diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-01-28 10:23:53 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-01-28 16:24:13 +0000 |
| commit | 09d7e46b97c663c9b7f5245871a8f19114e9148d (patch) | |
| tree | dc83634a393aba66c727d33782f43c36abc87c45 /drivers/gpu/drm/i915/i915_gem_evict.c | |
| parent | 499197dc169601116e106cabe409bf39295893b3 (diff) | |
| download | kernel_replicant_linux-09d7e46b97c663c9b7f5245871a8f19114e9148d.tar.gz kernel_replicant_linux-09d7e46b97c663c9b7f5245871a8f19114e9148d.tar.bz2 kernel_replicant_linux-09d7e46b97c663c9b7f5245871a8f19114e9148d.zip | |
drm/i915: Pull VM lists under the VM mutex.
A starting point to counter the pervasive struct_mutex. For the goal of
avoiding (or at least blocking under them!) global locks during user
request submission, a simple but important step is being able to manage
each clients GTT separately. For which, we want to replace using the
struct_mutex as the guard for all things GTT/VM and switch instead to a
specific mutex inside i915_address_space.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190128102356.15037-2-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_evict.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_evict.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c index d76839670632..68d74c50ac39 100644 --- a/drivers/gpu/drm/i915/i915_gem_evict.c +++ b/drivers/gpu/drm/i915/i915_gem_evict.c @@ -430,6 +430,7 @@ int i915_gem_evict_vm(struct i915_address_space *vm) } INIT_LIST_HEAD(&eviction_list); + mutex_lock(&vm->mutex); list_for_each_entry(vma, &vm->bound_list, vm_link) { if (i915_vma_is_pinned(vma)) continue; @@ -437,6 +438,7 @@ int i915_gem_evict_vm(struct i915_address_space *vm) __i915_vma_pin(vma); list_add(&vma->evict_link, &eviction_list); } + mutex_unlock(&vm->mutex); ret = 0; list_for_each_entry_safe(vma, next, &eviction_list, evict_link) { |