agp/intel: Add gma_bus_addr

It is no longer used in the i915 code, so isolate it from the shared
struct.

This was originally part of:
commit 0e275518f325418d559c05327775bff894b237f7
Author: Ben Widawsky <ben@bwidawsk.net>
Date:   Mon Jan 14 13:35:33 2013 -0800

    agp/intel: decouple more of the agp-i915 sharing

    Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
    Signed-off-by: Ben Widawsky <ben@bwidawsk.net>

That commit had some other hunks which can't be used due to issues
Daniel found in previous commits.

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
[danvet: drop squash notice from the commit since it's imo ok to keep
this one separate.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index b45241479a56..ff5f3483e8ea 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -79,6 +79,7 @@ static struct _intel_private {
         int refcount;
         /* Whether i915 needs to use the dmar apis or not. */
         unsigned int needs_dmar : 1;
+        phys_addr_t gma_bus_addr;
 } intel_private;
 
 #define INTEL_GTT_GEN   intel_private.driver->gen
@@ -625,7 +626,7 @@ static int intel_gtt_init(void)
                 pci_read_config_dword(intel_private.pcidev, I915_GMADDR,
                                       &gma_addr);
 
-        intel_private.base.gma_bus_addr = (gma_addr & PCI_BASE_ADDRESS_MEM_MASK);
+        intel_private.gma_bus_addr = (gma_addr & PCI_BASE_ADDRESS_MEM_MASK);
 
         return 0;
 }
@@ -781,7 +782,7 @@ static int intel_fake_agp_configure(void)
             return -EIO;
 
         intel_private.clear_fake_agp = true;
-        agp_bridge->gart_bus_addr = intel_private.base.gma_bus_addr;
+        agp_bridge->gart_bus_addr = intel_private.gma_bus_addr;
 
         return 0;
 }