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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/x86/include/asm/page_32.h
parentInitial commit. (diff)
downloadlinux-upstream/4.19.249.tar.xz
linux-upstream/4.19.249.zip
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/x86/include/asm/page_32.h')
-rw-r--r--arch/x86/include/asm/page_32.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/x86/include/asm/page_32.h b/arch/x86/include/asm/page_32.h
new file mode 100644
index 000000000..94dbd51df
--- /dev/null
+++ b/arch/x86/include/asm/page_32.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_PAGE_32_H
+#define _ASM_X86_PAGE_32_H
+
+#include <asm/page_32_types.h>
+
+#ifndef __ASSEMBLY__
+
+#define __phys_addr_nodebug(x) ((x) - PAGE_OFFSET)
+#ifdef CONFIG_DEBUG_VIRTUAL
+extern unsigned long __phys_addr(unsigned long);
+#else
+#define __phys_addr(x) __phys_addr_nodebug(x)
+#endif
+#define __phys_addr_symbol(x) __phys_addr(x)
+#define __phys_reloc_hide(x) RELOC_HIDE((x), 0)
+
+#ifdef CONFIG_FLATMEM
+#define pfn_valid(pfn) ((pfn) < max_mapnr)
+#endif /* CONFIG_FLATMEM */
+
+#ifdef CONFIG_X86_USE_3DNOW
+#include <asm/mmx.h>
+
+static inline void clear_page(void *page)
+{
+ mmx_clear_page(page);
+}
+
+static inline void copy_page(void *to, void *from)
+{
+ mmx_copy_page(to, from);
+}
+#else /* !CONFIG_X86_USE_3DNOW */
+#include <linux/string.h>
+
+static inline void clear_page(void *page)
+{
+ memset(page, 0, PAGE_SIZE);
+}
+
+static inline void copy_page(void *to, void *from)
+{
+ memcpy(to, from, PAGE_SIZE);
+}
+#endif /* CONFIG_X86_3DNOW */
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_X86_PAGE_32_H */