Files
Linux_Drivers/linux_5.10/arch/ia64/include/asm/agp.h
sam.xiang 5c7dd7acc3 [linux] create linux_5.10.4 from T-head official:
repo: https://github.com/T-head-Semi/linux
	commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb

Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
2023-03-10 20:32:41 +08:00

28 lines
863 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_AGP_H
#define _ASM_IA64_AGP_H
/*
* IA-64 specific AGP definitions.
*
* Copyright (C) 2002-2003 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
/*
* To avoid memory-attribute aliasing issues, we require that the AGPGART engine operate
* in coherent mode, which lets us map the AGP memory as normal (write-back) memory
* (unlike x86, where it gets mapped "write-coalescing").
*/
#define map_page_into_agp(page) do { } while (0)
#define unmap_page_from_agp(page) do { } while (0)
#define flush_agp_cache() mb()
/* GATT allocation. Returns/accepts GATT kernel virtual address. */
#define alloc_gatt_pages(order) \
((char *)__get_free_pages(GFP_KERNEL, (order)))
#define free_gatt_pages(table, order) \
free_pages((unsigned long)(table), (order))
#endif /* _ASM_IA64_AGP_H */