static void nouveau_dmem_page_free(struct page *page)
{
- struct nouveau_dmem_chunk *chunk;
- unsigned long idx;
-
- chunk = (void *)hmm_devmem_page_get_drvdata(page);
- idx = page_to_pfn(page) - chunk->pfn_first;
+ struct nouveau_dmem_chunk *chunk = page->zone_device_data;
+ unsigned long idx = page_to_pfn(page) - chunk->pfn_first;
/*
* FIXME:
dst_addr = fault->dma[fault->npages++];
- chunk = (void *)hmm_devmem_page_get_drvdata(spage);
+ chunk = spage->zone_device_data;
src_addr = page_to_pfn(spage) - chunk->pfn_first;
src_addr = (src_addr << PAGE_SHIFT) + chunk->bo->bo.offset;
list_add_tail(&chunk->list, &drm->dmem->chunk_empty);
page = pfn_to_page(chunk->pfn_first);
- for (j = 0; j < DMEM_CHUNK_NPAGES; ++j, ++page) {
- hmm_devmem_page_set_drvdata(page, (long)chunk);
- }
+ for (j = 0; j < DMEM_CHUNK_NPAGES; ++j, ++page)
+ page->zone_device_data = chunk;
}
NV_INFO(drm, "DMEM: registered %ldMB of device memory\n", size >> 20);
if (!dpage || dst_pfns[i] == MIGRATE_PFN_ERROR)
continue;
- chunk = (void *)hmm_devmem_page_get_drvdata(dpage);
+ chunk = dpage->zone_device_data;
dst_addr = page_to_pfn(dpage) - chunk->pfn_first;
dst_addr = (dst_addr << PAGE_SHIFT) + chunk->bo->bo.offset;
continue;
}
- chunk = (void *)hmm_devmem_page_get_drvdata(page);
+ chunk = page->zone_device_data;
addr = page_to_pfn(page) - chunk->pfn_first;
addr = (addr + chunk->bo->bo.mem.start) << PAGE_SHIFT;
static inline void hmm_mm_init(struct mm_struct *mm) {}
#endif /* IS_ENABLED(CONFIG_HMM_MIRROR) */
-#if IS_ENABLED(CONFIG_DEVICE_PRIVATE)
-/*
- * hmm_devmem_page_set_drvdata - set per-page driver data field
- *
- * @page: pointer to struct page
- * @data: driver data value to set
- *
- * Because page can not be on lru we have an unsigned long that driver can use
- * to store a per page field. This just a simple helper to do that.
- */
-static inline void hmm_devmem_page_set_drvdata(struct page *page,
- unsigned long data)
-{
- page->hmm_data = data;
-}
-
-/*
- * hmm_devmem_page_get_drvdata - get per page driver data field
- *
- * @page: pointer to struct page
- * Return: driver data value
- */
-static inline unsigned long hmm_devmem_page_get_drvdata(const struct page *page)
-{
- return page->hmm_data;
-}
-#endif /* CONFIG_DEVICE_PRIVATE */
-#else /* IS_ENABLED(CONFIG_HMM) */
-static inline void hmm_mm_destroy(struct mm_struct *mm) {}
-static inline void hmm_mm_init(struct mm_struct *mm) {}
-#endif /* IS_ENABLED(CONFIG_HMM) */
-
#endif /* LINUX_HMM_H */
struct { /* ZONE_DEVICE pages */
/** @pgmap: Points to the hosting device page map. */
struct dev_pagemap *pgmap;
- unsigned long hmm_data;
+ void *zone_device_data;
unsigned long _zd_pad_1; /* uses mapping */
};
__SetPageReserved(page);
/*
- * ZONE_DEVICE pages union ->lru with a ->pgmap back
- * pointer and hmm_data. It is a bug if a ZONE_DEVICE
- * page is ever freed or placed on a driver-private list.
+ * ZONE_DEVICE pages union ->lru with a ->pgmap back pointer
+ * and zone_device_data. It is a bug if a ZONE_DEVICE page is
+ * ever freed or placed on a driver-private list.
*/
page->pgmap = pgmap;
- page->hmm_data = 0;
+ page->zone_device_data = NULL;
/*
* Mark the block movable so that blocks are reserved for