From: Brad Volkin <bradley.d.vol...@intel.com>
By adding a new exec_entry flag, we cleanly mark the shadow objects
as purgeable after they are on the active list.
Signed-off-by: Brad Volkin <bradley.d.vol...@intel.com>
---
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 20835b8..a271bc0 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -37,6 +37,7 @@
#define __EXEC_OBJECT_HAS_FENCE (1<<30)
#define __EXEC_OBJECT_NEEDS_MAP (1<<29)
#define __EXEC_OBJECT_NEEDS_BIAS (1<<28)
+#define __EXEC_OBJECT_PURGEABLE (1<<27)
#define BATCH_OFFSET_BIAS (256*1024)
@@ -223,7 +224,12 @@ i915_gem_execbuffer_unreserve_vma(struct i915_vma *vma)
if (entry->flags & __EXEC_OBJECT_HAS_PIN)
vma->pin_count--;
- entry->flags &= ~(__EXEC_OBJECT_HAS_FENCE | __EXEC_OBJECT_HAS_PIN);
+ if (entry->flags & __EXEC_OBJECT_PURGEABLE)
+ obj->madv = I915_MADV_DONTNEED;
+
+ entry->flags &= ~(__EXEC_OBJECT_HAS_FENCE |
+ __EXEC_OBJECT_HAS_PIN |
+ __EXEC_OBJECT_PURGEABLE);
}
static void eb_destroy(struct eb_vmas *eb)
@@ -1373,6 +1379,8 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
goto err;
}
+ shadow_batch_obj->madv = I915_MADV_WILLNEED;
+
ret = i915_gem_obj_ggtt_pin(shadow_batch_obj, 4096, 0);
if (ret)
goto err;
@@ -1396,6 +1404,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
vma = i915_gem_obj_to_ggtt(shadow_batch_obj);
vma->exec_entry = &shadow_exec_entry;
+ vma->exec_entry->flags = __EXEC_OBJECT_PURGEABLE;
drm_gem_object_reference(&shadow_batch_obj->base);
list_add_tail(&vma->exec_list, &eb->vmas);
--
1.9.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
