[PATCH 1/3] drm/i915: Make 48bit full ppgtt configuration generic (v10)

[Bob Paauwe <bob.j.paauwe@intel.com>]

48 bit ppgtt device configuration is really just extended address
range full ppgtt and may actually be something other than 48 bits.

Change HAS_FULL_48BIT_PPGTT() to HAS_4LVL_PPGTT() to better
describe that a 4 level walk table extended range PPGTT is being
used. Add a new device info field that specifies the number of
bits to prepare for cases where the range is not 32 or 48 bits.
Also rename other functions and comments from 48bit to 4-level.

Making use of the device info address range for gen6 highlights
simularities in the gen6 and gen8 code paths so move the common
code in to a common function.

v2: Keep HAS_FULL_PPGTT() unchanged (Chris)
v3: Simplify condition in gen8_ppgtt_create() (Chris)
    Remove unnecessary line coninuations (Bob)
    Rename functions/defines/comments from 48bit to 4lvl (Rodrigo/Bob)
v4: Rename FULL_4LVL_PPGTT to simply 4LVL_PPGTT (Rodrigo)
    Be explised in setting vm.total to 1ULL << 32 (Rodrigo)
    Gen 7 is 31 bits, not 32 (Chris)
v5: Mock device is 64b(63b) not 48b (Chris)
v6: Rebase to latest drm-tip (Bob)
v7: Combine common code for gen6/gen8 ppgtt create (Chris)
    Improve comment on device info field (Chris)
v8: gvt is actually full ppgtt (both 3-lvl and 4-lvl) so name cap
    define appropriately (Chris)
v9: rebase on latest
v10: fix missed vgpu change of FULL_48BIT to FULL in CAPS define (Bob)

Signed-off-by: Bob Paauwe <bob.j.paauwe@intel.com>
CC: Rodrigo Vivi <rodrigo.vivi@intel.com>
CC: Michel Thierry <michel.thierry@intel.com>
CC: Chris Wilson <chris@chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gvt/vgpu.c               |   2 +-
 drivers/gpu/drm/i915/i915_drv.c               |   2 +-
 drivers/gpu/drm/i915/i915_drv.h               |   2 +-
 drivers/gpu/drm/i915/i915_gem_context.c       |   2 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c           | 130 ++++++++----------
 drivers/gpu/drm/i915/i915_gem_gtt.h           |   4 +-
 drivers/gpu/drm/i915/i915_pci.c               |   6 +
 drivers/gpu/drm/i915/i915_pvinfo.h            |   2 +-
 drivers/gpu/drm/i915/i915_vgpu.c              |   4 +-
 drivers/gpu/drm/i915/i915_vgpu.h              |   2 +-
 drivers/gpu/drm/i915/intel_device_info.c      |   1 +
 drivers/gpu/drm/i915/intel_device_info.h      |   3 +
 drivers/gpu/drm/i915/intel_lrc.c              |   6 +-
 drivers/gpu/drm/i915/selftests/huge_pages.c   |   8 +-
 .../gpu/drm/i915/selftests/mock_gem_device.c  |   2 +
 15 files changed, 85 insertions(+), 91 deletions(-)

diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c
index c628be05fbfe..fb0f46bec9e6 100644
--- a/drivers/gpu/drm/i915/gvt/vgpu.c
+++ b/drivers/gpu/drm/i915/gvt/vgpu.c
@@ -44,7 +44,7 @@ void populate_pvinfo_page(struct intel_vgpu *vgpu)
 	vgpu_vreg_t(vgpu, vgtif_reg(display_ready)) = 0;
 	vgpu_vreg_t(vgpu, vgtif_reg(vgt_id)) = vgpu->id;
 
-	vgpu_vreg_t(vgpu, vgtif_reg(vgt_caps)) = VGT_CAPS_FULL_48BIT_PPGTT;
+	vgpu_vreg_t(vgpu, vgtif_reg(vgt_caps)) = VGT_CAPS_FULL_PPGTT;
 	vgpu_vreg_t(vgpu, vgtif_reg(vgt_caps)) |= VGT_CAPS_HWSP_EMULATION;
 	vgpu_vreg_t(vgpu, vgtif_reg(vgt_caps)) |= VGT_CAPS_HUGE_GTT;
 
