diff mbox series

[1/8] x86/amd: Move amd_get_highest_perf() from amd.c to cppc.c

Message ID 20240826211358.2694603-2-superm1@kernel.org (mailing list archive)
State Handled Elsewhere, archived
Headers show
Series Adjustments for preferred core detection | expand

Commit Message

Mario Limonciello Aug. 26, 2024, 9:13 p.m. UTC 
From: Mario Limonciello <mario.limonciello@amd.com>

To prepare to let amd_get_highest_perf() detect preferred cores
it will require CPPC functions. Move amd_get_highest_perf() to
cppc.c to prepare for 'preferred core detection' rework.

No functional changes intended.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
 arch/x86/kernel/acpi/cppc.c | 16 ++++++++++++++++
 arch/x86/kernel/cpu/amd.c   | 16 ----------------
 2 files changed, 16 insertions(+), 16 deletions(-)

Comments

Yuan, Perry Aug. 27, 2024, 6:29 a.m. UTC | #1 
[AMD Official Use Only - AMD Internal Distribution Only]

> -----Original Message-----
> From: Mario Limonciello <superm1@kernel.org>
> Sent: Tuesday, August 27, 2024 5:14 AM
> To: Borislav Petkov <bp@alien8.de>; Shenoy, Gautham Ranjal
> <gautham.shenoy@amd.com>; Yuan, Perry <Perry.Yuan@amd.com>
> Cc: maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT) <x86@kernel.org>;
> Rafael J . Wysocki <rafael@kernel.org>; open list:X86 ARCHITECTURE (32-BIT
> AND 64-BIT) <linux-kernel@vger.kernel.org>; open list:ACPI <linux-
> acpi@vger.kernel.org>; open list:CPU FREQUENCY SCALING FRAMEWORK
> <linux-pm@vger.kernel.org>; Limonciello, Mario
> <Mario.Limonciello@amd.com>
> Subject: [PATCH 1/8] x86/amd: Move amd_get_highest_perf() from amd.c to
> cppc.c
>
> From: Mario Limonciello <mario.limonciello@amd.com>
>
> To prepare to let amd_get_highest_perf() detect preferred cores it will require
> CPPC functions. Move amd_get_highest_perf() to cppc.c to prepare for
> 'preferred core detection' rework.
>
> No functional changes intended.
>
> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
> ---
>  arch/x86/kernel/acpi/cppc.c | 16 ++++++++++++++++
>  arch/x86/kernel/cpu/amd.c   | 16 ----------------
>  2 files changed, 16 insertions(+), 16 deletions(-)
>
> diff --git a/arch/x86/kernel/acpi/cppc.c b/arch/x86/kernel/acpi/cppc.c index
> ff8f25faca3dd..7ec8f2ce859c8 100644
> --- a/arch/x86/kernel/acpi/cppc.c
> +++ b/arch/x86/kernel/acpi/cppc.c
> @@ -116,3 +116,19 @@ void init_freq_invariance_cppc(void)
>       init_done = true;
>       mutex_unlock(&freq_invariance_lock);
>  }
> +
> +u32 amd_get_highest_perf(void)
> +{
> +     struct cpuinfo_x86 *c = &boot_cpu_data;
> +
> +     if (c->x86 == 0x17 && ((c->x86_model >= 0x30 && c->x86_model <
> 0x40) ||
> +                            (c->x86_model >= 0x70 && c->x86_model <
> 0x80)))
> +             return 166;
> +
> +     if (c->x86 == 0x19 && ((c->x86_model >= 0x20 && c->x86_model <
> 0x30) ||
> +                            (c->x86_model >= 0x40 && c->x86_model <
> 0x70)))
> +             return 166;
> +
> +     return 255;
> +}
> +EXPORT_SYMBOL_GPL(amd_get_highest_perf);
> diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index
> 1e0fe5f8ab84e..015971adadfc7 100644
> --- a/arch/x86/kernel/cpu/amd.c
> +++ b/arch/x86/kernel/cpu/amd.c
> @@ -1190,22 +1190,6 @@ unsigned long amd_get_dr_addr_mask(unsigned
> int dr)  }  EXPORT_SYMBOL_GPL(amd_get_dr_addr_mask);
>
> -u32 amd_get_highest_perf(void)
> -{
> -     struct cpuinfo_x86 *c = &boot_cpu_data;
> -
> -     if (c->x86 == 0x17 && ((c->x86_model >= 0x30 && c->x86_model <
> 0x40) ||
> -                            (c->x86_model >= 0x70 && c->x86_model <
> 0x80)))
> -             return 166;
> -
> -     if (c->x86 == 0x19 && ((c->x86_model >= 0x20 && c->x86_model <
> 0x30) ||
> -                            (c->x86_model >= 0x40 && c->x86_model <
> 0x70)))
> -             return 166;
> -
> -     return 255;
> -}
> -EXPORT_SYMBOL_GPL(amd_get_highest_perf);
> -
>  static void zenbleed_check_cpu(void *unused)  {
>       struct cpuinfo_x86 *c = &cpu_data(smp_processor_id());
> --
> 2.43.0
>

