drm/ttm: add ttm_set_memory header (v2) (2ac305b7) · Commits · 戴 / test

include/drm/ttm/ttm_set_memory.h

0 → 100644

+128 −0

Original line number	Diff line number	Diff line
		/**************************************************************************
		*
		* Copyright (c) 2018 Advanced Micro Devices, Inc.
		* All Rights Reserved.
		*
		* Permission is hereby granted, free of charge, to any person obtaining a
		* copy of this software and associated documentation files (the
		* "Software"), to deal in the Software without restriction, including
		* without limitation the rights to use, copy, modify, merge, publish,
		* distribute, sub license, and/or sell copies of the Software, and to
		* permit persons to whom the Software is furnished to do so, subject to
		* the following conditions:
		*
		* The above copyright notice and this permission notice (including the
		* next paragraph) shall be included in all copies or substantial portions
		* of the Software.
		*
		* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
		* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
		* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
		* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
		* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
		* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
		* USE OR OTHER DEALINGS IN THE SOFTWARE.
		*
		**************************************************************************/
		/*
		* Authors: Huang Rui <ray.huang@amd.com>
		*/

		#ifndef TTM_SET_MEMORY
		#define TTM_SET_MEMORY

		#include <linux/mm.h>

		#ifdef CONFIG_X86

		#include <asm/set_memory.h>

		static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
		{
		return set_pages_array_wb(pages, addrinarray);
		}

		static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
		{
		return set_pages_array_wc(pages, addrinarray);
		}

		static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
		{
		return set_pages_array_uc(pages, addrinarray);
		}

		static inline int ttm_set_pages_wb(struct page *page, int numpages)
		{
		return set_pages_wb(page, numpages);
		}

		#else /* for CONFIG_X86 */

		#if IS_ENABLED(CONFIG_AGP)

		#include <asm/agp.h>

		static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
		{
		int i;

		for (i = 0; i < addrinarray; i++)
		unmap_page_from_agp(pages[i]);
		return 0;
		}

		static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
		{
		int i;

		for (i = 0; i < addrinarray; i++)
		map_page_into_agp(pages[i]);
		return 0;
		}

		static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
		{
		int i;

		for (i = 0; i < addrinarray; i++)
		map_page_into_agp(pages[i]);
		return 0;
		}

		static inline int ttm_set_pages_wb(struct page *page, int numpages)
		{
		int i;

		for (i = 0; i < numpages; i++)
		unmap_page_from_agp(page++);
		return 0;
		}

		#else /* for CONFIG_AGP */

		static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
		{
		return 0;
		}

		static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
		{
		return 0;
		}

		static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
		{
		return 0;
		}

		static inline int ttm_set_pages_wb(struct page *page, int numpages)
		{
		return 0;
		}

		#endif /* for CONFIG_AGP */

		#endif /* for CONFIG_X86 */

		#endif

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