This will be useful to consolidate recursive code.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuopp...@linux.intel.com>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 2 ++
drivers/gpu/drm/i915/i915_gem_gtt.h | 1 +
2 files changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index abb2e3e4bbbc..4544af1d3a3c 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1598,6 +1598,7 @@ static struct i915_ppgtt *gen8_ppgtt_create(struct
drm_i915_private *i915)
return ERR_PTR(-ENOMEM);
ppgtt_init(ppgtt, &i915->gt);
+ ppgtt->vm.top = i915_vm_is_4lvl(&ppgtt->vm) ? 3 : 2;
/*
* From bdw, there is hw support for read-only pages in the PPGTT.
@@ -2084,6 +2085,7 @@ static struct i915_ppgtt *gen6_ppgtt_create(struct
drm_i915_private *i915)
return ERR_PTR(-ENOMEM);
ppgtt_init(&ppgtt->base, &i915->gt);
+ ppgtt->base.vm.top = 1;
ppgtt->base.vm.allocate_va_range = gen6_alloc_va_range;
ppgtt->base.vm.clear_range = gen6_ppgtt_clear_range;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h
b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 48bb8c5125e3..36162bb7561b 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -323,6 +323,7 @@ struct i915_address_space {
struct i915_page_dma scratch_pt;
struct i915_page_dma scratch_pd;
struct i915_page_dma scratch_pdp; /* GEN8+ & 48b PPGTT */
+ unsigned int top;
/**
* List of vma currently bound.
--
2.22.0
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