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index acb516308262..05fe8e2852bd 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1367,7 +1367,7 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv)
 
 	if (HAS_PPGTT(dev_priv)) {
 		if (intel_vgpu_active(dev_priv) &&
-		    !intel_vgpu_has_full_48bit_ppgtt(dev_priv)) {
+		    !intel_vgpu_has_4lvl_ppgtt(dev_priv)) {
 			i915_report_error(dev_priv,
 					  "incompatible vGPU found, support for isolated ppGTT required\n");
 			return -ENXIO;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 0c8438de3c1b..97649c5614c9 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2587,7 +2587,7 @@ intel_info(const struct drm_i915_private *dev_priv)
 	(INTEL_PPGTT(dev_priv) != INTEL_PPGTT_NONE)
 #define HAS_FULL_PPGTT(dev_priv) \
 	(INTEL_PPGTT(dev_priv) >= INTEL_PPGTT_FULL)
-#define HAS_FULL_48BIT_PPGTT(dev_priv)	\
+#define HAS_4LVL_PPGTT(dev_priv)	\
 	(INTEL_PPGTT(dev_priv) >= INTEL_PPGTT_FULL_4LVL)
 
 #define HAS_PAGE_SIZES(dev_priv, sizes) ({ \
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index b97963db0287..1853e82cebd5 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -307,7 +307,7 @@ static u32 default_desc_template(const struct drm_i915_private *i915,
 	desc = GEN8_CTX_VALID | GEN8_CTX_PRIVILEGE;
 
 	address_mode = INTEL_LEGACY_32B_CONTEXT;
-	if (ppgtt && i915_vm_is_48bit(&ppgtt->vm))
+	if (ppgtt && i915_vm_is_4lvl(&ppgtt->vm))
 		address_mode = INTEL_LEGACY_64B_CONTEXT;
 	desc |= address_mode << GEN8_CTX_ADDRESSING_MODE_SHIFT;
 
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index a98c29147d5e..b4d5f28474a2 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -579,13 +579,13 @@ setup_scratch_page(struct i915_address_space *vm, gfp_t gfp)
 	 * page-table operating in 64K mode must point to a properly aligned 64K
 	 * region, including any PTEs which happen to point to scratch.
 	 *
-	 * This is only relevant for the 48b PPGTT where we support
+	 * This is only relevant for the 4-level PPGTT where we support
 	 * huge-gtt-pages, see also i915_vma_insert(). However, as we share the
 	 * scratch (read-only) between all vm, we create one 64k scratch page
 	 * for all.
 	 */
 	size = I915_GTT_PAGE_SIZE_4K;
-	if (i915_vm_is_48bit(vm) &&
+	if (i915_vm_is_4lvl(vm) &&
 	    HAS_PAGE_SIZES(vm->i915, I915_GTT_PAGE_SIZE_64K)) {
 		size = I915_GTT_PAGE_SIZE_64K;
 		gfp |= __GFP_NOWARN;
@@ -729,7 +729,7 @@ static void __pdp_fini(struct i915_page_directory_pointer *pdp)
 
 static inline bool use_4lvl(const struct i915_address_space *vm)
 {
-	return i915_vm_is_48bit(vm);
+	return i915_vm_is_4lvl(vm);
 }
 
 static struct i915_page_directory_pointer *
@@ -1607,38 +1607,14 @@ static int gen8_preallocate_top_level_pdp(struct i915_hw_ppgtt *ppgtt)
  * space.
  *
  */
-static struct i915_hw_ppgtt *gen8_ppgtt_create(struct drm_i915_private *i915)
+static int gen8_ppgtt_create(struct i915_hw_ppgtt *ppgtt)
 {
-	struct i915_hw_ppgtt *ppgtt;
+	struct drm_i915_private *i915 = ppgtt->vm.i915;
 	int err;
 
