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mesa/src/intel/ds/intel_tracepoints.py
Lionel Landwerlin 3984875792 u_trace: extend tracepoint end_of_pipe bit into flags 
We ran into an issue with Intel drivers where it became tricky to tell
whether a timestamp must be recorded with a special end-of-pipe
compute instruction or something else.

We initially tried to deal with that internally by checking some state
in the command buffers but turns out it doesn't work.

This change adds a flag field to the tracepoint to have that
information there and the flags are passed to the record_ts vfunc.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Danylo Piliaiev <dpiliaiev@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29438>
2024-05-30 06:38:04 +00:00

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#
# Copyright © 2021 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.
#
import argparse
import sys
# List of the default tracepoints enabled. By default most tracepoints are
# enabled, set tp_default=False to disable them by default.
#
# Currently only stall is disabled by default
intel_default_tps = []
#
# Tracepoint definitions:
#
def define_tracepoints(args):
from u_trace import Header, HeaderScope
from u_trace import ForwardDecl
from u_trace import Tracepoint
from u_trace import TracepointArg as Arg
from u_trace import TracepointArgStruct as ArgStruct
Header('intel_driver_ds.h', scope=HeaderScope.SOURCE)
Header('blorp/blorp_priv.h', scope=HeaderScope.HEADER)
Header('ds/intel_driver_ds.h', scope=HeaderScope.HEADER)
def begin_end_tp(name, tp_args=[], tp_struct=None, tp_print=None,
tp_default_enabled=True, end_pipelined=True,
compute=False,
need_cs_param=False):
global intel_default_tps
if tp_default_enabled:
intel_default_tps.append(name)
Tracepoint('intel_begin_{0}'.format(name),
toggle_name=name,
tp_perfetto='intel_ds_begin_{0}'.format(name),
need_cs_param=need_cs_param)
tp_flags = []
if end_pipelined:
if compute:
tp_flags.append('INTEL_DS_TRACEPOINT_FLAG_END_OF_PIPE_CS')
else:
tp_flags.append('INTEL_DS_TRACEPOINT_FLAG_END_OF_PIPE')
Tracepoint('intel_end_{0}'.format(name),
toggle_name=name,
args=tp_args,
tp_struct=tp_struct,
tp_perfetto='intel_ds_end_{0}'.format(name),
tp_print=tp_print,
tp_flags=tp_flags,
need_cs_param=need_cs_param)
# Frame tracepoints
begin_end_tp('frame',
tp_args=[Arg(type='uint32_t', var='frame', c_format='%u'),],
end_pipelined=False,
need_cs_param=True)
# Annotations for Queue(Begin|End)DebugUtilsLabelEXT
begin_end_tp('queue_annotation',
tp_args=[ArgStruct(type='unsigned', var='len'),
ArgStruct(type='const char *', var='str'),],
tp_struct=[Arg(type='uint8_t', name='dummy', var='0', c_format='%hhu'),
Arg(type='char', name='str', var='str', c_format='%s', length_arg='len + 1', copy_func='strncpy'),],
end_pipelined=False,
need_cs_param=True)
# Batch buffer tracepoints, only for Iris
begin_end_tp('batch',
tp_args=[Arg(type='uint8_t', var='name', c_format='%hhu'),],
end_pipelined=False)
# Command buffer tracepoints, only for Anv
begin_end_tp('cmd_buffer',
tp_args=[Arg(type='uint8_t', var='level', c_format='%hhu'),],
end_pipelined=False)
# Annotations for Cmd(Begin|End)DebugUtilsLabelEXT
begin_end_tp('cmd_buffer_annotation',
tp_args=[ArgStruct(type='unsigned', var='len'),
ArgStruct(type='const char *', var='str'),],
tp_struct=[Arg(type='uint8_t', name='dummy', var='0', c_format='%hhu'),
Arg(type='char', name='str', var='str', c_format='%s', length_arg='len + 1', copy_func='strncpy'),],
end_pipelined=True)
# Transform feedback, only for Anv
begin_end_tp('xfb',
end_pipelined=False)
