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| author | Andi Kleen <ak@suse.de> | 2006-09-26 04:52:40 -0400 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-09-26 04:52:40 -0400 |
| commit | c1a9d41f4f103bfef2ed0bea1e95b3190e39e448 (patch) | |
| tree | 1b11b8fa27c5b4308a5014453b944ec15c22b1a8 /include | |
| parent | 383d079bfdfcfccd6a720405a510fe325b3e6576 (diff) | |
[PATCH] Reindent macros in pda.h
Reindent the macros in x86-64 pda.h, making them much more readable.
Follows Jeremy's i386 version of this.
No functional changes
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86_64/pda.h | 85 |
1 files changed, 53 insertions, 32 deletions
diff --git a/include/asm-x86_64/pda.h b/include/asm-x86_64/pda.h index 5dadb201f769..9e3aaf74475d 100644 --- a/include/asm-x86_64/pda.h +++ b/include/asm-x86_64/pda.h | |||
| @@ -41,46 +41,67 @@ extern struct x8664_pda boot_cpu_pda[]; | |||
| 41 | */ | 41 | */ |
| 42 | extern void __bad_pda_field(void); | 42 | extern void __bad_pda_field(void); |
| 43 | 43 | ||
| 44 | /* proxy_pda doesn't actually exist, but tell gcc it is accessed | 44 | /* |
| 45 | for all PDA accesses so it gets read/write dependencies right. */ | 45 | * proxy_pda doesn't actually exist, but tell gcc it is accessed for |
| 46 | * all PDA accesses so it gets read/write dependencies right. | ||
| 47 | */ | ||
| 46 | extern struct x8664_pda _proxy_pda; | 48 | extern struct x8664_pda _proxy_pda; |
| 47 | 49 | ||
| 48 | #define pda_offset(field) offsetof(struct x8664_pda, field) | 50 | #define pda_offset(field) offsetof(struct x8664_pda, field) |
| 49 | 51 | ||
| 50 | #define pda_to_op(op,field,val) do { \ | 52 | #define pda_to_op(op,field,val) do { \ |
| 51 | typedef typeof(_proxy_pda.field) T__; \ | 53 | typedef typeof(_proxy_pda.field) T__; \ |
| 52 | if (0) { T__ tmp__; tmp__ = (val); } \ | 54 | if (0) { T__ tmp__; tmp__ = (val); } /* type checking */ \ |
| 53 | switch (sizeof(_proxy_pda.field)) { \ | 55 | switch (sizeof(_proxy_pda.field)) { \ |
| 54 | case 2: \ | 56 | case 2: \ |
| 55 | asm(op "w %1,%%gs:%c2" : "+m" (_proxy_pda.field) : \ | 57 | asm(op "w %1,%%gs:%c2" : \ |
| 56 | "ri" ((T__)val),"i"(pda_offset(field))); break; \ | 58 | "+m" (_proxy_pda.field) : \ |
| 57 | case 4: \ | 59 | "ri" ((T__)val), \ |
| 58 | asm(op "l %1,%%gs:%c2" : "+m" (_proxy_pda.field) : \ | 60 | "i"(pda_offset(field))); \ |
| 59 | "ri" ((T__)val),"i"(pda_offset(field))); break; \ | 61 | break; \ |
| 60 | case 8: \ | 62 | case 4: \ |
| 61 | asm(op "q %1,%%gs:%c2": "+m" (_proxy_pda.field) : \ | 63 | asm(op "l %1,%%gs:%c2" : \ |
| 62 | "ri" ((T__)val),"i"(pda_offset(field))); break; \ | 64 | "+m" (_proxy_pda.field) : \ |
| 63 | default: __bad_pda_field(); \ | 65 | "ri" ((T__)val), \ |
| 64 | } \ | 66 | "i" (pda_offset(field))); \ |
| 67 | break; \ | ||
| 68 | case 8: \ | ||
| 69 | asm(op "q %1,%%gs:%c2": \ | ||
| 70 | "+m" (_proxy_pda.field) : \ | ||
| 71 | "ri" ((T__)val), \ | ||
| 72 | "i"(pda_offset(field))); \ | ||
| 73 | break; \ | ||
| 74 | default: \ | ||
| 75 | __bad_pda_field(); \ | ||
| 76 | } \ | ||
| 65 | } while (0) | 77 | } while (0) |
| 66 | 78 | ||
| 67 | #define pda_from_op(op,field) ({ \ | 79 | #define pda_from_op(op,field) ({ \ |
| 68 | typeof(_proxy_pda.field) ret__; \ | 80 | typeof(_proxy_pda.field) ret__; \ |
| 69 | switch (sizeof(_proxy_pda.field)) { \ | 81 | switch (sizeof(_proxy_pda.field)) { \ |
| 70 | case 2: \ | 82 | case 2: \ |
| 71 | asm(op "w %%gs:%c1,%0":"=r" (ret__):\ | 83 | asm(op "w %%gs:%c1,%0" : \ |
| 72 | "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ | 84 | "=r" (ret__) : \ |
| 73 | case 4: \ | 85 | "i" (pda_offset(field)), \ |
| 74 | asm(op "l %%gs:%c1,%0":"=r" (ret__):\ | 86 | "m" (_proxy_pda.field)); \ |
| 75 | "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ | 87 | break; \ |
| 76 | case 8: \ | 88 | case 4: \ |
| 77 | asm(op "q %%gs:%c1,%0":"=r" (ret__):\ | 89 | asm(op "l %%gs:%c1,%0": \ |
| 78 | "i" (pda_offset(field)), "m" (_proxy_pda.field)); break;\ | 90 | "=r" (ret__): \ |
| 79 | default: __bad_pda_field(); \ | 91 | "i" (pda_offset(field)), \ |
| 80 | } \ | 92 | "m" (_proxy_pda.field)); \ |
| 93 | break; \ | ||
| 94 | case 8: \ | ||
| 95 | asm(op "q %%gs:%c1,%0": \ | ||
| 96 | "=r" (ret__) : \ | ||
| 97 | "i" (pda_offset(field)), \ | ||
| 98 | "m" (_proxy_pda.field)); \ | ||
| 99 | break; \ | ||
| 100 | default: \ | ||
| 101 | __bad_pda_field(); \ | ||
| 102 | } \ | ||
| 81 | ret__; }) | 103 | ret__; }) |
| 82 | 104 | ||
| 83 | |||
| 84 | #define read_pda(field) pda_from_op("mov",field) | 105 | #define read_pda(field) pda_from_op("mov",field) |
| 85 | #define write_pda(field,val) pda_to_op("mov",field,val) | 106 | #define write_pda(field,val) pda_to_op("mov",field,val) |
| 86 | #define add_pda(field,val) pda_to_op("add",field,val) | 107 | #define add_pda(field,val) pda_to_op("add",field,val) |