[PATCH v7 02/24] RISC-V: Add FIRMWARE_READ_HI definition

Atish Patra atishp at rivosinc.com
Tue Apr 16 11:43:59 PDT 2024


SBI v2.0 added another function to SBI PMU extension to read
the upper bits of a counter with width larger than XLEN.

Add the definition for that function.

Reviewed-by: Andrew Jones <ajones at ventanamicro.com>
Reviewed-by: Clément Léger <cleger at rivosinc.com>
Acked-by: Conor Dooley <conor.dooley at microchip.com>
Reviewed-by: Anup Patel <anup at brainfault.org>
Signed-off-by: Atish Patra <atishp at rivosinc.com>
---
 arch/riscv/include/asm/sbi.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index 6e68f8dff76b..ef8311dafb91 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -131,6 +131,7 @@ enum sbi_ext_pmu_fid {
 	SBI_EXT_PMU_COUNTER_START,
 	SBI_EXT_PMU_COUNTER_STOP,
 	SBI_EXT_PMU_COUNTER_FW_READ,
+	SBI_EXT_PMU_COUNTER_FW_READ_HI,
 };
 
 union sbi_pmu_ctr_info {
-- 
2.34.1




More information about the linux-riscv mailing list