radeonsi: put image, fmask, and sampler descriptors into one array

The texture slot is expanded to 16 dwords containing 2 descriptors.
Those can be:
- Image and fmask, or
- Image and sampler state

By carefully choosing the locations, we can put all three into one slot,
with the fmask and sampler state being mutually exclusive.

This improves shaders in 2 ways:
- 2 user SGPRs are unused, shaders can use them as temporary registers now
- each pair of descriptors is always on the same cache line

v2: cosmetic changes: add back v8i32, don't load a sampler state & fmask
    at the same time

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gallium/drivers/radeonsi/si_blit.c b/src/gallium/drivers/radeonsi/si_blit.c
index a93887ec27..115877060b 100644
--- a/src/gallium/drivers/radeonsi/si_blit.c
+++ b/src/gallium/drivers/radeonsi/si_blit.c
@@ -80,7 +80,7 @@ static void si_blitter_begin(struct pipe_context *ctx, enum si_blitter_op op)
 	if (op & SI_SAVE_TEXTURES) {
 		util_blitter_save_fragment_sampler_states(
 			sctx->blitter, 2,
-			sctx->samplers[PIPE_SHADER_FRAGMENT].states.saved_states);
+			sctx->samplers[PIPE_SHADER_FRAGMENT].views.sampler_states);
 
 		util_blitter_save_fragment_sampler_views(sctx->blitter, 2,
 			sctx->samplers[PIPE_SHADER_FRAGMENT].views.views);