[PATCH v4 02/11] lib: sbi: Update csr_read/write_num for PMU

[Atish Patra]

The Sscofpmf extension introduces mhpmevent[h] csrs to handle filtering
/overflow bits in RV32. There is no way to read/write mcountinhibit
using mcountinhibit csr using a variable.

Updated the support to read/write mhpmevent[h] and mcountinhibit csr.

Reviewed-by: Anup Patel <anup.patel at wdc.com>
Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
Signed-off-by: Atish Patra <atish.patra at wdc.com>
---
 lib/sbi/riscv_asm.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/lib/sbi/riscv_asm.c b/lib/sbi/riscv_asm.c
index 4c24a5132195..ea6dd0837774 100644
--- a/lib/sbi/riscv_asm.c
+++ b/lib/sbi/riscv_asm.c
@@ -124,6 +124,11 @@ unsigned long csr_read_num(int csr_num)
 	switchcase_csr_read_4(CSR_MHPMCOUNTER4, ret)
 	switchcase_csr_read_8(CSR_MHPMCOUNTER8, ret)
 	switchcase_csr_read_16(CSR_MHPMCOUNTER16, ret)
+	switchcase_csr_read(CSR_MCOUNTINHIBIT, ret)
+	switchcase_csr_read(CSR_MHPMEVENT3, ret)
+	switchcase_csr_read_4(CSR_MHPMEVENT4, ret)
+	switchcase_csr_read_8(CSR_MHPMEVENT8, ret)
+	switchcase_csr_read_16(CSR_MHPMEVENT16, ret)
 #if __riscv_xlen == 32
 	switchcase_csr_read(CSR_MCYCLEH, ret)
 	switchcase_csr_read(CSR_MINSTRETH, ret)
@@ -131,6 +136,10 @@ unsigned long csr_read_num(int csr_num)
 	switchcase_csr_read_4(CSR_MHPMCOUNTER4H, ret)
 	switchcase_csr_read_8(CSR_MHPMCOUNTER8H, ret)
 	switchcase_csr_read_16(CSR_MHPMCOUNTER16H, ret)
+	switchcase_csr_read(CSR_MHPMEVENT3H, ret)
+	switchcase_csr_read_4(CSR_MHPMEVENT4H, ret)
+	switchcase_csr_read_8(CSR_MHPMEVENT8H, ret)
+	switchcase_csr_read_16(CSR_MHPMEVENT16H, ret)
 #endif
 
 	default:
@@ -189,6 +198,10 @@ void csr_write_num(int csr_num, unsigned long val)
 	switchcase_csr_write_4(CSR_MHPMCOUNTER4H, val)
 	switchcase_csr_write_8(CSR_MHPMCOUNTER8H, val)
 	switchcase_csr_write_16(CSR_MHPMCOUNTER16H, val)
+	switchcase_csr_write(CSR_MHPMEVENT3H, val)
+	switchcase_csr_write_4(CSR_MHPMEVENT4H, val)
+	switchcase_csr_write_8(CSR_MHPMEVENT8H, val)
+	switchcase_csr_write_16(CSR_MHPMEVENT16H, val)
 #endif
 	switchcase_csr_write(CSR_MCOUNTINHIBIT, val)
 	switchcase_csr_write(CSR_MHPMEVENT3, val)
-- 
2.31.1