diff options
Diffstat (limited to 'arch/sparc64')
-rw-r--r-- | arch/sparc64/kernel/ktlb.S | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/sparc64/kernel/ktlb.S b/arch/sparc64/kernel/ktlb.S index 964527d2ffa0..cef8defcd7a9 100644 --- a/arch/sparc64/kernel/ktlb.S +++ b/arch/sparc64/kernel/ktlb.S | |||
@@ -1,6 +1,6 @@ | |||
1 | /* arch/sparc64/kernel/ktlb.S: Kernel mapping TLB miss handling. | 1 | /* arch/sparc64/kernel/ktlb.S: Kernel mapping TLB miss handling. |
2 | * | 2 | * |
3 | * Copyright (C) 1995, 1997, 2005 David S. Miller <davem@davemloft.net> | 3 | * Copyright (C) 1995, 1997, 2005, 2008 David S. Miller <davem@davemloft.net> |
4 | * Copyright (C) 1996 Eddie C. Dost (ecd@brainaid.de) | 4 | * Copyright (C) 1996 Eddie C. Dost (ecd@brainaid.de) |
5 | * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) | 5 | * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) |
6 | * Copyright (C) 1996,98,99 Jakub Jelinek (jj@sunsite.mff.cuni.cz) | 6 | * Copyright (C) 1996,98,99 Jakub Jelinek (jj@sunsite.mff.cuni.cz) |
@@ -226,6 +226,7 @@ kvmap_dtlb_load: | |||
226 | ba,pt %xcc, sun4v_dtlb_load | 226 | ba,pt %xcc, sun4v_dtlb_load |
227 | mov %g5, %g3 | 227 | mov %g5, %g3 |
228 | 228 | ||
229 | #ifdef CONFIG_SPARSEMEM_VMEMMAP | ||
229 | kvmap_vmemmap: | 230 | kvmap_vmemmap: |
230 | sub %g4, %g5, %g5 | 231 | sub %g4, %g5, %g5 |
231 | srlx %g5, 22, %g5 | 232 | srlx %g5, 22, %g5 |
@@ -234,6 +235,7 @@ kvmap_vmemmap: | |||
234 | or %g1, %lo(vmemmap_table), %g1 | 235 | or %g1, %lo(vmemmap_table), %g1 |
235 | ba,pt %xcc, kvmap_dtlb_load | 236 | ba,pt %xcc, kvmap_dtlb_load |
236 | ldx [%g1 + %g5], %g5 | 237 | ldx [%g1 + %g5], %g5 |
238 | #endif | ||
237 | 239 | ||
238 | kvmap_dtlb_nonlinear: | 240 | kvmap_dtlb_nonlinear: |
239 | /* Catch kernel NULL pointer derefs. */ | 241 | /* Catch kernel NULL pointer derefs. */ |
@@ -242,12 +244,14 @@ kvmap_dtlb_nonlinear: | |||
242 | bleu,pn %xcc, kvmap_dtlb_longpath | 244 | bleu,pn %xcc, kvmap_dtlb_longpath |
243 | nop | 245 | nop |
244 | 246 | ||
247 | #ifdef CONFIG_SPARSEMEM_VMEMMAP | ||
245 | /* Do not use the TSB for vmemmap. */ | 248 | /* Do not use the TSB for vmemmap. */ |
246 | mov (VMEMMAP_BASE >> 24), %g5 | 249 | mov (VMEMMAP_BASE >> 24), %g5 |
247 | sllx %g5, 24, %g5 | 250 | sllx %g5, 24, %g5 |
248 | cmp %g4,%g5 | 251 | cmp %g4,%g5 |
249 | bgeu,pn %xcc, kvmap_vmemmap | 252 | bgeu,pn %xcc, kvmap_vmemmap |
250 | nop | 253 | nop |
254 | #endif | ||
251 | 255 | ||
252 | KERN_TSB_LOOKUP_TL1(%g4, %g6, %g5, %g1, %g2, %g3, kvmap_dtlb_load) | 256 | KERN_TSB_LOOKUP_TL1(%g4, %g6, %g5, %g1, %g2, %g3, kvmap_dtlb_load) |
253 | 257 | ||