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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-09 19:16:09 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-10 11:12:20 +0300 |
| commit | 5b30694b474d00f8588fa367f9562d8f2e4c7075 (patch) | |
| tree | bddd98d76a0ad390e2e592dce15d54db7260a64d /drivers/gpu/drm/i915/i915_gem_tiling.c | |
| parent | 6649a0b6501d78042fd0fffaaefab1aeee27e75d (diff) | |
| download | linux-5b30694b474d00f8588fa367f9562d8f2e4c7075.tar.xz | |
drm/i915: Align GGTT sizes to a fence tile row
Ensure the view occupies the full tile row so that reads/writes into the
VMA do not escape (via fenced detiling) into neighbouring objects - we
will pad the object with scratch pages to satisfy the fence. This
applies the lazy-tiling we employed on gen2/3 to gen4+.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170109161613.11881-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_tiling.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_tiling.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c index 62ad375de6ca..51b8d71876b7 100644 --- a/drivers/gpu/drm/i915/i915_gem_tiling.c +++ b/drivers/gpu/drm/i915/i915_gem_tiling.c @@ -117,7 +117,8 @@ i915_tiling_ok(struct drm_i915_private *dev_priv, return true; } -static bool i915_vma_fence_prepare(struct i915_vma *vma, int tiling_mode) +static bool i915_vma_fence_prepare(struct i915_vma *vma, + int tiling_mode, unsigned int stride) { struct drm_i915_private *dev_priv = vma->vm->i915; u32 size; @@ -133,7 +134,7 @@ static bool i915_vma_fence_prepare(struct i915_vma *vma, int tiling_mode) return false; } - size = i915_gem_get_ggtt_size(dev_priv, vma->size, tiling_mode); + size = i915_gem_get_ggtt_size(dev_priv, vma->size, tiling_mode, stride); if (vma->node.size < size) return false; @@ -145,20 +146,17 @@ static bool i915_vma_fence_prepare(struct i915_vma *vma, int tiling_mode) /* Make the current GTT allocation valid for the change in tiling. */ static int -i915_gem_object_fence_prepare(struct drm_i915_gem_object *obj, int tiling_mode) +i915_gem_object_fence_prepare(struct drm_i915_gem_object *obj, + int tiling_mode, unsigned int stride) { - struct drm_i915_private *dev_priv = to_i915(obj->base.dev); struct i915_vma *vma; int ret; if (tiling_mode == I915_TILING_NONE) return 0; - if (INTEL_GEN(dev_priv) >= 4) - return 0; - list_for_each_entry(vma, &obj->vma_list, obj_link) { - if (i915_vma_fence_prepare(vma, tiling_mode)) + if (i915_vma_fence_prepare(vma, tiling_mode, stride)) continue; ret = i915_vma_unbind(vma); @@ -255,7 +253,9 @@ i915_gem_set_tiling(struct drm_device *dev, void *data, * whilst executing a fenced command for an untiled object. */ - err = i915_gem_object_fence_prepare(obj, args->tiling_mode); + err = i915_gem_object_fence_prepare(obj, + args->tiling_mode, + args->stride); if (!err) { struct i915_vma *vma; |