acrn-hypervisor/hypervisor/include/arch/x86/asm/rdt.h
Ziheng Li eb8bcb06b3 Update copyright year range in code headers
Modified the copyright year range in code, and corrected "int32_tel"
into "Intel" in two "hypervisor/include/debug/profiling.h" and
"hypervisor/include/debug/profiling_internal.h".

Tracked-On: #7559
Signed-off-by: Ziheng Li <ziheng.li@intel.com>
2022-07-15 11:48:35 +08:00

62 lines
1.7 KiB
C

/*
* Copyright (C) 2020-2022 Intel Corporation.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef RDT_H
#define RDT_H
enum {
RDT_RESOURCE_L3,
RDT_RESOURCE_L2,
RDT_RESOURCE_MBA,
/* Must be the last */
RDT_NUM_RESOURCES,
};
#define RDT_RESID_L3 1U
#define RDT_RESID_L2 2U
#define RDT_RESID_MBA 3U
extern const uint16_t hv_clos;
/* The instance of one RES_ID */
struct rdt_ins {
union {
struct {
uint32_t bitmask; /* A bitmask where each set bit indicates the corresponding cache way
may be used by other entities in the platform (e.g. GPU) */
uint16_t cbm_len; /* Length of Cache mask in bits */
bool is_cdp_enabled; /* True if support CDP */
} cache;
struct rdt_membw {
uint16_t mba_max; /* Max MBA delay throttling value supported */
bool delay_linear; /* True if memory B/W delay is in linear scale */
} membw;
} res;
uint16_t num_closids; /* Number of CLOSIDs available, 0 indicates resource is not supported.*/
uint32_t num_clos_config; /* Number of element in clos_config_array */
union clos_config *clos_config_array;
uint64_t cpu_mask; /* the CPUs this RDT applies */
};
/* The intel Resource Director Tech(RDT) based Allocation Tech support */
struct rdt_type {
uint32_t res_id; /* RDT_RESID_L3/RDT_RESID_L2/RDT_RESID_MBA */
uint32_t msr_qos_cfg; /* MSR addr to IA32_L3/L2_QOS_CFG */
uint32_t msr_base; /* MSR base to program clos value */
uint32_t num_ins; /* Number of element in ins_array */
struct rdt_ins *ins_array;
};
void setup_clos(uint16_t pcpu_id);
uint64_t clos2pqr_msr(uint16_t clos);
bool is_platform_rdt_capable(void);
const struct rdt_ins *get_rdt_res_ins(int res, uint16_t pcpu_id);
#endif /* RDT_H */