-	ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL);
-	if (!ppgtt)
-		return ERR_PTR(-ENOMEM);
-
-	kref_init(&ppgtt->ref);
-
-	ppgtt->vm.i915 = i915;
-	ppgtt->vm.dma = &i915->drm.pdev->dev;
-
-	ppgtt->vm.total = HAS_FULL_48BIT_PPGTT(i915) ?
-		1ULL << 48 :
-		1ULL << 32;
-
-	/* From bdw, there is support for read-only pages in the PPGTT. */
-	ppgtt->vm.has_read_only = true;
-
-	i915_address_space_init(&ppgtt->vm, i915);
-
-	/* There are only few exceptions for gen >=6. chv and bxt.
-	 * And we are not sure about the latter so play safe for now.
-	 */
-	if (IS_CHERRYVIEW(i915) || IS_BROXTON(i915))
-		ppgtt->vm.pt_kmap_wc = true;
-
 	err = gen8_init_scratch(&ppgtt->vm);
 	if (err)
-		goto err_free;
+		return err;
 
 	if (use_4lvl(&ppgtt->vm)) {
 		err = setup_px(&ppgtt->vm, &ppgtt->pml4);
@@ -1662,7 +1638,6 @@ static struct i915_hw_ppgtt *gen8_ppgtt_create(struct drm_i915_private *i915)
 				goto err_scratch;
 			}
 		}
-
 		ppgtt->vm.allocate_va_range = gen8_ppgtt_alloc_3lvl;
 		ppgtt->vm.insert_entries = gen8_ppgtt_insert_3lvl;
 		ppgtt->vm.clear_range = gen8_ppgtt_clear_3lvl;
@@ -1674,18 +1649,11 @@ static struct i915_hw_ppgtt *gen8_ppgtt_create(struct drm_i915_private *i915)
 	ppgtt->vm.cleanup = gen8_ppgtt_cleanup;
 	ppgtt->debug_dump = gen8_dump_ppgtt;
 
-	ppgtt->vm.vma_ops.bind_vma    = ppgtt_bind_vma;
-	ppgtt->vm.vma_ops.unbind_vma  = ppgtt_unbind_vma;
-	ppgtt->vm.vma_ops.set_pages   = ppgtt_set_pages;
-	ppgtt->vm.vma_ops.clear_pages = clear_pages;
-
-	return ppgtt;
+	return 0;
 
 err_scratch:
 	gen8_free_scratch(&ppgtt->vm);
-err_free:
-	kfree(ppgtt);
-	return ERR_PTR(err);
+	return err;
 }
 
 static void gen6_dump_ppgtt(struct i915_hw_ppgtt *base, struct seq_file *m)
@@ -2106,55 +2074,31 @@ void gen6_ppgtt_unpin(struct i915_hw_ppgtt *base)
 	i915_vma_unpin(ppgtt->vma);
 }
 
-static struct i915_hw_ppgtt *gen6_ppgtt_create(struct drm_i915_private *i915)
+static int gen6_ppgtt_create(struct gen6_hw_ppgtt *ppgtt,
+			     struct i915_ggtt * const ggtt)
 {
-	struct i915_ggtt * const ggtt = &i915->ggtt;
-	struct gen6_hw_ppgtt *ppgtt;
 	int err;
 
-	ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL);
-	if (!ppgtt)
-		return ERR_PTR(-ENOMEM);
-
-	kref_init(&ppgtt->base.ref);
-
-	ppgtt->base.vm.i915 = i915;
-	ppgtt->base.vm.dma = &i915->drm.pdev->dev;
-
-	ppgtt->base.vm.total = I915_PDES * GEN6_PTES * I915_GTT_PAGE_SIZE;
-
-	i915_address_space_init(&ppgtt->base.vm, i915);
-
 	ppgtt->base.vm.allocate_va_range = gen6_alloc_va_range;
 	ppgtt->base.vm.clear_range = gen6_ppgtt_clear_range;
 	ppgtt->base.vm.insert_entries = gen6_ppgtt_insert_entries;
 	ppgtt->base.vm.cleanup = gen6_ppgtt_cleanup;
 	ppgtt->base.debug_dump = gen6_dump_ppgtt;
 
-	ppgtt->base.vm.vma_ops.bind_vma    = ppgtt_bind_vma;
-	ppgtt->base.vm.vma_ops.unbind_vma  = ppgtt_unbind_vma;
-	ppgtt->base.vm.vma_ops.set_pages   = ppgtt_set_pages;
-	ppgtt->base.vm.vma_ops.clear_pages = clear_pages;
-
 	ppgtt->base.vm.pte_encode = ggtt->vm.pte_encode;
 
 	err = gen6_ppgtt_init_scratch(ppgtt);
 	if (err)
-		goto err_free;
+		return err;
 
 	ppgtt->vma = pd_vma_create(ppgtt, GEN6_PD_SIZE);
 	if (IS_ERR(ppgtt->vma)) {
 		err = PTR_ERR(ppgtt->vma);
-		goto err_scratch;
+		gen6_ppgtt_free_scratch(&ppgtt->base.vm);
+		return err;
 	}
 
