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-rw-r--r--src/gallium/winsys/radeon/drm/radeon_drm_winsys.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
index c7ceee2..70f061c 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_winsys.c
@@ -373,7 +373,9 @@ static bool do_winsys_init(struct radeon_drm_winsys *ws)
ws->info.gart_size = gem_info.gart_size;
ws->info.vram_size = gem_info.vram_size;
- ws->info.max_alloc_size = MAX2(ws->info.vram_size, ws->info.gart_size);
+ /* Radeon allocates all buffers as contigous, which makes large allocations
+ * unlikely to succeed. */
+ ws->info.max_alloc_size = MAX2(ws->info.vram_size, ws->info.gart_size) * 0.7;
if (ws->info.drm_minor < 40)
ws->info.max_alloc_size = MIN2(ws->info.max_alloc_size, 256*1024*1024);