1
2
3
4#ifndef _ASM_X86_CPUFEATURE_H
5#define _ASM_X86_CPUFEATURE_H
6
7#include <asm/required-features.h>
8
9#define NCAPINTS 10
10
11
12
13
14
15
16
17
18#define X86_FEATURE_FPU (0*32+ 0)
19#define X86_FEATURE_VME (0*32+ 1)
20#define X86_FEATURE_DE (0*32+ 2)
21#define X86_FEATURE_PSE (0*32+ 3)
22#define X86_FEATURE_TSC (0*32+ 4)
23#define X86_FEATURE_MSR (0*32+ 5)
24#define X86_FEATURE_PAE (0*32+ 6)
25#define X86_FEATURE_MCE (0*32+ 7)
26#define X86_FEATURE_CX8 (0*32+ 8)
27#define X86_FEATURE_APIC (0*32+ 9)
28#define X86_FEATURE_SEP (0*32+11)
29#define X86_FEATURE_MTRR (0*32+12)
30#define X86_FEATURE_PGE (0*32+13)
31#define X86_FEATURE_MCA (0*32+14)
32#define X86_FEATURE_CMOV (0*32+15)
33
34#define X86_FEATURE_PAT (0*32+16)
35#define X86_FEATURE_PSE36 (0*32+17)
36#define X86_FEATURE_PN (0*32+18)
37#define X86_FEATURE_CLFLSH (0*32+19)
38#define X86_FEATURE_DS (0*32+21)
39#define X86_FEATURE_ACPI (0*32+22)
40#define X86_FEATURE_MMX (0*32+23)
41#define X86_FEATURE_FXSR (0*32+24)
42#define X86_FEATURE_XMM (0*32+25)
43#define X86_FEATURE_XMM2 (0*32+26)
44#define X86_FEATURE_SELFSNOOP (0*32+27)
45#define X86_FEATURE_HT (0*32+28)
46#define X86_FEATURE_ACC (0*32+29)
47#define X86_FEATURE_IA64 (0*32+30)
48#define X86_FEATURE_PBE (0*32+31)
49
50
51
52#define X86_FEATURE_SYSCALL (1*32+11)
53#define X86_FEATURE_MP (1*32+19)
54#define X86_FEATURE_NX (1*32+20)
55#define X86_FEATURE_MMXEXT (1*32+22)
56#define X86_FEATURE_FXSR_OPT (1*32+25)
57#define X86_FEATURE_GBPAGES (1*32+26)
58#define X86_FEATURE_RDTSCP (1*32+27)
59#define X86_FEATURE_LM (1*32+29)
60#define X86_FEATURE_3DNOWEXT (1*32+30)
61#define X86_FEATURE_3DNOW (1*32+31)
62
63
64#define X86_FEATURE_RECOVERY (2*32+ 0)
65#define X86_FEATURE_LONGRUN (2*32+ 1)
66#define X86_FEATURE_LRTI (2*32+ 3)
67
68
69
70#define X86_FEATURE_CXMMX (3*32+ 0)
71#define X86_FEATURE_K6_MTRR (3*32+ 1)
72#define X86_FEATURE_CYRIX_ARR (3*32+ 2)
73#define X86_FEATURE_CENTAUR_MCR (3*32+ 3)
74
75#define X86_FEATURE_K8 (3*32+ 4)
76#define X86_FEATURE_K7 (3*32+ 5)
77#define X86_FEATURE_P3 (3*32+ 6)
78#define X86_FEATURE_P4 (3*32+ 7)
79#define X86_FEATURE_CONSTANT_TSC (3*32+ 8)
80#define X86_FEATURE_UP (3*32+ 9)
81#define X86_FEATURE_FXSAVE_LEAK (3*32+10)
82#define X86_FEATURE_ARCH_PERFMON (3*32+11)
83#define X86_FEATURE_PEBS (3*32+12)
84#define X86_FEATURE_BTS (3*32+13)
85#define X86_FEATURE_SYSCALL32 (3*32+14)
86#define X86_FEATURE_SYSENTER32 (3*32+15)
87#define X86_FEATURE_REP_GOOD (3*32+16)
88#define X86_FEATURE_MFENCE_RDTSC (3*32+17)
89#define X86_FEATURE_LFENCE_RDTSC (3*32+18)
