[Mesa-dev] [PATCH 3/6] winsys/amdgpu: make IBs use read-only memory

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

---
 src/gallium/winsys/amdgpu/drm/amdgpu_cs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
index 089a358..63cd632 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
@@ -642,20 +642,21 @@ static bool amdgpu_ib_new_buffer(struct amdgpu_winsys *ws, struct amdgpu_ib *ib,
       buffer_size = MAX2(buffer_size, 8 * 1024 * 4);
       break;
    default:
       unreachable("unhandled IB type");
    }
 
    pb = ws->base.buffer_create(&ws->base, buffer_size,
                                ws->info.gart_page_size,
                                RADEON_DOMAIN_GTT,
                                RADEON_FLAG_NO_INTERPROCESS_SHARING |
+                               RADEON_FLAG_READ_ONLY |
                                (ring_type == RING_GFX ||
                                 ring_type == RING_COMPUTE ||
                                 ring_type == RING_DMA ?
                                    RADEON_FLAG_GTT_WC : 0));
    if (!pb)
       return false;
 
    mapped = ws->base.buffer_map(pb, NULL, PIPE_TRANSFER_WRITE);
    if (!mapped) {
       pb_reference(&pb, NULL);
-- 
2.7.4