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| author | Thierry Reding <treding@nvidia.com> | 2024-09-16 16:33:20 +0300 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2024-10-15 19:46:25 +0300 |
| commit | eb0c062161cf5f98556a906c48b0cfc019d9e89c (patch) | |
| tree | 3cf320fd906d158914be841c118d5b311b5c74de | |
| parent | c8347f915e6779f6c861e7a041adf3559d51b363 (diff) | |
| download | linux-eb0c062161cf5f98556a906c48b0cfc019d9e89c.tar.xz | |
gpu: host1x: Set up device DMA parameters
In order to store device DMA parameters, the DMA framework depends on
the device's dma_parms field to point at a valid memory location. Add
backing storage for this in struct host1x_memory_context and point to
it.
Reported-by: Jonathan Hunter <jonathanh@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240916133320.368620-1-thierry.reding@gmail.com
(cherry picked from commit b4ad4ef374d66cc8df3188bb1ddb65bce5fc9e50)
Signed-off-by: Thierry Reding <treding@nvidia.com>
| -rw-r--r-- | drivers/gpu/host1x/context.c | 1 | ||||
| -rw-r--r-- | include/linux/host1x.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/context.c b/drivers/gpu/host1x/context.c index 955c971c528d..a6f6779662a3 100644 --- a/drivers/gpu/host1x/context.c +++ b/drivers/gpu/host1x/context.c @@ -58,6 +58,7 @@ int host1x_memory_context_list_init(struct host1x *host1x) ctx->dev.parent = host1x->dev; ctx->dev.release = host1x_memory_context_release; + ctx->dev.dma_parms = &ctx->dma_parms; dma_set_max_seg_size(&ctx->dev, UINT_MAX); err = device_add(&ctx->dev); diff --git a/include/linux/host1x.h b/include/linux/host1x.h index 9c8119ed13a4..c4dde3aafcac 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -466,6 +466,7 @@ struct host1x_memory_context { refcount_t ref; struct pid *owner; + struct device_dma_parameters dma_parms; struct device dev; u64 dma_mask; u32 stream_id; |