mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-03 09:00:21 +00:00
Apply the i386 SSE mods to pc98 as well.
This commit is contained in:
Peter Wemm
parent
9d146ac5d1
commit
adc3cb92c2
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=79610
@ -132,6 +132,10 @@ extern void initializecpu(void);
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#define EFL_SECURE(ef, oef) ((((ef) ^ (oef)) & ~PSL_USERCHANGE) == 0)
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static void cpu_startup __P((void *));
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#ifdef CPU_ENABLE_SSE
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static void set_fpregs_xmm __P((struct save87 *, struct savexmm *));
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static void fill_fpregs_xmm __P((struct savexmm *, struct save87 *));
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#endif /* CPU_ENABLE_SSE */
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SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL)
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#ifdef PC98
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@ -1374,7 +1378,7 @@ extern inthand_t
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IDTVEC(bnd), IDTVEC(ill), IDTVEC(dna), IDTVEC(fpusegm),
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IDTVEC(tss), IDTVEC(missing), IDTVEC(stk), IDTVEC(prot),
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IDTVEC(page), IDTVEC(mchk), IDTVEC(rsvd), IDTVEC(fpu), IDTVEC(align),
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IDTVEC(lcall_syscall), IDTVEC(int0x80_syscall);
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IDTVEC(xmm), IDTVEC(lcall_syscall), IDTVEC(int0x80_syscall);
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void
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sdtossd(sd, ssd)
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@ -1964,6 +1968,7 @@ init386(first)
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setidt(16, &IDTVEC(fpu), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL));
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setidt(17, &IDTVEC(align), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL));
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setidt(18, &IDTVEC(mchk), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL));
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setidt(19, &IDTVEC(xmm), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL));
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setidt(0x80, &IDTVEC(int0x80_syscall),
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SDT_SYS386TGT, SEL_UPL, GSEL(GCODE_SEL, SEL_KPL));
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@ -2156,8 +2161,8 @@ int ptrace_write_u(p, off, data)
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*(int*)((char *)p->p_addr + off) = data;
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return (0);
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}
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min = offsetof(struct user, u_pcb) + offsetof(struct pcb, pcb_savefpu);
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if (off >= min && off <= min + sizeof(struct save87) - sizeof(int)) {
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min = offsetof(struct user, u_pcb) + offsetof(struct pcb, pcb_save);
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if (off >= min && off <= min + sizeof(union savefpu) - sizeof(int)) {
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*(int*)((char *)p->p_addr + off) = data;
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return (0);
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}
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@ -2225,12 +2230,73 @@ set_regs(p, regs)
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return (0);
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}
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#ifdef CPU_ENABLE_SSE
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static void
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fill_fpregs_xmm(sv_xmm, sv_87)
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struct savexmm *sv_xmm;
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struct save87 *sv_87;
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{
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register struct env87 *penv_87 = &sv_87->sv_env;
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register struct envxmm *penv_xmm = &sv_xmm->sv_env;
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int i;
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/* FPU control/status */
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penv_87->en_cw = penv_xmm->en_cw;
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penv_87->en_sw = penv_xmm->en_sw;
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penv_87->en_tw = penv_xmm->en_tw;
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penv_87->en_fip = penv_xmm->en_fip;
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penv_87->en_fcs = penv_xmm->en_fcs;
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penv_87->en_opcode = penv_xmm->en_opcode;
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penv_87->en_foo = penv_xmm->en_foo;
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penv_87->en_fos = penv_xmm->en_fos;
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/* FPU registers */
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for (i = 0; i < 8; ++i)
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sv_87->sv_ac[i] = sv_xmm->sv_fp[i].fp_acc;
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sv_87->sv_ex_sw = sv_xmm->sv_ex_sw;
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}
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static void
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set_fpregs_xmm(sv_87, sv_xmm)
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struct save87 *sv_87;
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struct savexmm *sv_xmm;
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{
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register struct env87 *penv_87 = &sv_87->sv_env;
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register struct envxmm *penv_xmm = &sv_xmm->sv_env;
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int i;
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/* FPU control/status */
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penv_xmm->en_cw = penv_87->en_cw;
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penv_xmm->en_sw = penv_87->en_sw;
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penv_xmm->en_tw = penv_87->en_tw;
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penv_xmm->en_fip = penv_87->en_fip;
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penv_xmm->en_fcs = penv_87->en_fcs;
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penv_xmm->en_opcode = penv_87->en_opcode;
