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Commit eee86f2a authored by Satya Durga Srinivasu Prabhala's avatar Satya Durga Srinivasu Prabhala
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soc: qcom: Add snapshot of hyp_core_ctl driver 



This snapshot is taken from msm-4.14 as of commit 8b96a3b7b02d46e
("qcom: hyp_core_ctl: Add a debugfs interface to set reserve CPUs").

Change-Id: I0e05043fec6dae76818720b5e542f85f701dae05
Signed-off-by: default avatarSatya Durga Srinivasu Prabhala <satyap@codeaurora.org>
parent e9e85b27

drivers/soc/qcom/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -635,3 +635,12 @@ config QMP_DEBUGFS_CLIENT 
	help

	  This options enables a driver which allows clients to send messages

	  to Alway On processor using QMP transport.



config QCOM_HYP_CORE_CTL

	bool "CPU reservation scheme for Hypervisor"

	depends on OKL4_GUEST

	help

	  This driver reserve the specified CPUS by isolating them. The reserved

	  CPUs can be assigned to the other guest OS by the hypervisor.

	  An offline CPU is considered as a reserved CPU since this OS can't use

	  it.

drivers/soc/qcom/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -69,3 +69,4 @@ obj-$(CONFIG_QTI_RPM_STATS_LOG) += rpmh_master_stat.o 
obj-$(CONFIG_QTI_RPM_STATS_LOG) += rpm_stats.o

obj-$(CONFIG_QCOM_MEM_OFFLINE) += mem-offline.o

obj-$(CONFIG_QMP_DEBUGFS_CLIENT) += qmp-debugfs-client.o

obj-$(CONFIG_QCOM_HYP_CORE_CTL) += hyp_core_ctl.o

drivers/soc/qcom/hyp_core_ctl.c

0 → 100644
+895 −0

File added.

Preview size limit exceeded, changes collapsed.

include/linux/cpuhotplug.h

+1 −0
Original line number Diff line number Diff line
@@ -69,6 +69,7 @@ enum cpuhp_state { 
	CPUHP_SLAB_PREPARE,

	CPUHP_MD_RAID5_PREPARE,

	CPUHP_RCUTREE_PREP,

	CPUHP_HYP_CORE_CTL_ISOLATION_DEAD,

	CPUHP_CORE_CTL_ISOLATION_DEAD,

	CPUHP_CPUIDLE_COUPLED_PREPARE,

	CPUHP_POWERPC_PMAC_PREPARE,

include/trace/events/hyp_core_ctl.h

0 → 100644
+72 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/*

 *Copyright (c) 2018 The Linux Foundation. All rights reserved.

 */



#undef TRACE_SYSTEM

#define TRACE_SYSTEM hyp_core_ctl



#if !defined(_TRACE_HYP_CORE_CTL_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_HYP_CORE_CTL_H



#include <linux/tracepoint.h>



TRACE_EVENT(hyp_core_ctl_enable,



	TP_PROTO(bool enable),



	TP_ARGS(enable),



	TP_STRUCT__entry(

		__field(bool, enable)

	),



	TP_fast_assign(

		__entry->enable = enable;

	),



	TP_printk("enable=%d", __entry->enable)

);



TRACE_EVENT(hyp_core_ctl_status,



	TP_PROTO(struct hyp_core_ctl_data *hcd, const char *event),



	TP_ARGS(hcd, event),



	TP_STRUCT__entry(

		__string(event, event)

		__array(char, reserve, 32)

		__array(char, reserved, 32)

		__array(char, our_isolated, 32)

		__array(char, online, 32)

		__array(char, isolated, 32)

		__array(char, thermal, 32)

	),



	TP_fast_assign(

		__assign_str(event, event);

		scnprintf(__entry->reserve, sizeof(__entry->reserve), "%*pbl",

			  cpumask_pr_args(&hcd->reserve_cpus));

		scnprintf(__entry->reserved, sizeof(__entry->reserve), "%*pbl",

			  cpumask_pr_args(&hcd->final_reserved_cpus));

		scnprintf(__entry->our_isolated, sizeof(__entry->reserve),

			  "%*pbl", cpumask_pr_args(&hcd->our_isolated_cpus));

		scnprintf(__entry->online, sizeof(__entry->reserve), "%*pbl",

			  cpumask_pr_args(cpu_online_mask));

		scnprintf(__entry->isolated, sizeof(__entry->reserve), "%*pbl",

			  cpumask_pr_args(cpu_isolated_mask));

		scnprintf(__entry->thermal, sizeof(__entry->reserve), "%*pbl",

			  cpumask_pr_args(cpu_cooling_get_max_level_cpumask()));

	),



	TP_printk("event=%s reserve=%s reserved=%s our_isolated=%s online=%s isolated=%s thermal=%s",

		  __get_str(event), __entry->reserve, __entry->reserved,

		  __entry->our_isolated, __entry->online, __entry->isolated,

		  __entry->thermal)

);



#endif /* _TRACE_HYP_CORE_CTL_H */



/* This part must be outside protection */

#include <trace/define_trace.h>