From: Sean Christopherson <seanjc@google•com>
To: "Xin Li (Intel)" <xin@zytor•com>
Cc: linux-kernel@vger•kernel.org, kvm@vger•kernel.org,
linux-perf-users@vger•kernel.org, linux-hyperv@vger•kernel.org,
virtualization@lists•linux.dev, linux-pm@vger•kernel.org,
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acme@kernel•org, jgross@suse•com, andrew.cooper3@citrix•com,
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alexander.shishkin@linux•intel.com, jolsa@kernel•org,
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kan.liang@linux•intel.com, wei.liu@kernel•org,
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tony.luck@intel•com, pbonzini@redhat•com, vkuznets@redhat•com,
luto@kernel•org, boris.ostrovsky@oracle•com, kys@microsoft•com,
haiyangz@microsoft•com, decui@microsoft•com
Subject: Re: [RFC PATCH v2 03/34] x86/msr: Rename rdpmcl() to rdpmcq()
Date: Wed, 23 Apr 2025 07:28:39 -0700 [thread overview]
Message-ID: <aAj5F9IZXG7MB0ai@google.com> (raw)
In-Reply-To: <20250422082216.1954310-4-xin@zytor.com>
On Tue, Apr 22, 2025, Xin Li (Intel) wrote:
> Signed-off-by: Xin Li (Intel) <xin@zytor•com>
> ---
> arch/x86/events/amd/uncore.c | 2 +-
> arch/x86/events/core.c | 2 +-
> arch/x86/events/intel/core.c | 4 ++--
> arch/x86/events/intel/ds.c | 2 +-
> arch/x86/include/asm/msr.h | 2 +-
> arch/x86/include/asm/paravirt.h | 2 +-
> arch/x86/kernel/cpu/resctrl/pseudo_lock.c | 12 ++++++------
> 7 files changed, 13 insertions(+), 13 deletions(-)
>
> diff --git a/arch/x86/events/amd/uncore.c b/arch/x86/events/amd/uncore.c
> index f231e1078e51..b9933ab3116c 100644
> --- a/arch/x86/events/amd/uncore.c
> +++ b/arch/x86/events/amd/uncore.c
> @@ -152,7 +152,7 @@ static void amd_uncore_read(struct perf_event *event)
> if (hwc->event_base_rdpmc < 0)
> rdmsrq(hwc->event_base, new);
> else
> - rdpmcl(hwc->event_base_rdpmc, new);
> + rdpmcq(hwc->event_base_rdpmc, new);
Now that rdpmc() is gone, i.e. rdpmcl/rdpmcq() is the only helper, why not simply
rename rdpmcl() => rdpmc()? I see no point in adding a 'q' qualifier; it doesn't
disambiguate anything and IMO is pure noise.
next prev parent reply other threads:[~2025-04-23 14:28 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-22 8:21 [RFC PATCH v2 00/34] MSR refactor with new MSR instructions support Xin Li (Intel)
2025-04-22 8:21 ` [RFC PATCH v2 01/34] x86/msr: Move rdtsc{,_ordered}() to <asm/tsc.h> Xin Li (Intel)
2025-04-23 14:13 ` Dave Hansen
2025-04-23 17:12 ` Xin Li
2025-04-22 8:21 ` [RFC PATCH v2 02/34] x86/msr: Remove rdpmc() Xin Li (Intel)
2025-04-23 14:23 ` Dave Hansen
2025-04-22 8:21 ` [RFC PATCH v2 03/34] x86/msr: Rename rdpmcl() to rdpmcq() Xin Li (Intel)
2025-04-23 14:24 ` Dave Hansen
2025-04-23 14:28 ` Sean Christopherson [this message]
2025-04-23 15:06 ` Dave Hansen
2025-04-23 17:23 ` Xin Li
2025-04-22 8:21 ` [RFC PATCH v2 04/34] x86/msr: Convert rdpmcq() into a function Xin Li (Intel)
2025-04-23 14:25 ` Dave Hansen
2025-04-22 8:21 ` [RFC PATCH v2 05/34] x86/msr: Return u64 consistently in Xen PMC read functions Xin Li (Intel)
2025-04-22 8:40 ` Jürgen Groß
2025-04-22 8:21 ` [RFC PATCH v2 06/34] x86/msr: Use the alternatives mechanism to read PMC Xin Li (Intel)
2025-04-22 8:38 ` Jürgen Groß
2025-04-22 9:12 ` Xin Li
2025-04-22 9:28 ` Juergen Gross
2025-04-23 7:40 ` Xin Li
2025-04-22 8:21 ` [RFC PATCH v2 07/34] x86/msr: Convert __wrmsr() uses to native_wrmsr{,q}() uses Xin Li (Intel)
2025-04-22 8:21 ` [RFC PATCH v2 08/34] x86/msr: Convert a native_wrmsr() use to native_wrmsrq() Xin Li (Intel)
2025-04-23 15:51 ` Dave Hansen
2025-04-23 17:27 ` Xin Li
2025-04-23 23:23 ` Xin Li
2025-04-22 8:21 ` [RFC PATCH v2 09/34] x86/msr: Add the native_rdmsrq() helper Xin Li (Intel)
2025-04-22 8:21 ` [RFC PATCH v2 10/34] x86/msr: Convert __rdmsr() uses to native_rdmsrq() uses Xin Li (Intel)
2025-04-22 15:09 ` Sean Christopherson
2025-04-23 9:27 ` Xin Li
2025-04-23 13:37 ` Sean Christopherson
2025-04-23 14:02 ` Dave Hansen
