[Mesa-dev] [PATCH 069/140] radeonsi/gfx9: add IB parser support

Nicolai Hähnle nhaehnle at gmail.com
Tue Mar 21 08:50:29 UTC 2017


On 20.03.2017 23:43, Marek Olšák wrote:
> From: Marek Olšák <marek.olsak at amd.com>
>
> Both GFX6 and GFX9 fields are printed next to each other in parsed IBs.
>
> The Python script parses both headers like one stream and tries to merge
> all definitions.
> ---
>  src/amd/Makefile.common.am              |  4 +--
>  src/amd/common/ac_debug.c               |  1 +
>  src/amd/common/sid_tables.py            | 54 ++++++++++++++++++++++-----------
>  src/gallium/drivers/radeonsi/si_debug.c |  1 +
>  4 files changed, 41 insertions(+), 19 deletions(-)
>
> diff --git a/src/amd/Makefile.common.am b/src/amd/Makefile.common.am
> index e492fbc..595876f 100644
> --- a/src/amd/Makefile.common.am
> +++ b/src/amd/Makefile.common.am
> @@ -58,15 +58,15 @@ common_libamd_common_la_SOURCES = \
>  	$(AMD_DEBUG_FILES) \
>  	$(AMD_GENERATED_FILES)
>
>  # nir_to_llvm requires LLVM 3.9, which is only required as a minimum when
>  # radv is built.
>  if HAVE_RADEON_VULKAN
>  common_libamd_common_la_SOURCES += $(AMD_NIR_FILES)
>  endif
>  endif
>
> -common/sid_tables.h: $(srcdir)/common/sid_tables.py $(srcdir)/common/sid.h
> +common/sid_tables.h: $(srcdir)/common/sid_tables.py $(srcdir)/common/sid.h $(srcdir)/common/gfx9d.h
>  	$(AM_V_at)$(MKDIR_P) $(@D)
> -	$(AM_V_GEN) $(PYTHON2) $(srcdir)/common/sid_tables.py $(srcdir)/common/sid.h > $@
> +	$(AM_V_GEN) $(PYTHON2) $(srcdir)/common/sid_tables.py $(srcdir)/common/sid.h $(srcdir)/common/gfx9d.h > $@
>
>  BUILT_SOURCES = $(AMD_GENERATED_FILES)
> diff --git a/src/amd/common/ac_debug.c b/src/amd/common/ac_debug.c
> index 989dfda..9d051f9 100644
> --- a/src/amd/common/ac_debug.c
> +++ b/src/amd/common/ac_debug.c
> @@ -20,20 +20,21 @@
>   * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
>   * USE OR OTHER DEALINGS IN THE SOFTWARE.
>   *
>   * Authors:
>   *      Marek Olšák <maraeo at gmail.com>
>   */
>
>  #include "ac_debug.h"
>
>  #include "sid.h"
> +#include "gfx9d.h"
>  #include "sid_tables.h"
>  #include "util/u_math.h"
>  #include "util/u_memory.h"
>
>  /* Parsed IBs are difficult to read without colors. Use "less -R file" to
>   * read them, or use "aha -b -f file" to convert them to html.
>   */
>  #define COLOR_RESET	"\033[0m"
>  #define COLOR_RED	"\033[31m"
>  #define COLOR_GREEN	"\033[1;32m"
> diff --git a/src/amd/common/sid_tables.py b/src/amd/common/sid_tables.py
> index df2d7ec..429766e 100644
> --- a/src/amd/common/sid_tables.py
> +++ b/src/amd/common/sid_tables.py
> @@ -138,43 +138,66 @@ class Reg:
>          self.r_name = r_name
>          self.name = strip_prefix(r_name)
>          self.fields = []
>          self.own_fields = True
>
>
>  def strip_prefix(s):
>      '''Strip prefix in the form ._.*_, e.g. R_001234_'''
>      return s[s[2:].find('_')+3:]
>
> -
> -def parse(filename):
> +def parse(filename, regs, packets):
>      stream = open(filename)
> -    regs = []
> -    packets = []
>
>      for line in stream:
>          if not line.startswith('#define '):
>              continue
>
>          line = line[8:].strip()
>
>          if line.startswith('R_'):
> -            reg = Reg(line.split()[0])
> -            regs.append(reg)
> +            name = line.split()[0]
> +
> +            reg = None
> +            for it in regs:
> +                if it.r_name == name:
> +                    reg = it
> +                    break
> +
> +            if reg == None:
> +                reg = Reg(name)
> +                regs.append(reg)

Python has the pretty cool for-else syntax which you can use here instead:

     (skip the reg = None line)
     for it in regs:
         if it.r_name == name:
             reg = it
             break
     else:
         reg = Reg(name)
         regs.append(reg)

The else-part runs precisely when the for-loop finishes without hitting 
the break, so it's a nice idiomatic pattern for this kind of 
find-or-create code.

