1 files changed, 138 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915tex/intel_ioctl.c b/src/mesa/drivers/dri/i915tex/intel_ioctl.c
new file mode 100644
index 00000000000..3250c6b3a9c
--- /dev/null
+++ b/src/mesa/drivers/dri/i915tex/intel_ioctl.c
@@ -0,0 +1,138 @@
+/**************************************************************************
+ * 
+ * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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, sub license, 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 NON-INFRINGEMENT.
+ * 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.
+ * 
+ **************************************************************************/
+
+
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sched.h>
+
+#include "mtypes.h"
+#include "context.h"
+#include "swrast/swrast.h"
+
+#include "intel_context.h"
+#include "intel_ioctl.h"
+#include "intel_batchbuffer.h"
+#include "intel_blit.h"
+#include "intel_regions.h"
+#include "drm.h"
+
+#define FILE_DEBUG_FLAG DEBUG_IOCTL
+
+int
+intelEmitIrqLocked(struct intel_context *intel)
+{
+   drmI830IrqEmit ie;
+   int ret, seq;
+
+   assert(((*(int *) intel->driHwLock) & ~DRM_LOCK_CONT) ==
+          (DRM_LOCK_HELD | intel->hHWContext));
+
+   ie.irq_seq = &seq;
+
+   ret = drmCommandWriteRead(intel->driFd, DRM_I830_IRQ_EMIT,
+                             &ie, sizeof(ie));
+   if (ret) {
+      fprintf(stderr, "%s: drmI830IrqEmit: %d\n", __FUNCTION__, ret);
+      exit(1);
+   }
+
+   DBG("%s -->  %d\n", __FUNCTION__, seq);
+
+   return seq;
+}
+
+void
+intelWaitIrq(struct intel_context *intel, int seq)
+{
+   int ret;
+
+   DBG("%s %d\n", __FUNCTION__, seq);
+
+   intel->iw.irq_seq = seq;
+
+   do {
+      ret =
+         drmCommandWrite(intel->driFd, DRM_I830_IRQ_WAIT, &intel->iw,
+                         sizeof(intel->iw));
+   } while (ret == -EAGAIN || ret == -EINTR);
+
+   if (ret) {
+      fprintf(stderr, "%s: drmI830IrqWait: %d\n", __FUNCTION__, ret);
+      exit(1);
+   }
+}
+
+
+void
+intel_batch_ioctl(struct intel_context *intel,
+                  GLuint start_offset,
+                  GLuint used,
+                  GLboolean ignore_cliprects, GLboolean allow_unlock)
+{
+   drmI830BatchBuffer batch;
+
+   assert(intel->locked);
+   assert(used);
+
+   DBG("%s used %d offset %x..%x ignore_cliprects %d\n",
+       __FUNCTION__,
+       used, start_offset, start_offset + used, ignore_cliprects);
+
+   /* Throw away non-effective packets.  Won't work once we have
+    * hardware contexts which would preserve statechanges beyond a
+    * single buffer.
+    */
+
+
+
+   batch.start = start_offset;
+   batch.used = used;
+   batch.cliprects = intel->pClipRects;
+   batch.num_cliprects = ignore_cliprects ? 0 : intel->numClipRects;
+   batch.DR1 = 0;
+   batch.DR4 = ((((GLuint) intel->drawX) & 0xffff) |
+                (((GLuint) intel->drawY) << 16));
+
+   DBG("%s: 0x%x..0x%x DR4: %x cliprects: %d\n",
+       __FUNCTION__,
+       batch.start,
+       batch.start + batch.used * 4, batch.DR4, batch.num_cliprects);
+
+   if (drmCommandWrite(intel->driFd, DRM_I830_BATCHBUFFER, &batch,
+                       sizeof(batch))) {
+      fprintf(stderr, "DRM_I830_BATCHBUFFER: %d\n", -errno);
+      UNLOCK_HARDWARE(intel);
+      exit(1);
+   }
+
+   /* FIXME: use hardware contexts to avoid 'losing' hardware after
+    * each buffer flush.
+    */
+   intel->vtbl.lost_hardware(intel);
+}