Mesa (master): freedreno: add env var to override GMEM size

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Module: Mesa
Branch: master
Commit: 688ca541e7bc0f5791afe0bc3f2fd2692634b281
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=688ca541e7bc0f5791afe0bc3f2fd2692634b281

Author: Rob Clark <robdclark at chromium.org>
Date:   Tue Aug 25 10:03:31 2020 -0700

freedreno: add env var to override GMEM size

Sometimes it is useful to force a smaller size while debugging.

Signed-off-by: Rob Clark <robdclark at chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6461>

---

 src/gallium/drivers/freedreno/freedreno_screen.c | 2 +-
 src/gallium/drivers/freedreno/freedreno_screen.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c
index 90704de8cd7..f2b8eee9531 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -879,7 +879,7 @@ fd_screen_create(struct fd_device *dev, struct renderonly *ro)
 		DBG("could not get GMEM size");
 		goto fail;
 	}
-	screen->gmemsize_bytes = val;
+	screen->gmemsize_bytes = env_var_as_unsigned("FD_MESA_GMEM", val);
 
 	if (fd_device_version(dev) >= FD_VERSION_GMEM_BASE) {
 		fd_pipe_get_param(screen->pipe, FD_GMEM_BASE, &screen->gmem_base);
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.h b/src/gallium/drivers/freedreno/freedreno_screen.h
index 4707496ef06..2a657cc42d9 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.h
+++ b/src/gallium/drivers/freedreno/freedreno_screen.h
@@ -32,6 +32,7 @@
 #include "perfcntrs/freedreno_perfcntr.h"
 
 #include "pipe/p_screen.h"
+#include "util/debug.h"
 #include "util/u_memory.h"
 #include "util/slab.h"
 #include "util/simple_mtx.h"