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| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2014-04-14 09:47:00 -0400 |
|---|---|---|
| committer | Jason Cooper <jason@lakedaemon.net> | 2014-04-24 01:00:36 -0400 |
| commit | 501f928e009760f4987d4630265bb9fff28a6ecc (patch) | |
| tree | eb45702a4085dde9f1eefb0737948c54f15b3a0e /arch/arm/mach-mvebu/coherency.h | |
| parent | 924d38f404936495b59ef7fa3ff232d978d64b18 (diff) | |
ARM: mvebu: add a coherency_available() call
This commit extends the coherency fabric code to provide a
coherency_available()function that the SoC code can call to be told
whether coherency support is available or not. On Armada 370/XP,
coherency support is available as soon as the relevant DT node is
present. On some upcoming SoCs, the DT node needs to be present *and*
the system running with CONFIG_SMP enabled.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Link: https://lkml.kernel.org/r/1397483228-25625-3-git-send-email-thomas.petazzoni@free-electrons.com
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'arch/arm/mach-mvebu/coherency.h')
| -rw-r--r-- | arch/arm/mach-mvebu/coherency.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/coherency.h b/arch/arm/mach-mvebu/coherency.h index 760226c41353..02f7ec34ced2 100644 --- a/arch/arm/mach-mvebu/coherency.h +++ b/arch/arm/mach-mvebu/coherency.h | |||
| @@ -18,5 +18,6 @@ extern unsigned long coherency_phys_base; | |||
| 18 | 18 | ||
| 19 | int set_cpu_coherent(unsigned int cpu_id, int smp_group_id); | 19 | int set_cpu_coherent(unsigned int cpu_id, int smp_group_id); |
| 20 | int coherency_init(void); | 20 | int coherency_init(void); |
| 21 | int coherency_available(void); | ||
| 21 | 22 | ||
| 22 | #endif /* __MACH_370_XP_COHERENCY_H */ | 23 | #endif /* __MACH_370_XP_COHERENCY_H */ |