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authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-28 13:24:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-28 13:24:43 -0700
commite7bd807e8c9e37b0eef24e13df1f0619c39dc559 (patch)
tree5af6ad55afeb546dbbc3ea0ad35c4b603bcedfaa /arch/m68k/include/asm/segment.h
parentdca50f08a03eba5bc7a6afecca3f8ab0029b7a6e (diff)
parent9fde0348640252c79d462c4d29a09a14e8741f5c (diff)
Merge tag 'm68k-for-v5.15-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull more m68k updates from Geert Uytterhoeven: - signal handling fixes - removal of set_fs() [ The set_fs removal isn't strictly a fix, but it's been pending for a while and is very welcome. The signal handling fixes resolved an issue that was incorrectly attributed to the set_fs changes - Linus ] * tag 'm68k-for-v5.15-tag3' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Remove set_fs() m68k: Provide __{get,put}_kernel_nofault m68k: Factor the 8-byte lowlevel {get,put}_user code into helpers m68k: Use BUILD_BUG for passing invalid sizes to get_user/put_user m68k: Remove the 030 case in virt_to_phys_slow m68k: Document that access_ok is broken for !CONFIG_CPU_HAS_ADDRESS_SPACES m68k: Leave stack mangling to asm wrapper of sigreturn() m68k: Update ->thread.esp0 before calling syscall_trace() in ret_from_signal m68k: Handle arrivals of multiple signals correctly
Diffstat (limited to 'arch/m68k/include/asm/segment.h')
-rw-r--r--arch/m68k/include/asm/segment.h59
1 files changed, 0 insertions, 59 deletions
diff --git a/arch/m68k/include/asm/segment.h b/arch/m68k/include/asm/segment.h
deleted file mode 100644
index 2b5e68a71ef7..000000000000
--- a/arch/m68k/include/asm/segment.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _M68K_SEGMENT_H
-#define _M68K_SEGMENT_H
-
-/* define constants */
-/* Address spaces (FC0-FC2) */
-#define USER_DATA (1)
-#ifndef __USER_DS
-#define __USER_DS (USER_DATA)
-#endif
-#define USER_PROGRAM (2)
-#define SUPER_DATA (5)
-#ifndef __KERNEL_DS
-#define __KERNEL_DS (SUPER_DATA)
-#endif
-#define SUPER_PROGRAM (6)
-#define CPU_SPACE (7)
-
-#ifndef __ASSEMBLY__
-
-typedef struct {
- unsigned long seg;
-} mm_segment_t;
-
-#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
-
-#ifdef CONFIG_CPU_HAS_ADDRESS_SPACES
-/*
- * Get/set the SFC/DFC registers for MOVES instructions
- */
-#define USER_DS MAKE_MM_SEG(__USER_DS)
-#define KERNEL_DS MAKE_MM_SEG(__KERNEL_DS)
-
-static inline mm_segment_t get_fs(void)
-{
- mm_segment_t _v;
- __asm__ ("movec %/dfc,%0":"=r" (_v.seg):);
- return _v;
-}
-
-static inline void set_fs(mm_segment_t val)
-{
- __asm__ __volatile__ ("movec %0,%/sfc\n\t"
- "movec %0,%/dfc\n\t"
- : /* no outputs */ : "r" (val.seg) : "memory");
-}
-
-#else
-#define USER_DS MAKE_MM_SEG(TASK_SIZE)
-#define KERNEL_DS MAKE_MM_SEG(0xFFFFFFFF)
-#define get_fs() (current_thread_info()->addr_limit)
-#define set_fs(x) (current_thread_info()->addr_limit = (x))
-#endif
-
-#define uaccess_kernel() (get_fs().seg == KERNEL_DS.seg)
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _M68K_SEGMENT_H */