[Intel-gfx] [PATCH 5/9] drm/i915: s/mappable_end/mappable_size/

Matthew Auld matthew.auld at intel.com
Fri Nov 24 21:29:26 UTC 2017


In a later patch we introduce 'struct resource mappable', which means we
will have both mappable.end and mappable_end, both meaning different
things. Therefore to avoid any confusion prefer mappable_size for
mappable_end, since it is effectively the size of the resource.

Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
Cc: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
---
 drivers/char/agp/intel-gtt.c                  |  4 ++--
 drivers/gpu/drm/i915/gvt/gvt.h                |  2 +-
 drivers/gpu/drm/i915/i915_debugfs.c           |  2 +-
 drivers/gpu/drm/i915/i915_drv.c               |  2 +-
 drivers/gpu/drm/i915/i915_gem.c               |  8 +++----
 drivers/gpu/drm/i915/i915_gem_execbuffer.c    |  2 +-
 drivers/gpu/drm/i915/i915_gem_gtt.c           | 30 +++++++++++++--------------
 drivers/gpu/drm/i915/i915_gem_gtt.h           |  2 +-
 drivers/gpu/drm/i915/i915_vgpu.c              | 12 +++++------
 drivers/gpu/drm/i915/i915_vma.c               |  4 ++--
 drivers/gpu/drm/i915/intel_fbdev.c            |  2 +-
 drivers/gpu/drm/i915/selftests/i915_gem_gtt.c |  2 +-
 drivers/gpu/drm/i915/selftests/i915_vma.c     | 22 ++++++++++----------
 drivers/gpu/drm/i915/selftests/mock_gtt.c     |  2 +-
 include/drm/intel-gtt.h                       |  2 +-
 15 files changed, 49 insertions(+), 49 deletions(-)

diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 9b6b6023193b..2a321ee2943a 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1424,12 +1424,12 @@ EXPORT_SYMBOL(intel_gmch_probe);
 void intel_gtt_get(u64 *gtt_total,
 		   u32 *stolen_size,
 		   phys_addr_t *mappable_base,
-		   u64 *mappable_end)
+		   u64 *mappable_size)
 {
 	*gtt_total = intel_private.gtt_total_entries << PAGE_SHIFT;
 	*stolen_size = intel_private.stolen_size;
 	*mappable_base = intel_private.gma_bus_addr;
-	*mappable_end = intel_private.gtt_mappable_entries << PAGE_SHIFT;
+	*mappable_size = intel_private.gtt_mappable_entries << PAGE_SHIFT;
 }
 EXPORT_SYMBOL(intel_gtt_get);
 
diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h
index 393066726993..028d00e61bad 100644
--- a/drivers/gpu/drm/i915/gvt/gvt.h
+++ b/drivers/gpu/drm/i915/gvt/gvt.h
@@ -335,7 +335,7 @@ int intel_gvt_load_firmware(struct intel_gvt *gvt);
 #define HOST_FENCE 4
 
 /* Aperture/GM space definitions for GVT device */
-#define gvt_aperture_sz(gvt)	  (gvt->dev_priv->ggtt.mappable_end)
+#define gvt_aperture_sz(gvt)	  (gvt->dev_priv->ggtt.mappable_size)
 #define gvt_aperture_pa_base(gvt) (gvt->dev_priv->ggtt.mappable_base)
 
 #define gvt_ggtt_gm_sz(gvt)	  (gvt->dev_priv->ggtt.base.total)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 28294470ae31..a05e2b92c02c 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -523,7 +523,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
 		   dpy_count, dpy_size);
 
 	seq_printf(m, "%llu [%llu] gtt total\n",
-		   ggtt->base.total, ggtt->mappable_end);
+		   ggtt->base.total, ggtt->mappable_size);
 	seq_printf(m, "Supported page sizes: %s\n",
 		   stringify_page_sizes(INTEL_INFO(dev_priv)->page_sizes,
 					buf, sizeof(buf)));
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 0793a27e2b95..e1bb0c8822aa 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -729,7 +729,7 @@ static int i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv)
 		return -ENOMEM;
 
 	ap->ranges[0].base = ggtt->mappable_base;
-	ap->ranges[0].size = ggtt->mappable_end;
+	ap->ranges[0].size = ggtt->mappable_size;
 
 	primary =
 		pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index e03d6c2554e2..05cc4f2df1bf 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -66,7 +66,7 @@ insert_mappable_node(struct i915_ggtt *ggtt,
 	memset(node, 0, sizeof(*node));
 	return drm_mm_insert_node_in_range(&ggtt->base.mm, node,
 					   size, 0, I915_COLOR_UNEVICTABLE,
-					   0, ggtt->mappable_end,
+					   0, ggtt->mappable_size,
 					   DRM_MM_INSERT_LOW);
 }
 
