Mesa (master): radeon: Add comment to explain logic for freeing dma buffers .
Pauli Nieminen
suokko at kemper.freedesktop.org
Fri Aug 21 13:40:30 UTC 2009
Module: Mesa
Branch: master
Commit: 0c0cea250d6615bbd500ac0b61b5d34bc61711cf
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=0c0cea250d6615bbd500ac0b61b5d34bc61711cf
Author: Pauli Nieminen <suokkos at gmail.com>
Date: Thu Aug 20 18:57:35 2009 +0300
radeon: Add comment to explain logic for freeing dma buffers.
---
src/mesa/drivers/dri/radeon/radeon_dma.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/radeon/radeon_dma.c b/src/mesa/drivers/dri/radeon/radeon_dma.c
index 40082d0..7e6b74a 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);
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