90#define X86_FEATURE_11AP (3*32+19)
91#define X86_FEATURE_NOPL (3*32+20)
92
93#define X86_FEATURE_XTOPOLOGY (3*32+22)
94#define X86_FEATURE_TSC_RELIABLE (3*32+23)
95#define X86_FEATURE_NONSTOP_TSC (3*32+24)
96#define X86_FEATURE_CLFLUSH_MONITOR (3*32+25)
97#define X86_FEATURE_EXTD_APICID (3*32+26)
98#define X86_FEATURE_AMD_DCM (3*32+27)
99#define X86_FEATURE_APERFMPERF (3*32+28)
100
101
102#define X86_FEATURE_XMM3 (4*32+ 0)
103#define X86_FEATURE_PCLMULQDQ (4*32+ 1)
104#define X86_FEATURE_DTES64 (4*32+ 2)
105#define X86_FEATURE_MWAIT (4*32+ 3)
106#define X86_FEATURE_DSCPL (4*32+ 4)
107#define X86_FEATURE_VMX (4*32+ 5)
108#define X86_FEATURE_SMX (4*32+ 6)
109#define X86_FEATURE_EST (4*32+ 7)
110#define X86_FEATURE_TM2 (4*32+ 8)
111#define X86_FEATURE_SSSE3 (4*32+ 9)
112#define X86_FEATURE_CID (4*32+10)
113#define X86_FEATURE_FMA (4*32+12)
114#define X86_FEATURE_CX16 (4*32+13)
115#define X86_FEATURE_XTPR (4*32+14)
116#define X86_FEATURE_PDCM (4*32+15)
117#define X86_FEATURE_DCA (4*32+18)
118#define X86_FEATURE_XMM4_1 (4*32+19)
119#define X86_FEATURE_XMM4_2 (4*32+20)
120#define X86_FEATURE_X2APIC (4*32+21)
121#define X86_FEATURE_MOVBE (4*32+22)
122#define X86_FEATURE_POPCNT (4*32+23)
123#define X86_FEATURE_AES (4*32+25)
124#define X86_FEATURE_XSAVE (4*32+26)
125#define X86_FEATURE_OSXSAVE (4*32+27)
126#define X86_FEATURE_AVX (4*32+28)
127#define X86_FEATURE_F16C (4*32+29)
128#define X86_FEATURE_RDRAND (4*32+30)
129#define X86_FEATURE_HYPERVISOR (4*32+31)
130
131
132#define X86_FEATURE_XSTORE (5*32+ 2)
133#define X86_FEATURE_XSTORE_EN (5*32+ 3)
134#define X86_FEATURE_XCRYPT (5*32+ 6)
135#define X86_FEATURE_XCRYPT_EN (5*32+ 7)
136#define X86_FEATURE_ACE2 (5*32+ 8)
137#define X86_FEATURE_ACE2_EN (5*32+ 9)
138#define X86_FEATURE_PHE (5*32+10)
139#define X86_FEATURE_PHE_EN (5*32+11)
140#define X86_FEATURE_PMM (5*32+12)
141#define X86_FEATURE_PMM_EN (5*32+13)
142
143
144#define X86_FEATURE_LAHF_LM (6*32+ 0)
145#define X86_FEATURE_CMP_LEGACY (6*32+ 1)
146#define X86_FEATURE_SVM (6*32+ 2)
147#define X86_FEATURE_EXTAPIC (6*32+ 3)
148#define X86_FEATURE_CR8_LEGACY (6*32+ 4)
149#define X86_FEATURE_ABM (6*32+ 5)
150#define X86_FEATURE_SSE4A (6*32+ 6)
151#define X86_FEATURE_MISALIGNSSE (6*32+ 7)
152#define X86_FEATURE_3DNOWPREFETCH (6*32+ 8)
153#define X86_FEATURE_OSVW (6*32+ 9)
154#define X86_FEATURE_IBS (6*32+10)
155#define X86_FEATURE_XOP (6*32+11)
156#define X86_FEATURE_SKINIT (6*32+12)
157#define X86_FEATURE_WDT (6*32+13)
158#define X86_FEATURE_LWP (6*32+15)
159#define X86_FEATURE_FMA4 (6*32+16)