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penv_xmm->en_foo = penv_87->en_foo;
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penv_xmm->en_fos = penv_87->en_fos;
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/* FPU registers */
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for (i = 0; i < 8; ++i)
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sv_xmm->sv_fp[i].fp_acc = sv_87->sv_ac[i];
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sv_xmm->sv_ex_sw = sv_87->sv_ex_sw;
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}
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#endif /* CPU_ENABLE_SSE */
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int
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fill_fpregs(p, fpregs)
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struct proc *p;
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struct fpreg *fpregs;
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{
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bcopy(&p->p_addr->u_pcb.pcb_savefpu, fpregs, sizeof *fpregs);
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#ifdef CPU_ENABLE_SSE
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if (cpu_fxsr) {
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fill_fpregs_xmm(&p->p_addr->u_pcb.pcb_save.sv_xmm,
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(struct save87 *)fpregs);
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return (0);
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}
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#endif /* CPU_ENABLE_SSE */
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bcopy(&p->p_addr->u_pcb.pcb_save.sv_87, fpregs, sizeof *fpregs);
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return (0);
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}
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@ -2239,7 +2305,14 @@ set_fpregs(p, fpregs)
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struct proc *p;
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struct fpreg *fpregs;
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{
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bcopy(fpregs, &p->p_addr->u_pcb.pcb_savefpu, sizeof *fpregs);
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#ifdef CPU_ENABLE_SSE
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if (cpu_fxsr) {
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set_fpregs_xmm((struct save87 *)fpregs,
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&p->p_addr->u_pcb.pcb_save.sv_xmm);
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return (0);
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}
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#endif /* CPU_ENABLE_SSE */
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bcopy(fpregs, &p->p_addr->u_pcb.pcb_save.sv_87, sizeof *fpregs);
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return (0);
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}
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@ -132,6 +132,10 @@ extern void initializecpu(void);
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#define EFL_SECURE(ef, oef) ((((ef) ^ (oef)) & ~PSL_USERCHANGE) == 0)
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static void cpu_startup __P((void *));
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#ifdef CPU_ENABLE_SSE
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static void set_fpregs_xmm __P((struct save87 *, struct savexmm *));
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static void fill_fpregs_xmm __P((struct savexmm *, struct save87 *));
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#endif /* CPU_ENABLE_SSE */
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SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL)
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#ifdef PC98
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@ -1374,7 +1378,7 @@ extern inthand_t
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IDTVEC(bnd), IDTVEC(ill), IDTVEC(dna), IDTVEC(fpusegm),
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IDTVEC(tss), IDTVEC(missing), IDTVEC(stk), IDTVEC(prot),
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IDTVEC(page), IDTVEC(mchk), IDTVEC(rsvd), IDTVEC(fpu), IDTVEC(align),
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IDTVEC(lcall_syscall), IDTVEC(int0x80_syscall);
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IDTVEC(xmm), IDTVEC(lcall_syscall), IDTVEC(int0x80_syscall);
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void
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sdtossd(sd, ssd)
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@ -1964,6 +1968,7 @@ init386(first)
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setidt(16, &IDTVEC(fpu), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL));
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setidt(17, &IDTVEC(align), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL));
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setidt(18, &IDTVEC(mchk), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL));
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setidt(19, &IDTVEC(xmm), SDT_SYS386TGT, SEL_KPL, GSEL(GCODE_SEL, SEL_KPL));
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setidt(0x80, &IDTVEC(int0x80_syscall),
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SDT_SYS386TGT, SEL_UPL, GSEL(GCODE_SEL, SEL_KPL));
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@ -2156,8 +2161,8 @@ int ptrace_write_u(p, off, data)
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*(int*)((char *)p->p_addr + off) = data;
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return (0);
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}
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min = offsetof(struct user, u_pcb) + offsetof(struct pcb, pcb_savefpu);
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if (off >= min && off <= min + sizeof(struct save87) - sizeof(int)) {
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min = offsetof(struct user, u_pcb) + offsetof(struct pcb, pcb_save);
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if (off >= min && off <= min + sizeof(union savefpu) - sizeof(int)) {
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*(int*)((char *)p->p_addr + off) = data;
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return (0);
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}
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@ -2225,12 +2230,73 @@ set_regs(p, regs)
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return (0);
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}
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#ifdef CPU_ENABLE_SSE
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static void
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fill_fpregs_xmm(sv_xmm, sv_87)
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struct savexmm *sv_xmm;
