parisc: agp/parisc-agp: allow binding of user memory to the AGP GART

commit 06f0cce43a32bd2357cea1d8733bba48693d556b upstream.

Allow binding of user memory to the AGP GART on systems with HP
Quicksilver AGP bus. This resolves 'bind memory failed' error seen in
dmesg:

 [29.365973] [TTM] AGP Bind memory failed.
 …
 [29.367030] [drm] Forcing AGP to PCI mode

The system doesn't more fail to bind the memory, and hence not falling
back to the PCI mode (if other failures aren't detected).

This is just a simple write down from the following patches:
agp/amd-k7: Allow binding user memory to the AGP GART
agp/hp-agp: Allow binding user memory to the AGP GART

Signed-off-by: Alex Ivanov <gnidorah@p0n4ik.tk>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index 94821ab01c6d6ae1803201c27217c69a30357329..9576fad5d71cb7575adce4699754d3ceed2ae85c 100644 (file)
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -129,7 +129,8 @@ parisc_agp_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
        off_t j, io_pg_start;
        int io_pg_count;
 
-       if (type != 0 || mem->type != 0) {
+       if (type != mem->type ||
+               agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type)) {
                return -EINVAL;
        }
 
@@ -175,7 +176,8 @@ parisc_agp_remove_memory(struct agp_memory *mem, off_t pg_start, int type)
        struct _parisc_agp_info *info = &parisc_agp_info;
        int i, io_pg_start, io_pg_count;
 
-       if (type != 0 || mem->type != 0) {
+       if (type != mem->type ||
+               agp_bridge->driver->agp_type_to_mask_type(agp_bridge, type)) {
                return -EINVAL;
        }