From 0c0cea250d6615bbd500ac0b61b5d34bc61711cf Mon Sep 17 00:00:00 2001 From: Pauli Nieminen Date: Thu, 20 Aug 2009 18:57:35 +0300 Subject: radeon: Add comment to explain logic for freeing dma buffers. --- src/mesa/drivers/dri/radeon/radeon_dma.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/mesa/drivers/dri/radeon/radeon_dma.c b/src/mesa/drivers/dri/radeon/radeon_dma.c index 40082d0798f..7e6b74add86 100644 --- a/src/mesa/drivers/dri/radeon/radeon_dma.c +++ b/src/mesa/drivers/dri/radeon/radeon_dma.c @@ -204,6 +204,9 @@ again_alloc: } insert_at_head(&rmesa->dma.reserved, dma_bo); } else { + /* We push and pop buffers from end of list so we can keep + counter on unused buffers for later freeing them from + begin of list */ struct radeon_dma_bo *dma_bo = last_elem(&rmesa->dma.free); assert(dma_bo->bo->cref == 1); remove_from_list(dma_bo); -- cgit v1.2.3