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media: ipu6: Drop unused ipu6_dma_get_sgtable()

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ipu6_dma_get_sgtable() is now unused. Drop it.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Sakari Ailus 2025-02-25 10:54:14 +02:00 committed by Hans Verkuil
parent 109bc8fb23
commit d89ad44197
2 changed files with 0 additions and 36 deletions
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33
drivers/media/pci/intel/ipu6/ipu6-dma.c
View File

@ -457,36 +457,3 @@ void ipu6_dma_unmap_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
ipu6_dma_unmap_sg(sys, sgt->sgl, sgt->nents, dir, attrs);
}
EXPORT_SYMBOL_NS_GPL(ipu6_dma_unmap_sgtable, "INTEL_IPU6");
/*
* Create scatter-list for the already allocated DMA buffer
*/
int ipu6_dma_get_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
void *cpu_addr, dma_addr_t handle, size_t size,
unsigned long attrs)
{
struct device *dev = &sys->auxdev.dev;
struct ipu6_mmu *mmu = sys->mmu;
struct vm_info *info;
int n_pages;
int ret = 0;
info = get_vm_info(mmu, handle);
if (!info)
return -EFAULT;
if (!info->vaddr)
return -EFAULT;
if (WARN_ON(!info->pages))
return -ENOMEM;
n_pages = PFN_UP(size);
ret = sg_alloc_table_from_pages(sgt, info->pages, n_pages, 0, size,
GFP_KERNEL);
if (ret)
dev_warn(dev, "get sgt table failed\n");
return ret;
}

3
drivers/media/pci/intel/ipu6/ipu6-dma.h
View File

@ -43,7 +43,4 @@ int ipu6_dma_map_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
enum dma_data_direction dir, unsigned long attrs);
void ipu6_dma_unmap_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
enum dma_data_direction dir, unsigned long attrs);
int ipu6_dma_get_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
void *cpu_addr, dma_addr_t handle, size_t size,
unsigned long attrs);
#endif /* IPU6_DMA_H */