Commit 0a4a6e74 authored by Matthew Auld's avatar Matthew Auld Committed by Chris Wilson

drm/i915/gtt: grab wakeref in gen6_alloc_va_range

Some steps in gen6_alloc_va_range require the HW to be awake, so ideally
we should be grabbing the wakeref ourselves and not relying on the
caller already holding it for us.
Suggested-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarMatthew Auld <matthew.auld@intel.com>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190529123108.24422-1-matthew.auld@intel.com
parent 7f5f2280
......@@ -1749,10 +1749,13 @@ static int gen6_alloc_va_range(struct i915_address_space *vm,
{
struct gen6_hw_ppgtt *ppgtt = to_gen6_ppgtt(i915_vm_to_ppgtt(vm));
struct i915_page_table *pt;
intel_wakeref_t wakeref;
u64 from = start;
unsigned int pde;
bool flush = false;
wakeref = intel_runtime_pm_get(vm->i915);
gen6_for_each_pde(pt, &ppgtt->base.pd, start, length, pde) {
const unsigned int count = gen6_pte_count(start, length);
......@@ -1778,12 +1781,15 @@ static int gen6_alloc_va_range(struct i915_address_space *vm,
if (flush) {
mark_tlbs_dirty(&ppgtt->base);
gen6_ggtt_invalidate(ppgtt->base.vm.i915);
gen6_ggtt_invalidate(vm->i915);
}
intel_runtime_pm_put(vm->i915, wakeref);
return 0;
unwind_out:
intel_runtime_pm_put(vm->i915, wakeref);
gen6_ppgtt_clear_range(vm, from, start - from);
return -ENOMEM;
}
......
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