Messages in this thread Patch in this message |  | | From | Max Filippov <> | Subject | [PATCH 5/6] xtensa: add xtensa_xsr macro | Date | Fri, 15 Apr 2022 21:25:58 -0700 |
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xtensa_xsr does the XSR instruction for the specified special register.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> --- arch/xtensa/include/asm/processor.h | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h index 4489a27d527a..76bc63127c66 100644 --- a/arch/xtensa/include/asm/processor.h +++ b/arch/xtensa/include/asm/processor.h @@ -246,6 +246,13 @@ extern unsigned long __get_wchan(struct task_struct *p); v; \ }) +#define xtensa_xsr(x, sr) \ + ({ \ + unsigned int __v__ = (unsigned int)(x); \ + __asm__ __volatile__ ("xsr %0, " __stringify(sr) : "+a"(__v__)); \ + __v__; \ + }) + #if XCHAL_HAVE_EXTERN_REGS static inline void set_er(unsigned long value, unsigned long addr) -- 2.30.2
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