[PATCH RFC 06/19] RISC-V: QoS: define CBQRI resctrl resources and domains
Drew Fustini
fustini at kernel.org
Mon Jan 19 20:14:43 PST 2026
Define data structures to encapsulate the resctrl resource
and domain structures.
Co-developed-by: Adrien Ricciardi <aricciardi at baylibre.com>
Signed-off-by: Adrien Ricciardi <aricciardi at baylibre.com>
[fustini: rebased on riscv/for-next]
Signed-off-by: Drew Fustini <fustini at kernel.org>
---
arch/riscv/kernel/qos/internal.h | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/arch/riscv/kernel/qos/internal.h b/arch/riscv/kernel/qos/internal.h
index ff2c7eff50be..c0402dd06cfa 100644
--- a/arch/riscv/kernel/qos/internal.h
+++ b/arch/riscv/kernel/qos/internal.h
@@ -65,6 +65,11 @@
#define CBQRI_BC_ALLOC_CTL_OP_READ_LIMIT 2
#define CBQRI_BC_ALLOC_CTL_STATUS_SUCCESS 1
+int qos_resctrl_setup(void);
+void qos_resctrl_exit(void);
+int qos_resctrl_online_cpu(unsigned int cpu);
+int qos_resctrl_offline_cpu(unsigned int cpu);
+
/* Capacity Controller hardware capabilities */
struct riscv_cbqri_capacity_caps {
u16 ncblks; /* number of capacity blocks */
@@ -125,4 +130,26 @@ struct cbqri_controller {
bool mon_capable;
};
+struct cbqri_resctrl_res {
+ struct rdt_resource resctrl_res;
+ struct cbqri_controller controller;
+ u32 max_rcid;
+ u32 max_mcid;
+};
+
+struct cbqri_resctrl_dom {
+ struct rdt_domain_hdr resctrl_dom_hdr;
+ struct rdt_ctrl_domain resctrl_ctrl_dom;
+ struct rdt_mon_domain resctrl_mon_dom;
+ u64 cbm;
+ u64 rbwb;
+ u64 *ctrl_val;
+ struct cbqri_controller *hw_ctrl;
+};
+
+struct cbqri_config {
+ u64 cbm; /* capacity block mask */
+ u64 rbwb; /* reserved bandwidth blocks */
+};
+
#endif /* _ASM_RISCV_QOS_INTERNAL_H */
--
2.43.0
More information about the linux-riscv
mailing list