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ANDROID: sched: gki: add padding to some structs to support WALT

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Add padding to below structs to support WALT based accounting:
	1. struct cpu_topology
	2. struct task_struct
	3. struct sched_domain_shared
	4. struct task_group
	5. struct root_domain
	6. struct rq

To accommodate potential future changes, reserving more memory than
what WALT needs today.

Bug: 171858786
Change-Id: If6d901174fc7963be3ae44daa799cb2953669ec1
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>
This commit is contained in:
Satya Durga Srinivasu Prabhala
2020-10-28 00:02:04 -07:00
committed by Todd Kjos
parent 8d5dc2cf06
commit 7a2a316228
4 changed files with 14 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
include/linux/arch_topology.h
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@@ -7,6 +7,7 @@
#include <linux/types.h>
#include <linux/percpu.h>
#include <linux/android_vendor.h>
void topology_normalize_cpu_scale(void);
int topology_update_cpu_topology(void);
@@ -54,6 +55,8 @@ struct cpu_topology {
cpumask_t thread_sibling;
cpumask_t core_sibling;
cpumask_t llc_sibling;
cpumask_t android_vendor_data1;
};
#ifdef CONFIG_GENERIC_ARCH_TOPOLOGY

2
include/linux/sched.h
View File

@@ -1330,7 +1330,7 @@ struct task_struct {
__mce_reserved : 62;
struct callback_head mce_kill_me;
#endif
ANDROID_VENDOR_DATA_ARRAY(1, 2);
ANDROID_VENDOR_DATA_ARRAY(1, 64);
/*
* New fields for task_struct should be added above here, so that

3
include/linux/sched/topology.h
View File

@@ -3,6 +3,7 @@
#define _LINUX_SCHED_TOPOLOGY_H
#include <linux/topology.h>
#include <linux/android_vendor.h>
#include <linux/sched/idle.h>
@@ -74,6 +75,8 @@ struct sched_domain_shared {
atomic_t ref;
atomic_t nr_busy_cpus;
int has_idle_cores;
ANDROID_VENDOR_DATA(1);
};
struct sched_domain {

7
kernel/sched/sched.h
View File

@@ -65,6 +65,7 @@
#include <linux/syscalls.h>
#include <linux/task_work.h>
#include <linux/tsacct_kern.h>
#include <linux/android_vendor.h>
#include <asm/tlb.h>
#include <asm-generic/vmlinux.lds.h>
@@ -430,6 +431,8 @@ struct task_group {
struct uclamp_se uclamp[UCLAMP_CNT];
/* Latency-sensitive flag used for a task group */
unsigned int latency_sensitive;
ANDROID_VENDOR_DATA_ARRAY(1, 4);
#endif
};
@@ -830,6 +833,8 @@ struct root_domain {
* CPUs of the rd. Protected by RCU.
*/
struct perf_domain __rcu *pd;
ANDROID_VENDOR_DATA_ARRAY(1, 4);
};
extern void init_defrootdomain(void);
@@ -1050,6 +1055,8 @@ struct rq {
/* Must be inspected within a rcu lock section */
struct cpuidle_state *idle_state;
#endif
ANDROID_VENDOR_DATA_ARRAY(1, 96);
};
#ifdef CONFIG_FAIR_GROUP_SCHED