diff options
Diffstat (limited to 'include/asm-i386/bugs.h')
-rw-r--r-- | include/asm-i386/bugs.h | 23 |
1 files changed, 1 insertions, 22 deletions
diff --git a/include/asm-i386/bugs.h b/include/asm-i386/bugs.h index ea54540638d2..50233e0345fb 100644 --- a/include/asm-i386/bugs.h +++ b/include/asm-i386/bugs.h | |||
@@ -8,9 +8,6 @@ | |||
8 | * <rreilova@ececs.uc.edu> | 8 | * <rreilova@ececs.uc.edu> |
9 | * - Channing Corn (tests & fixes), | 9 | * - Channing Corn (tests & fixes), |
10 | * - Andrew D. Balsa (code cleanup). | 10 | * - Andrew D. Balsa (code cleanup). |
11 | * | ||
12 | * Pentium III FXSR, SSE support | ||
13 | * Gareth Hughes <gareth@valinux.com>, May 2000 | ||
14 | */ | 11 | */ |
15 | 12 | ||
16 | /* | 13 | /* |
@@ -76,25 +73,7 @@ static void __init check_fpu(void) | |||
76 | return; | 73 | return; |
77 | } | 74 | } |
78 | 75 | ||
79 | /* Enable FXSR and company _before_ testing for FP problems. */ | 76 | /* trap_init() enabled FXSR and company _before_ testing for FP problems here. */ |
80 | /* | ||
81 | * Verify that the FXSAVE/FXRSTOR data will be 16-byte aligned. | ||
82 | */ | ||
83 | if (offsetof(struct task_struct, thread.i387.fxsave) & 15) { | ||
84 | extern void __buggy_fxsr_alignment(void); | ||
85 | __buggy_fxsr_alignment(); | ||
86 | } | ||
87 | if (cpu_has_fxsr) { | ||
88 | printk(KERN_INFO "Enabling fast FPU save and restore... "); | ||
89 | set_in_cr4(X86_CR4_OSFXSR); | ||
90 | printk("done.\n"); | ||
91 | } | ||
92 | if (cpu_has_xmm) { | ||
93 | printk(KERN_INFO "Enabling unmasked SIMD FPU exception support... "); | ||
94 | set_in_cr4(X86_CR4_OSXMMEXCPT); | ||
95 | printk("done.\n"); | ||
96 | } | ||
97 | |||
98 | /* Test for the divl bug.. */ | 77 | /* Test for the divl bug.. */ |
99 | __asm__("fninit\n\t" | 78 | __asm__("fninit\n\t" |
100 | "fldl %1\n\t" | 79 | "fldl %1\n\t" |