160#define X86_FEATURE_NODEID_MSR (6*32+19)
161#define X86_FEATURE_TBM (6*32+21)
162#define X86_FEATURE_TOPOEXT (6*32+22)
163#define X86_FEATURE_PERFCTR_CORE (6*32+23)
164
165
166
167
168
169#define X86_FEATURE_IDA (7*32+ 0)
170#define X86_FEATURE_ARAT (7*32+ 1)
171#define X86_FEATURE_CPB (7*32+ 2)
172#define X86_FEATURE_EPB (7*32+ 3)
173#define X86_FEATURE_XSAVEOPT (7*32+ 4)
174#define X86_FEATURE_PLN (7*32+ 5)
175#define X86_FEATURE_PTS (7*32+ 6)
176#define X86_FEATURE_DTS (7*32+ 7)
177
178
179#define X86_FEATURE_TPR_SHADOW (8*32+ 0)
180#define X86_FEATURE_VNMI (8*32+ 1)
181#define X86_FEATURE_FLEXPRIORITY (8*32+ 2)
182#define X86_FEATURE_EPT (8*32+ 3)
183#define X86_FEATURE_VPID (8*32+ 4)
184#define X86_FEATURE_NPT (8*32+ 5)
185#define X86_FEATURE_LBRV (8*32+ 6)
186#define X86_FEATURE_SVML (8*32+ 7)
187#define X86_FEATURE_NRIPS (8*32+ 8)
188#define X86_FEATURE_TSCRATEMSR (8*32+ 9)
189#define X86_FEATURE_VMCBCLEAN (8*32+10)
190#define X86_FEATURE_FLUSHBYASID (8*32+11)
191#define X86_FEATURE_DECODEASSISTS (8*32+12)
192#define X86_FEATURE_PAUSEFILTER (8*32+13)
193#define X86_FEATURE_PFTHRESHOLD (8*32+14)
194
195
196
197#define X86_FEATURE_FSGSBASE (9*32+ 0)
198#define X86_FEATURE_SMEP (9*32+ 7)
199#define X86_FEATURE_ERMS (9*32+ 9)
200
201#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
202
203#include <asm/asm.h>
204#include <linux/bitops.h>
205
206extern const char * const x86_cap_flags[NCAPINTS*32];
207extern const char * const x86_power_flags[32];
208
209#define test_cpu_cap(c, bit) \
210 test_bit(bit, (unsigned long *)((c)->x86_capability))
211
212#define REQUIRED_MASK_BIT_SET(bit) \
213 ( (((bit)>>5)==0 && (1UL<<((bit)&31) & REQUIRED_MASK0)) || \
214 (((bit)>>5)==1 && (1UL<<((bit)&31) & REQUIRED_MASK1)) || \
215 (((bit)>>5)==2 && (1UL<<((bit)&31) & REQUIRED_MASK2)) || \
216 (((bit)>>5)==3 && (1UL<<((bit)&31) & REQUIRED_MASK3)) || \
217 (((bit)>>5)==4 && (1UL<<((bit)&31) & REQUIRED_MASK4)) || \
218 (((bit)>>5)==5 && (1UL<<((bit)&31) & REQUIRED_MASK5)) || \
219 (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6)) || \
220 (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7)) || \
221 (((bit)>>5)==8 && (1UL<<((bit)&31) & REQUIRED_MASK8)) || \
222 (((bit)>>5)==9 && (1UL<<((bit)&31) & REQUIRED_MASK9)) )
223
224#define cpu_has(c, bit) \
225 (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \
226 test_cpu_cap(c, bit))
227
228#define this_cpu_has(bit) \
229 (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \
230 x86_this_cpu_test_bit(bit, (unsigned long *)&cpu_info.x86_capability))
