cab7ba00e2
Yuzu is running into a segfault because it writes the push descriptor
twice with 2 different layouts, but without a draw/dispatch in
between.
First vkCmdPushDescriptorSetKHR() writes descriptor 0 & 1 with a
uniform buffer. We toggle the 2 first bits of
anv_descriptor_set::generate_surface_states.
Second vkCmdPushDescriptorSetKHR() writes descriptor 0 with uniform
buffer and descriptor 1 with an image view. The first bit of
anv_descriptor_set::generate_surface_states stays, but the second bit
was already set before and it should now be off.
When we finally flush the push descriptor, we try to generate a
surface state for descriptor 1, but there is no valid buffer view for
it, we access an invalid pointer and segfault.
This fix resets the anv_descriptor_set::generate_surface_states when
the descriptor layout changes.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Fixes: b49b18f0b7 ("anv: reduce BT emissions & surface state writes with push descriptors")
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23156>
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