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authorMichael Werner <werner@mrcoffee.engr.sgi.com>2005-03-27 22:08:42 -0800
committerDave Jones <davej@redhat.com>2005-06-07 12:35:43 -0700
commite29b545cb153f230fbd8ff4c19bc98ab950f9f5c (patch)
treecfc8573440b7eb277aaf835842286a36c5e59531 /drivers/char/agp
parentd0de98fa16169562bd74913c6c9b3857f9065c79 (diff)
[PATCH] sgi-agp: fixes a problem with accessing GART memory in sgi_tioca_insert_memory and sgi_tioca_remove_memory
This patch fixes a problem with accessing GART memory in sgi_tioca_insert_memory and sgi_tioca_remove_memory. sgi-agp.c | 12 +++++++++--- 1 files changed, 9 insertions(+), 3 deletions(-) Signed-off-by: Mike Werner <werner@sgi.com> Signed-off-by: Dave Jones <davej@redhat.com>
Diffstat (limited to 'drivers/char/agp')
-rw-r--r--drivers/char/agp/sgi-agp.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/char/agp/sgi-agp.c b/drivers/char/agp/sgi-agp.c
index 4b3eda26797..d3aa159c9de 100644
--- a/drivers/char/agp/sgi-agp.c
+++ b/drivers/char/agp/sgi-agp.c
@@ -133,11 +133,14 @@ static int sgi_tioca_insert_memory(struct agp_memory *mem, off_t pg_start,
off_t j;
void *temp;
struct agp_bridge_data *bridge;
+ u64 *table;
bridge = mem->bridge;
if (!bridge)
return -EINVAL;
+ table = (u64 *)bridge->gatt_table;
+
temp = bridge->current_size;
switch (bridge->driver->size_type) {
@@ -175,7 +178,7 @@ static int sgi_tioca_insert_memory(struct agp_memory *mem, off_t pg_start,
j = pg_start;
while (j < (pg_start + mem->page_count)) {
- if (*(bridge->gatt_table + j))
+ if (table[j])
return -EBUSY;
j++;
}
@@ -186,7 +189,7 @@ static int sgi_tioca_insert_memory(struct agp_memory *mem, off_t pg_start,
}
for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
- *(bridge->gatt_table + j) =
+ table[j] =
bridge->driver->mask_memory(bridge, mem->memory[i],
mem->type);
}
@@ -200,6 +203,7 @@ static int sgi_tioca_remove_memory(struct agp_memory *mem, off_t pg_start,
{
size_t i;
struct agp_bridge_data *bridge;
+ u64 *table;
bridge = mem->bridge;
if (!bridge)
@@ -209,8 +213,10 @@ static int sgi_tioca_remove_memory(struct agp_memory *mem, off_t pg_start,
return -EINVAL;
}
+ table = (u64 *)bridge->gatt_table;
+
for (i = pg_start; i < (mem->page_count + pg_start); i++) {
- *(bridge->gatt_table + i) = 0;
+ table[i] = 0;
}
bridge->driver->tlb_flush(mem);