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struct save87 *sv_87;
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{
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register struct env87 *penv_87 = &sv_87->sv_env;
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register struct envxmm *penv_xmm = &sv_xmm->sv_env;
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int i;
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/* FPU control/status */
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penv_87->en_cw = penv_xmm->en_cw;
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penv_87->en_sw = penv_xmm->en_sw;
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penv_87->en_tw = penv_xmm->en_tw;
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penv_87->en_fip = penv_xmm->en_fip;
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penv_87->en_fcs = penv_xmm->en_fcs;
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penv_87->en_opcode = penv_xmm->en_opcode;
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penv_87->en_foo = penv_xmm->en_foo;
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penv_87->en_fos = penv_xmm->en_fos;
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/* FPU registers */
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for (i = 0; i < 8; ++i)
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sv_87->sv_ac[i] = sv_xmm->sv_fp[i].fp_acc;
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sv_87->sv_ex_sw = sv_xmm->sv_ex_sw;
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}
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static void
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set_fpregs_xmm(sv_87, sv_xmm)
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struct save87 *sv_87;
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struct savexmm *sv_xmm;
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{
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register struct env87 *penv_87 = &sv_87->sv_env;
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register struct envxmm *penv_xmm = &sv_xmm->sv_env;
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int i;
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/* FPU control/status */
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penv_xmm->en_cw = penv_87->en_cw;
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penv_xmm->en_sw = penv_87->en_sw;
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penv_xmm->en_tw = penv_87->en_tw;
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penv_xmm->en_fip = penv_87->en_fip;
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penv_xmm->en_fcs = penv_87->en_fcs;
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penv_xmm->en_opcode = penv_87->en_opcode;
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penv_xmm->en_foo = penv_87->en_foo;
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penv_xmm->en_fos = penv_87->en_fos;
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/* FPU registers */
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for (i = 0; i < 8; ++i)
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sv_xmm->sv_fp[i].fp_acc = sv_87->sv_ac[i];
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sv_xmm->sv_ex_sw = sv_87->sv_ex_sw;
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}
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#endif /* CPU_ENABLE_SSE */
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int
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fill_fpregs(p, fpregs)
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struct proc *p;
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struct fpreg *fpregs;
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{
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bcopy(&p->p_addr->u_pcb.pcb_savefpu, fpregs, sizeof *fpregs);
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#ifdef CPU_ENABLE_SSE
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if (cpu_fxsr) {
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fill_fpregs_xmm(&p->p_addr->u_pcb.pcb_save.sv_xmm,
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(struct save87 *)fpregs);
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return (0);
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}
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#endif /* CPU_ENABLE_SSE */
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bcopy(&p->p_addr->u_pcb.pcb_save.sv_87, fpregs, sizeof *fpregs);
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return (0);
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}
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@ -2239,7 +2305,14 @@ set_fpregs(p, fpregs)
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struct proc *p;
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struct fpreg *fpregs;
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{
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bcopy(fpregs, &p->p_addr->u_pcb.pcb_savefpu, sizeof *fpregs);
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#ifdef CPU_ENABLE_SSE
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if (cpu_fxsr) {
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set_fpregs_xmm((struct save87 *)fpregs,
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&p->p_addr->u_pcb.pcb_save.sv_xmm);
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return (0);
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}
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#endif /* CPU_ENABLE_SSE */
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bcopy(fpregs, &p->p_addr->u_pcb.pcb_save.sv_87, sizeof *fpregs);
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return (0);
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}
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@ -35,6 +35,7 @@
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* $FreeBSD$
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*/
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#include "opt_cpu.h"
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#include "opt_debug_npx.h"
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#include "opt_math_emulate.h"
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#include "opt_npx.h"
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@ -104,6 +105,8 @@
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#define fnstsw(addr) __asm __volatile("fnstsw %0" : "=m" (*(addr)))
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#define fp_divide_by_0() __asm("fldz; fld1; fdiv %st,%st(1); fnop")
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#define frstor(addr) __asm("frstor %0" : : "m" (*(addr)))
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#define fxrstor(addr) __asm("fxrstor %0" : : "m" (*(addr)))
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#define fxsave(addr) __asm __volatile("fxsave %0" : "=m" (*(addr)))
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#define start_emulating() __asm("smsw %%ax; orb %0,%%al; lmsw %%ax" \
