[v2 3/5] target/riscv: Add cycle & instret privilege mode filtering definitions

Atish Patra posted 5 patches 11 months ago
Maintainers: Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Weiwei Li <liwei1518@gmail.com>, Daniel Henrique Barboza <dbarboza@ventanamicro.com>, Liu Zhiwei <zhiwei_liu@linux.alibaba.com>
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[v2 3/5] target/riscv: Add cycle & instret privilege mode filtering definitions
Posted by Atish Patra 11 months ago
From: Kaiwen Xue <kaiwenx@rivosinc.com>

This adds the definitions for ISA extension smcntrpmf.

Signed-off-by: Kaiwen Xue <kaiwenx@rivosinc.com>
Signed-off-by: Atish Patra <atishp@rivosinc.com>
---
 target/riscv/cpu.c      |  1 -
 target/riscv/cpu.h      |  6 ++++++
 target/riscv/cpu_bits.h | 29 +++++++++++++++++++++++++++++
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index da3f05cd5373..54395f95b299 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -1297,7 +1297,6 @@ const char *riscv_get_misa_ext_description(uint32_t bit)
 const RISCVCPUMultiExtConfig riscv_cpu_extensions[] = {
     /* Defaults for standard extensions */
     MULTI_EXT_CFG_BOOL("sscofpmf", ext_sscofpmf, false),
-    DEFINE_PROP_BOOL("smcntrpmf", RISCVCPU, cfg.ext_smcntrpmf, false),
     MULTI_EXT_CFG_BOOL("zifencei", ext_zifencei, true),
     MULTI_EXT_CFG_BOOL("zicsr", ext_zicsr, true),
     MULTI_EXT_CFG_BOOL("zihintntl", ext_zihintntl, true),
diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index d74b361be641..34617c4c4bab 100644
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -319,6 +319,12 @@ struct CPUArchState {
 
     target_ulong mcountinhibit;
 
+    /* PMU cycle & instret privilege mode filtering */
+    target_ulong mcyclecfg;
+    target_ulong mcyclecfgh;
+    target_ulong minstretcfg;
+    target_ulong minstretcfgh;
+
     /* PMU counter state */
     PMUCTRState pmu_ctrs[RV_MAX_MHPMCOUNTERS];
 
diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h
index ebd7917d490a..0ee91e502e8f 100644
--- a/target/riscv/cpu_bits.h
+++ b/target/riscv/cpu_bits.h
@@ -401,6 +401,10 @@
 /* Machine counter-inhibit register */
 #define CSR_MCOUNTINHIBIT   0x320
 
+/* Machine counter configuration registers */
+#define CSR_MCYCLECFG       0x321
+#define CSR_MINSTRETCFG     0x322
+
 #define CSR_MHPMEVENT3      0x323
 #define CSR_MHPMEVENT4      0x324
 #define CSR_MHPMEVENT5      0x325
@@ -431,6 +435,9 @@
 #define CSR_MHPMEVENT30     0x33e
 #define CSR_MHPMEVENT31     0x33f
 
+#define CSR_MCYCLECFGH      0x721
+#define CSR_MINSTRETCFGH    0x722
+
 #define CSR_MHPMEVENT3H     0x723
 #define CSR_MHPMEVENT4H     0x724
 #define CSR_MHPMEVENT5H     0x725
@@ -885,6 +892,28 @@ typedef enum RISCVException {
 /* PMU related bits */
 #define MIE_LCOFIE                         (1 << IRQ_PMU_OVF)
 
+#define MCYCLECFG_BIT_MINH                 BIT_ULL(62)
+#define MCYCLECFGH_BIT_MINH                BIT(30)
+#define MCYCLECFG_BIT_SINH                 BIT_ULL(61)
+#define MCYCLECFGH_BIT_SINH                BIT(29)
+#define MCYCLECFG_BIT_UINH                 BIT_ULL(60)
+#define MCYCLECFGH_BIT_UINH                BIT(28)
+#define MCYCLECFG_BIT_VSINH                BIT_ULL(59)
+#define MCYCLECFGH_BIT_VSINH               BIT(27)
+#define MCYCLECFG_BIT_VUINH                BIT_ULL(58)
+#define MCYCLECFGH_BIT_VUINH               BIT(26)
+
+#define MINSTRETCFG_BIT_MINH               BIT_ULL(62)
+#define MINSTRETCFGH_BIT_MINH              BIT(30)
+#define MINSTRETCFG_BIT_SINH               BIT_ULL(61)
+#define MINSTRETCFGH_BIT_SINH              BIT(29)
+#define MINSTRETCFG_BIT_UINH               BIT_ULL(60)
+#define MINSTRETCFGH_BIT_UINH              BIT(28)
+#define MINSTRETCFG_BIT_VSINH              BIT_ULL(59)
+#define MINSTRETCFGH_BIT_VSINH             BIT(27)
+#define MINSTRETCFG_BIT_VUINH              BIT_ULL(58)
+#define MINSTRETCFGH_BIT_VUINH             BIT(26)
+
 #define MHPMEVENT_BIT_OF                   BIT_ULL(63)
 #define MHPMEVENTH_BIT_OF                  BIT(31)
 #define MHPMEVENT_BIT_MINH                 BIT_ULL(62)
-- 
2.34.1