22 #define FPSCR_RCHG 0x00000000
46 	asm volatile ("sts.l	fpul, @-%0\n\t"  in save_fpu()
47 		      "sts.l	fpscr, @-%0\n\t"  in save_fpu()
50 		      "fmov.s	fr15, @-%0\n\t"  in save_fpu()
51 		      "fmov.s	fr14, @-%0\n\t"  in save_fpu()
52 		      "fmov.s	fr13, @-%0\n\t"  in save_fpu()
53 		      "fmov.s	fr12, @-%0\n\t"  in save_fpu()
54 		      "fmov.s	fr11, @-%0\n\t"  in save_fpu()
55 		      "fmov.s	fr10, @-%0\n\t"  in save_fpu()
56 		      "fmov.s	fr9, @-%0\n\t"  in save_fpu()
57 		      "fmov.s	fr8, @-%0\n\t"  in save_fpu()
58 		      "fmov.s	fr7, @-%0\n\t"  in save_fpu()
59 		      "fmov.s	fr6, @-%0\n\t"  in save_fpu()
60 		      "fmov.s	fr5, @-%0\n\t"  in save_fpu()
61 		      "fmov.s	fr4, @-%0\n\t"  in save_fpu()
62 		      "fmov.s	fr3, @-%0\n\t"  in save_fpu()
63 		      "fmov.s	fr2, @-%0\n\t"  in save_fpu()
64 		      "fmov.s	fr1, @-%0\n\t"  in save_fpu()
65 		      "fmov.s	fr0, @-%0\n\t"  in save_fpu()
67 		      "fmov.s	fr15, @-%0\n\t"  in save_fpu()
68 		      "fmov.s	fr14, @-%0\n\t"  in save_fpu()
69 		      "fmov.s	fr13, @-%0\n\t"  in save_fpu()
70 		      "fmov.s	fr12, @-%0\n\t"  in save_fpu()
71 		      "fmov.s	fr11, @-%0\n\t"  in save_fpu()
72 		      "fmov.s	fr10, @-%0\n\t"  in save_fpu()
73 		      "fmov.s	fr9, @-%0\n\t"  in save_fpu()
74 		      "fmov.s	fr8, @-%0\n\t"  in save_fpu()
75 		      "fmov.s	fr7, @-%0\n\t"  in save_fpu()
76 		      "fmov.s	fr6, @-%0\n\t"  in save_fpu()
77 		      "fmov.s	fr5, @-%0\n\t"  in save_fpu()
78 		      "fmov.s	fr4, @-%0\n\t"  in save_fpu()
79 		      "fmov.s	fr3, @-%0\n\t"  in save_fpu()
80 		      "fmov.s	fr2, @-%0\n\t"  in save_fpu()
81 		      "fmov.s	fr1, @-%0\n\t"  in save_fpu()
82 		      "fmov.s	fr0, @-%0\n\t"  in save_fpu()
84 		      :"0"((char *)(&tsk->thread.xstate->hardfpu.status)),  in save_fpu()
97 		      "fmov.s	@%0+, fr0\n\t"  in restore_fpu()
98 		      "fmov.s	@%0+, fr1\n\t"  in restore_fpu()
99 		      "fmov.s	@%0+, fr2\n\t"  in restore_fpu()
100 		      "fmov.s	@%0+, fr3\n\t"  in restore_fpu()
101 		      "fmov.s	@%0+, fr4\n\t"  in restore_fpu()
102 		      "fmov.s	@%0+, fr5\n\t"  in restore_fpu()
103 		      "fmov.s	@%0+, fr6\n\t"  in restore_fpu()
104 		      "fmov.s	@%0+, fr7\n\t"  in restore_fpu()
105 		      "fmov.s	@%0+, fr8\n\t"  in restore_fpu()
106 		      "fmov.s	@%0+, fr9\n\t"  in restore_fpu()
107 		      "fmov.s	@%0+, fr10\n\t"  in restore_fpu()
108 		      "fmov.s	@%0+, fr11\n\t"  in restore_fpu()
109 		      "fmov.s	@%0+, fr12\n\t"  in restore_fpu()
