diff options
| author | Francois Dugast <francois.dugast@intel.com> | 2025-08-05 15:59:03 +0200 |
|---|---|---|
| committer | Francois Dugast <francois.dugast@intel.com> | 2025-08-06 13:34:42 +0200 |
| commit | f35a6cdf8a6d69f2fb35ece202a09f13fe7c87b2 (patch) | |
| tree | 427fbf6ad3369a05b22cc2ce75ee412de38faf64 /include/drm | |
| parent | 81aa3c7c62049b42959bd4054c3a3ed34b2d5bf4 (diff) | |
drm/pagemap: Use struct drm_pagemap_addr in mapping and copy functions
This struct embeds more information than just the DMA address. This will
help later to support folio orders greater than zero. At this point, there
is no functional change as the only struct member used is addr.
In Xe, adapt to the new drm_gpusvm_devmem_ops type signatures using struct
drm_pagemap_addr, as well as the internal xe SVM functions implementing
those operations. The use of this struct is propagated to xe_migrate as it
makes indexed accesses to the next DMA address but they are no longer
contiguous.
v2:
- Rename drm_pagemap_device_addr to drm_pagemap_addr (Matthew Brost)
- Squash with patch for Xe (Matthew Brost)
- Set proto and dir for completeness (Matthew Brost)
- Assess DMA map protocol (Matthew Brost)
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://lore.kernel.org/r/20250805140028.599361-3-francois.dugast@intel.com
Signed-off-by: Francois Dugast <francois.dugast@intel.com>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_pagemap.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/drm/drm_pagemap.h b/include/drm/drm_pagemap.h index 69d6ee49a3de..1d5919a99139 100644 --- a/include/drm/drm_pagemap.h +++ b/include/drm/drm_pagemap.h @@ -170,7 +170,7 @@ struct drm_pagemap_devmem_ops { /** * @copy_to_devmem: Copy to device memory (required for migration) * @pages: Pointer to array of device memory pages (destination) - * @dma_addr: Pointer to array of DMA addresses (source) + * @pagemap_addr: Pointer to array of DMA information (source) * @npages: Number of pages to copy * * Copy pages to device memory. @@ -178,13 +178,13 @@ struct drm_pagemap_devmem_ops { * Return: 0 on success, a negative error code on failure. */ int (*copy_to_devmem)(struct page **pages, - dma_addr_t *dma_addr, + struct drm_pagemap_addr *pagemap_addr, unsigned long npages); /** * @copy_to_ram: Copy to system RAM (required for migration) * @pages: Pointer to array of device memory pages (source) - * @dma_addr: Pointer to array of DMA addresses (destination) + * @pagemap_addr: Pointer to array of DMA information (destination) * @npages: Number of pages to copy * * Copy pages to system RAM. @@ -192,7 +192,7 @@ struct drm_pagemap_devmem_ops { * Return: 0 on success, a negative error code on failure. */ int (*copy_to_ram)(struct page **pages, - dma_addr_t *dma_addr, + struct drm_pagemap_addr *pagemap_addr, unsigned long npages); }; |