diff options
author | Arnd Bergmann <arnd@arndb.de> | 2012-10-04 16:57:00 -0400 |
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committer | Arnd Bergmann <arnd@arndb.de> | 2012-10-04 16:57:51 -0400 |
commit | c37d6154c0b9163c27e53cc1d0be3867b4abd760 (patch) | |
tree | 7a24522c56d1cb284dff1d3c225bbdaba0901bb5 /arch/x86/include/asm/xor_64.h | |
parent | e7a570ff7dff9af6e54ff5e580a61ec7652137a0 (diff) | |
parent | 8a1ab3155c2ac7fbe5f2038d6e26efeb607a1498 (diff) |
Merge branch 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers into asm-generic
Patches from David Howells <dhowells@redhat.com>:
This is to complete part of the UAPI disintegration for which the
preparatory patches were pulled recently.
Note that there are some fixup patches which are at the base of the
branch aimed at you, plus all arches get the asm-generic branch merged in too.
* 'disintegrate-asm-generic' of git://git.infradead.org/users/dhowells/linux-headers:
UAPI: (Scripted) Disintegrate include/asm-generic
UAPI: Fix conditional header installation handling (notably kvm_para.h on m68k)
c6x: remove c6x signal.h
UAPI: Split compound conditionals containing __KERNEL__ in Arm64
UAPI: Fix the guards on various asm/unistd.h files
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/x86/include/asm/xor_64.h')
-rw-r--r-- | arch/x86/include/asm/xor_64.h | 63 |
1 files changed, 10 insertions, 53 deletions
diff --git a/arch/x86/include/asm/xor_64.h b/arch/x86/include/asm/xor_64.h index b9b2323e90fe..87ac522c4af5 100644 --- a/arch/x86/include/asm/xor_64.h +++ b/arch/x86/include/asm/xor_64.h | |||
@@ -34,41 +34,7 @@ | |||
34 | * no advantages to be gotten from x86-64 here anyways. | 34 | * no advantages to be gotten from x86-64 here anyways. |
35 | */ | 35 | */ |
36 | 36 | ||
37 | typedef struct { | 37 | #include <asm/i387.h> |
38 | unsigned long a, b; | ||
39 | } __attribute__((aligned(16))) xmm_store_t; | ||
40 | |||
41 | /* Doesn't use gcc to save the XMM registers, because there is no easy way to | ||
42 | tell it to do a clts before the register saving. */ | ||
43 | #define XMMS_SAVE \ | ||
44 | do { \ | ||
45 | preempt_disable(); \ | ||
46 | asm volatile( \ | ||
47 | "movq %%cr0,%0 ;\n\t" \ | ||
48 | "clts ;\n\t" \ | ||
49 | "movups %%xmm0,(%1) ;\n\t" \ | ||
50 | "movups %%xmm1,0x10(%1) ;\n\t" \ | ||
51 | "movups %%xmm2,0x20(%1) ;\n\t" \ | ||
52 | "movups %%xmm3,0x30(%1) ;\n\t" \ | ||
53 | : "=&r" (cr0) \ | ||
54 | : "r" (xmm_save) \ | ||
55 | : "memory"); \ | ||
56 | } while (0) | ||
57 | |||
58 | #define XMMS_RESTORE \ | ||
59 | do { \ | ||
60 | asm volatile( \ | ||
61 | "sfence ;\n\t" \ | ||
62 | "movups (%1),%%xmm0 ;\n\t" \ | ||
63 | "movups 0x10(%1),%%xmm1 ;\n\t" \ | ||
64 | "movups 0x20(%1),%%xmm2 ;\n\t" \ | ||
65 | "movups 0x30(%1),%%xmm3 ;\n\t" \ | ||
66 | "movq %0,%%cr0 ;\n\t" \ | ||
67 | : \ | ||
68 | : "r" (cr0), "r" (xmm_save) \ | ||
69 | : "memory"); \ | ||
70 | preempt_enable(); \ | ||
71 | } while (0) | ||
72 | 38 | ||
73 | #define OFFS(x) "16*("#x")" | 39 | #define OFFS(x) "16*("#x")" |
74 | #define PF_OFFS(x) "256+16*("#x")" | 40 | #define PF_OFFS(x) "256+16*("#x")" |
@@ -91,10 +57,8 @@ static void | |||
91 | xor_sse_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) | 57 | xor_sse_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) |
92 | { | 58 | { |
93 | unsigned int lines = bytes >> 8; | 59 | unsigned int lines = bytes >> 8; |
94 | unsigned long cr0; | ||
95 | xmm_store_t xmm_save[4]; | ||
96 | 60 | ||
97 | XMMS_SAVE; | 61 | kernel_fpu_begin(); |
98 | 62 | ||
99 | asm volatile( | 63 | asm volatile( |
