#include <linux/module.h>
#include <linux/pci.h>
#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/jiffies.h>
#include <linux/agp_backend.h>
#include "agp.h"
}
SetPageReserved(virt_to_page(page_map->real));
global_cache_flush();
- page_map->remapped = ioremap_nocache(virt_to_phys(page_map->real),
+ page_map->remapped = ioremap_nocache(virt_to_gart(page_map->real),
PAGE_SIZE);
if (page_map->remapped == NULL) {
ClearPageReserved(virt_to_page(page_map->real));
}
global_cache_flush();
- for(i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++)
+ for (i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++)
writel(agp_bridge->scratch_page, page_map->remapped+i);
return 0;
struct serverworks_page_map *entry;
tables = serverworks_private.gatt_pages;
- for(i = 0; i < serverworks_private.num_tables; i++) {
+ for (i = 0; i < serverworks_private.num_tables; i++) {
entry = tables[i];
if (entry != NULL) {
if (entry->real != NULL) {
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;
#define GET_GATT_OFF(addr) ((addr & 0x003ff000) >> 12)
#endif
-static int serverworks_create_gatt_table(void)
+static int serverworks_create_gatt_table(struct agp_bridge_data *bridge)
{
struct aper_size_info_lvl2 *value;
struct serverworks_page_map page_dir;
return retval;
}
/* Create a fake scratch directory */
- for(i = 0; i < 1024; i++) {
+ for (i = 0; i < 1024; i++) {
writel(agp_bridge->scratch_page, serverworks_private.scratch_dir.remapped+i);
- writel(virt_to_phys(serverworks_private.scratch_dir.real) | 1, page_dir.remapped+i);
+ writel(virt_to_gart(serverworks_private.scratch_dir.real) | 1, page_dir.remapped+i);
}
retval = serverworks_create_gatt_pages(value->num_entries / 1024);
agp_bridge->gatt_table_real = (u32 *)page_dir.real;
agp_bridge->gatt_table = (u32 __iomem *)page_dir.remapped;
- agp_bridge->gatt_bus_addr = virt_to_phys(page_dir.real);
+ agp_bridge->gatt_bus_addr = virt_to_gart(page_dir.real);
/* Get the address for the gart region.
* This is a bus address even on the alpha, b/c its
pci_read_config_dword(agp_bridge->dev,serverworks_private.gart_addr_ofs,&temp);
agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- /* Calculate the agp offset */
-
- for(i = 0; i < value->num_entries / 1024; i++)
- writel(virt_to_phys(serverworks_private.gatt_pages[i]->real)|1, page_dir.remapped+i);
+ /* Calculate the agp offset */
+ for (i = 0; i < value->num_entries / 1024; i++)
+ writel(virt_to_gart(serverworks_private.gatt_pages[i]->real)|1, page_dir.remapped+i);
return 0;
}
-static int serverworks_free_gatt_table(void)
+static int serverworks_free_gatt_table(struct agp_bridge_data *bridge)
{
struct serverworks_page_map page_dir;
-
+
page_dir.real = (unsigned long *)agp_bridge->gatt_table_real;
page_dir.remapped = (unsigned long __iomem *)agp_bridge->gatt_table;
*/
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)
for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
addr = (j * PAGE_SIZE) + agp_bridge->gart_bus_addr;
cur_gatt = SVRWRKS_GET_GATT(addr);
- writel(agp_bridge->driver->mask_memory(mem->memory[i], mem->type), cur_gatt+GET_GATT_OFF(addr));
+ writel(agp_bridge->driver->mask_memory(agp_bridge, mem->memory[i], mem->type), cur_gatt+GET_GATT_OFF(addr));
}
serverworks_tlbflush(mem);
return 0;
{32, 8192, 0xfe000000}
};
-static void serverworks_agp_enable(u32 mode)
+static void serverworks_agp_enable(struct agp_bridge_data *bridge, u32 mode)
{
u32 command;
pci_read_config_dword(serverworks_private.svrwrks_dev,
- agp_bridge->capndx + PCI_AGP_STATUS,
+ bridge->capndx + PCI_AGP_STATUS,
&command);
- command = agp_collect_device_status(mode, command);
+ command = agp_collect_device_status(bridge, mode, command);
command &= ~0x10; /* disable FW */
command &= ~0x08;
command |= 0x100;
pci_write_config_dword(serverworks_private.svrwrks_dev,
- agp_bridge->capndx + PCI_AGP_COMMAND,
+ bridge->capndx + PCI_AGP_COMMAND,
command);
agp_device_command(command, 0);
}
-struct agp_bridge_driver sworks_driver = {
+static struct agp_bridge_driver sworks_driver = {
.owner = THIS_MODULE,
.aperture_sizes = serverworks_sizes,
.size_type = LVL2_APER_SIZE,
switch (pdev->device) {
case 0x0006:
- /* ServerWorks CNB20HE
- Fail silently.*/
- printk (KERN_ERR PFX "Detected ServerWorks CNB20HE chipset: No AGP present.\n");
+ printk (KERN_ERR PFX "ServerWorks CNB20HE is unsupported due to lack of documentation.\n");
return -ENODEV;
case PCI_DEVICE_ID_SERVERWORKS_HE:
{
if (agp_off)
return -EINVAL;
- return pci_module_init(&agp_serverworks_pci_driver);
+ return pci_register_driver(&agp_serverworks_pci_driver);
}
static void __exit agp_serverworks_cleanup(void)
git://git.onelab.eu / linux-2.6.git / blobdiff