Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86

[linux-2.6-omap-h63xx.git] / drivers / char / agp / generic.c

diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index f902d71947ba9914507c6b900bffc17aa6915d53..64b2f6d7059dc96f494e49ace44a2601937d5a85 100644 (file)
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -37,6 +37,7 @@
 #include <linux/vmalloc.h>
 #include <linux/dma-mapping.h>
 #include <linux/mm.h>
+#include <linux/sched.h>
 #include <asm/io.h>
 #include <asm/cacheflush.h>
 #include <asm/pgtable.h>
@@ -51,28 +52,6 @@ int agp_memory_reserved;
  */
 EXPORT_SYMBOL_GPL(agp_memory_reserved);
 
-#if defined(CONFIG_X86)
-int map_page_into_agp(struct page *page)
-{
-       int i;
-       i = change_page_attr(page, 1, PAGE_KERNEL_NOCACHE);
-       /* Caller's responsibility to call global_flush_tlb() for
-        * performance reasons */
-       return i;
-}
-EXPORT_SYMBOL_GPL(map_page_into_agp);
-
-int unmap_page_from_agp(struct page *page)
-{
-       int i;
-       i = change_page_attr(page, 1, PAGE_KERNEL);
-       /* Caller's responsibility to call global_flush_tlb() for
-        * performance reasons */
-       return i;
-}
-EXPORT_SYMBOL_GPL(unmap_page_from_agp);
-#endif
-
 /*
  * Generic routines for handling agp_memory structures -
  * They use the basic page allocation routines to do the brunt of the work.
@@ -216,9 +195,12 @@ void agp_free_memory(struct agp_memory *curr)
        }
        if (curr->page_count != 0) {
                for (i = 0; i < curr->page_count; i++) {
-                       curr->bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[i]));
+                       curr->bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[i]), AGP_PAGE_DESTROY_UNMAP);
                }
                flush_agp_mappings();
+               for (i = 0; i < curr->page_count; i++) {
+                       curr->bridge->driver->agp_destroy_page(gart_to_virt(curr->memory[i]), AGP_PAGE_DESTROY_FREE);
+               }
        }
        agp_free_key(curr->key);
        agp_free_page_array(curr);
@@ -1191,14 +1173,13 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge)
        map_page_into_agp(page);
 
        get_page(page);
-       SetPageLocked(page);
        atomic_inc(&agp_bridge->current_memory_agp);
        return page_address(page);
 }
 EXPORT_SYMBOL(agp_generic_alloc_page);
 
 
-void agp_generic_destroy_page(void *addr)
+void agp_generic_destroy_page(void *addr, int flags)
 {
        struct page *page;
 
@@ -1206,11 +1187,14 @@ void agp_generic_destroy_page(void *addr)
                return;
 
        page = virt_to_page(addr);
-       unmap_page_from_agp(page);
-       put_page(page);
-       unlock_page(page);
-       free_page((unsigned long)addr);
-       atomic_dec(&agp_bridge->current_memory_agp);
+       if (flags & AGP_PAGE_DESTROY_UNMAP)
+               unmap_page_from_agp(page);
+
+       if (flags & AGP_PAGE_DESTROY_FREE) {
+               put_page(page);
+               free_page((unsigned long)addr);
+               atomic_dec(&agp_bridge->current_memory_agp);
+       }
 }
 EXPORT_SYMBOL(agp_generic_destroy_page);