Merge tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6-microblaze.git] / arch / x86 / include / asm / crash_core.h

diff --git a/arch/x86/include/asm/crash_core.h b/arch/x86/include/asm/crash_core.h
deleted file mode 100644 (file)
index 76af98f..0000000
--- a/arch/x86/include/asm/crash_core.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _X86_CRASH_CORE_H
-#define _X86_CRASH_CORE_H
-
-/* 16M alignment for crash kernel regions */
-#define CRASH_ALIGN             SZ_16M
-
-/*
- * Keep the crash kernel below this limit.
- *
- * Earlier 32-bits kernels would limit the kernel to the low 512 MB range
- * due to mapping restrictions.
- *
- * 64-bit kdump kernels need to be restricted to be under 64 TB, which is
- * the upper limit of system RAM in 4-level paging mode. Since the kdump
- * jump could be from 5-level paging to 4-level paging, the jump will fail if
- * the kernel is put above 64 TB, and during the 1st kernel bootup there's
- * no good way to detect the paging mode of the target kernel which will be
- * loaded for dumping.
- */
-extern unsigned long swiotlb_size_or_default(void);
-
-#ifdef CONFIG_X86_32
-# define CRASH_ADDR_LOW_MAX     SZ_512M
-# define CRASH_ADDR_HIGH_MAX    SZ_512M
-#else
-# define CRASH_ADDR_LOW_MAX     SZ_4G
-# define CRASH_ADDR_HIGH_MAX    SZ_64T
-#endif
-
-# define DEFAULT_CRASH_KERNEL_LOW_SIZE crash_low_size_default()
-
-static inline unsigned long crash_low_size_default(void)
-{
-#ifdef CONFIG_X86_64
-       return max(swiotlb_size_or_default() + (8UL << 20), 256UL << 20);
-#else
-       return 0;
-#endif
-}
-
-#endif /* _X86_CRASH_CORE_H */