-	return &ppgtt->base;
-
-err_scratch:
-	gen6_ppgtt_free_scratch(&ppgtt->base.vm);
-err_free:
-	kfree(ppgtt);
-	return ERR_PTR(err);
+	return 0;
 }
 
 static void gtt_write_workarounds(struct drm_i915_private *dev_priv)
@@ -2206,10 +2150,48 @@ int i915_ppgtt_init_hw(struct drm_i915_private *dev_priv)
 static struct i915_hw_ppgtt *
 __hw_ppgtt_create(struct drm_i915_private *i915)
 {
-	if (INTEL_GEN(i915) < 8)
-		return gen6_ppgtt_create(i915);
-	else
-		return gen8_ppgtt_create(i915);
+	struct gen6_hw_ppgtt *ppgtt;
+	struct i915_address_space *vm;
+	int err;
+
+	ppgtt = kzalloc(sizeof(*ppgtt), GFP_KERNEL);
+	if (!ppgtt)
+		return ERR_PTR(-ENOMEM);
+
+	vm = &ppgtt->base.vm;
+
+	kref_init(&ppgtt->base.ref);
+
+	vm->i915 = i915;
+	vm->dma = &i915->drm.pdev->dev;
+
+	vm->total = BIT_ULL(i915->info.ppgtt_bits);
+
+	/* From bdw, there is support for read-only pages in the PPGTT.  */
+	vm->has_read_only = (INTEL_GEN(i915) < 8) ? false : true;
+
+	i915_address_space_init(vm, i915);
+
+	/* There are only few exceptions for gen >= 6. chv and bxt.
+	 * And we are not sure abou the latter so play safe for now.
+	 */
+	if (IS_CHERRYVIEW(i915) || IS_BROXTON(i915))
+		vm->pt_kmap_wc = true;
+
+	err = (INTEL_GEN(i915) < 8) ?  gen6_ppgtt_create(ppgtt, &i915->ggtt) :
+		gen8_ppgtt_create(&ppgtt->base);
+
+	if (err) {
+		kfree(ppgtt);
+		return ERR_PTR(err);
+	}
+
+	vm->vma_ops.bind_vma    = ppgtt_bind_vma;
+	vm->vma_ops.unbind_vma  = ppgtt_unbind_vma;
+	vm->vma_ops.set_pages   = ppgtt_set_pages;
+	vm->vma_ops.clear_pages = clear_pages;
+
+	return &ppgtt->base;
 }
 
 struct i915_hw_ppgtt *
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 4874da09a3c4..11d2c8b7f28e 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -365,7 +365,7 @@ struct i915_address_space {
 #define i915_is_ggtt(vm) ((vm)->is_ggtt)
 
 static inline bool
-i915_vm_is_48bit(const struct i915_address_space *vm)
+i915_vm_is_4lvl(const struct i915_address_space *vm)
 {
 	return (vm->total - 1) >> 32;
 }
@@ -507,7 +507,7 @@ static inline u32 gen6_pde_index(u32 addr)
 static inline unsigned int
 i915_pdpes_per_pdp(const struct i915_address_space *vm)
 {
-	if (i915_vm_is_48bit(vm))
+	if (i915_vm_is_4lvl(vm))
 		return GEN8_PML4ES_PER_PML4;
 