231
232#define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit)
233
234#define set_cpu_cap(c, bit) set_bit(bit, (unsigned long *)((c)->x86_capability))
235#define clear_cpu_cap(c, bit) clear_bit(bit, (unsigned long *)((c)->x86_capability))
236#define setup_clear_cpu_cap(bit) do { \
237 clear_cpu_cap(&boot_cpu_data, bit); \
238 set_bit(bit, (unsigned long *)cpu_caps_cleared); \
239} while (0)
240#define setup_force_cpu_cap(bit) do { \
241 set_cpu_cap(&boot_cpu_data, bit); \
242 set_bit(bit, (unsigned long *)cpu_caps_set); \
243} while (0)
244
245#define cpu_has_fpu boot_cpu_has(X86_FEATURE_FPU)
246#define cpu_has_vme boot_cpu_has(X86_FEATURE_VME)
247#define cpu_has_de boot_cpu_has(X86_FEATURE_DE)
248#define cpu_has_pse boot_cpu_has(X86_FEATURE_PSE)
249#define cpu_has_tsc boot_cpu_has(X86_FEATURE_TSC)
250#define cpu_has_pae boot_cpu_has(X86_FEATURE_PAE)
251#define cpu_has_pge boot_cpu_has(X86_FEATURE_PGE)
252#define cpu_has_apic boot_cpu_has(X86_FEATURE_APIC)
253#define cpu_has_sep boot_cpu_has(X86_FEATURE_SEP)
254#define cpu_has_mtrr boot_cpu_has(X86_FEATURE_MTRR)
255#define cpu_has_mmx boot_cpu_has(X86_FEATURE_MMX)
256#define cpu_has_fxsr boot_cpu_has(X86_FEATURE_FXSR)
257#define cpu_has_xmm boot_cpu_has(X86_FEATURE_XMM)
258#define cpu_has_xmm2 boot_cpu_has(X86_FEATURE_XMM2)
259#define cpu_has_xmm3 boot_cpu_has(X86_FEATURE_XMM3)
260#define cpu_has_aes boot_cpu_has(X86_FEATURE_AES)
261#define cpu_has_ht boot_cpu_has(X86_FEATURE_HT)
262#define cpu_has_mp boot_cpu_has(X86_FEATURE_MP)
263#define cpu_has_nx boot_cpu_has(X86_FEATURE_NX)
264#define cpu_has_k6_mtrr boot_cpu_has(X86_FEATURE_K6_MTRR)
265#define cpu_has_cyrix_arr boot_cpu_has(X86_FEATURE_CYRIX_ARR)
266#define cpu_has_centaur_mcr boot_cpu_has(X86_FEATURE_CENTAUR_MCR)
267#define cpu_has_xstore boot_cpu_has(X86_FEATURE_XSTORE)
268#define cpu_has_xstore_enabled boot_cpu_has(X86_FEATURE_XSTORE_EN)
269#define cpu_has_xcrypt boot_cpu_has(X86_FEATURE_XCRYPT)
270#define cpu_has_xcrypt_enabled boot_cpu_has(X86_FEATURE_XCRYPT_EN)
271#define cpu_has_ace2 boot_cpu_has(X86_FEATURE_ACE2)
272#define cpu_has_ace2_enabled boot_cpu_has(X86_FEATURE_ACE2_EN)
273#define cpu_has_phe boot_cpu_has(X86_FEATURE_PHE)
274#define cpu_has_phe_enabled boot_cpu_has(X86_FEATURE_PHE_EN)
275#define cpu_has_pmm boot_cpu_has(X86_FEATURE_PMM)
276#define cpu_has_pmm_enabled boot_cpu_has(X86_FEATURE_PMM_EN)
277#define cpu_has_ds boot_cpu_has(X86_FEATURE_DS)
278#define cpu_has_pebs boot_cpu_has(X86_FEATURE_PEBS)
279#define cpu_has_clflush boot_cpu_has(X86_FEATURE_CLFLSH)