2025-04-22 8:21 ` [RFC PATCH v2 11/34] x86/msr: Remove calling native_{read,write}_msr{,_safe}() in pmu_msr_{read,write}() Xin Li (Intel)
2025-04-24 6:25 ` Mi, Dapeng
2025-04-24 7:16 ` Xin Li
2025-04-22 8:21 ` [RFC PATCH v2 12/34] x86/msr: Remove pmu_msr_{read,write}() Xin Li (Intel)
2025-04-24 6:33 ` Mi, Dapeng
2025-04-24 7:21 ` Xin Li
2025-04-24 7:43 ` Mi, Dapeng
2025-04-24 7:50 ` Xin Li
2025-04-24 10:05 ` Jürgen Groß
2025-04-24 17:49 ` Xin Li
2025-04-24 21:14 ` H. Peter Anvin
2025-04-24 22:24 ` Xin Li
2025-04-22 8:21 ` [RFC PATCH v2 13/34] x86/xen/msr: Remove the error pointer argument from set_reg() Xin Li (Intel)
2025-04-24 10:11 ` Jürgen Groß
2025-04-24 17:50 ` Xin Li
2025-04-22 8:21 ` [RFC PATCH v2 14/34] x86/msr: refactor pv_cpu_ops.write_msr{_safe}() Xin Li (Intel)
2025-04-24 10:16 ` Jürgen Groß
2025-04-22 8:21 ` [RFC PATCH v2 15/34] x86/msr: Replace wrmsr(msr, low, 0) with wrmsrq(msr, low) Xin Li (Intel)
2025-04-22 8:21 ` [RFC PATCH v2 16/34] x86/msr: Change function type of native_read_msr_safe() Xin Li (Intel)
2025-04-22 8:21 ` [RFC PATCH v2 17/34] x86/cpufeatures: Add a CPU feature bit for MSR immediate form instructions Xin Li (Intel)
2025-04-22 8:21 ` [RFC PATCH v2 18/34] x86/opcode: Add immediate form MSR instructions Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 19/34] x86/extable: Add support for " Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 20/34] x86/extable: Implement EX_TYPE_FUNC_REWIND Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 21/34] x86/msr: Utilize the alternatives mechanism to write MSR Xin Li (Intel)
2025-04-22 9:57 ` Jürgen Groß
2025-04-23 8:51 ` Xin Li
2025-04-23 16:05 ` Jürgen Groß
2025-04-24 8:06 ` Xin Li
2025-04-24 8:14 ` Jürgen Groß
2025-04-25 1:15 ` H. Peter Anvin
2025-04-25 3:44 ` H. Peter Anvin
2025-04-25 7:01 ` Jürgen Groß
2025-04-25 15:28 ` H. Peter Anvin
2025-04-25 6:51 ` Jürgen Groß
2025-04-25 12:33 ` Peter Zijlstra
2025-04-25 12:51 ` Jürgen Groß
2025-04-25 20:12 ` H. Peter Anvin
2025-04-25 15:29 ` H. Peter Anvin
2025-04-25 7:11 ` Peter Zijlstra
2025-04-22 8:22 ` [RFC PATCH v2 22/34] x86/msr: Utilize the alternatives mechanism to read MSR Xin Li (Intel)
2025-04-22 8:59 ` Jürgen Groß
2025-04-22 9:20 ` Xin Li
2025-04-22 9:57 ` Jürgen Groß
2025-04-22 11:12 ` Jürgen Groß
2025-04-23 9:03 ` Xin Li
2025-04-23 16:11 ` Jürgen Groß
2025-04-22 8:22 ` [RFC PATCH v2 23/34] x86/extable: Remove new dead code in ex_handler_msr() Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 24/34] x86/mce: Use native MSR API __native_{wr,rd}msrq() Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 25/34] x86/msr: Rename native_wrmsrq() to native_wrmsrq_no_trace() Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 26/34] x86/msr: Rename native_wrmsr() to native_wrmsr_no_trace() Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 27/34] x86/msr: Rename native_write_msr() to native_wrmsrq() Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 28/34] x86/msr: Rename native_write_msr_safe() to native_wrmsrq_safe() Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 29/34] x86/msr: Rename native_rdmsrq() to native_rdmsrq_no_trace() Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 30/34] x86/msr: Rename native_rdmsr() to native_rdmsr_no_trace() Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 31/34] x86/msr: Rename native_read_msr() to native_rdmsrq() Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 32/34] x86/msr: Rename native_read_msr_safe() to native_rdmsrq_safe() Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 33/34] x86/msr: Move the ARGS macros after the MSR read/write APIs Xin Li (Intel)
2025-04-22 8:22 ` [RFC PATCH v2 34/34] x86/msr: Convert native_rdmsr_no_trace() uses to native_rdmsrq_no_trace() uses Xin Li (Intel)
2025-04-22 15:03 ` [RFC PATCH v2 00/34] MSR refactor with new MSR instructions support Sean Christopherson
2025-04-22 17:51 ` Xin Li
2025-04-22 18:05 ` Luck, Tony
2025-04-22 19:44 ` Ingo Molnar
2025-04-22 19:51 ` Sean Christopherson
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