[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).

1 files changed, 22 insertions, 34 deletions

diff --git a/src/mesa/drivers/dri/intel/intel_context.c b/src/mesa/drivers/dri/intel/intel_context.c
index 47e7d1afc2..4a1e1a9ac0 100644
--- a/src/mesa/drivers/dri/intel/intel_context.c
+++ b/src/mesa/drivers/dri/intel/intel_context.c
@@ -59,7 +59,7 @@
 #include "intel_buffer_objects.h"
 #include "intel_fbo.h"
 #include "intel_decode.h"
-#include "intel_bufmgr_ttm.h"
+#include "intel_bufmgr_gem.h"
 
 #include "drirenderbuffer.h"
 #include "vblank.h"
@@ -368,12 +368,16 @@ intelFlush(GLcontext * ctx)
 void
 intelFinish(GLcontext * ctx)
 {
-   struct intel_context *intel = intel_context(ctx);
+   struct gl_framebuffer *fb = ctx->DrawBuffer;
+   int i;
+
    intelFlush(ctx);
-   if (intel->batch->last_fence) {
-      dri_fence_wait(intel->batch->last_fence);
-      dri_fence_unreference(intel->batch->last_fence);
-      intel->batch->last_fence = NULL;
+
+   for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
+      /* XXX: Wait on buffer idle */
+   }
+   if (fb->_DepthBuffer) {
+      /* XXX: Wait on buffer idle */
    }
 }
 
@@ -439,28 +443,25 @@ static GLboolean
 intel_init_bufmgr(struct intel_context *intel)
 {
    intelScreenPrivate *intelScreen = intel->intelScreen;
-   GLboolean ttm_disable = getenv("INTEL_NO_TTM") != NULL;
-   GLboolean ttm_supported;
+   GLboolean gem_disable = getenv("INTEL_NO_GEM") != NULL;
+   GLboolean gem_supported;
 
-   /* If we've got a new enough DDX that's initializing TTM and giving us
+   /* If we've got a new enough DDX that's initializing GEM and giving us
     * object handles for the shared buffers, use that.
     */
    intel->ttm = GL_FALSE;
    if (intel->intelScreen->driScrnPriv->dri2.enabled)
-       ttm_supported = GL_TRUE;
+       gem_supported = GL_TRUE;
    else if (intel->intelScreen->driScrnPriv->ddx_version.minor >= 9 &&
 	    intel->intelScreen->drmMinor >= 11 &&
 	    intel->intelScreen->front.bo_handle != -1)
-       ttm_supported = GL_TRUE;
+       gem_supported = GL_TRUE;
    else
-       ttm_supported = GL_FALSE;
+       gem_supported = GL_FALSE;
 
-   if (!ttm_disable && ttm_supported) {
+   if (!gem_disable && gem_supported) {
       int bo_reuse_mode;
-      intel->bufmgr = intel_bufmgr_ttm_init(intel->driFd,
-					    DRM_FENCE_TYPE_EXE,
-					    DRM_FENCE_TYPE_EXE |
-					    DRM_I915_FENCE_TYPE_RW,
+      intel->bufmgr = intel_bufmgr_gem_init(intel->driFd,
 					    BATCH_SZ);
       if (intel->bufmgr != NULL)
 	 intel->ttm = GL_TRUE;
@@ -470,16 +471,16 @@ intel_init_bufmgr(struct intel_context *intel)
       case DRI_CONF_BO_REUSE_DISABLED:
 	 break;
       case DRI_CONF_BO_REUSE_ALL:
-	 intel_ttm_enable_bo_reuse(intel->bufmgr);
+	 intel_gem_enable_bo_reuse(intel->bufmgr);
 	 break;
       }
    }
    /* Otherwise, use the classic buffer manager. */
    if (intel->bufmgr == NULL) {
-      if (ttm_disable) {
-	 fprintf(stderr, "TTM buffer manager disabled.  Using classic.\n");
+      if (gem_disable) {
+	 fprintf(stderr, "GEM disabled.  Using classic.\n");
       } else {
-	 fprintf(stderr, "Failed to initialize TTM buffer manager.  "
+	 fprintf(stderr, "Failed to initialize GEM.  "
 		 "Falling back to classic.\n");
       }
 
@@ -663,8 +664,6 @@ intelInitContext(struct intel_context *intel,
       intel_recreate_static_regions(intel);
 
    intel->batch = intel_batchbuffer_alloc(intel);
-   intel->last_swap_fence = NULL;
-   intel->first_swap_fence = NULL;
 
    intel_bufferobj_init(intel);
    intel_fbo_init(intel);
@@ -718,17 +717,6 @@ intelDestroyContext(__DRIcontextPrivate * driContextPriv)
 
       intel_batchbuffer_free(intel->batch);
 
-      if (intel->last_swap_fence) {
-	 dri_fence_wait(intel->last_swap_fence);
-	 dri_fence_unreference(intel->last_swap_fence);
-	 intel->last_swap_fence = NULL;
-      }
-      if (intel->first_swap_fence) {
-	 dri_fence_wait(intel->first_swap_fence);
-	 dri_fence_unreference(intel->first_swap_fence);
-	 intel->first_swap_fence = NULL;
-      }
-
       if (release_texture_heaps) {
          /* This share group is about to go away, free our private
           * texture object data.