diff options
| author | Lizhi Hou <lizhi.hou@amd.com> | 2023-01-19 08:32:06 -0800 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-02-10 11:32:26 +0530 |
| commit | ecf294a6f63f882319485f807754dacaeae96e9d (patch) | |
| tree | a3eb1905b29b4034b834776a3df71321e9d7afd2 /include/linux/dma | |
| parent | 17ce252266c7f016ece026492c45838f852ddc79 (diff) | |
| download | linux-ecf294a6f63f882319485f807754dacaeae96e9d.tar.gz linux-ecf294a6f63f882319485f807754dacaeae96e9d.tar.bz2 linux-ecf294a6f63f882319485f807754dacaeae96e9d.zip | |
dmaengine: xilinx: xdma: Add user logic interrupt support
The Xilinx DMA/Bridge Subsystem for PCIe (XDMA) provides up to 16 user
interrupt wires to user logic that generate interrupts to the host.
This patch adds APIs to enable/disable user logic interrupt for a given
interrupt wire index.
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Signed-off-by: Sonal Santan <sonal.santan@amd.com>
Signed-off-by: Max Zhen <max.zhen@amd.com>
Signed-off-by: Brian Xu <brian.xu@amd.com>
Tested-by: Martin Tuma <tumic@gpxsee.org>
Link: https://lore.kernel.org/r/1674145926-29449-3-git-send-email-lizhi.hou@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'include/linux/dma')
| -rw-r--r-- | include/linux/dma/amd_xdma.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/dma/amd_xdma.h b/include/linux/dma/amd_xdma.h new file mode 100644 index 000000000000..ceba69ed7cb4 --- /dev/null +++ b/include/linux/dma/amd_xdma.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2022, Advanced Micro Devices, Inc. + */ + +#ifndef _DMAENGINE_AMD_XDMA_H +#define _DMAENGINE_AMD_XDMA_H + +#include <linux/interrupt.h> +#include <linux/platform_device.h> + +int xdma_enable_user_irq(struct platform_device *pdev, u32 irq_num); +void xdma_disable_user_irq(struct platform_device *pdev, u32 irq_num); +int xdma_get_user_irq(struct platform_device *pdev, u32 user_irq_index); + +#endif /* _DMAENGINE_AMD_XDMA_H */ |