280#define cpu_has_bts boot_cpu_has(X86_FEATURE_BTS)
281#define cpu_has_gbpages boot_cpu_has(X86_FEATURE_GBPAGES)
282#define cpu_has_arch_perfmon boot_cpu_has(X86_FEATURE_ARCH_PERFMON)
283#define cpu_has_pat boot_cpu_has(X86_FEATURE_PAT)
284#define cpu_has_xmm4_1 boot_cpu_has(X86_FEATURE_XMM4_1)
285#define cpu_has_xmm4_2 boot_cpu_has(X86_FEATURE_XMM4_2)
286#define cpu_has_x2apic boot_cpu_has(X86_FEATURE_X2APIC)
287#define cpu_has_xsave boot_cpu_has(X86_FEATURE_XSAVE)
288#define cpu_has_hypervisor boot_cpu_has(X86_FEATURE_HYPERVISOR)
289#define cpu_has_pclmulqdq boot_cpu_has(X86_FEATURE_PCLMULQDQ)
290#define cpu_has_perfctr_core boot_cpu_has(X86_FEATURE_PERFCTR_CORE)
291
292#if defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_64)
293# define cpu_has_invlpg 1
294#else
295# define cpu_has_invlpg (boot_cpu_data.x86 > 3)
296#endif
297
298#ifdef CONFIG_X86_64
299
300#undef cpu_has_vme
301#define cpu_has_vme 0
302
303#undef cpu_has_pae
304#define cpu_has_pae ___BUG___
305
306#undef cpu_has_mp
307#define cpu_has_mp 1
308
309#undef cpu_has_k6_mtrr
310#define cpu_has_k6_mtrr 0
311
312#undef cpu_has_cyrix_arr
313#define cpu_has_cyrix_arr 0
314
315#undef cpu_has_centaur_mcr
316#define cpu_has_centaur_mcr 0
317
318#endif
319
320#if __GNUC__ >= 4
321
322
323
324
325
326
327static __always_inline __pure bool __static_cpu_has(u16 bit)
328{
329#if __GNUC__ > 4 || __GNUC_MINOR__ >= 5
330 asm goto("1: jmp %l[t_no]\n"
331 "2:\n"
332 ".section .altinstructions,\"a\"\n"
333 _ASM_ALIGN "\n"
334 _ASM_PTR "1b\n"
335 _ASM_PTR "0\n"
336 " .word %P0\n"
337 " .byte 2b - 1b\n"
338 " .byte 0\n"
339 ".previous\n"
340
341 : : "i" (bit) : : t_no);
342 return true;
343 t_no:
344 return false;
345#else
346 u8 flag;
347
348 asm volatile("1: movb $0,%0\n"
349 "2:\n"
350 ".section .altinstructions,\"a\"\n"
351 _ASM_ALIGN "\n"
352 _ASM_PTR "1b\n"
353 _ASM_PTR "3f\n"
354 " .word %P1\n"
355 " .byte 2b - 1b\n"
356 " .byte 4f - 3f\n"
357 ".previous\n"
358 ".section .discard,\"aw\",@progbits\n"
359 " .byte 0xff + (4f-3f) - (2b-1b)\n"
360 ".previous\n"
361 ".section .altinstr_replacement,\"ax\"\n"
362 "3: movb $1,%0\n"
363 "4:\n"
364 ".previous\n"
365 : "=qm" (flag) : "i" (bit));
366 return flag;
367#endif
368}
369
370#define static_cpu_has(bit) \
371( \
372 __builtin_constant_p(boot_cpu_has(bit)) ? \
373 boot_cpu_has(bit) : \
374 __builtin_constant_p(bit) ? \
375 __static_cpu_has(bit) : \
376 boot_cpu_has(bit) \
377)
378#else
379
380
381
382#define static_cpu_has(bit) boot_cpu_has(bit)
383#endif
384
385#endif
386
387#endif
388