During the FDT generation use the existing mask containing the enabled
counters rather then generating a new one. Using the existing mask will
support the use of discontinuous counters.
Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
---
hw/riscv/virt.c | 2 +-
target/riscv/pmu.c | 6 +-----
target/riscv/pmu.h | 2 +-
3 files changed, 3 insertions(+), 7 deletions(-)
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 5edc1d98d2..acdbaf9da5 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -722,7 +722,7 @@ static void create_fdt_pmu(RISCVVirtState *s)
pmu_name = g_strdup_printf("/pmu");
qemu_fdt_add_subnode(ms->fdt, pmu_name);
qemu_fdt_setprop_string(ms->fdt, pmu_name, "compatible", "riscv,pmu");
- riscv_pmu_generate_fdt_node(ms->fdt, hart.cfg.pmu_num, pmu_name);
+ riscv_pmu_generate_fdt_node(ms->fdt, hart.pmu_avail_ctrs, pmu_name);
g_free(pmu_name);
}
diff --git a/target/riscv/pmu.c b/target/riscv/pmu.c
index 13801ccb78..7ddf4977b1 100644
--- a/target/riscv/pmu.c
+++ b/target/riscv/pmu.c
@@ -34,13 +34,9 @@
* to provide the correct value as well. Heterogeneous PMU per hart is not
* supported yet. Thus, number of counters are same across all harts.
*/
-void riscv_pmu_generate_fdt_node(void *fdt, int num_ctrs, char *pmu_name)
+void riscv_pmu_generate_fdt_node(void *fdt, uint32_t cmask, char *pmu_name)
{
uint32_t fdt_event_ctr_map[15] = {};
- uint32_t cmask;
-
- /* All the programmable counters can map to any event */
- cmask = MAKE_32BIT_MASK(3, num_ctrs);
/*
* The event encoding is specified in the SBI specification
diff --git a/target/riscv/pmu.h b/target/riscv/pmu.h
index 88e0713296..505fc850d3 100644
--- a/target/riscv/pmu.h
+++ b/target/riscv/pmu.h
@@ -28,6 +28,6 @@ void riscv_pmu_init(RISCVCPU *cpu, Error **errp);
int riscv_pmu_update_event_map(CPURISCVState *env, uint64_t value,
uint32_t ctr_idx);
int riscv_pmu_incr_ctr(RISCVCPU *cpu, enum riscv_pmu_event_idx event_idx);
-void riscv_pmu_generate_fdt_node(void *fdt, int num_counters, char *pmu_name);
+void riscv_pmu_generate_fdt_node(void *fdt, uint32_t cmask, char *pmu_name);