MIPS: dump_tlb: Dump FrameMask register if exists

The FrameMask register is relevant to the TLB so it should be dumped by
dump_tlb_regs(), however it is only present in certain cores (r10000,
r12000, r14000, r16000). Add dumping of it, conditional upon
current_cpu_type().

Suggested-by: Joshua Kinard <kumba@gentoo.org>
Suggested-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Joshua Kinard <kumba@gentoo.org>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10724/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

diff --git a/arch/mips/lib/dump_tlb.c b/arch/mips/lib/dump_tlb.c
index 2ab83be..64f90f6 100644 (file)
--- a/arch/mips/lib/dump_tlb.c
+++ b/arch/mips/lib/dump_tlb.c
@@ -23,6 +23,14 @@ 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());
+       switch (current_cpu_type()) {
+       case CPU_R10000:
+       case CPU_R12000:
+       case CPU_R14000:
+       case CPU_R16000:
+               pr_info("FrameMask: %0x\n", read_c0_framemask());
+               break;
+       }
        if (cpu_has_small_pages || cpu_has_rixi || cpu_has_xpa)
                pr_info("PageGrain: %0x\n", read_c0_pagegrain());
        if (cpu_has_htw) {