diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2017-12-22 12:17:13 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-01-18 05:42:48 +0100 |
| commit | 1af19331a3a18296a918802dbe032a13328e264d (patch) | |
| tree | 5811f6ccdf8a7dff2e78d289b39eaf72e5ca73ff /arch/powerpc/kernel/watchdog.c | |
| parent | powerpc/pseries: lift RTAS limit for hash (diff) | |
| download | linux-1af19331a3a18296a918802dbe032a13328e264d.tar.xz linux-1af19331a3a18296a918802dbe032a13328e264d.zip | |
powerpc/64s: Relax PACA address limitations
Book3S PACA memory allocation is restricted by the RMA limit and also
must not take SLB faults when accessed in virtual mode. Currently a
fixed 256MB limit is used for this, which is imprecise and sub-optimal.
Update the paca allocation limits to use use the ppc64_rma_size for RMA
limit, and share the safe_stack_limit() that is currently used for stack
allocations that must not take virtual mode faults.
The safe_stack_limit() name is changed to ppc64_bolted_size() to match
ppc64_rma_size and some comments are updated. We also need to use
early_mmu_has_feature() because we are now calling this function prior
to the jump label patching that enables mmu_has_feature().
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Change mmu_has_feature() to early_mmu_has_feature()]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions