[SPARC64]: Fix and re-enable dynamic TSB sizing.

[mirror_ubuntu-hirsute-kernel.git] / arch / sparc64 / mm / fault.c

diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c
index b97bd054aad36bd26465bdec40410cd4ce684715..63b6cc0cd5d58688926ab307f94a9809adb89329 100644 (file)
--- a/arch/sparc64/mm/fault.c
+++ b/arch/sparc64/mm/fault.c
@@ -29,6 +29,7 @@
 #include <asm/lsu.h>
 #include <asm/sections.h>
 #include <asm/kdebug.h>
+#include <asm/mmu_context.h>
 
 /*
  * To debug kernel to catch accesses to certain virtual/physical addresses.
@@ -258,7 +259,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
        struct vm_area_struct *vma;
        unsigned int insn = 0;
        int si_code, fault_code;
-       unsigned long address;
+       unsigned long address, mm_rss;
 
        fault_code = get_thread_fault_code();
 
@@ -407,6 +408,11 @@ good_area:
        }
 
        up_read(&mm->mmap_sem);
+
+       mm_rss = get_mm_rss(mm);
+       if (unlikely(mm_rss >= mm->context.tsb_rss_limit))
+               tsb_grow(mm, mm_rss);
+
        return;
 
        /*