![Greg Kroah-Hartman](/assets/img/avatar_default.png)
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
587 lines
16 KiB
C
587 lines
16 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright IBM Corp. 2001, 2009
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* Author(s): Ulrich Weigand <Ulrich.Weigand@de.ibm.com>,
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* Martin Schwidefsky <schwidefsky@de.ibm.com>,
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*/
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#include <linux/debugfs.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/export.h>
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#include <linux/slab.h>
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#include <asm/ebcdic.h>
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#include <asm/debug.h>
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#include <asm/sysinfo.h>
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#include <asm/cpcmd.h>
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#include <asm/topology.h>
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#include <asm/fpu/api.h>
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int topology_max_mnest;
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static inline int __stsi(void *sysinfo, int fc, int sel1, int sel2, int *lvl)
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{
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register int r0 asm("0") = (fc << 28) | sel1;
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register int r1 asm("1") = sel2;
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int rc = 0;
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asm volatile(
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" stsi 0(%3)\n"
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"0: jz 2f\n"
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"1: lhi %1,%4\n"
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"2:\n"
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EX_TABLE(0b, 1b)
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: "+d" (r0), "+d" (rc)
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: "d" (r1), "a" (sysinfo), "K" (-EOPNOTSUPP)
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: "cc", "memory");
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*lvl = ((unsigned int) r0) >> 28;
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return rc;
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}
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/*
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* stsi - store system information
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*
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* Returns the current configuration level if function code 0 was specified.
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* Otherwise returns 0 on success or a negative value on error.
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*/
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int stsi(void *sysinfo, int fc, int sel1, int sel2)
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{
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int lvl, rc;
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rc = __stsi(sysinfo, fc, sel1, sel2, &lvl);
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if (rc)
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return rc;
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return fc ? 0 : lvl;
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}
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EXPORT_SYMBOL(stsi);
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static bool convert_ext_name(unsigned char encoding, char *name, size_t len)
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{
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switch (encoding) {
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case 1: /* EBCDIC */
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EBCASC(name, len);
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break;
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case 2: /* UTF-8 */
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break;
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default:
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return false;
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}
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return true;
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}
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static void stsi_1_1_1(struct seq_file *m, struct sysinfo_1_1_1 *info)
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{
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int i;
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if (stsi(info, 1, 1, 1))
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return;
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EBCASC(info->manufacturer, sizeof(info->manufacturer));
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EBCASC(info->type, sizeof(info->type));
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EBCASC(info->model, sizeof(info->model));
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EBCASC(info->sequence, sizeof(info->sequence));
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EBCASC(info->plant, sizeof(info->plant));
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EBCASC(info->model_capacity, sizeof(info->model_capacity));
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EBCASC(info->model_perm_cap, sizeof(info->model_perm_cap));
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EBCASC(info->model_temp_cap, sizeof(info->model_temp_cap));
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seq_printf(m, "Manufacturer: %-16.16s\n", info->manufacturer);
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seq_printf(m, "Type: %-4.4s\n", info->type);
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/*
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* Sigh: the model field has been renamed with System z9
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* to model_capacity and a new model field has been added
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* after the plant field. To avoid confusing older programs
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* the "Model:" prints "model_capacity model" or just
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* "model_capacity" if the model string is empty .
