From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas@monjalon.net>
Subject: Re: [PATCH v10 3/3] iFPGA: Add Intel FPGA BUS Rawdev
	Driver
Date: Wed, 09 May 2018 16:47:11 +0200
Message-ID: <2225742.ccNGmmKHOr@xps>
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Cc: dev@dpdk.org, roy.fan.zhang@intel.com, declan.doherty@intel.com,
 bruce.richardson@intel.com, shreyansh.jain@nxp.com, ferruh.yigit@intel.com,
 konstantin.ananyev@intel.com, tianfei.zhang@intel.com, song.liu@intel.com,
 hao.wu@intel.com, gaetan.rivet@6wind.com, Yanglong Wu <yanglong.wu@intel.com>
To: "Xu, Rosen" <rosen.xu@intel.com>
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09/05/2018 09:43, Xu, Rosen:
> From: Rosen Xu <rosen.xu@intel.com>
> 
> Add Intel FPGA BUS Rawdev Driver which is based on
> librte_rawdev library.
> 
> Signed-off-by: Rosen Xu <rosen.xu@intel.com>
> Signed-off-by: Yanglong Wu <yanglong.wu@intel.com>
> Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com>
> Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>

I have a compilation error:
	drivers/raw/ifpga_rawdev/base/ifpga_fme_pr.c:10:15: error:
	instruction requires: AVX-512 ISA

because of vmovdqu64:

#if defined(RTE_ARCH_X86_64)
static inline void copy512(const void *src, void *dst)
{
    asm volatile("vmovdqu64 (%0), %%zmm0;"
             "vmovntdq %%zmm0, (%1);"
             :
             : "r"(src), "r"(dst));
}
#else
static inline void copy512(const void *src, void *dst)
{
    UNUSED(src);
    UNUSED(dst);
    WARN_ON(1);
}
#endif

I suggest to fix it quickly without waiting a v11 with this:

static inline void copy512(const void *src, void *dst)
{
#ifdef CC_SUPPORT_AVX512F
    asm volatile("vmovdqu64 (%0), %%zmm0;"
             "vmovntdq %%zmm0, (%1);"
             :
             : "r"(src), "r"(dst));
#else
    UNUSED(src);
    UNUSED(dst);
    WARN_ON(1);
#endif
}

It does not make any runtime detection, but it's better than previously.