diff options
author | Arnd Bergmann | 2022-04-04 14:42:49 +0200 |
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committer | Arnd Bergmann | 2022-04-04 14:42:49 +0200 |
commit | fba2689ee77e63b05e203b3f26079ef915e55660 (patch) | |
tree | 96c8aab24d1bcff859c55d30cd1192bb329ac945 /arch/h8300/include/asm/irqflags.h | |
parent | 3123109284176b1532874591f7c81f3837bbdc17 (diff) | |
parent | 1c4b5ecb7ea190fa3e9f9d6891e6c90b60e04f24 (diff) |
Merge branch 'remove-h8300' of git://git.infradead.org/users/hch/misc into asm-generic
* 'remove-h8300' of git://git.infradead.org/users/hch/misc:
remove the h8300 architecture
This is clearly the least actively maintained architecture we have at
the moment, and probably the least useful. It is now the only one that
does not support MMUs at all, and most of the boards only support 4MB
of RAM, out of which the defconfig kernel needs more than half just
for .text/.data.
Guenter Roeck did the original patch to remove the architecture in 2013
after it had already been obsolete for a while, and Yoshinori Sato brought
it back in a much more modern form in 2015. Looking at the git history
since the reinstantiation, it's clear that almost all commits in the tree
are build fixes or cross-architecture cleanups:
$ git log --no-merges --format=%an v4.5.. arch/h8300/ | sort | uniq
-c | sort -rn | head -n 12
25 Masahiro Yamada
18 Christoph Hellwig
14 Mike Rapoport
9 Arnd Bergmann
8 Mark Rutland
7 Peter Zijlstra
6 Kees Cook
6 Ingo Molnar
6 Al Viro
5 Randy Dunlap
4 Yury Norov
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/h8300/include/asm/irqflags.h')
-rw-r--r-- | arch/h8300/include/asm/irqflags.h | 97 |
1 files changed, 0 insertions, 97 deletions
diff --git a/arch/h8300/include/asm/irqflags.h b/arch/h8300/include/asm/irqflags.h deleted file mode 100644 index 48756b7f405e..000000000000 --- a/arch/h8300/include/asm/irqflags.h +++ /dev/null @@ -1,97 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _H8300_IRQFLAGS_H -#define _H8300_IRQFLAGS_H - -#ifdef CONFIG_CPU_H8300H -typedef unsigned char h8300flags; - -static inline h8300flags arch_local_save_flags(void) -{ - h8300flags flags; - - __asm__ volatile ("stc ccr,%w0" : "=r" (flags)); - return flags; -} - -static inline void arch_local_irq_disable(void) -{ - __asm__ volatile ("orc #0xc0,ccr"); -} - -static inline void arch_local_irq_enable(void) -{ - __asm__ volatile ("andc #0x3f,ccr"); -} - -static inline h8300flags arch_local_irq_save(void) -{ - h8300flags flags; - - __asm__ volatile ("stc ccr,%w0\n\t" - "orc #0xc0,ccr" : "=r" (flags)); - return flags; -} - -static inline void arch_local_irq_restore(h8300flags flags) -{ - __asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc"); -} - -static inline int arch_irqs_disabled_flags(unsigned long flags) -{ - return (flags & 0xc0) == 0xc0; -} -#endif -#ifdef CONFIG_CPU_H8S -typedef unsigned short h8300flags; - -static inline h8300flags arch_local_save_flags(void) -{ - h8300flags flags; - - __asm__ volatile ("stc ccr,%w0\n\tstc exr,%x0" : "=r" (flags)); - return flags; -} - -static inline void arch_local_irq_disable(void) -{ - __asm__ volatile ("orc #0x80,ccr\n\t"); -} - -static inline void arch_local_irq_enable(void) -{ - __asm__ volatile ("andc #0x7f,ccr\n\t" - "andc #0xf0,exr\n\t"); -} - -static inline h8300flags arch_local_irq_save(void) -{ - h8300flags flags; - - __asm__ volatile ("stc ccr,%w0\n\t" - "stc exr,%x0\n\t" - "orc #0x80,ccr\n\t" - : "=r" (flags)); - return flags; -} - -static inline void arch_local_irq_restore(h8300flags flags) -{ - __asm__ volatile ("ldc %w0,ccr\n\t" - "ldc %x0,exr" - : : "r" (flags) : "cc"); -} - -static inline int arch_irqs_disabled_flags(h8300flags flags) -{ - return (flags & 0x0080) == 0x0080; -} - -#endif - -static inline int arch_irqs_disabled(void) -{ - return arch_irqs_disabled_flags(arch_local_save_flags()); -} - -#endif /* _H8300_IRQFLAGS_H */ |