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head/sys/dev/drm2/ttm/ttm_bo_vm.c
| Show First 20 Lines • Show All 231 Lines • ▼ Show 20 Lines | reserve: | ||||
| VM_OBJECT_WLOCK(vm_obj); | VM_OBJECT_WLOCK(vm_obj); | ||||
| if (vm_page_busy_acquire(m, VM_ALLOC_WAITFAIL) == 0) { | if (vm_page_busy_acquire(m, VM_ALLOC_WAITFAIL) == 0) { | ||||
| ttm_mem_io_unlock(man); | ttm_mem_io_unlock(man); | ||||
| ttm_bo_unreserve(bo); | ttm_bo_unreserve(bo); | ||||
| goto retry; | goto retry; | ||||
| } | } | ||||
| m1 = vm_page_lookup(vm_obj, OFF_TO_IDX(offset)); | m1 = vm_page_lookup(vm_obj, OFF_TO_IDX(offset)); | ||||
| /* XXX This looks like it should just be vm_page_replace? */ | |||||
| if (m1 == NULL) { | if (m1 == NULL) { | ||||
| if (vm_page_insert(m, vm_obj, OFF_TO_IDX(offset))) { | if (vm_page_insert(m, vm_obj, OFF_TO_IDX(offset))) { | ||||
| vm_page_xunbusy(m); | vm_page_xunbusy(m); | ||||
| VM_OBJECT_WUNLOCK(vm_obj); | VM_OBJECT_WUNLOCK(vm_obj); | ||||
| vm_wait(vm_obj); | vm_wait(vm_obj); | ||||
| VM_OBJECT_WLOCK(vm_obj); | VM_OBJECT_WLOCK(vm_obj); | ||||
| ttm_mem_io_unlock(man); | ttm_mem_io_unlock(man); | ||||
| ttm_bo_unreserve(bo); | ttm_bo_unreserve(bo); | ||||
| goto retry; | goto retry; | ||||
| } | } | ||||
| } else { | } else { | ||||
| KASSERT(m == m1, | KASSERT(m == m1, | ||||
| ("inconsistent insert bo %p m %p m1 %p offset %jx", | ("inconsistent insert bo %p m %p m1 %p offset %jx", | ||||
| bo, m, m1, (uintmax_t)offset)); | bo, m, m1, (uintmax_t)offset)); | ||||
| } | } | ||||
| vm_page_valid(m); | vm_page_valid(m); | ||||
| if (*mres != NULL) { | if (*mres != NULL) { | ||||
| KASSERT(*mres != m, ("losing %p %p", *mres, m)); | KASSERT(*mres != m, ("losing %p %p", *mres, m)); | ||||
| vm_page_xunbusy(*mres); | |||||
| vm_page_free(*mres); | vm_page_free(*mres); | ||||
| } | } | ||||
| *mres = m; | *mres = m; | ||||
| out_io_unlock1: | out_io_unlock1: | ||||
| ttm_mem_io_unlock(man); | ttm_mem_io_unlock(man); | ||||
| out_unlock1: | out_unlock1: | ||||
| ttm_bo_unreserve(bo); | ttm_bo_unreserve(bo); | ||||
| ▲ Show 20 Lines • Show All 290 Lines • Show Last 20 Lines | |||||