include/linux/resctrl.h

1 /* SPDX-License-Identifier: GPL-2.0 */
14 #define RESCTRL_PICK_ANY_CPU		-1
25 /* max value for struct rdt_domain's mbps_val */
29  * enum resctrl_conf_type - The type of configuration.
53  * struct resctrl_staged_config - parsed configuration to be applied
68  * struct rdt_domain_hdr - common header for different domain types
82  * struct rdt_ctrl_domain - group of CPUs sharing a resctrl control resource
84  * @plr:		pseudo-locked region (if any) associated with domain
98  * struct rdt_mon_domain - group of CPUs sharing a resctrl monitor resource
102  * @mbm_total:		saved state for MBM total bandwidth
103  * @mbm_local:		saved state for MBM local bandwidth
122  * struct resctrl_cache - Cache allocation related data
142  * enum membw_throttle_mode - System's memory bandwidth throttling mode
144  * @THREAD_THROTTLE_MAX:	Memory bandwidth is throttled at the core
145  *				always using smallest bandwidth percentage
146  *				assigned to threads, aka "max throttling"
147  * @THREAD_THROTTLE_PER_THREAD:	Memory bandwidth is throttled at the thread
156  * struct resctrl_membw - Memory bandwidth allocation related data
157  * @min_bw:		Minimum memory bandwidth percentage user can request
158  * @bw_gran:		Granularity at which the memory bandwidth is allocated
159  * @delay_linear:	True if memory B/W delay is in linear scale
160  * @arch_needs_linear:	True if we can't configure non-linear resources
161  * @throttle_mode:	Bandwidth throttling mode when threads request
162  *			different memory bandwidths
164  * @mb_map:		Mapping of memory B/W percentage to memory B/W delay
186  * struct rdt_resource - attributes of a resctrl resource
194  * @membw:		If the component has bandwidth controls, their properties.
199  * @default_ctrl:	Specifies default cache cbm or memory B/W percent.
230  * struct resctrl_schema - configuration abilities of a resource presented to
231  *			   user-space
271  * resctrl_arch_rmid_read() - Read the eventid counter corresponding to rmid
287  *  for a short period of time). Call from a non-migrateable process context on
293  * 0 on success, or -EIO, -EINVAL etc on error.
300  * resctrl_arch_rmid_read_context_check()  - warn about invalid contexts
317  * resctrl_arch_reset_rmid() - Reset any private state associated with rmid
333  * resctrl_arch_reset_rmid_all() - Reset all private state associated with