drm/i915: Remove spurious warning "Failure to install fence"

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From: Linux Kernel Mailing List
Date: Tuesday, June 1, 2010 - 2:59 pm

Gitweb:     http://git.kernel.org/linus/3d1cc47037f36004b10681d3436ef0942ebb279b
Commit:     3d1cc47037f36004b10681d3436ef0942ebb279b
Parent:     ac0c6b5ad3b3b513e1057806d4b7627fcc0ecc27
Author:     Chris Wilson <chris@chris-wilson.co.uk>
AuthorDate: Thu May 27 13:18:19 2010 +0100
Committer:  Eric Anholt <eric@anholt.net>
CommitDate: Fri May 28 10:49:38 2010 -0700

    drm/i915: Remove spurious warning "Failure to install fence"
    
    This particular warning is harmless as we emit during the normal
    pinning process where the batch buffer requires more fences than is
    available without eviction. Only if we fail to evict enough fences does
    this become a problem, so include the requested number of fences in the
    ultimate *error* message.
    
    v2: Remember to compile test even trial patches to remove warnings.
    
    Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
    Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_gem.c |   17 +++++++++++------
 1 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index a5ca959..b87945d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3327,9 +3327,6 @@ i915_gem_object_pin_and_relocate(struct drm_gem_object *obj,
 	if (need_fence) {
 		ret = i915_gem_object_get_fence_reg(obj);
 		if (ret != 0) {
-			if (ret != -EBUSY && ret != -ERESTARTSYS)
-				DRM_ERROR("Failure to install fence: %d\n",
-					  ret);
 			i915_gem_object_unpin(obj);
 			return ret;
 		}
@@ -3815,11 +3812,19 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 		if (ret != -ENOSPC || pin_tries >= 1) {
 			if (ret != -ERESTARTSYS) {
 				unsigned long long total_size = 0;
-				for (i = 0; i < args->buffer_count; i++)
+				int num_fences = 0;
+				for (i = 0; i < args->buffer_count; i++) {
+					obj_priv = object_list[i]->driver_private;
+
 					total_size += object_list[i]->size;
-				DRM_ERROR("Failed to pin buffer %d of %d, total %llu bytes: %d\n",
+					num_fences +=
+						exec_list[i].flags & EXEC_OBJECT_NEEDS_FENCE &&
+						obj_priv->tiling_mode != I915_TILING_NONE;
+				}
+				DRM_ERROR("Failed to pin buffer %d of %d, total %llu bytes, %d fences: %d\n",
 					  pinned+1, args->buffer_count,
-					  total_size, ret);
+					  total_size, num_fences,
+					  ret);
 				DRM_ERROR("%d objects [%d pinned], "
 					  "%d object bytes [%d pinned], "
 					  "%d/%d gtt bytes\n",
--
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drm/i915: Remove spurious warning "Failure to install fence", Linux Kernel Mailing ..., (Tue Jun 1, 2:59 pm)