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Revert "reduce tlb/cache flush times of agpgart memory allocation"

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This reverts commit 466ae83742.
This commit is contained in:
Ingo Molnar 2008-08-21 13:46:25 +02:00
parent 5843d9a4d0
commit 9326d61bf6
3 changed files with 1 additions and 10 deletions
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4
drivers/char/agp/agp.h
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@ -30,10 +30,6 @@
#define _AGP_BACKEND_PRIV_H 1
#include <asm/agp.h> /* for flush_agp_cache() */
#ifndef map_page_into_agp_noflush
#define map_page_into_agp_noflush(page) map_page_into_agp(page)
#define map_page_into_agp_global_flush()
#endif
#define PFX "agpgart: "

4
drivers/char/agp/generic.c
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@ -274,7 +274,6 @@ struct agp_memory *agp_allocate_memory(struct agp_bridge_data *bridge,
new->memory[i] = virt_to_gart(addr);
new->page_count++;
}
map_page_into_agp_global_flush();
new->bridge = bridge;
return new;
@ -1187,8 +1186,7 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge)
if (page == NULL)
return NULL;
/* agp_allocate_memory will do flush */
map_page_into_agp_noflush(page);
map_page_into_agp(page);
get_page(page);
atomic_inc(&agp_bridge->current_memory_agp);

3
include/asm-x86/agp.h
View File

@ -15,9 +15,6 @@
#define map_page_into_agp(page) set_pages_uc(page, 1)
#define unmap_page_from_agp(page) set_pages_wb(page, 1)
#define map_page_into_agp_noflush(page) set_pages_uc_noflush(page, 1)
#define map_page_into_agp_global_flush() set_memory_flush_all()
/*
* Could use CLFLUSH here if the cpu supports it. But then it would
* need to be called for each cacheline of the whole page so it may