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gallium/radeon: Fix losing holes when allocating virtual address space.

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If a hole exactly matches the allocated size plus alignment, we would fail to
preserve the alignment as a hole. This would result in never being able to use
the alignment area for an allocation again.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michel Dänzer
2012-04-26 11:44:11 +02:00
committed by Michel Dänzer
parent 206d07625c
commit f5fe81daea
1 changed files with 6 additions and 1 deletions
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src/gallium/winsys/radeon/drm/radeon_drm_bo.c
+6 -1
View File
@@ -221,7 +221,7 @@ static uint64_t radeon_bomgr_find_va(struct radeon_bomgr *mgr, uint64_t size, ui
pipe_mutex_unlock(mgr->bo_va_mutex); pipe_mutex_unlock(mgr->bo_va_mutex);
return offset; return offset;
} }
if ((hole->size - waste) >= size) { if ((hole->size - waste) > size) {
if (waste) { if (waste) {
n = CALLOC_STRUCT(radeon_bo_va_hole); n = CALLOC_STRUCT(radeon_bo_va_hole);
n->size = waste; n->size = waste;
@@ -233,6 +233,11 @@ static uint64_t radeon_bomgr_find_va(struct radeon_bomgr *mgr, uint64_t size, ui
pipe_mutex_unlock(mgr->bo_va_mutex); pipe_mutex_unlock(mgr->bo_va_mutex);
return offset; return offset;
} }
if ((hole->size - waste) == size) {
hole->size = waste;
pipe_mutex_unlock(mgr->bo_va_mutex);
return offset;
}
} }
offset = mgr->va_offset; offset = mgr->va_offset;