mirror of https://gitee.com/openkylin/linux.git
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
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#ifndef _ASM_NOPS_H
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#define _ASM_NOPS_H 1
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/* Define nops for use with alternative() */
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/* generic versions from gas */
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#define GENERIC_NOP1 ".byte 0x90\n"
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#define GENERIC_NOP2 ".byte 0x89,0xf6\n"
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#define GENERIC_NOP3 ".byte 0x8d,0x76,0x00\n"
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#define GENERIC_NOP4 ".byte 0x8d,0x74,0x26,0x00\n"
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#define GENERIC_NOP5 GENERIC_NOP1 GENERIC_NOP4
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#define GENERIC_NOP6 ".byte 0x8d,0xb6,0x00,0x00,0x00,0x00\n"
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#define GENERIC_NOP7 ".byte 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00\n"
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#define GENERIC_NOP8 GENERIC_NOP1 GENERIC_NOP7
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/* Opteron 64bit nops */
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#define K8_NOP1 GENERIC_NOP1
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#define K8_NOP2 ".byte 0x66,0x90\n"
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#define K8_NOP3 ".byte 0x66,0x66,0x90\n"
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#define K8_NOP4 ".byte 0x66,0x66,0x66,0x90\n"
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#define K8_NOP5 K8_NOP3 K8_NOP2
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#define K8_NOP6 K8_NOP3 K8_NOP3
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#define K8_NOP7 K8_NOP4 K8_NOP3
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#define K8_NOP8 K8_NOP4 K8_NOP4
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/* K7 nops */
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/* uses eax dependencies (arbitary choice) */
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#define K7_NOP1 GENERIC_NOP1
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#define K7_NOP2 ".byte 0x8b,0xc0\n"
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#define K7_NOP3 ".byte 0x8d,0x04,0x20\n"
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#define K7_NOP4 ".byte 0x8d,0x44,0x20,0x00\n"
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#define K7_NOP5 K7_NOP4 ASM_NOP1
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#define K7_NOP6 ".byte 0x8d,0x80,0,0,0,0\n"
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#define K7_NOP7 ".byte 0x8D,0x04,0x05,0,0,0,0\n"
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#define K7_NOP8 K7_NOP7 ASM_NOP1
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/* P6 nops */
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/* uses eax dependencies (Intel-recommended choice) */
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#define P6_NOP1 GENERIC_NOP1
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#define P6_NOP2 ".byte 0x66,0x90\n"
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#define P6_NOP3 ".byte 0x0f,0x1f,0x00\n"
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#define P6_NOP4 ".byte 0x0f,0x1f,0x40,0\n"
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#define P6_NOP5 ".byte 0x0f,0x1f,0x44,0x00,0\n"
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#define P6_NOP6 ".byte 0x66,0x0f,0x1f,0x44,0x00,0\n"
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#define P6_NOP7 ".byte 0x0f,0x1f,0x80,0,0,0,0\n"
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#define P6_NOP8 ".byte 0x0f,0x1f,0x84,0x00,0,0,0,0\n"
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#if defined(CONFIG_MK8)
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#define ASM_NOP1 K8_NOP1
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#define ASM_NOP2 K8_NOP2
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#define ASM_NOP3 K8_NOP3
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#define ASM_NOP4 K8_NOP4
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#define ASM_NOP5 K8_NOP5
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#define ASM_NOP6 K8_NOP6
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#define ASM_NOP7 K8_NOP7
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#define ASM_NOP8 K8_NOP8
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#elif defined(CONFIG_MK7)
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#define ASM_NOP1 K7_NOP1
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#define ASM_NOP2 K7_NOP2
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#define ASM_NOP3 K7_NOP3
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#define ASM_NOP4 K7_NOP4
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#define ASM_NOP5 K7_NOP5
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#define ASM_NOP6 K7_NOP6
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#define ASM_NOP7 K7_NOP7
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#define ASM_NOP8 K7_NOP8
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#elif defined(CONFIG_M686) || defined(CONFIG_MPENTIUMII) || \
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defined(CONFIG_MPENTIUMIII) || defined(CONFIG_MPENTIUMM) || \
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defined(CONFIG_MCORE2) || defined(CONFIG_PENTIUM4)
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#define ASM_NOP1 P6_NOP1
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#define ASM_NOP2 P6_NOP2
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#define ASM_NOP3 P6_NOP3
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#define ASM_NOP4 P6_NOP4
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#define ASM_NOP5 P6_NOP5
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#define ASM_NOP6 P6_NOP6
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#define ASM_NOP7 P6_NOP7
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#define ASM_NOP8 P6_NOP8
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#else
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#define ASM_NOP1 GENERIC_NOP1
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#define ASM_NOP2 GENERIC_NOP2
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#define ASM_NOP3 GENERIC_NOP3
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#define ASM_NOP4 GENERIC_NOP4
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#define ASM_NOP5 GENERIC_NOP5
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#define ASM_NOP6 GENERIC_NOP6
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#define ASM_NOP7 GENERIC_NOP7
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#define ASM_NOP8 GENERIC_NOP8
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#endif
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#define ASM_NOP_MAX 8
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#endif
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