LGTM, thanks!

Reviewed-by: Perry Yuan <perry.yuan@amd.com>
Gautham R. Shenoy Aug. 27, 2024, 2:08 p.m. UTC | #2 
On Mon, Aug 26, 2024 at 04:13:51PM -0500, Mario Limonciello wrote:
> From: Mario Limonciello <mario.limonciello@amd.com>
> 
> To prepare to let amd_get_highest_perf() detect preferred cores
> it will require CPPC functions. Move amd_get_highest_perf() to
> cppc.c to prepare for 'preferred core detection' rework.
> 
> No functional changes intended.
> 
> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>

Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>

--
Thanks and Regards
gautham.

> ---
>  arch/x86/kernel/acpi/cppc.c | 16 ++++++++++++++++
>  arch/x86/kernel/cpu/amd.c   | 16 ----------------
>  2 files changed, 16 insertions(+), 16 deletions(-)
> 
> diff --git a/arch/x86/kernel/acpi/cppc.c b/arch/x86/kernel/acpi/cppc.c
> index ff8f25faca3dd..7ec8f2ce859c8 100644
> --- a/arch/x86/kernel/acpi/cppc.c
> +++ b/arch/x86/kernel/acpi/cppc.c
> @@ -116,3 +116,19 @@ void init_freq_invariance_cppc(void)
>  	init_done = true;
>  	mutex_unlock(&freq_invariance_lock);
>  }
> +
> +u32 amd_get_highest_perf(void)
> +{
> +	struct cpuinfo_x86 *c = &boot_cpu_data;
> +
> +	if (c->x86 == 0x17 && ((c->x86_model >= 0x30 && c->x86_model < 0x40) ||
> +			       (c->x86_model >= 0x70 && c->x86_model < 0x80)))
> +		return 166;
> +
> +	if (c->x86 == 0x19 && ((c->x86_model >= 0x20 && c->x86_model < 0x30) ||
> +			       (c->x86_model >= 0x40 && c->x86_model < 0x70)))
> +		return 166;
> +
> +	return 255;
> +}
> +EXPORT_SYMBOL_GPL(amd_get_highest_perf);
> diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
> index 1e0fe5f8ab84e..015971adadfc7 100644
> --- a/arch/x86/kernel/cpu/amd.c
> +++ b/arch/x86/kernel/cpu/amd.c
> @@ -1190,22 +1190,6 @@ unsigned long amd_get_dr_addr_mask(unsigned int dr)
>  }
>  EXPORT_SYMBOL_GPL(amd_get_dr_addr_mask);
>  
> -u32 amd_get_highest_perf(void)
> -{
> -	struct cpuinfo_x86 *c = &boot_cpu_data;
> -
> -	if (c->x86 == 0x17 && ((c->x86_model >= 0x30 && c->x86_model < 0x40) ||
> -			       (c->x86_model >= 0x70 && c->x86_model < 0x80)))
> -		return 166;
> -
> -	if (c->x86 == 0x19 && ((c->x86_model >= 0x20 && c->x86_model < 0x30) ||
> -			       (c->x86_model >= 0x40 && c->x86_model < 0x70)))
> -		return 166;
> -
> -	return 255;
> -}
> -EXPORT_SYMBOL_GPL(amd_get_highest_perf);
> -
>  static void zenbleed_check_cpu(void *unused)
>  {
>  	struct cpuinfo_x86 *c = &cpu_data(smp_processor_id());
> -- 
> 2.43.0
>
kernel test robot Aug. 28, 2024, 5:23 a.m. UTC | #3 
Hi Mario,

kernel test robot noticed the following build errors:

