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author | Paul Burton <paul.burton@imgtec.com> | 2017-08-13 04:49:39 +0200 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2017-08-30 00:57:27 +0200 |
commit | 68923cdc2eb34124d77bc27f7945d7ff16b236dd (patch) | |
tree | 967332aa37ceb6d533129bec00312b8735eadb9e /arch/mips/kernel/smp.c | |
parent | MIPS: Add CPU cluster number accessors (diff) | |
download | linux-68923cdc2eb34124d77bc27f7945d7ff16b236dd.tar.xz linux-68923cdc2eb34124d77bc27f7945d7ff16b236dd.zip |
MIPS: CM: Add cluster & block args to mips_cm_lock_other()
With CM >= 3.5 we have the notion of multiple clusters & can access
their CM, CPC & GIC registers via the apporpriate redirect/other
register blocks. In order to allow for this introduce cluster & block
arguments to mips_cm_lock_other() which configures the redirect/other
region to point at the appropriate cluster, core, VP & register block.
Since we now have 4 arguments to mips_cm_lock_other() & a common use is
likely to be to target the cluster, core & VP corresponding to a
particular Linux CPU number we also add a new mips_cm_lock_other_cpu()
helper function which handles that without the caller needing to
manually pull out the cluster, core & VP numbers.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17013/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/smp.c')
-rw-r--r-- | arch/mips/kernel/smp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index 4cc43892b959..6248a5a3ec9e 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -190,7 +190,7 @@ void mips_smp_send_ipi_mask(const struct cpumask *mask, unsigned int action) core = cpu_core(&cpu_data[cpu]); while (!cpumask_test_cpu(cpu, &cpu_coherent_mask)) { - mips_cm_lock_other(core, 0); + mips_cm_lock_other_cpu(cpu, CM_GCR_Cx_OTHER_BLOCK_LOCAL); mips_cpc_lock_other(core); write_cpc_co_cmd(CPC_Cx_CMD_PWRUP); mips_cpc_unlock_other(); |