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| author | Balbir Singh <bsingharora@gmail.com> | 2017-04-11 15:23:25 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-06-23 21:14:49 +1000 |
| commit | 0428491cba9277db42d66eb245d74255bd3dbfe7 (patch) | |
| tree | 4021f2a47bd5efea707220253377fac0b3a0e4b6 /arch/powerpc/mm/pgtable_64.c | |
| parent | d4cfb11387ee29ba4626546c676fd25c7abbbbb2 (diff) | |
| download | linux-0428491cba9277db42d66eb245d74255bd3dbfe7.tar.gz | |
powerpc/mm: Trace tlbie(l) instructions
Add a trace point for tlbie(l) (Translation Lookaside Buffer Invalidate
Entry (Local)) instructions.
The tlbie instruction has changed over the years, so not all versions
accept the same operands. Use the ISA v3 field operands because they are
the most verbose, we may change them in future.
Example output:
qemu-system-ppc-5371 [016] 1412.369519: tlbie:
tlbie with lpid 0, local 1, rb=67bd8900174c11c1, rs=0, ric=0 prs=0 r=0
Signed-off-by: Balbir Singh <bsingharora@gmail.com>
[mpe: Add some missing trace_tlbie()s, reword change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm/pgtable_64.c')
| -rw-r--r-- | arch/powerpc/mm/pgtable_64.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c index 8d2d6742a46515..1feb36e58a45c3 100644 --- a/arch/powerpc/mm/pgtable_64.c +++ b/arch/powerpc/mm/pgtable_64.c @@ -47,6 +47,7 @@ #include <asm/smp.h> #include <asm/machdep.h> #include <asm/tlb.h> +#include <asm/trace.h> #include <asm/processor.h> #include <asm/cputable.h> #include <asm/sections.h> @@ -477,12 +478,15 @@ void mmu_partition_table_set_entry(unsigned int lpid, unsigned long dw0, * use of this partition ID was, not the new use. */ asm volatile("ptesync" : : : "memory"); - if (old & PATB_HR) + if (old & PATB_HR) { asm volatile(PPC_TLBIE_5(%0,%1,2,0,1) : : "r" (TLBIEL_INVAL_SET_LPID), "r" (lpid)); - else + trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 1); + } else { asm volatile(PPC_TLBIE_5(%0,%1,2,0,0) : : "r" (TLBIEL_INVAL_SET_LPID), "r" (lpid)); + trace_tlbie(lpid, 0, TLBIEL_INVAL_SET_LPID, lpid, 2, 0, 0); + } asm volatile("eieio; tlbsync; ptesync" : : : "memory"); } EXPORT_SYMBOL_GPL(mmu_partition_table_set_entry); |