diff options
| author | Atish Patra <atish.patra@wdc.com> | 2020-02-11 17:32:37 -0800 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-02-24 18:07:55 +0530 |
| commit | b677a9b8d641f1c16a4f8f52e00019a9bc747893 (patch) | |
| tree | 5fa5b11867958b81cbeec0678819b60512fb9386 /include/sbi/sbi_hart.h | |
| parent | f64f4b92e411709227ee830bc1e9f8f87c72423e (diff) | |
lib: Implement hart hotplug
This patch adds support for hart hotplug in OpenSBI using a generic WFI
based approach. Hart hotplug can be achieved via SBI HSM extension which
allows supervisor mode software to start or stop any harts anytime.
Any platform wishes to implement platform specific hart hotplug must
implement both hart_start and hart_stop in addition to enable platform
feature SBI_PLATFORM_HAS_HART_HOTPLUG.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
Diffstat (limited to 'include/sbi/sbi_hart.h')
| -rw-r--r-- | include/sbi/sbi_hart.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h index 065cb0c..d88c7de 100644 --- a/include/sbi/sbi_hart.h +++ b/include/sbi/sbi_hart.h @@ -22,6 +22,8 @@ void sbi_hart_set_trap_info(struct sbi_scratch *scratch, void *data); void sbi_hart_delegation_dump(struct sbi_scratch *scratch); void sbi_hart_pmp_dump(struct sbi_scratch *scratch); +int sbi_hart_pmp_check_addr(struct sbi_scratch *scratch, unsigned long daddr, + unsigned long attr); void __attribute__((noreturn)) sbi_hart_hang(void); |