@@ -4158,7 +4158,7 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
 		 * the object in and out of the Global GTT and
 		 * waste a lot of cycles under the mutex.
 		 */
-		if (obj->base.size > dev_priv->ggtt.mappable_end)
+		if (obj->base.size > dev_priv->ggtt.mappable_size)
 			return ERR_PTR(-E2BIG);
 
 		/* If NONBLOCK is set the caller is optimistically
@@ -4177,7 +4177,7 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
 		 * we could try to minimise harm to others.
 		 */
 		if (flags & PIN_NONBLOCK &&
-		    obj->base.size > dev_priv->ggtt.mappable_end / 2)
+		    obj->base.size > dev_priv->ggtt.mappable_size / 2)
 			return ERR_PTR(-ENOSPC);
 	}
 
@@ -4191,7 +4191,7 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
 				return ERR_PTR(-ENOSPC);
 
 			if (flags & PIN_MAPPABLE &&
-			    vma->fence_size > dev_priv->ggtt.mappable_end / 2)
+			    vma->fence_size > dev_priv->ggtt.mappable_size / 2)
 				return ERR_PTR(-ENOSPC);
 		}
 
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 14d9e61a1e06..8224abbb0f2d 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -986,7 +986,7 @@ static void *reloc_iomap(struct drm_i915_gem_object *obj,
 			err = drm_mm_insert_node_in_range
 				(&ggtt->base.mm, &cache->node,
 				 PAGE_SIZE, 0, I915_COLOR_UNEVICTABLE,
-				 0, ggtt->mappable_end,
+				 0, ggtt->mappable_size,
 				 DRM_MM_INSERT_LOW);
 			if (err) /* no inactive aperture space, use cpu reloc */
 				return NULL;
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 6b567bab2363..94faeaebf0d0 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2001,7 +2001,7 @@ static int gen6_ppgtt_allocate_page_directories(struct i915_hw_ppgtt *ppgtt)
 	if (ret)
 		goto err_out;
 
-	if (ppgtt->node.start < ggtt->mappable_end)
+	if (ppgtt->node.start < ggtt->mappable_size)
 		DRM_DEBUG("Forced to use aperture for PDEs\n");
 
 	ppgtt->pd.base.ggtt_offset =
@@ -2840,7 +2840,7 @@ int i915_gem_init_ggtt(struct drm_i915_private *dev_priv)
 	/* Reserve a mappable slot for our lockless error capture */
 	ret = drm_mm_insert_node_in_range(&ggtt->base.mm, &ggtt->error_capture,
 					  PAGE_SIZE, 0, I915_COLOR_UNEVICTABLE,
-					  0, ggtt->mappable_end,
+					  0, ggtt->mappable_size,
 					  DRM_MM_INSERT_LOW);
 	if (ret)
 		return ret;
@@ -3289,7 +3289,7 @@ static int gen8_gmch_probe(struct i915_ggtt *ggtt)
 
 	/* TODO: We're not aware of mappable constraints on gen8 yet */
 	ggtt->mappable_base = pci_resource_start(pdev, 2);
-	ggtt->mappable_end = pci_resource_len(pdev, 2);
+	ggtt->mappable_size = pci_resource_len(pdev, 2);
 
 	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(39));
 	if (!err)
@@ -3346,13 +3346,13 @@ static int gen6_gmch_probe(struct i915_ggtt *ggtt)
 	int err;
 
 	ggtt->mappable_base = pci_resource_start(pdev, 2);
-	ggtt->mappable_end = pci_resource_len(pdev, 2);
+	ggtt->mappable_size = pci_resource_len(pdev, 2);
 
 	/* 64/512MB is the current min/max we actually know of, but this is just
 	 * a coarse sanity check.
 	 */
-	if (ggtt->mappable_end < (64<<20) || ggtt->mappable_end > (512<<20)) {
-		DRM_ERROR("Unknown GMADR size (%llx)\n", ggtt->mappable_end);
+	if (ggtt->mappable_size < (64<<20) || ggtt->mappable_size > (512<<20)) {
+		DRM_ERROR("Unknown GMADR size (%llx)\n", ggtt->mappable_size);
 		return -ENXIO;
 	}
 
