[PATCH 11/12] drm/i915: call intel_enable_gtt

[Daniel Vetter]

When drm/i915 is in control of the gtt, we need to call
the enable function at all the relevant places ourselves.

Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
---
 drivers/char/agp/intel-gtt.c    |    3 ++-
 drivers/gpu/drm/i915/i915_gem.c |    3 +++
 include/drm/intel-gtt.h         |    2 ++
 3 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 440e8d4..7397001 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -777,7 +777,7 @@ static void i830_write_entry(dma_addr_t addr, unsigned int entry,
 	writel(addr | pte_flags, intel_private.gtt + entry);
 }
 
-static bool intel_enable_gtt(void)
+bool intel_enable_gtt(void)
 {
 	u8 __iomem *reg;
 
@@ -823,6 +823,7 @@ static bool intel_enable_gtt(void)
 
 	return true;
 }
+EXPORT_SYMBOL(intel_enable_gtt);
 
 static int i830_setup(void)
 {
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 108e4c2..2884b08 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3689,6 +3689,9 @@ i915_gem_init_hw(struct drm_device *dev)
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	int ret;
 
+	if (!intel_enable_gtt())
+		return -EIO;
+
 	i915_gem_l3_remap(dev);
 
 	i915_gem_init_swizzling(dev);
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index 84ebd71..8e29d55 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -27,6 +27,8 @@ int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
 		     struct agp_bridge_data *bridge);
 void intel_gmch_remove(void);
 
+bool intel_enable_gtt(void);
+
 void intel_gtt_chipset_flush(void);
 void intel_gtt_unmap_memory(struct scatterlist *sg_list, int num_sg);
 void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries);
-- 
1.7.7.6