ if (atomic_read(&dev_priv->irq_received) >= irq_nr)
+ return 0;
+
+ dev_priv->sarea_priv->perf_boxes |= I830_BOX_WAIT;
+
+ add_wait_queue(&dev_priv->irq_queue, &entry);
+
+ for (;;) {
+ current->state = TASK_INTERRUPTIBLE;
+ if (atomic_read(&dev_priv->irq_received) >= irq_nr)
+ break;
+ if((signed)(end - jiffies) <= 0) {
+ DRM_ERROR("timeout iir %x imr %x ier %x hwstam %x\n",
+ I830_READ16( I830REG_INT_IDENTITY_R ),
+ I830_READ16( I830REG_INT_MASK_R ),
+ I830_READ16( I830REG_INT_ENABLE_R ),
+ I830_READ16( I830REG_HWSTAM ));
+
+ ret = -EBUSY; /* Lockup? Missed irq? */
+ break;
+ }
+ schedule_timeout(HZ*3);
+ if (signal_pending(current)) {
+ ret = -EINTR;
+ break;
+ }
+ }
+
+ current->state = TASK_RUNNING;
+ remove_wait_queue(&dev_priv->irq_queue, &entry);
+ return ret;
+}
+
+
+/* Needs the lock as it touches the ring.
+ */
+int i830_irq_emit( struct inode *inode, struct file *filp, unsigned int cmd,
+ unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_i830_private_t *dev_priv = dev->dev_private;
+ drm_i830_irq_emit_t emit;
+ int result;
+
+ if(!_DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)) {
+ DRM_ERROR("i830_irq_emit called without lock held\n");
+ return -EINVAL;
+ }
+
+ if ( !dev_priv ) {
+ DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
+ return -EINVAL;
+ }
+
+ if (copy_from_user( &emit, (drm_i830_irq_emit_t *)arg, sizeof(emit) ))
+ return -EFAULT;
+
+ result = i830_emit_irq( dev );
+
+ if ( copy_to_user( emit.irq_seq, &result, sizeof(int) ) ) {
+ DRM_ERROR( "copy_to_user\n" );
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+
+/* Doesn't need the hardware lock.
+ */
+int i830_irq_wait( struct inode *inode, struct file *filp, unsigned int cmd,
+ unsigned long arg )
+{
+ drm_file_t *priv = filp->private_data;
+ drm_device_t *dev = priv->dev;
+ drm_i830_private_t *dev_priv = dev->dev_private;
+ drm_i830_irq_wait_t irqwait;
+
+ if ( !dev_priv ) {
+ DRM_ERROR( "%s called with no initialization\n", __FUNCTION__ );
+ return -EINVAL;
+ }
+
+ if (copy_from_user( &irqwait, (drm_i830_irq_wait_t *)arg,
+ sizeof(irqwait) ))
+ return -EFAULT;
+
+ return i830_wait_irq( dev, irqwait.irq_seq );
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 03:32:48 +0000