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| author | Aaron Durbin <adurbin@chromium.org> | 2014-11-05 11:19:21 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-04-10 11:57:19 +0200 |
| commit | 931a218d685610d85b570b72889b341270e2d00a (patch) | |
| tree | 446329b3db54620b5342f1eea1f398e28112743a /src/arch/arm64/cpu.c | |
| parent | 9fd7b1c1a9ab42b428af2599f497a328a04dbe92 (diff) | |
| download | coreboot-931a218d685610d85b570b72889b341270e2d00a.tar.xz | |
arm64: secmon: pass online CPUs to secmon
Instead of relying on CONFIG_MAX_CPUS to be the number of
CPUs running a platform pass the number of online cpus
from coreboot secmon. That allows for actually enabled
CPUs < CONFIG_MAX_CPUS.
BUG=chrome-os-partner:32112
BRANCH=None
TEST=Booted SMP kernel.
Change-Id: Iaf1591e77fcb5ccf5fe271b6c84ea8866e19c59d
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 3827af876c247fc42cd6be5dd67f8517457b36e7
Original-Change-Id: Ice10b8ab45bb1190a42678e67776846eec4eb79a
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/227529
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9397
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/arch/arm64/cpu.c')
| -rw-r--r-- | src/arch/arm64/cpu.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/arch/arm64/cpu.c b/src/arch/arm64/cpu.c index eb08735292..cd8dd3820a 100644 --- a/src/arch/arm64/cpu.c +++ b/src/arch/arm64/cpu.c @@ -32,6 +32,19 @@ struct cpu_info *cpu_info(void) return cpu_info_for_cpu(smp_processor_id()); } +size_t cpus_online(void) +{ + int i; + size_t num = 0; + + for (i = 0; i < ARRAY_SIZE(cpu_infos); i++) { + if (cpu_online(cpu_info_for_cpu(i))) + num++; + } + + return num; +} + static inline int action_queue_empty(struct cpu_action_queue *q) { return load_acquire_exclusive(&q->todo) == NULL; |