Fix AGP compile on non-x86 architectures

AGP shouldn't use "global_flush_tlb()" to flush the AGP mappings, that i
spurely an x86'ism.  The proper AGP mapping flusher that should be used
is "flush_agp_mappings()", which on x86 obviously happens to do a global
TLB flush.

This makes AGP (or at least the config _I_ happen to use) compile again
on ppc64.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 4 insertions, 6 deletions

diff --git a/drivers/char/agp/backend.c b/drivers/char/agp/backend.c
index 4d5ed18dad00..27bca34b4a65 100644
--- a/drivers/char/agp/backend.c
+++ b/drivers/char/agp/backend.c
@@ -147,7 +147,7 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
                         printk(KERN_ERR PFX "unable to get memory for scratch page.\n");
                         return -ENOMEM;
                 }
-                global_flush_tlb();
+                flush_agp_mappings();
 
                 bridge->scratch_page_real = virt_to_gart(addr);
                 bridge->scratch_page =
@@ -191,7 +191,7 @@ err_out:
         if (bridge->driver->needs_scratch_page) {
                 bridge->driver->agp_destroy_page(
                                 gart_to_virt(bridge->scratch_page_real));
-                global_flush_tlb();
+                flush_agp_mappings();
         }
         if (got_gatt)
                 bridge->driver->free_gatt_table(bridge);
@@ -217,7 +217,7 @@ static void agp_backend_cleanup(struct agp_bridge_data *bridge)
             bridge->driver->needs_scratch_page) {
                 bridge->driver->agp_destroy_page(
                                 gart_to_virt(bridge->scratch_page_real));
-                global_flush_tlb();
+                flush_agp_mappings();
         }
 }
 
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index 19f242b50781..5567ce8d72b0 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -155,7 +155,7 @@ void agp_free_memory(struct agp_memory *curr)
                 for (i = 0; i < curr->page_count; i++) {
                         curr->bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[i]));
                 }
-                global_flush_tlb();
+                flush_agp_mappings();
         }
         agp_free_key(curr->key);
         vfree(curr->memory);
@@ -213,8 +213,6 @@ struct agp_memory *agp_allocate_memory(struct agp_bridge_data *bridge,
                 new->memory[i] = virt_to_gart(addr);
                 new->page_count++;
         }
-        global_flush_tlb();
-
         new->bridge = bridge;
 
         flush_agp_mappings();