[PATCH libdrm v2 1/1] amdgpu: move asic id table to a separate file

[Grazvydas Ignotas]

On Fri, May 12, 2017 at 12:19 AM, Samuel Li <Samuel.Li at amd.com> wrote:
> From: Xiaojie Yuan <Xiaojie.Yuan at amd.com>
>
> v2: fix an off by one error and leading white spaces
>
> Change-Id: I12216da14910f5e2b0970bc1fafc2a20b0ef1ba9
> Reviewed-by: Junwei Zhang <Jerry.Zhang at amd.com>
> Signed-off-by: Samuel Li <Samuel.Li at amd.com>
> ---
>  amdgpu/Makefile.am       |   2 +
>  amdgpu/Makefile.sources  |   2 +-
>  amdgpu/amdgpu_asic_id.c  | 198 +++++++++++++++++++++++++++++++++++++++++++++++
>  amdgpu/amdgpu_asic_id.h  | 165 ---------------------------------------
>  amdgpu/amdgpu_device.c   |  28 +++++--
>  amdgpu/amdgpu_internal.h |  10 +++
>  6 files changed, 232 insertions(+), 173 deletions(-)
>  create mode 100644 amdgpu/amdgpu_asic_id.c
>  delete mode 100644 amdgpu/amdgpu_asic_id.h
>
> diff --git a/amdgpu/Makefile.am b/amdgpu/Makefile.am
> index cf7bc1b..ecf9e82 100644
> --- a/amdgpu/Makefile.am
> +++ b/amdgpu/Makefile.am
> @@ -30,6 +30,8 @@ AM_CFLAGS = \
>         $(PTHREADSTUBS_CFLAGS) \
>         -I$(top_srcdir)/include/drm
>
> +AM_CPPFLAGS = -DAMDGPU_ASIC_ID_TABLE=\"${datadir}/libdrm/amdgpu.ids\"

If you add this here, you should add the ids file itself and make
libdrm install it too...

> +
>  libdrm_amdgpu_la_LTLIBRARIES = libdrm_amdgpu.la
>  libdrm_amdgpu_ladir = $(libdir)
>  libdrm_amdgpu_la_LDFLAGS = -version-number 1:0:0 -no-undefined
> diff --git a/amdgpu/Makefile.sources b/amdgpu/Makefile.sources
> index 487b9e0..bc3abaa 100644
> --- a/amdgpu/Makefile.sources
> +++ b/amdgpu/Makefile.sources
> @@ -1,5 +1,5 @@
>  LIBDRM_AMDGPU_FILES := \
> -       amdgpu_asic_id.h \
> +       amdgpu_asic_id.c \
>         amdgpu_bo.c \
>         amdgpu_cs.c \
>         amdgpu_device.c \
> diff --git a/amdgpu/amdgpu_asic_id.c b/amdgpu/amdgpu_asic_id.c
> new file mode 100644
> index 0000000..067f38c
> --- /dev/null
> +++ b/amdgpu/amdgpu_asic_id.c
> @@ -0,0 +1,198 @@
> +/*
> + * Copyright © 2017 Advanced Micro Devices, Inc.
> + * All Rights Reserved.
> + *
> + * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
> + *
> + */
> +
> +#ifdef HAVE_CONFIG_H
> +#include "config.h"
> +#endif
> +
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <stdint.h>
> +#include <string.h>
> +#include <unistd.h>
> +#include <errno.h>
> +
> +#include "amdgpu_drm.h"
> +#include "amdgpu_internal.h"
> +
> +static int parse_one_line(const char *line, struct amdgpu_asic_id *id)
> +{
> +       char *buf;
> +       char *s_did;
> +       char *s_rid;
> +       char *s_name;
> +       char *endptr;
> +       int r = 0;
> +
> +       buf = strdup(line);
> +       if (!buf)
> +               return -ENOMEM;
> +
> +       /* ignore empty line and commented line */
> +       if (strlen(line) == 0 || line[0] == '#') {
> +               r = -EAGAIN;
> +               goto out;
> +       }
> +
> +       /* device id */
> +       s_did = strtok(buf, ",");

You can't use strtok() in a library. Any other thread may call
strtok() anytime too and screw you up.

> +       if (!s_did) {
> +               r = -EINVAL;
> +               goto out;
> +       }
> +
> +       id->did = strtol(s_did, &endptr, 16);
> +       if (*endptr) {
> +               r = -EINVAL;
> +               goto out;
> +       }
> +
> +       /* revision id */
> +       s_rid = strtok(NULL, ",");
> +       if (!s_rid) {
> +               r = -EINVAL;
> +               goto out;
> +       }
> +
> +       id->rid = strtol(s_rid, &endptr, 16);
> +       if (*endptr) {
> +               r = -EINVAL;
> +               goto out;
> +       }
> +
> +       /* marketing name */
> +       s_name = strtok(NULL, ",");
> +       if (!s_name) {
> +               r = -EINVAL;
> +               goto out;
> +       }
> +
> +       id->marketing_name = strdup(s_name);
> +       if (id->marketing_name == NULL) {
> +               r = -EINVAL;
> +               goto out;
> +       }
> +
> +out:
> +       free(buf);
> +
> +       return r;
> +}
> +
> +int amdgpu_parse_asic_ids(struct amdgpu_asic_id **p_asic_id_table)
> +{
> +       struct amdgpu_asic_id *asic_id_table;
> +       struct amdgpu_asic_id *id;
> +       FILE *fp;
> +       char *line = NULL;
> +       size_t len;

The manpage says len must be 0 before the first getline() call.

> +       ssize_t n;
> +       int line_num = 1;
> +       size_t table_size = 0;
> +       size_t table_max_size = 256;
> +       int r = 0;
> +
> +       fp = fopen(AMDGPU_ASIC_ID_TABLE, "r");
> +       if (!fp) {
> +               fprintf(stderr, "%s: %s\n", AMDGPU_ASIC_ID_TABLE,
> +                               strerror(errno));
> +               return -EINVAL;
> +       }
> +
> +       asic_id_table = calloc(table_max_size, sizeof(struct amdgpu_asic_id));
> +       if (!asic_id_table) {
> +               r = -ENOMEM;
> +               goto close;
> +       }
> +
> +       /* 1st line is file version */
> +       if ((n = getline(&line, &len, fp)) != -1) {
> +               /* trim trailing newline */
> +               if (line[n - 1] == '\n')
> +                       line[n - 1] = '\0';
> +               printf("%s version: %s\n", AMDGPU_ASIC_ID_TABLE, line);

debug leftover?

Gražvydas