 	return GEN8_3LVL_PDPES;
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 4ccab8372dd4..d9686bc22f68 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -250,6 +250,7 @@ static const struct intel_device_info intel_ironlake_m_info = {
 	.has_rc6 = 1, \
 	.has_rc6p = 1, \
 	.ppgtt = INTEL_PPGTT_ALIASING, \
+	.ppgtt_bits = 31, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	GEN_DEFAULT_PAGE_SIZES, \
 	CURSOR_OFFSETS
@@ -295,6 +296,7 @@ static const struct intel_device_info intel_sandybridge_m_gt2_info = {
 	.has_rc6 = 1, \
 	.has_rc6p = 1, \
 	.ppgtt = INTEL_PPGTT_FULL, \
+	.ppgtt_bits = 31, \
 	GEN_DEFAULT_PIPEOFFSETS, \
 	GEN_DEFAULT_PAGE_SIZES, \
 	IVB_CURSOR_OFFSETS
@@ -348,6 +350,7 @@ static const struct intel_device_info intel_valleyview_info = {
 	.has_gmch_display = 1,
 	.has_hotplug = 1,
 	.ppgtt = INTEL_PPGTT_FULL,
+	.ppgtt_bits = 31,
 	.has_snoop = true,
 	.has_coherent_ggtt = false,
 	.ring_mask = RENDER_RING | BSD_RING | BLT_RING,
@@ -395,6 +398,7 @@ static const struct intel_device_info intel_haswell_gt3_info = {
 		      I915_GTT_PAGE_SIZE_2M, \
 	.has_logical_ring_contexts = 1, \
 	.ppgtt = INTEL_PPGTT_FULL_4LVL, \
+	.ppgtt_bits = 48, \
 	.has_64bit_reloc = 1, \
 	.has_reset_engine = 1
 
@@ -439,6 +443,7 @@ static const struct intel_device_info intel_cherryview_info = {
 	.has_logical_ring_contexts = 1,
 	.has_gmch_display = 1,
 	.ppgtt = INTEL_PPGTT_FULL,
+	.ppgtt_bits = 32,
 	.has_reset_engine = 1,
 	.has_snoop = true,
 	.has_coherent_ggtt = false,
@@ -515,6 +520,7 @@ static const struct intel_device_info intel_skylake_gt4_info = {
 	.has_logical_ring_preemption = 1, \
 	.has_guc = 1, \
 	.ppgtt = INTEL_PPGTT_FULL_4LVL, \
+	.ppgtt_bits = 48, \
 	.has_reset_engine = 1, \
 	.has_snoop = true, \
 	.has_coherent_ggtt = false, \
diff --git a/drivers/gpu/drm/i915/i915_pvinfo.h b/drivers/gpu/drm/i915/i915_pvinfo.h
index eeaa3d506d95..969e514916ab 100644
--- a/drivers/gpu/drm/i915/i915_pvinfo.h
+++ b/drivers/gpu/drm/i915/i915_pvinfo.h
@@ -52,7 +52,7 @@ enum vgt_g2v_type {
 /*
  * VGT capabilities type
  */
-#define VGT_CAPS_FULL_48BIT_PPGTT	BIT(2)
+#define VGT_CAPS_FULL_PPGTT		BIT(2)
 #define VGT_CAPS_HWSP_EMULATION		BIT(3)
 #define VGT_CAPS_HUGE_GTT		BIT(4)
 
diff --git a/drivers/gpu/drm/i915/i915_vgpu.c b/drivers/gpu/drm/i915/i915_vgpu.c
index 869cf4a3b6de..0ef78fef5422 100644
--- a/drivers/gpu/drm/i915/i915_vgpu.c
+++ b/drivers/gpu/drm/i915/i915_vgpu.c
@@ -81,9 +81,9 @@ void i915_check_vgpu(struct drm_i915_private *dev_priv)
 	DRM_INFO("Virtual GPU for Intel GVT-g detected.\n");
 }
 
-bool intel_vgpu_has_full_48bit_ppgtt(struct drm_i915_private *dev_priv)
+bool intel_vgpu_has_4lvl_ppgtt(struct drm_i915_private *dev_priv)
 {
-	return dev_priv->vgpu.caps & VGT_CAPS_FULL_48BIT_PPGTT;
+	return dev_priv->vgpu.caps & VGT_CAPS_FULL_PPGTT;
 }
 
 struct _balloon_info_ {
diff --git a/drivers/gpu/drm/i915/i915_vgpu.h b/drivers/gpu/drm/i915/i915_vgpu.h
index 551acc390046..5265b6357fba 100644
--- a/drivers/gpu/drm/i915/i915_vgpu.h
+++ b/drivers/gpu/drm/i915/i915_vgpu.h
@@ -28,7 +28,7 @@
 
 void i915_check_vgpu(struct drm_i915_private *dev_priv);
 
