From: Daniel Vetter Date: Wed, 14 Oct 2015 14:51:06 +0000 (+0200) Subject: drm/i915: Fix i915_ggtt_view_equal to handle rotation correctly X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ce7f17285639;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git drm/i915: Fix i915_ggtt_view_equal to handle rotation correctly The rotated view depends upon the rotation paramters, but thus far we didn't bother checking for those. This seems to have been an issue ever since this was introduce in commit fe14d5f4e5468c5b80a24f1a64abcbe116143670 Author: Tvrtko Ursulin Date: Wed Dec 10 17:27:58 2014 +0000 drm/i915: Infrastructure for supporting different GGTT views per object But userspace is allowed to reuse framebuffer backing storage with different framebuffers with different pixel formats/stride/whatever. And e.g. SNA indeed does this. Hence we must check for all the paramters to match, not just that it's rotated. v2: intel_plane_obj_offset also needs to construct the full view, to avoid fallout since they don't fully match. Cc: Tvrtko Ursulin Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1444834266-12689-3-git-send-email-daniel.vetter@ffwll.ch Reviewed-by: Tvrtko Ursulin Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index 310f212a321c..877c32c78a6a 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -553,7 +553,7 @@ i915_ggtt_view_equal(const struct i915_ggtt_view *a, if (a->type != b->type) return false; - if (a->type == I915_GGTT_VIEW_PARTIAL) + if (a->type != I915_GGTT_VIEW_NORMAL) return !memcmp(&a->params, &b->params, sizeof(a->params)); return true; } diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 4712cca76979..f6a66670bb1c 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2914,16 +2914,16 @@ u32 intel_plane_obj_offset(struct intel_plane *intel_plane, struct drm_i915_gem_object *obj, unsigned int plane) { - const struct i915_ggtt_view *view = &i915_ggtt_view_normal; + struct i915_ggtt_view view; struct i915_vma *vma; u64 offset; - if (intel_rotation_90_or_270(intel_plane->base.state->rotation)) - view = &i915_ggtt_view_rotated; + intel_fill_fb_ggtt_view(&view, intel_plane->base.fb, + intel_plane->base.state); - vma = i915_gem_obj_to_ggtt_view(obj, view); + vma = i915_gem_obj_to_ggtt_view(obj, &view); if (WARN(!vma, "ggtt vma for display object not found! (view=%u)\n", - view->type)) + view.type)) return -1; offset = vma->node.start;