[intel] Fix build for GEM. TTM is now disabled, and fencing is gone.

Fencing was used in two places: ensuring that we didn't get too many frames
ahead of ourselves, and glFinish.  glFinish will be satisfied by waiting on
buffers like we would do for CPU access on them.  The "don't get too far ahead"
is now the responsibility of the execution manager (kernel).

3 files changed, 13 insertions, 132 deletions

diff --git a/src/mesa/drivers/dri/common/dri_bufmgr.c b/src/mesa/drivers/dri/common/dri_bufmgr.c
index 70ae091499..69868b6665 100644
--- a/src/mesa/drivers/dri/common/dri_bufmgr.c
+++ b/src/mesa/drivers/dri/common/dri_bufmgr.c
@@ -91,27 +91,6 @@ dri_bo_unmap(dri_bo *buf)
 }
 
 void
-dri_fence_wait(dri_fence *fence)
-{
-   fence->bufmgr->fence_wait(fence);
-}
-
-void
-dri_fence_reference(dri_fence *fence)
-{
-   fence->bufmgr->fence_reference(fence);
-}
-
-void
-dri_fence_unreference(dri_fence *fence)
-{
-   if (fence == NULL)
-      return;
-
-   fence->bufmgr->fence_unreference(fence);
-}
-
-void
 dri_bo_subdata(dri_bo *bo, unsigned long offset,
 	       unsigned long size, const void *data)
 {
@@ -153,9 +132,9 @@ void *dri_process_relocs(dri_bo *batch_buf)
    return batch_buf->bufmgr->process_relocs(batch_buf);
 }
 
-void dri_post_submit(dri_bo *batch_buf, dri_fence **last_fence)
+void dri_post_submit(dri_bo *batch_buf)
 {
-   batch_buf->bufmgr->post_submit(batch_buf, last_fence);
+   batch_buf->bufmgr->post_submit(batch_buf);
 }
 
 void
diff --git a/src/mesa/drivers/dri/common/dri_bufmgr.h b/src/mesa/drivers/dri/common/dri_bufmgr.h
index cbfeb9136d..dffeb4c601 100644
--- a/src/mesa/drivers/dri/common/dri_bufmgr.h
+++ b/src/mesa/drivers/dri/common/dri_bufmgr.h
@@ -38,7 +38,6 @@
 
 typedef struct _dri_bufmgr dri_bufmgr;
 typedef struct _dri_bo dri_bo;
-typedef struct _dri_fence dri_fence;
 
 struct _dri_bo {
    /**
@@ -61,18 +60,6 @@ struct _dri_bo {
    dri_bufmgr *bufmgr;
 };
 
-struct _dri_fence {
-   /**
-    * This is an ORed mask of DRM_BO_FLAG_READ, DRM_BO_FLAG_WRITE, and
-    * DRM_FLAG_EXE indicating the operations associated with this fence.
-    *
-    * It is constant for the life of the fence object.
-    */
-   unsigned int type;
-   /** Buffer manager context associated with this fence */
-   dri_bufmgr *bufmgr;
-};
-
 /**
  * Context for a buffer manager instance.
  *
@@ -113,28 +100,15 @@ struct _dri_bufmgr {
    /**
     * Maps the buffer into userspace.
     *
-    * This function will block waiting for any existing fence on the buffer to
-    * clear, first.  The resulting mapping is available at buf->virtual.
-\    */
+    * This function will block waiting for any existing execution on the
+    * buffer to complete, first.  The resulting mapping is available at
+    * buf->virtual.
+    */
    int (*bo_map)(dri_bo *buf, GLboolean write_enable);
 
    /** Reduces the refcount on the userspace mapping of the buffer object. */
    int (*bo_unmap)(dri_bo *buf);
 
-   /** Takes a reference on a fence object */
-   void (*fence_reference)(dri_fence *fence);
-
-   /**
-    * Releases a reference on a fence object, freeing the data if
-    * rerefences remain.
-    */
-   void (*fence_unreference)(dri_fence *fence);
-
-   /**
-    * Blocks until the given fence is signaled.
-    */
-   void (*fence_wait)(dri_fence *fence);
-
    /**
     * Tears down the buffer manager instance.
     */
@@ -179,7 +153,7 @@ struct _dri_bufmgr {
     */
    void *(*process_relocs)(dri_bo *batch_buf);
 
-   void (*post_submit)(dri_bo *batch_buf, dri_fence **fence);
+   void (*post_submit)(dri_bo *batch_buf);
 
    int (*check_aperture_space)(dri_bo *bo);
    GLboolean debug; /**< Enables verbose debugging printouts */
@@ -194,9 +168,6 @@ void dri_bo_reference(dri_bo *bo);
 void dri_bo_unreference(dri_bo *bo);
 int dri_bo_map(dri_bo *buf, GLboolean write_enable);
 int dri_bo_unmap(dri_bo *buf);
-void dri_fence_wait(dri_fence *fence);
-void dri_fence_reference(dri_fence *fence);
-void dri_fence_unreference(dri_fence *fence);
 
 void dri_bo_subdata(dri_bo *bo, unsigned long offset,
 		    unsigned long size, const void *data);
@@ -221,7 +192,7 @@ int dri_emit_reloc(dri_bo *reloc_buf, uint64_t flags, GLuint delta,
 		   GLuint offset, dri_bo *target_buf);
 void *dri_process_relocs(dri_bo *batch_buf);
 void dri_post_process_relocs(dri_bo *batch_buf);
-void dri_post_submit(dri_bo *batch_buf, dri_fence **last_fence);
+void dri_post_submit(dri_bo *batch_buf);
 int dri_bufmgr_check_aperture_space(dri_bo *bo);
 