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: : "n" (CR0_TS) : "ax")
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#define stop_emulating() __asm("clts")
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@ -118,11 +121,41 @@ void fnstcw __P((caddr_t addr));
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void fnstsw __P((caddr_t addr));
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void fp_divide_by_0 __P((void));
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void frstor __P((caddr_t addr));
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void fxsave __P((caddr_t addr));
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void fxrstor __P((caddr_t addr));
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void start_emulating __P((void));
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void stop_emulating __P((void));
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#endif /* __GNUC__ */
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#ifdef CPU_ENABLE_SSE
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#define GET_FPU_CW(proc) \
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(cpu_fxsr ? \
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(proc)->p_addr->u_pcb.pcb_save.sv_xmm.sv_env.en_cw : \
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(proc)->p_addr->u_pcb.pcb_save.sv_87.sv_env.en_cw)
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#define GET_FPU_SW(proc) \
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(cpu_fxsr ? \
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(proc)->p_addr->u_pcb.pcb_save.sv_xmm.sv_env.en_sw : \
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(proc)->p_addr->u_pcb.pcb_save.sv_87.sv_env.en_sw)
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#define MASK_FPU_SW(proc, mask) \
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(cpu_fxsr ? \
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(proc)->p_addr->u_pcb.pcb_save.sv_xmm.sv_env.en_sw & (mask) : \
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(proc)->p_addr->u_pcb.pcb_save.sv_87.sv_env.en_sw & (mask))
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#define GET_FPU_EXSW_PTR(pcb) \
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(cpu_fxsr ? \
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&(pcb)->pcb_save.sv_xmm.sv_ex_sw : \
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&(pcb)->pcb_save.sv_87.sv_ex_sw)
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#else /* CPU_ENABLE_SSE */
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#define GET_FPU_CW(proc) \
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(proc->p_addr->u_pcb.pcb_save.sv_87.sv_env.en_cw)
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#define GET_FPU_SW(proc) \
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(proc->p_addr->u_pcb.pcb_save.sv_87.sv_env.en_sw)
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#define MASK_FPU_SW(proc, mask) \
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((proc)->p_addr->u_pcb.pcb_save.sv_87.sv_env.en_sw & (mask))
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#define GET_FPU_EXSW_PTR(pcb) \
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(&(pcb)->pcb_save.sv_87.sv_ex_sw)
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#endif /* CPU_ENABLE_SSE */
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typedef u_char bool_t;
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static int npx_attach __P((device_t dev));
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@ -132,6 +165,8 @@ static void npx_intr __P((void *));
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#endif
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static int npx_probe __P((device_t dev));
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static int npx_probe1 __P((device_t dev));
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static void fpusave __P((union savefpu *, u_char));
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static void fpurstor __P((union savefpu *, u_char));
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#ifdef I586_CPU_XXX
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static long timezero __P((const char *funcname,
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void (*func)(void *buf, size_t len)));
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@ -582,7 +617,7 @@ void
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npxinit(control)
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u_short control;
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{
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struct save87 dummy;
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union savefpu dummy;
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critical_t savecrit;
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if (!npx_exists)
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@ -597,7 +632,7 @@ npxinit(control)
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stop_emulating();
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fldcw(&control);
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if (PCPU_GET(curpcb) != NULL)
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fnsave(&PCPU_GET(curpcb)->pcb_savefpu);
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fpusave(&PCPU_GET(curpcb)->pcb_save, curproc->p_oncpu);
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start_emulating();
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critical_exit(savecrit);
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}
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@ -613,7 +648,7 @@ npxexit(p)
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savecrit = critical_enter();
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if (p == PCPU_GET(npxproc))
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npxsave(&PCPU_GET(curpcb)->pcb_savefpu);
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npxsave(&PCPU_GET(curpcb)->pcb_save);
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critical_exit(savecrit);
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#ifdef NPX_DEBUG
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if (npx_exists) {
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@ -826,6 +861,7 @@ npxtrap()
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{
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critical_t savecrit;
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u_short control, status;
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u_long *exstat;
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if (!npx_exists) {
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printf("npxtrap: npxproc = %p, curproc = %p, npx_exists = %d\n",
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@ -840,16 +876,17 @@ npxtrap()
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* wherever they are.
