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fpga: dfl: afu: add DFL_FPGA_GET_API_VERSION/CHECK_EXTENSION ioctls support

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DFL_FPGA_GET_API_VERSION and DFL_FPGA_CHECK_EXTENSION ioctls are common
ones which need to be supported by all feature devices drivers including
FME and AFU. This patch implements above 2 ioctls in FPGA Accelerated
Function Unit (AFU) driver.

Signed-off-by: Tim Whisonant <tim.whisonant@intel.com>
Signed-off-by: Enno Luebbers <enno.luebbers@intel.com>
Signed-off-by: Shiva Rao <shiva.rao@intel.com>
Signed-off-by: Christopher Rauer <christopher.rauer@intel.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Signed-off-by: Wu Hao <hao.wu@intel.com>
Acked-by: Alan Tull <atull@kernel.org>
Acked-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wu Hao 2018-06-30 08:53:33 +08:00 committed by Greg Kroah-Hartman
parent e4664c0ee4
commit 6fd893c409
1 changed files with 11 additions and 0 deletions
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11
drivers/fpga/dfl-afu-main.c
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@ -236,6 +236,13 @@ static int afu_release(struct inode *inode, struct file *filp)
return 0;
}
static long afu_ioctl_check_extension(struct dfl_feature_platform_data *pdata,
unsigned long arg)
{
/* No extension support for now */
return 0;
}
static long afu_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
struct platform_device *pdev = filp->private_data;
@ -248,6 +255,10 @@ static long afu_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
pdata = dev_get_platdata(&pdev->dev);
switch (cmd) {
case DFL_FPGA_GET_API_VERSION:
return DFL_FPGA_API_VERSION;
case DFL_FPGA_CHECK_EXTENSION:
return afu_ioctl_check_extension(pdata, arg);
default:
/*
* Let sub-feature's ioctl function to handle the cmd