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| author | Laurentiu Tudor <laurentiu.tudor@nxp.com> | 2020-01-23 11:19:25 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-04-24 07:59:01 +0200 |
| commit | f3c266a931df9ad84ea0a735d7bb6e8cf7c80cdc (patch) | |
| tree | 60f6a1932457d061e5ae9383cd93b184713a4219 /drivers | |
| parent | 62cd9aa3acae84461b94bb01b0bc06460fc7f085 (diff) | |
powerpc/fsl_booke: Avoid creating duplicate tlb1 entry
[ Upstream commit aa4113340ae6c2811e046f08c2bc21011d20a072 ]
In the current implementation, the call to loadcam_multi() is wrapped
between switch_to_as1() and restore_to_as0() calls so, when it tries
to create its own temporary AS=1 TLB1 entry, it ends up duplicating
the existing one created by switch_to_as1(). Add a check to skip
creating the temporary entry if already running in AS=1.
Fixes: d9e1831a4202 ("powerpc/85xx: Load all early TLB entries at once")
Cc: stable@vger.kernel.org # v4.4+
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Scott Wood <oss@buserror.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200123111914.2565-1-laurentiu.tudor@nxp.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
0 files changed, 0 insertions, 0 deletions