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authorDave Airlie <airlied@redhat.com>2008-12-19 15:38:34 +1000
committerDave Airlie <airlied@redhat.com>2008-12-19 15:38:34 +1000
commitac5c4e76180a74c7f922f6fa71ace0cef45fa433 (patch)
tree04ba893ac3b43fb24fa413f1ad8f37bff5cb7ee5 /drivers
parentc4de0a5d671e3af38dc3496538e391782aecc3a5 (diff)
downloadconfigs-ac5c4e76180a74c7f922f6fa71ace0cef45fa433.tar.gz
drm/i915: GEM on PAE has problems - disable it for now.
On PAE systems, GEM allocates pages using shmem, and passes these pages to be bound into AGP, however the AGP interfaces + the x86 set_memory interfaces all take unsigned long not dma_addr_t. The initial fix for this was a mess, so we need to do this correctly for 2.6.29. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c10
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h2
2 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 553dd4bc307..afa8a12cd00 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -717,7 +717,7 @@ static int i915_getparam(struct drm_device *dev, void *data,
value = dev->pci_device;
break;
case I915_PARAM_HAS_GEM:
- value = 1;
+ value = dev_priv->has_gem;
break;
default:
DRM_ERROR("Unknown parameter %d\n", param->param);
@@ -830,6 +830,14 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
dev_priv->regs = ioremap(base, size);
+#ifdef CONFIG_HIGHMEM64G
+ /* don't enable GEM on PAE - needs agp + set_memory_* interface fixes */
+ dev_priv->has_gem = 0;
+#else
+ /* enable GEM by default */
+ dev_priv->has_gem = 1;
+#endif
+
i915_gem_load(dev);
/* Init HWS */
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index adc972cc6bf..b3cc4731aa7 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -106,6 +106,8 @@ struct intel_opregion {
typedef struct drm_i915_private {
struct drm_device *dev;
+ int has_gem;
+
void __iomem *regs;
drm_local_map_t *sarea;