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/*
* Copyright 2003 VMware, Inc.
* Copyright © 2006 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.
*/
/**
* \file intel_debug.c
*
* Support for the INTEL_DEBUG environment variable, along with other
* miscellaneous debugging code.
*/
#include "brw_context.h"
#include "intel_debug.h"
#include "utils.h"
#include "util/u_atomic.h" /* for p_atomic_cmpxchg */
uint64_t INTEL_DEBUG = 0;
static const struct dri_debug_control debug_control[] = {
{ "tex", DEBUG_TEXTURE},
{ "state", DEBUG_STATE},
{ "blit", DEBUG_BLIT},
{ "mip", DEBUG_MIPTREE},
{ "fall", DEBUG_PERF},
{ "perf", DEBUG_PERF},
{ "perfmon", DEBUG_PERFMON},
{ "bat", DEBUG_BATCH},
{ "pix", DEBUG_PIXEL},
{ "buf", DEBUG_BUFMGR},
{ "fbo", DEBUG_FBO},
{ "fs", DEBUG_WM },
{ "gs", DEBUG_GS},
{ "sync", DEBUG_SYNC},
{ "prim", DEBUG_PRIMS },
{ "vert", DEBUG_VERTS },
{ "dri", DEBUG_DRI },
{ "sf", DEBUG_SF },
{ "stats", DEBUG_STATS },
{ "wm", DEBUG_WM },
{ "urb", DEBUG_URB },
{ "vs", DEBUG_VS },
{ "clip", DEBUG_CLIP },
{ "aub", DEBUG_AUB },
{ "shader_time", DEBUG_SHADER_TIME },
{ "no16", DEBUG_NO16 },
{ "blorp", DEBUG_BLORP },
{ "nodualobj", DEBUG_NO_DUAL_OBJECT_GS },
{ "optimizer", DEBUG_OPTIMIZER },
{ "ann", DEBUG_ANNOTATION },
{ "no8", DEBUG_NO8 },
{ "vec4", DEBUG_VEC4VS },
{ "spill", DEBUG_SPILL },
{ "cs", DEBUG_CS },
{ NULL, 0 }
};
uint64_t
intel_debug_flag_for_shader_stage(gl_shader_stage stage)
{
uint64_t flags[] = {
[MESA_SHADER_VERTEX] = DEBUG_VS,
[MESA_SHADER_TESS_CTRL] = 0,
[MESA_SHADER_TESS_EVAL] = 0,
[MESA_SHADER_GEOMETRY] = DEBUG_GS,
[MESA_SHADER_FRAGMENT] = DEBUG_WM,
[MESA_SHADER_COMPUTE] = DEBUG_CS,
};
STATIC_ASSERT(MESA_SHADER_STAGES == 6);
return flags[stage];
}
void
brw_process_intel_debug_variable(struct intel_screen *screen)
{
uint64_t intel_debug = driParseDebugString(getenv("INTEL_DEBUG"), debug_control);
(void) p_atomic_cmpxchg(&INTEL_DEBUG, 0, intel_debug);
if (INTEL_DEBUG & DEBUG_BUFMGR)
dri_bufmgr_set_debug(screen->bufmgr, true);
if ((INTEL_DEBUG & DEBUG_SHADER_TIME) && screen->devinfo->gen < 7) {
fprintf(stderr,
"shader_time debugging requires gen7 (Ivybridge) or better.\n");
INTEL_DEBUG &= ~DEBUG_SHADER_TIME;
}
if (INTEL_DEBUG & DEBUG_AUB)
drm_intel_bufmgr_gem_set_aub_dump(screen->bufmgr, true);
}
/**
* Reads an environment variable and interprets its value as a boolean.
*
* Recognizes 0/false/no and 1/true/yes. Other values result in the default value.
*/
bool
brw_env_var_as_boolean(const char *var_name, bool default_value)
{
const char *str = getenv(var_name);
if (str == NULL)
return default_value;
if (strcmp(str, "1") == 0 ||
strcasecmp(str, "true") == 0 ||
strcasecmp(str, "yes") == 0) {
return true;
} else if (strcmp(str, "0") == 0 ||
strcasecmp(str, "false") == 0 ||
strcasecmp(str, "no") == 0) {
return false;
} else {
return default_value;
}
}
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