Revert "WIP 965 conversion to dri_bufmgr."

This reverts commit b2f1aa2389473ed09170713301b042661d70a48e.

Somehow I ended up with my branch's save-this-while-I-work-on-master commit
actually on master.

1 files changed, 0 insertions, 331 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_batchbuffer.c b/src/mesa/drivers/dri/intel/intel_batchbuffer.c
deleted file mode 100644
index 8ee48b5a68..0000000000
--- a/src/mesa/drivers/dri/intel/intel_batchbuffer.c
+++ /dev/null
@@ -1,331 +0,0 @@
-/**************************************************************************
- * 
- * 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 "intel_batchbuffer.h"
-#include "intel_ioctl.h"
-#include "intel_decode.h"
-#include "i915_debug.h"
-
-/* Relocations in kernel space:
- *    - pass dma buffer seperately
- *    - memory manager knows how to patch
- *    - pass list of dependent buffers
- *    - pass relocation list
- *
- * Either:
- *    - get back an offset for buffer to fire
- *    - memory manager knows how to fire buffer
- *
- * Really want the buffer to be AGP and pinned.
- *
- */
-
-/* Cliprect fence: The highest fence protecting a dma buffer
- * containing explicit cliprect information.  Like the old drawable
- * lock but irq-driven.  X server must wait for this fence to expire
- * before changing cliprects [and then doing sw rendering?].  For
- * other dma buffers, the scheduler will grab current cliprect info
- * and mix into buffer.  X server must hold the lock while changing
- * cliprects???  Make per-drawable.  Need cliprects in shared memory
- * -- beats storing them with every cmd buffer in the queue.
- *
- * ==> X server must wait for this fence to expire before touching the
- * framebuffer with new cliprects.
- *
- * ==> Cliprect-dependent buffers associated with a
- * cliprect-timestamp.  All of the buffers associated with a timestamp
- * must go to hardware before any buffer with a newer timestamp.
- *
- * ==> Dma should be queued per-drawable for correct X/GL
- * synchronization.  Or can fences be used for this?
- *
- * Applies to: Blit operations, metaops, X server operations -- X
- * server automatically waits on its own dma to complete before
- * modifying cliprects ???
- */
-
-void
-intel_batchbuffer_reset(struct intel_batchbuffer *batch)
-{
-   struct intel_context *intel = batch->intel;
-
-   if (batch->buf != NULL) {
-      dri_bo_unreference(batch->buf);
-      batch->buf = NULL;
-   }
-
-   batch->buf = dri_bo_alloc(intel->intelScreen->bufmgr, "batchbuffer",
-			     intel->intelScreen->maxBatchSize, 4096,
-			     DRM_BO_FLAG_MEM_TT);
-   dri_bo_map(batch->buf, GL_TRUE);
-   batch->map = batch->buf->virtual;
-   batch->size = intel->intelScreen->maxBatchSize;
-   batch->ptr = batch->map;
-}
-
-struct intel_batchbuffer *
-intel_batchbuffer_alloc(struct intel_context *intel)
-{
-   struct intel_batchbuffer *batch = calloc(sizeof(*batch), 1);
-
-   batch->intel = intel;
-   batch->last_fence = NULL;
-   intel_batchbuffer_reset(batch);
-
-   return batch;
-}
-
-void
-intel_batchbuffer_free(struct intel_batchbuffer *batch)
-{
-   if (batch->last_fence) {
-      dri_fence_wait(batch->last_fence);
-      dri_fence_unreference(batch->last_fence);
-      batch->last_fence = NULL;
-   }
-   if (batch->map) {
-      dri_bo_unmap(batch->buf);
-      batch->map = NULL;
-   }
-   dri_bo_unreference(batch->buf);
-   batch->buf = NULL;
-   free(batch);
-}
-
-static int
-relocation_sort(const void *a_in, const void *b_in) {
-   const struct buffer_reloc *a = a_in, *b = b_in;
-
-   return (intptr_t)a->buf < (intptr_t)b->buf ? -1 : 1;
-}
-
-
-/* TODO: Push this whole function into bufmgr.
- */
-static void
-do_flush_locked(struct intel_batchbuffer *batch,
-                GLuint used,
-                GLboolean ignore_cliprects, GLboolean allow_unlock)
-{
-   GLuint *ptr;
-   GLuint i;
-   struct intel_context *intel = batch->intel;
-   dri_fence *fo;
-   GLboolean performed_rendering = GL_FALSE;
-
-   assert(batch->buf->virtual != NULL);
-   ptr = batch->buf->virtual;
-
-   /* Sort our relocation list in terms of referenced buffer pointer.
-    * This lets us uniquely validate the buffers with the sum of all the flags,
-    * while avoiding O(n^2) on number of relocations.
-    */
-   qsort(batch->reloc, batch->nr_relocs, sizeof(batch->reloc[0]),
-	 relocation_sort);
-
-   /* Perform the necessary validations of buffers, and enter the relocations
-    * in the batchbuffer.
-    */
-   for (i = 0; i < batch->nr_relocs; i++) {
-      struct buffer_reloc *r = &batch->reloc[i];
