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powerpc/book3e: Fix check for linear mapping in TLB miss handler
The previous code added wrong TLBs and causes machine check errors if a driver accessed passed the end of the linear mapping instead of a clean page fault. Signed-off-by: Ralph E. Bellofatto <ralphbel@us.ibm.com> Signed-off-by: Benjamin Krill <ben@codiert.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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1 changed files with 2 additions and 1 deletions
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@ -1091,7 +1091,8 @@ tlb_load_linear:
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ld r11,PACATOC(r13)
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ld r11,PACATOC(r13)
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ld r11,linear_map_top@got(r11)
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ld r11,linear_map_top@got(r11)
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ld r10,0(r11)
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ld r10,0(r11)
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cmpld cr0,r10,r16
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tovirt(10,10)
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cmpld cr0,r16,r10
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bge tlb_load_linear_fault
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bge tlb_load_linear_fault
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/* MAS1 need whole new setup. */
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/* MAS1 need whole new setup. */
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