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Commit 6bda10d1 authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915: Completely disable fence pipelining. 



I'm still seeing tiling corruption of PutImage and CopyArea (I think)
under mutter on pnv, so obviously the pipelining logic is deeply flawed.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
parent 0cdab21f

drivers/gpu/drm/i915/i915_gem.c

+4 −2
Original line number Diff line number Diff line
@@ -2484,6 +2484,9 @@ i915_gem_object_get_fence(struct drm_i915_gem_object *obj, 
	struct drm_i915_fence_reg *reg;

	int ret;



	/* XXX disable pipelining. There are bugs. Shocking. */

	pipelined = NULL;



	/* Just update our place in the LRU if our fence is getting reused. */

	if (obj->fence_reg != I915_FENCE_REG_NONE) {

		reg = &dev_priv->fence_regs[obj->fence_reg];
@@ -2556,9 +2559,8 @@ i915_gem_object_get_fence(struct drm_i915_gem_object *obj, 
		if (old->tiling_mode)

			i915_gem_release_mmap(old);



		/* XXX The pipelined change over appears to be incoherent. */

		ret = i915_gem_object_flush_fence(old,

						  NULL, //pipelined,

						  pipelined,

						  interruptible);

		if (ret) {

			drm_gem_object_unreference(&old->base);