-
-      if (r->validate_flags & DRM_BO_FLAG_WRITE)
-	 performed_rendering = GL_TRUE;
-
-      /* If this is the first time we've seen this buffer in the relocation
-       * list, figure out our flags and validate it.
-       */
-      if (i == 0 || batch->reloc[i - 1].buf != r->buf) {
-	 uint32_t validate_flags;
-	 int j, ret;
-
-	 /* Accumulate the flags we need for validating this buffer. */
-	 validate_flags = r->validate_flags;
-	 for (j = i + 1; j < batch->nr_relocs; j++) {
-	    if (batch->reloc[j].buf != r->buf)
-	       break;
-	    validate_flags |= batch->reloc[j].validate_flags;
-	 }
-
-	 /* Validate.  If we fail, fence to clear the unfenced list and bail
-	  * out.
-	  */
-	 ret = dri_bo_validate(r->buf, validate_flags);
-	 if (ret != 0) {
-	    dri_bo_unmap(batch->buf);
-	    fo = dri_fence_validated(intel->intelScreen->bufmgr,
-				     "batchbuffer failure fence", GL_TRUE);
-	    dri_fence_unreference(fo);
-	    goto done;
-	 }
-      }
-      ptr[r->offset / 4] = r->buf->offset + r->delta;
-      dri_bo_unreference(r->buf);
-   }
-
-   dri_bo_unmap(batch->buf);
-   batch->map = NULL;
-   batch->ptr = NULL;
-
-   dri_bo_validate(batch->buf, DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_EXE);
-
-   batch->list_count = 0;
-   batch->nr_relocs = 0;
-   batch->flags = 0;
-
-   /* Throw away non-effective packets.  Won't work once we have
-    * hardware contexts which would preserve statechanges beyond a
-    * single buffer.
-    */
-
-   if (!(intel->numClipRects == 0 && !ignore_cliprects)) {
-      intel_batch_ioctl(batch->intel,
-                        batch->buf->offset,
-                        used, ignore_cliprects, allow_unlock);
-   }
-
-   /* Associate a fence with the validated buffers, and note that we included
-    * a flush at the end.
-    */
-   fo = dri_fence_validated(intel->intelScreen->bufmgr,
-			    "Batch fence", GL_TRUE);
-
-   if (performed_rendering) {
-      dri_fence_unreference(batch->last_fence);
-      batch->last_fence = fo;
-   } else {
-     /* If we didn't validate any buffers for writing by the card, we don't
-      * need to track the fence for glFinish().
-      */
-      dri_fence_unreference(fo);
-   }
-
-   if (intel->numClipRects == 0 && !ignore_cliprects) {
-      if (allow_unlock) {
-	 /* If we are not doing any actual user-visible rendering,
-	  * do a sched_yield to keep the app from pegging the cpu while
-	  * achieving nothing.
-	  */
-         UNLOCK_HARDWARE(intel);
-         sched_yield();
-         LOCK_HARDWARE(intel);
-      }
-      intel->vtbl.lost_hardware(intel);
-   }
-
-done:
-   if (INTEL_DEBUG & DEBUG_BATCH) {
-      dri_bo_map(batch->buf, GL_FALSE);
-      intel_decode(ptr, used / 4, batch->buf->offset);
-      dri_bo_unmap(batch->buf);
-   }
-}
-
-
-void
-intel_batchbuffer_flush(struct intel_batchbuffer *batch)
-{
-   struct intel_context *intel = batch->intel;
-   GLuint used = batch->ptr - batch->map;
-   GLboolean was_locked = intel->locked;
-
-   if (used == 0)
-      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] = intel->vtbl.flush_cmd();
-      ((int *) batch->ptr)[1] = 0;
-      ((int *) batch->ptr)[2] = MI_BATCH_BUFFER_END;
-      used += 12;
-   }
-   else {
-      ((int *) batch->ptr)[0] = intel->vtbl.flush_cmd();
-      ((int *) batch->ptr)[1] = MI_BATCH_BUFFER_END;
-      used += 8;
-   }
-
-   /* TODO: Just pass the relocation list and dma buffer up to the
-    * kernel.
-    */
-   if (!was_locked)
-      LOCK_HARDWARE(intel);
-
-   do_flush_locked(batch, used, !(batch->flags & INTEL_BATCH_CLIPRECTS),
-		   GL_FALSE);
-
-   if (!was_locked)
-      UNLOCK_HARDWARE(intel);
-
-   /* Reset the buffer:
-    */
-   intel_batchbuffer_reset(batch);
-}
-
-void
-intel_batchbuffer_finish(struct intel_batchbuffer *batch)
-{
-   intel_batchbuffer_flush(batch);
-   if (batch->last_fence != NULL)
-      dri_fence_wait(batch->last_fence);
-}
-
-
-/*  This is the only way buffers get added to the validate list.
- */
-GLboolean
-intel_batchbuffer_emit_reloc(struct intel_batchbuffer *batch,
-                             dri_bo *buffer,
-                             GLuint flags, GLuint delta)
-{
-   struct buffer_reloc *r = &batch->reloc[batch->nr_relocs++];
-
-   assert(batch->nr_relocs <= MAX_RELOCS);
-
-   dri_bo_reference(buffer);
-   r->buf = buffer;
-   r->offset = batch->ptr - batch->map;
-   r->delta = delta;
-   r->validate_flags = flags;
-
-   batch->ptr += 4;
-   return GL_TRUE;
-}
-
-
-
-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;
-}