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Peter Anvin" , Tony Luck , "Rafael J. Wysocki" , Viresh Kumar , Guenter Roeck , Daniel Lezcano , Zhang Rui , Lukasz Luba , Peter Zijlstra , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , Huang Rui , Mario Limonciello , Perry Yuan , K Prateek Nayak , Srinivas Pandruvada , Len Brown , Hans de Goede , =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Subject: [PATCH 0/8] x86/msr: Drop 32-bit variants of *_on_cpu() MSR functions Date: Fri, 5 Jun 2026 09:08:18 +0200 Message-ID: <20260605070826.2995913-1-jgross@suse.com> X-Mailer: git-send-email 2.54.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Flag: NO X-Spamd-Result: default: False [-2.80 / 50.00]; BAYES_HAM(-3.00)[100.00%]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; TO_DN_SOME(0.00)[]; RCPT_COUNT_TWELVE(0.00)[38]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.com:mid,imap1.dmz-prg2.suse.org:helo]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; FUZZY_RATELIMITED(0.00)[rspamd.com]; DKIM_SIGNED(0.00)[suse.com:s=susede1]; R_RATELIMIT(0.00)[to_ip_from(RLfdszjqhz8kzzb9uwpzdm8png)]; RCVD_TLS_ALL(0.00)[] X-Spam-Level: X-Spam-Score: -2.80 Drop the variants using 2 32-bit values instead of a single 64-bit one of the *_on_cpu() MSR access functions. Juergen Gross (8): x86/msr: Switch rdmsr_on_cpu() to return a 64-bit quantity x86/msr: Switch all callers of rdmsrq_on_cpu() to use rdmsr_on_cpu() x86/msr: Switch wrmsr_on_cpu() to use a 64-bit quantity x86/msr: Switch all callers of wrmsrq_on_cpu() to use wrmsr_on_cpu() x86/msr: Switch rdmsr_safe_on_cpu() to return a 64-bit quantity x86/msr: Switch all callers of rdmsrq_safe_on_cpu() to use rdmsr_safe_on_cpu() x86/msr: Switch wrmsr_safe_on_cpu() to use a 64-bit quantity x86/msr: Switch all callers of wrmsrq_safe_on_cpu() to use wrmsr_safe_on_cpu() arch/x86/events/intel/ds.c | 11 +-- arch/x86/events/intel/pt.c | 2 +- arch/x86/events/intel/uncore_discovery.c | 2 +- arch/x86/events/intel/uncore_snbep.c | 2 +- arch/x86/include/asm/msr.h | 44 +++-------- arch/x86/kernel/acpi/cppc.c | 8 +- arch/x86/kernel/cpu/intel_epb.c | 8 +- arch/x86/kernel/cpu/mce/amd.c | 6 +- arch/x86/kernel/cpu/mce/inject.c | 12 +-- arch/x86/kernel/cpu/microcode/intel.c | 2 +- arch/x86/kernel/msr.c | 8 +- arch/x86/lib/msr-smp.c | 79 ++----------------- drivers/cpufreq/acpi-cpufreq.c | 4 +- drivers/cpufreq/amd-pstate-ut.c | 2 +- drivers/cpufreq/amd-pstate.c | 21 +++-- drivers/cpufreq/amd_freq_sensitivity.c | 4 +- drivers/cpufreq/intel_pstate.c | 64 +++++++-------- drivers/cpufreq/p4-clockmod.c | 32 ++++---- drivers/cpufreq/speedstep-centrino.c | 27 ++++--- drivers/hwmon/coretemp.c | 44 +++++------ drivers/hwmon/via-cputemp.c | 16 ++-- drivers/platform/x86/amd/hfi/hfi.c | 4 +- .../intel/speed_select_if/isst_if_common.c | 13 ++- .../intel/uncore-frequency/uncore-frequency.c | 12 +-- drivers/powercap/intel_rapl_msr.c | 2 +- drivers/thermal/intel/intel_tcc.c | 43 +++++----- drivers/thermal/intel/x86_pkg_temp_thermal.c | 22 +++--- 27 files changed, 203 insertions(+), 291 deletions(-) -- 2.54.0