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

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>
Cc: <stable@vger.kernel.org> # 3.10
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index bf5d2477cb77c296dac3a63b3aea2e8a2ec5ce0a..15f2e7025b78e20abcdafc61dee7718800ff1824 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;
        }