 #endif
diff --git a/src/mesa/drivers/dri/common/dri_bufmgr_fake.c b/src/mesa/drivers/dri/common/dri_bufmgr_fake.c
index 9dd06b07eb..fc52674839 100644
--- a/src/mesa/drivers/dri/common/dri_bufmgr_fake.c
+++ b/src/mesa/drivers/dri/common/dri_bufmgr_fake.c
@@ -170,15 +170,6 @@ typedef struct _dri_bo_fake {
    void *invalidate_ptr;
 } dri_bo_fake;
 
-typedef struct _dri_fence_fake {
-   dri_fence fence;
-
-   const char *name;
-   unsigned int refcount;
-   unsigned int fence_cookie;
-   GLboolean flushed;
-} dri_fence_fake;
-
 static int clear_fenced(dri_bufmgr_fake *bufmgr_fake,
 			unsigned int fence_cookie);
 
@@ -898,63 +889,16 @@ dri_fake_bo_validate(dri_bo *bo, uint64_t flags)
    return 0;
 }
 
-static dri_fence *
-dri_fake_fence_validated(dri_bufmgr *bufmgr, const char *name,
-			 GLboolean flushed)
+static void
+dri_fake_fence_validated(dri_bufmgr *bufmgr)
 {
-   dri_fence_fake *fence_fake;
    dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)bufmgr;
    unsigned int cookie;
 
-   fence_fake = malloc(sizeof(*fence_fake));
-   if (!fence_fake)
-      return NULL;
-
-   fence_fake->refcount = 1;
-   fence_fake->name = name;
-   fence_fake->flushed = flushed;
-   fence_fake->fence.bufmgr = bufmgr;
-
    cookie = _fence_emit_internal(bufmgr_fake);
-   fence_fake->fence_cookie = cookie;
    fence_blocks(bufmgr_fake, cookie);
 
-   DBG("drm_fence_validated: 0x%08x cookie\n", fence_fake->fence_cookie);
-
-   return &fence_fake->fence;
-}
-
-static void
-dri_fake_fence_reference(dri_fence *fence)
-{
-   dri_fence_fake *fence_fake = (dri_fence_fake *)fence;
-
-   ++fence_fake->refcount;
-}
-
-static void
-dri_fake_fence_unreference(dri_fence *fence)
-{
-   dri_fence_fake *fence_fake = (dri_fence_fake *)fence;
-
-   if (!fence)
-      return;
-
-   if (--fence_fake->refcount == 0) {
-      free(fence);
-      return;
-   }
-}
-
-static void
-dri_fake_fence_wait(dri_fence *fence)
-{
-   dri_fence_fake *fence_fake = (dri_fence_fake *)fence;
-   dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)fence->bufmgr;
-
-   DBG("drm_fence_wait: 0x%08x cookie\n", fence_fake->fence_cookie);
-
-   _fence_wait_internal(bufmgr_fake, fence_fake->fence_cookie);
+   DBG("drm_fence_validated: 0x%08x cookie\n", cookie);
 }
 
 static void
@@ -1156,19 +1100,9 @@ dri_bo_fake_post_submit(dri_bo *bo)
 
 
 static void
-dri_fake_post_submit(dri_bo *batch_buf, dri_fence **last_fence)
+dri_fake_post_submit(dri_bo *batch_buf)
 {
-   dri_bufmgr_fake *bufmgr_fake = (dri_bufmgr_fake *)batch_buf->bufmgr;
-   dri_fence *fo;
-
-   fo = dri_fake_fence_validated(batch_buf->bufmgr, "Batch fence", GL_TRUE);
-
-   if (bufmgr_fake->performed_rendering) {
-      dri_fence_unreference(*last_fence);
-      *last_fence = fo;
-   } else {
-      dri_fence_unreference(fo);
-   }
+   dri_fake_fence_validated(batch_buf->bufmgr);
 
    dri_bo_fake_post_submit(batch_buf);
 }
@@ -1224,9 +1158,6 @@ dri_bufmgr_fake_init(unsigned long low_offset, void *low_virtual,
    bufmgr_fake->bufmgr.bo_unreference = dri_fake_bo_unreference;
    bufmgr_fake->bufmgr.bo_map = dri_fake_bo_map;
    bufmgr_fake->bufmgr.bo_unmap = dri_fake_bo_unmap;
-   bufmgr_fake->bufmgr.fence_wait = dri_fake_fence_wait;
-   bufmgr_fake->bufmgr.fence_reference = dri_fake_fence_reference;
-   bufmgr_fake->bufmgr.fence_unreference = dri_fake_fence_unreference;
    bufmgr_fake->bufmgr.destroy = dri_fake_destroy;
    bufmgr_fake->bufmgr.emit_reloc = dri_fake_emit_reloc;
    bufmgr_fake->bufmgr.process_relocs = dri_fake_process_relocs;