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*/
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if (PCPU_GET(npxproc) != curproc) {
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control = curproc->p_addr->u_pcb.pcb_savefpu.sv_env.en_cw;
|
||||
status = curproc->p_addr->u_pcb.pcb_savefpu.sv_env.en_sw;
|
||||
control = GET_FPU_CW(curproc);
|
||||
status = GET_FPU_SW(curproc);
|
||||
} else {
|
||||
fnstcw(&control);
|
||||
fnstsw(&status);
|
||||
}
|
||||
|
||||
curproc->p_addr->u_pcb.pcb_savefpu.sv_ex_sw = status;
|
||||
exstat = GET_FPU_EXSW_PTR(&curproc->p_addr->u_pcb);
|
||||
*exstat = status;
|
||||
if (PCPU_GET(npxproc) != curproc)
|
||||
curproc->p_addr->u_pcb.pcb_savefpu.sv_env.en_sw &= ~0x80bf;
|
||||
MASK_FPU_SW(curproc, ~0x80bf);
|
||||
else
|
||||
fnclex();
|
||||
critical_exit(savecrit);
|
||||
@ -866,6 +903,7 @@ npxtrap()
|
||||
int
|
||||
npxdna()
|
||||
{
|
||||
u_long *exstat;
|
||||
critical_t s;
|
||||
|
||||
if (!npx_exists)
|
||||
@ -881,7 +919,9 @@ npxdna()
|
||||
* Record new context early in case frstor causes an IRQ13.
|
||||
*/
|
||||
PCPU_SET(npxproc, CURPROC);
|
||||
PCPU_GET(curpcb)->pcb_savefpu.sv_ex_sw = 0;
|
||||
|
||||
exstat = GET_FPU_EXSW_PTR(PCPU_GET(curpcb));
|
||||
*exstat = 0;
|
||||
/*
|
||||
* The following frstor may cause an IRQ13 when the state being
|
||||
* restored has a pending error. The error will appear to have been
|
||||
@ -894,7 +934,7 @@ npxdna()
|
||||
* fnsave are broken, so our treatment breaks fnclex if it is the
|
||||
* first FPU instruction after a context switch.
|
||||
*/
|
||||
frstor(&PCPU_GET(curpcb)->pcb_savefpu);
|
||||
fpurstor(&PCPU_GET(curpcb)->pcb_save, curproc->p_oncpu);
|
||||
critical_exit(s);
|
||||
|
||||
return (1);
|
||||
@ -925,15 +965,46 @@ npxdna()
|
||||
*/
|
||||
void
|
||||
npxsave(addr)
|
||||
struct save87 *addr;
|
||||
union savefpu *addr;
|
||||
{
|
||||
|
||||
stop_emulating();
|
||||
fnsave(addr);
|
||||
fpusave(addr, curproc->p_oncpu);
|
||||
|
||||
start_emulating();
|
||||
PCPU_SET(npxproc, NULL);
|
||||
}
|
||||
|
||||
static void
|
||||
fpusave(addr, oncpu)
|
||||
union savefpu *addr;
|
||||
u_char oncpu;
|
||||
{
|
||||
static struct savexmm svxmm[MAXCPU];
|
||||
|
||||
if (!cpu_fxsr)
|
||||
fnsave(addr);
|
||||
else {
|
||||
fxsave(&svxmm[oncpu]);
|
||||
bcopy(&svxmm[oncpu], addr, sizeof(struct savexmm));
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
fpurstor(addr, oncpu)
|
||||
union savefpu *addr;
|
||||
u_char oncpu;
|
||||
{
|
||||
static struct savexmm svxmm[MAXCPU];
|
||||
|
||||
if (!cpu_fxsr)
|
||||
frstor(addr);
|
||||
else {
|
||||
bcopy(addr, &svxmm[oncpu], sizeof (struct savexmm));
|
||||
fxrstor(&svxmm[oncpu]);
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef I586_CPU_XXX
|
||||
static long
|
||||
timezero(funcname, func)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user