| Message ID | 20250320214132.664522-1-superm1@kernel.org (mailing list archive) |
|---|---|
| State | New |
| Delegated to: | Mario Limonciello |
| Headers | show |
| Series | cpufreq/amd-pstate: Prefix setup messages with FW_BUG | expand |
On 3/21/2025 3:11 AM, Mario Limonciello wrote: > From: Mario Limonciello <mario.limonciello@amd.com> > > To make it clearer that amd-pstate failing to setup is a problem > with the firmware, prefix several messages with FW_BUG. > > Suggested-by: Paul Menzel <pmenzel@molgen.mpg.de> > Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> > --- > drivers/cpufreq/amd-pstate.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c > index 024d33d5e3670..0a9d6fe426d1c 100644 > --- a/drivers/cpufreq/amd-pstate.c > +++ b/drivers/cpufreq/amd-pstate.c > @@ -931,13 +931,13 @@ static int amd_pstate_init_freq(struct amd_cpudata *cpudata) > * Check _CPC in ACPI table objects if any values are incorrect > */ > if (min_freq <= 0 || max_freq <= 0 || nominal_freq <= 0 || min_freq > max_freq) { > - pr_err("min_freq(%d) or max_freq(%d) or nominal_freq(%d) value is incorrect\n", > + pr_err(FW_BUG "min_freq(%d) or max_freq(%d) or nominal_freq(%d) value is incorrect\n", > min_freq, max_freq, nominal_freq); > return -EINVAL; > } > > if (lowest_nonlinear_freq <= min_freq || lowest_nonlinear_freq > nominal_freq) { > - pr_err("lowest_nonlinear_freq(%d) value is out of range [min_freq(%d), nominal_freq(%d)]\n", > + pr_err(FW_BUG "lowest_nonlinear_freq(%d) value is out of range [min_freq(%d), nominal_freq(%d)]\n", > lowest_nonlinear_freq, min_freq, nominal_freq); > return -EINVAL; > } > @@ -1505,7 +1505,7 @@ static int amd_pstate_epp_cpu_init(struct cpufreq_policy *policy) > return 0; > > free_cpudata1: > - pr_warn("Failed to initialize CPU %d: %d\n", policy->cpu, ret); > + pr_warn(FW_BUG "Failed to initialize CPU %d: %d\n", policy->cpu, ret); Just thinking are we sure that we land here only through a firmware bug? If not, we should probably use FW_WARN ?, or Should we add to the error message the specific firmware issue that might cause each of the functions to fail (e.g. amd_pstate_init_perf(), amd_pstate_init_freq(), etc). Comments for the macros, for reference, * FW_BUG * Add this to a message where you are sure the firmware is buggy or behaves * really stupid or out of spec. Be aware that the responsible BIOS developer * should be able to fix this issue or at least get a concrete idea of the * problem by reading your message without the need of looking at the kernel * code. * * Use it for definite and high priority BIOS bugs. * * FW_WARN * Use it for not that clear (e.g. could the kernel messed up things already?) * and medium priority BIOS bugs. > kfree(cpudata); > return ret; > }
diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c index 024d33d5e3670..0a9d6fe426d1c 100644 --- a/drivers/cpufreq/amd-pstate.c +++ b/drivers/cpufreq/amd-pstate.c @@ -931,13 +931,13 @@ static int amd_pstate_init_freq(struct amd_cpudata *cpudata) * Check _CPC in ACPI table objects if any values are incorrect */ if (min_freq <= 0 || max_freq <= 0 || nominal_freq <= 0 || min_freq > max_freq) { - pr_err("min_freq(%d) or max_freq(%d) or nominal_freq(%d) value is incorrect\n", + pr_err(FW_BUG "min_freq(%d) or max_freq(%d) or nominal_freq(%d) value is incorrect\n", min_freq, max_freq, nominal_freq); return -EINVAL; } if (lowest_nonlinear_freq <= min_freq || lowest_nonlinear_freq > nominal_freq) { - pr_err("lowest_nonlinear_freq(%d) value is out of range [min_freq(%d), nominal_freq(%d)]\n", + pr_err(FW_BUG "lowest_nonlinear_freq(%d) value is out of range [min_freq(%d), nominal_freq(%d)]\n", lowest_nonlinear_freq, min_freq, nominal_freq); return -EINVAL; } @@ -1505,7 +1505,7 @@ static int amd_pstate_epp_cpu_init(struct cpufreq_policy *policy) return 0; free_cpudata1: - pr_warn("Failed to initialize CPU %d: %d\n", policy->cpu, ret); + pr_warn(FW_BUG "Failed to initialize CPU %d: %d\n", policy->cpu, ret); kfree(cpudata); return ret; }