diff options
Diffstat (limited to 'drivers/staging/unisys/visorbus/iovmcall_gnuc.h')
-rw-r--r-- | drivers/staging/unisys/visorbus/iovmcall_gnuc.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/staging/unisys/visorbus/iovmcall_gnuc.h b/drivers/staging/unisys/visorbus/iovmcall_gnuc.h new file mode 100644 index 0000000..57dd93e --- /dev/null +++ b/drivers/staging/unisys/visorbus/iovmcall_gnuc.h @@ -0,0 +1,49 @@ +/* Copyright (C) 2010 - 2013 UNISYS CORPORATION + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + */ + +/* Linux GCC Version (32-bit and 64-bit) */ +static inline unsigned long +__unisys_vmcall_gnuc(unsigned long tuple, unsigned long reg_ebx, + unsigned long reg_ecx) +{ + unsigned long result = 0; + unsigned int cpuid_eax, cpuid_ebx, cpuid_ecx, cpuid_edx; + + cpuid(0x00000001, &cpuid_eax, &cpuid_ebx, &cpuid_ecx, &cpuid_edx); + if (!(cpuid_ecx & 0x80000000)) + return -1; + + __asm__ __volatile__(".byte 0x00f, 0x001, 0x0c1" : "=a"(result) : + "a"(tuple), "b"(reg_ebx), "c"(reg_ecx)); + return result; +} + +static inline unsigned long +__unisys_extended_vmcall_gnuc(unsigned long long tuple, + unsigned long long reg_ebx, + unsigned long long reg_ecx, + unsigned long long reg_edx) +{ + unsigned long result = 0; + unsigned int cpuid_eax, cpuid_ebx, cpuid_ecx, cpuid_edx; + + cpuid(0x00000001, &cpuid_eax, &cpuid_ebx, &cpuid_ecx, &cpuid_edx); + if (!(cpuid_ecx & 0x80000000)) + return -1; + + __asm__ __volatile__(".byte 0x00f, 0x001, 0x0c1" : "=a"(result) : + "a"(tuple), "b"(reg_ebx), "c"(reg_ecx), "d"(reg_edx)); + return result; +} |