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https://github.com/tiagovignatti/intel-gpu-tools.git
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95374225e8
A few of the tools can be performed post-mortem from a different system, so it is useful to be able to compile those tools on those foreign systems. Obviously, any program to interact with the PCI device or talk to GEM will fail on a non-Intel system. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/*
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* Copyright © 2007 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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* Ben Gamari <bgamari.foss@gmail.com>
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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 <err.h>
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#include "intel_gpu_tools.h"
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int main(int argc, char** argv)
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{
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uint32_t reg, value;
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volatile uint32_t *ptr;
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if (argc < 3) {
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printf("Usage: %s addr value\n", argv[0]);
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printf(" WARNING: This is dangerous to you and your system's health.\n");
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printf(" Only for use in debugging.\n");
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exit(1);
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}
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intel_get_mmio(intel_get_pci_device());
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sscanf(argv[1], "0x%x", ®);
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sscanf(argv[2], "0x%x", &value);
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ptr = (volatile uint32_t *)((volatile char *)mmio + reg);
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printf("Value before: 0x%X\n", *ptr);
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*ptr = value;
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printf("Value after: 0x%X\n", *ptr);
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return 0;
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}
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