[Intel-gfx] [PATCH 2/3] drm/i915/gtt: Allow >= 4GB sizes for vm.

[Mika Kuoppala]

We can have exactly 4GB sized ppgtt with 32bit system.
size_t is inadequate for this.

Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
---
 drivers/char/agp/intel-gtt.c        | 2 +-
 drivers/gpu/drm/i915/i915_debugfs.c | 4 ++--
 drivers/gpu/drm/i915/i915_gem_gtt.c | 8 ++++----
 drivers/gpu/drm/i915/i915_gem_gtt.h | 6 +++---
 include/drm/intel-gtt.h             | 2 +-
 5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 0b4188b..2f0396c 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1408,7 +1408,7 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
 }
 EXPORT_SYMBOL(intel_gmch_probe);
 
-void intel_gtt_get(size_t *gtt_total, size_t *stolen_size,
+void intel_gtt_get(u64 *gtt_total, size_t *stolen_size,
 		   phys_addr_t *mappable_base, unsigned long *mappable_end)
 {
 	*gtt_total = intel_private.gtt_total_entries << PAGE_SHIFT;
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index adbbdda..44175f6 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -474,9 +474,9 @@ static int i915_gem_object_info(struct seq_file *m, void* data)
 	seq_printf(m, "%u fault mappable objects, %zu bytes\n",
 		   count, size);
 
-	seq_printf(m, "%zu [%lu] gtt total\n",
+	seq_printf(m, "%llu [%llu] gtt total\n",
 		   dev_priv->gtt.base.total,
-		   dev_priv->gtt.mappable_end - dev_priv->gtt.base.start);
+		   (u64)dev_priv->gtt.mappable_end - dev_priv->gtt.base.start);
 
 	seq_putc(m, '\n');
 	print_batch_pool_stats(m, dev_priv);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 17b7df0..525d154 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -2347,7 +2347,7 @@ static void chv_setup_private_ppat(struct drm_i915_private *dev_priv)
 }
 
 static int gen8_gmch_probe(struct drm_device *dev,
-			   size_t *gtt_total,
+			   u64 *gtt_total,
 			   size_t *stolen,
 			   phys_addr_t *mappable_base,
 			   unsigned long *mappable_end)
@@ -2395,7 +2395,7 @@ static int gen8_gmch_probe(struct drm_device *dev,
 }
 
 static int gen6_gmch_probe(struct drm_device *dev,
-			   size_t *gtt_total,
+			   u64 *gtt_total,
 			   size_t *stolen,
 			   phys_addr_t *mappable_base,
 			   unsigned long *mappable_end)
@@ -2446,7 +2446,7 @@ static void gen6_gmch_remove(struct i915_address_space *vm)
 }
 
 static int i915_gmch_probe(struct drm_device *dev,
-			   size_t *gtt_total,
+			   u64 *gtt_total,
 			   size_t *stolen,
 			   phys_addr_t *mappable_base,
 			   unsigned long *mappable_end)
@@ -2514,7 +2514,7 @@ int i915_gem_gtt_init(struct drm_device *dev)
 	gtt->base.dev = dev;
 
 	/* GMADR is the PCI mmio aperture into the global GTT. */
-	DRM_INFO("Memory usable by graphics device = %zdM\n",
+	DRM_INFO("Memory usable by graphics device = %lluM\n",
 		 gtt->base.total >> 20);
 	DRM_DEBUG_DRIVER("GMADR size = %ldM\n", gtt->mappable_end >> 20);
 	DRM_DEBUG_DRIVER("GTT stolen size = %zdM\n", gtt->stolen_size >> 20);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h
index 0d46dd2..5786c7d 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.h
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.h
@@ -233,8 +233,8 @@ struct i915_address_space {
 	struct drm_mm mm;
 	struct drm_device *dev;
 	struct list_head global_link;
-	unsigned long start;		/* Start offset always 0 for dri2 */
-	size_t total;		/* size addr space maps (ex. 2GB for ggtt) */
+	u64 start;		/* Start offset always 0 for dri2 */
+	u64 total;		/* size addr space maps (ex. 2GB for ggtt) */
 
 	struct {
 		dma_addr_t addr;
@@ -314,7 +314,7 @@ struct i915_gtt {
 	int mtrr;
 
 	/* global gtt ops */
-	int (*gtt_probe)(struct drm_device *dev, size_t *gtt_total,
+	int (*gtt_probe)(struct drm_device *dev, u64 *gtt_total,
 			  size_t *stolen, phys_addr_t *mappable_base,
 			  unsigned long *mappable_end);
 };
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index b08bdad..dbf4105 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -3,7 +3,7 @@
 #ifndef _DRM_INTEL_GTT_H
 #define	_DRM_INTEL_GTT_H
 
-void intel_gtt_get(size_t *gtt_total, size_t *stolen_size,
+void intel_gtt_get(u64 *gtt_total, size_t *stolen_size,
 		   phys_addr_t *mappable_base, unsigned long *mappable_end);
 
 int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
-- 
1.9.1