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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 authored and Anup Patel committed 2021-07-11 10:38:02 +05:30
1 parent ae72ec0915
commit 37f9b0f2f2
5 files changed
+99 -1
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lib/sbi/sbi_ecall.c
+3
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@@ -162,6 +162,9 @@ int sbi_ecall_init(void)
if (ret)
return ret;
ret = sbi_ecall_register_extension(&ecall_srst);
if (ret)
return ret;
ret = sbi_ecall_register_extension(&ecall_pmu);
if (ret)
return ret;
ret = sbi_ecall_register_extension(&ecall_legacy);