# Dynamic rendering tracepoints, only for Anv
begin_end_tp('render_pass',
tp_args=[Arg(type='uint16_t', var='width', c_format='%hu'),
Arg(type='uint16_t', var='height', c_format='%hu'),
Arg(type='uint8_t', var='att_count', c_format='%hhu'),
Arg(type='uint8_t', var='msaa', c_format='%hhu'),])
# Blorp operations, Anv & Iris
begin_end_tp('blorp',
tp_args=[Arg(type='enum blorp_op', name='op', var='op', c_format='%s', to_prim_type='blorp_op_to_name({})'),
Arg(type='uint32_t', name='width', var='width', c_format='%u'),
Arg(type='uint32_t', name='height', var='height', c_format='%u'),
Arg(type='uint32_t', name='samples', var='samples', c_format='%u'),
Arg(type='enum blorp_shader_pipeline', name='blorp_pipe', var='shader_pipe', c_format='%s', to_prim_type='blorp_shader_pipeline_to_name({})'),
Arg(type='enum isl_format', name='dst_fmt', var='dst_fmt', c_format='%s', to_prim_type='isl_format_get_short_name({})'),
Arg(type='enum isl_format', name='src_fmt', var='src_fmt', c_format='%s', to_prim_type='isl_format_get_short_name({})'),
Arg(type='uint8_t', name='predicated', var='predicated', c_format='%hhu'),
])
# vkCmdWriteBufferMarker*, only for Anv
begin_end_tp('write_buffer_marker',
end_pipelined=False)
# Indirect draw generation, only for Anv
begin_end_tp('generate_draws')
begin_end_tp('generate_commands')
# vkCmdResetQuery, only for Anv
begin_end_tp('query_clear_blorp',
tp_args=[Arg(type='uint32_t', var='count', c_format='%u')])
begin_end_tp('query_clear_cs',
tp_args=[Arg(type='uint32_t', var='count', c_format='%u')],
end_pipelined=False)
# vkCmdCopyQueryResults, only for Anv
begin_end_tp('query_copy_cs',
tp_args=[Arg(type='uint32_t', var='count', c_format='%u')],
end_pipelined=False)
begin_end_tp('query_copy_shader',
tp_args=[Arg(type='uint32_t', var='count', c_format='%u')])
# Various draws/dispatch, Anv & Iris
begin_end_tp('draw',
tp_args=[Arg(type='uint32_t', var='count', c_format='%u')])
begin_end_tp('draw_multi',
tp_args=[Arg(type='uint32_t', var='count', c_format='%u'),])
begin_end_tp('draw_indexed',
tp_args=[Arg(type='uint32_t', var='count', c_format='%u'),])
begin_end_tp('draw_indexed_multi',
tp_args=[Arg(type='uint32_t', var='count', c_format='%u'),])
begin_end_tp('draw_indirect_byte_count',
tp_args=[Arg(type='uint32_t', var='instance_count', c_format='%u'),])
begin_end_tp('draw_indirect',
tp_args=[Arg(type='uint32_t', var='draw_count', c_format='%u'),])
begin_end_tp('draw_indexed_indirect',
tp_args=[Arg(type='uint32_t', var='draw_count', c_format='%u'),])
begin_end_tp('draw_indirect_count',
tp_args=[Arg(type='uint32_t', var='max_draw_count', c_format='%u'),])
begin_end_tp('draw_indexed_indirect_count',
tp_args=[Arg(type='uint32_t', var='max_draw_count', c_format='%u'),])
begin_end_tp('draw_mesh',
tp_args=[Arg(type='uint32_t', var='group_x', c_format='%u'),
Arg(type='uint32_t', var='group_y', c_format='%u'),
Arg(type='uint32_t', var='group_z', c_format='%u'),],
tp_print=['group=%ux%ux%u', '__entry->group_x', '__entry->group_y', '__entry->group_z'])
begin_end_tp('draw_mesh_indirect',
tp_args=[Arg(type='uint32_t', var='draw_count', c_format='%u'),])
begin_end_tp('draw_mesh_indirect_count',
tp_args=[Arg(type='uint32_t', var='max_draw_count', c_format='%u'),])
begin_end_tp('compute',
tp_args=[Arg(type='uint32_t', var='group_x', c_format='%u'),
Arg(type='uint32_t', var='group_y', c_format='%u'),
Arg(type='uint32_t', var='group_z', c_format='%u'),],
tp_print=['group=%ux%ux%u', '__entry->group_x', '__entry->group_y', '__entry->group_z'],
compute=True)
# Used to identify copies generated by utrace
begin_end_tp('trace_copy',
tp_args=[Arg(type='uint32_t', var='count', c_format='%u'),])