@@ -3412,7 +3412,7 @@ static int i915_gmch_probe(struct i915_ggtt *ggtt)
 	intel_gtt_get(&ggtt->base.total,
 		      &ggtt->stolen_size,
 		      &ggtt->mappable_base,
-		      &ggtt->mappable_end);
+		      &ggtt->mappable_size);
 
 	ggtt->do_idle_maps = needs_idle_maps(dev_priv);
 	ggtt->base.insert_page = i915_ggtt_insert_page;
@@ -3460,7 +3460,7 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
 	 */
 	if (HAS_GUC(dev_priv) && i915_modparams.enable_guc_loading) {
 		ggtt->base.total = min_t(u64, ggtt->base.total, GUC_GGTT_TOP);
-		ggtt->mappable_end = min(ggtt->mappable_end, ggtt->base.total);
+		ggtt->mappable_size = min(ggtt->mappable_size, ggtt->base.total);
 	}
 
 	if ((ggtt->base.total - 1) >> 32) {
@@ -3468,20 +3468,20 @@ int i915_ggtt_probe_hw(struct drm_i915_private *dev_priv)
 			  " of address space! Found %lldM!\n",
 			  ggtt->base.total >> 20);
 		ggtt->base.total = 1ULL << 32;
-		ggtt->mappable_end = min(ggtt->mappable_end, ggtt->base.total);
+		ggtt->mappable_size = min(ggtt->mappable_size, ggtt->base.total);
 	}
 
-	if (ggtt->mappable_end > ggtt->base.total) {
+	if (ggtt->mappable_size > ggtt->base.total) {
 		DRM_ERROR("mappable aperture extends past end of GGTT,"
 			  " aperture=%llx, total=%llx\n",
-			  ggtt->mappable_end, ggtt->base.total);
-		ggtt->mappable_end = ggtt->base.total;
+			  ggtt->mappable_size, ggtt->base.total);
+		ggtt->mappable_size = ggtt->base.total;
 	}
 
 	/* GMADR is the PCI mmio aperture into the global GTT. */
 	DRM_INFO("Memory usable by graphics device = %lluM\n",
 		 ggtt->base.total >> 20);
-	DRM_DEBUG_DRIVER("GMADR size = %lldM\n", ggtt->mappable_end >> 20);
+	DRM_DEBUG_DRIVER("GMADR size = %lldM\n", ggtt->mappable_size >> 20);
 	DRM_DEBUG_DRIVER("GTT stolen size = %uM\n", ggtt->stolen_size >> 20);
 	if (intel_vtd_active())
 		DRM_INFO("VT-d active for gfx access\n");
@@ -3513,12 +3513,12 @@ int i915_ggtt_init_hw(struct drm_i915_private *dev_priv)
 
 	if (!io_mapping_init_wc(&dev_priv->ggtt.mappable,
 				dev_priv->ggtt.mappable_base,
-				dev_priv->ggtt.mappable_end)) {
+				dev_priv->ggtt.mappable_size)) {
 		ret = -EIO;
 		goto out_gtt_cleanup;
 	}
 
-	ggtt->mtrr = arch_phys_wc_add(ggtt->mappable_base, ggtt->mappable_end);
+	ggtt->mtrr = arch_phys_wc_add(ggtt->mappable_base, ggtt->mappable_size);
 
 	/*
 	 * Initialise stolen early so that we may reserve preallocated
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 93211a96fdad..922d796983d5 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -371,7 +371,7 @@ struct i915_ggtt {
 	struct io_mapping mappable;	/* Mapping to our CPU mappable region */
 
 	phys_addr_t mappable_base;	/* PA of our GMADR */
-	u64 mappable_end;		/* End offset that we can CPU map */
+	u64 mappable_size;		/* Total mappable size that we can CPU map */
 
 	/* Stolen memory is segmented in hardware with different portions
 	 * offlimits to certain functions.
diff --git a/drivers/gpu/drm/i915/i915_vgpu.c b/drivers/gpu/drm/i915/i915_vgpu.c
index 5fe9f3f39467..d1add5c4e312 100644
--- a/drivers/gpu/drm/i915/i915_vgpu.c
+++ b/drivers/gpu/drm/i915/i915_vgpu.c
@@ -220,17 +220,17 @@ int intel_vgt_balloon(struct drm_i915_private *dev_priv)
 	DRM_INFO("Unmappable graphic memory: base 0x%lx size %ldKiB\n",
 		 unmappable_base, unmappable_size / 1024);
 
