Lines Matching +full:compound +full:- +full:device

1 /* SPDX-License-Identifier: GPL-2.0 */
8 #include <linux/percpu-refcount.h>
11 struct device;
14  * struct vmem_altmap - pre-allocated storage for vmemmap_populate
36  * Device memory that is not directly addressable by the CPU: CPU can neither
38  * backing the device memory. Doing so simplifies the implementation, but it is
46  * Device memory that is cache coherent from device and CPU point of view. This
48  * driver can hotplug the device memory using ZONE_DEVICE and with that memory
58  * fs truncate/hole punch) vs pinned pages (ex: device dma).
63  * that expose memory using a character device.
66  * Device memory residing in a PCI BAR intended for use with Peer-to-Peer
87 	 * Used for private (un-addressable) device memory only.  Must migrate
98 	 * When this is not implemented, or it returns -EOPNOTSUPP, the caller
108  * struct dev_pagemap - metadata for ZONE_DEVICE mappings
109  * @altmap: pre-allocated/reserved memory for vmemmap allocations
117  *	representation. A bigger value will set up compound struct pages
145 	return pgmap->ops && pgmap->ops->memory_failure;  in pgmap_has_memory_failure()
150 	if (pgmap->flags & PGMAP_ALTMAP_VALID)  in pgmap_altmap()
151 		return &pgmap->altmap;  in pgmap_altmap()
157 	return 1 << pgmap->vmemmap_shift;  in pgmap_vmemmap_nr()
164 		page->pgmap->type == MEMORY_DEVICE_PRIVATE;  in is_device_private_page()
169 	return is_device_private_page(&folio->page);  in folio_is_device_private()
176 		page->pgmap->type == MEMORY_DEVICE_PCI_P2PDMA;  in is_pci_p2pdma_page()
182 		page->pgmap->type == MEMORY_DEVICE_COHERENT;  in is_device_coherent_page()
187 	return is_device_coherent_page(&folio->page);  in folio_is_device_coherent()
194 void *devm_memremap_pages(struct device *dev, struct dev_pagemap *pgmap);
195 void devm_memunmap_pages(struct device *dev, struct dev_pagemap *pgmap);
202 static inline void *devm_memremap_pages(struct device *dev,  in devm_memremap_pages()
211 	return ERR_PTR(-ENXIO);  in devm_memremap_pages()
214 static inline void devm_memunmap_pages(struct device *dev,  in devm_memunmap_pages()
240 		percpu_ref_put(&pgmap->ref);  in put_dev_pagemap()