On Thu, May 17, 2018 at 09:25:18AM -0700, Dylan Baker wrote:
> Quoting Nanley Chery (2018-05-03 12:03:48)
> > Before this patch, if we failed to initialize an MCS buffer, we'd
> > end up in a state in which the miptree thinks it has an MCS buffer,
> > but doesn't. We also leaked the clear_color_bo if it existed.
> >
> > With this patch, we now free the miptree aux buffer resources and let
> > intel_miptree_alloc_mcs() know that the MCS buffer no longer exists.
> >
> > Cc: <mesa-sta...@lists.freedesktop.org>
> > ---
> > src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 14 +++++++-------
> > 1 file changed, 7 insertions(+), 7 deletions(-)
> >
> > diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> > b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> > index b9a564552df..377efae32c9 100644
> > --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> > +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
> > @@ -1658,7 +1658,7 @@ intel_miptree_copy_teximage(struct brw_context *brw,
> > intel_obj->needs_validate = true;
> > }
> >
> > -static void
> > +static bool
> > intel_miptree_init_mcs(struct brw_context *brw,
> > struct intel_mipmap_tree *mt,
> > int init_value)
> > @@ -1678,13 +1678,14 @@ intel_miptree_init_mcs(struct brw_context *brw,
> > void *map = brw_bo_map(brw, mt->aux_buf->bo, MAP_WRITE | MAP_RAW);
> > if (unlikely(map == NULL)) {
> > fprintf(stderr, "Failed to map mcs buffer into GTT\n");
> > - brw_bo_unreference(mt->aux_buf->bo);
> > - free(mt->aux_buf);
> > - return;
> > + intel_miptree_aux_buffer_free(mt->aux_buf);
> > + mt->aux_buf = NULL;
> > + return false;
> > }
> > void *data = map;
> > memset(data, init_value, mt->aux_buf->size);
> > brw_bo_unmap(mt->aux_buf->bo);
> > + return true;
> > }
> >
> > static struct intel_miptree_aux_buffer *
> > @@ -1764,15 +1765,14 @@ intel_miptree_alloc_mcs(struct brw_context *brw,
> > const uint32_t alloc_flags = 0;
> > mt->aux_buf = intel_alloc_aux_buffer(brw, "mcs-miptree",
> > &temp_mcs_surf, alloc_flags, mt);
> > - if (!mt->aux_buf) {
> > + if (!mt->aux_buf ||
> > + !intel_miptree_init_mcs(brw, mt, 0xFF)) {
> > free(aux_state);
> > return false;
> > }
> >
> > mt->aux_state = aux_state;
> >
> > - intel_miptree_init_mcs(brw, mt, 0xFF);
> > -
> > return true;
> > }
> >
> > --
> > 2.16.2
> >
> > _______________________________________________
> > mesa-stable mailing list
> > mesa-sta...@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/mesa-stable
>
>
> Hi Nanley,
>
> Neither this patch or the next one cleanly apply to the 18.1 branch (or, I
> assume, 18.0), it looks like this depends on
> af4e9295febe966ace7793e43ba35705521749e8, which was not CC'd to stable. I'm
> not
> sure how to resolve the rebase conflicts, what would you like to do?
>
Hi Dylan,
I'd like to cherry-pick af4e9295febe966ace7793e43ba35705521749e8 and
it's parent for 18.1. We can ignore 18.0. Sorry for not checking on this
in advance.
-Nanley
> Dylan
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