-	if (mappable_end > ggtt->mappable_end ||
-	    unmappable_base < ggtt->mappable_end ||
+	if (mappable_end > ggtt->mappable_size ||
+	    unmappable_base < ggtt->mappable_size ||
 	    unmappable_end > ggtt_end) {
 		DRM_ERROR("Invalid ballooning configuration!\n");
 		return -EINVAL;
 	}
 
 	/* Unmappable graphic memory ballooning */
-	if (unmappable_base > ggtt->mappable_end) {
+	if (unmappable_base > ggtt->mappable_size) {
 		ret = vgt_balloon_space(ggtt, &bl_info.space[2],
-					ggtt->mappable_end, unmappable_base);
+					ggtt->mappable_size, unmappable_base);
 
 		if (ret)
 			goto err;
@@ -252,9 +252,9 @@ int intel_vgt_balloon(struct drm_i915_private *dev_priv)
 			goto err_upon_unmappable;
 	}
 
-	if (mappable_end < ggtt->mappable_end) {
+	if (mappable_end < ggtt->mappable_size) {
 		ret = vgt_balloon_space(ggtt, &bl_info.space[1],
-					mappable_end, ggtt->mappable_end);
+					mappable_end, ggtt->mappable_size);
 
 		if (ret)
 			goto err_below_mappable;
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index bf6d8d1eaabe..a9413b601230 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -401,7 +401,7 @@ void __i915_vma_set_map_and_fenceable(struct i915_vma *vma)
 	fenceable = (vma->node.size >= vma->fence_size &&
 		     IS_ALIGNED(vma->node.start, vma->fence_alignment));
 
-	mappable = vma->node.start + vma->fence_size <= i915_vm_to_ggtt(vma->vm)->mappable_end;
+	mappable = vma->node.start + vma->fence_size <= i915_vm_to_ggtt(vma->vm)->mappable_size;
 
 	if (mappable && fenceable)
 		vma->flags |= I915_VMA_CAN_FENCE;
@@ -486,7 +486,7 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags)
 
 	end = vma->vm->total;
 	if (flags & PIN_MAPPABLE)
-		end = min_t(u64, end, dev_priv->ggtt.mappable_end);
+		end = min_t(u64, end, dev_priv->ggtt.mappable_size);
 	if (flags & PIN_ZONE_4G)
 		end = min_t(u64, end, (1ULL << 32) - I915_GTT_PAGE_SIZE);
 	GEM_BUG_ON(!IS_ALIGNED(end, I915_GTT_PAGE_SIZE));
diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index b8af35187d22..e56262d1bc87 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -237,7 +237,7 @@ static int intelfb_create(struct drm_fb_helper *helper,
 
 	/* setup aperture base/size for vesafb takeover */
 	info->apertures->ranges[0].base = dev->mode_config.fb_base;
-	info->apertures->ranges[0].size = ggtt->mappable_end;
+	info->apertures->ranges[0].size = ggtt->mappable_size;
 
 	info->fix.smem_start = dev->mode_config.fb_base + i915_ggtt_offset(vma);
 	info->fix.smem_len = vma->node.size;
diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
index 6491cf0a4f46..e97ae4b4a684 100644
--- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
@@ -1054,7 +1054,7 @@ static int igt_ggtt_page(void *arg)
 	err = drm_mm_insert_node_in_range(&ggtt->base.mm, &tmp,
 					  1024 * PAGE_SIZE, 0,
 					  I915_COLOR_UNEVICTABLE,
-					  0, ggtt->mappable_end,
+					  0, ggtt->mappable_size,
 					  DRM_MM_INSERT_LOW);
 	if (err)
 		goto out_unpin;
diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
index eb89e301b602..f2e15bc1b82a 100644
--- a/drivers/gpu/drm/i915/selftests/i915_vma.c
+++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
@@ -257,30 +257,30 @@ static int igt_vma_pin1(void *arg)
 
 		VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | 4096),
 		VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | 8192),
-		VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)),
-		VALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)),
+		VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.mappable_size - 4096)),
+		VALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | (i915->ggtt.mappable_size - 4096)),
 		VALID(0, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.base.total - 4096)),
 