110 		      "fmov.s	@%0+, fr13\n\t"  in restore_fpu()
111 		      "fmov.s	@%0+, fr14\n\t"  in restore_fpu()
112 		      "fmov.s	@%0+, fr15\n\t"  in restore_fpu()
114 		      "fmov.s	@%0+, fr0\n\t"  in restore_fpu()
115 		      "fmov.s	@%0+, fr1\n\t"  in restore_fpu()
116 		      "fmov.s	@%0+, fr2\n\t"  in restore_fpu()
117 		      "fmov.s	@%0+, fr3\n\t"  in restore_fpu()
118 		      "fmov.s	@%0+, fr4\n\t"  in restore_fpu()
119 		      "fmov.s	@%0+, fr5\n\t"  in restore_fpu()
120 		      "fmov.s	@%0+, fr6\n\t"  in restore_fpu()
121 		      "fmov.s	@%0+, fr7\n\t"  in restore_fpu()
122 		      "fmov.s	@%0+, fr8\n\t"  in restore_fpu()
123 		      "fmov.s	@%0+, fr9\n\t"  in restore_fpu()
124 		      "fmov.s	@%0+, fr10\n\t"  in restore_fpu()
125 		      "fmov.s	@%0+, fr11\n\t"  in restore_fpu()
126 		      "fmov.s	@%0+, fr12\n\t"  in restore_fpu()
127 		      "fmov.s	@%0+, fr13\n\t"  in restore_fpu()
128 		      "fmov.s	@%0+, fr14\n\t"  in restore_fpu()
129 		      "fmov.s	@%0+, fr15\n\t"  in restore_fpu()
131 		      "lds.l	@%0+, fpscr\n\t"  in restore_fpu()
132 		      "lds.l	@%0+, fpul\n\t"  in restore_fpu()
134 		      :"0" (tsk->thread.xstate), "r" (FPSCR_RCHG)  in restore_fpu()
152 	if (x != 0 && (x & 0x7f800000) == 0) {  in denormal_to_double()
153 		du = (x & 0x80000000);  in denormal_to_double()
154 		while ((x & 0x00800000) == 0) {  in denormal_to_double()
158 		x &= 0x007fffff;  in denormal_to_double()
180 		(insn >> 12) & 0xf,  in ieee_fpe_handler()
181 		(insn >> 8) & 0xf,  in ieee_fpe_handler()
182 		(insn >> 4) & 0xf,  in ieee_fpe_handler()
183 		insn & 0xf  in ieee_fpe_handler()
186 	if (nib[0] == 0xb || (nib[0] == 0x4 && nib[2] == 0x0 && nib[3] == 0xb))  in ieee_fpe_handler()
189 	if (nib[0] == 0xa || nib[0] == 0xb) {  in ieee_fpe_handler()
191 		nextpc = regs->pc + 4 + ((short)((insn & 0xfff) << 4) >> 3);  in ieee_fpe_handler()
193 	} else if (nib[0] == 0x8 && nib[1] == 0xd) {  in ieee_fpe_handler()
196 			nextpc = regs->pc + 4 + ((char)(insn & 0xff) << 1);  in ieee_fpe_handler()
200 	} else if (nib[0] == 0x8 && nib[1] == 0xf) {  in ieee_fpe_handler()
205 			nextpc = regs->pc + 4 + ((char)(insn & 0xff) << 1);  in ieee_fpe_handler()
207 	} else if (nib[0] == 0x4 && nib[3] == 0xb &&  in ieee_fpe_handler()
208 		   (nib[2] == 0x0 || nib[2] == 0x2)) {  in ieee_fpe_handler()
212 	} else if (nib[0] == 0x0 && nib[3] == 0x3 &&  in ieee_fpe_handler()
213 		   (nib[2] == 0x0 || nib[2] == 0x2)) {  in ieee_fpe_handler()
217 	} else if (insn == 0x000b) {  in ieee_fpe_handler()
