From 39d56b83a892fb149f44656a0fe079d1cbcca18a Mon Sep 17 00:00:00 2001 From: Matthew Auld Date: Wed, 29 May 2019 13:31:07 +0100 Subject: [PATCH] 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: Chris Wilson Signed-off-by: Matthew Auld Reviewed-by: Chris Wilson Signed-off-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/msgid/20190529123108.24422-1-matthew.auld@intel.com --- drivers/gpu/drm/i915/i915_gem_gtt.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 5b1a501c4159f..ca8a69e8b098f 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -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; } -- 2.39.5