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Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart

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This commit is contained in:
Linus Torvalds 2005-11-09 11:45:00 -08:00
commit a5ee363463
4 changed files with 30 additions and 12 deletions
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9
drivers/char/agp/backend.c
View File

@ -147,6 +147,7 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
printk(KERN_ERR PFX "unable to get memory for scratch page.\n");
return -ENOMEM;
}
global_flush_tlb();
bridge->scratch_page_real = virt_to_gart(addr);
bridge->scratch_page =
@ -187,9 +188,11 @@ static int agp_backend_initialize(struct agp_bridge_data *bridge)
return 0;
err_out:
if (bridge->driver->needs_scratch_page)
if (bridge->driver->needs_scratch_page) {
bridge->driver->agp_destroy_page(
gart_to_virt(bridge->scratch_page_real));
global_flush_tlb();
}
if (got_gatt)
bridge->driver->free_gatt_table(bridge);
if (got_keylist) {
@ -211,9 +214,11 @@ static void agp_backend_cleanup(struct agp_bridge_data *bridge)
bridge->key_list = NULL;
if (bridge->driver->agp_destroy_page &&
bridge->driver->needs_scratch_page)
bridge->driver->needs_scratch_page) {
bridge->driver->agp_destroy_page(
gart_to_virt(bridge->scratch_page_real));
global_flush_tlb();
}
}
/* When we remove the global variable agp_bridge from all drivers

11
drivers/char/agp/generic.c
View File

@ -57,7 +57,8 @@ int map_page_into_agp(struct page *page)
{
int i;
i = change_page_attr(page, 1, PAGE_KERNEL_NOCACHE);
global_flush_tlb();
/* Caller's responsibility to call global_flush_tlb() for
* performance reasons */
return i;
}
EXPORT_SYMBOL_GPL(map_page_into_agp);
@ -66,7 +67,8 @@ int unmap_page_from_agp(struct page *page)
{
int i;
i = change_page_attr(page, 1, PAGE_KERNEL);
global_flush_tlb();
/* Caller's responsibility to call global_flush_tlb() for
* performance reasons */
return i;
}
EXPORT_SYMBOL_GPL(unmap_page_from_agp);
@ -153,6 +155,7 @@ void agp_free_memory(struct agp_memory *curr)
for (i = 0; i < curr->page_count; i++) {
curr->bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[i]));
}
global_flush_tlb();
}
agp_free_key(curr->key);
vfree(curr->memory);
@ -210,7 +213,9 @@ struct agp_memory *agp_allocate_memory(struct agp_bridge_data *bridge,
new->memory[i] = virt_to_gart(addr);
new->page_count++;
}
new->bridge = bridge;
global_flush_tlb();
new->bridge = bridge;
flush_agp_mappings();

17
drivers/char/agp/i460-agp.c
View File

@ -111,8 +111,10 @@ static int i460_fetch_size (void)
if (i460.io_page_shift != I460_IO_PAGE_SHIFT) {
printk(KERN_ERR PFX
"I/O (GART) page-size %ZuKB doesn't match expected size %ZuKB\n",
1UL << (i460.io_page_shift - 10), 1UL << (I460_IO_PAGE_SHIFT));
"I/O (GART) page-size %luKB doesn't match expected "
"size %luKB\n",
1UL << (i460.io_page_shift - 10),
1UL << (I460_IO_PAGE_SHIFT));
return 0;
}
@ -514,9 +516,10 @@ static void *i460_alloc_page (struct agp_bridge_data *bridge)
{
void *page;
if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT)
if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT) {
page = agp_generic_alloc_page(agp_bridge);
else
global_flush_tlb();
} else
/* Returning NULL would cause problems */
/* AK: really dubious code. */
page = (void *)~0UL;
@ -525,8 +528,10 @@ static void *i460_alloc_page (struct agp_bridge_data *bridge)
static void i460_destroy_page (void *page)
{
if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT)
if (I460_IO_PAGE_SHIFT <= PAGE_SHIFT) {
agp_generic_destroy_page(page);
global_flush_tlb();
}
}
#endif /* I460_LARGE_IO_PAGES */
@ -536,7 +541,7 @@ static unsigned long i460_mask_memory (struct agp_bridge_data *bridge,
{
/* Make sure the returned address is a valid GATT entry */
return bridge->driver->masks[0].mask
| (((addr & ~((1 << I460_IO_PAGE_SHIFT) - 1)) & 0xffffff000) >> 12);
| (((addr & ~((1 << I460_IO_PAGE_SHIFT) - 1)) & 0xfffff000) >> 12);
}
struct agp_bridge_driver intel_i460_driver = {

5
drivers/char/agp/intel-agp.c
View File

@ -270,6 +270,7 @@ static struct agp_memory *alloc_agpphysmem_i8xx(size_t pg_count, int type)
switch (pg_count) {
case 1: addr = agp_bridge->driver->agp_alloc_page(agp_bridge);
global_flush_tlb();
break;
case 4:
/* kludge to get 4 physical pages for ARGB cursor */
@ -330,9 +331,11 @@ static void intel_i810_free_by_type(struct agp_memory *curr)
if(curr->type == AGP_PHYS_MEMORY) {
if (curr->page_count == 4)
i8xx_destroy_pages(gart_to_virt(curr->memory[0]));
else
else {
agp_bridge->driver->agp_destroy_page(
gart_to_virt(curr->memory[0]));
global_flush_tlb();
}
vfree(curr->memory);
}
kfree(curr);