fdo-mirrors/mesa
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/mesa/mesa.git synced 2026-05-05 13:58:04 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

gallium/radeon: Fix potential address space loss in radeon_bomgr_force_va().

Browse source 
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 12:10:02 +02:00 • committed by Michel Dänzer
parent 6d59b7f6dc
commit 1f455ef5bc
1 changed files with 13 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
src/gallium/winsys/radeon/drm/radeon_drm_bo.c
View file

@ -268,18 +268,25 @@ static void radeon_bomgr_force_va(struct radeon_bomgr *mgr, uint64_t va, uint64_
mgr->va_offset = va + size;
} else {
struct radeon_bo_va_hole *hole, *n;
uint64_t stmp, etmp;
uint64_t hole_end, va_end;
/* free all holes that fall into the range
* NOTE that we might lose virtual address space
/* Prune/free all holes that fall into the range
*/
LIST_FOR_EACH_ENTRY_SAFE(hole, n, &mgr->va_holes, list) {
stmp = hole->offset;
etmp = stmp + hole->size;
if (va >= stmp && va < etmp) {
hole_end = hole->offset + hole->size;
va_end = va + size;
if (hole->offset >= va_end || hole_end <= va)
continue;
if (hole->offset >= va && hole_end <= va_end) {
list_del(&hole->list);
FREE(hole);
continue;
}
if (hole->offset >= va)
hole->offset = va_end;
else
hole_end = va;
hole->size = hole_end - hole->offset;
}
}
pipe_mutex_unlock(mgr->bo_va_mutex);