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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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82f682514a
All current users of pm_qos_add_request() have the ability to supply the memory required by the pm_qos routines, so make them do this and eliminate the kmalloc() with pm_qos_add_request(). This has the double benefit of making the call never fail and allowing it to be called from atomic context. Signed-off-by: James Bottomley <James.Bottomley@suse.de> Signed-off-by: mark gross <markgross@thegnar.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
35 lines
1.0 KiB
C
35 lines
1.0 KiB
C
#ifndef _LINUX_PM_QOS_PARAMS_H
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#define _LINUX_PM_QOS_PARAMS_H
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/* interface for the pm_qos_power infrastructure of the linux kernel.
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*
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* Mark Gross <mgross@linux.intel.com>
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*/
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#include <linux/plist.h>
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#include <linux/notifier.h>
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#include <linux/miscdevice.h>
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#define PM_QOS_RESERVED 0
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#define PM_QOS_CPU_DMA_LATENCY 1
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#define PM_QOS_NETWORK_LATENCY 2
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#define PM_QOS_NETWORK_THROUGHPUT 3
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#define PM_QOS_NUM_CLASSES 4
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#define PM_QOS_DEFAULT_VALUE -1
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struct pm_qos_request_list {
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struct plist_node list;
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int pm_qos_class;
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};
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void pm_qos_add_request(struct pm_qos_request_list *l, int pm_qos_class, s32 value);
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void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req,
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s32 new_value);
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void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req);
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int pm_qos_request(int pm_qos_class);
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int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier);
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int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier);
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int pm_qos_request_active(struct pm_qos_request_list *req);
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#endif
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