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authorShaohua Li <shaohua.li@intel.com>2008-08-21 10:46:17 +0800
committerIngo Molnar <mingo@elte.hu>2008-08-21 13:47:46 +0200
commitbd07928c0f9c3dbe53baf28eae4de4c579772c4c (patch)
tree7210c0a3c96bd58517ba45365ef87092394870b4 /drivers/char/agp/generic.c
parent37acee10f49cf3caa323e05675e8dc9221ef4fd8 (diff)
agp: add agp_generic_destroy_pages()
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>
Diffstat (limited to 'drivers/char/agp/generic.c')
-rw-r--r--drivers/char/agp/generic.c55
1 files changed, 47 insertions, 8 deletions
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index 13a5577ee43..dd370be00d6 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -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)
{