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-rw-r--r--src/gallium/drivers/vc4/vc4_simulator.c24
1 files changed, 20 insertions, 4 deletions
diff --git a/src/gallium/drivers/vc4/vc4_simulator.c b/src/gallium/drivers/vc4/vc4_simulator.c
index fc3d554a3ec..827d6179c86 100644
--- a/src/gallium/drivers/vc4/vc4_simulator.c
+++ b/src/gallium/drivers/vc4/vc4_simulator.c
@@ -32,6 +32,8 @@
#include "vc4_simulator_validate.h"
#include "simpenrose/simpenrose.h"
+#define OVERFLOW_SIZE (32 * 1024 * 1024)
+
static struct drm_gem_cma_object *
vc4_wrap_bo_with_cma(struct drm_device *dev, struct vc4_bo *bo)
{
@@ -234,7 +236,7 @@ vc4_simulator_flush(struct vc4_context *vc4, struct drm_vc4_submit_cl *args,
struct exec_info exec;
struct drm_device local_dev = {
.vc4 = vc4,
- .simulator_mem_next = 0,
+ .simulator_mem_next = OVERFLOW_SIZE,
};
struct drm_device *dev = &local_dev;
int ret;
@@ -290,9 +292,23 @@ vc4_simulator_flush(struct vc4_context *vc4, struct drm_vc4_submit_cl *args,
void
vc4_simulator_init(struct vc4_screen *screen)
{
- simpenrose_init_hardware();
- screen->simulator_mem_base = simpenrose_get_mem_start();
- screen->simulator_mem_size = simpenrose_get_mem_size();
+ screen->simulator_mem_size = 256 * 1024 * 1024;
+ screen->simulator_mem_base = malloc(screen->simulator_mem_size);
+
+ /* We supply our own memory so that we can have more aperture
+ * available (256MB instead of simpenrose's default 64MB).
+ */
+ simpenrose_init_hardware_supply_mem(screen->simulator_mem_base,
+ screen->simulator_mem_size);
+
+ /* Carve out low memory for tile allocation overflow. The kernel
+ * should be automatically handling overflow memory setup on real
+ * hardware, but for simulation we just get one shot to set up enough
+ * overflow memory before execution. This overflow mem will be used
+ * up over the whole lifetime of simpenrose (not reused on each
+ * flush), so it had better be big.
+ */
+ simpenrose_supply_overflow_mem(0, OVERFLOW_SIZE);
}
#endif /* USE_VC4_SIMULATOR */