agp/intel: Support the extended physical addressing bits on Sandybridge.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
[anholt: Split this patch out of a larger patch for Sandybridge fixes]
Signed-off-by: Eric Anholt <eric@anholt.net>
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index f97122a..2b1a0e9 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -1315,6 +1315,16 @@
return addr | bridge->driver->masks[type].mask;
}
+static unsigned long intel_gen6_mask_memory(struct agp_bridge_data *bridge,
+ dma_addr_t addr, int type)
+{
+ /* Shift high bits down */
+ addr |= (addr >> 28) & 0xff;
+
+ /* Type checking must be done elsewhere */
+ return addr | bridge->driver->masks[type].mask;
+}
+
static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size)
{
u16 snb_gmch_ctl;
@@ -1528,6 +1538,39 @@
#endif
};
+static const struct agp_bridge_driver intel_gen6_driver = {
+ .owner = THIS_MODULE,
+ .aperture_sizes = intel_i830_sizes,
+ .size_type = FIXED_APER_SIZE,
+ .num_aperture_sizes = 4,
+ .needs_scratch_page = true,
+ .configure = intel_i9xx_configure,
+ .fetch_size = intel_i9xx_fetch_size,
+ .cleanup = intel_i915_cleanup,
+ .mask_memory = intel_gen6_mask_memory,
+ .masks = intel_i810_masks,
+ .agp_enable = intel_i810_agp_enable,
+ .cache_flush = global_cache_flush,
+ .create_gatt_table = intel_i965_create_gatt_table,
+ .free_gatt_table = intel_i830_free_gatt_table,
+ .insert_memory = intel_i915_insert_entries,
+ .remove_memory = intel_i915_remove_entries,
+ .alloc_by_type = intel_i830_alloc_by_type,
+ .free_by_type = intel_i810_free_by_type,
+ .agp_alloc_page = agp_generic_alloc_page,
+ .agp_alloc_pages = agp_generic_alloc_pages,
+ .agp_destroy_page = agp_generic_destroy_page,
+ .agp_destroy_pages = agp_generic_destroy_pages,
+ .agp_type_to_mask_type = intel_i830_type_to_mask_type,
+ .chipset_flush = intel_i915_chipset_flush,
+#ifdef USE_PCI_DMA_API
+ .agp_map_page = intel_agp_map_page,
+ .agp_unmap_page = intel_agp_unmap_page,
+ .agp_map_memory = intel_agp_map_memory,
+ .agp_unmap_memory = intel_agp_unmap_memory,
+#endif
+};
+
static const struct agp_bridge_driver intel_g33_driver = {
.owner = THIS_MODULE,
.aperture_sizes = intel_i830_sizes,