Date: Fri, 24 Mar 2017 17:38:29 -0700 From: Christopher Bowman <crb@chrisbowman.com> To: freebsd-hackers@freebsd.org Subject: large PCIe BARs Message-ID: <21FF81F3-D290-4682-AB88-5769C52499C3@chrisbowman.com>
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I have an FPGA PCIe device and driver I designing. I think my driver is = trying to map the PCIe address space for one of the BARs and it=E2=80=99s = failing. My guess is that it=E2=80=99s failing due to the size. The = board has 2G of onboard memory that I=E2=80=99d like to present as one = large BAR. Does FreeBSD (11.0 release) allow for mapping PCIe resources = that larger? If not is there a limit? If so any one have any comments? Thanks, Christopher=20 sp6050: probing for SP605 sp6050: <Xilinx SP605 board> at device 0.0 on pci3 sp6050: attach of SP605 sp6050: 0x40000000 bytes of rid 0x10 res 3 failed (0, = 0xffffffffffffffff). sp6050: Could not map memory device_attach: sp6050 attach returned 6
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