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https://github.com/edk2-porting/linux-next.git
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dceb219fc6
These two helpers will be used on set page caching. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
151 lines
3.6 KiB
C
151 lines
3.6 KiB
C
/**************************************************************************
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*
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* Copyright (c) 2018 Advanced Micro Devices, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/*
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* Authors: Huang Rui <ray.huang@amd.com>
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*/
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#ifndef TTM_SET_MEMORY
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#define TTM_SET_MEMORY
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#include <linux/mm.h>
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#ifdef CONFIG_X86
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#include <asm/set_memory.h>
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static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
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{
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return set_pages_array_wb(pages, addrinarray);
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}
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static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
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{
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return set_pages_array_wc(pages, addrinarray);
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}
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static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
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{
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return set_pages_array_uc(pages, addrinarray);
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}
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static inline int ttm_set_pages_wb(struct page *page, int numpages)
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{
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return set_pages_wb(page, numpages);
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}
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static inline int ttm_set_pages_wc(struct page *page, int numpages)
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{
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unsigned long addr = (unsigned long)page_address(page);
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return set_memory_wc(addr, numpages);
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}
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static inline int ttm_set_pages_uc(struct page *page, int numpages)
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{
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return set_pages_uc(page, numpages);
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}
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#else /* for CONFIG_X86 */
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#if IS_ENABLED(CONFIG_AGP)
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#include <asm/agp.h>
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static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
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{
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int i;
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for (i = 0; i < addrinarray; i++)
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unmap_page_from_agp(pages[i]);
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return 0;
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}
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static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
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{
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int i;
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for (i = 0; i < addrinarray; i++)
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map_page_into_agp(pages[i]);
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return 0;
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}
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static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
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{
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int i;
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for (i = 0; i < addrinarray; i++)
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map_page_into_agp(pages[i]);
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return 0;
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}
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static inline int ttm_set_pages_wb(struct page *page, int numpages)
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{
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int i;
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for (i = 0; i < numpages; i++)
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unmap_page_from_agp(page++);
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return 0;
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}
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#else /* for CONFIG_AGP */
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static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
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{
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return 0;
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}
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static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
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{
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return 0;
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}
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static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
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{
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return 0;
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}
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static inline int ttm_set_pages_wb(struct page *page, int numpages)
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{
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return 0;
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}
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#endif /* for CONFIG_AGP */
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static inline int ttm_set_pages_wc(struct page *page, int numpages)
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{
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return 0;
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}
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static inline int ttm_set_pages_uc(struct page *page, int numpages)
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{
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return 0;
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}
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#endif /* for CONFIG_X86 */
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#endif
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