1 /* $NetBSD: frameasm.h,v 1.5 2004/05/12 20:03:06 yamt Exp $ */ 2 3 #ifndef _I386_FRAMEASM_H_ 4 #define _I386_FRAMEASM_H_ 5 6 #ifdef _KERNEL_OPT 7 #include "opt_multiprocessor.h" 8 #endif 9 10 #ifndef TRAPLOG 11 #define TLOG /**/ 12 #else 13 /* 14 * Fill in trap record 15 */ 16 #define TLOG \ 17 9: \ 18 movl %fs:CPU_TLOG_OFFSET, %eax; \ 19 movl %fs:CPU_TLOG_BASE, %ebx; \ 20 addl $SIZEOF_TREC,%eax; \ 21 andl $SIZEOF_TLOG-1,%eax; \ 22 addl %eax,%ebx; \ 23 movl %eax,%fs:CPU_TLOG_OFFSET; \ 24 movl %esp,TREC_SP(%ebx); \ 25 movl $9b,TREC_HPC(%ebx); \ 26 movl TF_EIP(%esp),%eax; \ 27 movl %eax,TREC_IPC(%ebx); \ 28 rdtsc ; \ 29 movl %eax,TREC_TSC(%ebx); \ 30 movl $MSR_LASTBRANCHFROMIP,%ecx; \ 31 rdmsr ; \ 32 movl %eax,TREC_LBF(%ebx); \ 33 incl %ecx ; \ 34 rdmsr ; \ 35 movl %eax,TREC_LBT(%ebx); \ 36 incl %ecx ; \ 37 rdmsr ; \ 38 movl %eax,TREC_IBF(%ebx); \ 39 incl %ecx ; \ 40 rdmsr ; \ 41 movl %eax,TREC_IBT(%ebx) 42 #endif 43 44 /* 45 * These are used on interrupt or trap entry or exit. 46 */ 47 #define INTRENTRY \ 48 subl $TF_PUSHSIZE,%esp ; \ 49 movl %gs,TF_GS(%esp) ; \ 50 movl %fs,TF_FS(%esp) ; \ 51 movl %eax,TF_EAX(%esp) ; \ 52 movl %es,TF_ES(%esp) ; \ 53 movl %ds,TF_DS(%esp) ; \ 54 movl $GSEL(GDATA_SEL, SEL_KPL),%eax ; \ 55 movl %edi,TF_EDI(%esp) ; \ 56 movl %esi,TF_ESI(%esp) ; \ 57 movl %eax,%ds ; \ 58 movl %ebp,TF_EBP(%esp) ; \ 59 movl %eax,%es ; \ 60 movl %ebx,TF_EBX(%esp) ; \ 61 movl %eax,%gs ; \ 62 movl %edx,TF_EDX(%esp) ; \ 63 movl $GSEL(GCPU_SEL, SEL_KPL),%eax ; \ 64 movl %ecx,TF_ECX(%esp) ; \ 65 movl %eax,%fs ; \ 66 TLOG 67 68 /* 69 * INTRFASTEXIT should be in sync with trap(), resume_iret and friends. 70 */ 71 #define INTRFASTEXIT \ 72 movl TF_GS(%esp),%gs ; \ 73 movl TF_FS(%esp),%fs ; \ 74 movl TF_ES(%esp),%es ; \ 75 movl TF_DS(%esp),%ds ; \ 76 movl TF_EDI(%esp),%edi ; \ 77 movl TF_ESI(%esp),%esi ; \ 78 movl TF_EBP(%esp),%ebp ; \ 79 movl TF_EBX(%esp),%ebx ; \ 80 movl TF_EDX(%esp),%edx ; \ 81 movl TF_ECX(%esp),%ecx ; \ 82 movl TF_EAX(%esp),%eax ; \ 83 addl $(TF_PUSHSIZE+8),%esp ; \ 84 iret 85 86 #define DO_DEFERRED_SWITCH(reg) \ 87 cmpl $0, CPUVAR(WANT_PMAPLOAD) ; \ 88 jz 1f ; \ 89 call _C_LABEL(pmap_load) ; \ 90 1: 91 92 #define CHECK_DEFERRED_SWITCH(reg) \ 93 cmpl $0, CPUVAR(WANT_PMAPLOAD) 94 95 #define CHECK_ASTPENDING(reg) movl CPUVAR(CURLWP),reg ; \ 96 cmpl $0, reg ; \ 97 je 1f ; \ 98 movl L_PROC(reg),reg ; \ 99 cmpl $0, P_MD_ASTPENDING(reg); \ 100 1: 101 #define CLEAR_ASTPENDING(reg) movl $0, P_MD_ASTPENDING(reg) 102 103 #endif /* _I386_FRAMEASM_H_ */ 104