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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /include/linux/dca.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/linux/dca.h')
-rw-r--r-- | include/linux/dca.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/include/linux/dca.h b/include/linux/dca.h new file mode 100644 index 000000000..d6228e334 --- /dev/null +++ b/include/linux/dca.h @@ -0,0 +1,66 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved. + */ +#ifndef DCA_H +#define DCA_H + +#include <linux/pci.h> + +/* DCA Provider API */ + +/* DCA Notifier Interface */ +void dca_register_notify(struct notifier_block *nb); +void dca_unregister_notify(struct notifier_block *nb); + +#define DCA_PROVIDER_ADD 0x0001 +#define DCA_PROVIDER_REMOVE 0x0002 + +struct dca_provider { + struct list_head node; + const struct dca_ops *ops; + struct device *cd; + int id; +}; + +struct dca_domain { + struct list_head node; + struct list_head dca_providers; + struct pci_bus *pci_rc; +}; + +struct dca_ops { + int (*add_requester) (struct dca_provider *, struct device *); + int (*remove_requester) (struct dca_provider *, struct device *); + u8 (*get_tag) (struct dca_provider *, struct device *, + int cpu); + int (*dev_managed) (struct dca_provider *, struct device *); +}; + +struct dca_provider *alloc_dca_provider(const struct dca_ops *ops, + int priv_size); +void free_dca_provider(struct dca_provider *dca); +int register_dca_provider(struct dca_provider *dca, struct device *dev); +void unregister_dca_provider(struct dca_provider *dca, struct device *dev); + +static inline void *dca_priv(struct dca_provider *dca) +{ + return (void *)dca + sizeof(struct dca_provider); +} + +/* Requester API */ +#define DCA_GET_TAG_TWO_ARGS +int dca_add_requester(struct device *dev); +int dca_remove_requester(struct device *dev); +u8 dca_get_tag(int cpu); +u8 dca3_get_tag(struct device *dev, int cpu); + +/* internal stuff */ +int __init dca_sysfs_init(void); +void __exit dca_sysfs_exit(void); +int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev); +void dca_sysfs_remove_provider(struct dca_provider *dca); +int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot); +void dca_sysfs_remove_req(struct dca_provider *dca, int slot); + +#endif /* DCA_H */ |