There is one more instance of this below.

Either way, patch is
Reviewed-by: Nicolai Hähnle <nicolai.haehnle at amd.com>

>
>          elif line.startswith('S_'):
> -            field = Field(reg, line[:line.find('(')])
> -            reg.fields.append(field)
> +            name = line[:line.find('(')]
> +
> +            field = None
> +            for it in reg.fields:
> +                if it.s_name == name:
> +                    field = it
> +                    break
> +
> +            if field == None:
> +                field = Field(reg, name)
> +                reg.fields.append(field)
>
>          elif line.startswith('V_'):
>              split = line.split()
> -            field.values.append((split[0], int(split[1], 0)))
> +            name = split[0]
> +            value = int(split[1], 0)
> +
> +            for (n,v) in field.values:
> +                if n == name:
> +                    if v != value:
> +                        sys.exit('Value mismatch: name = ' + name)
> +
> +            field.values.append((name, value))
>
>          elif line.startswith('PKT3_') and line.find('0x') != -1 and line.find('(') == -1:
>              packets.append(line.split()[0])
>
>      # Copy fields to indexed registers which have their fields only defined
>      # at register index 0.
>      # For example, copy fields from CB_COLOR0_INFO to CB_COLORn_INFO, n > 0.
>      match_number = re.compile('[0-9]+')
>      reg_dict = dict()
>
> @@ -185,26 +208,22 @@ def parse(filename):
>
>      # Assign fields
>      for reg in regs:
>          if not len(reg.fields):
>              reg0 = reg_dict.get(match_number.sub('0', reg.name))
>              if reg0 != None:
>                  reg.fields = reg0.fields
>                  reg.fields_owner = reg0
>                  reg.own_fields = False
>
> -    return (regs, packets)
>
> -
> -def write_tables(tables):
> -    regs = tables[0]
> -    packets = tables[1]
> +def write_tables(regs, packets):
>
>      strings = StringTable()
>      strings_offsets = IntTable("int")
>
>      print '/* This file is autogenerated by sid_tables.py from sid.h. Do not edit directly. */'
>      print
>      print CopyRight.strip()
>      print '''
>  #ifndef SID_TABLES_H
>  #define SID_TABLES_H
> @@ -275,20 +294,21 @@ struct si_packet3 {
>
>      print
>
>      strings_offsets.emit(sys.stdout, "sid_strings_offsets")
>
>      print
>      print '#endif'
>
>
>  def main():
> -    tables = []
> +    regs = []
> +    packets = []
>      for arg in sys.argv[1:]:
> -        tables.extend(parse(arg))
> -    write_tables(tables)
> +        parse(arg, regs, packets)
> +    write_tables(regs, packets)
>
>
>  if __name__ == '__main__':
>      main()
>
>  # kate: space-indent on; indent-width 4; replace-tabs on;
> diff --git a/src/gallium/drivers/radeonsi/si_debug.c b/src/gallium/drivers/radeonsi/si_debug.c
> index 1092aa2..db310b7 100644
> --- a/src/gallium/drivers/radeonsi/si_debug.c
> +++ b/src/gallium/drivers/radeonsi/si_debug.c
> @@ -19,20 +19,21 @@
>   * 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:
>   *      Marek Olšák <maraeo at gmail.com>
>   */
>
>  #include "si_pipe.h"
>  #include "sid.h"
> +#include "gfx9d.h"
>  #include "sid_tables.h"
>  #include "ddebug/dd_util.h"
>  #include "util/u_memory.h"
>  #include "ac_debug.h"
>
>  DEBUG_GET_ONCE_OPTION(replace_shaders, "RADEON_REPLACE_SHADERS", NULL)
>
>  static void si_dump_shader(struct si_screen *sscreen,
>  			   struct si_shader_ctx_state *state, FILE *f)
>  {
>



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