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Differential D20486 Diff 61471 sys/dev/drm2/ttm/ttm_bo_vm.c

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sys/dev/drm2/ttm/ttm_bo_vm.c

Show First 20 Lines • Show All 108 Lines • ▼ Show 20 Linesttm_bo_vm_fault(vm_object_t vm_obj, vm_ooffset_t offset,
vm_page_t m, m1; vm_page_t m, m1;
int ret; int ret;
int retval = VM_PAGER_OK; int retval = VM_PAGER_OK;
struct ttm_mem_type_manager *man = struct ttm_mem_type_manager *man =
&bdev->man[bo->mem.mem_type]; &bdev->man[bo->mem.mem_type];
vm_object_pip_add(vm_obj, 1); vm_object_pip_add(vm_obj, 1);
if (*mres != NULL) { if (*mres != NULL) {
vm_page_lock(*mres);
(void)vm_page_remove(*mres); (void)vm_page_remove(*mres);
vm_page_unlock(*mres);
} }
retry: retry:
VM_OBJECT_WUNLOCK(vm_obj); VM_OBJECT_WUNLOCK(vm_obj);
m = NULL; m = NULL;
reserve: reserve:
ret = ttm_bo_reserve(bo, false, false, false, 0); ret = ttm_bo_reserve(bo, false, false, false, 0);
if (unlikely(ret != 0)) { if (unlikely(ret != 0)) {
▲ Show 20 Lines • Show All 128 Lines • ▼ Show 20 Lines if (m1 == NULL) {
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));
} }
m->valid = VM_PAGE_BITS_ALL; m->valid = VM_PAGE_BITS_ALL;
vm_page_xbusy(m); vm_page_xbusy(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_lock(*mres);
vm_page_free(*mres); vm_page_free(*mres);
vm_page_unlock(*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);
vm_object_pip_wakeup(vm_obj); vm_object_pip_wakeup(vm_obj);
▲ Show 20 Lines • Show All 289 Lines • Show Last 20 Lines