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*/
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seq_printf(m, "Model: %-16.16s", info->model_capacity);
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if (info->model[0] != '\0')
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seq_printf(m, " %-16.16s", info->model);
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seq_putc(m, '\n');
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seq_printf(m, "Sequence Code: %-16.16s\n", info->sequence);
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seq_printf(m, "Plant: %-4.4s\n", info->plant);
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seq_printf(m, "Model Capacity: %-16.16s %08u\n",
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info->model_capacity, info->model_cap_rating);
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if (info->model_perm_cap_rating)
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seq_printf(m, "Model Perm. Capacity: %-16.16s %08u\n",
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info->model_perm_cap,
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info->model_perm_cap_rating);
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if (info->model_temp_cap_rating)
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seq_printf(m, "Model Temp. Capacity: %-16.16s %08u\n",
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info->model_temp_cap,
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info->model_temp_cap_rating);
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if (info->ncr)
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seq_printf(m, "Nominal Cap. Rating: %08u\n", info->ncr);
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if (info->npr)
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seq_printf(m, "Nominal Perm. Rating: %08u\n", info->npr);
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if (info->ntr)
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seq_printf(m, "Nominal Temp. Rating: %08u\n", info->ntr);
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if (info->cai) {
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seq_printf(m, "Capacity Adj. Ind.: %d\n", info->cai);
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seq_printf(m, "Capacity Ch. Reason: %d\n", info->ccr);
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seq_printf(m, "Capacity Transient: %d\n", info->t);
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}
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if (info->p) {
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for (i = 1; i <= ARRAY_SIZE(info->typepct); i++) {
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seq_printf(m, "Type %d Percentage: %d\n",
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i, info->typepct[i - 1]);
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}
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}
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}
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static void stsi_15_1_x(struct seq_file *m, struct sysinfo_15_1_x *info)
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{
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int i;
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seq_putc(m, '\n');
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if (!MACHINE_HAS_TOPOLOGY)
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return;
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if (stsi(info, 15, 1, topology_max_mnest))
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return;
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seq_printf(m, "CPU Topology HW: ");
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for (i = 0; i < TOPOLOGY_NR_MAG; i++)
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seq_printf(m, " %d", info->mag[i]);
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seq_putc(m, '\n');
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#ifdef CONFIG_SCHED_TOPOLOGY
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store_topology(info);
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seq_printf(m, "CPU Topology SW: ");
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for (i = 0; i < TOPOLOGY_NR_MAG; i++)
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seq_printf(m, " %d", info->mag[i]);
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seq_putc(m, '\n');
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#endif
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}
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static void stsi_1_2_2(struct seq_file *m, struct sysinfo_1_2_2 *info)
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{
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struct sysinfo_1_2_2_extension *ext;
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int i;
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if (stsi(info, 1, 2, 2))
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return;
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ext = (struct sysinfo_1_2_2_extension *)
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((unsigned long) info + info->acc_offset);
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seq_printf(m, "CPUs Total: %d\n", info->cpus_total);
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seq_printf(m, "CPUs Configured: %d\n", info->cpus_configured);
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seq_printf(m, "CPUs Standby: %d\n", info->cpus_standby);
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seq_printf(m, "CPUs Reserved: %d\n", info->cpus_reserved);
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if (info->mt_installed) {
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seq_printf(m, "CPUs G-MTID: %d\n", info->mt_gtid);
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seq_printf(m, "CPUs S-MTID: %d\n", info->mt_stid);
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}
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/*
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* Sigh 2. According to the specification the alternate
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* capability field is a 32 bit floating point number
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* if the higher order 8 bits are not zero. Printing
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* a floating point number in the kernel is a no-no,
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* always print the number as 32 bit unsigned integer.
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* The user-space needs to know about the strange
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* encoding of the alternate cpu capability.
