From: Thierry Reding Date: Mon, 16 Sep 2024 13:33:20 +0000 (+0200) Subject: gpu: host1x: Set up device DMA parameters X-Git-Tag: v6.13-rc1~122^2~22^2~81 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b4ad4ef374d66cc8df3188bb1ddb65bce5fc9e50;p=thirdparty%2Fkernel%2Flinux.git 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 Reviewed-by: Christoph Hellwig Tested-by: Jon Hunter Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20240916133320.368620-1-thierry.reding@gmail.com --- diff --git a/drivers/gpu/host1x/context.c b/drivers/gpu/host1x/context.c index 955c971c528d4..a6f6779662a36 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 5a7a81e5f9bd0..9fa9c30a34e65 100644 --- a/include/linux/host1x.h +++ b/include/linux/host1x.h @@ -471,6 +471,7 @@ 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;