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/*
* psr.h: Platform Shared Resource related service for guest.
*
* Copyright (c) 2014, Intel Corporation
* Author: Dongxiao Xu <dongxiao.xu@intel.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#ifndef __ASM_PSR_H__
#define __ASM_PSR_H__
#include <xen/types.h>
/* CAT cpuid level */
#define PSR_CPUID_LEVEL_CAT 0x10
/* Resource Type Enumeration */
#define PSR_RESOURCE_TYPE_L3 0x2
#define PSR_RESOURCE_TYPE_L2 0x4
#define PSR_RESOURCE_TYPE_MBA 0x8
/* L3 Monitoring Features */
#define PSR_CMT_L3_OCCUPANCY 0x1
/* CDP Capability */
#define PSR_CAT_CDP_CAPABILITY (1u << 2)
/* L3 CDP Enable bit*/
#define PSR_L3_QOS_CDP_ENABLE_BIT 0x0
/* Used by psr_get_info() */
#define PSR_INFO_IDX_COS_MAX 0
#define PSR_INFO_IDX_CAT_CBM_LEN 1
#define PSR_INFO_IDX_CAT_FLAGS 2
#define PSR_INFO_IDX_MBA_THRTL_MAX 1
#define PSR_INFO_IDX_MBA_FLAGS 2
#define PSR_INFO_ARRAY_SIZE 3
struct psr_cmt_l3 {
unsigned int features;
unsigned int upscaling_factor;
unsigned int rmid_max;
};
struct psr_cmt {
unsigned int rmid_max;
unsigned int features;
domid_t *rmid_to_dom;
struct psr_cmt_l3 l3;
};
enum psr_type {
PSR_TYPE_L3_CBM,
PSR_TYPE_L3_CODE,
PSR_TYPE_L3_DATA,
PSR_TYPE_L2_CBM,
PSR_TYPE_MBA_THRTL,
PSR_TYPE_UNKNOWN,
};
extern struct psr_cmt *psr_cmt;
static inline bool_t psr_cmt_enabled(void)
{
return !!psr_cmt;
}
int psr_alloc_rmid(struct domain *d);
void psr_free_rmid(struct domain *d);
void psr_ctxt_switch_to(struct domain *d);
int psr_get_info(unsigned int socket, enum psr_type type,
uint32_t data[], unsigned int array_len);
int psr_get_val(struct domain *d, unsigned int socket,
uint32_t *val, enum psr_type type);
int psr_set_val(struct domain *d, unsigned int socket,
uint64_t val, enum psr_type type);
void psr_domain_init(struct domain *d);
void psr_domain_free(struct domain *d);
#endif /* __ASM_PSR_H__ */
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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