diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/gpu/drm/drm_cache.c')
-rw-r--r-- | ANDROID_3.4.5/drivers/gpu/drm/drm_cache.c | 100 |
1 files changed, 0 insertions, 100 deletions
diff --git a/ANDROID_3.4.5/drivers/gpu/drm/drm_cache.c b/ANDROID_3.4.5/drivers/gpu/drm/drm_cache.c deleted file mode 100644 index 4b8653b9..00000000 --- a/ANDROID_3.4.5/drivers/gpu/drm/drm_cache.c +++ /dev/null @@ -1,100 +0,0 @@ -/************************************************************************** - * - * Copyright (c) 2006-2007 Tungsten Graphics, Inc., Cedar Park, TX., USA - * 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: Thomas Hellström <thomas-at-tungstengraphics-dot-com> - */ - -#include <linux/export.h> -#include "drmP.h" - -#if defined(CONFIG_X86) -static void -drm_clflush_page(struct page *page) -{ - uint8_t *page_virtual; - unsigned int i; - - if (unlikely(page == NULL)) - return; - - page_virtual = kmap_atomic(page); - for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size) - clflush(page_virtual + i); - kunmap_atomic(page_virtual); -} - -static void drm_cache_flush_clflush(struct page *pages[], - unsigned long num_pages) -{ - unsigned long i; - - mb(); - for (i = 0; i < num_pages; i++) - drm_clflush_page(*pages++); - mb(); -} - -static void -drm_clflush_ipi_handler(void *null) -{ - wbinvd(); -} -#endif - -void -drm_clflush_pages(struct page *pages[], unsigned long num_pages) -{ - -#if defined(CONFIG_X86) - if (cpu_has_clflush) { - drm_cache_flush_clflush(pages, num_pages); - return; - } - - if (on_each_cpu(drm_clflush_ipi_handler, NULL, 1) != 0) - printk(KERN_ERR "Timed out waiting for cache flush.\n"); - -#elif defined(__powerpc__) - unsigned long i; - for (i = 0; i < num_pages; i++) { - struct page *page = pages[i]; - void *page_virtual; - - if (unlikely(page == NULL)) - continue; - - page_virtual = kmap_atomic(page); - flush_dcache_range((unsigned long)page_virtual, - (unsigned long)page_virtual + PAGE_SIZE); - kunmap_atomic(page_virtual); - } -#else - printk(KERN_ERR "Architecture has no drm_cache.c support\n"); - WARN_ON_ONCE(1); -#endif -} -EXPORT_SYMBOL(drm_clflush_pages); |