Add Intel i965G/Q DRI driver.

This driver comes from Tungsten Graphics, with a few further modifications by
Intel.

1 files changed, 250 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/i965/intel_batchbuffer.c b/src/mesa/drivers/dri/i965/intel_batchbuffer.c
new file mode 100644
index 0000000000..441412a7c2
--- /dev/null
+++ b/src/mesa/drivers/dri/i965/intel_batchbuffer.c
@@ -0,0 +1,250 @@
+/**************************************************************************
+ * 
+ * Copyright 2006 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 "imports.h"
+#include "intel_batchbuffer.h"
+#include "intel_ioctl.h"
+#include "bufmgr.h"
+
+
+static void intel_batchbuffer_reset( struct intel_batchbuffer *batch )
+{
+   assert(batch->map == NULL);
+
+   batch->offset = (unsigned long)batch->ptr;
+   batch->offset = (batch->offset + 63) & ~63;
+   batch->ptr = (unsigned char *) batch->offset;
+
+   if (BATCH_SZ - batch->offset < BATCH_REFILL) {
+      bmBufferData(batch->intel, 
+		   batch->buffer,
+		   BATCH_SZ, 
+		   NULL, 
+		   0); 
+      batch->offset = 0;
+      batch->ptr = NULL;
+   }
+		
+   batch->flags = 0;
+}
+
+static void intel_batchbuffer_reset_cb( struct intel_context *intel,
+					void *ptr )
+{
+   struct intel_batchbuffer *batch = (struct intel_batchbuffer *)ptr;
+   assert(batch->map == NULL);
+   batch->flags = 0;
+   batch->offset = 0;
+   batch->ptr = NULL;
+}
+
+void intel_batchbuffer_map( struct intel_batchbuffer *batch )
+{
+   if (!batch->map) {
+      batch->map = bmMapBuffer(batch->intel, batch->buffer, 
+			       BM_MEM_AGP|BM_MEM_LOCAL|BM_CLIENT|BM_WRITE);
+      batch->ptr += (unsigned long)batch->map;
+   }
+   assert(batch->map);
+}
+
+void intel_batchbuffer_unmap( struct intel_batchbuffer *batch )
+{
+   if (batch->map) {
+      batch->ptr -= (unsigned long)batch->map;
+      batch->map = NULL;
+      bmUnmapBuffer(batch->intel, batch->buffer);
+   }
+}
+
+
+
+/*======================================================================
+ * Public functions
+ */
+struct intel_batchbuffer *intel_batchbuffer_alloc( struct intel_context *intel )
+{
+   struct intel_batchbuffer *batch = calloc(sizeof(*batch), 1);
+
+   batch->intel = intel;
+
+   bmGenBuffers(intel, "batch", 1, &batch->buffer);
+
+   bmBufferSetInvalidateCB(intel, batch->buffer,
+			   intel_batchbuffer_reset_cb,
+			   batch,
+			   GL_TRUE);
+
+   bmBufferData(batch->intel,
+		batch->buffer,
+		BATCH_SZ,
+		NULL,
+		0);
+
+
+   return batch;
+}
+
+void intel_batchbuffer_free( struct intel_batchbuffer *batch )
+{
+   if (batch->map) 
+      bmUnmapBuffer(batch->intel, batch->buffer);
+   
+   bmDeleteBuffers(batch->intel, 1, &batch->buffer);
+   free(batch);
+}
+
+
+#define MI_BATCH_BUFFER_END 	(0xA<<23)
+
+
+void intel_batchbuffer_flush( struct intel_batchbuffer *batch )
+{
+   struct intel_context *intel = batch->intel;
+   GLuint used = batch->ptr - (batch->map + batch->offset);
+   GLuint offset;
+   GLboolean ignore_cliprects = (batch->flags & INTEL_BATCH_CLIPRECTS) ? GL_FALSE : GL_TRUE;
+
+   assert(intel->locked);
+
+   if (used == 0) {
+      bmReleaseBuffers( batch->intel );
+      return;
+   }
+
+   /* Throw away non-effective packets.  
+    */
+   if (intel->numClipRects == 0 && !ignore_cliprects) {
+      batch->ptr = batch->map + batch->offset;
+      bmReleaseBuffers( batch->intel );
+      intel->vtbl.lost_hardware(intel);
+      batch->flags = 0;
+
+      UNLOCK_HARDWARE(intel);
+      sched_yield();
+      LOCK_HARDWARE(intel);
+
+      return;
+   }
+
+
+   /* Add the MI_BATCH_BUFFER_END.  Always add an MI_FLUSH - this is a
+    * performance drain that we would like to avoid.
+    */
+   if (used & 4) {
+      ((int *)batch->ptr)[0] = MI_BATCH_BUFFER_END;
+      batch->ptr += 4;
+      used += 4;
+   }
+   else {
+      ((int *)batch->ptr)[0] = 0;
+      ((int *)batch->ptr)[1] = MI_BATCH_BUFFER_END;
+
+      batch->ptr += 8;
+      used += 8;
+   }
+
+   intel_batchbuffer_unmap(batch);
+
+   /* Get the batch buffer offset: Must call bmBufferOffset() before
+    * bmValidateBuffers(), otherwise the buffer won't be on the inuse
+    * list.
+    */
+   offset = bmBufferOffset(batch->intel, batch->buffer);
+
+   if (!bmValidateBuffers( batch->intel )) {
+      assert(0);
+   }
+
+
+   if (intel->aub_file) {
+      /* Send buffered commands to aubfile as a single packet. 
+       */
+      intel_batchbuffer_map(batch);
+      ((int *)batch->ptr)[-1] = intel->vtbl.flush_cmd();
+      intel->vtbl.aub_commands(intel,
+			       offset, /* Fulsim wierdness - don't adjust */
+			       batch->map + batch->offset,
+			       used);
+      ((int *)batch->ptr)[-1] = MI_BATCH_BUFFER_END;
+      intel_batchbuffer_unmap(batch);
+   }
+
+
+   /* Fire the batch buffer, which was uploaded above:
+    */
+   intel_batch_ioctl(batch->intel, 
+		     offset + batch->offset,
+		     used,
+		     ignore_cliprects);
+
+   if (intel->aub_file && 
+       intel->ctx.DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT)
+      intel->vtbl.aub_dump_bmp( intel, 0 );
+
+   /* Reset the buffer:
+    */
+   intel_batchbuffer_reset( batch );
+   intel_batchbuffer_map( batch );
+}
+
+
+
+
+
+
+
+void intel_batchbuffer_align( struct intel_batchbuffer *batch,
+			      GLuint align,
+			      GLuint sz )
+{
+   unsigned long ptr = (unsigned long) batch->ptr;
+   unsigned long aptr = (ptr + align) & ~((unsigned long)align-1);
+   GLuint fixup = aptr - ptr;
+
+   if (intel_batchbuffer_space(batch) < fixup + sz)
+      intel_batchbuffer_flush(batch);
+   else {
+      memset(batch->ptr, 0, fixup);      
+      batch->ptr += fixup;
+   }
+}
+
+
+
+
+void intel_batchbuffer_data(struct intel_batchbuffer *batch,
+			    const void *data,
+			    GLuint bytes,
+			    GLuint flags)
+{
+   assert((bytes & 3) == 0);
+   intel_batchbuffer_require_space(batch, bytes, flags);
+   __memcpy(batch->ptr, data, bytes);
+   batch->ptr += bytes;
+}
+