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*/
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seq_printf(m, "Capability: %u", info->capability);
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if (info->format == 1)
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seq_printf(m, " %u", ext->alt_capability);
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seq_putc(m, '\n');
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if (info->nominal_cap)
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seq_printf(m, "Nominal Capability: %d\n", info->nominal_cap);
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if (info->secondary_cap)
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seq_printf(m, "Secondary Capability: %d\n", info->secondary_cap);
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for (i = 2; i <= info->cpus_total; i++) {
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seq_printf(m, "Adjustment %02d-way: %u",
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i, info->adjustment[i-2]);
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if (info->format == 1)
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seq_printf(m, " %u", ext->alt_adjustment[i-2]);
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seq_putc(m, '\n');
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}
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}
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static void stsi_2_2_2(struct seq_file *m, struct sysinfo_2_2_2 *info)
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{
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if (stsi(info, 2, 2, 2))
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return;
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EBCASC(info->name, sizeof(info->name));
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seq_putc(m, '\n');
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seq_printf(m, "LPAR Number: %d\n", info->lpar_number);
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seq_printf(m, "LPAR Characteristics: ");
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if (info->characteristics & LPAR_CHAR_DEDICATED)
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seq_printf(m, "Dedicated ");
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if (info->characteristics & LPAR_CHAR_SHARED)
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seq_printf(m, "Shared ");
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if (info->characteristics & LPAR_CHAR_LIMITED)
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seq_printf(m, "Limited ");
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seq_putc(m, '\n');
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seq_printf(m, "LPAR Name: %-8.8s\n", info->name);
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seq_printf(m, "LPAR Adjustment: %d\n", info->caf);
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seq_printf(m, "LPAR CPUs Total: %d\n", info->cpus_total);
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seq_printf(m, "LPAR CPUs Configured: %d\n", info->cpus_configured);
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seq_printf(m, "LPAR CPUs Standby: %d\n", info->cpus_standby);
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seq_printf(m, "LPAR CPUs Reserved: %d\n", info->cpus_reserved);
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seq_printf(m, "LPAR CPUs Dedicated: %d\n", info->cpus_dedicated);
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seq_printf(m, "LPAR CPUs Shared: %d\n", info->cpus_shared);
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if (info->mt_installed) {
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seq_printf(m, "LPAR CPUs G-MTID: %d\n", info->mt_gtid);
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seq_printf(m, "LPAR CPUs S-MTID: %d\n", info->mt_stid);
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seq_printf(m, "LPAR CPUs PS-MTID: %d\n", info->mt_psmtid);
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}
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if (convert_ext_name(info->vsne, info->ext_name, sizeof(info->ext_name))) {
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seq_printf(m, "LPAR Extended Name: %-.256s\n", info->ext_name);
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seq_printf(m, "LPAR UUID: %pUb\n", &info->uuid);
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}
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}
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static void print_ext_name(struct seq_file *m, int lvl,
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struct sysinfo_3_2_2 *info)
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{
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size_t len = sizeof(info->ext_names[lvl]);
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if (!convert_ext_name(info->vm[lvl].evmne, info->ext_names[lvl], len))
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return;
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seq_printf(m, "VM%02d Extended Name: %-.256s\n", lvl,
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info->ext_names[lvl]);
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}
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static void print_uuid(struct seq_file *m, int i, struct sysinfo_3_2_2 *info)
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{
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if (uuid_is_null(&info->vm[i].uuid))
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return;
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seq_printf(m, "VM%02d UUID: %pUb\n", i, &info->vm[i].uuid);
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}
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static void stsi_3_2_2(struct seq_file *m, struct sysinfo_3_2_2 *info)
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{
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int i;
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if (stsi(info, 3, 2, 2))
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return;
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for (i = 0; i < info->count; i++) {
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EBCASC(info->vm[i].name, sizeof(info->vm[i].name));
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EBCASC(info->vm[i].cpi, sizeof(info->vm[i].cpi));
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seq_putc(m, '\n');
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seq_printf(m, "VM%02d Name: %-8.8s\n", i, info->vm[i].name);
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seq_printf(m, "VM%02d Control Program: %-16.16s\n", i, info->vm[i].cpi);
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seq_printf(m, "VM%02d Adjustment: %d\n", i, info->vm[i].caf);
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seq_printf(m, "VM%02d CPUs Total: %d\n", i, info->vm[i].cpus_total);
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seq_printf(m, "VM%02d CPUs Configured: %d\n", i, info->vm[i].cpus_configured);
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seq_printf(m, "VM%02d CPUs Standby: %d\n", i, info->vm[i].cpus_standby);
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seq_printf(m, "VM%02d CPUs Reserved: %d\n", i, info->vm[i].cpus_reserved);
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print_ext_name(m, i, info);
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print_uuid(m, i, info);
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}
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}
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static int sysinfo_show(struct seq_file *m, void *v)
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{
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void *info = (void *)get_zeroed_page(GFP_KERNEL);
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int level;
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if (!info)
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return 0;
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level = stsi(NULL, 0, 0, 0);
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if (level >= 1)
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stsi_1_1_1(m, info);
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if (level >= 1)
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stsi_15_1_x(m, info);
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if (level >= 1)
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stsi_1_2_2(m, info);
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if (level >= 2)
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stsi_2_2_2(m, info);
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if (level >= 3)
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stsi_3_2_2(m, info);
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free_page((unsigned long)info);
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return 0;
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}
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static int sysinfo_open(struct inode *inode, struct file *file)
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{
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return single_open(file, sysinfo_show, NULL);
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}
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static const struct file_operations sysinfo_fops = {
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.open = sysinfo_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static int __init sysinfo_create_proc(void)
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{
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proc_create("sysinfo", 0444, NULL, &sysinfo_fops);
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return 0;
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}
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device_initcall(sysinfo_create_proc);
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/*
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* Service levels interface.
