diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-11-16 19:07:04 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-11-18 11:15:59 +0000 |
| commit | 5b8c8aec8e8ef999c8b3eaa699e46ef25550d118 (patch) | |
| tree | dce0a2b7b18b8c59bb9c59651d7b0adbc1ee32f2 /drivers/gpu/drm/i915/i915_gem_execbuffer.c | |
| parent | d806e6828be36ce21173340ba3d0078345bd12bc (diff) | |
drm/i915: Move frontbuffer CS write tracking from ggtt vma to object
I tried to avoid having to track the write for every VMA by only
tracking writes to the ggtt. However, for the purposes of frontbuffer
tracking this is insufficient as we need to invalidate around writes not
just to the the ggtt but all aliased ppgtt views of the framebuffer. By
moving the critical section to the object and only doing so for
framebuffer writes we can reduce the tracking even further by only
watching framebuffers and not vma.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161116190704.5293-1-chris@chris-wilson.co.uk
Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_execbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_execbuffer.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index e4efffe02fa8..097d9d8c2315 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -1276,9 +1276,8 @@ void i915_vma_move_to_active(struct i915_vma *vma, list_move_tail(&vma->vm_link, &vma->vm->active_list); if (flags & EXEC_OBJECT_WRITE) { - i915_gem_active_set(&vma->last_write, req); - - intel_fb_obj_invalidate(obj, ORIGIN_CS); + if (intel_fb_obj_invalidate(obj, ORIGIN_CS)) + i915_gem_active_set(&obj->frontbuffer_write, req); /* update for the implicit flush after a batch */ obj->base.write_domain &= ~I915_GEM_GPU_DOMAINS; |