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[RFC,06/21] RISC-V: QoS: define CBQRI resctrl resources and domains

Message ID 20230419111111.477118-7-dfustini@baylibre.com
State New
Headers
Series RISC-V: QoS: add CBQRI resctrl interface |

Commit Message

Drew Fustini April 19, 2023, 11:10 a.m. UTC 
  Define data structures to encapsulate the resctrl resource
and domain structures.

Co-developed-by: Adrien Ricciardi <aricciardi@baylibre.com>
Signed-off-by: Adrien Ricciardi <aricciardi@baylibre.com>
Signed-off-by: Drew Fustini <dfustini@baylibre.com>
---
 arch/riscv/kernel/qos/internal.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
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Patch

diff --git a/arch/riscv/kernel/qos/internal.h b/arch/riscv/kernel/qos/internal.h
index e07d7f92e206..a3ed98ce5dd6 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 */
 /* from qemu/include/hw/riscv/cbqri.h */
 struct riscv_cbqri_capacity_caps {
@@ -127,4 +132,26 @@  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       resctrl_dom;
+	// NCBLKS is 16 bit which is 2^16 = 65536
+	// If each bit is a block, then cc_block_mask could 1024 times 64 byte
+	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 */