radeon/winsys: add cs_check_space

Reviewed-by: Marek Olšák <[email protected]>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
index c8ce34de34d..639ffb5ce7c 100644
--- a/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
+++ b/src/gallium/winsys/amdgpu/drm/amdgpu_cs.c
@@ -603,6 +603,12 @@ static boolean amdgpu_cs_validate(struct radeon_winsys_cs *rcs)
    return TRUE;
 }
 
+static bool amdgpu_cs_check_space(struct radeon_winsys_cs *rcs, unsigned dw)
+{
+   assert(rcs->cdw <= rcs->max_dw);
+   return rcs->max_dw - rcs->cdw >= dw;
+}
+
 static boolean amdgpu_cs_memory_below_limit(struct radeon_winsys_cs *rcs, uint64_t vram, uint64_t gtt)
 {
    struct amdgpu_cs *cs = amdgpu_cs(rcs);
@@ -941,6 +947,7 @@ void amdgpu_cs_init_functions(struct amdgpu_winsys *ws)
    ws->base.cs_add_buffer = amdgpu_cs_add_buffer;
    ws->base.cs_lookup_buffer = amdgpu_cs_lookup_buffer;
    ws->base.cs_validate = amdgpu_cs_validate;
+   ws->base.cs_check_space = amdgpu_cs_check_space;
    ws->base.cs_memory_below_limit = amdgpu_cs_memory_below_limit;
    ws->base.cs_query_memory_usage = amdgpu_cs_query_memory_usage;
    ws->base.cs_get_buffer_list = amdgpu_cs_get_buffer_list;