freedreno/a3xx: fix hang w/ large render targets and small gmem

Possibly other gen's have a similar limit.  Fixes glmark2 -b shadow
with larger resolutions on devices with small gmem (for example,
fullscreen 1080p on 8x16/db410c).

Cc: mesa-stable@lists.freedesktop.org
Signed-off-by: Rob Clark <robdclark@gmail.com>
(cherry picked from commit 6050d5bf3d)

src/gallium/drivers/freedreno/a3xx/fd3_gmem.c

@@ -149,6 +149,9 @@ use_hw_binning(struct fd_batch *batch)
 	if (gmem->minx || gmem->miny)
 		return false;
 
+	if ((gmem->maxpw * gmem->maxph) > 32)
+		return false;
+
 	return fd_binning_enabled && ((gmem->nbins_x * gmem->nbins_y) > 2);
 }
 

src/gallium/drivers/freedreno/freedreno_gmem.c

@@ -219,6 +219,9 @@ calculate_tiles(struct fd_batch *batch)
 			div_round_up(nbins_x, tpp_x)) > 8)
 		tpp_x += 1;
 
+	gmem->maxpw = tpp_x;
+	gmem->maxph = tpp_y;
+
 	/* configure pipes: */
 	xoff = yoff = 0;
 	for (i = 0; i < ARRAY_SIZE(ctx->pipe); i++) {

src/gallium/drivers/freedreno/freedreno_gmem.h

@@ -57,6 +57,7 @@ struct fd_gmem_stateobj {
 	uint16_t bin_w, nbins_x;
 	uint16_t minx, miny;
 	uint16_t width, height;
+	uint16_t maxpw, maxph;   /* maximum pipe width/height */
 };
 
 struct fd_batch;