100 | #undef BLOCK | 64 | #undef BLOCK |
@@ -135,7 +99,7 @@ xor_sse_2(unsigned long bytes, unsigned long *p1, unsigned long *p2) | |||
135 | : [inc] "r" (256UL) | 99 | : [inc] "r" (256UL) |
136 | : "memory"); | 100 | : "memory"); |
137 | 101 | ||
138 | XMMS_RESTORE; | 102 | kernel_fpu_end(); |
139 | } | 103 | } |
140 | 104 | ||
141 | static void | 105 | static void |
@@ -143,11 +107,8 @@ xor_sse_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, | |||
143 | unsigned long *p3) | 107 | unsigned long *p3) |
144 | { | 108 | { |
145 | unsigned int lines = bytes >> 8; | 109 | unsigned int lines = bytes >> 8; |
146 | xmm_store_t xmm_save[4]; | ||
147 | unsigned long cr0; | ||
148 | |||
149 | XMMS_SAVE; | ||
150 | 110 | ||
111 | kernel_fpu_begin(); | ||
151 | asm volatile( | 112 | asm volatile( |
152 | #undef BLOCK | 113 | #undef BLOCK |
153 | #define BLOCK(i) \ | 114 | #define BLOCK(i) \ |
@@ -194,7 +155,7 @@ xor_sse_3(unsigned long bytes, unsigned long *p1, unsigned long *p2, | |||
194 | [p1] "+r" (p1), [p2] "+r" (p2), [p3] "+r" (p3) | 155 | [p1] "+r" (p1), [p2] "+r" (p2), [p3] "+r" (p3) |
195 | : [inc] "r" (256UL) | 156 | : [inc] "r" (256UL) |
196 | : "memory"); | 157 | : "memory"); |
197 | XMMS_RESTORE; | 158 | kernel_fpu_end(); |
198 | } | 159 | } |
199 | 160 | ||
200 | static void | 161 | static void |
@@ -202,10 +163,8 @@ xor_sse_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, | |||
202 | unsigned long *p3, unsigned long *p4) | 163 | unsigned long *p3, unsigned long *p4) |
203 | { | 164 | { |
204 | unsigned int lines = bytes >> 8; | 165 | unsigned int lines = bytes >> 8; |
205 | xmm_store_t xmm_save[4]; | ||
206 | unsigned long cr0; | ||
207 | 166 | ||
208 | XMMS_SAVE; | 167 | kernel_fpu_begin(); |
209 | 168 | ||
210 | asm volatile( | 169 | asm volatile( |
211 | #undef BLOCK | 170 | #undef BLOCK |
@@ -261,7 +220,7 @@ xor_sse_4(unsigned long bytes, unsigned long *p1, unsigned long *p2, | |||
261 | : [inc] "r" (256UL) | 220 | : [inc] "r" (256UL) |
262 | : "memory" ); | 221 | : "memory" ); |
263 | 222 | ||
264 | XMMS_RESTORE; | 223 | kernel_fpu_end(); |
265 | } | 224 | } |
266 | 225 | ||
267 | static void | 226 | static void |
@@ -269,10 +228,8 @@ xor_sse_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, | |||
269 | unsigned long *p3, unsigned long *p4, unsigned long *p5) | 228 | unsigned long *p3, unsigned long *p4, unsigned long *p5) |
270 | { | 229 | { |
271 | unsigned int lines = bytes >> 8; | 230 | unsigned int lines = bytes >> 8; |
272 | xmm_store_t xmm_save[4]; | ||
273 | unsigned long cr0; | ||
274 | 231 | ||
275 | XMMS_SAVE; | 232 | kernel_fpu_begin(); |
276 | 233 | ||
277 | asm volatile( | 234 | asm volatile( |
278 | #undef BLOCK | 235 | #undef BLOCK |
@@ -336,7 +293,7 @@ xor_sse_5(unsigned long bytes, unsigned long *p1, unsigned long *p2, | |||
336 | : [inc] "r" (256UL) | 293 | : [inc] "r" (256UL) |
337 | : "memory"); | 294 | : "memory"); |
338 | 295 | ||
339 | XMMS_RESTORE; | 296 | kernel_fpu_end(); |
340 | } | 297 | } |
341 | 298 | ||
342 | static struct xor_block_template xor_block_sse = { | 299 | static struct xor_block_template xor_block_sse = { |
@@ -349,7 +306,7 @@ static struct xor_block_template xor_block_sse = { | |||
349 | 306 | ||
350 | 307 | ||
351 | /* Also try the AVX routines */ | 308 | /* Also try the AVX routines */ |
352 | #include "xor_avx.h" | 309 | #include <asm/xor_avx.h> |
353 | 310 | ||
354 | #undef XOR_TRY_TEMPLATES | 311 | #undef XOR_TRY_TEMPLATES |
355 | #define XOR_TRY_TEMPLATES \ | 312 | #define XOR_TRY_TEMPLATES \ |