PIN_GLOBAL is set only when userspace asked for it, and that
is only the case for the gen6 PIPE_CONTROL workaround. We're not
allowed to just clear this.
The important part of the fallback is to drop the restriction to
the mappable range.
This issue has been introduced in
commit edf4427b8055dc93eb5222d8174b07a75ba24fb5
Author: Chris Wilson ch...@chris-wilson.co.uk
Date: Wed Jan 14 11:20:56 2015 +
drm/i915: Fallback to using CPU relocations for large batch buffers
v2: Chris pointed out that we also miss to set PIN_GLOBAL when the
buffer is already bound. Fix this up too.
Cc: Chris Wilson ch...@chris-wilson.co.uk
Reviewed-by: Chris Wilson ch...@chris-wilson.co.uk
Signed-off-by: Daniel Vetter daniel.vet...@ffwll.ch
---
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 48ac5608481e..564425fce1a7 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -586,11 +586,12 @@ i915_gem_execbuffer_reserve_vma(struct i915_vma *vma,
int ret;
flags = 0;
+ if (entry-flags EXEC_OBJECT_NEEDS_GTT)
+ flags |= PIN_GLOBAL;
+
if (!drm_mm_node_allocated(vma-node)) {
if (entry-flags __EXEC_OBJECT_NEEDS_MAP)
flags |= PIN_GLOBAL | PIN_MAPPABLE;
- if (entry-flags EXEC_OBJECT_NEEDS_GTT)
- flags |= PIN_GLOBAL;
if (entry-flags __EXEC_OBJECT_NEEDS_BIAS)
flags |= BATCH_OFFSET_BIAS | PIN_OFFSET_BIAS;
}
@@ -600,7 +601,7 @@ i915_gem_execbuffer_reserve_vma(struct i915_vma *vma,
only_mappable_for_reloc(entry-flags))
ret = i915_gem_object_pin(obj, vma-vm,
entry-alignment,
- flags ~(PIN_GLOBAL | PIN_MAPPABLE));
+ flags ~PIN_MAPPABLE);
if (ret)
return ret;
--
2.1.0
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