asdk-libdrm

/*

 * Copyright © 2009-2011 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.

 */

​

#include <assert.h>

#include <stdint.h>

#include <stdlib.h>

#include <stdio.h>

#include <stdbool.h>

#include <stdarg.h>

#include <string.h>

​

#include "intel_chipset.h"

#include "intel_bufmgr.h"

​

/* Struct for tracking drm_intel_decode state. */

struct drm_intel_decode {

    /** stdio file where the output should land.  Defaults to stdout. */

    FILE *out;

​

    /** PCI device ID. */

    uint32_t devid;

​

    /**

     * Shorthand device identifier: 3 is 915, 4 is 965, 5 is

     * Ironlake, etc.

     */

    int gen;

​

    /** GPU address of the start of the current packet. */

    uint32_t hw_offset;

    /** CPU virtual address of the start of the current packet. */

    uint32_t *data;

    /** DWORDs of remaining batchbuffer data starting from the packet. */

    uint32_t count;

​

    /** GPU address of the start of the batchbuffer data. */

    uint32_t base_hw_offset;

    /** CPU Virtual address of the start of the batchbuffer data. */

    uint32_t *base_data;

    /** Number of DWORDs of batchbuffer data. */

    uint32_t base_count;

​

    /** @{

     * GPU head and tail pointers, which will be noted in the dump, or ~0.

     */

    uint32_t head, tail;

    /** @} */

​

    /**

     * Whether to dump the dwords after MI_BATCHBUFFER_END.

     *

     * This sometimes provides clues in corrupted batchbuffers,

     * and is used by the intel-gpu-tools.

     */

    bool dump_past_end;

​

    bool overflowed;

};

​

static FILE *out;

static uint32_t saved_s2 = 0, saved_s4 = 0;

static char saved_s2_set = 0, saved_s4_set = 0;

static uint32_t head_offset = 0xffffffff;   /* undefined */

static uint32_t tail_offset = 0xffffffff;   /* undefined */

​

#ifndef ARRAY_SIZE

#define ARRAY_SIZE(A) (sizeof(A)/sizeof(A[0]))

#endif

​

#define BUFFER_FAIL(_count, _len, _name) do {           \

    fprintf(out, "Buffer size too small in %s (%d < %d)\n", \

        (_name), (_count), (_len));             \