diff options
| author | Mikko Perttunen <mperttunen@nvidia.com> | 2016-12-14 14:16:14 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2017-04-05 19:11:43 +0300 |
| commit | 404bfb78daf3bedafb0bfab24947059575cbea3d (patch) | |
| tree | 59b8ed6b140ce74ffeb94e1488ee7818f3b02c18 /drivers/gpu/host1x/cdma.h | |
| parent | 8cadb01d2c2f520a890d1bc78b45471f21b9b76d (diff) | |
| download | linux-404bfb78daf3bedafb0bfab24947059575cbea3d.tar.xz | |
gpu: host1x: Add IOMMU support
Add support for the Host1x unit to be located behind
an IOMMU. This is required when gather buffers may be
allocated non-contiguously in physical memory, as can
be the case when TegraDRM is also using the IOMMU.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/host1x/cdma.h')
| -rw-r--r-- | drivers/gpu/host1x/cdma.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/host1x/cdma.h b/drivers/gpu/host1x/cdma.h index 470087af8fe5..ec170a78f4e1 100644 --- a/drivers/gpu/host1x/cdma.h +++ b/drivers/gpu/host1x/cdma.h @@ -43,10 +43,12 @@ struct host1x_job; struct push_buffer { void *mapped; /* mapped pushbuffer memory */ - dma_addr_t phys; /* physical address of pushbuffer */ + dma_addr_t dma; /* device address of pushbuffer */ + phys_addr_t phys; /* physical address of pushbuffer */ u32 fence; /* index we've written */ u32 pos; /* index to write to */ - u32 size_bytes; + u32 size; + u32 alloc_size; }; struct buffer_timeout { |