include/asm-microblaze/asm.h

   1 /*
   2  * (C) Copyright 2007 Michal Simek
   3  *
   4  * Michal  SIMEK <monstr@monstr.eu>
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  */
  24
  25 /* FSL macros */
  26 #define NGET(val, fslnum) \
  27         __asm__ __volatile__ ("nget %0, rfsl" #fslnum :"=r" (val));
  28
  29 #define GET(val, fslnum) \
  30         __asm__ __volatile__ ("get %0, rfsl" #fslnum :"=r" (val));
  31
  32 #define NCGET(val, fslnum) \
  33         __asm__ __volatile__ ("ncget %0, rfsl" #fslnum :"=r" (val));
  34
  35 #define CGET(val, fslnum) \
  36         __asm__ __volatile__ ("cget %0, rfsl" #fslnum :"=r" (val));
  37
  38 #define NPUT(val, fslnum) \
  39         __asm__ __volatile__ ("nput %0, rfsl" #fslnum ::"r" (val));
  40
  41 #define PUT(val, fslnum) \
  42         __asm__ __volatile__ ("put %0, rfsl" #fslnum ::"r" (val));
  43
  44 #define NCPUT(val, fslnum) \
  45         __asm__ __volatile__ ("ncput %0, rfsl" #fslnum ::"r" (val));
  46
  47 #define CPUT(val, fslnum) \
  48         __asm__ __volatile__ ("cput %0, rfsl" #fslnum ::"r" (val));
  49
  50 /* CPU dependent */
  51 /* machine status register */
  52 #define MFS(val, reg) \
  53         __asm__ __volatile__ ("mfs %0," #reg :"=r" (val));
  54
  55 #define MTS(val, reg) \
  56         __asm__ __volatile__ ("mts " #reg ", %0"::"r" (val));
  57
  58 /* get return address from interrupt */
  59 #define R14(val) \
  60         __asm__ __volatile__ ("addi %0, r14, 0":"=r" (val));
  61
  62 #define NOP     __asm__ __volatile__ ("nop");
  63
  64 /* use machine status registe USE_MSR_REG */
  65 #ifdef XILINX_USE_MSR_INSTR
  66 #define MSRSET(val) \
  67         __asm__ __volatile__ ("msrset r0," #val );
  68
  69 #define MSRCLR(val) \
  70         __asm__ __volatile__ ("msrclr r0," #val );
  71
  72 #else
  73 #define MSRSET(val)                                             \
  74 {                                                               \
  75         register unsigned tmp;                                  \
  76         __asm__ __volatile__ ("                                 \
  77                         mfs     %0, rmsr;                       \
  78                         ori     %0, %0, "#val";                 \
  79                         mts     rmsr, %0;                       \
  80                         nop;"                                   \
  81                         : "=r" (tmp)                            \
  82                         : "d" (val)                             \
  83                         : "memory");                            \
  84 }
  85
  86 #define MSRCLR(val)                                             \
  87 {                                                               \
  88         register unsigned tmp;                                  \
  89         __asm__ __volatile__ ("                                 \
  90                         mfs     %0, rmsr;                       \
  91                         andi    %0, %0, ~"#val";                \
  92                         mts     rmsr, %0;                       \
  93                         nop;"                                   \
  94                         : "=r" (tmp)                            \
  95                         : "d" (val)                             \
  96                         : "memory");                            \
  97 }
  98 #endif