Mesa (master): freedreno/gmem: split out helper to calc # of bins

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Module: Mesa
Branch: master
Commit: 6aa3004d6049afdbbe85b9f807f5f9f840cb05c9
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=6aa3004d6049afdbbe85b9f807f5f9f840cb05c9

Author: Rob Clark <robdclark at chromium.org>
Date:   Sat May 23 12:42:00 2020 -0700

freedreno/gmem: split out helper to calc # of bins

Gets the `nbins_x`/`y` local vars out of the main layout function,
to prevent any confusion like what was fixed in the previous patch
from sneaking back in.

Signed-off-by: Rob Clark <robdclark at chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5189>

---

 src/gallium/drivers/freedreno/freedreno_gmem.c | 37 ++++++++++++++++----------
 1 file changed, 23 insertions(+), 14 deletions(-)

diff --git a/src/gallium/drivers/freedreno/freedreno_gmem.c b/src/gallium/drivers/freedreno/freedreno_gmem.c
index f9130b6b5c8..6119f564400 100644
--- a/src/gallium/drivers/freedreno/freedreno_gmem.c
+++ b/src/gallium/drivers/freedreno/freedreno_gmem.c
@@ -218,26 +218,16 @@ layout_gmem(struct gmem_key *key, uint32_t nbins_x, uint32_t nbins_y,
 	return total <= screen->gmemsize_bytes;
 }
 
-static struct fd_gmem_stateobj *
-gmem_stateobj_init(struct fd_screen *screen, struct gmem_key *key)
+static void
+calc_nbins(struct gmem_key *key, struct fd_gmem_stateobj *gmem)
 {
-	struct fd_gmem_stateobj *gmem =
-			rzalloc(screen->gmem_cache.ht, struct fd_gmem_stateobj);
-	pipe_reference_init(&gmem->reference, 1);
-	gmem->screen = screen;
-	gmem->key = key;
-	list_inithead(&gmem->node);
-
-	const unsigned npipes = screen->num_vsc_pipes;
+	struct fd_screen *screen = gmem->screen;
 	uint32_t nbins_x = 1, nbins_y = 1;
 	uint32_t max_width = bin_width(screen);
-	uint32_t i, j, t, xoff, yoff;
-	uint32_t tpp_x, tpp_y;
-	int tile_n[npipes];
 
 	if (fd_mesa_debug & FD_DBG_MSGS) {
 		debug_printf("binning input: cbuf cpp:");
-		for (i = 0; i < key->nr_cbufs; i++)
+		for (unsigned i = 0; i < key->nr_cbufs; i++)
 			debug_printf(" %d", key->cbuf_cpp[i]);
 		debug_printf(", zsbuf cpp: %d; %dx%d\n",
 				key->zsbuf_cpp[0], key->width, key->height);
@@ -276,6 +266,25 @@ gmem_stateobj_init(struct fd_screen *screen, struct gmem_key *key)
 
 	layout_gmem(key, nbins_x, nbins_y, gmem);
 
+}
+
+static struct fd_gmem_stateobj *
+gmem_stateobj_init(struct fd_screen *screen, struct gmem_key *key)
+{
+	struct fd_gmem_stateobj *gmem =
+			rzalloc(screen->gmem_cache.ht, struct fd_gmem_stateobj);
+	pipe_reference_init(&gmem->reference, 1);
+	gmem->screen = screen;
+	gmem->key = key;
+	list_inithead(&gmem->node);
+
+	const unsigned npipes = screen->num_vsc_pipes;
+	uint32_t i, j, t, xoff, yoff;
+	uint32_t tpp_x, tpp_y;
+	int tile_n[npipes];
+
+	calc_nbins(key, gmem);
+
 	DBG("using %d bins of size %dx%d", gmem->nbins_x * gmem->nbins_y,
 			gmem->bin_w, gmem->bin_h);