mirror of https://gitee.com/openkylin/linux.git
Merge branch 'FW_BUG' into test
This commit is contained in:
Len Brown
commit
6b3c4f8b9c
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@ -45,7 +45,6 @@
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#endif
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#define PFX "powernow-k8: "
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#define BFX PFX "BIOS error: "
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#define VERSION "version 2.20.00"
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#include "powernow-k8.h"
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@ -536,35 +535,40 @@ static int check_pst_table(struct powernow_k8_data *data, struct pst_s *pst, u8
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for (j = 0; j < data->numps; j++) {
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if (pst[j].vid > LEAST_VID) {
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printk(KERN_ERR PFX "vid %d invalid : 0x%x\n", j, pst[j].vid);
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printk(KERN_ERR FW_BUG PFX "vid %d invalid : 0x%x\n",
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j, pst[j].vid);
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return -EINVAL;
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}
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if (pst[j].vid < data->rvo) { /* vid + rvo >= 0 */
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printk(KERN_ERR BFX "0 vid exceeded with pstate %d\n", j);
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printk(KERN_ERR FW_BUG PFX "0 vid exceeded with pstate"
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" %d\n", j);
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return -ENODEV;
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}
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if (pst[j].vid < maxvid + data->rvo) { /* vid + rvo >= maxvid */
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printk(KERN_ERR BFX "maxvid exceeded with pstate %d\n", j);
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printk(KERN_ERR FW_BUG PFX "maxvid exceeded with pstate"
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" %d\n", j);
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return -ENODEV;
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}
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if (pst[j].fid > MAX_FID) {
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printk(KERN_ERR BFX "maxfid exceeded with pstate %d\n", j);
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printk(KERN_ERR FW_BUG PFX "maxfid exceeded with pstate"
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" %d\n", j);
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return -ENODEV;
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}
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if (j && (pst[j].fid < HI_FID_TABLE_BOTTOM)) {
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/* Only first fid is allowed to be in "low" range */
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printk(KERN_ERR BFX "two low fids - %d : 0x%x\n", j, pst[j].fid);
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printk(KERN_ERR FW_BUG PFX "two low fids - %d : "
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"0x%x\n", j, pst[j].fid);
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return -EINVAL;
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}
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if (pst[j].fid < lastfid)
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lastfid = pst[j].fid;
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}
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if (lastfid & 1) {
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printk(KERN_ERR BFX "lastfid invalid\n");
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printk(KERN_ERR FW_BUG PFX "lastfid invalid\n");
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return -EINVAL;
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}
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if (lastfid > LO_FID_TABLE_TOP)
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printk(KERN_INFO BFX "first fid not from lo freq table\n");
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printk(KERN_INFO FW_BUG PFX "first fid not from lo freq table\n");
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return 0;
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}
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@ -672,13 +676,13 @@ static int find_psb_table(struct powernow_k8_data *data)
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dprintk("table vers: 0x%x\n", psb->tableversion);
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if (psb->tableversion != PSB_VERSION_1_4) {
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printk(KERN_ERR BFX "PSB table is not v1.4\n");
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printk(KERN_ERR FW_BUG PFX "PSB table is not v1.4\n");
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return -ENODEV;
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}
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dprintk("flags: 0x%x\n", psb->flags1);
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if (psb->flags1) {
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printk(KERN_ERR BFX "unknown flags\n");
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printk(KERN_ERR FW_BUG PFX "unknown flags\n");
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return -ENODEV;
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}
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@ -705,7 +709,7 @@ static int find_psb_table(struct powernow_k8_data *data)
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}
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}
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if (cpst != 1) {
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printk(KERN_ERR BFX "numpst must be 1\n");
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printk(KERN_ERR FW_BUG PFX "numpst must be 1\n");
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return -ENODEV;
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}
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@ -1130,17 +1134,19 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
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"ACPI Processor module before starting this "
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"driver.\n");
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#else
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printk(KERN_ERR PFX "Your BIOS does not provide ACPI "
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"_PSS objects in a way that Linux understands. "
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"Please report this to the Linux ACPI maintainers"
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" and complain to your BIOS vendor.\n");
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printk(KERN_ERR FW_BUG PFX "Your BIOS does not provide"
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" ACPI _PSS objects in a way that Linux "
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"understands. Please report this to the Linux "