-		VALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | (i915->ggtt.mappable_end - 4096)),
-		INVALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | i915->ggtt.mappable_end),
+		VALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | (i915->ggtt.mappable_size - 4096)),
+		INVALID(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | i915->ggtt.mappable_size),
 		VALID(0, PIN_GLOBAL | PIN_OFFSET_FIXED | (i915->ggtt.base.total - 4096)),
 		INVALID(0, PIN_GLOBAL | PIN_OFFSET_FIXED | i915->ggtt.base.total),
 		INVALID(0, PIN_GLOBAL | PIN_OFFSET_FIXED | round_down(U64_MAX, PAGE_SIZE)),
 
 		VALID(4096, PIN_GLOBAL),
 		VALID(8192, PIN_GLOBAL),
-		VALID(i915->ggtt.mappable_end - 4096, PIN_GLOBAL | PIN_MAPPABLE),
-		VALID(i915->ggtt.mappable_end, PIN_GLOBAL | PIN_MAPPABLE),
-		NOSPACE(i915->ggtt.mappable_end + 4096, PIN_GLOBAL | PIN_MAPPABLE),
+		VALID(i915->ggtt.mappable_size - 4096, PIN_GLOBAL | PIN_MAPPABLE),
+		VALID(i915->ggtt.mappable_size, PIN_GLOBAL | PIN_MAPPABLE),
+		NOSPACE(i915->ggtt.mappable_size + 4096, PIN_GLOBAL | PIN_MAPPABLE),
 		VALID(i915->ggtt.base.total - 4096, PIN_GLOBAL),
 		VALID(i915->ggtt.base.total, PIN_GLOBAL),
 		NOSPACE(i915->ggtt.base.total + 4096, PIN_GLOBAL),
 		NOSPACE(round_down(U64_MAX, PAGE_SIZE), PIN_GLOBAL),
-		INVALID(8192, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | (i915->ggtt.mappable_end - 4096)),
+		INVALID(8192, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_FIXED | (i915->ggtt.mappable_size - 4096)),
 		INVALID(8192, PIN_GLOBAL | PIN_OFFSET_FIXED | (i915->ggtt.base.total - 4096)),
 		INVALID(8192, PIN_GLOBAL | PIN_OFFSET_FIXED | (round_down(U64_MAX, PAGE_SIZE) - 4096)),
 
-		VALID(8192, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)),
+		VALID(8192, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.mappable_size - 4096)),
 
 #if !IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)
 		/* Misusing BIAS is a programming error (it is not controllable
@@ -288,9 +288,9 @@ static int igt_vma_pin1(void *arg)
 		 * However, the tests are still quite interesting for checking
 		 * variable start, end and size.
 		 */
-		NOSPACE(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | i915->ggtt.mappable_end),
+		NOSPACE(0, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | i915->ggtt.mappable_size),
 		NOSPACE(0, PIN_GLOBAL | PIN_OFFSET_BIAS | i915->ggtt.base.total),
-		NOSPACE(8192, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | (i915->ggtt.mappable_end - 4096)),
+		NOSPACE(8192, PIN_GLOBAL | PIN_MAPPABLE | PIN_OFFSET_BIAS | (i915->ggtt.mappable_size - 4096)),
 		NOSPACE(8192, PIN_GLOBAL | PIN_OFFSET_BIAS | (i915->ggtt.base.total - 4096)),
 #endif
 		{ },
diff --git a/drivers/gpu/drm/i915/selftests/mock_gtt.c b/drivers/gpu/drm/i915/selftests/mock_gtt.c
index 336e1afb250f..d3155f36de89 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gtt.c
+++ b/drivers/gpu/drm/i915/selftests/mock_gtt.c
@@ -111,7 +111,7 @@ void mock_init_ggtt(struct drm_i915_private *i915)
 	ggtt->base.i915 = i915;
 
 	ggtt->mappable_base = 0;
-	ggtt->mappable_end = 2048 * PAGE_SIZE;
+	ggtt->mappable_size = 2048 * PAGE_SIZE;
 	ggtt->base.total = 4096 * PAGE_SIZE;
 
 	ggtt->base.clear_range = nop_clear_range;
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index c5db7975c640..e901de0b6dd8 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -7,7 +7,7 @@
 void intel_gtt_get(u64 *gtt_total,
 		   u32 *stolen_size,
 		   phys_addr_t *mappable_base,
-		   u64 *mappable_end);
+		   u64 *mappable_size);
 
 int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
 		     struct agp_bridge_data *bridge);
-- 
2.14.3



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