250 lines
7.3 KiB
C
250 lines
7.3 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2014 - 2016 Xilinx, Inc. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*
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*
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******************************************************************************/
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/*****************************************************************************/
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/**
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*
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* @file xpseudo_asm_gcc.h
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*
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* This header file contains macros for using inline assembler code. It is
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* written specifically for the GNU compiler.
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*
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* <pre>
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* MODIFICATION HISTORY:
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*
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* Ver Who Date Changes
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* ----- -------- -------- -----------------------------------------------
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* 5.00 pkp 05/21/14 First release
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* 6.0 mus 07/27/16 Consolidated file for a53,a9 and r5 processors
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* </pre>
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*
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******************************************************************************/
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#ifndef XPSEUDO_ASM_GCC_H /* prevent circular inclusions */
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#define XPSEUDO_ASM_GCC_H /* by using protection macros */
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/***************************** Include Files ********************************/
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#include <rtdef.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/************************** Constant Definitions ****************************/
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/**************************** Type Definitions ******************************/
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/***************** Macros (Inline Functions) Definitions ********************/
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/* necessary for pre-processor */
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#define stringify(s) tostring(s)
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#define tostring(s) #s
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#if defined (__aarch64__)
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/* pseudo assembler instructions */
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#define mfcpsr() ({rt_uint32_t rval = 0U; \
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asm volatile("mrs %0, DAIF" : "=r" (rval));\
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rval;\
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})
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#define mtcpsr(v) __asm__ __volatile__ ("msr DAIF, %0" : : "r" (v))
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#define cpsiei() //__asm__ __volatile__("cpsie i\n")
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#define cpsidi() //__asm__ __volatile__("cpsid i\n")
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#define cpsief() //__asm__ __volatile__("cpsie f\n")
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#define cpsidf() //__asm__ __volatile__("cpsid f\n")
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#define mtgpr(rn, v) /*__asm__ __volatile__(\
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"mov r" stringify(rn) ", %0 \n"\
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: : "r" (v)\
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)*/
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#define mfgpr(rn) /*({rt_uint32_t rval; \
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__asm__ __volatile__(\
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"mov %0,r" stringify(rn) "\n"\
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: "=r" (rval)\
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);\
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rval;\
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})*/
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/* memory synchronization operations */
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/* Instruction Synchronization Barrier */
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#define isb() __asm__ __volatile__ ("isb sy")
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/* Data Synchronization Barrier */
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#define dsb() __asm__ __volatile__("dsb sy")
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/* Data Memory Barrier */
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#define dmb() __asm__ __volatile__("dmb sy")
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/* Memory Operations */
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#define ldr(adr) ({u64 rval; \
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__asm__ __volatile__(\
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"ldr %0,[%1]"\
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: "=r" (rval) : "r" (adr)\
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);\
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rval;\
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})
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#define mfelrel3() ({u64 rval = 0U; \
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asm volatile("mrs %0, ELR_EL3" : "=r" (rval));\
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rval;\
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})
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#define mtelrel3(v) __asm__ __volatile__ ("msr ELR_EL3, %0" : : "r" (v))
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#else
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/* pseudo assembler instructions */
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#define mfcpsr() ({rt_uint32_t rval = 0U; \
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__asm__ __volatile__(\
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"mrs %0, cpsr\n"\
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: "=r" (rval)\
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);\
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rval;\
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})
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#define mtcpsr(v) __asm__ __volatile__(\
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"msr cpsr,%0\n"\
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: : "r" (v)\
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)
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#define cpsiei() __asm__ __volatile__("cpsie i\n")
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#define cpsidi() __asm__ __volatile__("cpsid i\n")
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#define cpsief() __asm__ __volatile__("cpsie f\n")
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#define cpsidf() __asm__ __volatile__("cpsid f\n")
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#define mtgpr(rn, v) __asm__ __volatile__(\
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"mov r" stringify(rn) ", %0 \n"\
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: : "r" (v)\
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)
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#define mfgpr(rn) ({rt_uint32_t rval; \
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__asm__ __volatile__(\
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"mov %0,r" stringify(rn) "\n"\
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: "=r" (rval)\
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);\
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rval;\
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})
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/* memory synchronization operations */
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/* Instruction Synchronization Barrier */
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#define isb() __asm__ __volatile__ ("isb" : : : "memory")
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/* Data Synchronization Barrier */
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#define dsb() __asm__ __volatile__ ("dsb" : : : "memory")
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/* Data Memory Barrier */
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#define dmb() __asm__ __volatile__ ("dmb" : : : "memory")
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/* Memory Operations */
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#define ldr(adr) ({rt_uint32_t rval; \
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__asm__ __volatile__(\
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"ldr %0,[%1]"\
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: "=r" (rval) : "r" (adr)\
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);\
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rval;\
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})
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#endif
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#define ldrb(adr) ({rt_uint8_t rval; \
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__asm__ __volatile__(\
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"ldrb %0,[%1]"\
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: "=r" (rval) : "r" (adr)\
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);\
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rval;\
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})
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#define str(adr, val) __asm__ __volatile__(\
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"str %0,[%1]\n"\
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: : "r" (val), "r" (adr)\
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)
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#define strb(adr, val) __asm__ __volatile__(\
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"strb %0,[%1]\n"\
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: : "r" (val), "r" (adr)\
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)
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/* Count leading zeroes (clz) */
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#define clz(arg) ({rt_uint8_t rval; \
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__asm__ __volatile__(\
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"clz %0,%1"\
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: "=r" (rval) : "r" (arg)\
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);\
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rval;\
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})
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#if defined (__aarch64__)
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#define mtcpdc(reg,val) __asm__ __volatile__("dc " #reg ",%0" : : "r" (val))
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#define mtcpic(reg,val) __asm__ __volatile__("ic " #reg ",%0" : : "r" (val))
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#define mtcpicall(reg) __asm__ __volatile__("ic " #reg)
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#define mtcptlbi(reg) __asm__ __volatile__("tlbi " #reg)
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#define mtcpat(reg,val) __asm__ __volatile__("at " #reg ",%0" : : "r" (val))
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/* CP15 operations */
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#define mfcp(reg) ({u64 rval = 0U;\
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__asm__ __volatile__("mrs %0, " #reg : "=r" (rval));\
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rval;\
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})
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#define mtcp(reg,val) __asm__ __volatile__("msr " #reg ",%0" : : "r" (val))
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#else
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/* CP15 operations */
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#define mtcp(rn, v) __asm__ __volatile__(\
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"mcr " rn "\n"\
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: : "r" (v)\
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);
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#define mfcp(rn) ({rt_uint32_t rval = 0U; \
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__asm__ __volatile__(\
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"mrc " rn "\n"\
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: "=r" (rval)\
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);\
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rval;\
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})
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#endif
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/************************** Variable Definitions ****************************/
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/************************** Function Prototypes *****************************/
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* XPSEUDO_ASM_GCC_H */
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