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"ACPI maintainers and complain to your BIOS "
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"vendor.\n");
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#endif
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kfree(data);
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return -ENODEV;
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}
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if (pol->cpu != 0) {
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printk(KERN_ERR PFX "No ACPI _PSS objects for CPU other than "
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"CPU0. Complain to your BIOS vendor.\n");
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printk(KERN_ERR FW_BUG PFX "No ACPI _PSS objects for "
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"CPU other than CPU0. Complain to your BIOS "
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"vendor.\n");
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kfree(data);
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return -ENODEV;
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}
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@ -1193,7 +1199,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
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/* min/max the cpu is capable of */
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if (cpufreq_frequency_table_cpuinfo(pol, data->powernow_table)) {
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printk(KERN_ERR PFX "invalid powernow_table\n");
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printk(KERN_ERR FW_BUG PFX "invalid powernow_table\n");
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powernow_k8_cpu_exit_acpi(data);
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kfree(data->powernow_table);
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kfree(data);
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@ -38,6 +38,7 @@
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#include <asm/uaccess.h>
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#endif
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#include <asm/cpufeature.h>
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#include <acpi/acpi_bus.h>
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#include <acpi/processor.h>
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@ -334,7 +335,6 @@ static int acpi_processor_get_performance_info(struct acpi_processor *pr)
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acpi_status status = AE_OK;
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acpi_handle handle = NULL;
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if (!pr || !pr->performance || !pr->handle)
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return -EINVAL;
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@ -347,13 +347,25 @@ static int acpi_processor_get_performance_info(struct acpi_processor *pr)
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result = acpi_processor_get_performance_control(pr);
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if (result)
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return result;
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goto update_bios;
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result = acpi_processor_get_performance_states(pr);
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if (result)
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return result;
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goto update_bios;
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return 0;
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/*
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* Having _PPC but missing frequencies (_PSS, _PCT) is a very good hint that
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* the BIOS is older than the CPU and does not know its frequencies
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*/
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update_bios:
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if (ACPI_SUCCESS(acpi_get_handle(pr->handle, "_PPC", &handle))){
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if(boot_cpu_has(X86_FEATURE_EST))
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printk(KERN_WARNING FW_BUG "BIOS needs update for CPU "
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"frequency support\n");
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}
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return result;
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}
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int acpi_processor_notify_smm(struct module *calling_module)
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@ -190,6 +190,30 @@ extern int kernel_text_address(unsigned long addr);
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struct pid;
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extern struct pid *session_of_pgrp(struct pid *pgrp);
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/*
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* FW_BUG
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* Add this to a message where you are sure the firmware is buggy or behaves
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* really stupid or out of spec. Be aware that the responsible BIOS developer
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* should be able to fix this issue or at least get a concrete idea of the
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* problem by reading your message without the need of looking at the kernel
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* code.
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*
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* Use it for definite and high priority BIOS bugs.
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*
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* FW_WARN
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* Use it for not that clear (e.g. could the kernel messed up things already?)
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* and medium priority BIOS bugs.
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*
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* FW_INFO
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* Use this one if you want to tell the user or vendor about something
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* suspicious, but generally harmless related to the firmware.
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*
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* Use it for information or very low priority BIOS bugs.
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*/
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#define FW_BUG "[Firmware Bug]: "
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#define FW_WARN "[Firmware Warn]: "
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#define FW_INFO "[Firmware Info]: "
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#ifdef CONFIG_PRINTK
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asmlinkage int vprintk(const char *fmt, va_list args)
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__attribute__ ((format (printf, 1, 0)));
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