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lib: sbi: Implement SBI PMU extension

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RISC-V SBI specfication 0.3 defines a PMU extension that allows supervisor
mode to start/stop/configure pmu related events. This patch implements
all of the functionality defined in the specification.

Reviewed-by: Anup Patel <anup.patel@wdc.com>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Atish Patra
2021-07-10 09:18:13 -07:00
committed by Anup Patel
parent ae72ec0915
commit 37f9b0f2f2
5 changed files with 99 additions and 1 deletions
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1
include/sbi/sbi_ecall.h
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@@ -39,6 +39,7 @@ extern struct sbi_ecall_extension ecall_ipi;
extern struct sbi_ecall_extension ecall_vendor;
extern struct sbi_ecall_extension ecall_hsm;
extern struct sbi_ecall_extension ecall_srst;
extern struct sbi_ecall_extension ecall_pmu;
u16 sbi_ecall_version_major(void);