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agp: add agp_generic_destroy_pages()

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Add agp_generic_destroy_pages(), it uses new pageattr array interface API.

Signed-off-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Shaohua Li
2008-08-21 10:46:17 +08:00
committed by Ingo Molnar
parent 37acee10f4
commit bd07928c0f
3 changed files with 63 additions and 8 deletions
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55
drivers/char/agp/generic.c
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@@ -201,14 +201,22 @@ void agp_free_memory(struct agp_memory *curr)
return;
}
if (curr->page_count != 0) {
for (i = 0; i < curr->page_count; i++) {
curr->memory[i] = (unsigned long)gart_to_virt(curr->memory[i]);
curr->bridge->driver->agp_destroy_page((void *)curr->memory[i],
AGP_PAGE_DESTROY_UNMAP);
}
for (i = 0; i < curr->page_count; i++) {
curr->bridge->driver->agp_destroy_page((void *)curr->memory[i],
AGP_PAGE_DESTROY_FREE);
if (curr->bridge->driver->agp_destroy_pages) {
curr->bridge->driver->agp_destroy_pages(curr);
} else {
for (i = 0; i < curr->page_count; i++) {
curr->memory[i] = (unsigned long)gart_to_virt(
curr->memory[i]);
curr->bridge->driver->agp_destroy_page(
(void *)curr->memory[i],
AGP_PAGE_DESTROY_UNMAP);
}
for (i = 0; i < curr->page_count; i++) {
curr->bridge->driver->agp_destroy_page(
(void *)curr->memory[i],
AGP_PAGE_DESTROY_FREE);
}
}
}
agp_free_key(curr->key);
@@ -1236,6 +1244,37 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge)
}
EXPORT_SYMBOL(agp_generic_alloc_page);
void agp_generic_destroy_pages(struct agp_memory *mem)
{
int i;
void *addr;
struct page *page;
if (!mem)
return;
for (i = 0; i < mem->page_count; i++)
mem->memory[i] = (unsigned long)gart_to_virt(mem->memory[i]);
#ifdef CONFIG_X86
set_memory_array_wb(mem->memory, mem->page_count);
#endif
for (i = 0; i < mem->page_count; i++) {
addr = (void *)mem->memory[i];
page = virt_to_page(addr);
#ifndef CONFIG_X86
unmap_page_from_agp(page);
#endif
put_page(page);
free_page((unsigned long)addr);
atomic_dec(&agp_bridge->current_memory_agp);
mem->memory[i] = 0;
}
}
EXPORT_SYMBOL(agp_generic_destroy_pages);
void agp_generic_destroy_page(void *addr, int flags)
{