diff options
| author | Ariane van der Steldt <ariane@cvs.openbsd.org> | 2011-05-24 15:27:37 +0000 |
|---|---|---|
| committer | Ariane van der Steldt <ariane@cvs.openbsd.org> | 2011-05-24 15:27:37 +0000 |
| commit | 7bba91997a49a1b90aaf8f3cc262edbe355c7a92 (patch) | |
| tree | 7da632cfed9dd94efc9b0d8c66977bd71bfc81a2 /sys/dev/pci | |
| parent | 7fabffa3a5b326844134b3d5ff1443bc8bc9c2c5 (diff) | |
Reimplement uvm/uvm_map.
vmmap is designed to perform address space randomized allocations,
without letting fragmentation of the address space go through the roof.
Some highlights:
- kernel address space randomization
- proper implementation of guardpages
- roughly 10% system time reduction during kernel build
Tested by alot of people on tech@ and developers.
Theo's machines are still happy.
Diffstat (limited to 'sys/dev/pci')
| -rw-r--r-- | sys/dev/pci/drm/i915_drv.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sys/dev/pci/drm/i915_drv.c b/sys/dev/pci/drm/i915_drv.c index cb8d7069df4..bab8dcd0094 100644 --- a/sys/dev/pci/drm/i915_drv.c +++ b/sys/dev/pci/drm/i915_drv.c @@ -1413,10 +1413,9 @@ i915_gem_gtt_map_ioctl(struct drm_device *dev, void *data, * We give our reference from object_lookup to the mmap, so only * must free it in the case that the map fails. */ - addr = uvm_map_hint(curproc, VM_PROT_READ | VM_PROT_WRITE); - ret = uvm_map_p(&curproc->p_vmspace->vm_map, &addr, nsize, &obj->uobj, + ret = uvm_map(&curproc->p_vmspace->vm_map, &addr, nsize, &obj->uobj, offset, 0, UVM_MAPFLAG(UVM_PROT_RW, UVM_PROT_RW, - UVM_INH_SHARE, UVM_ADV_RANDOM, 0), curproc); + UVM_INH_SHARE, UVM_ADV_RANDOM, 0)); done: if (ret == 0) |