-bool intel_vgpu_has_full_48bit_ppgtt(struct drm_i915_private *dev_priv);
+bool intel_vgpu_has_4lvl_ppgtt(struct drm_i915_private *dev_priv);
 
 static inline bool
 intel_vgpu_has_hwsp_emulation(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 89ed3a84a4fa..d002f54269af 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -122,6 +122,7 @@ void intel_device_info_dump(const struct intel_device_info *info,
 		   info->gen);
 
 	intel_device_info_dump_flags(info, p);
+	drm_printf(p, "ppgttbits=0x%02x\n", info->ppgtt_bits);
 }
 
 void intel_device_info_dump_topology(const struct sseu_dev_info *sseu,
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 86ce1db1b33a..78df4de37665 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -192,6 +192,9 @@ struct intel_device_info {
 		u16 degamma_lut_size;
 		u16 gamma_lut_size;
 	} color;
+
+	/* Full PPGTT address range size */
+	int ppgtt_bits;
 };
 
 struct intel_driver_caps {
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 22b57b8926fc..540a4e344176 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -385,7 +385,7 @@ static u64 execlists_update_context(struct i915_request *rq)
 	 * PML4 is allocated during ppgtt init, so this is not needed
 	 * in 48-bit mode.
 	 */
-	if (!i915_vm_is_48bit(&ppgtt->vm))
+	if (!i915_vm_is_4lvl(&ppgtt->vm))
 		execlists_update_context_pdps(ppgtt, reg_state);
 
 	return ce->lrc_desc;
@@ -1866,7 +1866,7 @@ static int gen8_emit_bb_start(struct i915_request *rq,
 	 * not idle). PML4 is allocated during ppgtt init so this is
 	 * not needed in 48-bit.*/
 	if ((intel_engine_flag(rq->engine) & rq->gem_context->ppgtt->pd_dirty_rings) &&
-	    !i915_vm_is_48bit(&rq->gem_context->ppgtt->vm) &&
+	    !i915_vm_is_4lvl(&rq->gem_context->ppgtt->vm) &&
 	    !intel_vgpu_active(rq->i915)) {
 		ret = intel_logical_ring_emit_pdps(rq);
 		if (ret)
@@ -2538,7 +2538,7 @@ static void execlists_init_reg_state(u32 *regs,
 	CTX_REG(regs, CTX_PDP0_UDW, GEN8_RING_PDP_UDW(engine, 0), 0);
 	CTX_REG(regs, CTX_PDP0_LDW, GEN8_RING_PDP_LDW(engine, 0), 0);
 
-	if (i915_vm_is_48bit(&ctx->ppgtt->vm)) {
+	if (i915_vm_is_4lvl(&ctx->ppgtt->vm)) {
 		/* 64b PPGTT (48bit canonical)
 		 * PDP0_DESCRIPTOR contains the base address to PML4 and
 		 * other PDP Descriptors are ignored.
diff --git a/drivers/gpu/drm/i915/selftests/huge_pages.c b/drivers/gpu/drm/i915/selftests/huge_pages.c
index 26c065c8d2c0..8cc8ed75f941 100644
--- a/drivers/gpu/drm/i915/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/selftests/huge_pages.c
@@ -1450,8 +1450,8 @@ static int igt_ppgtt_pin_update(void *arg)
 	 * huge-gtt-pages.
 	 */
 
-	if (!HAS_FULL_48BIT_PPGTT(dev_priv)) {
-		pr_info("48b PPGTT not supported, skipping\n");
+	if (!HAS_4LVL_PPGTT(dev_priv)) {
+		pr_info("Extended range PPGTT not supported, skipping\n");
 		return 0;
 	}
 
@@ -1723,8 +1723,8 @@ int i915_gem_huge_page_mock_selftests(void)
 		goto out_unlock;
 	}
 
-	if (!i915_vm_is_48bit(&ppgtt->vm)) {
-		pr_err("failed to create 48b PPGTT\n");
+	if (!i915_vm_is_4lvl(&ppgtt->vm)) {
+		pr_err("failed to create extended PPGTT\n");
 		err = -EINVAL;
 		goto out_close;
 	}
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
index 43ed8b28aeaa..77155dd6e2a9 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
@@ -181,6 +181,8 @@ struct drm_i915_private *mock_gem_device(void)
 		I915_GTT_PAGE_SIZE_64K |
 		I915_GTT_PAGE_SIZE_2M;
 
+	mkwrite_device_info(i915)->ppgtt_bits = 63;
+
 	mock_uncore_init(i915);
 	i915_gem_init__mm(i915);
 
-- 
2.17.1

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