freedreno/a4xx: clear cached fp when switching blit prog

For gmem restore (mem2gmem), we swap blit programs, in order to have a
different frag shader for depth vs color restore.  But we weren't
actually clearing the cached fp, so it would not actually change the
frag shader as expected.

Signed-off-by: Rob Clark <[email protected]>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/gallium/drivers/freedreno/a4xx/fd4_gmem.c b/src/gallium/drivers/freedreno/a4xx/fd4_gmem.c
index fce5d7a3930..890e71ead2c 100644
--- a/src/gallium/drivers/freedreno/a4xx/fd4_gmem.c
+++ b/src/gallium/drivers/freedreno/a4xx/fd4_gmem.c
@@ -396,12 +396,14 @@ fd4_emit_tile_mem2gmem(struct fd_context *ctx, struct fd_tile *tile)
 
 	if (fd_gmem_needs_restore(ctx, tile, FD_BUFFER_DEPTH | FD_BUFFER_STENCIL)) {
 		emit.prog = &ctx->blit_prog[0];
+		emit.fp = NULL;      /* frag shader changed so clear cache */
 		fd4_program_emit(ring, &emit, 1, &pfb->zsbuf);
 		emit_mem2gmem_surf(ctx, gmem->zsbuf_base, &pfb->zsbuf, 1, bin_w);
 	}
 
 	if (fd_gmem_needs_restore(ctx, tile, FD_BUFFER_COLOR)) {
 		emit.prog = &ctx->blit_prog[pfb->nr_cbufs - 1];
+		emit.fp = NULL;      /* frag shader changed so clear cache */
 		fd4_program_emit(ring, &emit, pfb->nr_cbufs, pfb->cbufs);
 		emit_mem2gmem_surf(ctx, gmem->cbuf_base, pfb->cbufs, pfb->nr_cbufs, bin_w);
 	}