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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.c100
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);