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authorLinus Torvalds <torvalds@g5.osdl.org>2005-11-07 13:26:58 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-07 13:26:58 -0800
commit7079060f3e86ea4c1d4e9c1e356592ef9dcaaa1f (patch)
treed56af89cd433440e3b9c94a830838d34b502e446 /drivers/char/agp/sworks-agp.c
parent3f00d3e8fb963968a922d821a9a53b503b687e81 (diff)
parent0a1cc0b6a4abaed5f891d1be3e3d0d7b9b719287 (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart
Diffstat (limited to 'drivers/char/agp/sworks-agp.c')
-rw-r--r--drivers/char/agp/sworks-agp.c29
1 files changed, 21 insertions, 8 deletions
diff --git a/drivers/char/agp/sworks-agp.c b/drivers/char/agp/sworks-agp.c
index 71ea59a1dbe..5a5392dd125 100644
--- a/drivers/char/agp/sworks-agp.c
+++ b/drivers/char/agp/sworks-agp.c
@@ -102,19 +102,17 @@ static int serverworks_create_gatt_pages(int nr_tables)
int retval = 0;
int i;
- tables = kmalloc((nr_tables + 1) * sizeof(struct serverworks_page_map *),
+ tables = kzalloc((nr_tables + 1) * sizeof(struct serverworks_page_map *),
GFP_KERNEL);
- if (tables == NULL) {
+ if (tables == NULL)
return -ENOMEM;
- }
- memset(tables, 0, sizeof(struct serverworks_page_map *) * (nr_tables + 1));
+
for (i = 0; i < nr_tables; i++) {
- entry = kmalloc(sizeof(struct serverworks_page_map), GFP_KERNEL);
+ entry = kzalloc(sizeof(struct serverworks_page_map), GFP_KERNEL);
if (entry == NULL) {
retval = -ENOMEM;
break;
}
- memset(entry, 0, sizeof(struct serverworks_page_map));
tables[i] = entry;
retval = serverworks_create_page_map(entry);
if (retval != 0) break;
@@ -244,13 +242,27 @@ static int serverworks_fetch_size(void)
*/
static void serverworks_tlbflush(struct agp_memory *temp)
{
+ unsigned long timeout;
+
writeb(1, serverworks_private.registers+SVWRKS_POSTFLUSH);
- while (readb(serverworks_private.registers+SVWRKS_POSTFLUSH) == 1)
+ timeout = jiffies + 3*HZ;
+ while (readb(serverworks_private.registers+SVWRKS_POSTFLUSH) == 1) {
cpu_relax();
+ if (time_after(jiffies, timeout)) {
+ printk(KERN_ERR PFX "TLB post flush took more than 3 seconds\n");
+ break;
+ }
+ }
writel(1, serverworks_private.registers+SVWRKS_DIRFLUSH);
- while(readl(serverworks_private.registers+SVWRKS_DIRFLUSH) == 1)
+ timeout = jiffies + 3*HZ;
+ while (readl(serverworks_private.registers+SVWRKS_DIRFLUSH) == 1) {
cpu_relax();
+ if (time_after(jiffies, timeout)) {
+ printk(KERN_ERR PFX "TLB Dir flush took more than 3 seconds\n");
+ break;
+ }
+ }
}
static int serverworks_configure(void)
@@ -533,6 +545,7 @@ static struct pci_device_id agp_serverworks_pci_table[] = {
MODULE_DEVICE_TABLE(pci, agp_serverworks_pci_table);
static struct pci_driver agp_serverworks_pci_driver = {
+ .owner = THIS_MODULE,
.name = "agpgart-serverworks",
.id_table = agp_serverworks_pci_table,
.probe = agp_serverworks_probe,