X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;ds=sidebyside;f=qemu%2Froms%2Fu-boot%2Farch%2Fsparc%2Finclude%2Fasm%2Fprocessor.h;fp=qemu%2Froms%2Fu-boot%2Farch%2Fsparc%2Finclude%2Fasm%2Fprocessor.h;h=9a6535d30df1f55c66a9a507388b6ee7b812f5bd;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git diff --git a/qemu/roms/u-boot/arch/sparc/include/asm/processor.h b/qemu/roms/u-boot/arch/sparc/include/asm/processor.h new file mode 100644 index 000000000..9a6535d30 --- /dev/null +++ b/qemu/roms/u-boot/arch/sparc/include/asm/processor.h @@ -0,0 +1,102 @@ +/* SPARC Processor specifics + * taken from the SPARC port of Linux (ptrace.h). + * + * (C) Copyright 2007 + * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __ASM_SPARC_PROCESSOR_H +#define __ASM_SPARC_PROCESSOR_H + +#include + +#ifdef CONFIG_LEON + +/* All LEON processors supported */ +#include + +#else +/* other processors */ +#error Unknown SPARC Processor +#endif + +#ifndef __ASSEMBLY__ + +/* flush data cache */ +static __inline__ void sparc_dcache_flush_all(void) +{ + __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"::"i"(ASI_DFLUSH):"memory"); +} + +/* flush instruction cache */ +static __inline__ void sparc_icache_flush_all(void) +{ + __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t"::"i"(ASI_IFLUSH):"memory"); +} + +/* do a cache miss load */ +static __inline__ unsigned long long sparc_load_reg_cachemiss_qword(unsigned + long paddr) +{ + unsigned long long retval; + __asm__ __volatile__("ldda [%1] %2, %0\n\t": + "=r"(retval):"r"(paddr), "i"(ASI_CACHEMISS)); + return retval; +} + +static __inline__ unsigned long sparc_load_reg_cachemiss(unsigned long paddr) +{ + unsigned long retval; + __asm__ __volatile__("lda [%1] %2, %0\n\t": + "=r"(retval):"r"(paddr), "i"(ASI_CACHEMISS)); + return retval; +} + +static __inline__ unsigned short sparc_load_reg_cachemiss_word(unsigned long + paddr) +{ + unsigned short retval; + __asm__ __volatile__("lduha [%1] %2, %0\n\t": + "=r"(retval):"r"(paddr), "i"(ASI_CACHEMISS)); + return retval; +} + +static __inline__ unsigned char sparc_load_reg_cachemiss_byte(unsigned long + paddr) +{ + unsigned char retval; + __asm__ __volatile__("lduba [%1] %2, %0\n\t": + "=r"(retval):"r"(paddr), "i"(ASI_CACHEMISS)); + return retval; +} + +/* do a physical address bypass write, i.e. for 0x80000000 */ +static __inline__ void sparc_store_reg_bypass(unsigned long paddr, + unsigned long value) +{ + __asm__ __volatile__("sta %0, [%1] %2\n\t"::"r"(value), "r"(paddr), + "i"(ASI_BYPASS):"memory"); +} + +static __inline__ unsigned long sparc_load_reg_bypass(unsigned long paddr) +{ + unsigned long retval; + __asm__ __volatile__("lda [%1] %2, %0\n\t": + "=r"(retval):"r"(paddr), "i"(ASI_BYPASS)); + return retval; +} + +/* Macros for bypassing cache when reading */ +#define SPARC_NOCACHE_READ_DWORD(address) sparc_load_reg_cachemiss_qword((unsigned int)(address)) +#define SPARC_NOCACHE_READ(address) sparc_load_reg_cachemiss((unsigned int)(address)) +#define SPARC_NOCACHE_READ_HWORD(address) sparc_load_reg_cachemiss_word((unsigned int)(address)) +#define SPARC_NOCACHE_READ_BYTE(address) sparc_load_reg_cachemiss_byte((unsigned int)(address)) + +#define SPARC_BYPASS_READ(address) sparc_load_reg_bypass((unsigned int)(address)) +#define SPARC_BYPASS_WRITE(address,value) sparc_store_reg_bypass((unsigned int)(address),(unsigned int)(value)) + +#endif + +#endif /* __ASM_SPARC_PROCESSOR_H */