agp/amd-k7: Allow binding user memory to the AGP GART.

TTM-based DRM drivers need to be able to bind user memory to the AGP
aperture. This patch fixes the "[TTM] AGP Bind memory failed." errors
and the subsequent fallout seen with the nouveau driver.

Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Tested-by: Grzesiek Sójka <pld@pfu.pl>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/char/agp/amd-k7-agp.c b/drivers/char/agp/amd-k7-agp.c
index b6b1568314c8..b1b4362bc648 100644
--- a/drivers/char/agp/amd-k7-agp.c
+++ b/drivers/char/agp/amd-k7-agp.c
@@ -309,7 +309,8 @@ static int amd_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
 
         num_entries = A_SIZE_LVL2(agp_bridge->current_size)->num_entries;
 
-        if (type != 0 || mem->type != 0)
+        if (type != mem->type ||
+            agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type))
                 return -EINVAL;
 
         if ((pg_start + mem->page_count) > num_entries)
@@ -348,7 +349,8 @@ static int amd_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
         unsigned long __iomem *cur_gatt;
         unsigned long addr;
 
-        if (type != 0 || mem->type != 0)
+        if (type != mem->type ||
+            agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type))
                 return -EINVAL;
 
         for (i = pg_start; i < (mem->page_count + pg_start); i++) {