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radeonsi: Reinitialize all descriptors in CE preamble.
This fixes a problem with the CE preamble and restoring only stuff in the
preamble when needed.
To illustrate suppose we have two graphics IB's 1 and 2, which are submitted in
that order. Furthermore suppose IB 1 does not use CE ram, but IB 2 does, and we
have a context switch at the start of IB 1, but not between IB 1 and IB 2.
The old code put the CE RAM loads in the preamble of IB 2. As the preamble of
IB 1 does not have the loads and the preamble of IB 2 does not get executed, the
old values are not load into CE RAM.
Fix this by always restoring the entire CE RAM.
v2: - Just load all descriptor set buffers instead of load and store the entire
CE RAM.
- Leave the ce_ram_dirty tracking in place for the non-preamble case.
v3: - Fixed parameter alignment.
- Rebased to master (Nicolai's descriptor series).
Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>