[auto build test ERROR on rafael-pm/linux-next]
[also build test ERROR on rafael-pm/bleeding-edge tip/x86/core tip/master linus/master v6.11-rc5 next-20240827]
[cannot apply to tip/auto-latest]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Mario-Limonciello/x86-amd-Move-amd_get_highest_perf-from-amd-c-to-cppc-c/20240827-051648
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next
patch link:    https://lore.kernel.org/r/20240826211358.2694603-2-superm1%40kernel.org
patch subject: [PATCH 1/8] x86/amd: Move amd_get_highest_perf() from amd.c to cppc.c
config: x86_64-randconfig-074-20240828 (https://download.01.org/0day-ci/archive/20240828/202408281228.SdvJBD9o-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240828/202408281228.SdvJBD9o-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408281228.SdvJBD9o-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/x86/kernel/acpi/cppc.c:120:5: error: redefinition of 'amd_get_highest_perf'
     120 | u32 amd_get_highest_perf(void)
         |     ^~~~~~~~~~~~~~~~~~~~
   In file included from arch/x86/include/asm/cpufeature.h:5,
                    from arch/x86/include/asm/thread_info.h:59,
                    from include/linux/thread_info.h:60,
                    from include/linux/spinlock.h:60,
                    from include/linux/mmzone.h:8,
                    from include/linux/gfp.h:7,
                    from include/linux/slab.h:16,
                    from include/linux/resource_ext.h:11,
                    from include/linux/acpi.h:13,
                    from include/acpi/cppc_acpi.h:13,
                    from arch/x86/kernel/acpi/cppc.c:7:
   arch/x86/include/asm/processor.h:708:19: note: previous definition of 'amd_get_highest_perf' with type 'u32(void)' {aka 'unsigned int(void)'}
     708 | static inline u32 amd_get_highest_perf(void)            { return 0; }
         |                   ^~~~~~~~~~~~~~~~~~~~


vim +/amd_get_highest_perf +120 arch/x86/kernel/acpi/cppc.c

   119	
 > 120	u32 amd_get_highest_perf(void)
diff mbox series

Patch

diff --git a/arch/x86/kernel/acpi/cppc.c b/arch/x86/kernel/acpi/cppc.c
index ff8f25faca3dd..7ec8f2ce859c8 100644
--- a/arch/x86/kernel/acpi/cppc.c
+++ b/arch/x86/kernel/acpi/cppc.c
@@ -116,3 +116,19 @@  void init_freq_invariance_cppc(void)
 	init_done = true;
 	mutex_unlock(&freq_invariance_lock);
 }
+
+u32 amd_get_highest_perf(void)
+{
+	struct cpuinfo_x86 *c = &boot_cpu_data;
+
+	if (c->x86 == 0x17 && ((c->x86_model >= 0x30 && c->x86_model < 0x40) ||
+			       (c->x86_model >= 0x70 && c->x86_model < 0x80)))
+		return 166;
+
+	if (c->x86 == 0x19 && ((c->x86_model >= 0x20 && c->x86_model < 0x30) ||
+			       (c->x86_model >= 0x40 && c->x86_model < 0x70)))
+		return 166;
+
+	return 255;
+}
+EXPORT_SYMBOL_GPL(amd_get_highest_perf);
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 1e0fe5f8ab84e..015971adadfc7 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -1190,22 +1190,6 @@  unsigned long amd_get_dr_addr_mask(unsigned int dr)
 }
 EXPORT_SYMBOL_GPL(amd_get_dr_addr_mask);
 
-u32 amd_get_highest_perf(void)
-{
-	struct cpuinfo_x86 *c = &boot_cpu_data;
-
-	if (c->x86 == 0x17 && ((c->x86_model >= 0x30 && c->x86_model < 0x40) ||
-			       (c->x86_model >= 0x70 && c->x86_model < 0x80)))
-		return 166;
-
-	if (c->x86 == 0x19 && ((c->x86_model >= 0x20 && c->x86_model < 0x30) ||
-			       (c->x86_model >= 0x40 && c->x86_model < 0x70)))
-		return 166;
-
-	return 255;
-}
-EXPORT_SYMBOL_GPL(amd_get_highest_perf);
-
 static void zenbleed_check_cpu(void *unused)
 {
 	struct cpuinfo_x86 *c = &cpu_data(smp_processor_id());