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41570d9bf5
... and test for what we mean instead. Reported-by: Diego Celix <dcelix@gmail.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
92 lines
2.3 KiB
C
92 lines
2.3 KiB
C
/*
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* Copyright © 2008 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Eric Anholt <eric@anholt.net>
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*
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*/
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <err.h>
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#include <assert.h>
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#include <sys/ioctl.h>
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#include <sys/fcntl.h>
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#include <sys/stat.h>
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#include <sys/mman.h>
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#include "intel_gpu_tools.h"
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void *mmio;
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void
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intel_map_file(char *file)
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{
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int fd;
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struct stat st;
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fd = open(file, O_RDWR);
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if (fd == -1) {
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fprintf(stderr, "Couldn't open %s: %s\n", file,
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strerror(errno));
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exit(1);
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}
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fstat(fd, &st);
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mmio = mmap(NULL, st.st_size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
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if (mmio == MAP_FAILED) {
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fprintf(stderr, "Couldn't mmap %s: %s\n", file,
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strerror(errno));
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exit(1);
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}
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close(fd);
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}
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void
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intel_get_mmio(struct pci_device *pci_dev)
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{
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uint32_t devid;
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int mmio_bar;
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int err;
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devid = pci_dev->device_id;
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if (IS_GEN2(devid))
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mmio_bar = 1;
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else
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mmio_bar = 0;
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err = pci_device_map_range (pci_dev,
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pci_dev->regions[mmio_bar].base_addr,
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pci_dev->regions[mmio_bar].size,
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PCI_DEV_MAP_FLAG_WRITABLE,
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&mmio);
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if (err != 0) {
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fprintf(stderr, "Couldn't map MMIO region: %s\n",
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strerror(err));
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exit(1);
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}
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}
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