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