226 	if ((finsn & 0xf1ff) == 0xf0ad) {  in ieee_fpe_handler()
233 					   (finsn >> 8) & 0xf);  in ieee_fpe_handler()
235 			return 0;  in ieee_fpe_handler()
239 	} else if ((finsn & 0xf00f) == 0xf002) {  in ieee_fpe_handler()
246 		n = (finsn >> 8) & 0xf;  in ieee_fpe_handler()
247 		m = (finsn >> 4) & 0xf;  in ieee_fpe_handler()
254 		    && (prec && ((hx & 0x7fffffff) < 0x00100000  in ieee_fpe_handler()
255 				 || (hy & 0x7fffffff) < 0x00100000))) {  in ieee_fpe_handler()
265 			tsk->thread.xstate->hardfpu.fp_regs[n + 1] = llx & 0xffffffff;  in ieee_fpe_handler()
267 			   && (!prec && ((hx & 0x7fffffff) < 0x00800000  in ieee_fpe_handler()
268 					 || (hy & 0x7fffffff) < 0x00800000))) {  in ieee_fpe_handler()
273 			return 0;  in ieee_fpe_handler()
277 	} else if ((finsn & 0xf00e) == 0xf000) {  in ieee_fpe_handler()
284 		n = (finsn >> 8) & 0xf;  in ieee_fpe_handler()
285 		m = (finsn >> 4) & 0xf;  in ieee_fpe_handler()
292 		    && (prec && ((hx & 0x7fffffff) < 0x00100000  in ieee_fpe_handler()
293 				 || (hy & 0x7fffffff) < 0x00100000))) {  in ieee_fpe_handler()
301 			if ((finsn & 0xf00f) == 0xf000)  in ieee_fpe_handler()
306 			tsk->thread.xstate->hardfpu.fp_regs[n + 1] = llx & 0xffffffff;  in ieee_fpe_handler()
308 			   && (!prec && ((hx & 0x7fffffff) < 0x00800000  in ieee_fpe_handler()
309 					 || (hy & 0x7fffffff) < 0x00800000))) {  in ieee_fpe_handler()
311 			if ((finsn & 0xf00f) == 0xf000)  in ieee_fpe_handler()
317 			return 0;  in ieee_fpe_handler()
321 	} else if ((finsn & 0xf003) == 0xf003) {  in ieee_fpe_handler()
328 		n = (finsn >> 8) & 0xf;  in ieee_fpe_handler()
329 		m = (finsn >> 4) & 0xf;  in ieee_fpe_handler()
336 		    && (prec && ((hx & 0x7fffffff) < 0x00100000  in ieee_fpe_handler()
337 				 || (hy & 0x7fffffff) < 0x00100000))) {  in ieee_fpe_handler()
349 			tsk->thread.xstate->hardfpu.fp_regs[n + 1] = llx & 0xffffffff;  in ieee_fpe_handler()
351 			   && (!prec && ((hx & 0x7fffffff) < 0x00800000  in ieee_fpe_handler()
352 					 || (hy & 0x7fffffff) < 0x00800000))) {  in ieee_fpe_handler()
357 			return 0;  in ieee_fpe_handler()
361 	} else if ((finsn & 0xf0bd) == 0xf0bd) {  in ieee_fpe_handler()
367 		m = (finsn >> 8) & 0x7;  in ieee_fpe_handler()
371 			&& ((hx & 0x7fffffff) < 0x00100000)) {  in ieee_fpe_handler()
380 			return 0;  in ieee_fpe_handler()
386 	return 0;  in ieee_fpe_handler()
407 	fpu_exception_flags = 0;  in BUILD_TRAP_HANDLER()
419 		     (fpu_exception_flags >> 2)) == 0) {  in BUILD_TRAP_HANDLER()