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>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/gallium/drivers/radeonsi/si_state.h b/src/gallium/drivers/radeonsi/si_state.h
index a4a58bb..ab34fec 100644
--- a/src/gallium/drivers/radeonsi/si_state.h
+++ b/src/gallium/drivers/radeonsi/si_state.h
@@ -276,6 +276,7 @@ struct si_buffer_resources {
 	} while(0)
 
 /* si_descriptors.c */
+void si_ce_reinitialize_all_descriptors(struct si_context *sctx);
 void si_ce_enable_loads(struct radeon_winsys_cs *ib);
 void si_set_mutable_tex_desc_fields(struct r600_texture *tex,
 				    const struct radeon_surf_level *base_level_info,