etnaviv: query: correct max number of occlusion query samples

The real maximium for the occlusion query samples is much higher
than what the code currently claims to support as we always
allocate a full 4KB buffer to store the query results.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23557>

src/gallium/drivers/etnaviv/etnaviv_query_acc_occlusion.c

@@ -36,6 +36,8 @@
 #include "etnaviv_query_acc.h"
 #include "etnaviv_screen.h"
 
+#define MAX_OQ_SAMPLES 511 /* 4KB / 8Bytes/sample */
+
 /*
  * Occlusion Query:
  *
@@ -73,8 +75,8 @@ occlusion_resume(struct etna_acc_query *aq, struct etna_context *ctx)
       .flags = ETNA_RELOC_WRITE
    };
 
-   if (aq->samples > 63) {
-      aq->samples = 63;
+   if (aq->samples > MAX_OQ_SAMPLES) {
+      aq->samples = MAX_OQ_SAMPLES;
       BUG("samples overflow");
    }