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*/
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static DECLARE_RWSEM(service_level_sem);
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static LIST_HEAD(service_level_list);
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int register_service_level(struct service_level *slr)
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{
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struct service_level *ptr;
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down_write(&service_level_sem);
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list_for_each_entry(ptr, &service_level_list, list)
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if (ptr == slr) {
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up_write(&service_level_sem);
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return -EEXIST;
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}
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list_add_tail(&slr->list, &service_level_list);
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up_write(&service_level_sem);
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return 0;
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}
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EXPORT_SYMBOL(register_service_level);
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int unregister_service_level(struct service_level *slr)
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{
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struct service_level *ptr, *next;
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int rc = -ENOENT;
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down_write(&service_level_sem);
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list_for_each_entry_safe(ptr, next, &service_level_list, list) {
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if (ptr != slr)
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continue;
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list_del(&ptr->list);
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rc = 0;
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break;
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}
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up_write(&service_level_sem);
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return rc;
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}
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EXPORT_SYMBOL(unregister_service_level);
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static void *service_level_start(struct seq_file *m, loff_t *pos)
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{
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down_read(&service_level_sem);
|
|
return seq_list_start(&service_level_list, *pos);
|
|
}
|
|
|
|
static void *service_level_next(struct seq_file *m, void *p, loff_t *pos)
|
|
{
|
|
return seq_list_next(p, &service_level_list, pos);
|
|
}
|
|
|
|
static void service_level_stop(struct seq_file *m, void *p)
|
|
{
|
|
up_read(&service_level_sem);
|
|
}
|
|
|
|
static int service_level_show(struct seq_file *m, void *p)
|
|
{
|
|
struct service_level *slr;
|
|
|
|
slr = list_entry(p, struct service_level, list);
|
|
slr->seq_print(m, slr);
|
|
return 0;
|
|
}
|
|
|
|
static const struct seq_operations service_level_seq_ops = {
|
|
.start = service_level_start,
|
|
.next = service_level_next,
|
|
.stop = service_level_stop,
|
|
.show = service_level_show
|
|
};
|
|
|
|
static int service_level_open(struct inode *inode, struct file *file)
|
|
{
|
|
return seq_open(file, &service_level_seq_ops);
|
|
}
|
|
|
|
static const struct file_operations service_level_ops = {
|
|
.open = service_level_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = seq_release
|
|
};
|
|
|
|
static void service_level_vm_print(struct seq_file *m,
|
|
struct service_level *slr)
|
|
{
|
|
char *query_buffer, *str;
|
|
|
|
query_buffer = kmalloc(1024, GFP_KERNEL | GFP_DMA);
|
|
if (!query_buffer)
|
|
return;
|
|
cpcmd("QUERY CPLEVEL", query_buffer, 1024, NULL);
|
|
str = strchr(query_buffer, '\n');
|
|
if (str)
|
|
*str = 0;
|
|
seq_printf(m, "VM: %s\n", query_buffer);
|
|
kfree(query_buffer);
|
|
}
|
|
|
|
static struct service_level service_level_vm = {
|
|
.seq_print = service_level_vm_print
|
|
};
|
|
|
|
static __init int create_proc_service_level(void)
|
|
{
|
|
proc_create("service_levels", 0, NULL, &service_level_ops);
|
|
if (MACHINE_IS_VM)
|
|
register_service_level(&service_level_vm);
|
|
return 0;
|
|
}
|
|
subsys_initcall(create_proc_service_level);
|
|
|
|
/*
|
|
* CPU capability might have changed. Therefore recalculate loops_per_jiffy.
