diff options
| author | James Hogan <[email protected]> | 2015-07-15 15:17:45 +0000 |
|---|---|---|
| committer | Ralf Baechle <[email protected]> | 2015-09-03 10:07:48 +0000 |
| commit | 5d3c3c7d296d9622560558de96875cf694d96f58 (patch) | |
| tree | 57c83572647179b396e7794d924120115b153dd1 /arch/mips/lib/dump_tlb.c | |
| parent | MIPS: Probe for small (1KiB) page support (diff) | |
| download | kernel-5d3c3c7d296d9622560558de96875cf694d96f58.tar.gz kernel-5d3c3c7d296d9622560558de96875cf694d96f58.zip | |
MIPS: dump_tlb: Only dump PageGrain if interesting
The PageGrain register may not exist if certain architectural features
aren't present, therefore only print out its value when dumping the TLB
registers if it is expected to contain fields relevant to the TLB.
Fixes: d1e9a4f54735 ("MIPS: Add SysRq operation to dump TLBs on all CPUs")
Reported-by: Joshua Kinard <[email protected]>
Reported-by: Maciej W. Rozycki <[email protected]>
Signed-off-by: James Hogan <[email protected]>
Cc: Joshua Kinard <[email protected]>
Cc: Maciej W. Rozycki <[email protected]>
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/10723/
Signed-off-by: Ralf Baechle <[email protected]>
Diffstat (limited to 'arch/mips/lib/dump_tlb.c')
| -rw-r--r-- | arch/mips/lib/dump_tlb.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/lib/dump_tlb.c b/arch/mips/lib/dump_tlb.c index 519ededbf9a4..2ab83be14ffa 100644 --- a/arch/mips/lib/dump_tlb.c +++ b/arch/mips/lib/dump_tlb.c @@ -23,7 +23,8 @@ void dump_tlb_regs(void) pr_info("EntryLo0 : %0*lx\n", field, read_c0_entrylo0()); pr_info("EntryLo1 : %0*lx\n", field, read_c0_entrylo1()); pr_info("Wired : %0x\n", read_c0_wired()); - pr_info("PageGrain: %0x\n", read_c0_pagegrain()); + if (cpu_has_small_pages || cpu_has_rixi || cpu_has_xpa) + pr_info("PageGrain: %0x\n", read_c0_pagegrain()); if (cpu_has_htw) { pr_info("PWField : %0*lx\n", field, read_c0_pwfield()); pr_info("PWSize : %0*lx\n", field, read_c0_pwsize()); |