begin_end_tp('trace_copy_cb',
tp_args=[Arg(type='uint32_t', var='count', c_format='%u'),],
need_cs_param=True)
begin_end_tp('as_build')
begin_end_tp('rays',
tp_args=[Arg(type='uint32_t', var='group_x', c_format='%u'),
Arg(type='uint32_t', var='group_y', c_format='%u'),
Arg(type='uint32_t', var='group_z', c_format='%u'),],
tp_print=['group=%ux%ux%u', '__entry->group_x', '__entry->group_y', '__entry->group_z'],
compute=True)
def flag_bits(args):
bits = [Arg(type='enum intel_ds_stall_flag', name='flags', var='decode_cb(flags)', c_format='0x%x')]
for a in args:
bits.append(Arg(type='bool', name=a[1], var='__entry->flags & INTEL_DS_{0}_BIT'.format(a[0]), c_format='%u'))
return bits
def stall_args(args):
fmt = ''
exprs = []
for a in args:
fmt += '%s'
exprs.append('(__entry->flags & INTEL_DS_{0}_BIT) ? "+{1}" : ""'.format(a[0], a[1]))
fmt += ' : %s%s%s%s%s%s%s'
exprs.append('(__entry->reason1) ? __entry->reason1 : "unknown"')
exprs.append('(__entry->reason2) ? "; " : ""')
exprs.append('(__entry->reason2) ? __entry->reason2 : ""')
exprs.append('(__entry->reason3) ? "; " : ""')
exprs.append('(__entry->reason3) ? __entry->reason3 : ""')
exprs.append('(__entry->reason4) ? "; " : ""')
exprs.append('(__entry->reason4) ? __entry->reason4 : ""')
# To printout flags
# fmt += '(0x%08x)'
# exprs.append('__entry->flags')
fmt = [fmt]
fmt += exprs
return fmt
stall_flags = [['DEPTH_CACHE_FLUSH', 'depth_flush'],
['DATA_CACHE_FLUSH', 'dc_flush'],
['HDC_PIPELINE_FLUSH', 'hdc_flush'],
['RENDER_TARGET_CACHE_FLUSH', 'rt_flush'],
['TILE_CACHE_FLUSH', 'tile_flush'],
['STATE_CACHE_INVALIDATE', 'state_inval'],
['CONST_CACHE_INVALIDATE', 'const_inval'],
['VF_CACHE_INVALIDATE', 'vf_inval'],
['TEXTURE_CACHE_INVALIDATE', 'tex_inval'],
['INST_CACHE_INVALIDATE', 'ic_inval'],
['STALL_AT_SCOREBOARD', 'pb_stall'],
['DEPTH_STALL', 'depth_stall'],
['CS_STALL', 'cs_stall'],
['UNTYPED_DATAPORT_CACHE_FLUSH', 'udp_flush'],
['PSS_STALL_SYNC', 'pss_stall'],
['END_OF_PIPE', 'eop'],
['CCS_CACHE_FLUSH', 'ccs_flush']]
begin_end_tp('stall',
tp_args=[ArgStruct(type='uint32_t', var='flags'),
ArgStruct(type='intel_ds_stall_cb_t', var='decode_cb'),
ArgStruct(type='const char *', var='reason1'),
ArgStruct(type='const char *', var='reason2'),
ArgStruct(type='const char *', var='reason3'),
ArgStruct(type='const char *', var='reason4'),],
tp_struct=[Arg(type='uint32_t', name='flags', var='decode_cb(flags)', c_format='0x%x'),
Arg(type='const char *', name='reason1', var='reason1', c_format='%s'),
Arg(type='const char *', name='reason2', var='reason2', c_format='%s'),
Arg(type='const char *', name='reason3', var='reason3', c_format='%s'),
Arg(type='const char *', name='reason4', var='reason4', c_format='%s'),],
tp_print=stall_args(stall_flags),
tp_default_enabled=False,
end_pipelined=False)
def generate_code(args):
from u_trace import utrace_generate
from u_trace import utrace_generate_perfetto_utils
utrace_generate(cpath=args.utrace_src, hpath=args.utrace_hdr,
ctx_param='struct intel_ds_device *dev',
trace_toggle_name='intel_gpu_tracepoint',
trace_toggle_defaults=intel_default_tps)
utrace_generate_perfetto_utils(hpath=args.perfetto_hdr,
basename="intel_tracepoint")
def main():
parser = argparse.ArgumentParser()
parser.add_argument('-p', '--import-path', required=True)
parser.add_argument('--utrace-src', required=True)
parser.add_argument('--utrace-hdr', required=True)
parser.add_argument('--perfetto-hdr', required=True)
args = parser.parse_args()
sys.path.insert(0, args.import_path)
define_tracepoints(args)
generate_code(args)
if __name__ == '__main__':
main()
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