|
|
*/
|
|
void s390_adjust_jiffies(void)
|
|
{
|
|
struct sysinfo_1_2_2 *info;
|
|
unsigned long capability;
|
|
struct kernel_fpu fpu;
|
|
|
|
info = (void *) get_zeroed_page(GFP_KERNEL);
|
|
if (!info)
|
|
return;
|
|
|
|
if (stsi(info, 1, 2, 2) == 0) {
|
|
/*
|
|
* Major sigh. The cpu capability encoding is "special".
|
|
* If the first 9 bits of info->capability are 0 then it
|
|
* is a 32 bit unsigned integer in the range 0 .. 2^23.
|
|
* If the first 9 bits are != 0 then it is a 32 bit float.
|
|
* In addition a lower value indicates a proportionally
|
|
* higher cpu capacity. Bogomips are the other way round.
|
|
* To get to a halfway suitable number we divide 1e7
|
|
* by the cpu capability number. Yes, that means a floating
|
|
* point division ..
|
|
*/
|
|
kernel_fpu_begin(&fpu, KERNEL_FPR);
|
|
asm volatile(
|
|
" sfpc %3\n"
|
|
" l %0,%1\n"
|
|
" tmlh %0,0xff80\n"
|
|
" jnz 0f\n"
|
|
" cefbr %%f2,%0\n"
|
|
" j 1f\n"
|
|
"0: le %%f2,%1\n"
|
|
"1: cefbr %%f0,%2\n"
|
|
" debr %%f0,%%f2\n"
|
|
" cgebr %0,5,%%f0\n"
|
|
: "=&d" (capability)
|
|
: "Q" (info->capability), "d" (10000000), "d" (0)
|
|
: "cc"
|
|
);
|
|
kernel_fpu_end(&fpu, KERNEL_FPR);
|
|
} else
|
|
/*
|
|
* Really old machine without stsi block for basic
|
|
* cpu information. Report 42.0 bogomips.
|
|
*/
|
|
capability = 42;
|
|
loops_per_jiffy = capability * (500000/HZ);
|
|
free_page((unsigned long) info);
|
|
}
|
|
|
|
/*
|
|
* calibrate the delay loop
|
|
*/
|
|
void calibrate_delay(void)
|
|
{
|
|
s390_adjust_jiffies();
|
|
/* Print the good old Bogomips line .. */
|
|
printk(KERN_DEBUG "Calibrating delay loop (skipped)... "
|
|
"%lu.%02lu BogoMIPS preset\n", loops_per_jiffy/(500000/HZ),
|
|
(loops_per_jiffy/(5000/HZ)) % 100);
|
|
}
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
|
|
#define STSI_FILE(fc, s1, s2) \
|
|
static int stsi_open_##fc##_##s1##_##s2(struct inode *inode, struct file *file)\
|
|
{ \
|
|
file->private_data = (void *) get_zeroed_page(GFP_KERNEL); \
|
|
if (!file->private_data) \
|
|
return -ENOMEM; \
|
|
if (stsi(file->private_data, fc, s1, s2)) { \
|
|
free_page((unsigned long)file->private_data); \
|
|
file->private_data = NULL; \
|
|
return -EACCES; \
|
|
} \
|
|
return nonseekable_open(inode, file); \
|
|
} \
|
|
\
|
|
static const struct file_operations stsi_##fc##_##s1##_##s2##_fs_ops = { \
|
|
.open = stsi_open_##fc##_##s1##_##s2, \
|
|
.release = stsi_release, \
|
|
.read = stsi_read, \
|
|
.llseek = no_llseek, \
|
|
};
|
|
|
|
static int stsi_release(struct inode *inode, struct file *file)
|
|
{
|
|
free_page((unsigned long)file->private_data);
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t stsi_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
|
|
{
|
|
return simple_read_from_buffer(buf, size, ppos, file->private_data, PAGE_SIZE);
|
|
}
|
|
|
|
STSI_FILE( 1, 1, 1);
|
|
STSI_FILE( 1, 2, 1);
|
|
STSI_FILE( 1, 2, 2);
|
|
STSI_FILE( 2, 2, 1);
|
|
STSI_FILE( 2, 2, 2);
|
|
STSI_FILE( 3, 2, 2);
|
|
STSI_FILE(15, 1, 2);
|
|
STSI_FILE(15, 1, 3);
|
|
STSI_FILE(15, 1, 4);
|
|
STSI_FILE(15, 1, 5);
|
|
STSI_FILE(15, 1, 6);
|
|
|
|
struct stsi_file {
|
|
const struct file_operations *fops;
|
|
char *name;
|
|
};
|
|
|
|
static struct stsi_file stsi_file[] __initdata = {
|
|
{.fops = &stsi_1_1_1_fs_ops, .name = "1_1_1"},
|
|
{.fops = &stsi_1_2_1_fs_ops, .name = "1_2_1"},
|
|
{.fops = &stsi_1_2_2_fs_ops, .name = "1_2_2"},
|
|
{.fops = &stsi_2_2_1_fs_ops, .name = "2_2_1"},
|
|
{.fops = &stsi_2_2_2_fs_ops, .name = "2_2_2"},
|
|
{.fops = &stsi_3_2_2_fs_ops, .name = "3_2_2"},
|
|
{.fops = &stsi_15_1_2_fs_ops, .name = "15_1_2"},
|
|
{.fops = &stsi_15_1_3_fs_ops, .name = "15_1_3"},
|
|
{.fops = &stsi_15_1_4_fs_ops, .name = "15_1_4"},
|
|
{.fops = &stsi_15_1_5_fs_ops, .name = "15_1_5"},
|
|
{.fops = &stsi_15_1_6_fs_ops, .name = "15_1_6"},
|
|
};
|
|
|
|
static u8 stsi_0_0_0;
|
|
|
|
static __init int stsi_init_debugfs(void)
|
|
{
|
|
struct dentry *stsi_root;
|
|
struct stsi_file *sf;
|
|
int lvl, i;
|
|
|
|
stsi_root = debugfs_create_dir("stsi", arch_debugfs_dir);
|
|
if (IS_ERR_OR_NULL(stsi_root))
|
|
return 0;
|
|
lvl = stsi(NULL, 0, 0, 0);
|
|
if (lvl > 0)
|
|
stsi_0_0_0 = lvl;
|
|
debugfs_create_u8("0_0_0", 0400, stsi_root, &stsi_0_0_0);
|
|
for (i = 0; i < ARRAY_SIZE(stsi_file); i++) {
|
|
sf = &stsi_file[i];
|
|
debugfs_create_file(sf->name, 0400, stsi_root, NULL, sf->fops);
|
|
}
|
|
if (IS_ENABLED(CONFIG_SCHED_TOPOLOGY) && MACHINE_HAS_TOPOLOGY) {
|
|
char link_to[10];
|
|
|
|
sprintf(link_to, "15_1_%d", topology_mnest_limit());
|
|
debugfs_create_symlink("topology", stsi_root, link_to);
|
|
}
|
|
return 0;
|
|
}
|
|
device_initcall(stsi_init_debugfs);
|
|
|
|
#endif /* CONFIG_DEBUG_FS */
|